Release 4.4.0

Bumps [build/php](https://github.com/pmmp/php-build-scripts) from `8138c6a` to `1110349`.
- [Release notes](https://github.com/pmmp/php-build-scripts/releases)
- [Commits](8138c6a4a4...11103498ca)

---
updated-dependencies:
- dependency-name: build/php
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.gitattributes

@@ -4,6 +4,7 @@
 *.sh text eol=lf
 *.txt text eol=lf
 *.properties text eol=lf
+*.neon text eol=lf
 *.bat text eol=crlf
 *.cmd text eol=crlf
 *.ps1 text eol=crlf

.github/dependabot.yml

@@ -6,3 +6,13 @@ updates:
     interval: daily
     time: "10:00"
   open-pull-requests-limit: 10
+
+- package-ecosystem: gitsubmodule
+  directory: "/"
+  schedule:
+    interval: daily
+
+- package-ecosystem: github-actions
+  directory: "/"
+  schedule:
+    interval: daily

.github/workflows/build-docker-image.yml

@@ -0,0 +1,97 @@
+name: Update Docker Hub images
+
+on:
+  release:
+    types:
+      - published
+
+jobs:
+  build:
+    name: Update Docker Hub images
+    runs-on: ubuntu-20.04
+
+    steps:
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Login to DockerHub
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Clone pmmp/PocketMine-Docker repository
+        uses: actions/checkout@v3
+        with:
+          repository: pmmp/PocketMine-Docker
+          fetch-depth: 1
+
+      - name: Get tag names
+        id: tag-name
+        run: |
+          VERSION=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{')
+          echo ::set-output name=TAG_NAME::$VERSION
+          echo ::set-output name=MAJOR::$(echo $VERSION | cut -d. -f1)
+          echo ::set-output name=MINOR::$(echo $VERSION | cut -d. -f1-2)
+
+      - name: Download new release information
+        run: curl -f -L ${{ github.server_url }}/${{ github.repository }}/releases/download/${{ steps.tag-name.outputs.TAG_NAME }}/build_info.json -o new_build_info.json
+
+      - name: Detect channel
+        id: channel
+        run: echo ::set-output name=CHANNEL::$(jq -r '.channel' new_build_info.json)
+
+      - name: Get name of Docker repository name
+        id: docker-repo-name
+        run: echo ::set-output name=NAME::$(echo "${GITHUB_REPOSITORY,,}")
+
+      - name: Build image for tag
+        uses: docker/build-push-action@v3.0.0
+        with:
+          push: true
+          context: ./pocketmine-mp
+          tags: |
+            ${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.TAG_NAME }}
+#            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.TAG_NAME }}
+          build-args: |
+            PMMP_TAG=${{ steps.tag-name.outputs.TAG_NAME }}
+            PMMP_REPO=${{ github.repository }}
+
+      - name: Build image for major tag
+        if: steps.channel.outputs.CHANNEL == 'stable'
+        uses: docker/build-push-action@v3.0.0
+        with:
+          push: true
+          context: ./pocketmine-mp
+          tags: |
+            ${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.MAJOR }}
+#            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.MAJOR }}
+          build-args: |
+            PMMP_TAG=${{ steps.tag-name.outputs.TAG_NAME }}
+            PMMP_REPO=${{ github.repository }}
+
+      - name: Build image for minor tag
+        if: steps.channel.outputs.CHANNEL == 'stable'
+        uses: docker/build-push-action@v3.0.0
+        with:
+          push: true
+          context: ./pocketmine-mp
+          tags: |
+            ${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.MINOR }}
+#            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.tag-name.outputs.MINOR }}
+          build-args: |
+            PMMP_TAG=${{ steps.tag-name.outputs.TAG_NAME }}
+            PMMP_REPO=${{ github.repository }}
+
+      - name: Build image for latest tag
+        if: steps.channel.outputs.CHANNEL == 'stable'
+        uses: docker/build-push-action@v3.0.0
+        with:
+          push: true
+          context: ./pocketmine-mp
+          tags: |
+            ${{ steps.docker-repo-name.outputs.NAME }}:latest
+#            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:latest
+          build-args: |
+            PMMP_TAG=${{ steps.tag-name.outputs.TAG_NAME }}
+            PMMP_REPO=${{ github.repository }}

.github/workflows/draft-release.yml

@@ -13,17 +13,17 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.12.0
+        uses: shivammathur/setup-php@2.19.0
         with:
           php-version: 8.0
 
       - name: Restore Composer package cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/composer/files
@@ -35,17 +35,18 @@ jobs:
       - name: Install Composer dependencies
         run: composer install --no-dev --prefer-dist --no-interaction --ignore-platform-reqs
 
-      - name: Patch VersionInfo
+      - name: Calculate build number
+        id: build-number
         run: |
-          BUILD_NUMBER=2000+$GITHUB_RUN_NUMBER #to stay above jenkins
+          BUILD_NUMBER=$((2000+$GITHUB_RUN_NUMBER)) #to stay above jenkins
           echo "Build number: $BUILD_NUMBER"
-          sed -i "s/const BUILD_NUMBER = 0/const BUILD_NUMBER = ${BUILD_NUMBER}/" src/VersionInfo.php
+          echo ::set-output name=BUILD_NUMBER::$BUILD_NUMBER
 
       - name: Minify BedrockData JSON files
         run: php vendor/pocketmine/bedrock-data/.minify_json.php
 
       - name: Build PocketMine-MP.phar
-        run: php -dphar.readonly=0 build/server-phar.php --git ${{ github.sha }}
+        run: php -dphar.readonly=0 build/server-phar.php --git ${{ github.sha }} --build ${{ steps.build-number.outputs.BUILD_NUMBER }}
 
       - name: Get PocketMine-MP release version
         id: get-pm-version
@@ -56,10 +57,10 @@ jobs:
           echo ::set-output name=PM_VERSION_MD::$(php -r 'require "vendor/autoload.php"; echo str_replace(".", "", \pocketmine\VersionInfo::BASE_VERSION);')
 
       - name: Generate build info
-        run: php build/generate-build-info-json.php ${{ github.sha }} ${{ steps.get-pm-version.outputs.PM_VERSION }} ${{ github.repository }} > build_info.json
+        run: php build/generate-build-info-json.php ${{ github.sha }} ${{ steps.get-pm-version.outputs.PM_VERSION }} ${{ github.repository }} ${{ steps.build-number.outputs.BUILD_NUMBER }} > build_info.json
 
       - name: Upload release artifacts
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: release_artifacts
           path: |
@@ -68,7 +69,7 @@ jobs:
             ${{ github.workspace }}/build_info.json
 
       - name: Create draft release
-        uses: ncipollo/release-action@v1.8.6
+        uses: ncipollo/release-action@v1.10.0
         with:
           artifacts: ${{ github.workspace }}/PocketMine-MP.phar,${{ github.workspace }}/start.*,${{ github.workspace }}/build_info.json
           commit: ${{ github.sha }}

.github/workflows/main.yml

@@ -13,20 +13,14 @@ jobs:
     strategy:
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.11]
+        php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2 #needed for build.sh
-      - name: Check for PHP build cache
-        id: php-build-cache
-        uses: actions/cache@v2
+      - name: Build and prepare PHP cache
+        uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
         with:
-          path: "./bin"
-          key: "php-build-generic-${{ matrix.php }}-${{ matrix.image }}-${{ hashFiles('./tests/gh-actions/build.sh') }}"
-
-      - name: Compile PHP
-        if: steps.php-build-cache.outputs.cache-hit != 'true'
-        run: ./tests/gh-actions/build.sh "${{ matrix.php }}"
+          php-version: ${{ matrix.php }}
+          install-path: "./bin"
 
   phpstan:
     name: PHPStan analysis
@@ -37,34 +31,22 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.11]
+        php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - name: Restore PHP build cache
-        id: php-build-cache
-        uses: actions/cache@v2
+      - name: Setup PHP
+        uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
         with:
-          path: "./bin"
-          key: "php-build-generic-${{ matrix.php }}-${{ matrix.image }}-${{ hashFiles('./tests/gh-actions/build.sh') }}"
-
-      - name: Kill build on PHP build cache miss (should never happen)
-        if: steps.php-build-cache.outputs.cache-hit != 'true'
-        run: exit 1
-
-      - name: Install cached PHP's dependencies
-        if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: ./tests/gh-actions/install-dependencies.sh
-
-      - name: Prefix PHP to PATH
-        run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
+          php-version: ${{ matrix.php }}
+          install-path: "./bin"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
 
       - name: Restore Composer package cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/composer/files
@@ -87,34 +69,22 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.11]
+        php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - name: Restore PHP build cache
-        id: php-build-cache
-        uses: actions/cache@v2
+      - name: Setup PHP
+        uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
         with:
-          path: "./bin"
-          key: "php-build-generic-${{ matrix.php }}-${{ matrix.image }}-${{ hashFiles('./tests/gh-actions/build.sh') }}"
-
-      - name: Kill build on PHP build cache miss (should never happen)
-        if: steps.php-build-cache.outputs.cache-hit != 'true'
-        run: exit 1
-
-      - name: Install cached PHP's dependencies
-        if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: ./tests/gh-actions/install-dependencies.sh
-
-      - name: Prefix PHP to PATH
-        run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
+          php-version: ${{ matrix.php }}
+          install-path: "./bin"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
 
       - name: Restore Composer package cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/composer/files
@@ -137,36 +107,24 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.11]
+        php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: true
 
-      - name: Restore PHP build cache
-        id: php-build-cache
-        uses: actions/cache@v2
+      - name: Setup PHP
+        uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
         with:
-          path: "./bin"
-          key: "php-build-generic-${{ matrix.php }}-${{ matrix.image }}-${{ hashFiles('./tests/gh-actions/build.sh') }}"
-
-      - name: Kill build on PHP build cache miss (should never happen)
-        if: steps.php-build-cache.outputs.cache-hit != 'true'
-        run: exit 1
-
-      - name: Install cached PHP's dependencies
-        if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: ./tests/gh-actions/install-dependencies.sh
-
-      - name: Prefix PHP to PATH
-        run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
+          php-version: ${{ matrix.php }}
+          install-path: "./bin"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
 
       - name: Restore Composer package cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/composer/files
@@ -189,34 +147,22 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.11]
+        php: [8.0.18]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - name: Restore PHP build cache
-        id: php-build-cache
-        uses: actions/cache@v2
+      - name: Setup PHP
+        uses: pmmp/setup-php-action@aa636a4fe0c1c035fd9a3f05e360eadd86e06440
         with:
-          path: "./bin"
-          key: "php-build-generic-${{ matrix.php }}-${{ matrix.image }}-${{ hashFiles('./tests/gh-actions/build.sh') }}"
-
-      - name: Kill build on PHP build cache miss (should never happen)
-        if: steps.php-build-cache.outputs.cache-hit != 'true'
-        run: exit 1
-
-      - name: Install cached PHP's dependencies
-        if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: ./tests/gh-actions/install-dependencies.sh
-
-      - name: Prefix PHP to PATH
-        run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
+          php-version: ${{ matrix.php }}
+          install-path: "./bin"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
 
       - name: Restore Composer package cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ~/.cache/composer/files
@@ -246,13 +192,13 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Setup PHP and tools
-        uses: shivammathur/setup-php@2.15.0
+        uses: shivammathur/setup-php@2.19.0
         with:
           php-version: 8.0
           tools: php-cs-fixer:3.2
 
       - name: Run PHP-CS-Fixer
-        run: php-cs-fixer fix --dry-run --diff
+        run: php-cs-fixer fix --dry-run --diff --ansi

.github/workflows/update-updater-api.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Install jq
         run: sudo apt update && sudo apt install jq -y
 
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           repository: pmmp/update.pmmp.io
           ssh-key: ${{ secrets.UPDATE_PMMP_IO_DEPLOY_KEY }}

.php-cs-fixer.php

@@ -18,6 +18,9 @@ return (new PhpCsFixer\Config)
 		'array_syntax' => [
 			'syntax' => 'short'
 		],
+		'binary_operator_spaces' => [
+			'default' => 'single_space'
+		],
 		'blank_line_after_namespace' => true,
 		'blank_line_after_opening_tag' => true,
 		'blank_line_before_statement' => [
@@ -33,12 +36,14 @@ return (new PhpCsFixer\Config)
 		],
 		'declare_strict_types' => true,
 		'elseif' => true,
+		'fully_qualified_strict_types' => true,
 		'global_namespace_import' => [
 			'import_constants' => true,
 			'import_functions' => true,
 			'import_classes' => null,
 		],
 		'indentation_type' => true,
+		'logical_operators' => true,
 		'native_function_invocation' => [
 			'scope' => 'namespaced',
 			'include' => ['@all'],
@@ -68,8 +73,13 @@ return (new PhpCsFixer\Config)
 		],
 		'phpdoc_trim' => true,
 		'phpdoc_trim_consecutive_blank_line_separation' => true,
+		'return_type_declaration' => [
+			'space_before' => 'one'
+		],
+		'single_blank_line_at_eof' => true,
 		'single_import_per_statement' => true,
 		'strict_param' => true,
+		'unary_operator_spaces' => true,
 	])
 	->setFinder($finder)
 	->setIndent("\t")

BUILDING.md

@@ -14,13 +14,12 @@ Because PocketMine-MP requires several non-standard PHP extensions and configura
 If you use a custom binary, you'll need to replace `composer` usages in this guide with `path/to/your/php path/to/your/composer.phar`.
 
 ## Setting up environment
-1. `git clone --recursive https://github.com/pmmp/PocketMine-MP.git`
+1. `git clone https://github.com/pmmp/PocketMine-MP.git`
 2. `composer install`
 
 ## Checking out a different branch to build
 1. `git checkout <branch to checkout>`
-2. `git submodule update --init`
-3. Re-run `composer install` to synchronize dependencies.
+2. Re-run `composer install` to synchronize dependencies.
 
 ## Optimizing for release builds
 1. Add the flags `--no-dev --classmap-authoritative` to your `composer install` command. This will reduce build size and improve autoloading speed.

README.md

@@ -1,13 +1,24 @@
 <p align="center">
-	<a href="https://pmmp.io"><img src="http://cdn.pocketmine.net/img/PocketMine-MP-h.png"></img></a><br>
+	<a href="https://pmmp.io">
+		<!--[if IE]>
+			<img src="https://github.com/pmmp/PocketMine-MP/blob/stable/.github/readme/pocketmine.png" alt="The PocketMine-MP logo" title="PocketMine" loading="eager" />
+		<![endif]-->
+		<picture>
+			<source srcset="https://github.com/pmmp/PocketMine-MP/raw/stable/.github/readme/pocketmine-dark.png" media="(prefers-color-scheme: dark)">
+			<img src="https://github.com/pmmp/PocketMine-MP/raw/stable/.github/readme/pocketmine.png" loading="eager" />
+		</picture>
+	</a><br>
 	<b>A highly customisable, open source server software for Minecraft: Bedrock Edition written in PHP</b>
 </p>
 
 <p align="center">
-	<img src="https://github.com/pmmp/PocketMine-MP/workflows/CI/badge.svg" alt="CI" />
-	<a href="https://github.com/pmmp/PocketMine-MP/releases"><img src="https://img.shields.io/github/v/tag/pmmp/PocketMine-MP?label=release&logo=github" alt="GitHub tag (latest semver)" /></a>
+	<a href="https://github.com/pmmp/PocketMine-MP/actions/workflows/main.yml"><img src="https://github.com/pmmp/PocketMine-MP/workflows/CI/badge.svg" alt="CI" /></a>
+	<a href="https://github.com/pmmp/PocketMine-MP/releases/latest"><img alt="GitHub release (latest SemVer)" src="https://img.shields.io/github/v/release/pmmp/PocketMine-MP?label=release&sort=semver"></a>
 	<a href="https://hub.docker.com/r/pmmp/pocketmine-mp"><img src="https://img.shields.io/docker/v/pmmp/pocketmine-mp?logo=docker&label=image" alt="Docker image version (latest semver)" /></a>
 	<a href="https://discord.gg/bmSAZBG"><img src="https://img.shields.io/discord/373199722573201408?label=discord&color=7289DA&logo=discord" alt="Discord" /></a>
+	<br>
+	<a href="https://github.com/pmmp/PocketMine-MP/releases"><img alt="GitHub all releases" src="https://img.shields.io/github/downloads/pmmp/PocketMine-MP/total?label=downloads%40total"></a>
+	<a href="https://github.com/pmmp/PocketMine-MP/releases/latest"><img alt="GitHub release (latest by SemVer)" src="https://img.shields.io/github/downloads/pmmp/PocketMine-MP/latest/total?sort=semver"></a>
 </p>
 
 ## Getting started
@@ -24,7 +35,8 @@
 ## For developers
  * [Building and running from source](BUILDING.md)
  * [Developer documentation](https://devdoc.pmmp.io) - General documentation for PocketMine-MP plugin developers
- * [Latest API documentation](https://jenkins.pmmp.io/job/PocketMine-MP-doc/doxygen/) - Doxygen documentation generated from development
+ * [Latest release API documentation](https://apidoc.pmmp.io) - Doxygen API documentation generated for each release
+ * [Latest bleeding-edge API documentation](https://apidoc-dev.pmmp.io) - Doxygen API documentation generated weekly from `next-major` branch
  * [DevTools](https://github.com/pmmp/DevTools/) - Development tools plugin for creating plugins
  * [ExamplePlugin](https://github.com/pmmp/ExamplePlugin/) - Example plugin demonstrating some basic API features
  * [Contributing Guidelines](CONTRIBUTING.md)

build/generate-build-info-json.php

@@ -23,15 +23,15 @@ declare(strict_types=1);
 
 require dirname(__DIR__) . '/vendor/autoload.php';
 
-if(count($argv) !== 4){
-	fwrite(STDERR, "required args: <git hash> <tag name> <github repo (owner/name)>");
+if(count($argv) !== 5){
+	fwrite(STDERR, "required args: <git hash> <tag name> <github repo (owner/name)> <build number>");
 	exit(1);
 }
 
 echo json_encode([
 	"php_version" => sprintf("%d.%d", PHP_MAJOR_VERSION, PHP_MINOR_VERSION),
 	"base_version" => \pocketmine\VersionInfo::BASE_VERSION,
-	"build" => \pocketmine\VersionInfo::BUILD_NUMBER,
+	"build" => (int) $argv[4],
 	"is_dev" => \pocketmine\VersionInfo::IS_DEVELOPMENT_BUILD,
 	"channel" => \pocketmine\VersionInfo::BUILD_CHANNEL,
 	"git_commit" => $argv[1],
@@ -40,4 +40,4 @@ echo json_encode([
 	"details_url" => "https://github.com/$argv[3]/releases/tag/$argv[2]",
 	"download_url" => "https://github.com/$argv[3]/releases/download/$argv[2]/PocketMine-MP.phar",
 	"source_url" => "https://github.com/$argv[3]/tree/$argv[2]",
-], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES) . "\n";
+], JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR) . "\n";

build/generate-known-translation-apis.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\build\generate_known_translation_apis;
 
 use pocketmine\lang\Translatable;
+use pocketmine\utils\Utils;
 use Webmozart\PathUtil\Path;
 use function array_map;
 use function count;
@@ -40,6 +41,7 @@ use function preg_match_all;
 use function str_replace;
 use function strtoupper;
 use const INI_SCANNER_RAW;
+use const SORT_NUMERIC;
 use const SORT_STRING;
 use const STDERR;
 
@@ -94,13 +96,15 @@ function generate_known_translation_keys(array $languageDefinitions) : void{
 /**
  * This class contains constants for all the translations known to PocketMine-MP as per the used version of pmmp/Language.
  * This class is generated automatically, do NOT modify it by hand.
+ *
+ * @internal
  */
 final class KnownTranslationKeys{
 
 HEADER;
 
 	ksort($languageDefinitions, SORT_STRING);
-	foreach($languageDefinitions as $k => $_){
+	foreach(Utils::stringifyKeys($languageDefinitions) as $k => $_){
 		echo "\tpublic const ";
 		echo constantify($k);
 		echo " = \"" . $k . "\";\n";
@@ -126,6 +130,8 @@ function generate_known_translation_factory(array $languageDefinitions) : void{
  * This class contains factory methods for all the translations known to PocketMine-MP as per the used version of
  * pmmp/Language.
  * This class is generated automatically, do NOT modify it by hand.
+ *
+ * @internal
  */
 final class KnownTranslationFactory{
 
@@ -135,17 +141,22 @@ HEADER;
 	$parameterRegex = '/{%(.+?)}/';
 
 	$translationContainerClass = (new \ReflectionClass(Translatable::class))->getShortName();
-	foreach($languageDefinitions as $key => $value){
+	foreach(Utils::stringifyKeys($languageDefinitions) as $key => $value){
 		$parameters = [];
+		$allParametersPositional = true;
 		if(preg_match_all($parameterRegex, $value, $matches) > 0){
 			foreach($matches[1] as $parameterName){
 				if(is_numeric($parameterName)){
 					$parameters[$parameterName] = "param$parameterName";
 				}else{
 					$parameters[$parameterName] = $parameterName;
+					$allParametersPositional = false;
 				}
 			}
 		}
+		if($allParametersPositional){
+			ksort($parameters, SORT_NUMERIC);
+		}
 		echo "\tpublic static function " .
 			functionify($key) .
 			"(" . implode(", ", array_map(fn(string $paramName) => "$translationContainerClass|string \$$paramName", $parameters)) . ") : $translationContainerClass{\n";

build/generate-registry-annotations.php

@@ -58,7 +58,7 @@ function generateMethodAnnotations(string $namespaceName, array $members) : stri
 	$memberLines = [];
 	foreach($members as $name => $member){
 		$reflect = new \ReflectionClass($member);
-		while($reflect !== false and $reflect->isAnonymous()){
+		while($reflect !== false && $reflect->isAnonymous()){
 			$reflect = $reflect->getParentClass();
 		}
 		if($reflect === false){
@@ -82,6 +82,7 @@ function generateMethodAnnotations(string $namespaceName, array $members) : stri
 
 require dirname(__DIR__) . '/vendor/autoload.php';
 
+/** @var string $file */
 foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1], \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME)) as $file){
 	if(substr($file, -4) !== ".php"){
 		continue;
@@ -91,7 +92,7 @@ foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1],
 		throw new \RuntimeException("Failed to get contents of $file");
 	}
 
-	if(preg_match("/^namespace (.+);$/m", $contents, $matches) !== 1 || preg_match('/^((final|abstract)\s+)?class /m', $contents) !== 1){
+	if(preg_match("/(*ANYCRLF)^namespace (.+);$/m", $contents, $matches) !== 1 || preg_match('/(*ANYCRLF)^((final|abstract)\s+)?class /m', $contents) !== 1){
 		continue;
 	}
 	$shortClassName = basename($file, ".php");
@@ -101,7 +102,7 @@ foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1],
 	}
 	$reflect = new \ReflectionClass($className);
 	$docComment = $reflect->getDocComment();
-	if($docComment === false || preg_match("/^\s*\*\s*@generate-registry-docblock$/m", $docComment) !== 1){
+	if($docComment === false || preg_match("/(*ANYCRLF)^\s*\*\s*@generate-registry-docblock$/m", $docComment) !== 1){
 		continue;
 	}
 	echo "Found registry in $file\n";
@@ -116,4 +117,3 @@ foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1],
 		echo "No changes made to file $file\n";
 	}
 }
-

build/make-release.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\build\make_release;
 
+use pocketmine\utils\Utils;
 use pocketmine\utils\VersionString;
 use pocketmine\VersionInfo;
 use function array_keys;
@@ -49,7 +50,7 @@ use const STR_PAD_LEFT;
 require_once dirname(__DIR__) . '/vendor/autoload.php';
 
 function replaceVersion(string $versionInfoPath, string $newVersion, bool $isDev, string $channel) : void{
-	$versionInfo = file_get_contents($versionInfoPath);
+	$versionInfo = Utils::assumeNotFalse(file_get_contents($versionInfoPath), $versionInfoPath . " should always exist");
 	$versionInfo = preg_replace(
 		$pattern = '/^([\t ]*public )?const BASE_VERSION = "(\d+)\.(\d+)\.(\d+)(?:-(.*))?";$/m',
 		'$1const BASE_VERSION = "' . $newVersion . '";',
@@ -74,9 +75,17 @@ const ACCEPTED_OPTS = [
 	"channel" => "Release channel to post this build into"
 ];
 
+function systemWrapper(string $command, string $errorMessage) : void{
+	system($command, $result);
+	if($result !== 0){
+		echo "error: $errorMessage; aborting\n";
+		exit(1);
+	}
+}
+
 function main() : void{
 	$filteredOpts = [];
-	foreach(getopt("", ["current:", "next:", "channel:", "help"]) as $optName => $optValue){
+	foreach(Utils::stringifyKeys(getopt("", ["current:", "next:", "channel:", "help"])) as $optName => $optValue){
 		if($optName === "help"){
 			fwrite(STDOUT, "Options:\n");
 
@@ -114,7 +123,7 @@ function main() : void{
 	echo "$currentVer will be published on release channel \"$channel\".\n";
 	echo "please add appropriate notes to the changelog and press enter...";
 	fgets(STDIN);
-	system('git add "' . dirname(__DIR__) . '/changelogs"');
+	systemWrapper('git add "' . dirname(__DIR__) . '/changelogs"', "failed to stage changelog changes");
 	system('git diff --cached --quiet "' . dirname(__DIR__) . '/changelogs"', $result);
 	if($result === 0){
 		echo "error: no changelog changes detected; aborting\n";
@@ -122,14 +131,15 @@ function main() : void{
 	}
 	$versionInfoPath = dirname(__DIR__) . '/src/VersionInfo.php';
 	replaceVersion($versionInfoPath, $currentVer->getBaseVersion(), false, $channel);
-	system('git commit -m "Release ' . $currentVer->getBaseVersion() . '" --include "' . $versionInfoPath . '"');
-	system('git tag ' . $currentVer->getBaseVersion());
+	systemWrapper('git commit -m "Release ' . $currentVer->getBaseVersion() . '" --include "' . $versionInfoPath . '"', "failed to create release commit");
+	systemWrapper('git tag ' . $currentVer->getBaseVersion(), "failed to create release tag");
+
 	replaceVersion($versionInfoPath, $nextVer->getBaseVersion(), true, $channel);
-	system('git add "' . $versionInfoPath . '"');
-	system('git commit -m "' . $nextVer->getBaseVersion() . ' is next" --include "' . $versionInfoPath . '"');
+	systemWrapper('git add "' . $versionInfoPath . '"', "failed to stage changes for post-release commit");
+	systemWrapper('git commit -m "' . $nextVer->getBaseVersion() . ' is next" --include "' . $versionInfoPath . '"', "failed to create post-release commit");
 	echo "pushing changes in 5 seconds\n";
 	sleep(5);
-	system('git push origin HEAD ' . $currentVer->getBaseVersion());
+	systemWrapper('git push origin HEAD ' . $currentVer->getBaseVersion(), "failed to push changes to remote");
 }
 
 main();

build/server-phar.php

@@ -134,13 +134,18 @@ function main() : void{
 		exit(1);
 	}
 
-	$opts = getopt("", ["out:", "git:"]);
+	$opts = getopt("", ["out:", "git:", "build:"]);
 	if(isset($opts["git"])){
 		$gitHash = $opts["git"];
 	}else{
 		$gitHash = Git::getRepositoryStatePretty(dirname(__DIR__));
 		echo "Git hash detected as $gitHash" . PHP_EOL;
 	}
+	if(isset($opts["build"])){
+		$build = (int) $opts["build"];
+	}else{
+		$build = 0;
+	}
 	foreach(buildPhar(
 		$opts["out"] ?? getcwd() . DIRECTORY_SEPARATOR . "PocketMine-MP.phar",
 		dirname(__DIR__) . DIRECTORY_SEPARATOR,
@@ -150,7 +155,8 @@ function main() : void{
 			'vendor'
 		],
 		[
-			'git' => $gitHash
+			'git' => $gitHash,
+			'build' => $build
 		],
 		<<<'STUB'
 <?php

changelogs/3.25.md

@@ -21,3 +21,18 @@ Plugin developers should **only** update their required API to this version if y
 - Fixed crash in `Player->showPlayer()` when the target is not in the same world.
 - `Human->setLifetimeTotalXp()` now limits the maximum value to 2^31.
 - Fixed players, who died in hardcore mode and were unbanned, getting re-banned on next server join.
+
+# 3.25.3
+- Fixed crash when players try to pickup XP while already having max XP.
+- Added a sanity check to `Human->setCurrentTotalXp()` to try and catch an elusive bug that's been appearing in the wild - please get in touch if you know how to reproduce it!
+
+# 3.25.4
+- Fixed a long-standing issue with `Player->removeWindow()` breaking inventory UIs on the client.
+
+# 3.25.5
+- Protocol: Fixed incorrect encoding in `StructureSettings`
+- Fixed reading tags from non-docblock comments in script plugins.
+- Build number is now defined in phar metadata instead of being patched into the source code directly.
+
+# 3.25.6
+- Fixed borked build number in release build of 3.25.5.

changelogs/3.26.md

@@ -0,0 +1,32 @@
+**For Minecraft: Bedrock Edition 1.18.0**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 3.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 3.26.0
+- Added support for Minecraft: Bedrock Edition 1.18.0.
+- Removed compatibility with earlier versions.
+
+# 3.26.1
+- Fixed a bug in chunk sending that caused double chests to not be paired, signs to be blank, and various other issues.
+
+# 3.26.2
+- Improved error messages shown by `start.cmd`, `start.sh` and `start.ps1` when the PHP binary was not found.
+- The value of PHPRC is now shown when erroring out due to unsatisfied PHP requirements.
+- Removed restriction on the range of valid channels for `auto-updater.channel` in `pocketmine.yml`.
+
+# 3.26.3
+- `PlayerExperienceChangeEvent->setNewProgress()` now performs range checks. This fixes the root of a very old and confusing crash bug which took several years to identify the cause of.
+  - Note that the defective plugin(s) which caused this problem will still cause a server crash, but the plugin responsible will now get blamed correctly.
+
+# 3.26.4
+- Fixed skins appearing black when using RTX resource packs.
+- Fixed chunks containing furnaces in old worlds (pre-2017) being discarded as corrupted.
+  - This was caused by a strict corruption check detecting bad data created by a bug in PocketMine-MP that was fixed in 2017.
+
+# 3.26.5
+- Fixed several denial-of-service attack vectors related to writable book text length and encoding.
+- Fixed several denial-of-service attack vectors related to skin data field lengths.

changelogs/3.27.md

@@ -0,0 +1,15 @@
+**For Minecraft: Bedrock Edition 1.18.0**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 3.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 3.27.0
+- Introduced support for protocol encryption.
+  - Encryption is enabled by default.
+  - Fixes login replay attacks.
+  - This may cause some performance degradation.
+  - Encryption can be disabled by setting `network.enable-encryption` to `false` in `pocketmine.yml`. DO NOT do this unless you understand the risks involved.
+- An obsoletion notice has been added to the console during server startup.

changelogs/4.1-beta.md

@@ -0,0 +1,166 @@
+**For Minecraft: Bedrock Edition 1.18.0**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.1.0-BETA1
+Released 22nd January 2022.
+
+## General
+- Game mode names (e.g. `survival`, `creative`) may now be used for the `gamemode` property in `server.properties`.
+- Increased default maximum render distance to 16 chunks. Players with a render distance smaller than this will notice no difference.
+- The setup wizard now prompts for a maximum render distance value.
+- The setup wizard now prompts for an IPv6 port selection. Previously it would always use 19133.
+- `chunk-ticking.disable-block-ticking` now accepts block names like those used in the `/give` command.
+- The `/clear` command now behaves more like vanilla:
+  - The order of inventories is now the same as Bedrock.
+  - The cursor and offhand inventories are now cleared if necessary.
+
+## Technical
+- `PlayerAuthInputPacket` is now used instead of `MovePlayerPacket` for processing movements. This improves position and rotation accuracy.
+- `&&` and `||` are now always used instead of `and` and `or`.
+- New version of `pocketmine/errorhandler` is used by this version, adding support for `ErrorToExceptionHandler::trap()`. This enables reliably capturing `E_WARNING` and `E_NOTICE` from functions such as `yaml_parse()` and friends.
+- New dependency versions are required by this version:
+  - `pocketmine/bedrock-protocol` has been updated from 7.1.0 to [7.3.0](https://github.com/pmmp/BedrockProtocol/releases/tag/7.3.0%2Bbedrock-1.18.0).
+  - `pocketmine/errorhandler` has been updated from 0.3.0 to [0.6.0](https://github.com/pmmp/ErrorHandler/releases/tag/0.6.0).
+
+## API
+### Block
+- The following classes have been added:
+  - `Lectern`
+  - `Pumpkin`
+- The following public API methods have been added:
+  - `Block->getTypeId() : int` - returns an integer which uniquely identifies the block type, ignoring things like facing, colour etc.
+  - `VanillaBlocks::LECTERN()`
+
+### Entity
+- The following classes have been added:
+  - `animation\ItemEntityStackSizeChangeAnimation`
+- The following public API methods have been added:
+  - `object\ItemEntity->isMergeable(object\ItemEntity $other) : bool`
+  - `object\ItemEntity->setStackSize(int $size) : void`
+  - `object\ItemEntity->tryMergeInto(object\ItemEntity $other) : bool`
+  - `ExperienceManager->canAttractXpOrbs() : bool`
+  - `ExperienceManager->setCanAttractXpOrbs(bool $v = true) : void`
+  - `Entity->getSize() : EntitySizeInfo`
+  - `Living->isGliding() : bool`
+  - `Living->isSwimming() : bool`
+  - `Living->setGliding(bool $value = true) : void`
+  - `Living->setSwimming(bool $value = true) : void`
+- The following protected API methods have been added:
+  - `Entity->getBlocksIntersected(float $inset) : \Generator<int, Block, void, void>`
+
+### Event
+- `BlockSpreadEvent` is now called when fire spreads to the positions of blocks it burns away.
+- `BlockFormEvent` is now called when concrete powder turns into concrete due to contact with water.
+- The following classes have been added:
+  - `BlockMeltEvent` - called when ice or snow melts
+  - `ChestPairEvent` - called when two chests try to form a pair
+  - `PlayerToggleGlideEvent` - called when a player starts or stops gliding
+  - `PlayerToggleSwimEvent` - called when a player starts or stops swimming
+
+### Item
+- The following public API methods have been added:
+  - `SplashPotion->getType() : PotionType`
+  - `VanillaItems::AIR()`
+- The following API methods have been deprecated:
+  - `ItemFactory::air()` - use `VanillaItems::AIR()` instead
+
+### Player
+- The following public API methods have been added:
+  - `Player->hasBlockCollision() : bool`
+  - `Player->setHasBlockCollision(bool $value)` - allows controlling spectator-like no-clip behaviour without changing game mode
+  - `Player->toggleSwim(bool $swim) : bool` - called by the network system when the client tries to start/stop swimming
+  - `Player->toggleGlide(bool $glide) : bool` - called by the network system when the client tries to start/stop gliding
+
+### Server
+- The following public API constants have been added:
+  - `Server::DEFAULT_SERVER_NAME`
+  - `Server::DEFAULT_MAX_PLAYERS`
+  - `Server::DEFAULT_PORT_IPV4`
+  - `Server::DEFAULT_PORT_IPV6`
+  - `Server::DEFAULT_MAX_VIEW_DISTANCE`
+
+### Utils
+- Config parsing errors are now always represented by `ConfigLoadException` and include the path to the file in the message.
+- Added `TextFormat::MINECOIN_GOLD`, and support for it to the various `TextFormat` methods.
+- The following public API methods have been added:
+  - `Utils::assumeNotFalse()` - static analysis crutch to silence PHPStan errors without using `ignoreErrors` or `@phpstan-ignore-line`, which are both too coarse.
+- The following public API properties have been added:
+  - `Terminal::$COLOR_MINECOIN_GOLD`
+- The following classes have been added:
+  - `ConfigLoadException`
+- Fixed `Random->nextSignedInt()` to actually return a signed int. Previously it would return any integer value between 0 and 4,294,957,295.
+- Fixed `Random->nextSignedFloat()` to return a float between `-1.0` and `1.0`. Previously it would return any value between `0.0` and `2.0`.
+- `VersionString->getNumber()` output is now structured differently to fix overflow issues caused by the old format.
+
+### World
+- The following classes have been added:
+  - `sound\ItemUseOnBlockSound`
+  - `sound\LecternPlaceBookSound`
+
+## Gameplay
+### Blocks
+- Fire now spreads.
+- Implemented lectern blocks.
+- Added missing sounds for hoeing grass and dirt.
+- Added missing sounds for using a shovel on grass to create grass path.
+- Pumpkins can now be carved using shears.
+
+### Items
+- Dropped items of the same type now merge with each other.
+
+### Misc
+- Implemented player swimming.
+
+# 4.1.0-BETA2
+Released 27th January 2022.
+
+## API
+### Block
+- The following API methods have been added:
+  - `utils\BrewingStandSlot->getSlotNumber() : int`
+  - `utils\FurnaceType->getCookSound() : Sound`
+- The following API constants have been added:
+  - `tile\BrewingStand::BREW_TIME_TICKS`
+
+### Crafting
+- The following API methods have been added:
+  - `CraftingManager->getPotionContainerChangeRecipes() : array<int, array<string, PotionContainerChangeRecipe>>`
+  - `CraftingManager->getPotionTypeRecipes() : array<string, array<string, PotionTypeRecipe>>`
+  - `CraftingManager->registerPotionContainerChangeRecipe(PotionContainerChangeRecipe $recipe) : void`
+  - `CraftingManager->registerPotionTypeRecipe(PotionTypeRecipe $recipe) : void`
+- The following classes have been added:
+  - `BrewingRecipe`
+  - `PotionContainerChangeRecipe`
+  - `PotionTypeRecipe`
+
+### Event
+- The following classes have been added:
+  - `BrewItemEvent` - called when a brewing stand finishes brewing potions; this is called up to 3 times (once for each brewing slot, as needed)
+  - `BrewingFuelUseEvent` - called when a brewing stand consumes blaze powder
+  - `PlayerViewDistanceChangeEvent` - called whenever a player alters their render distance or requests one for the first time when connecting
+
+### World
+#### Sound
+- The following classes have been added:
+  - `BlastFurnaceSound` - the sound made by a blast furnace during smelting
+  - `FurnaceSound` - the sound made by a regular furnace during cooking or smelting
+  - `PotionFinishBrewingSound` - the sound made by a brewing stand when a potion finishes being brewed
+  - `SmokerSound` - the sound made by a smoker during cooking
+
+## Gameplay
+### Blocks
+- Brewing stands can now be used for brewing potions.
+- The visual appearance of a brewing stand now updates correctly when the contents of its inventory changes (adding/removing potions).
+- Added missing sounds for furnace, blast furnace and smoker.
+- Fixed ender chest not dropping itself when mined with a Silk Touch pickaxe.
+- Cobwebs now drop themselves when mined using shears.
+- The correct amount of fall damage is now taken when falling from a height onto hay bales.
+- Fixed block updating bug introduced by beta1 which caused crops and other plants to never grow.
+
+### Misc
+- Added a workaround for client hitbox size bug after swimming which caused the player to be able to fit into one-block-tall gaps.

changelogs/4.1.md

@@ -0,0 +1,142 @@
+**For Minecraft: Bedrock Edition 1.18.0**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.1.0
+Released 7th February 2022.
+
+## General
+- Game mode names (e.g. `survival`, `creative`) may now be used for the `gamemode` property in `server.properties`.
+- Increased default maximum render distance to 16 chunks. Players with a render distance smaller than this will notice no difference.
+- The setup wizard now prompts for a maximum render distance value.
+- The setup wizard now prompts for an IPv6 port selection. Previously it would always use 19133.
+- `chunk-ticking.disable-block-ticking` now accepts block names like those used in the `/give` command.
+- The `/clear` command now behaves more like vanilla:
+  - The order of inventories is now the same as Bedrock.
+  - The cursor and offhand inventories are now cleared if necessary.
+
+## Technical
+- `PlayerAuthInputPacket` is now used instead of `MovePlayerPacket` for processing movements. This improves position and rotation accuracy.
+- `&&` and `||` are now always used instead of `and` and `or`.
+- New version of `pocketmine/errorhandler` is used by this version, adding support for `ErrorToExceptionHandler::trap()`. This enables reliably capturing `E_WARNING` and `E_NOTICE` from functions such as `yaml_parse()` and friends.
+- New dependency versions are required by this version:
+  - `pocketmine/bedrock-protocol` has been updated from 7.1.0 to [7.3.0](https://github.com/pmmp/BedrockProtocol/releases/tag/7.3.0%2Bbedrock-1.18.0).
+  - `pocketmine/errorhandler` has been updated from 0.3.0 to [0.6.0](https://github.com/pmmp/ErrorHandler/releases/tag/0.6.0).
+
+## API
+### Block
+- The following classes have been added:
+  - `Lectern`
+  - `Pumpkin`
+- The following public API methods have been added:
+  - `Block->getTypeId() : int` - returns an integer which uniquely identifies the block type, ignoring things like facing, colour etc.
+  - `VanillaBlocks::LECTERN()`
+  - `utils\BrewingStandSlot->getSlotNumber() : int`
+  - `utils\FurnaceType->getCookSound() : Sound`
+- The following API constants have been added:
+  - `tile\BrewingStand::BREW_TIME_TICKS`
+
+### Crafting
+- The following API methods have been added:
+  - `CraftingManager->getPotionContainerChangeRecipes() : array<int, array<string, PotionContainerChangeRecipe>>`
+  - `CraftingManager->getPotionTypeRecipes() : array<string, array<string, PotionTypeRecipe>>`
+  - `CraftingManager->registerPotionContainerChangeRecipe(PotionContainerChangeRecipe $recipe) : void`
+  - `CraftingManager->registerPotionTypeRecipe(PotionTypeRecipe $recipe) : void`
+- The following classes have been added:
+  - `BrewingRecipe`
+  - `PotionContainerChangeRecipe`
+  - `PotionTypeRecipe`
+
+### Entity
+- The following classes have been added:
+  - `animation\ItemEntityStackSizeChangeAnimation`
+- The following public API methods have been added:
+  - `object\ItemEntity->isMergeable(object\ItemEntity $other) : bool`
+  - `object\ItemEntity->setStackSize(int $size) : void`
+  - `object\ItemEntity->tryMergeInto(object\ItemEntity $other) : bool`
+  - `ExperienceManager->canAttractXpOrbs() : bool`
+  - `ExperienceManager->setCanAttractXpOrbs(bool $v = true) : void`
+  - `Entity->getSize() : EntitySizeInfo`
+  - `Living->isGliding() : bool`
+  - `Living->isSwimming() : bool`
+  - `Living->setGliding(bool $value = true) : void`
+  - `Living->setSwimming(bool $value = true) : void`
+- The following protected API methods have been added:
+  - `Entity->getBlocksIntersected(float $inset) : \Generator<int, Block, void, void>`
+
+### Event
+- `BlockSpreadEvent` is now called when fire spreads to the positions of blocks it burns away.
+- `BlockFormEvent` is now called when concrete powder turns into concrete due to contact with water.
+- The following classes have been added:
+  - `BlockMeltEvent` - called when ice or snow melts
+  - `BrewItemEvent` - called when a brewing stand finishes brewing potions; this is called up to 3 times (once for each brewing slot, as needed)
+  - `BrewingFuelUseEvent` - called when a brewing stand consumes blaze powder
+  - `ChestPairEvent` - called when two chests try to form a pair
+  - `PlayerToggleGlideEvent` - called when a player starts or stops gliding
+  - `PlayerToggleSwimEvent` - called when a player starts or stops swimming
+  - `PlayerViewDistanceChangeEvent` - called whenever a player alters their render distance or requests one for the first time when connecting
+
+### Item
+- The following public API methods have been added:
+  - `SplashPotion->getType() : PotionType`
+  - `VanillaItems::AIR()`
+- The following API methods have been deprecated:
+  - `ItemFactory::air()` - use `VanillaItems::AIR()` instead
+
+### Player
+- The following public API methods have been added:
+  - `Player->hasBlockCollision() : bool`
+  - `Player->setHasBlockCollision(bool $value)` - allows controlling spectator-like no-clip behaviour without changing game mode
+  - `Player->toggleSwim(bool $swim) : bool` - called by the network system when the client tries to start/stop swimming
+  - `Player->toggleGlide(bool $glide) : bool` - called by the network system when the client tries to start/stop gliding
+
+### Server
+- The following public API constants have been added:
+  - `Server::DEFAULT_SERVER_NAME`
+  - `Server::DEFAULT_MAX_PLAYERS`
+  - `Server::DEFAULT_PORT_IPV4`
+  - `Server::DEFAULT_PORT_IPV6`
+  - `Server::DEFAULT_MAX_VIEW_DISTANCE`
+
+### Utils
+- Config parsing errors are now always represented by `ConfigLoadException` and include the path to the file in the message.
+- Added `TextFormat::MINECOIN_GOLD`, and support for it to the various `TextFormat` methods.
+- The following public API methods have been added:
+  - `Utils::assumeNotFalse()` - static analysis crutch to silence PHPStan errors without using `ignoreErrors` or `@phpstan-ignore-line`, which are both too coarse.
+- The following public API properties have been added:
+  - `Terminal::$COLOR_MINECOIN_GOLD`
+- The following classes have been added:
+  - `ConfigLoadException`
+- Fixed `Random->nextSignedInt()` to actually return a signed int. Previously it would return any integer value between 0 and 4,294,957,295.
+- Fixed `Random->nextSignedFloat()` to return a float between `-1.0` and `1.0`. Previously it would return any value between `0.0` and `2.0`.
+- `VersionString->getNumber()` output is now structured differently to fix overflow issues caused by the old format.
+
+### World
+- The following classes have been added:
+  - `sound\BlastFurnaceSound` - the sound made by a blast furnace during smelting
+  - `sound\FurnaceSound` - the sound made by a regular furnace during cooking or smelting
+  - `sound\ItemUseOnBlockSound`
+  - `sound\LecternPlaceBookSound`
+  - `sound\PotionFinishBrewingSound` - the sound made by a brewing stand when a potion finishes being brewed
+  - `sound\SmokerSound` - the sound made by a smoker during cooking
+
+## Gameplay
+### Blocks
+- Fire now spreads.
+- Implemented lectern blocks.
+- Added missing sounds for hoeing grass and dirt.
+- Added missing sounds for using a shovel on grass to create grass path.
+- Pumpkins can now be carved using shears.
+- Brewing stands can now be used for brewing potions.
+- The visual appearance of a brewing stand now updates correctly when the contents of its inventory changes (adding/removing potions).
+- Added missing sounds for furnace, blast furnace and smoker.
+- Fixed ender chest not dropping itself when mined with a Silk Touch pickaxe.
+- Cobwebs now drop themselves when mined using shears.
+- The correct amount of fall damage is now taken when falling from a height onto hay bales.
+
+### Items
+- Dropped items of the same type now merge with each other.

changelogs/4.2.md

@@ -0,0 +1,121 @@
+**For Minecraft: Bedrock Edition 1.18.10**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.2.0
+- Added support for Minecraft: Bedrock Edition 1.18.10.
+
+# 4.2.1
+Released 19th February 2022.
+
+## General
+- Improved performance of `Item::nbtSerialize()` - this will improve performance during world saves.
+- Added more missing changes to the 4.0.0 changelog.
+
+## Fixes
+- Fixed multiple players being able to sleep in the same bed.
+- Fixed hitbox not resetting properly after swimming or gliding.
+
+# 4.2.2
+Released 2nd March 2022.
+
+## Fixes
+- Fixed crash in `/dumpmemory` due to usage of non-printable string keys in `CraftingManager`. Array contents in memory dumps are now rendered as prettified key-value pairs.
+- Fixed output directory for `/dumpmemory`.
+- `PlayerInventory->isHotbarSlot()` now correctly returns `false` when given `9`.
+- Fixed ghost items left in the inventory when dropping tools while mining.
+
+# 4.2.3
+Released 9th March 2022.
+
+## Technical
+- Now analysed using PHPStan 1.4.8.
+- Now using `pocketmine/bedrock-protocol` [`8.0.1`](https://github.com/pmmp/BedrockProtocol/releases/tag/8.0.1%2Bbedrock-1.18.10).
+
+## Fixes
+### Core
+- Fixed a memory leak and other bugs related to plugins disabling themselves during `onEnable()`.
+
+### Gameplay
+- Sweet berry bushes now absorb fall damage.
+- Fixed mycelium spreading onto coarse dirt.
+- Fixed blocks placed during `Block->onIncinerate()` getting overwritten.
+- Fixed shulker boxes being unopenable when underwater.
+- Fixed invisible fire on top of transparent non-flammable blocks.
+
+### API
+- Various APIs accepting `Vector3`, `Position` or `Location` no longer accept objects containing `INF` or `NaN` in any component. Previously, this was allowed, but would cause lots of obscure crashes later on.
+- `Entity->setRotation()` no longer accepts `INF` or `NaN`.
+- Fixed missing bounds check for `ItemFrame->setItemDropChance()`.
+
+# 4.2.4
+Released 18th March 2022.
+
+## Fixes
+- Fixed a crash when handling out-of-bounds meta values on the network.
+
+# 4.2.5
+Released 28th March 2022.
+
+## General
+- The layout of the human-readable part of crashdumps has been changed in an effort to improve the useful information density. It is hoped that this change will cause more useful information to be provided when people paste crash traces on Discord, since all the most important information is now at the top of the file.
+  - Version, git hash, PHP version and OS have been moved to the top of the crashdump.
+  - Backtrace has been moved above code sample.
+- Docker images are now built by GitHub Actions (first live test).
+
+## Technical
+- The methods of `Inventory` and `BaseInventory` have been rearranged to improve coherency.
+
+## Fixes
+### API
+- Enum members of enums created using `EnumTrait` are now able to have single-character names.
+- Registry members of registries created using `RegistryTrait` or `CloningRegistryTrait` now have their names checked for invalid characters.
+- `Entity::__construct()` now uses a guard variable to prevent it from being called multiple times unintentionally. This is necessary because `Entity::__construct()` has side effects.
+- Fixed `PlayerItemHeldEvent` not being called when the content of the held slot was changed (e.g. replacing the held item via inventory menu).
+
+### Gameplay
+- Reduced the appearance of ghost items in unsupported gameplay scenarios using client prediction information. This fixes, for example, the appearance of ghost items when right-clicking on a filled flower pot.
+
+# 4.2.6
+Released 1st April 2022.
+
+## Fixes
+- Fixed buffer length underflow crash in `LoginPacket` handling.
+
+# 4.2.7
+Released 15th April 2022.
+
+## General
+- Added lots more documentation (in comments) about the `aliases` section in `pocketmine.yml`. You can read about this feature in the `aliases` section of the [updated `pocketmine.yml` template](/resources/pocketmine.yml).
+- Improved wording of documentation of `PlayerPreLoginEvent`.
+
+## Fixes
+- Fixed core server crash when a plugin causes another plugin to be disabled during a scheduled task.
+- Fixed core server crash when loading a plugin with an abstract main class.
+- Fixed ghost items in many interaction situations (most notably, using projectiles while looking at an entity or block).
+- Implemented a workaround for a client teleport bug which led to player positions not updating properly when using ender pearls.
+- Fixed buggy movement when teleporting the player during `PlayerToggleSneakEvent`, `PlayerToggleSprintEvent`, `PlayerToggleSwimEvent` and `PlayerToggleGlideEvent`.
+
+# 4.2.8
+Released 17th April 2022.
+
+## Fixes
+- Fixed a memory leak in RakLib which could result in a server crash when players stay online for a long time.
+- Fixed server crash when attempting to load a corrupted empty resource pack.
+- Fixed users with the same name with differerently cased letters being able to duplicate items (userdata is matched by case-insensitive name).
+
+# 4.2.9
+Released 19th April 2022.
+
+## Fixes
+- Fixed several potential crashes when deserializing item NBT (due to insufficient validation of input data).
+
+# 4.2.10
+Released 20th April 2022.
+
+## Fixes
+- Fixed performance issue when chat messages received from the client contain many newlines. This security vulnerability was disclosed publicly necessitating a priority fix.

changelogs/4.3.md

@@ -0,0 +1,77 @@
+**For Minecraft: Bedrock Edition 1.18.30**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.3.0
+Released 20th April 2022.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.18.30.
+- Removed support for older versions.
+
+# 4.3.1
+Released 23rd April 2022.
+
+## Fixes
+- Updated BedrockProtocol dependency to fix incorrect command argument types.
+- Creative players no longer die in the void.
+
+# 4.3.2
+Released 10th May 2022.
+
+## Fixes
+- Fixed an assertion failure in certain edge cases during world generation.
+- Fixed `Entity::setNameTagVisible()` not immediately showing results to players already online.
+
+## Documentation
+- Added more documentation in the template `pocketmine.yml` for the `aliases` config section.
+- Removed useless doc comment in `PlayerChangeSkinEvent`.
+
+# 4.3.3
+Released 16th May 2022.
+
+## General
+- Improved display of parameters in exception stack trace logs.
+- Exception stack traces now include names for dynamic named arguments (i.e. arguments that don't match any parameter of the function), if any were given.
+  - Note: Named arguments which do match parameters are not shown this way, since PHP reduces them to positional arguments for performance reasons.
+
+## Fixes
+- Fixed server crash when chunks are unloaded during chunk generation callbacks
+- Fixed dead coral fan items placing coral fans in the wrong orientation.
+- Fixed max stack size of boat items.
+
+# 4.3.4
+Released 22nd May 2022.
+
+## Fixes
+- Fixed `difficulty` in `server.properties` having no effect - it's now applied to newly generated worlds.
+  - Note: this setting still doesn't behave the same way as vanilla due to potential disruption to existing servers.
+- Fixed paintings not working in newly generated worlds and some other cases.
+- Fixed inventory window switching breaking the inventory UI in some cases (e.g. pressing E while clicking a chest).
+- Fixed minecart items incorrectly stacking.
+- Fixed incorrect light levels in translucent blocks at the top of the world.
+- Fixed teleporting sleeping players causing broken behaviour on the sleeping player's client.
+- Fixed `EntityExplodeEvent->setYield()` accepting values outside the range 0-100.
+- Fixed `ExplosionPrimeEvent->setForce()` accepting negative values (later resulting in crashes).
+
+## Documentation
+- Updated documentation for the following events:
+  - `CommandEvent`
+  - `EntityDespawnEvent`
+  - `EntityExplodeEvent`
+  - `EntitySpawnEvent`
+  - `ExplosionPrimeEvent`
+  - `InventoryTransactionEvent`
+  - `ItemDespawnEvent`
+  - `ItemSpawnEvent`
+  - `PlayerCommandPreprocessEvent`
+  - `PlayerDropItemEvent`
+  - `PlayerItemHeldEvent`
+  - `PlayerKickEvent`
+  - `PlayerQuitEvent`
+  - `PlayerTransferEvent`
+  - `UpdateNotifyEvent`

changelogs/4.4-beta.md

@@ -0,0 +1,77 @@
+**For Minecraft: Bedrock Edition 1.18.30**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.4.0-BETA1
+Released 25th May 2022.
+
+## General
+- The server will now shut itself down if any of the following errors occur during startup:
+  - Any plugin fails to load or enable (plugins loaded by other plugins post-startup are **not** affected by this change) (**PR [#4951](https://github.com/pmmp/PocketMine-MP/pull/4951)**)
+    - The motivation for this change is to prevent situations where plugins failing to load could result in adverse outcomes, such as a world protection plugin leaving a lobby unprotected from griefing.
+    - If you encounter this problem, remove the offending plugin(s) or prevent it from loading using `plugin_list.yml`.
+    - See **PR [#4951](https://github.com/pmmp/PocketMine-MP/pull/4951)** for more detail on this change.
+  - Any world mentioned in `server.properties` or `pocketmine.yml` fails to load (worlds loaded by plugins are **not** affected by this change)
+  - Any world mentioned in `server.properties` or `pocketmine.yml` fails to generate (e.g. due to invalid generator settings)
+- Enabling the server whitelist while the server is running (e.g. using `/whitelist on`) will now kick any non-whitelisted players currently on the server (**PR [#4774](https://github.com/pmmp/PocketMine-MP/pull/4774)**).
+- Help for commands (`/help <name of command>`) now displays a list of aliases of that command.
+- A CRITICAL log message is now generated if a plugin disables itself when enabling, in case the plugin doesn't emit any error of its own.
+- The `/give` command now shows the alias used to find the given item in the success message, instead of the item ID/meta.
+
+## Fixes
+- Block placement has been fixed in many places where it previously didn't work correctly (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**):
+  - torches on top of slabs, upside-down stairs
+  - torches on the back face of stairs
+  - flower pots on top of fences
+  - the list goes on and on ...
+- Fixed backslash escapes not getting properly removed from commands in some cases.
+- Fixed aliases defined in the `aliases` section of `pocketmine.yml` not being treated as quote-aware.
+
+## Gameplay
+- Plants in flower pots can now be removed by right-clicking on the flower pot.
+- Leaves now have a 2% chance of dropping sticks when destroyed by hand (**PR [#5019](https://github.com/pmmp/PocketMine-MP/pull/5019)**).
+- Food exhaustion now matches Bedrock 1.18.30 (**PR [#5034](https://github.com/pmmp/PocketMine-MP/pull/5034)**).
+- Implemented Stonecutter block (**PR [#4732](https://github.com/pmmp/PocketMine-MP/pull/4732)**).
+
+## API
+### Block
+- Added `Block->getSupportType(Facing) : SupportType` (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**).
+  - This is used to determine the kind of support a block face can provide to a block (e.g. a torch) placed on it.
+- Added `utils\SupportType` enum (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**).
+- `tile\Spawnable->isDirty()` and `tile\Spawnable->setDirty()` are now `@deprecated`.
+
+### Command
+- Added `CommandStringHelper::parseQuoteAware()`. This static method contains the code used by `SimpleCommandMap` used to parse quoted command arguments.
+
+### Entity
+- Added `Human::emote()` (**PR [#4610](https://github.com/pmmp/PocketMine-MP/pull/4610)**)
+
+### Event
+- `PlayerCommandPreprocessEvent` is now `@deprecated`, since its functionality is entirely replaced by other, general-purpose events.
+  - Use `CommandEvent` to intercept commands.
+  - Use `PlayerChatEvent` to intercept chat messages.
+  - To convert a chat message into a command, pass it directly to `Server->dispatchCommand()` with the player as sender.
+- Added `PlayerPostChunkSendEvent` (**PR [#4937](https://github.com/pmmp/PocketMine-MP/pull/4937)**).
+- Added `PlayerDeathEvent->setKeepXp()` (**PR [#4015](https://github.com/pmmp/PocketMine-MP/pull/4015)**).
+- `InventoryCloseEvent` is now called **after** the target window has been removed. This fixes various feedback loops caused by trying to open new windows to a player while there was one still active.
+  - As a side effect, this now means that `Player->getCurrentWindow()` will return `null` during `InventoryCloseEvent`. Use `InventoryCloseEvent->getInventory()` instead.
+
+### Item
+- `StringToItemParser` now recognizes `cod`, `raw_cod` and `cooked_cod` aliases.
+
+### Plugin
+- `DisablePluginException` may now be thrown from `Plugin::onEnable()` to make the server gracefully disable the plugin (without crashing) (**PR [#4780](https://github.com/pmmp/PocketMine-MP/pull/4780)**).
+- `PluginManager->registerEvent()` now returns the `RegisteredListener` created for the handler, to permit unregistering it later.
+
+## Internals
+- Private property declarations now use typed properties (PHP 7.4) and promoted constructor properties (PHP 8.0) wherever possible.
+  - Protected and public properties remain unchanged, since they can't be changed without breaking subclasses.
+- Promoted constructor properties are only used when it's consistently possible to promote most or all properties in a class.
+- Simplified and improved legibility of `FormattedCommandAlias`.
+- Added unit tests for the quote-aware command parser used by `SimpleCommandMap`.
+- Various hardcoded values in `block` package classes have been moved to private constants to improve readability.
+- Added various constants used in the `LevelDB` world provider.

changelogs/4.4.md

@@ -0,0 +1,77 @@
+**For Minecraft: Bedrock Edition 1.18.30**
+
+### Note about API versions
+Plugins which don't touch the protocol and compatible with any previous 4.x.y version will also run on these releases and do not need API bumps.
+Plugin developers should **only** update their required API to this version if you need the changes in this build.
+
+**WARNING: If your plugin uses the protocol, you're not shielded by API change constraints.** You should consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you do.
+
+# 4.4.0
+Released 1st June 2022.
+
+## General
+- The server will now shut itself down if any of the following errors occur during startup:
+  - Any plugin fails to load or enable (plugins loaded by other plugins post-startup are **not** affected by this change) (**PR [#4951](https://github.com/pmmp/PocketMine-MP/pull/4951)**)
+    - The motivation for this change is to prevent situations where plugins failing to load could result in adverse outcomes, such as a world protection plugin leaving a lobby unprotected from griefing.
+    - If you encounter this problem, remove the offending plugin(s) or prevent it from loading using `plugin_list.yml`.
+    - See **PR [#4951](https://github.com/pmmp/PocketMine-MP/pull/4951)** for more detail on this change.
+  - Any world mentioned in `server.properties` or `pocketmine.yml` fails to load (worlds loaded by plugins are **not** affected by this change)
+  - Any world mentioned in `server.properties` or `pocketmine.yml` fails to generate (e.g. due to invalid generator settings)
+- Enabling the server whitelist while the server is running (e.g. using `/whitelist on`) will now kick any non-whitelisted players currently on the server (**PR [#4774](https://github.com/pmmp/PocketMine-MP/pull/4774)**).
+- Help for commands (`/help <name of command>`) now displays a list of aliases of that command.
+- A CRITICAL log message is now generated if a plugin disables itself when enabling, in case the plugin doesn't emit any error of its own.
+- The `/give` command now shows the alias used to find the given item in the success message, instead of the item ID/meta.
+
+## Fixes
+- Block placement has been fixed in many places where it previously didn't work correctly (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**):
+  - torches on top of slabs, upside-down stairs
+  - torches on the back face of stairs
+  - flower pots on top of fences
+  - the list goes on and on ...
+- Fixed backslash escapes not getting properly removed from commands in some cases.
+- Fixed aliases defined in the `aliases` section of `pocketmine.yml` not being treated as quote-aware.
+
+## Gameplay
+- Plants in flower pots can now be removed by right-clicking on the flower pot.
+- Leaves now have a 2% chance of dropping sticks when destroyed by hand (**PR [#5019](https://github.com/pmmp/PocketMine-MP/pull/5019)**).
+- Food exhaustion now matches Bedrock 1.18.30 (**PR [#5034](https://github.com/pmmp/PocketMine-MP/pull/5034)**).
+- Implemented Stonecutter block (**PR [#4732](https://github.com/pmmp/PocketMine-MP/pull/4732)**).
+
+## API
+### Block
+- Added `Block->getSupportType(Facing) : SupportType` (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**).
+  - This is used to determine the kind of support a block face can provide to a block (e.g. a torch) placed on it.
+- Added `utils\SupportType` enum (**PR [#4886](https://github.com/pmmp/PocketMine-MP/pull/4886)**).
+- `tile\Spawnable->isDirty()` and `tile\Spawnable->setDirty()` are now `@deprecated`.
+
+### Command
+- Added `CommandStringHelper::parseQuoteAware()`. This static method contains the code used by `SimpleCommandMap` used to parse quoted command arguments.
+
+### Entity
+- Added `Human::emote()` (**PR [#4610](https://github.com/pmmp/PocketMine-MP/pull/4610)**)
+
+### Event
+- `PlayerCommandPreprocessEvent` is now `@deprecated`, since its functionality is entirely replaced by other, general-purpose events.
+  - Use `CommandEvent` to intercept commands.
+  - Use `PlayerChatEvent` to intercept chat messages.
+  - To convert a chat message into a command, pass it directly to `Server->dispatchCommand()` with the player as sender.
+- Added `PlayerPostChunkSendEvent` (**PR [#4937](https://github.com/pmmp/PocketMine-MP/pull/4937)**).
+- Added `PlayerDeathEvent->setKeepXp()` (**PR [#4015](https://github.com/pmmp/PocketMine-MP/pull/4015)**).
+- `InventoryCloseEvent` is now called **after** the target window has been removed. This fixes various feedback loops caused by trying to open new windows to a player while there was one still active.
+  - As a side effect, this now means that `Player->getCurrentWindow()` will return `null` during `InventoryCloseEvent`. Use `InventoryCloseEvent->getInventory()` instead.
+
+### Item
+- `StringToItemParser` now recognizes `cod`, `raw_cod` and `cooked_cod` aliases.
+
+### Plugin
+- `DisablePluginException` may now be thrown from `Plugin::onEnable()` to make the server gracefully disable the plugin (without crashing) (**PR [#4780](https://github.com/pmmp/PocketMine-MP/pull/4780)**).
+- `PluginManager->registerEvent()` now returns the `RegisteredListener` created for the handler, to permit unregistering it later.
+
+## Internals
+- Private property declarations now use typed properties (PHP 7.4) and promoted constructor properties (PHP 8.0) wherever possible.
+  - Protected and public properties remain unchanged, since they can't be changed without breaking subclasses.
+- Promoted constructor properties are only used when it's consistently possible to promote most or all properties in a class.
+- Simplified and improved legibility of `FormattedCommandAlias`.
+- Added unit tests for the quote-aware command parser used by `SimpleCommandMap`.
+- Various hardcoded values in `block` package classes have been moved to private constants to improve readability.
+- Added various constants used in the `LevelDB` world provider.

composer.json

@@ -7,7 +7,7 @@
    "require": {
       "php": "^8.0",
       "php-64bit": "*",
-      "ext-chunkutils2": "^0.3.0",
+      "ext-chunkutils2": "^0.3.1",
       "ext-crypto": "^0.3.1",
       "ext-ctype": "*",
       "ext-curl": "*",
@@ -34,18 +34,18 @@
       "adhocore/json-comment": "^1.1",
       "fgrosse/phpasn1": "^2.3",
       "netresearch/jsonmapper": "^4.0",
-      "pocketmine/bedrock-data": "^1.4.0+bedrock-1.17.40",
-      "pocketmine/bedrock-protocol": "^5.0.0+bedrock-1.17.40",
+      "pocketmine/bedrock-data": "~1.7.0+bedrock-1.18.30",
+      "pocketmine/bedrock-protocol": "~9.0.0+bedrock-1.18.30",
       "pocketmine/binaryutils": "^0.2.1",
       "pocketmine/callback-validator": "^1.0.2",
       "pocketmine/classloader": "^0.2.0",
       "pocketmine/color": "^0.2.0",
-      "pocketmine/errorhandler": "^0.3.0",
-      "pocketmine/locale-data": "^1.0.3",
+      "pocketmine/errorhandler": "^0.6.0",
+      "pocketmine/locale-data": "~2.8.0",
       "pocketmine/log": "^0.4.0",
       "pocketmine/log-pthreads": "^0.4.0",
       "pocketmine/math": "^0.4.0",
-      "pocketmine/nbt": "^0.3.0",
+      "pocketmine/nbt": "^0.3.2",
       "pocketmine/raklib": "^0.14.2",
       "pocketmine/raklib-ipc": "^0.1.0",
       "pocketmine/snooze": "^0.3.0",
@@ -53,9 +53,9 @@
       "webmozart/path-util": "^2.3"
    },
    "require-dev": {
-      "phpstan/phpstan": "1.0.2",
-      "phpstan/phpstan-phpunit": "^1.0.0",
-      "phpstan/phpstan-strict-rules": "^1.0.0",
+      "phpstan/phpstan": "1.7.8",
+      "phpstan/phpstan-phpunit": "^1.1.0",
+      "phpstan/phpstan-strict-rules": "^1.2.0",
       "phpunit/phpunit": "^9.2"
    },
    "autoload": {
@@ -79,7 +79,7 @@
       "sort-packages": true
    },
    "scripts": {
-      "make-devtools": "@php -dphar.readonly=0 tests/plugins/DevTools/src/DevTools/ConsoleScript.php --make tests/plugins/DevTools --out plugins/DevTools.phar",
+      "make-devtools": "@php -dphar.readonly=0 tests/plugins/DevTools/src/ConsoleScript.php --make tests/plugins/DevTools --out plugins/DevTools.phar",
       "make-server": [
          "@composer install --no-dev --classmap-authoritative --ignore-platform-reqs",
          "@php -dphar.readonly=0 build/server-phar.php"

doxygen/doxygen.conf

@@ -1,4 +1,4 @@
-# Doxyfile 1.8.15
+# Doxyfile 1.9.3
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
@@ -93,14 +93,6 @@ ALLOW_UNICODE_NAMES    = NO
 
 OUTPUT_LANGUAGE        = English
 
-# The OUTPUT_TEXT_DIRECTION tag is used to specify the direction in which all
-# documentation generated by doxygen is written. Doxygen will use this
-# information to generate all generated output in the proper direction.
-# Possible values are: None, LTR, RTL and Context.
-# The default value is: None.
-
-OUTPUT_TEXT_DIRECTION  = None
-
 # If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member
 # descriptions after the members that are listed in the file and class
 # documentation (similar to Javadoc). Set to NO to disable this.
@@ -197,6 +189,16 @@ SHORT_NAMES            = NO
 
 JAVADOC_AUTOBRIEF      = NO
 
+# If the JAVADOC_BANNER tag is set to YES then doxygen will interpret a line
+# such as
+# /***************
+# as being the beginning of a Javadoc-style comment "banner". If set to NO, the
+# Javadoc-style will behave just like regular comments and it will not be
+# interpreted by doxygen.
+# The default value is: NO.
+
+JAVADOC_BANNER         = NO
+
 # If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
 # line (until the first dot) of a Qt-style comment as the brief description. If
 # set to NO, the Qt-style will behave just like regular Qt-style comments (thus
@@ -217,6 +219,14 @@ QT_AUTOBRIEF           = NO
 
 MULTILINE_CPP_IS_BRIEF = NO
 
+# By default Python docstrings are displayed as preformatted text and doxygen's
+# special commands cannot be used. By setting PYTHON_DOCSTRING to NO the
+# doxygen's special commands can be used and the contents of the docstring
+# documentation blocks is shown as doxygen documentation.
+# The default value is: YES.
+
+PYTHON_DOCSTRING       = YES
+
 # If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
 # documentation from any documented member that it re-implements.
 # The default value is: YES.
@@ -240,25 +250,19 @@ TAB_SIZE               = 4
 # the documentation. An alias has the form:
 # name=value
 # For example adding
-# "sideeffect=@par Side Effects:\n"
+# "sideeffect=@par Side Effects:^^"
 # will allow you to put the command \sideeffect (or @sideeffect) in the
 # documentation, which will result in a user-defined paragraph with heading
-# "Side Effects:". You can put \n's in the value part of an alias to insert
-# newlines (in the resulting output). You can put ^^ in the value part of an
-# alias to insert a newline as if a physical newline was in the original file.
-# When you need a literal { or } or , in the value part of an alias you have to
-# escape them by means of a backslash (\), this can lead to conflicts with the
-# commands \{ and \} for these it is advised to use the version @{ and @} or use
-# a double escape (\\{ and \\})
+# "Side Effects:". Note that you cannot put \n's in the value part of an alias
+# to insert newlines (in the resulting output). You can put ^^ in the value part
+# of an alias to insert a newline as if a physical newline was in the original
+# file. When you need a literal { or } or , in the value part of an alias you
+# have to escape them by means of a backslash (\), this can lead to conflicts
+# with the commands \{ and \} for these it is advised to use the version @{ and
+# @} or use a double escape (\\{ and \\})
 
 ALIASES                =
 
-# This tag can be used to specify a number of word-keyword mappings (TCL only).
-# A mapping has the form "name=value". For example adding "class=itcl::class"
-# will allow you to use the command class in the itcl::class meaning.
-
-TCL_SUBST              =
-
 # Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
 # only. Doxygen will then generate output that is more tailored for C. For
 # instance, some of the names that are used will be different. The list of all
@@ -299,19 +303,22 @@ OPTIMIZE_OUTPUT_SLICE  = NO
 # parses. With this tag you can assign which parser to use for a given
 # extension. Doxygen has a built-in mapping, but you can override or extend it
 # using this tag. The format is ext=language, where ext is a file extension, and
-# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
-# Csharp (C#), C, C++, D, PHP, md (Markdown), Objective-C, Python, Slice,
-# Fortran (fixed format Fortran: FortranFixed, free formatted Fortran:
+# language is one of the parsers supported by doxygen: IDL, Java, JavaScript,
+# Csharp (C#), C, C++, Lex, D, PHP, md (Markdown), Objective-C, Python, Slice,
+# VHDL, Fortran (fixed format Fortran: FortranFixed, free formatted Fortran:
 # FortranFree, unknown formatted Fortran: Fortran. In the later case the parser
 # tries to guess whether the code is fixed or free formatted code, this is the
-# default for Fortran type files), VHDL, tcl. For instance to make doxygen treat
-# .inc files as Fortran files (default is PHP), and .f files as C (default is
-# Fortran), use: inc=Fortran f=C.
+# default for Fortran type files). For instance to make doxygen treat .inc files
+# as Fortran files (default is PHP), and .f files as C (default is Fortran),
+# use: inc=Fortran f=C.
 #
 # Note: For files without extension you can use no_extension as a placeholder.
 #
 # Note that for custom extensions you also need to set FILE_PATTERNS otherwise
-# the files are not read by doxygen.
+# the files are not read by doxygen. When specifying no_extension you should add
+# * to the FILE_PATTERNS.
+#
+# Note see also the list of default file extension mappings.
 
 EXTENSION_MAPPING      =
 
@@ -329,7 +336,7 @@ MARKDOWN_SUPPORT       = YES
 # to that level are automatically included in the table of contents, even if
 # they do not have an id attribute.
 # Note: This feature currently applies only to Markdown headings.
-# Minimum value: 0, maximum value: 99, default value: 0.
+# Minimum value: 0, maximum value: 99, default value: 5.
 # This tag requires that the tag MARKDOWN_SUPPORT is set to YES.
 
 TOC_INCLUDE_HEADINGS   = 0
@@ -445,6 +452,19 @@ TYPEDEF_HIDES_STRUCT   = NO
 
 LOOKUP_CACHE_SIZE      = 0
 
+# The NUM_PROC_THREADS specifies the number threads doxygen is allowed to use
+# during processing. When set to 0 doxygen will based this on the number of
+# cores available in the system. You can set it explicitly to a value larger
+# than 0 to get more control over the balance between CPU load and processing
+# speed. At this moment only the input processing can be done using multiple
+# threads. Since this is still an experimental feature the default is set to 1,
+# which effectively disables parallel processing. Please report any issues you
+# encounter. Generating dot graphs in parallel is controlled by the
+# DOT_NUM_THREADS setting.
+# Minimum value: 0, maximum value: 32, default value: 1.
+
+NUM_PROC_THREADS       = 1
+
 #---------------------------------------------------------------------------
 # Build related configuration options
 #---------------------------------------------------------------------------
@@ -465,6 +485,12 @@ EXTRACT_ALL            = NO
 
 EXTRACT_PRIVATE        = NO
 
+# If the EXTRACT_PRIV_VIRTUAL tag is set to YES, documented private virtual
+# methods of a class will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIV_VIRTUAL   = NO
+
 # If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal
 # scope will be included in the documentation.
 # The default value is: NO.
@@ -502,6 +528,13 @@ EXTRACT_LOCAL_METHODS  = YES
 
 EXTRACT_ANON_NSPACES   = YES
 
+# If this flag is set to YES, the name of an unnamed parameter in a declaration
+# will be determined by the corresponding definition. By default unnamed
+# parameters remain unnamed in the output.
+# The default value is: YES.
+
+RESOLVE_UNNAMED_PARAMS = YES
+
 # If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
 # undocumented members inside documented classes or files. If set to NO these
 # members will be included in the various overviews, but no documentation
@@ -519,8 +552,8 @@ HIDE_UNDOC_MEMBERS     = NO
 HIDE_UNDOC_CLASSES     = NO
 
 # If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
-# (class|struct|union) declarations. If set to NO, these declarations will be
-# included in the documentation.
+# declarations. If set to NO, these declarations will be included in the
+# documentation.
 # The default value is: NO.
 
 HIDE_FRIEND_COMPOUNDS  = NO
@@ -539,11 +572,18 @@ HIDE_IN_BODY_DOCS      = YES
 
 INTERNAL_DOCS          = NO
 
-# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
-# names in lower-case letters. If set to YES, upper-case letters are also
-# allowed. This is useful if you have classes or files whose names only differ
-# in case and if your file system supports case sensitive file names. Windows
-# and Mac users are advised to set this option to NO.
+# With the correct setting of option CASE_SENSE_NAMES doxygen will better be
+# able to match the capabilities of the underlying filesystem. In case the
+# filesystem is case sensitive (i.e. it supports files in the same directory
+# whose names only differ in casing), the option must be set to YES to properly
+# deal with such files in case they appear in the input. For filesystems that
+# are not case sensitive the option should be be set to NO to properly deal with
+# output files written for symbols that only differ in casing, such as for two
+# classes, one named CLASS and the other named Class, and to also support
+# references to files without having to specify the exact matching casing. On
+# Windows (including Cygwin) and MacOS, users should typically set this option
+# to NO, whereas on Linux or other Unix flavors it should typically be set to
+# YES.
 # The default value is: system dependent.
 
 CASE_SENSE_NAMES       = NO
@@ -562,6 +602,12 @@ HIDE_SCOPE_NAMES       = NO
 
 HIDE_COMPOUND_REFERENCE= NO
 
+# If the SHOW_HEADERFILE tag is set to YES then the documentation for a class
+# will show which file needs to be included to use the class.
+# The default value is: YES.
+
+SHOW_HEADERFILE        = YES
+
 # If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
 # the files that are included by a file in the documentation of that file.
 # The default value is: YES.
@@ -719,7 +765,8 @@ FILE_VERSION_FILTER    =
 # output files in an output format independent way. To create the layout file
 # that represents doxygen's defaults, run doxygen with the -l option. You can
 # optionally specify a file name after the option, if omitted DoxygenLayout.xml
-# will be used as the name of the layout file.
+# will be used as the name of the layout file. See also section "Changing the
+# layout of pages" for information.
 #
 # Note that if you run doxygen from a directory containing a file called
 # DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
@@ -765,24 +812,35 @@ WARNINGS               = NO
 WARN_IF_UNDOCUMENTED   = NO
 
 # If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
-# potential errors in the documentation, such as not documenting some parameters
-# in a documented function, or documenting parameters that don't exist or using
-# markup commands wrongly.
+# potential errors in the documentation, such as documenting some parameters in
+# a documented function twice, or documenting parameters that don't exist or
+# using markup commands wrongly.
 # The default value is: YES.
 
 WARN_IF_DOC_ERROR      = YES
 
+# If WARN_IF_INCOMPLETE_DOC is set to YES, doxygen will warn about incomplete
+# function parameter documentation. If set to NO, doxygen will accept that some
+# parameters have no documentation without warning.
+# The default value is: YES.
+
+WARN_IF_INCOMPLETE_DOC = YES
+
 # This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
 # are documented, but have no documentation for their parameters or return
-# value. If set to NO, doxygen will only warn about wrong or incomplete
-# parameter documentation, but not about the absence of documentation. If
-# EXTRACT_ALL is set to YES then this flag will automatically be disabled.
+# value. If set to NO, doxygen will only warn about wrong parameter
+# documentation, but not about the absence of documentation. If EXTRACT_ALL is
+# set to YES then this flag will automatically be disabled. See also
+# WARN_IF_INCOMPLETE_DOC
 # The default value is: NO.
 
 WARN_NO_PARAMDOC       = NO
 
 # If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
-# a warning is encountered.
+# a warning is encountered. If the WARN_AS_ERROR tag is set to FAIL_ON_WARNINGS
+# then doxygen will continue running as if WARN_AS_ERROR tag is set to NO, but
+# at the end of the doxygen process doxygen will return with a non-zero status.
+# Possible values are: NO, YES and FAIL_ON_WARNINGS.
 # The default value is: NO.
 
 WARN_AS_ERROR          = NO
@@ -799,7 +857,10 @@ WARN_FORMAT            = "$file:$line: $text"
 
 # The WARN_LOGFILE tag can be used to specify a file to which warning and error
 # messages should be written. If left blank the output is written to standard
-# error (stderr).
+# error (stderr). In case the file specified cannot be opened for writing the
+# warning and error messages are written to standard error. When as file - is
+# specified the warning and error messages are written to standard output
+# (stdout).
 
 WARN_LOGFILE           =
 
@@ -820,8 +881,8 @@ INPUT                  = ../src \
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
 # libiconv (or the iconv built into libc) for the transcoding. See the libiconv
-# documentation (see: https://www.gnu.org/software/libiconv/) for the list of
-# possible encodings.
+# documentation (see:
+# https://www.gnu.org/software/libiconv/) for the list of possible encodings.
 # The default value is: UTF-8.
 
 INPUT_ENCODING         = UTF-8
@@ -834,11 +895,15 @@ INPUT_ENCODING         = UTF-8
 # need to set EXTENSION_MAPPING for the extension otherwise the files are not
 # read by doxygen.
 #
+# Note the list of default checked file patterns might differ from the list of
+# default file extension mappings.
+#
 # If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp,
 # *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h,
-# *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc,
-# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.pyw, *.f90, *.f95, *.f03, *.f08,
-# *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf, *.qsf and *.ice.
+# *.hh, *.hxx, *.hpp, *.h++, *.l, *.cs, *.d, *.php, *.php4, *.php5, *.phtml,
+# *.inc, *.m, *.markdown, *.md, *.mm, *.dox (to be provided as doxygen C
+# comment), *.py, *.pyw, *.f90, *.f95, *.f03, *.f08, *.f18, *.f, *.for, *.vhd,
+# *.vhdl, *.ucf, *.qsf and *.ice.
 
 FILE_PATTERNS          = *.php
 
@@ -883,7 +948,7 @@ EXCLUDE_PATTERNS       = */bin/* \
 # (namespaces, classes, functions, etc.) that should be excluded from the
 # output. The symbol name can be a fully qualified name, a word, or if the
 # wildcard * is used, a substring. Examples: ANamespace, AClass,
-# AClass::ANamespace, ANamespace::*Test
+# ANamespace::AClass, ANamespace::*Test
 #
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories use the pattern */test/*
@@ -1059,16 +1124,24 @@ USE_HTAGS              = NO
 VERBATIM_HEADERS       = YES
 
 # If the CLANG_ASSISTED_PARSING tag is set to YES then doxygen will use the
-# clang parser (see: http://clang.llvm.org/) for more accurate parsing at the
-# cost of reduced performance. This can be particularly helpful with template
-# rich C++ code for which doxygen's built-in parser lacks the necessary type
-# information.
+# clang parser (see:
+# http://clang.llvm.org/) for more accurate parsing at the cost of reduced
+# performance. This can be particularly helpful with template rich C++ code for
+# which doxygen's built-in parser lacks the necessary type information.
 # Note: The availability of this option depends on whether or not doxygen was
 # generated with the -Duse_libclang=ON option for CMake.
 # The default value is: NO.
 
 CLANG_ASSISTED_PARSING = NO
 
+# If the CLANG_ASSISTED_PARSING tag is set to YES and the CLANG_ADD_INC_PATHS
+# tag is set to YES then doxygen will add the directory of each input to the
+# include path.
+# The default value is: YES.
+# This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES.
+
+CLANG_ADD_INC_PATHS    = YES
+
 # If clang assisted parsing is enabled you can provide the compiler with command
 # line options that you would normally use when invoking the compiler. Note that
 # the include paths will already be set by doxygen for the files and directories
@@ -1078,10 +1151,13 @@ CLANG_ASSISTED_PARSING = NO
 CLANG_OPTIONS          =
 
 # If clang assisted parsing is enabled you can provide the clang parser with the
-# path to the compilation database (see:
-# http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html) used when the files
-# were built. This is equivalent to specifying the "-p" option to a clang tool,
-# such as clang-check. These options will then be passed to the parser.
+# path to the directory containing a file called compile_commands.json. This
+# file is the compilation database (see:
+# http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html) containing the
+# options used when the source files were built. This is equivalent to
+# specifying the -p option to a clang tool, such as clang-check. These options
+# will then be passed to the parser. Any options specified with CLANG_OPTIONS
+# will be added as well.
 # Note: The availability of this option depends on whether or not doxygen was
 # generated with the -Duse_libclang=ON option for CMake.
 
@@ -1098,13 +1174,6 @@ CLANG_DATABASE_PATH    =
 
 ALPHABETICAL_INDEX     = YES
 
-# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
-# which the alphabetical index list will be split.
-# Minimum value: 1, maximum value: 20, default value: 5.
-# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
-
-COLS_IN_ALPHA_INDEX    = 5
-
 # In case all classes in a project start with a common prefix, all classes will
 # be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
 # can be used to specify a prefix (or a list of prefixes) that should be ignored
@@ -1204,7 +1273,7 @@ HTML_EXTRA_FILES       =
 
 # The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
 # will adjust the colors in the style sheet and background images according to
-# this color. Hue is specified as an angle on a colorwheel, see
+# this color. Hue is specified as an angle on a color-wheel, see
 # https://en.wikipedia.org/wiki/Hue for more information. For instance the value
 # 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
 # purple, and 360 is red again.
@@ -1214,7 +1283,7 @@ HTML_EXTRA_FILES       =
 HTML_COLORSTYLE_HUE    = 220
 
 # The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
-# in the HTML output. For a value of 0 the output will use grayscales only. A
+# in the HTML output. For a value of 0 the output will use gray-scales only. A
 # value of 255 will produce the most vivid colors.
 # Minimum value: 0, maximum value: 255, default value: 100.
 # This tag requires that the tag GENERATE_HTML is set to YES.
@@ -1239,13 +1308,13 @@ HTML_COLORSTYLE_GAMMA  = 80
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_TIMESTAMP         = YES
+HTML_TIMESTAMP         = NO
 
 # If the HTML_DYNAMIC_MENUS tag is set to YES then the generated HTML
 # documentation will contain a main index with vertical navigation menus that
-# are dynamically created via Javascript. If disabled, the navigation index will
+# are dynamically created via JavaScript. If disabled, the navigation index will
 # consists of multiple levels of tabs that are statically embedded in every HTML
-# page. Disable this option to support browsers that do not have Javascript,
+# page. Disable this option to support browsers that do not have JavaScript,
 # like the Qt help browser.
 # The default value is: YES.
 # This tag requires that the tag GENERATE_HTML is set to YES.
@@ -1275,10 +1344,11 @@ HTML_INDEX_NUM_ENTRIES = 100
 
 # If the GENERATE_DOCSET tag is set to YES, additional index files will be
 # generated that can be used as input for Apple's Xcode 3 integrated development
-# environment (see: https://developer.apple.com/xcode/), introduced with OSX
-# 10.5 (Leopard). To create a documentation set, doxygen will generate a
-# Makefile in the HTML output directory. Running make will produce the docset in
-# that directory and running make install will install the docset in
+# environment (see:
+# https://developer.apple.com/xcode/), introduced with OSX 10.5 (Leopard). To
+# create a documentation set, doxygen will generate a Makefile in the HTML
+# output directory. Running make will produce the docset in that directory and
+# running make install will install the docset in
 # ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
 # startup. See https://developer.apple.com/library/archive/featuredarticles/Doxy
 # genXcode/_index.html for more information.
@@ -1295,6 +1365,13 @@ GENERATE_DOCSET        = NO
 
 DOCSET_FEEDNAME        = "Doxygen generated docs"
 
+# This tag determines the URL of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDURL         =
+
 # This tag specifies a string that should uniquely identify the documentation
 # set bundle. This should be a reverse domain-name style string, e.g.
 # com.mycompany.MyDocSet. Doxygen will append .docset to the name.
@@ -1320,8 +1397,12 @@ DOCSET_PUBLISHER_NAME  = Publisher
 # If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
 # additional HTML index files: index.hhp, index.hhc, and index.hhk. The
 # index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
-# (see: https://www.microsoft.com/en-us/download/details.aspx?id=21138) on
-# Windows.
+# on Windows. In the beginning of 2021 Microsoft took the original page, with
+# a.o. the download links, offline the HTML help workshop was already many years
+# in maintenance mode). You can download the HTML help workshop from the web
+# archives at Installation executable (see:
+# http://web.archive.org/web/20160201063255/http://download.microsoft.com/downlo
+# ad/0/A/9/0A939EF6-E31C-430F-A3DF-DFAE7960D564/htmlhelp.exe).
 #
 # The HTML Help Workshop contains a compiler that can convert all HTML output
 # generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
@@ -1351,7 +1432,7 @@ CHM_FILE               =
 HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated
-# (YES) or that it should be included in the master .chm file (NO).
+# (YES) or that it should be included in the main .chm file (NO).
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
@@ -1396,7 +1477,8 @@ QCH_FILE               =
 
 # The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
 # Project output. For more information please see Qt Help Project / Namespace
-# (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#namespace).
+# (see:
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#namespace).
 # The default value is: org.doxygen.Project.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
@@ -1404,8 +1486,8 @@ QHP_NAMESPACE          = org.doxygen.Project
 
 # The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
 # Help Project output. For more information please see Qt Help Project / Virtual
-# Folders (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#virtual-
-# folders).
+# Folders (see:
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#virtual-folders).
 # The default value is: doc.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
@@ -1413,30 +1495,30 @@ QHP_VIRTUAL_FOLDER     = doc
 
 # If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
 # filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
-# filters).
+# Filters (see:
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-filters).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
 QHP_CUST_FILTER_NAME   =
 
 # The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
 # custom filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
-# filters).
+# Filters (see:
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-filters).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
 QHP_CUST_FILTER_ATTRS  =
 
 # The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
 # project's filter section matches. Qt Help Project / Filter Attributes (see:
-# http://doc.qt.io/archives/qt-4.8/qthelpproject.html#filter-attributes).
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#filter-attributes).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
 QHP_SECT_FILTER_ATTRS  =
 
-# The QHG_LOCATION tag can be used to specify the location of Qt's
-# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
-# generated .qhp file.
+# The QHG_LOCATION tag can be used to specify the location (absolute path
+# including file name) of Qt's qhelpgenerator. If non-empty doxygen will try to
+# run qhelpgenerator on the generated .qhp file.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
 QHG_LOCATION           =
@@ -1479,16 +1561,28 @@ DISABLE_INDEX          = NO
 # to work a browser that supports JavaScript, DHTML, CSS and frames is required
 # (i.e. any modern browser). Windows users are probably better off using the
 # HTML help feature. Via custom style sheets (see HTML_EXTRA_STYLESHEET) one can
-# further fine-tune the look of the index. As an example, the default style
-# sheet generated by doxygen has an example that shows how to put an image at
-# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
-# the same information as the tab index, you could consider setting
-# DISABLE_INDEX to YES when enabling this option.
+# further fine tune the look of the index (see "Fine-tuning the output"). As an
+# example, the default style sheet generated by doxygen has an example that
+# shows how to put an image at the root of the tree instead of the PROJECT_NAME.
+# Since the tree basically has the same information as the tab index, you could
+# consider setting DISABLE_INDEX to YES when enabling this option.
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
 GENERATE_TREEVIEW      = YES
 
+# When both GENERATE_TREEVIEW and DISABLE_INDEX are set to YES, then the
+# FULL_SIDEBAR option determines if the side bar is limited to only the treeview
+# area (value NO) or if it should extend to the full height of the window (value
+# YES). Setting this to YES gives a layout similar to
+# https://docs.readthedocs.io with more room for contents, but less room for the
+# project logo, title, and description. If either GENERATE_TREEVIEW or
+# DISABLE_INDEX is set to NO, this option has no effect.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FULL_SIDEBAR           = NO
+
 # The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
 # doxygen will group on one line in the generated HTML documentation.
 #
@@ -1513,6 +1607,24 @@ TREEVIEW_WIDTH         = 250
 
 EXT_LINKS_IN_WINDOW    = NO
 
+# If the OBFUSCATE_EMAILS tag is set to YES, doxygen will obfuscate email
+# addresses.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+OBFUSCATE_EMAILS       = YES
+
+# If the HTML_FORMULA_FORMAT option is set to svg, doxygen will use the pdf2svg
+# tool (see https://github.com/dawbarton/pdf2svg) or inkscape (see
+# https://inkscape.org) to generate formulas as SVG images instead of PNGs for
+# the HTML output. These images will generally look nicer at scaled resolutions.
+# Possible values are: png (the default) and svg (looks nicer but requires the
+# pdf2svg or inkscape tool).
+# The default value is: png.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FORMULA_FORMAT    = png
+
 # Use this tag to change the font size of LaTeX formulas included as images in
 # the HTML documentation. When you change the font size after a successful
 # doxygen run you need to manually remove any form_*.png images from the HTML
@@ -1533,8 +1645,14 @@ FORMULA_FONTSIZE       = 10
 
 FORMULA_TRANSPARENT    = YES
 
+# The FORMULA_MACROFILE can contain LaTeX \newcommand and \renewcommand commands
+# to create new LaTeX commands to be used in formulas as building blocks. See
+# the section "Including formulas" for details.
+
+FORMULA_MACROFILE      =
+
 # Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
-# https://www.mathjax.org) which uses client side Javascript for the rendering
+# https://www.mathjax.org) which uses client side JavaScript for the rendering
 # instead of using pre-rendered bitmaps. Use this if you do not have LaTeX
 # installed or if you want to formulas look prettier in the HTML output. When
 # enabled you may also need to install MathJax separately and configure the path
@@ -1544,11 +1662,29 @@ FORMULA_TRANSPARENT    = YES
 
 USE_MATHJAX            = YES
 
+# With MATHJAX_VERSION it is possible to specify the MathJax version to be used.
+# Note that the different versions of MathJax have different requirements with
+# regards to the different settings, so it is possible that also other MathJax
+# settings have to be changed when switching between the different MathJax
+# versions.
+# Possible values are: MathJax_2 and MathJax_3.
+# The default value is: MathJax_2.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_VERSION        = MathJax_2
+
 # When MathJax is enabled you can set the default output format to be used for
-# the MathJax output. See the MathJax site (see:
-# http://docs.mathjax.org/en/latest/output.html) for more details.
+# the MathJax output. For more details about the output format see MathJax
+# version 2 (see:
+# http://docs.mathjax.org/en/v2.7-latest/output.html) and MathJax version 3
+# (see:
+# http://docs.mathjax.org/en/latest/web/components/output.html).
 # Possible values are: HTML-CSS (which is slower, but has the best
-# compatibility), NativeMML (i.e. MathML) and SVG.
+# compatibility. This is the name for Mathjax version 2, for MathJax version 3
+# this will be translated into chtml), NativeMML (i.e. MathML. Only supported
+# for NathJax 2. For MathJax version 3 chtml will be used instead.), chtml (This
+# is the name for Mathjax version 3, for MathJax version 2 this will be
+# translated into HTML-CSS) and SVG.
 # The default value is: HTML-CSS.
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
@@ -1561,22 +1697,29 @@ MATHJAX_FORMAT         = HTML-CSS
 # MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
 # Content Delivery Network so you can quickly see the result without installing
 # MathJax. However, it is strongly recommended to install a local copy of
-# MathJax from https://www.mathjax.org before deployment.
-# The default value is: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/.
+# MathJax from https://www.mathjax.org before deployment. The default value is:
+# - in case of MathJax version 2: https://cdn.jsdelivr.net/npm/mathjax@2
+# - in case of MathJax version 3: https://cdn.jsdelivr.net/npm/mathjax@3
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
 MATHJAX_RELPATH        = https://cdn.mathjax.org/mathjax/latest
 
 # The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
 # extension names that should be enabled during MathJax rendering. For example
+# for MathJax version 2 (see
+# https://docs.mathjax.org/en/v2.7-latest/tex.html#tex-and-latex-extensions):
 # MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# For example for MathJax version 3 (see
+# http://docs.mathjax.org/en/latest/input/tex/extensions/index.html):
+# MATHJAX_EXTENSIONS = ams
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
 MATHJAX_EXTENSIONS     =
 
 # The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
 # of code that will be used on startup of the MathJax code. See the MathJax site
-# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# (see:
+# http://docs.mathjax.org/en/v2.7-latest/output.html) for more details. For an
 # example see the documentation.
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
@@ -1604,7 +1747,7 @@ MATHJAX_CODEFILE       =
 SEARCHENGINE           = YES
 
 # When the SERVER_BASED_SEARCH tag is enabled the search engine will be
-# implemented using a web server instead of a web client using Javascript. There
+# implemented using a web server instead of a web client using JavaScript. There
 # are two flavors of web server based searching depending on the EXTERNAL_SEARCH
 # setting. When disabled, doxygen will generate a PHP script for searching and
 # an index file used by the script. When EXTERNAL_SEARCH is enabled the indexing
@@ -1623,7 +1766,8 @@ SERVER_BASED_SEARCH    = NO
 #
 # Doxygen ships with an example indexer (doxyindexer) and search engine
 # (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: https://xapian.org/).
+# Xapian (see:
+# https://xapian.org/).
 #
 # See the section "External Indexing and Searching" for details.
 # The default value is: NO.
@@ -1636,8 +1780,9 @@ EXTERNAL_SEARCH        = NO
 #
 # Doxygen ships with an example indexer (doxyindexer) and search engine
 # (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: https://xapian.org/). See the section "External Indexing and
-# Searching" for details.
+# Xapian (see:
+# https://xapian.org/). See the section "External Indexing and Searching" for
+# details.
 # This tag requires that the tag SEARCHENGINE is set to YES.
 
 SEARCHENGINE_URL       =
@@ -1708,10 +1853,11 @@ LATEX_CMD_NAME         = latex
 MAKEINDEX_CMD_NAME     = makeindex
 
 # The LATEX_MAKEINDEX_CMD tag can be used to specify the command name to
-# generate index for LaTeX.
+# generate index for LaTeX. In case there is no backslash (\) as first character
+# it will be automatically added in the LaTeX code.
 # Note: This tag is used in the generated output file (.tex).
 # See also: MAKEINDEX_CMD_NAME for the part in the Makefile / make.bat.
-# The default value is: \makeindex.
+# The default value is: makeindex.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 LATEX_MAKEINDEX_CMD    = \makeindex
@@ -1745,29 +1891,31 @@ PAPER_TYPE             = a4
 
 EXTRA_PACKAGES         =
 
-# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
-# generated LaTeX document. The header should contain everything until the first
-# chapter. If it is left blank doxygen will generate a standard header. See
-# section "Doxygen usage" for information on how to let doxygen write the
-# default header to a separate file.
+# The LATEX_HEADER tag can be used to specify a user-defined LaTeX header for
+# the generated LaTeX document. The header should contain everything until the
+# first chapter. If it is left blank doxygen will generate a standard header. It
+# is highly recommended to start with a default header using
+# doxygen -w latex new_header.tex new_footer.tex new_stylesheet.sty
+# and then modify the file new_header.tex. See also section "Doxygen usage" for
+# information on how to generate the default header that doxygen normally uses.
 #
-# Note: Only use a user-defined header if you know what you are doing! The
-# following commands have a special meaning inside the header: $title,
-# $datetime, $date, $doxygenversion, $projectname, $projectnumber,
-# $projectbrief, $projectlogo. Doxygen will replace $title with the empty
-# string, for the replacement values of the other commands the user is referred
-# to HTML_HEADER.
+# Note: Only use a user-defined header if you know what you are doing!
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. The following
+# commands have a special meaning inside the header (and footer): For a
+# description of the possible markers and block names see the documentation.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 LATEX_HEADER           =
 
-# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
-# generated LaTeX document. The footer should contain everything after the last
-# chapter. If it is left blank doxygen will generate a standard footer. See
+# The LATEX_FOOTER tag can be used to specify a user-defined LaTeX footer for
+# the generated LaTeX document. The footer should contain everything after the
+# last chapter. If it is left blank doxygen will generate a standard footer. See
 # LATEX_HEADER for more information on how to generate a default footer and what
-# special commands can be used inside the footer.
-#
-# Note: Only use a user-defined footer if you know what you are doing!
+# special commands can be used inside the footer. See also section "Doxygen
+# usage" for information on how to generate the default footer that doxygen
+# normally uses. Note: Only use a user-defined footer if you know what you are
+# doing!
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 LATEX_FOOTER           =
@@ -1800,9 +1948,11 @@ LATEX_EXTRA_FILES      =
 
 PDF_HYPERLINKS         = YES
 
-# If the USE_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
-# the PDF file directly from the LaTeX files. Set this option to YES, to get a
-# higher quality PDF documentation.
+# If the USE_PDFLATEX tag is set to YES, doxygen will use the engine as
+# specified with LATEX_CMD_NAME to generate the PDF file directly from the LaTeX
+# files. Set this option to YES, to get a higher quality PDF documentation.
+#
+# See also section LATEX_CMD_NAME for selecting the engine.
 # The default value is: YES.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
@@ -1810,8 +1960,7 @@ USE_PDFLATEX           = YES
 
 # If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
 # command to the generated LaTeX files. This will instruct LaTeX to keep running
-# if errors occur, instead of asking the user for help. This option is also used
-# when generating formulas in HTML.
+# if errors occur, instead of asking the user for help.
 # The default value is: NO.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
@@ -1824,16 +1973,6 @@ LATEX_BATCHMODE        = NO
 
 LATEX_HIDE_INDICES     = NO
 
-# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
-# code with syntax highlighting in the LaTeX output.
-#
-# Note that which sources are shown also depends on other settings such as
-# SOURCE_BROWSER.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_LATEX is set to YES.
-
-LATEX_SOURCE_CODE      = NO
-
 # The LATEX_BIB_STYLE tag can be used to specify the style to use for the
 # bibliography, e.g. plainnat, or ieeetr. See
 # https://en.wikipedia.org/wiki/BibTeX and \cite for more info.
@@ -1914,16 +2053,6 @@ RTF_STYLESHEET_FILE    =
 
 RTF_EXTENSIONS_FILE    =
 
-# If the RTF_SOURCE_CODE tag is set to YES then doxygen will include source code
-# with syntax highlighting in the RTF output.
-#
-# Note that which sources are shown also depends on other settings such as
-# SOURCE_BROWSER.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_RTF is set to YES.
-
-RTF_SOURCE_CODE        = NO
-
 #---------------------------------------------------------------------------
 # Configuration options related to the man page output
 #---------------------------------------------------------------------------
@@ -2020,15 +2149,6 @@ GENERATE_DOCBOOK       = NO
 
 DOCBOOK_OUTPUT         = docbook
 
-# If the DOCBOOK_PROGRAMLISTING tag is set to YES, doxygen will include the
-# program listings (including syntax highlighting and cross-referencing
-# information) to the DOCBOOK output. Note that enabling this will significantly
-# increase the size of the DOCBOOK output.
-# The default value is: NO.
-# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
-
-DOCBOOK_PROGRAMLISTING = NO
-
 #---------------------------------------------------------------------------
 # Configuration options for the AutoGen Definitions output
 #---------------------------------------------------------------------------
@@ -2203,34 +2323,10 @@ EXTERNAL_GROUPS        = YES
 
 EXTERNAL_PAGES         = YES
 
-# The PERL_PATH should be the absolute path and name of the perl script
-# interpreter (i.e. the result of 'which perl').
-# The default file (with absolute path) is: /usr/bin/perl.
-
-PERL_PATH              = /usr/bin/perl
-
 #---------------------------------------------------------------------------
 # Configuration options related to the dot tool
 #---------------------------------------------------------------------------
 
-# If the CLASS_DIAGRAMS tag is set to YES, doxygen will generate a class diagram
-# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
-# NO turns the diagrams off. Note that this option also works with HAVE_DOT
-# disabled, but it is recommended to install and use dot, since it yields more
-# powerful graphs.
-# The default value is: YES.
-
-CLASS_DIAGRAMS         = NO
-
-# You can define message sequence charts within doxygen comments using the \msc
-# command. Doxygen will then run the mscgen tool (see:
-# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
-# documentation. The MSCGEN_PATH tag allows you to specify the directory where
-# the mscgen tool resides. If left empty the tool is assumed to be found in the
-# default search path.
-
-MSCGEN_PATH            =
-
 # You can include diagrams made with dia in doxygen documentation. Doxygen will
 # then run dia to produce the diagram and insert it in the documentation. The
 # DIA_PATH tag allows you to specify the directory where the dia binary resides.
@@ -2287,11 +2383,14 @@ DOT_FONTSIZE           = 10
 
 DOT_FONTPATH           =
 
-# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
-# each documented class showing the direct and indirect inheritance relations.
-# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# If the CLASS_GRAPH tag is set to YES (or GRAPH) then doxygen will generate a
+# graph for each documented class showing the direct and indirect inheritance
+# relations. In case HAVE_DOT is set as well dot will be used to draw the graph,
+# otherwise the built-in generator will be used. If the CLASS_GRAPH tag is set
+# to TEXT the direct and indirect inheritance relations will be shown as texts /
+# links.
+# Possible values are: NO, YES, TEXT and GRAPH.
 # The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
 
 CLASS_GRAPH            = YES
 
@@ -2328,10 +2427,32 @@ UML_LOOK               = YES
 # but if the number exceeds 15, the total amount of fields shown is limited to
 # 10.
 # Minimum value: 0, maximum value: 100, default value: 10.
-# This tag requires that the tag HAVE_DOT is set to YES.
+# This tag requires that the tag UML_LOOK is set to YES.
 
 UML_LIMIT_NUM_FIELDS   = 10
 
+# If the DOT_UML_DETAILS tag is set to NO, doxygen will show attributes and
+# methods without types and arguments in the UML graphs. If the DOT_UML_DETAILS
+# tag is set to YES, doxygen will add type and arguments for attributes and
+# methods in the UML graphs. If the DOT_UML_DETAILS tag is set to NONE, doxygen
+# will not generate fields with class member information in the UML graphs. The
+# class diagrams will look similar to the default class diagrams but using UML
+# notation for the relationships.
+# Possible values are: NO, YES and NONE.
+# The default value is: NO.
+# This tag requires that the tag UML_LOOK is set to YES.
+
+DOT_UML_DETAILS        = NO
+
+# The DOT_WRAP_THRESHOLD tag can be used to set the maximum number of characters
+# to display on a single line. If the actual line length exceeds this threshold
+# significantly it will wrapped across multiple lines. Some heuristics are apply
+# to avoid ugly line breaks.
+# Minimum value: 0, maximum value: 1000, default value: 17.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_WRAP_THRESHOLD     = 17
+
 # If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
 # collaboration graphs will show the relations between templates and their
 # instances.
@@ -2398,6 +2519,13 @@ GRAPHICAL_HIERARCHY    = YES
 
 DIRECTORY_GRAPH        = YES
 
+# The DIR_GRAPH_MAX_DEPTH tag can be used to limit the maximum number of levels
+# of child directories generated in directory dependency graphs by dot.
+# Minimum value: 1, maximum value: 25, default value: 1.
+# This tag requires that the tag DIRECTORY_GRAPH is set to YES.
+
+DIR_GRAPH_MAX_DEPTH    = 1
+
 # The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
 # generated by dot. For an explanation of the image formats see the section
 # output formats in the documentation of the dot tool (Graphviz (see:
@@ -2451,10 +2579,10 @@ MSCFILE_DIRS           =
 DIAFILE_DIRS           =
 
 # When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the
-# path where java can find the plantuml.jar file. If left blank, it is assumed
-# PlantUML is not used or called during a preprocessing step. Doxygen will
-# generate a warning when it encounters a \startuml command in this case and
-# will not generate output for the diagram.
+# path where java can find the plantuml.jar file or to the filename of jar file
+# to be used. If left blank, it is assumed PlantUML is not used or called during
+# a preprocessing step. Doxygen will generate a warning when it encounters a
+# \startuml command in this case and will not generate output for the diagram.
 
 PLANTUML_JAR_PATH      =
 
@@ -2516,14 +2644,18 @@ DOT_MULTI_TARGETS      = YES
 # If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
 # explaining the meaning of the various boxes and arrows in the dot generated
 # graphs.
+# Note: This tag requires that UML_LOOK isn't set, i.e. the doxygen internal
+# graphical representation for inheritance and collaboration diagrams is used.
 # The default value is: YES.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
 GENERATE_LEGEND        = YES
 
-# If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate dot
+# If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate
 # files that are used to generate the various graphs.
+#
+# Note: This setting is not only used for dot files but also for msc temporary
+# files.
 # The default value is: YES.
-# This tag requires that the tag HAVE_DOT is set to YES.
 
 DOT_CLEANUP            = YES

phpstan.neon.dist

@@ -4,7 +4,6 @@ includes:
 	- tests/phpstan/configs/impossible-generics.neon
 	- tests/phpstan/configs/php-bugs.neon
 	- tests/phpstan/configs/phpstan-bugs.neon
-	- tests/phpstan/configs/pthreads-bugs.neon
 	- tests/phpstan/configs/runtime-type-checks.neon
 	- tests/phpstan/configs/spl-fixed-array-sucks.neon
 	- vendor/phpstan/phpstan-phpunit/extension.neon
@@ -13,6 +12,7 @@ includes:
 
 rules:
 	- pocketmine\phpstan\rules\DisallowEnumComparisonRule
+	- pocketmine\phpstan\rules\UnsafeForeachArrayOfStringRule
 #	- pocketmine\phpstan\rules\ThreadedSupportedTypesRule
 
 parameters:

resources/pocketmine.yml

@@ -108,7 +108,7 @@ player:
   verify-xuid: true
 
 level-settings:
-  #The default format that levels will use when created
+  #The default format that worlds will use when created
   default-format: leveldb
 
 chunk-sending:
@@ -128,7 +128,9 @@ chunk-ticking:
   blocks-per-subchunk-per-tick: 3
   #IDs of blocks not to perform random ticking on.
   disable-block-ticking:
-    #- 2 # grass
+    #- grass
+    #- ice
+    #- fire
 
 chunk-generation:
   #Max. amount of chunks in the waiting queue to be populated
@@ -171,12 +173,39 @@ console:
   title-tick: true
 
 aliases:
-  #Examples:
-  #showtheversion: version
+  ##This section allows you to add, remove or remap command aliases.
+  ##A single alias can call one or more other commands (or aliases).
+  ##Aliases defined here will override any command aliases declared by plugins or PocketMine-MP itself.
+
+  ##To remove an alias, set it to [], like so (note that prefixed aliases like "pocketmine:stop" will remain and can't
+  ##be removed):
+  #stop: []
+
+  ##Commands are not removed, only their aliases. You can still refer to a command using its full (prefixed)
+  ##name, even if all its aliases are overwritten. The full name is usually something like "pocketmine:commandname" or
+  ##"pluginname:commandname".
+  #abort: [pocketmine:stop]
+
+  ##To add an alias, list the command(s) that it calls:
+  #showtheversion: [version]
   #savestop: [save-all, stop]
 
+  ##To invoke another command with arguments, use $1 to pass the first argument, $2 for the second etc:
+  #giveadmin: [op $1] ## `giveadmin alex` -> `op alex`
+  #kill: [suicide, say "I tried to kill $1"] ## `kill alex` -> `suicide` + `say "I tried to kill alex"`
+  #giverandom: [give $1 $2, say "Someone has just received a $2!"] ## `giverandom alex diamond` -> `give alex diamond` + `say "Someone has just received a diamond!"`
+
+  ##To make arguments mandatory (so that the command fails if they are not provided), use $$, e.g. $$1, $$2:
+  #makeadmin: [op $$1] ## `makeadmin alex` -> `op alex`, `makeadmin` with no arguments = error
+
+  ##To pass through a range of arguments, put a - (hyphen) after the index:
+  #tpalias: [tp $1-] ## `tpalias 256 70 256` -> `tp 256 70 256` - this passes arguments 1 and everything after it to the `tp` command
+
+  ##To change an existing command alias and make it do something else:
+  #tp: [suicide]
+
 worlds:
-  #These settings will override the generator set in server.properties and allows loading multiple levels
+  #These settings will override the generator set in server.properties and allows loading multiple worlds
   #Example:
   #world:
   # seed: 404

src/MemoryManager.php

@@ -28,7 +28,6 @@ use pocketmine\network\mcpe\cache\ChunkCache;
 use pocketmine\scheduler\DumpWorkerMemoryTask;
 use pocketmine\scheduler\GarbageCollectionTask;
 use pocketmine\timings\Timings;
-use pocketmine\utils\AssumptionFailedError;
 use pocketmine\utils\Process;
 use pocketmine\utils\Utils;
 use Webmozart\PathUtil\Path;
@@ -65,13 +64,11 @@ use function sprintf;
 use function strlen;
 use function substr;
 use const JSON_PRETTY_PRINT;
+use const JSON_THROW_ON_ERROR;
 use const JSON_UNESCAPED_SLASHES;
 use const SORT_NUMERIC;
 
 class MemoryManager{
-
-	private Server $server;
-
 	private int $memoryLimit;
 	private int $globalMemoryLimit;
 	private int $checkRate;
@@ -98,8 +95,9 @@ class MemoryManager{
 
 	private \Logger $logger;
 
-	public function __construct(Server $server){
-		$this->server = $server;
+	public function __construct(
+		private Server $server
+	){
 		$this->logger = new \PrefixedLogger($server->getLogger(), "Memory Manager");
 
 		$this->init($server->getConfigGroup());
@@ -168,14 +166,14 @@ class MemoryManager{
 	}
 
 	public function canUseChunkCache() : bool{
-		return !$this->lowMemory or !$this->lowMemDisableChunkCache;
+		return !$this->lowMemory || !$this->lowMemDisableChunkCache;
 	}
 
 	/**
 	 * Returns the allowed chunk radius based on the current memory usage.
 	 */
 	public function getViewDistance(int $distance) : int{
-		return ($this->lowMemory and $this->lowMemChunkRadiusOverride > 0) ? min($this->lowMemChunkRadiusOverride, $distance) : $distance;
+		return ($this->lowMemory && $this->lowMemChunkRadiusOverride > 0) ? min($this->lowMemChunkRadiusOverride, $distance) : $distance;
 	}
 
 	/**
@@ -214,18 +212,18 @@ class MemoryManager{
 	public function check() : void{
 		Timings::$memoryManager->startTiming();
 
-		if(($this->memoryLimit > 0 or $this->globalMemoryLimit > 0) and ++$this->checkTicker >= $this->checkRate){
+		if(($this->memoryLimit > 0 || $this->globalMemoryLimit > 0) && ++$this->checkTicker >= $this->checkRate){
 			$this->checkTicker = 0;
 			$memory = Process::getAdvancedMemoryUsage();
 			$trigger = false;
-			if($this->memoryLimit > 0 and $memory[0] > $this->memoryLimit){
+			if($this->memoryLimit > 0 && $memory[0] > $this->memoryLimit){
 				$trigger = 0;
-			}elseif($this->globalMemoryLimit > 0 and $memory[1] > $this->globalMemoryLimit){
+			}elseif($this->globalMemoryLimit > 0 && $memory[1] > $this->globalMemoryLimit){
 				$trigger = 1;
 			}
 
 			if($trigger !== false){
-				if($this->lowMemory and $this->continuousTrigger){
+				if($this->lowMemory && $this->continuousTrigger){
 					if(++$this->continuousTriggerTicker >= $this->continuousTriggerRate){
 						$this->continuousTriggerTicker = 0;
 						$this->trigger($memory[$trigger], $this->memoryLimit, $trigger > 0, ++$this->continuousTriggerCount);
@@ -240,7 +238,7 @@ class MemoryManager{
 			}
 		}
 
-		if($this->garbageCollectionPeriod > 0 and ++$this->garbageCollectionTicker >= $this->garbageCollectionPeriod){
+		if($this->garbageCollectionPeriod > 0 && ++$this->garbageCollectionTicker >= $this->garbageCollectionPeriod){
 			$this->garbageCollectionTicker = 0;
 			$this->triggerGarbageCollector();
 		}
@@ -291,8 +289,7 @@ class MemoryManager{
 	 * @param mixed   $startingObject
 	 */
 	public static function dumpMemory($startingObject, string $outputFolder, int $maxNesting, int $maxStringSize, \Logger $logger) : void{
-		$hardLimit = ini_get('memory_limit');
-		if($hardLimit === false) throw new AssumptionFailedError("memory_limit INI directive should always exist");
+		$hardLimit = Utils::assumeNotFalse(ini_get('memory_limit'), "memory_limit INI directive should always exist");
 		ini_set('memory_limit', '-1');
 		gc_disable();
 
@@ -300,7 +297,7 @@ class MemoryManager{
 			mkdir($outputFolder, 0777, true);
 		}
 
-		$obData = fopen(Path::join($outputFolder, "objects.js"), "wb+");
+		$obData = Utils::assumeNotFalse(fopen(Path::join($outputFolder, "objects.js"), "wb+"));
 
 		$objects = [];
 
@@ -318,13 +315,16 @@ class MemoryManager{
 			$reflection = new \ReflectionClass($className);
 			$staticProperties[$className] = [];
 			foreach($reflection->getProperties() as $property){
-				if(!$property->isStatic() or $property->getDeclaringClass()->getName() !== $className){
+				if(!$property->isStatic() || $property->getDeclaringClass()->getName() !== $className){
 					continue;
 				}
 
 				if(!$property->isPublic()){
 					$property->setAccessible(true);
 				}
+				if(!$property->isInitialized()){
+					continue;
+				}
 
 				$staticCount++;
 				$staticProperties[$className][$property->getName()] = self::continueDump($property->getValue(), $objects, $refCounts, 0, $maxNesting, $maxStringSize);
@@ -349,38 +349,36 @@ class MemoryManager{
 			}
 		}
 
-		file_put_contents(Path::join($outputFolder, "staticProperties.js"), json_encode($staticProperties, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
+		file_put_contents(Path::join($outputFolder, "staticProperties.js"), json_encode($staticProperties, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
 		$logger->info("Wrote $staticCount static properties");
 
-		if(isset($GLOBALS)){ //This might be null if we're on a different thread
-			$globalVariables = [];
-			$globalCount = 0;
+		$globalVariables = [];
+		$globalCount = 0;
 
-			$ignoredGlobals = [
-				'GLOBALS' => true,
-				'_SERVER' => true,
-				'_REQUEST' => true,
-				'_POST' => true,
-				'_GET' => true,
-				'_FILES' => true,
-				'_ENV' => true,
-				'_COOKIE' => true,
-				'_SESSION' => true
-			];
+		$ignoredGlobals = [
+			'GLOBALS' => true,
+			'_SERVER' => true,
+			'_REQUEST' => true,
+			'_POST' => true,
+			'_GET' => true,
+			'_FILES' => true,
+			'_ENV' => true,
+			'_COOKIE' => true,
+			'_SESSION' => true
+		];
 
-			foreach($GLOBALS as $varName => $value){
-				if(isset($ignoredGlobals[$varName])){
-					continue;
-				}
-
-				$globalCount++;
-				$globalVariables[$varName] = self::continueDump($value, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
+		foreach(Utils::stringifyKeys($GLOBALS) as $varName => $value){
+			if(isset($ignoredGlobals[$varName])){
+				continue;
 			}
 
-			file_put_contents(Path::join($outputFolder, "globalVariables.js"), json_encode($globalVariables, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
-			$logger->info("Wrote $globalCount global variables");
+			$globalCount++;
+			$globalVariables[$varName] = self::continueDump($value, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
 		}
 
+		file_put_contents(Path::join($outputFolder, "globalVariables.js"), json_encode($globalVariables, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
+		$logger->info("Wrote $globalCount global variables");
+
 		foreach(get_defined_functions()["user"] as $function){
 			$reflect = new \ReflectionFunction($function);
 
@@ -393,7 +391,7 @@ class MemoryManager{
 				$functionStaticVarsCount += count($vars);
 			}
 		}
-		file_put_contents(Path::join($outputFolder, 'functionStaticVars.js'), json_encode($functionStaticVars, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
+		file_put_contents(Path::join($outputFolder, 'functionStaticVars.js'), json_encode($functionStaticVars, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
 		$logger->info("Wrote $functionStaticVarsCount function static variables");
 
 		$data = self::continueDump($startingObject, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
@@ -450,13 +448,16 @@ class MemoryManager{
 							if(!$property->isPublic()){
 								$property->setAccessible(true);
 							}
+							if(!$property->isInitialized($object)){
+								continue;
+							}
 
 							$info["properties"][$name] = self::continueDump($property->getValue($object), $objects, $refCounts, 0, $maxNesting, $maxStringSize);
 						}
 					}
 				}
 
-				fwrite($obData, json_encode($info, JSON_UNESCAPED_SLASHES) . "\n");
+				fwrite($obData, json_encode($info, JSON_UNESCAPED_SLASHES | JSON_THROW_ON_ERROR) . "\n");
 			}
 
 		}while($continue);
@@ -465,11 +466,11 @@ class MemoryManager{
 
 		fclose($obData);
 
-		file_put_contents(Path::join($outputFolder, "serverEntry.js"), json_encode($data, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
-		file_put_contents(Path::join($outputFolder, "referenceCounts.js"), json_encode($refCounts, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
+		file_put_contents(Path::join($outputFolder, "serverEntry.js"), json_encode($data, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
+		file_put_contents(Path::join($outputFolder, "referenceCounts.js"), json_encode($refCounts, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
 
 		arsort($instanceCounts, SORT_NUMERIC);
-		file_put_contents(Path::join($outputFolder, "instanceCounts.js"), json_encode($instanceCounts, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
+		file_put_contents(Path::join($outputFolder, "instanceCounts.js"), json_encode($instanceCounts, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_THROW_ON_ERROR));
 
 		$logger->info("Finished!");
 
@@ -505,8 +506,13 @@ class MemoryManager{
 				return "(error) ARRAY RECURSION LIMIT REACHED";
 			}
 			$data = [];
+			$numeric = 0;
 			foreach($from as $key => $value){
-				$data[$key] = self::continueDump($value, $objects, $refCounts, $recursion + 1, $maxNesting, $maxStringSize);
+				$data[$numeric] = [
+					"k" => self::continueDump($key, $objects, $refCounts, $recursion + 1, $maxNesting, $maxStringSize),
+					"v" => self::continueDump($value, $objects, $refCounts, $recursion + 1, $maxNesting, $maxStringSize),
+				];
+				$numeric++;
 			}
 		}elseif(is_string($from)){
 			$data = "(string) len(" . strlen($from) . ") " . substr(Utils::printable($from), 0, $maxStringSize);

src/PocketMine.php

@@ -32,13 +32,16 @@ namespace pocketmine {
 	use pocketmine\utils\ServerKiller;
 	use pocketmine\utils\Terminal;
 	use pocketmine\utils\Timezone;
+	use pocketmine\utils\Utils;
 	use pocketmine\wizard\SetupWizard;
 	use Webmozart\PathUtil\Path;
+	use function defined;
 	use function extension_loaded;
+	use function getcwd;
 	use function phpversion;
 	use function preg_match;
 	use function preg_quote;
-	use function strpos;
+	use function realpath;
 	use function version_compare;
 
 	require_once __DIR__ . '/VersionInfo.php';
@@ -111,8 +114,7 @@ namespace pocketmine {
 			}
 		}
 
-		if(extension_loaded("pthreads")){
-			$pthreads_version = phpversion("pthreads");
+		if(($pthreads_version = phpversion("pthreads")) !== false){
 			if(substr_count($pthreads_version, ".") < 2){
 				$pthreads_version = "0.$pthreads_version";
 			}
@@ -121,8 +123,7 @@ namespace pocketmine {
 			}
 		}
 
-		if(extension_loaded("leveldb")){
-			$leveldb_version = phpversion("leveldb");
+		if(($leveldb_version = phpversion("leveldb")) !== false){
 			if(version_compare($leveldb_version, "0.2.1") < 0){
 				$messages[] = "php-leveldb >= 0.2.1 is required, while you have $leveldb_version.";
 			}
@@ -145,6 +146,10 @@ namespace pocketmine {
 			$messages[] = "The native PocketMine extension is no longer supported.";
 		}
 
+		if(!defined('AF_INET6')){
+			$messages[] = "IPv6 support is required, but your PHP binary was built without IPv6 support.";
+		}
+
 		return $messages;
 	}
 
@@ -208,6 +213,8 @@ JIT_WARNING
 			}
 			critical_error("PHP binary used: " . $binary);
 			critical_error("Loaded php.ini: " . (($file = php_ini_loaded_file()) !== false ? $file : "none"));
+			$phprc = getenv("PHPRC");
+			critical_error("Value of PHPRC environment variable: " . ($phprc === false ? "" : $phprc));
 			critical_error("Please recompile PHP with the needed configuration, or refer to the installation instructions at http://pmmp.rtfd.io/en/rtfd/installation.html.");
 			echo PHP_EOL;
 			exit(1);
@@ -246,8 +253,9 @@ JIT_WARNING
 
 		$opts = getopt("", ["data:", "plugins:", "no-wizard", "enable-ansi", "disable-ansi"]);
 
-		$dataPath = isset($opts["data"]) ? $opts["data"] . DIRECTORY_SEPARATOR : realpath(getcwd()) . DIRECTORY_SEPARATOR;
-		$pluginPath = isset($opts["plugins"]) ? $opts["plugins"] . DIRECTORY_SEPARATOR : realpath(getcwd()) . DIRECTORY_SEPARATOR . "plugins" . DIRECTORY_SEPARATOR;
+		$cwd = Utils::assumeNotFalse(realpath(Utils::assumeNotFalse(getcwd())));
+		$dataPath = isset($opts["data"]) ? $opts["data"] . DIRECTORY_SEPARATOR : $cwd . DIRECTORY_SEPARATOR;
+		$pluginPath = isset($opts["plugins"]) ? $opts["plugins"] . DIRECTORY_SEPARATOR : $cwd . DIRECTORY_SEPARATOR . "plugins" . DIRECTORY_SEPARATOR;
 		Filesystem::addCleanedPath($pluginPath, Filesystem::CLEAN_PATH_PLUGINS_PREFIX);
 
 		if(!file_exists($dataPath)){
@@ -279,7 +287,7 @@ JIT_WARNING
 
 		$exitCode = 0;
 		do{
-			if(!file_exists(Path::join($dataPath, "server.properties")) and !isset($opts["no-wizard"])){
+			if(!file_exists(Path::join($dataPath, "server.properties")) && !isset($opts["no-wizard"])){
 				$installer = new SetupWizard($dataPath);
 				if(!$installer->run()){
 					$exitCode = -1;

src/Server.php

@@ -35,7 +35,7 @@ use pocketmine\console\ConsoleReaderThread;
 use pocketmine\crafting\CraftingManager;
 use pocketmine\crafting\CraftingManagerFromDataHelper;
 use pocketmine\crash\CrashDump;
-use pocketmine\data\java\GameModeIdMap;
+use pocketmine\crash\CrashDumpRenderer;
 use pocketmine\entity\EntityDataHelper;
 use pocketmine\entity\Location;
 use pocketmine\event\HandlerListManager;
@@ -121,13 +121,19 @@ use function base64_encode;
 use function cli_set_process_title;
 use function copy;
 use function count;
+use function date;
+use function fclose;
 use function file_exists;
 use function file_get_contents;
 use function file_put_contents;
 use function filemtime;
+use function fopen;
 use function get_class;
 use function ini_set;
 use function is_array;
+use function is_dir;
+use function is_object;
+use function is_resource;
 use function is_string;
 use function json_decode;
 use function max;
@@ -172,6 +178,12 @@ class Server{
 	public const BROADCAST_CHANNEL_ADMINISTRATIVE = "pocketmine.broadcast.admin";
 	public const BROADCAST_CHANNEL_USERS = "pocketmine.broadcast.user";
 
+	public const DEFAULT_SERVER_NAME = VersionInfo::NAME . " Server";
+	public const DEFAULT_MAX_PLAYERS = 20;
+	public const DEFAULT_PORT_IPV4 = 19132;
+	public const DEFAULT_PORT_IPV6 = 19133;
+	public const DEFAULT_MAX_VIEW_DISTANCE = 16;
+
 	private static ?Server $instance = null;
 
 	private SleeperHandler $tickSleeper;
@@ -211,8 +223,6 @@ class Server{
 
 	private int $sendUsageTicker = 0;
 
-	private \AttachableThreadedLogger $logger;
-
 	private MemoryManager $memoryManager;
 
 	private ConsoleReaderThread $console;
@@ -237,7 +247,6 @@ class Server{
 
 	private UuidInterface $serverID;
 
-	private \DynamicClassLoader $autoloader;
 	private string $dataPath;
 	private string $pluginPath;
 
@@ -318,11 +327,15 @@ class Server{
 	}
 
 	public function getPort() : int{
-		return $this->configGroup->getConfigInt("server-port", 19132);
+		return $this->configGroup->getConfigInt("server-port", self::DEFAULT_PORT_IPV4);
+	}
+
+	public function getPortV6() : int{
+		return $this->configGroup->getConfigInt("server-portv6", self::DEFAULT_PORT_IPV6);
 	}
 
 	public function getViewDistance() : int{
-		return max(2, $this->configGroup->getConfigInt("view-distance", 8));
+		return max(2, $this->configGroup->getConfigInt("view-distance", self::DEFAULT_MAX_VIEW_DISTANCE));
 	}
 
 	/**
@@ -337,12 +350,17 @@ class Server{
 		return $str !== "" ? $str : "0.0.0.0";
 	}
 
+	public function getIpV6() : string{
+		$str = $this->configGroup->getConfigString("server-ipv6");
+		return $str !== "" ? $str : "::";
+	}
+
 	public function getServerUniqueId() : UuidInterface{
 		return $this->serverID;
 	}
 
 	public function getGamemode() : GameMode{
-		return GameModeIdMap::getInstance()->fromId($this->configGroup->getConfigInt("gamemode", 0)) ?? GameMode::SURVIVAL();
+		return GameMode::fromString($this->configGroup->getConfigString("gamemode", GameMode::SURVIVAL()->name())) ?? GameMode::SURVIVAL();
 	}
 
 	public function getForceGamemode() : bool{
@@ -365,7 +383,7 @@ class Server{
 	}
 
 	public function getMotd() : string{
-		return $this->configGroup->getConfigString("motd", VersionInfo::NAME . " Server");
+		return $this->configGroup->getConfigString("motd", self::DEFAULT_SERVER_NAME);
 	}
 
 	public function getLoader() : \DynamicClassLoader{
@@ -522,9 +540,10 @@ class Server{
 		if(!$ev->isCancelled()){
 			Timings::$syncPlayerDataSave->time(function() use ($name, $ev) : void{
 				$nbt = new BigEndianNbtSerializer();
+				$contents = Utils::assumeNotFalse(zlib_encode($nbt->write(new TreeRoot($ev->getSaveData())), ZLIB_ENCODING_GZIP), "zlib_encode() failed unexpectedly");
 				try{
-					file_put_contents($this->getPlayerDataPath($name), zlib_encode($nbt->write(new TreeRoot($ev->getSaveData())), ZLIB_ENCODING_GZIP));
-				}catch(\ErrorException $e){
+					Filesystem::safeFilePutContents($this->getPlayerDataPath($name), $contents);
+				}catch(\RuntimeException $e){
 					$this->logger->critical($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_data_saveError($name, $e->getMessage())));
 					$this->logger->logException($e);
 				}
@@ -540,7 +559,7 @@ class Server{
 		$ev->call();
 		$class = $ev->getPlayerClass();
 
-		if($offlinePlayerData !== null and ($world = $this->worldManager->getWorldByName($offlinePlayerData->getString("Level", ""))) !== null){
+		if($offlinePlayerData !== null && ($world = $this->worldManager->getWorldByName($offlinePlayerData->getString("Level", ""))) !== null){
 			$playerPos = EntityDataHelper::parseLocation($offlinePlayerData, $world);
 			$spawn = $playerPos->asVector3();
 		}else{
@@ -675,7 +694,13 @@ class Server{
 	}
 
 	public function removeOp(string $name) : void{
-		$this->operators->remove(strtolower($name));
+		$lowercaseName = strtolower($name);
+		foreach($this->operators->getAll() as $operatorName => $_){
+			$operatorName = (string) $operatorName;
+			if($lowercaseName === strtolower($operatorName)){
+				$this->operators->remove($operatorName);
+			}
+		}
 
 		if(($player = $this->getPlayerExact($name)) !== null){
 			$player->unsetBasePermission(DefaultPermissions::ROOT_OPERATOR);
@@ -694,7 +719,7 @@ class Server{
 	}
 
 	public function isWhitelisted(string $name) : bool{
-		return !$this->hasWhitelist() or $this->operators->exists($name, true) or $this->whitelist->exists($name, true);
+		return !$this->hasWhitelist() || $this->operators->exists($name, true) || $this->whitelist->exists($name, true);
 	}
 
 	public function isOp(string $name) : bool{
@@ -738,7 +763,12 @@ class Server{
 		return self::$instance;
 	}
 
-	public function __construct(\DynamicClassLoader $autoloader, \AttachableThreadedLogger $logger, string $dataPath, string $pluginPath){
+	public function __construct(
+		private \DynamicClassLoader $autoloader,
+		private \AttachableThreadedLogger $logger,
+		string $dataPath,
+		string $pluginPath
+	){
 		if(self::$instance !== null){
 			throw new \LogicException("Only one server instance can exist at once");
 		}
@@ -746,8 +776,6 @@ class Server{
 		$this->startTime = microtime(true);
 
 		$this->tickSleeper = new SleeperHandler();
-		$this->autoloader = $autoloader;
-		$this->logger = $logger;
 
 		$this->signalHandler = new SignalHandler(function() : void{
 			$this->logger->info("Received signal interrupt, stopping the server");
@@ -772,7 +800,7 @@ class Server{
 			$this->logger->info("Loading server configuration");
 			$pocketmineYmlPath = Path::join($this->dataPath, "pocketmine.yml");
 			if(!file_exists($pocketmineYmlPath)){
-				$content = file_get_contents(Path::join(\pocketmine\RESOURCE_PATH, "pocketmine.yml"));
+				$content = Utils::assumeNotFalse(file_get_contents(Path::join(\pocketmine\RESOURCE_PATH, "pocketmine.yml")), "Missing required resource file");
 				if(VersionInfo::IS_DEVELOPMENT_BUILD){
 					$content = str_replace("preferred-channel: stable", "preferred-channel: beta", $content);
 				}
@@ -782,11 +810,13 @@ class Server{
 			$this->configGroup = new ServerConfigGroup(
 				new Config($pocketmineYmlPath, Config::YAML, []),
 				new Config(Path::join($this->dataPath, "server.properties"), Config::PROPERTIES, [
-					"motd" => VersionInfo::NAME . " Server",
-					"server-port" => 19132,
+					"motd" => self::DEFAULT_SERVER_NAME,
+					"server-port" => self::DEFAULT_PORT_IPV4,
+					"server-portv6" => self::DEFAULT_PORT_IPV6,
+					"enable-ipv6" => true,
 					"white-list" => false,
-					"max-players" => 20,
-					"gamemode" => 0,
+					"max-players" => self::DEFAULT_MAX_PLAYERS,
+					"gamemode" => GameMode::SURVIVAL()->name(),
 					"force-gamemode" => false,
 					"hardcore" => false,
 					"pvp" => true,
@@ -797,7 +827,7 @@ class Server{
 					"level-type" => "DEFAULT",
 					"enable-query" => true,
 					"auto-save" => true,
-					"view-distance" => 8,
+					"view-distance" => self::DEFAULT_MAX_VIEW_DISTANCE,
 					"xbox-auth" => true,
 					"language" => "eng"
 				])
@@ -866,7 +896,7 @@ class Server{
 			}
 
 			$netCompressionLevel = $this->configGroup->getPropertyInt("network.compression-level", 6);
-			if($netCompressionLevel < 1 or $netCompressionLevel > 9){
+			if($netCompressionLevel < 1 || $netCompressionLevel > 9){
 				$this->logger->warning("Invalid network compression level $netCompressionLevel set, setting to default 6");
 				$netCompressionLevel = 6;
 			}
@@ -883,7 +913,7 @@ class Server{
 
 			$bannedTxt = Path::join($this->dataPath, "banned.txt");
 			$bannedPlayersTxt = Path::join($this->dataPath, "banned-players.txt");
-			if(file_exists($bannedTxt) and !file_exists($bannedPlayersTxt)){
+			if(file_exists($bannedTxt) && !file_exists($bannedPlayersTxt)){
 				@rename($bannedTxt, $bannedPlayersTxt);
 			}
 			@touch($bannedPlayersTxt);
@@ -894,7 +924,7 @@ class Server{
 			$this->banByIP = new BanList($bannedIpsTxt);
 			$this->banByIP->load();
 
-			$this->maxPlayers = $this->configGroup->getConfigInt("max-players", 20);
+			$this->maxPlayers = $this->configGroup->getConfigInt("max-players", self::DEFAULT_MAX_PLAYERS);
 
 			$this->onlineMode = $this->configGroup->getConfigBool("xbox-auth", true);
 			if($this->onlineMode){
@@ -905,7 +935,7 @@ class Server{
 				$this->logger->warning($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_authProperty_disabled()));
 			}
 
-			if($this->configGroup->getConfigBool("hardcore", false) and $this->getDifficulty() < World::DIFFICULTY_HARD){
+			if($this->configGroup->getConfigBool("hardcore", false) && $this->getDifficulty() < World::DIFFICULTY_HARD){
 				$this->configGroup->setConfigInt("difficulty", World::DIFFICULTY_HARD);
 			}
 
@@ -955,7 +985,7 @@ class Server{
 
 			$providerManager = new WorldProviderManager();
 			if(
-				($format = $providerManager->getProviderByName($formatName = $this->configGroup->getPropertyString("level-settings.default-format", ""))) !== null and
+				($format = $providerManager->getProviderByName($formatName = $this->configGroup->getPropertyString("level-settings.default-format", ""))) !== null &&
 				$format instanceof WritableWorldProviderManagerEntry
 			){
 				$providerManager->setDefault($format);
@@ -973,13 +1003,29 @@ class Server{
 
 			register_shutdown_function([$this, "crashDump"]);
 
-			$this->pluginManager->loadPlugins($this->pluginPath);
-			$this->enablePlugins(PluginEnableOrder::STARTUP());
-
-			if(!$this->startupPrepareWorlds()){
+			$loadErrorCount = 0;
+			$this->pluginManager->loadPlugins($this->pluginPath, $loadErrorCount);
+			if($loadErrorCount > 0){
+				$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_plugin_someLoadErrors()));
+				$this->forceShutdown();
+				return;
+			}
+			if(!$this->enablePlugins(PluginEnableOrder::STARTUP())){
+				$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_plugin_someEnableErrors()));
+				$this->forceShutdown();
+				return;
+			}
+
+			if(!$this->startupPrepareWorlds()){
+				$this->forceShutdown();
+				return;
+			}
+
+			if(!$this->enablePlugins(PluginEnableOrder::POSTWORLD())){
+				$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_plugin_someEnableErrors()));
+				$this->forceShutdown();
 				return;
 			}
-			$this->enablePlugins(PluginEnableOrder::POSTWORLD());
 
 			if(!$this->startupPrepareNetworkInterfaces()){
 				$this->forceShutdown();
@@ -1043,13 +1089,21 @@ class Server{
 			return $generatorEntry->getGeneratorClass();
 		};
 
+		$anyWorldFailedToLoad = false;
+
 		foreach((array) $this->configGroup->getProperty("worlds", []) as $name => $options){
 			if($options === null){
 				$options = [];
 			}elseif(!is_array($options)){
+				//TODO: this probably should be an error
 				continue;
 			}
-			if(!$this->worldManager->loadWorld($name, true) && !$this->worldManager->isWorldGenerated($name)){
+			if(!$this->worldManager->loadWorld($name, true)){
+				if($this->worldManager->isWorldGenerated($name)){
+					//allow checking if other worlds are loadable, so the user gets all the errors in one go
+					$anyWorldFailedToLoad = true;
+					continue;
+				}
 				$creationOptions = WorldCreationOptions::create();
 				//TODO: error checking
 
@@ -1058,11 +1112,13 @@ class Server{
 
 				$generatorClass = $getGenerator($generatorName, $generatorOptions, $name);
 				if($generatorClass === null){
+					$anyWorldFailedToLoad = true;
 					continue;
 				}
 				$creationOptions->setGeneratorClass($generatorClass);
 				$creationOptions->setGeneratorOptions($generatorOptions);
 
+				$creationOptions->setDifficulty($this->getDifficulty());
 				if(isset($options["difficulty"]) && is_string($options["difficulty"])){
 					$creationOptions->setDifficulty(World::getDifficultyFromString($options["difficulty"]));
 				}
@@ -1085,54 +1141,79 @@ class Server{
 				$default = "world";
 				$this->configGroup->setConfigString("level-name", "world");
 			}
-			if(!$this->worldManager->loadWorld($default, true) && !$this->worldManager->isWorldGenerated($default)){
+			if(!$this->worldManager->loadWorld($default, true)){
+				if($this->worldManager->isWorldGenerated($default)){
+					$this->getLogger()->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_level_defaultError()));
+
+					return false;
+				}
 				$generatorName = $this->configGroup->getConfigString("level-type");
 				$generatorOptions = $this->configGroup->getConfigString("generator-settings");
 				$generatorClass = $getGenerator($generatorName, $generatorOptions, $default);
-				if($generatorClass !== null){
-					$creationOptions = WorldCreationOptions::create()
-						->setGeneratorClass($generatorClass)
-						->setGeneratorOptions($generatorOptions);
-					$convertedSeed = Generator::convertSeed($this->configGroup->getConfigString("level-seed"));
-					if($convertedSeed !== null){
-						$creationOptions->setSeed($convertedSeed);
-					}
-					$this->worldManager->generateWorld($default, $creationOptions);
+
+				if($generatorClass === null){
+					$this->getLogger()->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_level_defaultError()));
+					return false;
 				}
+				$creationOptions = WorldCreationOptions::create()
+					->setGeneratorClass($generatorClass)
+					->setGeneratorOptions($generatorOptions);
+				$convertedSeed = Generator::convertSeed($this->configGroup->getConfigString("level-seed"));
+				if($convertedSeed !== null){
+					$creationOptions->setSeed($convertedSeed);
+				}
+				$creationOptions->setDifficulty($this->getDifficulty());
+				$this->worldManager->generateWorld($default, $creationOptions);
 			}
 
 			$world = $this->worldManager->getWorldByName($default);
 			if($world === null){
-				$this->getLogger()->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_level_defaultError()));
-				$this->forceShutdown();
-
-				return false;
+				throw new AssumptionFailedError("We just loaded/generated the default world, so it must exist");
 			}
 			$this->worldManager->setDefaultWorld($world);
 		}
 
+		return !$anyWorldFailedToLoad;
+	}
+
+	private function startupPrepareConnectableNetworkInterfaces(string $ip, int $port, bool $ipV6, bool $useQuery) : bool{
+		$prettyIp = $ipV6 ? "[$ip]" : $ip;
+		try{
+			$rakLibRegistered = $this->network->registerInterface(new RakLibInterface($this, $ip, $port, $ipV6));
+		}catch(NetworkInterfaceStartException $e){
+			$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_server_networkStartFailed(
+				$ip,
+				(string) $port,
+				$e->getMessage()
+			)));
+			return false;
+		}
+		if($rakLibRegistered){
+			$this->logger->info($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_networkStart($prettyIp, (string) $port)));
+		}
+		if($useQuery){
+			if(!$rakLibRegistered){
+				//RakLib would normally handle the transport for Query packets
+				//if it's not registered we need to make sure Query still works
+				$this->network->registerInterface(new DedicatedQueryNetworkInterface($ip, $port, $ipV6, new \PrefixedLogger($this->logger, "Dedicated Query Interface")));
+			}
+			$this->logger->info($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_query_running($prettyIp, (string) $port)));
+		}
 		return true;
 	}
 
 	private function startupPrepareNetworkInterfaces() : bool{
 		$useQuery = $this->configGroup->getConfigBool("enable-query", true);
 
-		try{
-			$rakLibRegistered = $this->network->registerInterface(new RakLibInterface($this));
-		}catch(NetworkInterfaceStartException $e){
-			$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_server_networkStartFailed(
-				$this->getIp(),
-				(string) $this->getPort(),
-				$e->getMessage()
-			)));
+		if(
+			!$this->startupPrepareConnectableNetworkInterfaces($this->getIp(), $this->getPort(), false, $useQuery) ||
+			(
+				$this->configGroup->getConfigBool("enable-ipv6", true) &&
+				!$this->startupPrepareConnectableNetworkInterfaces($this->getIpV6(), $this->getPortV6(), true, $useQuery)
+			)
+		){
 			return false;
 		}
-		if(!$rakLibRegistered && $useQuery){
-			//RakLib would normally handle the transport for Query packets
-			//if it's not registered we need to make sure Query still works
-			$this->network->registerInterface(new DedicatedQueryNetworkInterface($this->getIp(), $this->getPort(), new \PrefixedLogger($this->logger, "Dedicated Query Interface")));
-		}
-		$this->logger->info($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_networkStart($this->getIp(), (string) $this->getPort())));
 
 		if($useQuery){
 			$this->network->registerRawPacketHandler(new QueryHandler($this));
@@ -1173,7 +1254,7 @@ class Server{
 	 * Unsubscribes from all broadcast channels.
 	 */
 	public function unsubscribeFromAllBroadcastChannels(CommandSender $subscriber) : void{
-		foreach($this->broadcastSubscribers as $channelId => $recipients){
+		foreach(Utils::stringifyKeys($this->broadcastSubscribers) as $channelId => $recipients){
 			$this->unsubscribeFromBroadcastChannel($channelId, $subscriber);
 		}
 	}
@@ -1331,16 +1412,21 @@ class Server{
 		}
 	}
 
-	public function enablePlugins(PluginEnableOrder $type) : void{
+	public function enablePlugins(PluginEnableOrder $type) : bool{
+		$allSuccess = true;
 		foreach($this->pluginManager->getPlugins() as $plugin){
-			if(!$plugin->isEnabled() and $plugin->getDescription()->getOrder()->equals($type)){
-				$this->pluginManager->enablePlugin($plugin);
+			if(!$plugin->isEnabled() && $plugin->getDescription()->getOrder()->equals($type)){
+				if(!$this->pluginManager->enablePlugin($plugin)){
+					$allSuccess = false;
+				}
 			}
 		}
 
 		if($type->equals(PluginEnableOrder::POSTWORLD())){
 			$this->commandMap->registerServerAliases();
 		}
+
+		return $allSuccess;
 	}
 
 	/**
@@ -1379,6 +1465,9 @@ class Server{
 			echo "\x1b]0;\x07";
 		}
 
+		if($this->isRunning){
+			$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_server_forcingShutdown()));
+		}
 		try{
 			if(!$this->isRunning()){
 				$this->sendUsage(SendUsageTask::TYPE_CLOSE);
@@ -1477,6 +1566,25 @@ class Server{
 		$this->crashDump();
 	}
 
+	private function writeCrashDumpFile(CrashDump $dump) : string{
+		$crashFolder = Path::join($this->getDataPath(), "crashdumps");
+		if(!is_dir($crashFolder)){
+			mkdir($crashFolder);
+		}
+		$crashDumpPath = Path::join($crashFolder, date("D_M_j-H.i.s-T_Y", (int) $dump->getData()->time) . ".log");
+
+		$fp = @fopen($crashDumpPath, "wb");
+		if(!is_resource($fp)){
+			throw new \RuntimeException("Unable to open new file to generate crashdump");
+		}
+		$writer = new CrashDumpRenderer($fp, $dump->getData());
+		$writer->renderHumanReadable();
+		$dump->encodeData($writer);
+
+		fclose($fp);
+		return $crashDumpPath;
+	}
+
 	public function crashDump() : void{
 		while(@ob_end_flush()){}
 		if(!$this->isRunning){
@@ -1493,14 +1601,17 @@ class Server{
 			$this->logger->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_crash_create()));
 			$dump = new CrashDump($this, $this->pluginManager ?? null);
 
-			$this->logger->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_crash_submit($dump->getPath())));
+			$crashDumpPath = $this->writeCrashDumpFile($dump);
+
+			$this->logger->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_crash_submit($crashDumpPath)));
 
 			if($this->configGroup->getPropertyBool("auto-report.enabled", true)){
 				$report = true;
 
 				$stamp = Path::join($this->getDataPath(), "crashdumps", ".last_crash");
 				$crashInterval = 120; //2 minutes
-				if(file_exists($stamp) and !($report = (filemtime($stamp) + $crashInterval < time()))){
+				if(($lastReportTime = @filemtime($stamp)) !== false && $lastReportTime + $crashInterval >= time()){
+					$report = false;
 					$this->logger->debug("Not sending crashdump due to last crash less than $crashInterval seconds ago");
 				}
 				@touch($stamp); //update file timestamp
@@ -1508,7 +1619,7 @@ class Server{
 				$plugin = $dump->getData()->plugin;
 				if($plugin !== ""){
 					$p = $this->pluginManager->getPlugin($plugin);
-					if($p instanceof Plugin and !($p->getPluginLoader() instanceof PharPluginLoader)){
+					if($p instanceof Plugin && !($p->getPluginLoader() instanceof PharPluginLoader)){
 						$this->logger->debug("Not sending crashdump due to caused by non-phar plugin");
 						$report = false;
 					}
@@ -1518,7 +1629,7 @@ class Server{
 					$report = false;
 				}
 
-				if(strrpos(VersionInfo::GIT_HASH(), "-dirty") !== false or VersionInfo::GIT_HASH() === str_repeat("00", 20)){
+				if(strrpos(VersionInfo::GIT_HASH(), "-dirty") !== false || VersionInfo::GIT_HASH() === str_repeat("00", 20)){
 					$this->logger->debug("Not sending crashdump due to locally modified");
 					$report = false; //Don't send crashdumps for locally modified builds
 				}
@@ -1533,8 +1644,8 @@ class Server{
 						"reportPaste" => base64_encode($dump->getEncodedData())
 					], 10, [], $postUrlError);
 
-					if($reply !== null and ($data = json_decode($reply->getBody())) !== null){
-						if(isset($data->crashId) and isset($data->crashUrl)){
+					if($reply !== null && is_object($data = json_decode($reply->getBody()))){
+						if(isset($data->crashId) && isset($data->crashUrl)){
 							$reportId = $data->crashId;
 							$reportUrl = $data->crashUrl;
 							$this->logger->emergency($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_crash_archive($reportUrl, (string) $reportId)));
@@ -1591,7 +1702,7 @@ class Server{
 	public function addOnlinePlayer(Player $player) : bool{
 		$ev = new PlayerLoginEvent($player, "Plugin reason");
 		$ev->call();
-		if($ev->isCancelled() or !$player->isConnected()){
+		if($ev->isCancelled() || !$player->isConnected()){
 			$player->disconnect($ev->getKickMessage());
 
 			return false;
@@ -1720,7 +1831,7 @@ class Server{
 			$this->network->getBandwidthTracker()->rotateAverageHistory();
 		}
 
-		if($this->sendUsageTicker > 0 and --$this->sendUsageTicker === 0){
+		if($this->sendUsageTicker > 0 && --$this->sendUsageTicker === 0){
 			$this->sendUsageTicker = 6000;
 			$this->sendUsage(SendUsageTask::TYPE_STATUS);
 		}

src/ServerConfigGroup.php

@@ -32,22 +32,16 @@ use function is_string;
 use function strtolower;
 
 final class ServerConfigGroup{
-
-	/** @var Config */
-	private $pocketmineYml;
-	/** @var Config */
-	private $serverProperties;
-
 	/**
 	 * @var mixed[]
 	 * @phpstan-var array<string, mixed>
 	 */
-	private $propertyCache = [];
+	private array $propertyCache = [];
 
-	public function __construct(Config $pocketmineYml, Config $serverProperties){
-		$this->pocketmineYml = $pocketmineYml;
-		$this->serverProperties = $serverProperties;
-	}
+	public function __construct(
+		private Config $pocketmineYml,
+		private Config $serverProperties
+	){}
 
 	/**
 	 * @param mixed  $defaultValue

src/VersionInfo.php

@@ -25,21 +25,21 @@ namespace pocketmine;
 
 use pocketmine\utils\Git;
 use pocketmine\utils\VersionString;
+use function is_array;
+use function is_int;
 use function str_repeat;
 
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
-	public const BASE_VERSION = "4.0.0-BETA11";
+	public const BASE_VERSION = "4.4.0";
 	public const IS_DEVELOPMENT_BUILD = false;
-	public const BUILD_NUMBER = 0;
-	public const BUILD_CHANNEL = "beta";
+	public const BUILD_CHANNEL = "stable";
 
 	private function __construct(){
 		//NOOP
 	}
 
-	/** @var string|null */
-	private static $gitHash = null;
+	private static ?string $gitHash = null;
 
 	public static function GIT_HASH() : string{
 		if(self::$gitHash === null){
@@ -61,12 +61,28 @@ final class VersionInfo{
 		return self::$gitHash;
 	}
 
-	/** @var VersionString|null */
-	private static $fullVersion = null;
+	private static ?int $buildNumber = null;
+
+	public static function BUILD_NUMBER() : int{
+		if(self::$buildNumber === null){
+			self::$buildNumber = 0;
+			if(\Phar::running(true) !== ""){
+				$phar = new \Phar(\Phar::running(false));
+				$meta = $phar->getMetadata();
+				if(is_array($meta) && isset($meta["build"]) && is_int($meta["build"])){
+					self::$buildNumber = $meta["build"];
+				}
+			}
+		}
+
+		return self::$buildNumber;
+	}
+
+	private static ?VersionString $fullVersion = null;
 
 	public static function VERSION() : VersionString{
 		if(self::$fullVersion === null){
-			self::$fullVersion = new VersionString(self::BASE_VERSION, self::IS_DEVELOPMENT_BUILD, self::BUILD_NUMBER);
+			self::$fullVersion = new VersionString(self::BASE_VERSION, self::IS_DEVELOPMENT_BUILD, self::BUILD_NUMBER());
 		}
 		return self::$fullVersion;
 	}

src/block/Air.php

@@ -23,16 +23,10 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\math\AxisAlignedBB;
-
 /**
  * Air block
  */
-class Air extends Transparent{
-
-	public function canBeFlowedInto() : bool{
-		return true;
-	}
+class Air extends Flowable{
 
 	public function canBeReplaced() : bool{
 		return true;
@@ -41,15 +35,4 @@ class Air extends Transparent{
 	public function canBePlaced() : bool{
 		return false;
 	}
-
-	public function isSolid() : bool{
-		return false;
-	}
-
-	/**
-	 * @return AxisAlignedBB[]
-	 */
-	protected function recalculateCollisionBoxes() : array{
-		return [];
-	}
 }

src/block/Anvil.php

@@ -28,6 +28,7 @@ use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
 use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -39,7 +40,11 @@ class Anvil extends Transparent implements Fallable{
 	use FallableTrait;
 	use HorizontalFacingTrait;
 
-	private int $damage = 0;
+	public const UNDAMAGED = 0;
+	public const SLIGHTLY_DAMAGED = 1;
+	public const VERY_DAMAGED = 2;
+
+	private int $damage = self::UNDAMAGED;
 
 	protected function writeStateToMeta() : int{
 		return BlockDataSerializer::writeLegacyHorizontalFacing($this->facing) | ($this->damage << 2);
@@ -47,7 +52,7 @@ class Anvil extends Transparent implements Fallable{
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
 		$this->facing = BlockDataSerializer::readLegacyHorizontalFacing($stateMeta & 0x3);
-		$this->damage = BlockDataSerializer::readBoundedInt("damage", $stateMeta >> 2, 0, 2);
+		$this->damage = BlockDataSerializer::readBoundedInt("damage", $stateMeta >> 2, self::UNDAMAGED, self::VERY_DAMAGED);
 	}
 
 	public function getStateBitmask() : int{
@@ -62,8 +67,8 @@ class Anvil extends Transparent implements Fallable{
 
 	/** @return $this */
 	public function setDamage(int $damage) : self{
-		if($damage < 0 || $damage > 2){
-			throw new \InvalidArgumentException("Damage must be in range 0-2");
+		if($damage < self::UNDAMAGED || $damage > self::VERY_DAMAGED){
+			throw new \InvalidArgumentException("Damage must be in range " . self::UNDAMAGED . " ... " . self::VERY_DAMAGED);
 		}
 		$this->damage = $damage;
 		return $this;
@@ -76,6 +81,10 @@ class Anvil extends Transparent implements Fallable{
 		return [AxisAlignedBB::one()->squash(Facing::axis(Facing::rotateY($this->facing, false)), 1 / 8)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
 			$player->setCurrentWindow(new AnvilInventory($this->position));

src/block/Bamboo.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\StructureGrowEvent;
 use pocketmine\item\Bamboo as ItemBamboo;
 use pocketmine\item\Fertilizer;
@@ -100,6 +101,10 @@ class Bamboo extends Transparent{
 		return [AxisAlignedBB::one()->trim(Facing::SOUTH, $inset)->trim(Facing::EAST, $inset)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	private static function getOffsetSeed(int $x, int $y, int $z) : int{
 		$p1 = gmp_mul($z, 0x6ebfff5);
 		$p2 = gmp_mul($x, 0x2fc20f);
@@ -160,7 +165,7 @@ class Bamboo extends Transparent{
 
 	public function onNearbyBlockChange() : void{
 		$below = $this->position->getWorld()->getBlock($this->position->down());
-		if(!$this->canBeSupportedBy($below) and !$below->isSameType($this)){
+		if(!$this->canBeSupportedBy($below) && !$below->isSameType($this)){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}

src/block/BambooSapling.php

@@ -36,14 +36,14 @@ final class BambooSapling extends Flowable{
 	private bool $ready = false;
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->ready = ($stateMeta & BlockLegacyMetadata::SAPLING_FLAG_READY) !== 0;
+		$this->ready = ($stateMeta & BlockLegacyMetadata::BAMBOO_SAPLING_FLAG_READY) !== 0;
 	}
 
 	protected function writeStateToMeta() : int{
-		return $this->ready ? BlockLegacyMetadata::SAPLING_FLAG_READY : 0;
+		return $this->ready ? BlockLegacyMetadata::BAMBOO_SAPLING_FLAG_READY : 0;
 	}
 
-	public function getStateBitmask() : int{ return 0b1000; }
+	public function getStateBitmask() : int{ return 0b1; }
 
 	public function isReady() : bool{ return $this->ready; }
 

src/block/BaseBanner.php

@@ -27,6 +27,7 @@ use pocketmine\block\tile\Banner as TileBanner;
 use pocketmine\block\utils\BannerPatternLayer;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\DyeColor;
+use pocketmine\block\utils\SupportType;
 use pocketmine\data\bedrock\DyeColorIdMap;
 use pocketmine\item\Banner as ItemBanner;
 use pocketmine\item\Item;
@@ -107,6 +108,10 @@ abstract class BaseBanner extends Transparent{
 		return [];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($item instanceof ItemBanner){
 			$this->color = $item->getColor();
@@ -130,7 +135,7 @@ abstract class BaseBanner extends Transparent{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		$drop = $this->asItem();
-		if($drop instanceof ItemBanner and count($this->patterns) > 0){
+		if($drop instanceof ItemBanner && count($this->patterns) > 0){
 			$drop->setPatterns($this->patterns);
 		}
 
@@ -139,7 +144,7 @@ abstract class BaseBanner extends Transparent{
 
 	public function getPickedItem(bool $addUserData = false) : Item{
 		$result = $this->asItem();
-		if($addUserData and $result instanceof ItemBanner and count($this->patterns) > 0){
+		if($addUserData && $result instanceof ItemBanner && count($this->patterns) > 0){
 			$result->setPatterns($this->patterns);
 		}
 		return $result;

src/block/BaseCoral.php

@@ -24,34 +24,18 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\CoralType;
+use pocketmine\block\utils\CoralTypeTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 
 abstract class BaseCoral extends Transparent{
-
-	protected CoralType $coralType;
-	protected bool $dead = false;
+	use CoralTypeTrait;
 
 	public function __construct(BlockIdentifier $idInfo, string $name, BlockBreakInfo $breakInfo){
 		parent::__construct($idInfo, $name, $breakInfo);
 		$this->coralType = CoralType::TUBE();
 	}
 
-	public function getCoralType() : CoralType{ return $this->coralType; }
-
-	/** @return $this */
-	public function setCoralType(CoralType $coralType) : self{
-		$this->coralType = $coralType;
-		return $this;
-	}
-
-	public function isDead() : bool{ return $this->dead; }
-
-	/** @return $this */
-	public function setDead(bool $dead) : self{
-		$this->dead = $dead;
-		return $this;
-	}
-
 	public function onNearbyBlockChange() : void{
 		if(!$this->dead){
 			$world = $this->position->getWorld();
@@ -82,4 +66,8 @@ abstract class BaseCoral extends Transparent{
 	public function isSolid() : bool{ return false; }
 
 	protected function recalculateCollisionBoxes() : array{ return []; }
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
 }

src/block/BaseRail.php

@@ -38,7 +38,7 @@ use function in_array;
 abstract class BaseRail extends Flowable{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$blockReplace->getSide(Facing::DOWN)->isTransparent()){
+		if($blockReplace->getSide(Facing::DOWN)->getSupportType(Facing::UP)->hasEdgeSupport()){
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
 
@@ -101,7 +101,7 @@ abstract class BaseRail extends Flowable{
 			}
 
 			if(
-				$other instanceof BaseRail and
+				$other instanceof BaseRail &&
 				in_array($otherConnection, $other->getCurrentShapeConnections(), true)
 			){
 				$connections[] = $connection;
@@ -179,7 +179,7 @@ abstract class BaseRail extends Flowable{
 					$otherSide |= RailConnectionInfo::FLAG_ASCEND;
 				}
 
-				if(!($other instanceof BaseRail) or count($otherConnections = $other->getConnectedDirections()) >= 2){
+				if(!($other instanceof BaseRail) || count($otherConnections = $other->getConnectedDirections()) >= 2){
 					//we can only connect to a rail that has less than 2 connections
 					continue;
 				}
@@ -220,11 +220,11 @@ abstract class BaseRail extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if($this->getSide(Facing::DOWN)->isTransparent()){
+		if(!$this->getSide(Facing::DOWN)->getSupportType(Facing::UP)->hasEdgeSupport()){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}else{
 			foreach($this->getCurrentShapeConnections() as $connection){
-				if(($connection & RailConnectionInfo::FLAG_ASCEND) !== 0 and $this->getSide($connection & ~RailConnectionInfo::FLAG_ASCEND)->isTransparent()){
+				if(($connection & RailConnectionInfo::FLAG_ASCEND) !== 0 && !$this->getSide($connection & ~RailConnectionInfo::FLAG_ASCEND)->getSupportType(Facing::UP)->hasEdgeSupport()){
 					$this->position->getWorld()->useBreakOn($this->position);
 					break;
 				}

src/block/BaseSign.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\tile\Sign as TileSign;
 use pocketmine\block\utils\SignText;
+use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\SignChangeEvent;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
@@ -37,8 +38,6 @@ use function assert;
 use function strlen;
 
 abstract class BaseSign extends Transparent{
-	//TODO: conditionally useless properties, find a way to fix
-
 	protected SignText $text;
 	protected ?int $editorEntityRuntimeId = null;
 
@@ -79,6 +78,10 @@ abstract class BaseSign extends Transparent{
 		return [];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	abstract protected function getSupportingFace() : int;
 
 	public function onNearbyBlockChange() : void{

src/block/Bed.php

@@ -28,6 +28,7 @@ use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\DyeColor;
 use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\data\bedrock\DyeColorIdMap;
 use pocketmine\entity\Entity;
 use pocketmine\entity\Living;
@@ -94,6 +95,10 @@ class Bed extends Transparent{
 		return [AxisAlignedBB::one()->trim(Facing::UP, 7 / 16)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function isHeadPart() : bool{
 		return $this->head;
 	}
@@ -120,7 +125,7 @@ class Bed extends Transparent{
 
 	public function getOtherHalf() : ?Bed{
 		$other = $this->getSide($this->getOtherHalfSide());
-		if($other instanceof Bed and $other->head !== $this->head and $other->facing === $this->facing){
+		if($other instanceof Bed && $other->head !== $this->head && $other->facing === $this->facing){
 			return $other;
 		}
 
@@ -135,17 +140,17 @@ class Bed extends Transparent{
 				$player->sendMessage(TextFormat::GRAY . "This bed is incomplete");
 
 				return true;
-			}elseif($playerPos->distanceSquared($this->position) > 4 and $playerPos->distanceSquared($other->position) > 4){
+			}elseif($playerPos->distanceSquared($this->position) > 4 && $playerPos->distanceSquared($other->position) > 4){
 				$player->sendMessage(KnownTranslationFactory::tile_bed_tooFar()->prefix(TextFormat::GRAY));
 				return true;
 			}
 
 			$time = $this->position->getWorld()->getTimeOfDay();
 
-			$isNight = ($time >= World::TIME_NIGHT and $time < World::TIME_SUNRISE);
+			$isNight = ($time >= World::TIME_NIGHT && $time < World::TIME_SUNRISE);
 
 			if(!$isNight){
-				$player->sendMessage(KnownTranslationFactory::tile_bed_tooFar()->prefix(TextFormat::GRAY));
+				$player->sendMessage(KnownTranslationFactory::tile_bed_noSleep()->prefix(TextFormat::GRAY));
 
 				return true;
 			}
@@ -166,7 +171,7 @@ class Bed extends Transparent{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(($other = $this->getOtherHalf()) !== null and $other->occupied !== $this->occupied){
+		if(!$this->head && ($other = $this->getOtherHalf()) !== null && $other->occupied !== $this->occupied){
 			$this->occupied = $other->occupied;
 			$this->position->getWorld()->setBlock($this->position, $this);
 		}
@@ -181,12 +186,11 @@ class Bed extends Transparent{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		$down = $this->getSide(Facing::DOWN);
-		if(!$down->isTransparent()){
+		if($this->canBeSupportedBy($this->getSide(Facing::DOWN))){
 			$this->facing = $player !== null ? $player->getHorizontalFacing() : Facing::NORTH;
 
 			$next = $this->getSide($this->getOtherHalfSide());
-			if($next->canBeReplaced() and !$next->getSide(Facing::DOWN)->isTransparent()){
+			if($next->canBeReplaced() && $this->canBeSupportedBy($next->getSide(Facing::DOWN))){
 				$nextState = clone $this;
 				$nextState->head = true;
 				$tx->addBlock($blockReplace->position, $this)->addBlock($next->position, $nextState);
@@ -216,4 +220,8 @@ class Bed extends Transparent{
 
 		return parent::getAffectedBlocks();
 	}
+
+	private function canBeSupportedBy(Block $block) : bool{
+		return !$block->getSupportType(Facing::UP)->equals(SupportType::NONE());
+	}
 }

src/block/Beetroot.php

@@ -30,7 +30,7 @@ use function mt_rand;
 class Beetroot extends Crops{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
-		if($this->age >= 7){
+		if($this->age >= self::MAX_AGE){
 			return [
 				VanillaItems::BEETROOT(),
 				VanillaItems::BEETROOT_SEEDS()->setCount(mt_rand(0, 3))

src/block/Bell.php

@@ -28,7 +28,9 @@ use pocketmine\block\utils\BellAttachmentType;
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\InvalidBlockStateException;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
+use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
@@ -78,6 +80,32 @@ final class Bell extends Transparent{
 		return 0b1111;
 	}
 
+	protected function recalculateCollisionBoxes() : array{
+		if($this->attachmentType->equals(BellAttachmentType::FLOOR())){
+			return [
+				AxisAlignedBB::one()->squash(Facing::axis($this->facing), 1 / 4)->trim(Facing::UP, 3 / 16)
+			];
+		}
+		if($this->attachmentType->equals(BellAttachmentType::CEILING())){
+			return [
+				AxisAlignedBB::one()->contract(1 / 4, 0, 1 / 4)->trim(Facing::DOWN, 1 / 4)
+			];
+		}
+
+		$box = AxisAlignedBB::one()
+			->squash(Facing::axis(Facing::rotateY($this->facing, true)), 1 / 4)
+			->trim(Facing::UP, 1 / 16)
+			->trim(Facing::DOWN, 1 / 4);
+
+		return [
+			$this->attachmentType->equals(BellAttachmentType::ONE_WALL()) ? $box->trim($this->facing, 3 / 16) : $box
+		];
+	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function getAttachmentType() : BellAttachmentType{ return $this->attachmentType; }
 
 	/** @return $this */

src/block/Block.php

@@ -29,6 +29,7 @@ namespace pocketmine\block;
 use pocketmine\block\tile\Spawnable;
 use pocketmine\block\tile\Tile;
 use pocketmine\block\utils\InvalidBlockStateException;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\Entity;
 use pocketmine\item\enchantment\VanillaEnchantments;
 use pocketmine\item\Item;
@@ -148,14 +149,14 @@ class Block{
 		$tileType = $this->idInfo->getTileClass();
 		$oldTile = $this->position->getWorld()->getTile($this->position);
 		if($oldTile !== null){
-			if($tileType === null or !($oldTile instanceof $tileType)){
+			if($tileType === null || !($oldTile instanceof $tileType)){
 				$oldTile->close();
 				$oldTile = null;
 			}elseif($oldTile instanceof Spawnable){
-				$oldTile->setDirty(); //destroy old network cache
+				$oldTile->clearSpawnCompoundCache(); //destroy old network cache
 			}
 		}
-		if($oldTile === null and $tileType !== null){
+		if($oldTile === null && $tileType !== null){
 			/**
 			 * @var Tile $tile
 			 * @see Tile::__construct()
@@ -166,13 +167,21 @@ class Block{
 	}
 
 	/**
-	 * Returns whether the given block has an equivalent type to this one. This compares base legacy ID and variant.
+	 * Returns a type ID that identifies this type of block. This does not include information like facing, colour,
+	 * powered/unpowered, etc.
+	 */
+	public function getTypeId() : int{
+		return ($this->idInfo->getBlockId() << Block::INTERNAL_METADATA_BITS) | $this->idInfo->getVariant();
+	}
+
+	/**
+	 * Returns whether the given block has an equivalent type to this one. This compares the type IDs.
 	 *
 	 * Note: This ignores additional IDs used to represent additional states. This means that, for example, a lit
 	 * furnace and unlit furnace are considered the same type.
 	 */
 	public function isSameType(Block $other) : bool{
-		return $this->idInfo->getBlockId() === $other->idInfo->getBlockId() and $this->idInfo->getVariant() === $other->idInfo->getVariant();
+		return $this->getTypeId() === $other->getTypeId();
 	}
 
 	/**
@@ -353,7 +362,7 @@ class Block{
 	 */
 	public function getDrops(Item $item) : array{
 		if($this->breakInfo->isToolCompatible($item)){
-			if($this->isAffectedBySilkTouch() and $item->hasEnchantment(VanillaEnchantments::SILK_TOUCH())){
+			if($this->isAffectedBySilkTouch() && $item->hasEnchantment(VanillaEnchantments::SILK_TOUCH())){
 				return $this->getSilkTouchDrops($item);
 			}
 
@@ -394,7 +403,7 @@ class Block{
 	 * Returns how much XP will be dropped by breaking this block with the given item.
 	 */
 	public function getXpDropForTool(Item $item) : int{
-		if($item->hasEnchantment(VanillaEnchantments::SILK_TOUCH()) or !$this->breakInfo->isToolCompatible($item)){
+		if($item->hasEnchantment(VanillaEnchantments::SILK_TOUCH()) || !$this->breakInfo->isToolCompatible($item)){
 			return 0;
 		}
 
@@ -602,10 +611,14 @@ class Block{
 		return [AxisAlignedBB::one()];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::FULL();
+	}
+
 	public function isFullCube() : bool{
 		$bb = $this->getCollisionBoxes();
 
-		return count($bb) === 1 and $bb[0]->getAverageEdgeLength() >= 1 and $bb[0]->isCube();
+		return count($bb) === 1 && $bb[0]->getAverageEdgeLength() >= 1 && $bb[0]->isCube();
 	}
 
 	public function calculateIntercept(Vector3 $pos1, Vector3 $pos2) : ?RayTraceResult{

src/block/BlockBreakInfo.php

@@ -38,18 +38,17 @@ class BlockBreakInfo{
 	 */
 	public const INCOMPATIBLE_TOOL_MULTIPLIER = 5.0;
 
-	private float $hardness;
 	private float $blastResistance;
-	private int $toolType;
-	private int $toolHarvestLevel;
 
 	/**
 	 * @param float|null $blastResistance default 5x hardness
 	 */
-	public function __construct(float $hardness, int $toolType = BlockToolType::NONE, int $toolHarvestLevel = 0, ?float $blastResistance = null){
-		$this->hardness = $hardness;
-		$this->toolType = $toolType;
-		$this->toolHarvestLevel = $toolHarvestLevel;
+	public function __construct(
+		private float $hardness,
+		private int $toolType = BlockToolType::NONE,
+		private int $toolHarvestLevel = 0,
+		?float $blastResistance = null
+	){
 		$this->blastResistance = $blastResistance ?? $hardness * 5;
 	}
 
@@ -119,8 +118,8 @@ class BlockBreakInfo{
 			return false;
 		}
 
-		return $this->toolType === BlockToolType::NONE or $this->toolHarvestLevel === 0 or (
-				($this->toolType & $tool->getBlockToolType()) !== 0 and $tool->getBlockToolHarvestLevel() >= $this->toolHarvestLevel);
+		return $this->toolType === BlockToolType::NONE || $this->toolHarvestLevel === 0 || (
+				($this->toolType & $tool->getBlockToolType()) !== 0 && $tool->getBlockToolHarvestLevel() >= $this->toolHarvestLevel);
 	}
 
 	/**

src/block/BlockIdentifier.php

@@ -24,23 +24,21 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\tile\Tile;
+use pocketmine\utils\Utils;
 
 class BlockIdentifier{
-
-	private int $blockId;
-	private int $variant;
-	private ?int $itemId;
-	/** @phpstan-var class-string<Tile>|null */
-	private ?string $tileClass;
-
 	/**
 	 * @phpstan-param class-string<Tile>|null $tileClass
 	 */
-	public function __construct(int $blockId, int $variant, ?int $itemId = null, ?string $tileClass = null){
-		$this->blockId = $blockId;
-		$this->variant = $variant;
-		$this->itemId = $itemId;
-		$this->tileClass = $tileClass;
+	public function __construct(
+		private int $blockId,
+		private int $variant,
+		private ?int $itemId = null,
+		private ?string $tileClass = null
+	){
+		if($tileClass !== null){
+			Utils::testValidInstance($tileClass, Tile::class);
+		}
 	}
 
 	public function getBlockId() : int{

src/block/BlockLegacyMetadata.php

@@ -42,6 +42,8 @@ final class BlockLegacyMetadata{
 	public const BAMBOO_LEAF_SIZE_SHIFT = 1;
 	public const BAMBOO_LEAF_SIZE_MASK = 0x03;
 
+	public const BAMBOO_SAPLING_FLAG_READY = 0x01;
+
 	public const BARREL_FLAG_OPEN = 0x08;
 
 	public const BED_FLAG_HEAD = 0x08;
@@ -142,6 +144,8 @@ final class BlockLegacyMetadata{
 	public const LEAVES_FLAG_NO_DECAY = 0x04;
 	public const LEAVES_FLAG_CHECK_DECAY = 0x08;
 
+	public const LECTERN_FLAG_POWERED = 0x04;
+
 	public const LEVER_FLAG_POWERED = 0x08;
 
 	public const LIQUID_FLAG_FALLING = 0x08;

src/block/BrewingStand.php

@@ -25,7 +25,11 @@ namespace pocketmine\block;
 
 use pocketmine\block\tile\BrewingStand as TileBrewingStand;
 use pocketmine\block\utils\BrewingStandSlot;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
+use pocketmine\math\Axis;
+use pocketmine\math\AxisAlignedBB;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use function array_key_exists;
@@ -67,6 +71,23 @@ class BrewingStand extends Transparent{
 		return 0b111;
 	}
 
+	protected function recalculateCollisionBoxes() : array{
+		return [
+			//bottom slab part - in PC this is also inset on X/Z by 1/16, but Bedrock sucks
+			AxisAlignedBB::one()->trim(Facing::UP, 7 / 8),
+
+			//center post
+			AxisAlignedBB::one()
+				->squash(Axis::X, 7 / 16)
+				->squash(Axis::Z, 7 / 16)
+				->trim(Facing::UP, 1 / 8)
+		];
+	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function hasSlot(BrewingStandSlot $slot) : bool{
 		return array_key_exists($slot->id(), $this->slots);
 	}
@@ -100,7 +121,7 @@ class BrewingStand extends Transparent{
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
 			$stand = $this->position->getWorld()->getTile($this->position);
-			if($stand instanceof TileBrewingStand and $stand->canOpenWith($item->getCustomName())){
+			if($stand instanceof TileBrewingStand && $stand->canOpenWith($item->getCustomName())){
 				$player->setCurrentWindow($stand->getInventory());
 			}
 		}
@@ -109,6 +130,24 @@ class BrewingStand extends Transparent{
 	}
 
 	public function onScheduledUpdate() : void{
-		//TODO
+		$brewing = $this->position->getWorld()->getTile($this->position);
+		if($brewing instanceof TileBrewingStand){
+			if($brewing->onUpdate()){
+				$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, 1);
+			}
+
+			$changed = false;
+			foreach(BrewingStandSlot::getAll() as $slot){
+				$occupied = !$brewing->getInventory()->isSlotEmpty($slot->getSlotNumber());
+				if($occupied !== $this->hasSlot($slot)){
+					$this->setSlot($slot, $occupied);
+					$changed = true;
+				}
+			}
+
+			if($changed){
+				$this->position->getWorld()->setBlock($this->position, $this);
+			}
+		}
 	}
 }

src/block/Button.php

@@ -61,9 +61,11 @@ abstract class Button extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		//TODO: check valid target block
-		$this->facing = $face;
-		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+		if($this->canBeSupportedBy($blockClicked, $face)){
+			$this->facing = $face;
+			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+		}
+		return false;
 	}
 
 	abstract protected function getActivationTime() : int;
@@ -86,4 +88,14 @@ abstract class Button extends Flowable{
 			$this->position->getWorld()->addSound($this->position->add(0.5, 0.5, 0.5), new RedstonePowerOffSound());
 		}
 	}
+
+	public function onNearbyBlockChange() : void{
+		if(!$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)), $this->facing)){
+			$this->position->getWorld()->useBreakOn($this->position);
+		}
+	}
+
+	private function canBeSupportedBy(Block $support, int $face) : bool{
+		return $support->getSupportType($face)->hasCenterSupport();
+	}
 }

src/block/Cactus.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\Entity;
 use pocketmine\event\block\BlockGrowEvent;
 use pocketmine\event\entity\EntityDamageByBlockEvent;
@@ -36,6 +37,7 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
 class Cactus extends Transparent{
+	public const MAX_AGE = 15;
 
 	protected int $age = 0;
 
@@ -44,7 +46,7 @@ class Cactus extends Transparent{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, 15);
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, self::MAX_AGE);
 	}
 
 	public function getStateBitmask() : int{
@@ -55,8 +57,8 @@ class Cactus extends Transparent{
 
 	/** @return $this */
 	public function setAge(int $age) : self{
-		if($age < 0 || $age > 15){
-			throw new \InvalidArgumentException("Age must be in range 0-15");
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
 		}
 		$this->age = $age;
 		return $this;
@@ -74,6 +76,10 @@ class Cactus extends Transparent{
 		return [AxisAlignedBB::one()->contract($shrinkSize, 0, $shrinkSize)->trim(Facing::UP, $shrinkSize)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onEntityInside(Entity $entity) : bool{
 		$ev = new EntityDamageByBlockEvent($this, $entity, EntityDamageEvent::CAUSE_CONTACT, 1);
 		$entity->attack($ev);
@@ -82,7 +88,7 @@ class Cactus extends Transparent{
 
 	public function onNearbyBlockChange() : void{
 		$down = $this->getSide(Facing::DOWN);
-		if($down->getId() !== BlockLegacyIds::SAND and !$down->isSameType($this)){
+		if($down->getId() !== BlockLegacyIds::SAND && !$down->isSameType($this)){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}else{
 			foreach(Facing::HORIZONTAL as $side){
@@ -101,7 +107,7 @@ class Cactus extends Transparent{
 
 	public function onRandomTick() : void{
 		if(!$this->getSide(Facing::DOWN)->isSameType($this)){
-			if($this->age === 15){
+			if($this->age === self::MAX_AGE){
 				for($y = 1; $y < 3; ++$y){
 					if(!$this->position->getWorld()->isInWorld($this->position->x, $this->position->y + $y, $this->position->z)){
 						break;
@@ -129,7 +135,7 @@ class Cactus extends Transparent{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$down = $this->getSide(Facing::DOWN);
-		if($down->getId() === BlockLegacyIds::SAND or $down->isSameType($this)){
+		if($down->getId() === BlockLegacyIds::SAND || $down->isSameType($this)){
 			foreach(Facing::HORIZONTAL as $side){
 				if($this->getSide($side)->isSolid()){
 					return false;

src/block/Cake.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\effect\EffectInstance;
 use pocketmine\entity\FoodSource;
 use pocketmine\entity\Living;
@@ -35,6 +36,7 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
 class Cake extends Transparent implements FoodSource{
+	public const MAX_BITES = 6;
 
 	protected int $bites = 0;
 
@@ -43,7 +45,7 @@ class Cake extends Transparent implements FoodSource{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->bites = BlockDataSerializer::readBoundedInt("bites", $stateMeta, 0, 6);
+		$this->bites = BlockDataSerializer::readBoundedInt("bites", $stateMeta, 0, self::MAX_BITES);
 	}
 
 	public function getStateBitmask() : int{
@@ -62,12 +64,16 @@ class Cake extends Transparent implements FoodSource{
 		];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function getBites() : int{ return $this->bites; }
 
 	/** @return $this */
 	public function setBites(int $bites) : self{
-		if($bites < 0 || $bites > 6){
-			throw new \InvalidArgumentException("Bites must be in range 0-6");
+		if($bites < 0 || $bites > self::MAX_BITES){
+			throw new \InvalidArgumentException("Bites must be in range 0 ... " . self::MAX_BITES);
 		}
 		$this->bites = $bites;
 		return $this;
@@ -118,7 +124,7 @@ class Cake extends Transparent implements FoodSource{
 	public function getResidue(){
 		$clone = clone $this;
 		$clone->bites++;
-		if($clone->bites > 6){
+		if($clone->bites > self::MAX_BITES){
 			$clone = VanillaBlocks::AIR();
 		}
 		return $clone;

src/block/Carrot.php

@@ -31,7 +31,7 @@ class Carrot extends Crops{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::CARROT()->setCount($this->age >= 7 ? mt_rand(1, 4) : 1)
+			VanillaItems::CARROT()->setCount($this->age >= self::MAX_AGE ? mt_rand(1, 4) : 1)
 		];
 	}
 

src/block/Chest.php

@@ -26,6 +26,8 @@ namespace pocketmine\block;
 use pocketmine\block\tile\Chest as TileChest;
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
 use pocketmine\block\utils\NormalHorizontalFacingInMetadataTrait;
+use pocketmine\block\utils\SupportType;
+use pocketmine\event\block\ChestPairEvent;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -44,20 +46,28 @@ class Chest extends Transparent{
 		return [AxisAlignedBB::one()->contract(0.025, 0, 0.025)->trim(Facing::UP, 0.05)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onPostPlace() : void{
 		$tile = $this->position->getWorld()->getTile($this->position);
 		if($tile instanceof TileChest){
-			foreach([
-				Facing::rotateY($this->facing, true),
-				Facing::rotateY($this->facing, false)
-			] as $side){
+			foreach([false, true] as $clockwise){
+				$side = Facing::rotateY($this->facing, $clockwise);
 				$c = $this->getSide($side);
-				if($c instanceof Chest and $c->isSameType($this) and $c->facing === $this->facing){
-					$pair = $this->position->getWorld()->getTile($c->position);
-					if($pair instanceof TileChest and !$pair->isPaired()){
-						$pair->pairWith($tile);
-						$tile->pairWith($pair);
-						break;
+				if($c instanceof Chest && $c->isSameType($this) && $c->facing === $this->facing){
+					$world = $this->position->getWorld();
+					$pair = $world->getTile($c->position);
+					if($pair instanceof TileChest && !$pair->isPaired()){
+						[$left, $right] = $clockwise ? [$c, $this] : [$this, $c];
+						$ev = new ChestPairEvent($left, $right);
+						$ev->call();
+						if(!$ev->isCancelled() && $world->getBlock($this->position)->isSameType($this) && $world->getBlock($c->position)->isSameType($c)){
+							$pair->pairWith($tile);
+							$tile->pairWith($pair);
+							break;
+						}
 					}
 				}
 			}
@@ -70,8 +80,8 @@ class Chest extends Transparent{
 			$chest = $this->position->getWorld()->getTile($this->position);
 			if($chest instanceof TileChest){
 				if(
-					!$this->getSide(Facing::UP)->isTransparent() or
-					(($pair = $chest->getPair()) !== null and !$pair->getBlock()->getSide(Facing::UP)->isTransparent()) or
+					!$this->getSide(Facing::UP)->isTransparent() ||
+					(($pair = $chest->getPair()) !== null && !$pair->getBlock()->getSide(Facing::UP)->isTransparent()) ||
 					!$chest->canOpenWith($item->getCustomName())
 				){
 					return true;

src/block/Cobweb.php

@@ -39,6 +39,9 @@ class Cobweb extends Flowable{
 	}
 
 	public function getDropsForCompatibleTool(Item $item) : array{
+		if(($item->getBlockToolType() & BlockToolType::SHEARS) !== 0){
+			return [$this->asItem()];
+		}
 		return [
 			VanillaItems::STRING()
 		];

src/block/CocoaBlock.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\block\utils\TreeType;
 use pocketmine\event\block\BlockGrowEvent;
 use pocketmine\item\Fertilizer;
@@ -41,6 +42,8 @@ use function mt_rand;
 class CocoaBlock extends Transparent{
 	use HorizontalFacingTrait;
 
+	public const MAX_AGE = 2;
+
 	protected int $age = 0;
 
 	protected function writeStateToMeta() : int{
@@ -49,7 +52,7 @@ class CocoaBlock extends Transparent{
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
 		$this->facing = Facing::opposite(BlockDataSerializer::readLegacyHorizontalFacing($stateMeta & 0x03));
-		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta >> 2, 0, 2);
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta >> 2, 0, self::MAX_AGE);
 	}
 
 	public function getStateBitmask() : int{
@@ -60,8 +63,8 @@ class CocoaBlock extends Transparent{
 
 	/** @return $this */
 	public function setAge(int $age) : self{
-		if($age < 0 || $age > 2){
-			throw new \InvalidArgumentException("Age must be in range 0-2");
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
 		}
 		$this->age = $age;
 		return $this;
@@ -81,12 +84,16 @@ class CocoaBlock extends Transparent{
 		];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	private function canAttachTo(Block $block) : bool{
 		return $block instanceof Wood && $block->getTreeType()->equals(TreeType::JUNGLE());
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(Facing::axis($face) !== Axis::Y and $this->canAttachTo($blockClicked)){
+		if(Facing::axis($face) !== Axis::Y && $this->canAttachTo($blockClicked)){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
@@ -121,7 +128,7 @@ class CocoaBlock extends Transparent{
 	}
 
 	private function grow() : bool{
-		if($this->age < 2){
+		if($this->age < self::MAX_AGE){
 			$block = clone $this;
 			$block->age++;
 			$ev = new BlockGrowEvent($this, $block);
@@ -136,7 +143,7 @@ class CocoaBlock extends Transparent{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [
-			VanillaItems::COCOA_BEANS()->setCount($this->age === 2 ? mt_rand(2, 3) : 1)
+			VanillaItems::COCOA_BEANS()->setCount($this->age === self::MAX_AGE ? mt_rand(2, 3) : 1)
 		];
 	}
 

src/block/ConcretePowder.php

@@ -27,6 +27,7 @@ use pocketmine\block\utils\ColorInMetadataTrait;
 use pocketmine\block\utils\DyeColor;
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
+use pocketmine\event\block\BlockFormEvent;
 use pocketmine\math\Facing;
 
 class ConcretePowder extends Opaque implements Fallable{
@@ -42,7 +43,11 @@ class ConcretePowder extends Opaque implements Fallable{
 
 	public function onNearbyBlockChange() : void{
 		if(($block = $this->checkAdjacentWater()) !== null){
-			$this->position->getWorld()->setBlock($this->position, $block);
+			$ev = new BlockFormEvent($this, $block);
+			$ev->call();
+			if(!$ev->isCancelled()){
+				$this->position->getWorld()->setBlock($this->position, $ev->getNewState());
+			}
 		}else{
 			$this->startFalling();
 		}

src/block/Coral.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\utils\InvalidBlockStateException;
 use pocketmine\data\bedrock\CoralTypeIdMap;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
@@ -65,7 +66,7 @@ final class Coral extends BaseCoral{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$tx->fetchBlock($blockReplace->getPosition()->down())->isSolid()){
+		if(!$this->canBeSupportedBy($tx->fetchBlock($blockReplace->getPosition()->down()))){
 			return false;
 		}
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
@@ -73,10 +74,14 @@ final class Coral extends BaseCoral{
 
 	public function onNearbyBlockChange() : void{
 		$world = $this->position->getWorld();
-		if(!$world->getBlock($this->position->down())->isSolid()){
+		if(!$this->canBeSupportedBy($world->getBlock($this->position->down()))){
 			$world->useBreakOn($this->position);
 		}else{
 			parent::onNearbyBlockChange();
 		}
 	}
+
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::UP)->hasCenterSupport();
+	}
 }

src/block/CoralBlock.php

@@ -24,15 +24,14 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\CoralType;
+use pocketmine\block\utils\CoralTypeTrait;
 use pocketmine\block\utils\InvalidBlockStateException;
 use pocketmine\data\bedrock\CoralTypeIdMap;
 use pocketmine\item\Item;
 use function mt_rand;
 
 final class CoralBlock extends Opaque{
-
-	private CoralType $coralType;
-	private bool $dead = false;
+	use CoralTypeTrait;
 
 	public function __construct(BlockIdentifier $idInfo, string $name, BlockBreakInfo $breakInfo){
 		$this->coralType = CoralType::TUBE();
@@ -60,22 +59,6 @@ final class CoralBlock extends Opaque{
 		return 0b1111;
 	}
 
-	public function getCoralType() : CoralType{ return $this->coralType; }
-
-	/** @return $this */
-	public function setCoralType(CoralType $coralType) : self{
-		$this->coralType = $coralType;
-		return $this;
-	}
-
-	public function isDead() : bool{ return $this->dead; }
-
-	/** @return $this */
-	public function setDead(bool $dead) : self{
-		$this->dead = $dead;
-		return $this;
-	}
-
 	public function onNearbyBlockChange() : void{
 		if(!$this->dead){
 			$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(40, 200));

src/block/CraftingTable.php

@@ -23,7 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\crafting\CraftingGrid;
+use pocketmine\block\inventory\CraftingTableInventory;
 use pocketmine\item\Item;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
@@ -32,7 +32,7 @@ class CraftingTable extends Opaque{
 
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
-			$player->setCraftingGrid(new CraftingGrid($player, CraftingGrid::SIZE_BIG));
+			$player->setCurrentWindow(new CraftingTableInventory($this->position));
 		}
 
 		return true;

src/block/Crops.php

@@ -34,6 +34,7 @@ use pocketmine\world\BlockTransaction;
 use function mt_rand;
 
 abstract class Crops extends Flowable{
+	public const MAX_AGE = 7;
 
 	protected int $age = 0;
 
@@ -42,7 +43,7 @@ abstract class Crops extends Flowable{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, 7);
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, self::MAX_AGE);
 	}
 
 	public function getStateBitmask() : int{
@@ -53,8 +54,8 @@ abstract class Crops extends Flowable{
 
 	/** @return $this */
 	public function setAge(int $age) : self{
-		if($age < 0 || $age > 7){
-			throw new \InvalidArgumentException("Age must be in range 0-7");
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
 		}
 		$this->age = $age;
 		return $this;
@@ -69,11 +70,11 @@ abstract class Crops extends Flowable{
 	}
 
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($this->age < 7 and $item instanceof Fertilizer){
+		if($this->age < self::MAX_AGE && $item instanceof Fertilizer){
 			$block = clone $this;
 			$block->age += mt_rand(2, 5);
-			if($block->age > 7){
-				$block->age = 7;
+			if($block->age > self::MAX_AGE){
+				$block->age = self::MAX_AGE;
 			}
 
 			$ev = new BlockGrowEvent($this, $block);
@@ -100,7 +101,7 @@ abstract class Crops extends Flowable{
 	}
 
 	public function onRandomTick() : void{
-		if($this->age < 7 and mt_rand(0, 2) === 1){
+		if($this->age < self::MAX_AGE && mt_rand(0, 2) === 1){
 			$block = clone $this;
 			++$block->age;
 			$ev = new BlockGrowEvent($this, $block);

src/block/DaylightSensor.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\AnalogRedstoneSignalEmitterTrait;
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -87,6 +88,10 @@ class DaylightSensor extends Transparent{
 		return [AxisAlignedBB::one()->trim(Facing::UP, 10 / 16)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->inverted = !$this->inverted;
 		$this->signalStrength = $this->recalculateSignalStrength();

src/block/Dirt.php

@@ -28,6 +28,7 @@ use pocketmine\item\Item;
 use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
+use pocketmine\world\sound\ItemUseOnBlockSound;
 
 class Dirt extends Opaque{
 
@@ -58,9 +59,12 @@ class Dirt extends Opaque{
 	}
 
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($face === Facing::UP and $item instanceof Hoe){
+		if($face === Facing::UP && $item instanceof Hoe){
 			$item->applyDamage(1);
-			$this->position->getWorld()->setBlock($this->position, $this->coarse ? VanillaBlocks::DIRT() : VanillaBlocks::FARMLAND());
+
+			$newBlock = $this->coarse ? VanillaBlocks::DIRT() : VanillaBlocks::FARMLAND();
+			$this->position->getWorld()->addSound($this->position->add(0.5, 0.5, 0.5), new ItemUseOnBlockSound($newBlock));
+			$this->position->getWorld()->setBlock($this->position, $newBlock);
 
 			return true;
 		}

src/block/Door.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\PoweredByRedstoneTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -72,7 +73,7 @@ class Door extends Transparent{
 
 		//copy door properties from other half
 		$other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);
-		if($other instanceof Door and $other->isSameType($this)){
+		if($other instanceof Door && $other->isSameType($this)){
 			if($this->top){
 				$this->facing = $other->facing;
 				$this->open = $other->open;
@@ -119,8 +120,12 @@ class Door extends Transparent{
 		return [AxisAlignedBB::one()->trim($this->open ? Facing::rotateY($this->facing, !$this->hingeRight) : $this->facing, 327 / 400)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onNearbyBlockChange() : void{
-		if($this->getSide(Facing::DOWN)->getId() === BlockLegacyIds::AIR){ //Replace with common break method
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN)) && !$this->getSide(Facing::DOWN) instanceof Door){ //Replace with common break method
 			$this->position->getWorld()->useBreakOn($this->position); //this will delete both halves if they exist
 		}
 	}
@@ -129,7 +134,7 @@ class Door extends Transparent{
 		if($face === Facing::UP){
 			$blockUp = $this->getSide(Facing::UP);
 			$blockDown = $this->getSide(Facing::DOWN);
-			if(!$blockUp->canBeReplaced() or $blockDown->isTransparent()){
+			if(!$blockUp->canBeReplaced() || !$this->canBeSupportedBy($blockDown)){
 				return false;
 			}
 
@@ -140,7 +145,7 @@ class Door extends Transparent{
 			$next = $this->getSide(Facing::rotateY($this->facing, false));
 			$next2 = $this->getSide(Facing::rotateY($this->facing, true));
 
-			if($next->isSameType($this) or (!$next2->isTransparent() and $next->isTransparent())){ //Door hinge
+			if($next->isSameType($this) || (!$next2->isTransparent() && $next->isTransparent())){ //Door hinge
 				$this->hingeRight = true;
 			}
 
@@ -158,7 +163,7 @@ class Door extends Transparent{
 		$this->open = !$this->open;
 
 		$other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);
-		if($other instanceof Door and $other->isSameType($this)){
+		if($other instanceof Door && $other->isSameType($this)){
 			$other->open = $this->open;
 			$this->position->getWorld()->setBlock($other->position, $other);
 		}
@@ -184,4 +189,8 @@ class Door extends Transparent{
 		}
 		return parent::getAffectedBlocks();
 	}
+
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::UP)->hasEdgeSupport();
+	}
 }

src/block/DoublePlant.php

@@ -55,7 +55,7 @@ class DoublePlant extends Flowable{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$id = $blockReplace->getSide(Facing::DOWN)->getId();
-		if(($id === BlockLegacyIds::GRASS or $id === BlockLegacyIds::DIRT) and $blockReplace->getSide(Facing::UP)->canBeReplaced()){
+		if(($id === BlockLegacyIds::GRASS || $id === BlockLegacyIds::DIRT) && $blockReplace->getSide(Facing::UP)->canBeReplaced()){
 			$top = clone $this;
 			$top->top = true;
 			$tx->addBlock($blockReplace->position, $this)->addBlock($blockReplace->position->getSide(Facing::UP), $top);
@@ -72,14 +72,14 @@ class DoublePlant extends Flowable{
 		$other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);
 
 		return (
-			$other instanceof DoublePlant and
-			$other->isSameType($this) and
+			$other instanceof DoublePlant &&
+			$other->isSameType($this) &&
 			$other->top !== $this->top
 		);
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->isValidHalfPlant() or (!$this->top and $this->getSide(Facing::DOWN)->isTransparent())){
+		if(!$this->isValidHalfPlant() || (!$this->top && $this->getSide(Facing::DOWN)->isTransparent())){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}

src/block/DoubleTallGrass.php

@@ -34,7 +34,7 @@ class DoubleTallGrass extends DoublePlant{
 	}
 
 	public function getDropsForIncompatibleTool(Item $item) : array{
-		if($this->top and mt_rand(0, 7) === 0){
+		if($this->top && mt_rand(0, 7) === 0){
 			return [VanillaItems::WHEAT_SEEDS()];
 		}
 		return [];

src/block/DragonEgg.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\BlockTeleportEvent;
 use pocketmine\item\Item;
 use pocketmine\math\Vector3;
@@ -82,4 +83,8 @@ class DragonEgg extends Transparent implements Fallable{
 			}
 		}
 	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
 }

src/block/Element.php

@@ -24,16 +24,15 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 class Element extends Opaque{
-
-	private int $atomicWeight;
-	private int $group;
-	private string $symbol;
-
-	public function __construct(BlockIdentifier $idInfo, string $name, BlockBreakInfo $breakInfo, string $symbol, int $atomicWeight, int $group){
+	public function __construct(
+		BlockIdentifier $idInfo,
+		string $name,
+		BlockBreakInfo $breakInfo,
+		private string $symbol,
+		private int $atomicWeight,
+		private int $group
+	){
 		parent::__construct($idInfo, $name, $breakInfo);
-		$this->atomicWeight = $atomicWeight;
-		$this->group = $group;
-		$this->symbol = $symbol;
 	}
 
 	public function getAtomicWeight() : int{

src/block/EnchantingTable.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\inventory\EnchantInventory;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -39,6 +40,10 @@ class EnchantingTable extends Transparent{
 		return [AxisAlignedBB::one()->trim(Facing::UP, 0.25)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
 			//TODO lock

src/block/EndRod.php

@@ -46,7 +46,7 @@ class EndRod extends Flowable{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		if($stateMeta !== 0 and $stateMeta !== 1){
+		if($stateMeta !== 0 && $stateMeta !== 1){
 			$stateMeta ^= 1;
 		}
 
@@ -59,7 +59,7 @@ class EndRod extends Flowable{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->facing = $face;
-		if($blockClicked instanceof EndRod and $blockClicked->facing === $this->facing){
+		if($blockClicked instanceof EndRod && $blockClicked->facing === $this->facing){
 			$this->facing = Facing::opposite($face);
 		}
 

src/block/EnderChest.php

@@ -27,6 +27,7 @@ use pocketmine\block\inventory\EnderChestInventory;
 use pocketmine\block\tile\EnderChest as TileEnderChest;
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
 use pocketmine\block\utils\NormalHorizontalFacingInMetadataTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -49,10 +50,14 @@ class EnderChest extends Transparent{
 		return [AxisAlignedBB::one()->contract(0.025, 0, 0.025)->trim(Facing::UP, 0.05)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
 			$enderChest = $this->position->getWorld()->getTile($this->position);
-			if($enderChest instanceof TileEnderChest and $this->getSide(Facing::UP)->isTransparent()){
+			if($enderChest instanceof TileEnderChest && $this->getSide(Facing::UP)->isTransparent()){
 				$enderChest->setViewerCount($enderChest->getViewerCount() + 1);
 				$player->setCurrentWindow(new EnderChestInventory($this->position, $player->getEnderInventory()));
 			}
@@ -66,4 +71,8 @@ class EnderChest extends Transparent{
 			VanillaBlocks::OBSIDIAN()->asItem()->setCount(8)
 		];
 	}
+
+	public function isAffectedBySilkTouch() : bool{
+		return true;
+	}
 }

src/block/Farmland.php

@@ -33,6 +33,7 @@ use pocketmine\math\Facing;
 use function lcg_value;
 
 class Farmland extends Transparent{
+	public const MAX_WETNESS = 7;
 
 	protected int $wetness = 0; //"moisture" blockstate property in PC
 
@@ -41,7 +42,7 @@ class Farmland extends Transparent{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->wetness = BlockDataSerializer::readBoundedInt("wetness", $stateMeta, 0, 7);
+		$this->wetness = BlockDataSerializer::readBoundedInt("wetness", $stateMeta, 0, self::MAX_WETNESS);
 	}
 
 	public function getStateBitmask() : int{
@@ -52,8 +53,8 @@ class Farmland extends Transparent{
 
 	/** @return $this */
 	public function setWetness(int $wetness) : self{
-		if($wetness < 0 || $wetness > 7){
-			throw new \InvalidArgumentException("Wetness must be in range 0-7");
+		if($wetness < 0 || $wetness > self::MAX_WETNESS){
+			throw new \InvalidArgumentException("Wetness must be in range 0 ... " . self::MAX_WETNESS);
 		}
 		$this->wetness = $wetness;
 		return $this;
@@ -84,8 +85,8 @@ class Farmland extends Transparent{
 			}else{
 				$this->position->getWorld()->setBlock($this->position, VanillaBlocks::DIRT());
 			}
-		}elseif($this->wetness < 7){
-			$this->wetness = 7;
+		}elseif($this->wetness < self::MAX_WETNESS){
+			$this->wetness = self::MAX_WETNESS;
 			$this->position->getWorld()->setBlock($this->position, $this, false);
 		}
 	}

src/block/Fence.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SupportType;
 use pocketmine\math\Axis;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -41,7 +42,7 @@ class Fence extends Transparent{
 
 		foreach(Facing::HORIZONTAL as $facing){
 			$block = $this->getSide($facing);
-			if($block instanceof static or $block instanceof FenceGate or ($block->isSolid() and !$block->isTransparent())){
+			if($block instanceof static || $block instanceof FenceGate || ($block->isSolid() && !$block->isTransparent())){
 				$this->connections[$facing] = true;
 			}else{
 				unset($this->connections[$facing]);
@@ -61,7 +62,7 @@ class Fence extends Transparent{
 		$connectWest = isset($this->connections[Facing::WEST]);
 		$connectEast = isset($this->connections[Facing::EAST]);
 
-		if($connectWest or $connectEast){
+		if($connectWest || $connectEast){
 			//X axis (west/east)
 			$bbs[] = AxisAlignedBB::one()
 				->squash(Axis::Z, $inset)
@@ -73,7 +74,7 @@ class Fence extends Transparent{
 		$connectNorth = isset($this->connections[Facing::NORTH]);
 		$connectSouth = isset($this->connections[Facing::SOUTH]);
 
-		if($connectNorth or $connectSouth){
+		if($connectNorth || $connectSouth){
 			//Z axis (north/south)
 			$bbs[] = AxisAlignedBB::one()
 				->squash(Axis::X, $inset)
@@ -93,4 +94,8 @@ class Fence extends Transparent{
 
 		return $bbs;
 	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return Facing::axis($facing) === Axis::Y ? SupportType::CENTER() : SupportType::NONE();
+	}
 }

src/block/FenceGate.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -78,9 +79,13 @@ class FenceGate extends Transparent{
 		return $this->open ? [] : [AxisAlignedBB::one()->extend(Facing::UP, 0.5)->squash(Facing::axis($this->facing), 6 / 16)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	private function checkInWall() : bool{
 		return (
-			$this->getSide(Facing::rotateY($this->facing, false)) instanceof Wall or
+			$this->getSide(Facing::rotateY($this->facing, false)) instanceof Wall ||
 			$this->getSide(Facing::rotateY($this->facing, true)) instanceof Wall
 		);
 	}
@@ -105,7 +110,7 @@ class FenceGate extends Transparent{
 
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->open = !$this->open;
-		if($this->open and $player !== null){
+		if($this->open && $player !== null){
 			$playerFacing = $player->getHorizontalFacing();
 			if($playerFacing === Facing::opposite($this->facing)){
 				$this->facing = $playerFacing;

src/block/Fire.php

@@ -27,15 +27,21 @@ use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\entity\Entity;
 use pocketmine\entity\projectile\Arrow;
 use pocketmine\event\block\BlockBurnEvent;
+use pocketmine\event\block\BlockSpreadEvent;
 use pocketmine\event\entity\EntityCombustByBlockEvent;
 use pocketmine\event\entity\EntityDamageByBlockEvent;
 use pocketmine\event\entity\EntityDamageEvent;
 use pocketmine\item\Item;
 use pocketmine\math\Facing;
+use pocketmine\world\format\Chunk;
+use pocketmine\world\World;
+use function intdiv;
+use function max;
 use function min;
 use function mt_rand;
 
 class Fire extends Flowable{
+	public const MAX_AGE = 15;
 
 	protected int $age = 0;
 
@@ -44,7 +50,7 @@ class Fire extends Flowable{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, 15);
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, self::MAX_AGE);
 	}
 
 	public function getStateBitmask() : int{
@@ -55,8 +61,8 @@ class Fire extends Flowable{
 
 	/** @return $this */
 	public function setAge(int $age) : self{
-		if($age < 0 || $age > 15){
-			throw new \InvalidArgumentException("Age must be in range 0-15");
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
 		}
 		$this->age = $age;
 		return $this;
@@ -94,7 +100,7 @@ class Fire extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->getSide(Facing::DOWN)->isSolid() and !$this->hasAdjacentFlammableBlocks()){
+		if($this->getSide(Facing::DOWN)->isTransparent() && !$this->hasAdjacentFlammableBlocks()){
 			$this->position->getWorld()->setBlock($this->position, VanillaBlocks::AIR());
 		}else{
 			$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(30, 40));
@@ -109,7 +115,7 @@ class Fire extends Flowable{
 		$down = $this->getSide(Facing::DOWN);
 
 		$result = null;
-		if($this->age < 15 and mt_rand(0, 2) === 0){
+		if($this->age < self::MAX_AGE && mt_rand(0, 2) === 0){
 			$this->age++;
 			$result = $this;
 		}
@@ -117,14 +123,14 @@ class Fire extends Flowable{
 
 		if(!$down->burnsForever()){
 			//TODO: check rain
-			if($this->age === 15){
-				if(!$down->isFlammable() and mt_rand(0, 3) === 3){ //1/4 chance to extinguish
+			if($this->age === self::MAX_AGE){
+				if(!$down->isFlammable() && mt_rand(0, 3) === 3){ //1/4 chance to extinguish
 					$canSpread = false;
 					$result = VanillaBlocks::AIR();
 				}
 			}elseif(!$this->hasAdjacentFlammableBlocks()){
 				$canSpread = false;
-				if(!$down->isSolid() or $this->age > 3){
+				if($down->isTransparent() || $this->age > 3){
 					$result = VanillaBlocks::AIR();
 				}
 			}
@@ -137,17 +143,8 @@ class Fire extends Flowable{
 		$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, mt_rand(30, 40));
 
 		if($canSpread){
-			//TODO: raise upper bound for chance in humid biomes
-
-			foreach($this->getHorizontalSides() as $side){
-				$this->burnBlock($side, 300);
-			}
-
-			//vanilla uses a 250 upper bound here, but I don't think they intended to increase the chance of incineration
-			$this->burnBlock($this->getSide(Facing::UP), 350);
-			$this->burnBlock($this->getSide(Facing::DOWN), 350);
-
-			//TODO: fire spread
+			$this->burnBlocksAround();
+			$this->spreadFire();
 		}
 	}
 
@@ -165,6 +162,18 @@ class Fire extends Flowable{
 		return false;
 	}
 
+	private function burnBlocksAround() : void{
+		//TODO: raise upper bound for chance in humid biomes
+
+		foreach($this->getHorizontalSides() as $side){
+			$this->burnBlock($side, 300);
+		}
+
+		//vanilla uses a 250 upper bound here, but I don't think they intended to increase the chance of incineration
+		$this->burnBlock($this->getSide(Facing::UP), 350);
+		$this->burnBlock($this->getSide(Facing::DOWN), 350);
+	}
+
 	private function burnBlock(Block $block, int $chanceBound) : void{
 		if(mt_rand(0, $chanceBound) < $block->getFlammability()){
 			$ev = new BlockBurnEvent($block, $this);
@@ -172,14 +181,87 @@ class Fire extends Flowable{
 			if(!$ev->isCancelled()){
 				$block->onIncinerate();
 
-				if(mt_rand(0, $this->age + 9) < 5){ //TODO: check rain
-					$fire = clone $this;
-					$fire->age = min(15, $fire->age + (mt_rand(0, 4) >> 2));
-					$this->position->getWorld()->setBlock($block->position, $fire);
-				}else{
-					$this->position->getWorld()->setBlock($block->position, VanillaBlocks::AIR());
+				if($this->position->getWorld()->getBlock($block->getPosition())->isSameState($block)){
+					$spreadedFire = false;
+					if(mt_rand(0, $this->age + 9) < 5){ //TODO: check rain
+						$fire = clone $this;
+						$fire->age = min(self::MAX_AGE, $fire->age + (mt_rand(0, 4) >> 2));
+						$spreadedFire = $this->spreadBlock($block, $fire);
+					}
+					if(!$spreadedFire){
+						$this->position->getWorld()->setBlock($block->position, VanillaBlocks::AIR());
+					}
 				}
 			}
 		}
 	}
+
+	private function spreadFire() : void{
+		$world = $this->position->getWorld();
+		$difficultyChanceIncrease = $world->getDifficulty() * 7;
+		$ageDivisor = $this->age + 30;
+
+		for($y = -1; $y <= 4; ++$y){
+			$targetY = $y + (int) $this->position->y;
+			if($targetY < World::Y_MIN || $targetY >= World::Y_MAX){
+				continue;
+			}
+			//Higher blocks have a lower chance of catching fire
+			$randomBound = 100 + ($y > 1 ? ($y - 1) * 100 : 0);
+
+			for($z = -1; $z <= 1; ++$z){
+				$targetZ = $z + (int) $this->position->z;
+				for($x = -1; $x <= 1; ++$x){
+					if($x === 0 && $y === 0 && $z === 0){
+						continue;
+					}
+					$targetX = $x + (int) $this->position->x;
+					if(!$world->isInWorld($targetX, $targetY, $targetZ)){
+						continue;
+					}
+
+					if(!$world->isChunkLoaded($targetX >> Chunk::COORD_BIT_SIZE, $targetZ >> Chunk::COORD_BIT_SIZE)){
+						continue;
+					}
+					$block = $world->getBlockAt($targetX, $targetY, $targetZ);
+					if($block->getId() !== BlockLegacyIds::AIR){
+						continue;
+					}
+
+					//TODO: fire can't spread if it's raining in any horizontally adjacent block, or the current one
+
+					$encouragement = 0;
+					foreach($block->position->sides() as $vector3){
+						if($world->isInWorld($vector3->x, $vector3->y, $vector3->z)){
+							$encouragement = max($encouragement, $world->getBlockAt($vector3->x, $vector3->y, $vector3->z)->getFlameEncouragement());
+						}
+					}
+
+					if($encouragement <= 0){
+						continue;
+					}
+
+					$maxChance = intdiv($encouragement + 40 + $difficultyChanceIncrease, $ageDivisor);
+					//TODO: max chance is lowered by half in humid biomes
+
+					if($maxChance > 0 && mt_rand(0, $randomBound - 1) <= $maxChance){
+						$new = clone $this;
+						$new->age = min(self::MAX_AGE, $this->age + (mt_rand(0, 4) >> 2));
+						$this->spreadBlock($block, $new);
+					}
+				}
+			}
+		}
+	}
+
+	private function spreadBlock(Block $block, Block $newState) : bool{
+		$ev = new BlockSpreadEvent($block, $this, $newState);
+		$ev->call();
+		if(!$ev->isCancelled()){
+			$block->position->getWorld()->setBlock($block->position, $ev->getNewState());
+			return true;
+		}
+
+		return false;
+	}
 }

src/block/FloorCoralFan.php

@@ -29,6 +29,7 @@ use pocketmine\item\Item;
 use pocketmine\item\ItemFactory;
 use pocketmine\item\ItemIds;
 use pocketmine\math\Axis;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
@@ -93,7 +94,7 @@ final class FloorCoralFan extends BaseCoral{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$tx->fetchBlock($blockReplace->getPosition()->down())->isSolid()){
+		if(!$this->canBeSupportedBy($tx->fetchBlock($blockReplace->getPosition()->down()))){
 			return false;
 		}
 		if($player !== null){
@@ -112,11 +113,15 @@ final class FloorCoralFan extends BaseCoral{
 
 	public function onNearbyBlockChange() : void{
 		$world = $this->position->getWorld();
-		if(!$world->getBlock($this->position->down())->isSolid()){
+		if(!$this->canBeSupportedBy($world->getBlock($this->position->down()))){
 			$world->useBreakOn($this->position);
 		}else{
 			parent::onNearbyBlockChange();
 		}
 	}
 
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::UP)->hasCenterSupport();
+	}
+
 }

src/block/Flowable.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SupportType;
 use pocketmine\math\AxisAlignedBB;
 
 abstract class Flowable extends Transparent{
@@ -41,4 +42,8 @@ abstract class Flowable extends Transparent{
 	protected function recalculateCollisionBoxes() : array{
 		return [];
 	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
 }

src/block/Flower.php

@@ -33,7 +33,7 @@ class Flower extends Flowable{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$down = $this->getSide(Facing::DOWN);
-		if($down->getId() === BlockLegacyIds::GRASS or $down->getId() === BlockLegacyIds::DIRT or $down->getId() === BlockLegacyIds::FARMLAND){
+		if($down->getId() === BlockLegacyIds::GRASS || $down->getId() === BlockLegacyIds::DIRT || $down->getId() === BlockLegacyIds::FARMLAND){
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
 

src/block/FlowerPot.php

@@ -69,7 +69,7 @@ class FlowerPot extends Flowable{
 
 	/** @return $this */
 	public function setPlant(?Block $plant) : self{
-		if($plant === null or $plant instanceof Air){
+		if($plant === null || $plant instanceof Air){
 			$this->plant = null;
 		}else{
 			$this->plant = clone $plant;
@@ -82,13 +82,17 @@ class FlowerPot extends Flowable{
 			return false;
 		}
 
+		return $this->isValidPlant($block);
+	}
+
+	private function isValidPlant(Block $block) : bool{
 		return
-			$block instanceof Cactus or
-			$block instanceof DeadBush or
-			$block instanceof Flower or
-			$block instanceof RedMushroom or
-			$block instanceof Sapling or
-			($block instanceof TallGrass and $block->getIdInfo()->getVariant() === BlockLegacyMetadata::TALLGRASS_FERN); //TODO: clean up
+			$block instanceof Cactus ||
+			$block instanceof DeadBush ||
+			$block instanceof Flower ||
+			$block instanceof RedMushroom ||
+			$block instanceof Sapling ||
+			($block instanceof TallGrass && $block->getIdInfo()->getVariant() === BlockLegacyMetadata::TALLGRASS_FERN); //TODO: clean up
 		//TODO: bamboo
 	}
 
@@ -100,7 +104,7 @@ class FlowerPot extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($this->getSide(Facing::DOWN)->isTransparent()){
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN))){
 			return false;
 		}
 
@@ -108,22 +112,46 @@ class FlowerPot extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if($this->getSide(Facing::DOWN)->isTransparent()){
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN))){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}
 
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->getSupportType(Facing::UP)->hasCenterSupport();
+	}
+
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$plant = $item->getBlock();
-		if(!$this->canAddPlant($plant)){
-			return false;
+		if($this->plant !== null){
+			if($this->isValidPlant($plant)){
+				//for some reason, vanilla doesn't remove the contents of the pot if the held item is plantable
+				//and will also cause a new plant to be placed if clicking on the side
+				return false;
+			}
+
+			$removedItems = [$this->plant->asItem()];
+			if($player !== null){
+				//this one just has to be a weirdo :(
+				//this is the only block that directly adds items to the player inventory instead of just dropping items
+				$removedItems = $player->getInventory()->addItem(...$removedItems);
+			}
+			foreach($removedItems as $drops){
+				$this->position->getWorld()->dropItem($this->position->add(0.5, 0.5, 0.5), $drops);
+			}
+
+			$this->setPlant(null);
+			$this->position->getWorld()->setBlock($this->position, $this);
+			return true;
+		}elseif($this->isValidPlant($plant)){
+			$this->setPlant($plant);
+			$item->pop();
+			$this->position->getWorld()->setBlock($this->position, $this);
+
+			return true;
 		}
 
-		$this->setPlant($plant);
-		$item->pop();
-		$this->position->getWorld()->setBlock($this->position, $this);
-
-		return true;
+		return false;
 	}
 
 	public function getDropsForCompatibleTool(Item $item) : array{

src/block/FrostedIce.php

@@ -24,14 +24,16 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\event\block\BlockMeltEvent;
 use function mt_rand;
 
 class FrostedIce extends Ice{
+	public const MAX_AGE = 3;
 
 	protected int $age = 0;
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, 3);
+		$this->age = BlockDataSerializer::readBoundedInt("age", $stateMeta, 0, self::MAX_AGE);
 	}
 
 	protected function writeStateToMeta() : int{
@@ -46,8 +48,8 @@ class FrostedIce extends Ice{
 
 	/** @return $this */
 	public function setAge(int $age) : self{
-		if($age < 0 || $age > 3){
-			throw new \InvalidArgumentException("Age must be in range 0-3");
+		if($age < 0 || $age > self::MAX_AGE){
+			throw new \InvalidArgumentException("Age must be in range 0 ... " . self::MAX_AGE);
 		}
 		$this->age = $age;
 		return $this;
@@ -62,7 +64,7 @@ class FrostedIce extends Ice{
 	}
 
 	public function onRandomTick() : void{
-		if((!$this->checkAdjacentBlocks(4) or mt_rand(0, 2) === 0) and
+		if((!$this->checkAdjacentBlocks(4) || mt_rand(0, 2) === 0) &&
 			$this->position->getWorld()->getHighestAdjacentFullLightAt($this->position->x, $this->position->y, $this->position->z) >= 12 - $this->age){
 			if($this->tryMelt()){
 				foreach($this->getAllSides() as $block){
@@ -84,11 +86,11 @@ class FrostedIce extends Ice{
 		$found = 0;
 		for($x = -1; $x <= 1; ++$x){
 			for($z = -1; $z <= 1; ++$z){
-				if($x === 0 and $z === 0){
+				if($x === 0 && $z === 0){
 					continue;
 				}
 				if(
-					$this->position->getWorld()->getBlockAt($this->position->x + $x, $this->position->y, $this->position->z + $z) instanceof FrostedIce and
+					$this->position->getWorld()->getBlockAt($this->position->x + $x, $this->position->y, $this->position->z + $z) instanceof FrostedIce &&
 					++$found >= $requirement
 				){
 					return true;
@@ -104,8 +106,12 @@ class FrostedIce extends Ice{
 	 * @return bool Whether the ice was destroyed.
 	 */
 	private function tryMelt() : bool{
-		if($this->age >= 3){
-			$this->position->getWorld()->useBreakOn($this->position);
+		if($this->age >= self::MAX_AGE){
+			$ev = new BlockMeltEvent($this, VanillaBlocks::WATER());
+			$ev->call();
+			if(!$ev->isCancelled()){
+				$this->position->getWorld()->setBlock($this->position, $ev->getNewState());
+			}
 			return true;
 		}
 

src/block/Furnace.php

@@ -29,6 +29,7 @@ use pocketmine\block\utils\NormalHorizontalFacingInMetadataTrait;
 use pocketmine\item\Item;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
+use function mt_rand;
 
 class Furnace extends Opaque{
 	use FacesOppositePlacingPlayerTrait;
@@ -73,7 +74,7 @@ class Furnace extends Opaque{
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player instanceof Player){
 			$furnace = $this->position->getWorld()->getTile($this->position);
-			if($furnace instanceof TileFurnace and $furnace->canOpenWith($item->getCustomName())){
+			if($furnace instanceof TileFurnace && $furnace->canOpenWith($item->getCustomName())){
 				$player->setCurrentWindow($furnace->getInventory());
 			}
 		}
@@ -83,7 +84,10 @@ class Furnace extends Opaque{
 
 	public function onScheduledUpdate() : void{
 		$furnace = $this->position->getWorld()->getTile($this->position);
-		if($furnace instanceof TileFurnace and $furnace->onUpdate()){
+		if($furnace instanceof TileFurnace && $furnace->onUpdate()){
+			if(mt_rand(1, 60) === 1){ //in vanilla this is between 1 and 5 seconds; try to average about 3
+				$this->position->getWorld()->addSound($this->position, $furnace->getFurnaceType()->getCookSound());
+			}
 			$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, 1); //TODO: check this
 		}
 	}

src/block/Grass.php

@@ -33,6 +33,7 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\utils\Random;
 use pocketmine\world\generator\object\TallGrass as TallGrassObject;
+use pocketmine\world\sound\ItemUseOnBlockSound;
 use function mt_rand;
 
 class Grass extends Opaque{
@@ -53,7 +54,7 @@ class Grass extends Opaque{
 
 	public function onRandomTick() : void{
 		$lightAbove = $this->position->getWorld()->getFullLightAt($this->position->x, $this->position->y + 1, $this->position->z);
-		if($lightAbove < 4 and $this->position->getWorld()->getBlockAt($this->position->x, $this->position->y + 1, $this->position->z)->getLightFilter() >= 2){
+		if($lightAbove < 4 && $this->position->getWorld()->getBlockAt($this->position->x, $this->position->y + 1, $this->position->z)->getLightFilter() >= 2){
 			//grass dies
 			$ev = new BlockSpreadEvent($this, $this, VanillaBlocks::DIRT());
 			$ev->call();
@@ -69,9 +70,9 @@ class Grass extends Opaque{
 
 				$b = $this->position->getWorld()->getBlockAt($x, $y, $z);
 				if(
-					!($b instanceof Dirt) or
-					$b->isCoarse() or
-					$this->position->getWorld()->getFullLightAt($x, $y + 1, $z) < 4 or
+					!($b instanceof Dirt) ||
+					$b->isCoarse() ||
+					$this->position->getWorld()->getFullLightAt($x, $y + 1, $z) < 4 ||
 					$this->position->getWorld()->getBlockAt($x, $y + 1, $z)->getLightFilter() >= 2
 				){
 					continue;
@@ -97,12 +98,16 @@ class Grass extends Opaque{
 			return true;
 		}elseif($item instanceof Hoe){
 			$item->applyDamage(1);
-			$this->position->getWorld()->setBlock($this->position, VanillaBlocks::FARMLAND());
+			$newBlock = VanillaBlocks::FARMLAND();
+			$this->position->getWorld()->addSound($this->position->add(0.5, 0.5, 0.5), new ItemUseOnBlockSound($newBlock));
+			$this->position->getWorld()->setBlock($this->position, $newBlock);
 
 			return true;
-		}elseif($item instanceof Shovel and $this->getSide(Facing::UP)->getId() === BlockLegacyIds::AIR){
+		}elseif($item instanceof Shovel && $this->getSide(Facing::UP)->getId() === BlockLegacyIds::AIR){
 			$item->applyDamage(1);
-			$this->position->getWorld()->setBlock($this->position, VanillaBlocks::GRASS_PATH());
+			$newBlock = VanillaBlocks::GRASS_PATH();
+			$this->position->getWorld()->addSound($this->position->add(0.5, 0.5, 0.5), new ItemUseOnBlockSound($newBlock));
+			$this->position->getWorld()->setBlock($this->position, $newBlock);
 
 			return true;
 		}

src/block/HayBale.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\PillarRotationInMetadataTrait;
+use pocketmine\entity\Entity;
 
 class HayBale extends Opaque{
 	use PillarRotationInMetadataTrait;
@@ -35,4 +36,9 @@ class HayBale extends Opaque{
 	public function getFlammability() : int{
 		return 20;
 	}
+
+	public function onEntityLand(Entity $entity) : ?float{
+		$entity->fallDistance *= 0.2;
+		return null;
+	}
 }

src/block/Hopper.php

@@ -27,6 +27,7 @@ use pocketmine\block\tile\Hopper as TileHopper;
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\InvalidBlockStateException;
 use pocketmine\block\utils\PoweredByRedstoneTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
@@ -78,6 +79,14 @@ class Hopper extends Transparent{
 		return $result;
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return match($facing){
+			Facing::UP => SupportType::FULL(),
+			Facing::DOWN => $this->facing === Facing::DOWN ? SupportType::CENTER() : SupportType::NONE(),
+			default => SupportType::NONE()
+		};
+	}
+
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->facing = $face === Facing::DOWN ? Facing::DOWN : Facing::opposite($face);
 

src/block/Ice.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\event\block\BlockMeltEvent;
 use pocketmine\item\enchantment\VanillaEnchantments;
 use pocketmine\item\Item;
 use pocketmine\player\Player;
@@ -38,7 +39,7 @@ class Ice extends Transparent{
 	}
 
 	public function onBreak(Item $item, ?Player $player = null) : bool{
-		if(($player === null or $player->isSurvival()) and !$item->hasEnchantment(VanillaEnchantments::SILK_TOUCH())){
+		if(($player === null || $player->isSurvival()) && !$item->hasEnchantment(VanillaEnchantments::SILK_TOUCH())){
 			$this->position->getWorld()->setBlock($this->position, VanillaBlocks::WATER());
 			return true;
 		}
@@ -51,7 +52,11 @@ class Ice extends Transparent{
 
 	public function onRandomTick() : void{
 		if($this->position->getWorld()->getHighestAdjacentBlockLight($this->position->x, $this->position->y, $this->position->z) >= 12){
-			$this->position->getWorld()->useBreakOn($this->position);
+			$ev = new BlockMeltEvent($this, VanillaBlocks::WATER());
+			$ev->call();
+			if(!$ev->isCancelled()){
+				$this->position->getWorld()->setBlock($this->position, $ev->getNewState());
+			}
 		}
 	}
 

src/block/ItemFrame.php

@@ -31,6 +31,8 @@ use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
+use function is_infinite;
+use function is_nan;
 use function lcg_value;
 
 class ItemFrame extends Flowable{
@@ -86,7 +88,7 @@ class ItemFrame extends Flowable{
 
 	/** @return $this */
 	public function setFramedItem(?Item $item) : self{
-		if($item === null or $item->isNull()){
+		if($item === null || $item->isNull()){
 			$this->framedItem = null;
 			$this->itemRotation = 0;
 		}else{
@@ -111,6 +113,9 @@ class ItemFrame extends Flowable{
 
 	/** @return $this */
 	public function setItemDropChance(float $itemDropChance) : self{
+		if($itemDropChance < 0.0 || $itemDropChance > 1.0 || is_nan($itemDropChance) || is_infinite($itemDropChance)){
+			throw new \InvalidArgumentException("Drop chance must be in range 0-1");
+		}
 		$this->itemDropChance = $itemDropChance;
 		return $this;
 	}
@@ -161,7 +166,7 @@ class ItemFrame extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($face === Facing::DOWN or $face === Facing::UP or !$blockClicked->isSolid()){
+		if($face === Facing::DOWN || $face === Facing::UP || !$blockClicked->isSolid()){
 			return false;
 		}
 
@@ -172,7 +177,7 @@ class ItemFrame extends Flowable{
 
 	public function getDropsForCompatibleTool(Item $item) : array{
 		$drops = parent::getDropsForCompatibleTool($item);
-		if($this->framedItem !== null and lcg_value() <= $this->itemDropChance){
+		if($this->framedItem !== null && lcg_value() <= $this->itemDropChance){
 			$drops[] = clone $this->framedItem;
 		}
 

src/block/Ladder.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\NormalHorizontalFacingInMetadataTrait;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\Entity;
 use pocketmine\entity\Living;
 use pocketmine\item\Item;
@@ -64,8 +65,12 @@ class Ladder extends Transparent{
 		return [AxisAlignedBB::one()->trim($this->facing, 13 / 16)];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$blockClicked->isTransparent() and Facing::axis($face) !== Axis::Y){
+		if($this->canBeSupportedBy($blockClicked, $face) && Facing::axis($face) !== Axis::Y){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
@@ -74,8 +79,12 @@ class Ladder extends Transparent{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->getSide(Facing::opposite($this->facing))->isSolid()){ //Replace with common break method
+		if(!$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)), $this->facing)){ //Replace with common break method
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}
+
+	private function canBeSupportedBy(Block $block, int $face) : bool{
+		return $block->getSupportType($face)->equals(SupportType::FULL());
+	}
 }

src/block/Lantern.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\Axis;
 use pocketmine\math\AxisAlignedBB;
@@ -72,22 +73,27 @@ class Lantern extends Transparent{
 		];
 	}
 
-	protected function canAttachTo(Block $b) : bool{
-		return !$b->isTransparent();
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->up())) and !$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->down()))){
+		if(!$this->canBeSupportedBy($blockReplace->getSide(Facing::UP), Facing::DOWN) && !$this->canBeSupportedBy($blockReplace->getSide(Facing::DOWN), Facing::UP)){
 			return false;
 		}
 
-		$this->hanging = ($face === Facing::DOWN or !$this->canAttachTo($this->position->getWorld()->getBlock($blockReplace->getPosition()->down())));
+		$this->hanging = ($face === Facing::DOWN || !$this->canBeSupportedBy($this->position->getWorld()->getBlock($blockReplace->getPosition()->down()), Facing::UP));
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->canAttachTo($this->position->getWorld()->getBlock($this->hanging ? $this->position->up() : $this->position->down()))){
+		$face = $this->hanging ? Facing::UP : Facing::DOWN;
+		if(!$this->canBeSupportedBy($this->getSide($face), Facing::opposite($face))){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}
+
+	private function canBeSupportedBy(Block $block, int $face) : bool{
+		return $block->getSupportType($face)->hasCenterSupport();
+	}
 }

src/block/Lava.php

@@ -91,8 +91,6 @@ class Lava extends Liquid{
 	}
 
 	public function onEntityInside(Entity $entity) : bool{
-		$entity->fallDistance *= 0.5;
-
 		$ev = new EntityDamageByBlockEvent($this, $entity, EntityDamageEvent::CAUSE_LAVA, 4);
 		$entity->attack($ev);
 

src/block/Leaves.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SupportType;
 use pocketmine\block\utils\TreeType;
 use pocketmine\event\block\LeavesDecayEvent;
 use pocketmine\item\Item;
@@ -96,7 +97,7 @@ class Leaves extends Transparent{
 			return true;
 		}
 
-		if($block->getId() === $this->getId() and $distance <= 4){
+		if($block->getId() === $this->getId() && $distance <= 4){
 			foreach(Facing::ALL as $side){
 				if($this->findLog($pos->getSide($side), $visited, $distance + 1)){
 					return true;
@@ -108,7 +109,7 @@ class Leaves extends Transparent{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->noDecay and !$this->checkDecay){
+		if(!$this->noDecay && !$this->checkDecay){
 			$this->checkDecay = true;
 			$this->position->getWorld()->setBlock($this->position, $this, false);
 		}
@@ -119,10 +120,10 @@ class Leaves extends Transparent{
 	}
 
 	public function onRandomTick() : void{
-		if(!$this->noDecay and $this->checkDecay){
+		if(!$this->noDecay && $this->checkDecay){
 			$ev = new LeavesDecayEvent($this);
 			$ev->call();
-			if($ev->isCancelled() or $this->findLog($this->position)){
+			if($ev->isCancelled() || $this->findLog($this->position)){
 				$this->checkDecay = false;
 				$this->position->getWorld()->setBlock($this->position, $this, false);
 			}else{
@@ -145,9 +146,12 @@ class Leaves extends Transparent{
 		if(mt_rand(1, 20) === 1){ //Saplings
 			$drops[] = ItemFactory::getInstance()->get(ItemIds::SAPLING, $this->treeType->getMagicNumber());
 		}
-		if(($this->treeType->equals(TreeType::OAK()) or $this->treeType->equals(TreeType::DARK_OAK())) and mt_rand(1, 200) === 1){ //Apples
+		if(($this->treeType->equals(TreeType::OAK()) || $this->treeType->equals(TreeType::DARK_OAK())) && mt_rand(1, 200) === 1){ //Apples
 			$drops[] = VanillaItems::APPLE();
 		}
+		if(mt_rand(1, 50) === 1){
+			$drops[] = VanillaItems::STICK()->setCount(mt_rand(1, 2));
+		}
 
 		return $drops;
 	}
@@ -163,4 +167,8 @@ class Leaves extends Transparent{
 	public function getFlammability() : int{
 		return 60;
 	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
 }

src/block/Lectern.php

@@ -0,0 +1,171 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+*/
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\block\tile\Lectern as TileLectern;
+use pocketmine\block\utils\BlockDataSerializer;
+use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
+use pocketmine\item\Item;
+use pocketmine\item\WritableBookBase;
+use pocketmine\math\AxisAlignedBB;
+use pocketmine\math\Facing;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\sound\LecternPlaceBookSound;
+use function count;
+
+class Lectern extends Transparent{
+	use FacesOppositePlacingPlayerTrait;
+	use HorizontalFacingTrait;
+
+	protected int $viewedPage = 0;
+	protected ?WritableBookBase $book = null;
+	protected bool $producingSignal = false;
+
+	public function readStateFromData(int $id, int $stateMeta) : void{
+		$this->facing = BlockDataSerializer::readLegacyHorizontalFacing($stateMeta & 0x03);
+		$this->producingSignal = ($stateMeta & BlockLegacyMetadata::LECTERN_FLAG_POWERED) !== 0;
+	}
+
+	public function writeStateToMeta() : int{
+		return BlockDataSerializer::writeLegacyHorizontalFacing($this->facing) | ($this->producingSignal ? BlockLegacyMetadata::LECTERN_FLAG_POWERED : 0);
+	}
+
+	public function readStateFromWorld() : void{
+		parent::readStateFromWorld();
+		$tile = $this->position->getWorld()->getTile($this->position);
+		if($tile instanceof TileLectern){
+			$this->viewedPage = $tile->getViewedPage();
+			$this->book = $tile->getBook();
+		}
+	}
+
+	public function writeStateToWorld() : void{
+		parent::writeStateToWorld();
+		$tile = $this->position->getWorld()->getTile($this->position);
+		if($tile instanceof TileLectern){
+			$tile->setViewedPage($this->viewedPage);
+			$tile->setBook($this->book);
+		}
+	}
+
+	public function getStateBitmask() : int{
+		return 0b111;
+	}
+
+	public function getFlammability() : int{
+		return 30;
+	}
+
+	public function getDrops(Item $item) : array{
+		$drops = parent::getDrops($item);
+		if($this->book !== null){
+			$drops[] = clone $this->book;
+		}
+
+		return $drops;
+	}
+
+	protected function recalculateCollisionBoxes() : array{
+		return [AxisAlignedBB::one()->trim(Facing::UP, 0.1)];
+	}
+
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
+	public function isProducingSignal() : bool{ return $this->producingSignal; }
+
+	/** @return $this */
+	public function setProducingSignal(bool $producingSignal) : self{
+		$this->producingSignal = $producingSignal;
+		return $this;
+	}
+
+	public function getViewedPage() : int{
+		return $this->viewedPage;
+	}
+
+	/** @return $this */
+	public function setViewedPage(int $viewedPage) : self{
+		$this->viewedPage = $viewedPage;
+		return $this;
+	}
+
+	public function getBook() : ?WritableBookBase{
+		return $this->book !== null ? clone $this->book : null;
+	}
+
+	/** @return $this */
+	public function setBook(?WritableBookBase $book) : self{
+		$this->book = $book !== null && !$book->isNull() ? (clone $book)->setCount(1) : null;
+		$this->viewedPage = 0;
+		return $this;
+	}
+
+	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if($this->book === null && $item instanceof WritableBookBase){
+			$this->position->getWorld()->setBlock($this->position, $this->setBook($item));
+			$this->position->getWorld()->addSound($this->position, new LecternPlaceBookSound());
+			$item->pop();
+		}
+		return true;
+	}
+
+	public function onAttack(Item $item, int $face, ?Player $player = null) : bool{
+		if($this->book !== null){
+			$this->position->getWorld()->dropItem($this->position->up(), $this->book);
+			$this->position->getWorld()->setBlock($this->position, $this->setBook(null));
+		}
+		return false;
+	}
+
+	public function onPageTurn(int $newPage) : bool{
+		if($newPage === $this->viewedPage){
+			return true;
+		}
+		if($this->book === null || $newPage >= count($this->book->getPages()) || $newPage < 0){
+			return false;
+		}
+
+		$this->viewedPage = $newPage;
+		if(!$this->producingSignal){
+			$this->producingSignal = true;
+			$this->position->getWorld()->scheduleDelayedBlockUpdate($this->position, 1);
+		}
+
+		$this->position->getWorld()->setBlock($this->position, $this);
+
+		return true;
+	}
+
+	public function onScheduledUpdate() : void{
+		if($this->producingSignal){
+			$this->producingSignal = false;
+			$this->position->getWorld()->setBlock($this->position, $this);
+		}
+	}
+}

src/block/Lever.php

@@ -96,7 +96,7 @@ class Lever extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$blockClicked->isSolid()){
+		if(!$this->canBeSupportedBy($blockClicked, $face)){
 			return false;
 		}
 
@@ -120,7 +120,8 @@ class Lever extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->getSide(Facing::opposite($this->facing->getFacing()))->isSolid()){
+		$facing = $this->facing->getFacing();
+		if(!$this->canBeSupportedBy($this->getSide(Facing::opposite($facing)), $facing)){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}
@@ -135,5 +136,9 @@ class Lever extends Flowable{
 		return true;
 	}
 
+	private function canBeSupportedBy(Block $block, int $face) : bool{
+		return $block->getSupportType($face)->hasCenterSupport();
+	}
+
 	//TODO
 }

src/block/Liquid.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockDataSerializer;
 use pocketmine\block\utils\MinimumCostFlowCalculator;
+use pocketmine\block\utils\SupportType;
 use pocketmine\entity\Entity;
 use pocketmine\event\block\BlockFormEvent;
 use pocketmine\event\block\BlockSpreadEvent;
@@ -37,6 +38,7 @@ use pocketmine\world\sound\Sound;
 use function lcg_value;
 
 abstract class Liquid extends Transparent{
+	public const MAX_DECAY = 7;
 
 	protected BlockIdentifierFlattened $idInfoFlattened;
 
@@ -62,7 +64,7 @@ abstract class Liquid extends Transparent{
 	}
 
 	public function readStateFromData(int $id, int $stateMeta) : void{
-		$this->decay = BlockDataSerializer::readBoundedInt("decay", $stateMeta & 0x07, 0, 7);
+		$this->decay = BlockDataSerializer::readBoundedInt("decay", $stateMeta & 0x07, 0, self::MAX_DECAY);
 		$this->falling = ($stateMeta & BlockLegacyMetadata::LIQUID_FLAG_FALLING) !== 0;
 		$this->still = $id === $this->idInfoFlattened->getSecondId();
 	}
@@ -83,6 +85,9 @@ abstract class Liquid extends Transparent{
 
 	/** @return $this */
 	public function setDecay(int $decay) : self{
+		if($decay < 0 || $decay > self::MAX_DECAY){
+			throw new \InvalidArgumentException("Decay must be in range 0 ... " . self::MAX_DECAY);
+		}
 		$this->decay = $decay;
 		return $this;
 	}
@@ -110,6 +115,10 @@ abstract class Liquid extends Transparent{
 		return [];
 	}
 
+	public function getSupportType(int $facing) : SupportType{
+		return SupportType::NONE();
+	}
+
 	public function getDropsForCompatibleTool(Item $item) : array{
 		return [];
 	}
@@ -131,7 +140,7 @@ abstract class Liquid extends Transparent{
 	abstract public function getBucketEmptySound() : Sound;
 
 	public function isSource() : bool{
-		return !$this->falling and $this->decay === 0;
+		return !$this->falling && $this->decay === 0;
 	}
 
 	/**
@@ -154,7 +163,7 @@ abstract class Liquid extends Transparent{
 	}
 
 	protected function getEffectiveFlowDecay(Block $block) : int{
-		if(!($block instanceof Liquid) or !$block->isSameType($this)){
+		if(!($block instanceof Liquid) || !$block->isSameType($this)){
 			return -1;
 		}
 
@@ -279,7 +288,7 @@ abstract class Liquid extends Transparent{
 			$newDecay = $smallestFlowDecay + $multiplier;
 			$falling = false;
 
-			if($newDecay >= 8 or $smallestFlowDecay < 0){
+			if($newDecay > self::MAX_DECAY || $smallestFlowDecay < 0){
 				$newDecay = -1;
 			}
 
@@ -290,14 +299,14 @@ abstract class Liquid extends Transparent{
 			$minAdjacentSources = $this->getMinAdjacentSourcesToFormSource();
 			if($minAdjacentSources !== null && $this->adjacentSources >= $minAdjacentSources){
 				$bottomBlock = $world->getBlockAt($this->position->x, $this->position->y - 1, $this->position->z);
-				if($bottomBlock->isSolid() or ($bottomBlock instanceof Liquid and $bottomBlock->isSameType($this) and $bottomBlock->isSource())){
+				if($bottomBlock->isSolid() || ($bottomBlock instanceof Liquid && $bottomBlock->isSameType($this) && $bottomBlock->isSource())){
 					$newDecay = 0;
 					$falling = false;
 				}
 			}
 
-			if($falling !== $this->falling or (!$falling and $newDecay !== $this->decay)){
-				if(!$falling and $newDecay < 0){
+			if($falling !== $this->falling || (!$falling && $newDecay !== $this->decay)){
+				if(!$falling && $newDecay < 0){
 					$world->setBlock($this->position, VanillaBlocks::AIR());
 					return;
 				}
@@ -312,14 +321,14 @@ abstract class Liquid extends Transparent{
 
 		$this->flowIntoBlock($bottomBlock, 0, true);
 
-		if($this->isSource() or !$bottomBlock->canBeFlowedInto()){
+		if($this->isSource() || !$bottomBlock->canBeFlowedInto()){
 			if($this->falling){
 				$adjacentDecay = 1; //falling liquid behaves like source block
 			}else{
 				$adjacentDecay = $this->decay + $multiplier;
 			}
 
-			if($adjacentDecay < 8){
+			if($adjacentDecay <= self::MAX_DECAY){
 				$calculator = new MinimumCostFlowCalculator($this->position->getWorld(), $this->getFlowDecayPerBlock(), \Closure::fromCallable([$this, 'canFlowInto']));
 				foreach($calculator->getOptimalFlowDirections($this->position->getFloorX(), $this->position->getFloorY(), $this->position->getFloorZ()) as $facing){
 					$this->flowIntoBlock($world->getBlock($this->position->getSide($facing)), $adjacentDecay, false);
@@ -331,7 +340,7 @@ abstract class Liquid extends Transparent{
 	}
 
 	protected function flowIntoBlock(Block $block, int $newFlowDecay, bool $falling) : void{
-		if($this->canFlowInto($block) and !($block instanceof Liquid)){
+		if($this->canFlowInto($block) && !($block instanceof Liquid)){
 			$new = clone $this;
 			$new->falling = $falling;
 			$new->decay = $falling ? 0 : $newFlowDecay;
@@ -339,7 +348,7 @@ abstract class Liquid extends Transparent{
 			$ev = new BlockSpreadEvent($block, $this, $new);
 			$ev->call();
 			if(!$ev->isCancelled()){
-				if($block->getId() > 0){
+				if($block->getId() !== BlockLegacyIds::AIR){
 					$this->position->getWorld()->useBreakOn($block->position);
 				}
 
@@ -350,7 +359,7 @@ abstract class Liquid extends Transparent{
 
 	/** @phpstan-impure */
 	private function getSmallestFlowDecay(Block $block, int $decay) : int{
-		if(!($block instanceof Liquid) or !$block->isSameType($this)){
+		if(!($block instanceof Liquid) || !$block->isSameType($this)){
 			return $decay;
 		}
 
@@ -381,8 +390,8 @@ abstract class Liquid extends Transparent{
 
 	protected function canFlowInto(Block $block) : bool{
 		return
-			$this->position->getWorld()->isInWorld($block->position->x, $block->position->y, $block->position->z) and
-			$block->canBeFlowedInto() and
-			!($block instanceof Liquid and $block->isSource()); //TODO: I think this should only be liquids of the same type
+			$this->position->getWorld()->isInWorld($block->position->x, $block->position->y, $block->position->z) &&
+			$block->canBeFlowedInto() &&
+			!($block instanceof Liquid && $block->isSource()); //TODO: I think this should only be liquids of the same type
 	}
 }

src/block/Magma.php

@@ -39,7 +39,7 @@ class Magma extends Opaque{
 	}
 
 	public function onEntityInside(Entity $entity) : bool{
-		if($entity instanceof Living and !$entity->isSneaking()){
+		if($entity instanceof Living && !$entity->isSneaking()){
 			$ev = new EntityDamageByBlockEvent($this, $entity, EntityDamageEvent::CAUSE_FIRE, 1);
 			$entity->attack($ev);
 		}