Release 4.18.0-ALPHA2

this allows for plugin extension, for example to implement anvils.

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

@@ -30,68 +30,68 @@ jobs:
         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 $VERSION | cut -d. -f1-2)
+          echo TAG_NAME=$VERSION >> $GITHUB_OUTPUT
+          echo MAJOR=$(echo $VERSION | cut -d. -f1) >> $GITHUB_OUTPUT
+          echo MINOR=$(echo $VERSION | cut -d. -f1-2) >> $GITHUB_OUTPUT
 
       - 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::$(jq -r '.channel' new_build_info.json)
+        run: echo CHANNEL=$(jq -r '.channel' new_build_info.json) >> $GITHUB_OUTPUT
 
       - name: Get name of Docker repository name
         id: docker-repo-name
-        run: echo ::set-output name=NAME::$(echo "${GITHUB_REPOSITORY,,}")
+        run: echo NAME=$(echo "${GITHUB_REPOSITORY,,}") >> $GITHUB_OUTPUT
 
       - name: Build image for tag
-        uses: docker/build-push-action@v3.2.0
+        uses: docker/build-push-action@v4.0.0
         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 }}
+            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@v3.2.0
+        uses: docker/build-push-action@v4.0.0
         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 }}
+            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@v3.2.0
+        uses: docker/build-push-action@v4.0.0
         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 }}
+            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@v3.2.0
+        uses: docker/build-push-action@v4.0.0
         with:
           push: true
           context: ./pocketmine-mp
           tags: |
             ${{ steps.docker-repo-name.outputs.NAME }}:latest
-#            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:latest
+            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/discord-release-embed.php

@@ -18,8 +18,9 @@ require dirname(__DIR__, 2) . '/vendor/autoload.php';
 /**
  * @phpstan-return array<string, mixed>
  */
-function generateDiscordEmbed(string $version, string $channel, string $description, string $detailsUrl, string $sourceUrl, string $pharDownloadUrl, string $buildLogUrl) : array{
+function generateDiscordEmbed(string $version, string $channel, string $description, string $detailsUrl, string $sourceUrl, string $pharDownloadUrl, string $buildLogUrl, int $newsPingRoleId) : array{
 	return [
+		"content" => "<@&$newsPingRoleId> New PocketMine-MP release: $version ($channel)",
 		"embeds" => [
 			[
 				"title" => "New PocketMine-MP release: $version ($channel)",
@@ -35,11 +36,11 @@ DESCRIPTION,
 	];
 }
 
-if(count($argv) !== 5){
-	fwrite(STDERR, "Required arguments: github repo, version, API token\n");
+if(count($argv) !== 6){
+	fwrite(STDERR, "Required arguments: github repo, version, API token, webhook URL, ping role ID\n");
 	exit(1);
 }
-[, $repo, $tagName, $token, $hookURL] = $argv;
+[, $repo, $tagName, $token, $hookURL, $newsPingRoleId] = $argv;
 
 $result = Internet::getURL('https://api.github.com/repos/' . $repo . '/releases/tags/' . $tagName, extraHeaders: [
 	'Authorization: token ' . $token
@@ -86,7 +87,7 @@ $buildLogUrl = $buildInfoJson["build_log_url"];
 
 $description = $releaseInfoJson["body"];
 
-$discordPayload = generateDiscordEmbed($buildInfoJson["base_version"], $buildInfoJson["channel"], $description, $detailsUrl, $sourceUrl, $pharDownloadUrl, $buildLogUrl);
+$discordPayload = generateDiscordEmbed($buildInfoJson["base_version"], $buildInfoJson["channel"], $description, $detailsUrl, $sourceUrl, $pharDownloadUrl, $buildLogUrl, (int) $newsPingRoleId);
 
 $response = Internet::postURL(
 	$hookURL,

.github/workflows/discord-release-notify.yml

@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Setup PHP and tools
-        uses: shivammathur/setup-php@2.23.0
+        uses: shivammathur/setup-php@2.24.0
         with:
           php-version: 8.0
 
@@ -32,7 +32,7 @@ jobs:
 
       - name: Get actual tag name
         id: tag-name
-        run: echo ::set-output name=TAG_NAME::$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{')
+        run: echo TAG_NAME=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{') >> $GITHUB_OUTPUT
 
       - name: Run webhook post script
-        run: php .github/workflows/discord-release-embed.php ${{ github.repository }} ${{ steps.tag-name.outputs.TAG_NAME }} ${{ github.token }} ${{ secrets.DISCORD_RELEASE_WEBHOOK }}
+        run: php .github/workflows/discord-release-embed.php ${{ github.repository }} ${{ steps.tag-name.outputs.TAG_NAME }} ${{ github.token }} ${{ secrets.DISCORD_RELEASE_WEBHOOK }} ${{ secrets.DISCORD_NEWS_PING_ROLE_ID }}

.github/workflows/draft-release.yml

@@ -18,7 +18,7 @@ jobs:
           submodules: true
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.23.0
+        uses: shivammathur/setup-php@2.24.0
         with:
           php-version: 8.0
 
@@ -40,7 +40,7 @@ jobs:
         run: |
           BUILD_NUMBER=$((2000+$GITHUB_RUN_NUMBER)) #to stay above jenkins
           echo "Build number: $BUILD_NUMBER"
-          echo ::set-output name=BUILD_NUMBER::$BUILD_NUMBER
+          echo BUILD_NUMBER=$BUILD_NUMBER >> $GITHUB_OUTPUT
 
       - name: Minify BedrockData JSON files
         run: php vendor/pocketmine/bedrock-data/.minify_json.php
@@ -51,10 +51,12 @@ jobs:
       - name: Get PocketMine-MP release version
         id: get-pm-version
         run: |
-          echo ::set-output name=PM_VERSION::$(php -r 'require "vendor/autoload.php"; echo \pocketmine\VersionInfo::BASE_VERSION;')
-          echo ::set-output name=MCPE_VERSION::$(php -r 'require "vendor/autoload.php"; echo \pocketmine\network\mcpe\protocol\ProtocolInfo::MINECRAFT_VERSION_NETWORK;')
-          echo ::set-output name=PM_VERSION_SHORT::$(php -r 'require "vendor/autoload.php"; $v = explode(".", \pocketmine\VersionInfo::BASE_VERSION); array_pop($v); echo implode(".", $v);')
-          echo ::set-output name=PM_VERSION_MD::$(php -r 'require "vendor/autoload.php"; echo str_replace(".", "", \pocketmine\VersionInfo::BASE_VERSION);')
+          echo PM_VERSION=$(php -r 'require "vendor/autoload.php"; echo \pocketmine\VersionInfo::BASE_VERSION;') >> $GITHUB_OUTPUT
+          echo MCPE_VERSION=$(php -r 'require "vendor/autoload.php"; echo \pocketmine\network\mcpe\protocol\ProtocolInfo::MINECRAFT_VERSION_NETWORK;') >> $GITHUB_OUTPUT
+          echo PM_VERSION_SHORT=$(php -r 'require "vendor/autoload.php"; $v = explode(".", \pocketmine\VersionInfo::BASE_VERSION); array_pop($v); echo implode(".", $v);') >> $GITHUB_OUTPUT
+          echo PM_VERSION_MD=$(php -r 'require "vendor/autoload.php"; echo str_replace(".", "", \pocketmine\VersionInfo::BASE_VERSION);') >> $GITHUB_OUTPUT
+          echo CHANGELOG_SUFFIX=$(php -r 'require "vendor/autoload.php"; echo \pocketmine\VersionInfo::BUILD_CHANNEL === "stable" ? "" : "-" . \pocketmine\VersionInfo::BUILD_CHANNEL;') >> $GITHUB_OUTPUT
+          echo PRERELEASE=$(php -r 'require "vendor/autoload.php"; echo \pocketmine\VersionInfo::BUILD_CHANNEL === "stable" ? "false" : "true";') >> $GITHUB_OUTPUT
 
       - name: Generate build info
         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 }} ${{ github.run_id }} > build_info.json
@@ -74,10 +76,11 @@ jobs:
           artifacts: ${{ github.workspace }}/PocketMine-MP.phar,${{ github.workspace }}/start.*,${{ github.workspace }}/build_info.json
           commit: ${{ github.sha }}
           draft: true
+          prerelease: ${{ steps.get-pm-version.outputs.PRERELEASE }}
           name: PocketMine-MP ${{ steps.get-pm-version.outputs.PM_VERSION }}
           tag: ${{ steps.get-pm-version.outputs.PM_VERSION }}
           token: ${{ secrets.GITHUB_TOKEN }}
           body: |
             **For Minecraft: Bedrock Edition ${{ steps.get-pm-version.outputs.MCPE_VERSION }}**
 
-            Please see the [changelogs](${{ github.server_url }}/${{ github.repository }}/blob/${{ steps.get-pm-version.outputs.PM_VERSION }}/changelogs/${{ steps.get-pm-version.outputs.PM_VERSION_SHORT }}.md#${{ steps.get-pm-version.outputs.PM_VERSION_MD }}) for details.
+            Please see the [changelogs](${{ github.server_url }}/${{ github.repository }}/blob/${{ steps.get-pm-version.outputs.PM_VERSION }}/changelogs/${{ steps.get-pm-version.outputs.PM_VERSION_SHORT }}${{ steps.get-pm-version.outputs.CHANGELOG_SUFFIX }}.md#${{ steps.get-pm-version.outputs.PM_VERSION_MD }}) for details.

.github/workflows/main.yml

@@ -13,14 +13,15 @@ jobs:
     strategy:
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.23, 8.1.10]
+        php: [8.0.28, 8.1.16, 8.2.3]
 
     steps:
       - name: Build and prepare PHP cache
-        uses: pmmp/setup-php-action@82a44d659bf5046612c69f036af3e14dc32e3fa8
+        uses: pmmp/setup-php-action@6dd74c145250109942b08fc63cd5118edd2fd256
         with:
           php-version: ${{ matrix.php }}
           install-path: "./bin"
+          pm-version-major: "4"
 
   phpstan:
     name: PHPStan analysis
@@ -31,16 +32,17 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.23, 8.1.10]
+        php: [8.0.28, 8.1.16, 8.2.3]
 
     steps:
       - uses: actions/checkout@v3
 
       - name: Setup PHP
-        uses: pmmp/setup-php-action@82a44d659bf5046612c69f036af3e14dc32e3fa8
+        uses: pmmp/setup-php-action@6dd74c145250109942b08fc63cd5118edd2fd256
         with:
           php-version: ${{ matrix.php }}
           install-path: "./bin"
+          pm-version-major: "4"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
@@ -69,16 +71,17 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.23, 8.1.10]
+        php: [8.0.28, 8.1.16, 8.2.3]
 
     steps:
       - uses: actions/checkout@v3
 
       - name: Setup PHP
-        uses: pmmp/setup-php-action@82a44d659bf5046612c69f036af3e14dc32e3fa8
+        uses: pmmp/setup-php-action@6dd74c145250109942b08fc63cd5118edd2fd256
         with:
           php-version: ${{ matrix.php }}
           install-path: "./bin"
+          pm-version-major: "4"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
@@ -107,7 +110,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.23, 8.1.10]
+        php: [8.0.28, 8.1.16, 8.2.3]
 
     steps:
       - uses: actions/checkout@v3
@@ -115,10 +118,11 @@ jobs:
           submodules: true
 
       - name: Setup PHP
-        uses: pmmp/setup-php-action@82a44d659bf5046612c69f036af3e14dc32e3fa8
+        uses: pmmp/setup-php-action@6dd74c145250109942b08fc63cd5118edd2fd256
         with:
           php-version: ${{ matrix.php }}
           install-path: "./bin"
+          pm-version-major: "4"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
@@ -147,16 +151,17 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [8.0.23, 8.1.10]
+        php: [8.0.28, 8.1.16, 8.2.3]
 
     steps:
       - uses: actions/checkout@v3
 
       - name: Setup PHP
-        uses: pmmp/setup-php-action@82a44d659bf5046612c69f036af3e14dc32e3fa8
+        uses: pmmp/setup-php-action@6dd74c145250109942b08fc63cd5118edd2fd256
         with:
           php-version: ${{ matrix.php }}
           install-path: "./bin"
+          pm-version-major: "4"
 
       - name: Install Composer
         run: curl -sS https://getcomposer.org/installer | php
@@ -180,6 +185,9 @@ jobs:
       - name: Regenerate KnownTranslation APIs
         run: php build/generate-known-translation-apis.php
 
+      - name: Regenerate BedrockData available files constants
+        run: php build/generate-bedrockdata-path-consts.php
+
       - name: Verify code is unchanged
         run: |
           git diff
@@ -195,7 +203,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Setup PHP and tools
-        uses: shivammathur/setup-php@2.23.0
+        uses: shivammathur/setup-php@2.24.0
         with:
           php-version: 8.0
           tools: php-cs-fixer:3.11

.github/workflows/update-php-versions.php

@@ -23,7 +23,8 @@ declare(strict_types=1);
 
 const VERSIONS = [
 	"8.0",
-	"8.1"
+	"8.1",
+	"8.2"
 ];
 
 $workflowFile = file_get_contents(__DIR__ . '/main.yml');

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

@@ -15,23 +15,68 @@ jobs:
 
       - uses: actions/checkout@v3
         with:
-          repository: pmmp/update.pmmp.io
+          repository: ${{ github.repository_owner }}/update.pmmp.io
           ssh-key: ${{ secrets.UPDATE_PMMP_IO_DEPLOY_KEY }}
 
       - name: Get actual tag name
         id: tag-name
-        run: echo ::set-output name=TAG_NAME::$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{')
+        run: echo TAG_NAME=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{') >> $GITHUB_OUTPUT
 
       - 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
+      - name: Detect channels
         id: channel
-        run: echo ::set-output name=CHANNEL::$(jq -r '.channel' new_build_info.json)
-
-      - name: Copy release information
         run: |
-          cp new_build_info.json channels/${{ steps.channel.outputs.CHANNEL }}.json
+          CHANNEL=$(jq -r '.channel' new_build_info.json)
+          VERSION=${{ steps.tag-name.outputs.TAG_NAME }}
+          echo CHANNEL=$CHANNEL >> $GITHUB_OUTPUT
+          if [ "$CHANNEL" == "stable" ]; then
+            echo MAJOR=$(echo $VERSION | cut -d. -f1) >> $GITHUB_OUTPUT
+            echo MINOR=$(echo $VERSION | cut -d. -f1-2) >> $GITHUB_OUTPUT
+          else
+            echo MAJOR=$(echo $VERSION | cut -d. -f1)-$CHANNEL >> $GITHUB_OUTPUT
+            echo MINOR=$(echo $VERSION | cut -d. -f1-2)-$CHANNEL >> $GITHUB_OUTPUT
+          fi
+
+      - name: Update channel info
+        run: |
+          function version_id() {
+            major=$(echo $1 | cut -d. -f1)
+            minor=$(echo $1 | cut -d. -f2)
+            patch=$(echo $1 | cut -d. -f3)
+            echo $(((major * 1000000) + (minor * 1000) + patch))
+          }
+
+          function update_channel() {
+            local target_file_name="$1"
+            local new_file_name="$2"
+
+            local old_version_id
+            local new_version_id
+
+            if [ ! -f "$target_file_name" ]; then
+              echo "Creating channel file: $target_file_name"
+              cp "$new_file_name" "$target_file_name"
+            else
+              old_version_id=$(version_id "$(jq -r '.base_version' "$target_file_name")")
+              new_version_id=$(version_id "$(jq -r '.base_version' "$new_file_name")")
+
+              echo "Old version ID: $old_version_id"
+              echo "New version ID: $new_version_id"
+
+              if [ $new_version_id -ge $old_version_id ]; then #suffixed versions will have the same version ID - assume they'll always be newer
+                echo "Updating channel file: $target_file_name ($old_version_id -> $new_version_id)"
+                cp "$new_file_name" "$target_file_name"
+              else
+                echo "Version $new_version_id is less than $old_version_id, not updating channel file: $target_file_name"
+              fi
+            fi
+          }
+
+          update_channel "channels/${{ steps.channel.outputs.CHANNEL }}.json" "new_build_info.json"
+          update_channel "channels/${{ steps.channel.outputs.MAJOR }}.json" "new_build_info.json"
+          update_channel "channels/${{ steps.channel.outputs.MINOR }}.json" "new_build_info.json"
           rm new_build_info.json
 
       - name: Commit changes

CONTRIBUTING.md

@@ -21,7 +21,7 @@ Larger contributions like feature additions should be preceded by a [Change Prop
 ## Choosing a target branch
 PocketMine-MP has three primary branches of development.
 
-| Type of change | `stable` | `next-minor` | `next-major` |
+| Type of change | `stable` | `minor-next` | `major-next` |
 |:---------------|:--------:|:------------:|:------------:|
 | Bug fixes | ✔️ | ✔️ | ✔️ |
 | Improvements to API docs | ✔️ | ✔️ | ✔️ |

README.md

@@ -14,7 +14,6 @@
 <p align="center">
 	<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>
@@ -24,7 +23,7 @@
 ## Getting started
 - [Documentation](http://pmmp.readthedocs.org/)
 - [Installation instructions](https://pmmp.readthedocs.io/en/rtfd/installation.html)
-- [Docker image](https://hub.docker.com/r/pmmp/pocketmine-mp)
+- [Docker image](https://github.com/pmmp/PocketMine-MP/pkgs/container/pocketmine-mp)
 - [Plugin repository](https://poggit.pmmp.io/plugins)
 
 ## Discussion/Help

build/generate-bedrockdata-path-consts.php

@@ -0,0 +1,128 @@
+<?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\build\generate_bedrockdata_path_consts;
+
+use Symfony\Component\Filesystem\Path;
+use function dirname;
+use function fclose;
+use function fopen;
+use function fwrite;
+use function is_file;
+use function scandir;
+use function str_replace;
+use function strtoupper;
+use const PHP_EOL;
+use const pocketmine\BEDROCK_DATA_PATH;
+use const SCANDIR_SORT_ASCENDING;
+use const STDERR;
+
+require dirname(__DIR__) . '/vendor/autoload.php';
+
+function constantify(string $permissionName) : string{
+	return strtoupper(str_replace([".", "-"], "_", $permissionName));
+}
+
+$files = scandir(BEDROCK_DATA_PATH, SCANDIR_SORT_ASCENDING);
+if($files === false){
+	fwrite(STDERR, "Couldn't find any files in " . BEDROCK_DATA_PATH . PHP_EOL);
+	exit(1);
+}
+
+$consts = [];
+
+foreach($files as $file){
+	if($file === '.' || $file === '..'){
+		continue;
+	}
+	if($file[0] === '.'){
+		continue;
+	}
+	$path = Path::join(BEDROCK_DATA_PATH, $file);
+	if(!is_file($path)){
+		continue;
+	}
+
+	foreach([
+		'README.md',
+		'LICENSE',
+		'composer.json',
+	] as $ignored){
+		if($file === $ignored){
+			continue 2;
+		}
+	}
+
+	$consts[] = $file;
+}
+
+$output = fopen(dirname(__DIR__) . '/src/data/bedrock/BedrockDataFiles.php', 'wb');
+if($output === false){
+	fwrite(STDERR, "Couldn't open output file" . PHP_EOL);
+	exit(1);
+}
+fwrite($output, <<<'HEADER'
+<?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\data\bedrock;
+
+use const pocketmine\BEDROCK_DATA_PATH;
+
+final class BedrockDataFiles{
+	private function __construct(){
+		//NOOP
+	}
+
+
+HEADER
+);
+
+foreach($consts as $constName => $fileName){
+	fwrite($output, "\tpublic const " . constantify($fileName) . " = BEDROCK_DATA_PATH . '/$fileName';\n");
+}
+
+fwrite($output, "}\n");
+fclose($output);
+
+echo "Done. Don't forget to run CS fixup after generating code.\n";

build/generate-registry-annotations.php

@@ -36,8 +36,8 @@ use function ksort;
 use function mb_strtoupper;
 use function preg_match;
 use function sprintf;
+use function str_ends_with;
 use function str_replace;
-use function substr;
 use const SORT_STRING;
 use const STDERR;
 
@@ -121,7 +121,7 @@ require dirname(__DIR__) . '/vendor/autoload.php';
 if(is_dir($argv[1])){
 	/** @var string $file */
 	foreach(new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($argv[1], \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::CURRENT_AS_PATHNAME)) as $file){
-		if(substr($file, -4) !== ".php"){
+		if(!str_ends_with($file, ".php")){
 			continue;
 		}
 

build/make-release.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\build\make_release;
 
+use pocketmine\utils\Filesystem;
 use pocketmine\utils\Utils;
 use pocketmine\utils\VersionString;
 use pocketmine\VersionInfo;
@@ -30,17 +31,17 @@ use function array_keys;
 use function array_map;
 use function dirname;
 use function fgets;
-use function file_get_contents;
 use function file_put_contents;
 use function fwrite;
 use function getopt;
 use function is_string;
 use function max;
+use function preg_match;
 use function preg_replace;
-use function sleep;
 use function sprintf;
 use function str_pad;
 use function strlen;
+use function strtolower;
 use function system;
 use const STDERR;
 use const STDIN;
@@ -50,7 +51,7 @@ use const STR_PAD_LEFT;
 require_once dirname(__DIR__) . '/vendor/autoload.php';
 
 function replaceVersion(string $versionInfoPath, string $newVersion, bool $isDev, string $channel) : void{
-	$versionInfo = Utils::assumeNotFalse(file_get_contents($versionInfoPath), $versionInfoPath . " should always exist");
+	$versionInfo = Filesystem::fileGetContents($versionInfoPath);
 	$versionInfo = preg_replace(
 		$pattern = '/^([\t ]*public )?const BASE_VERSION = "(\d+)\.(\d+)\.(\d+)(?:-(.*))?";$/m',
 		'$1const BASE_VERSION = "' . $newVersion . '";',
@@ -102,22 +103,43 @@ function main() : void{
 		$filteredOpts[$optName] = $optValue;
 	}
 
+	$channel = $filteredOpts["channel"] ?? null;
 	if(isset($filteredOpts["current"])){
 		$currentVer = new VersionString($filteredOpts["current"]);
 	}else{
 		$currentVer = new VersionString(VersionInfo::BASE_VERSION);
 	}
-	if(isset($filteredOpts["next"])){
-		$nextVer = new VersionString($filteredOpts["next"]);
+
+	$nextVer = isset($filteredOpts["next"]) ? new VersionString($filteredOpts["next"]) : null;
+
+	$suffix = $currentVer->getSuffix();
+	if($suffix !== ""){
+		if($channel === "stable"){
+			fwrite(STDERR, "error: cannot release a suffixed build into the stable channel\n");
+			exit(1);
+		}
+		if(preg_match('/^([A-Za-z]+)(\d+)$/', $suffix, $matches) !== 1){
+			echo "error: invalid current version suffix \"$suffix\"; aborting\n";
+			exit(1);
+		}
+		$nextVer ??= new VersionString(sprintf(
+			"%u.%u.%u-%s%u",
+			$currentVer->getMajor(),
+			$currentVer->getMinor(),
+			$currentVer->getPatch(),
+			$matches[1],
+			((int) $matches[2]) + 1
+		));
+		$channel ??= strtolower($matches[1]);
 	}else{
-		$nextVer = new VersionString(sprintf(
+		$nextVer ??= new VersionString(sprintf(
 			"%u.%u.%u",
 			$currentVer->getMajor(),
 			$currentVer->getMinor(),
 			$currentVer->getPatch() + 1
 		));
+		$channel ??= "stable";
 	}
-	$channel = $filteredOpts["channel"] ?? VersionInfo::BUILD_CHANNEL;
 
 	echo "About to tag version $currentVer. Next version will be $nextVer.\n";
 	echo "$currentVer will be published on release channel \"$channel\".\n";
@@ -137,9 +159,6 @@ function main() : void{
 	replaceVersion($versionInfoPath, $nextVer->getBaseVersion(), true, $channel);
 	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);
-	systemWrapper('git push origin HEAD ' . $currentVer->getBaseVersion(), "failed to push changes to remote");
 }
 
 main();

changelogs/4.12.md

@@ -62,4 +62,58 @@ Released 8th January 2023.
 
 ## Fixes
 - Fixed players getting kicked when the server lags for too long.
-- Fixed players getting kicked when a debugging session is active and a breakpoint is hit.
+- Fixed players getting kicked when a debugging session is active and a breakpoint is hit.
+
+# 4.12.8
+Released 9th January 2023.
+
+## Fixes
+- Fixed players getting kicked during PvP.
+- Fixed players randomly getting kicked on Windows (improper rate limit handling wrt. 15ms timer resolution).
+
+# 4.12.9
+Released 16th January 2023.
+
+## Improvements
+### Timings
+- Added new timers:
+  - `Server Mid-Tick Processing` - time spent processing Snooze interrupts between ticks (e.g. incoming network packets)
+  - `Server Tick Update Cycle` - time spent processing regular per-tick updates (e.g. entity movement, world updates, etc.) (`Server->tick()`)
+- `Full Server Tick` timer now counts the total of `Server Mid-Tick Processing` and `Server Tick Update Cycle`, which generates more accurate performance metrics.
+  - Previously, this timer only counted the time spent during regular per-tick updates, and the time recorded by `Server Mid-Tick Processing` was not included in the report at all.
+
+## Fixes
+- Fixed blocks such as pressure plates being able to be placed without the correct supporting blocks if the clicked block was solid.
+- Pressure plates now self-destruct when the block below them is removed.
+- Fixed being unable to place blocks by clicking on the side of a bell (when the click doesn't result in ringing the bell).
+- Fixed various rotation-aware blocks (e.g. stairs) behaving incorrectly when placed by clicking on the side of a replaceable block (e.g. tall grass).
+- Fixed banners being able to be placed on top of blocks such as skulls.
+- Fixed server-side collision boxes of walls and glass (which should connect, but didn't). Note that wall connections still don't show client side - this just fixes the collision boxes.
+- Fixed `PlayerInteractEvent` with `LEFT_CLICK` sometimes firing before `BlockBreakEvent` when breaking blocks.
+
+## Other changes
+- Increased packet batch budget for player sessions.
+
+# 4.12.10
+Released 18th January 2023.
+
+## Fixes
+- Fixed reported server load not including the time spent processing Snooze interrupts between ticks (e.g. incoming network packets).
+- Fixed `Connection Handler` entry in timings report not including time spent receiving packets.
+
+## Note about server load & performance
+This version will report higher apparent server load than previous versions. The actual performance of the server is unchanged; the previous reported load was inaccurate.
+These bugs have been present for nearly 5 years (ever since the first introduction of Snooze in 3.0.0).
+
+# 4.12.11
+Released 22nd January 2023.
+
+## General
+- Code is now tested and analysed using PHP 8.2 in addition to 8.1 and 8.0.
+
+## Fixes
+- Fixed pthreads 5.0.0 incorrectly being treated as compatible.
+- Fixed deprecation errors on PHP 8.2.
+
+## Documentation
+- Updated documentation in `PlayerPreLoginEvent`.

changelogs/4.13-beta.md

@@ -0,0 +1,94 @@
+**For Minecraft: Bedrock Edition 1.19.50**
+
+This is a minor feature release for PocketMine-MP, introducing some new features and improvements.
+
+### 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.
+
+# 4.13.0-BETA1
+Released 18th January 2023.
+
+## Gameplay
+- Death message is now shown on the death screen when a player dies.
+- Armour damage is now only increased if the armour reduced the damage taken.
+- Implemented Swift Sneak enchantment.
+- Fixed incorrect collision box calculation of walls and glass/bars when connected. Note: Client-side, wall connections are still broken; this only fixes projectile flight server-side.
+
+## Performance
+- Improved performance of chunk selection for chunk random ticking using a cache. This improves performance of chunk random ticking by 10-20%.
+
+## Localization
+- Added localized description for the `/dumpmemory` command.
+
+## Permissions
+- Added the following new core permissions:
+  - `pocketmine.command.effect.other` - allows the player to use the `/effect` command on other players (default operator only)
+  - `pocketmine.command.effect.self` - allows the player to use the `/effect` command on themselves (default operator only)
+  - `pocketmine.command.enchant.other` - allows the player to use the `/enchant` command on other players (default operator only)
+  - `pocketmine.command.enchant.self` - allows the player to use the `/enchant` command on themselves (default operator only)
+  - `pocketmine.command.gamemode.other` - allows the player to use the `/gamemode` command on other players (default operator only)
+  - `pocketmine.command.gamemode.self` - allows the player to use the `/gamemode` command on themselves (default operator only)
+  - `pocketmine.command.give.other` - allows the player to use the `/give` command on other players (default operator only)
+  - `pocketmine.command.give.self` - allows the player to use the `/give` command on themselves (default operator only)
+  - `pocketmine.command.spawnpoint.other` - allows the player to use the `/spawnpoint` command on other players (default operator only)
+  - `pocketmine.command.spawnpoint.self` - allows the player to use the `/spawnpoint` command on themselves (default operator only)
+  - `pocketmine.command.teleport.other` - allows the player to use the `/teleport` command on other players (default operator only)
+  - `pocketmine.command.teleport.self` - allows the player to use the `/teleport` command on themselves (default operator only)
+  - `pocketmine.command.title.other` - allows the player to use the `/title` command on other players (default operator only)
+  - `pocketmine.command.title.self` - allows the player to use the `/title` command on themselves (default operator only)
+
+## Internals
+- Decoupled `Player->sendMessage()` and `Player->sendTranslation()`.
+- Refactored resource pack loading in `ResourcePackManager` to make it easier to understand.
+- Client-aware translation processing has been moved to `NetworkSession` due to being client-specific.
+- Replaced hardcoded strings with constants in various places.
+- `NetworkSession` destructive cleanup is now deferred to the next session tick. This fixes various `InventoryManager` crashes when kicking players during events.
+- Updated code using `strpos()` to use `str_starts_with()`, `str_ends_with()` and `str_contains()` where appropriate.
+- Added documentation for some internal methods.
+
+## API
+### `pocketmine\command`
+- The following new API methods have been added:
+  - `protected VanillaCommand->fetchPermittedPlayerTarget(...) : ?Player` - fetches a player target according to the given sender permissions, or null if not found or not permitted
+
+### `pocketmine\entity`
+- The following new API methods have been added:
+  - `public Living->getDisplayName() : string` - the name of the entity to be shown in death messages, commands etc.
+
+### `pocketmine\event\world`
+- The following new classes have been added:
+  - `WorldSoundEvent` - called when a sound is played in a world
+  - `WorldParticleEvent` - called when a particle is spawned in a world
+
+### `pocketmine\item`
+- The following new API methods have been added:
+  - `public Item->onInteractEntity(Player $player, Entity $entity, Vector3 $clickVector) : bool` - called when a player interacts with an entity with this item in hand
+
+### `pocketmine\lang`
+- `Language->translate()` and `Language->translateString()` no longer parse nested translation in the "base text". This was never intended behaviour, and didn't work beyond the first level anyway.
+
+### `pocketmine\player`
+- The following new interfaces have been added:
+  - `PlayerDataProvider` - implemented by classes which want to offer storage for player data
+- The following new classes have been added:
+  - `DatFilePlayerDataProvider` - the default player data provider, which stores `.dat` files in the `players` folder
+  - `PlayerDataLoadException` - thrown when an error occurs while loading player data
+  - `PlayerDataSaveException` - thrown when an error occurs while saving player data
+- The following API methods have been deprecated:
+  - `Player->sendTranslation()` - use `Player->sendMessage()` instead with a `Translatable` message
+
+### `pocketmine\resourcepacks`
+- The following new API methods have been added:
+  - `public ResourcePackManager->setResourceStack(list<ResourcePack> $resourceStack) : void` - sets the list of resource packs to be applied by players
+  - `public ResourcePackManager->setPackEncryptionKey(string $id, ?string $key) : void` - sets the encryption key to be used for a resource pack
+
+### `pocketmine\utils`
+- The following new API methods have been added:
+  - `public static Filesystem::fileGetContents(...) : string` - a wrapper around `file_get_contents()` which throws an exception on failure
+
+### `pocketmine\world`
+- The following new API methods have been added:
+  - `public World->requestSafeSpawn(?Vector3 $spawn = null) : Promise<Position>` - an async version of `getSafeSpawn()` which generates all the needed chunks before returning

changelogs/4.13.md

@@ -0,0 +1,94 @@
+**For Minecraft: Bedrock Edition 1.19.50**
+
+This is a minor feature release for PocketMine-MP, introducing some new features and improvements.
+
+### 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.
+
+# 4.13.0
+Released 30th January 2023.
+
+## Gameplay
+- Death message is now shown on the death screen when a player dies.
+- Armour damage is now only increased if the armour reduced the damage taken.
+- Implemented Swift Sneak enchantment.
+- Fixed incorrect collision box calculation of walls and glass/bars when connected. Note: Client-side, wall connections are still broken; this only fixes projectile flight server-side.
+
+## Performance
+- Improved performance of chunk selection for chunk random ticking using a cache. This improves performance of chunk random ticking by 10-20%.
+
+## Localization
+- Added localized description for the `/dumpmemory` command.
+
+## Permissions
+- Added the following new core permissions:
+  - `pocketmine.command.effect.other` - allows the player to use the `/effect` command on other players (default operator only)
+  - `pocketmine.command.effect.self` - allows the player to use the `/effect` command on themselves (default operator only)
+  - `pocketmine.command.enchant.other` - allows the player to use the `/enchant` command on other players (default operator only)
+  - `pocketmine.command.enchant.self` - allows the player to use the `/enchant` command on themselves (default operator only)
+  - `pocketmine.command.gamemode.other` - allows the player to use the `/gamemode` command on other players (default operator only)
+  - `pocketmine.command.gamemode.self` - allows the player to use the `/gamemode` command on themselves (default operator only)
+  - `pocketmine.command.give.other` - allows the player to use the `/give` command on other players (default operator only)
+  - `pocketmine.command.give.self` - allows the player to use the `/give` command on themselves (default operator only)
+  - `pocketmine.command.spawnpoint.other` - allows the player to use the `/spawnpoint` command on other players (default operator only)
+  - `pocketmine.command.spawnpoint.self` - allows the player to use the `/spawnpoint` command on themselves (default operator only)
+  - `pocketmine.command.teleport.other` - allows the player to use the `/teleport` command on other players (default operator only)
+  - `pocketmine.command.teleport.self` - allows the player to use the `/teleport` command on themselves (default operator only)
+  - `pocketmine.command.title.other` - allows the player to use the `/title` command on other players (default operator only)
+  - `pocketmine.command.title.self` - allows the player to use the `/title` command on themselves (default operator only)
+
+## Internals
+- Decoupled `Player->sendMessage()` and `Player->sendTranslation()`.
+- Refactored resource pack loading in `ResourcePackManager` to make it easier to understand.
+- Client-aware translation processing has been moved to `NetworkSession` due to being client-specific.
+- Replaced hardcoded strings with constants in various places.
+- `NetworkSession` destructive cleanup is now deferred to the next session tick. This fixes various `InventoryManager` crashes when kicking players during events.
+- Updated code using `strpos()` to use `str_starts_with()`, `str_ends_with()` and `str_contains()` where appropriate.
+- Added documentation for some internal methods.
+
+## API
+### `pocketmine\command`
+- The following new API methods have been added:
+  - `protected VanillaCommand->fetchPermittedPlayerTarget(...) : ?Player` - fetches a player target according to the given sender permissions, or null if not found or not permitted
+
+### `pocketmine\entity`
+- The following new API methods have been added:
+  - `public Living->getDisplayName() : string` - the name of the entity to be shown in death messages, commands etc.
+
+### `pocketmine\event\world`
+- The following new classes have been added:
+  - `WorldSoundEvent` - called when a sound is played in a world
+  - `WorldParticleEvent` - called when a particle is spawned in a world
+
+### `pocketmine\item`
+- The following new API methods have been added:
+  - `public Item->onInteractEntity(Player $player, Entity $entity, Vector3 $clickVector) : bool` - called when a player interacts with an entity with this item in hand
+
+### `pocketmine\lang`
+- `Language->translate()` and `Language->translateString()` no longer parse nested translation in the "base text". This was never intended behaviour, and didn't work beyond the first level anyway.
+
+### `pocketmine\player`
+- The following new interfaces have been added:
+  - `PlayerDataProvider` - implemented by classes which want to offer storage for player data
+- The following new classes have been added:
+  - `DatFilePlayerDataProvider` - the default player data provider, which stores `.dat` files in the `players` folder
+  - `PlayerDataLoadException` - thrown when an error occurs while loading player data
+  - `PlayerDataSaveException` - thrown when an error occurs while saving player data
+- The following API methods have been deprecated:
+  - `Player->sendTranslation()` - use `Player->sendMessage()` instead with a `Translatable` message
+
+### `pocketmine\resourcepacks`
+- The following new API methods have been added:
+  - `public ResourcePackManager->setResourceStack(list<ResourcePack> $resourceStack) : void` - sets the list of resource packs to be applied by players
+  - `public ResourcePackManager->setPackEncryptionKey(string $id, ?string $key) : void` - sets the encryption key to be used for a resource pack
+
+### `pocketmine\utils`
+- The following new API methods have been added:
+  - `public static Filesystem::fileGetContents(...) : string` - a wrapper around `file_get_contents()` which throws an exception on failure
+
+### `pocketmine\world`
+- The following new API methods have been added:
+  - `public World->requestSafeSpawn(?Vector3 $spawn = null) : Promise<Position>` - an async version of `getSafeSpawn()` which generates all the needed chunks before returning

changelogs/4.14.md

@@ -0,0 +1,21 @@
+**For Minecraft: Bedrock Edition 1.19.60**
+
+### 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.
+
+# 4.14.0
+Released 8th February 2023.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.19.60.
+- Removed support for older versions.
+
+# 4.14.1
+Released 15th February 2023.
+
+## Fixes
+- Fixed all players getting kicked with `Receiving packets too fast` if a server tick takes longer than 5 seconds (e.g. because of autosave or GC).
+- Fixed players getting kicked when linking with entities.

changelogs/4.15.md

@@ -0,0 +1,38 @@
+**For Minecraft: Bedrock Edition 1.19.62**
+
+### 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.
+
+# 4.15.0
+Released 17th February 2023.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.19.62.
+- Removed support for older versions.
+
+# 4.15.1
+Released 21st February 2023.
+
+## Fixes
+- Fixed dropped items not despawning when in non-ticking chunks.
+- Fixed dropped items not despawning if an infinite pickup delay is set.
+- Fixed infinite despawn delay (never despawn) being ignored for dropped items.
+
+# 4.15.2
+Released 24th February 2023.
+
+## General
+- Accept Minecraft: Bedrock Edition 1.19.63 (identical protocol to 1.19.62, but different version due to Mojang mixup).
+
+## Fixes
+- Fixed `World Population` timer sometimes not being stopped, causing strange results in timings reports.
+
+# 4.15.3
+Released 7th March 2023.
+
+## Fixes
+- Fixed `/dumpmemory` crash when any object contained an `INF` or `NaN` float value.
+- Updated RakLib for security fixes.

changelogs/4.16-beta.md

@@ -0,0 +1,45 @@
+**For Minecraft: Bedrock Edition 1.19.62**
+
+### 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.
+
+# 4.16.0-BETA1
+Released 4th March 2023.
+
+## General
+- Added granular timings for packet encode, similar to the existing timings for packet decode.
+- Timings now covers several areas of the network system which were previously not counted by network timings, but were counted by total timings. This provides a better insight into the performance of the network system.
+
+## Performance
+- Improved performance of packet batch handling by avoiding unnecessary object allocations.
+- Improved performance of packet broadcasting when the broadcast size is below the batch threshold. Previously, the packets would be encoded once by every recipient, but now they are encoded once and then added to the send buffer of each session in their raw form.
+  - This change mostly affects servers with larger maps, where players are more widely distributed.
+
+## Build system
+- Added a new script `build/generate-bedrockdata-path-consts.php`, which must be run whenever BedrockData is updated. This script generates a class of constants with the file paths of all BedrockData files.
+
+## API
+### `pocketmine\entity`
+- The following new API methods have been added:
+  - `public Entity->getGravity() : float` - returns the entity's gravity acceleration in blocks/tick^2
+  - `public Entity->setGravity(float $gravity) : void` - sets the entity's gravity acceleration in blocks/tick^2
+
+## Internals
+- Now uses [`pocketmine/bedrock-data` 2.0.0](https://github.com/pmmp/BedrockData/releases/tag/2.0.0+bedrock-1.19.60).
+  - This version is now used by both PM4 and PM5, reducing maintenance burden.
+- Now uses [`pocketmine/bedrock-protocol` 19.3.0](https://github.com/pmmp/BedrockProtocol/releases/tag/19.3.0+bedrock-1.19.62).
+  - This version provides new APIs for handling packet batches which enabled improving performance and adding new features, such as detailed packet encode timings.
+- Crafting recipes and creative inventory data are now loaded from `recipes/legacy_recipes.json` and `recipes/legacy_creativeitems.json` respectively. Previously, these were loaded from BedrockData directly, but BedrockData 2.0 now uses a format which can't be supported in 4.x without BC breaks.
+- Added dependencies on [`pocketmine/bedrock-block-upgrade-schema`](https://github.com/pmmp/BedrockBlockUpgradeSchema) and [`pocketmine/bedrock-item-upgrade-schema`](https://github.com/pmmp/BedrockItemUpgradeSchema). These provide mapping files no longer present in BedrockData 2.0.
+- Reduced and/or eliminated most usages of `PacketBatch`, since it only appeared as a throwaway object and was therefore wasting performance.
+- `Compressor` now exposes `getCompressionThreshold()` instead of `willCompress()`, which allows determining whether a batch will be compressed without allocating it.
+- Added `pocketmine\data\bedrock\BedrockDataFiles`, an auto-generated class of constants with the file paths of all BedrockData files. This makes it easier to locate usages, detect unused files and avoid typos.
+
+# 4.16.0-BETA2
+Released 4th March 2023.
+
+## General
+- Fixed incorrect release channel for 4.16.0-BETA1.

changelogs/4.16.md

@@ -0,0 +1,41 @@
+**For Minecraft: Bedrock Edition 1.19.62**
+
+### 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.
+
+# 4.16.0
+Released 7th March 2023.
+
+## General
+- Added granular timings for packet encode, similar to the existing timings for packet decode.
+- Split `Player Network Send - Compression` timings into two timers, one for `Session Buffer` compression and one for `Broadcast` compression.
+- Timings now covers several areas of the network system which were previously not counted by network timings, but were counted by total timings. This provides a better insight into the performance of the network system.
+
+## Performance
+- Improved performance of packet batch handling by avoiding unnecessary object allocations.
+- Improved performance of packet broadcasting when the broadcast size is below the batch threshold. Previously, the packets would be encoded once by every recipient, but now they are encoded once and then added to the send buffer of each session in their raw form.
+  - This change mostly affects servers with larger maps, where players are more widely distributed.
+- Improved performance of packet broadcasting when the broadcast has only one recipient (allow the session to compress the packet with the rest of its buffer).
+
+## Build system
+- Added a new script `build/generate-bedrockdata-path-consts.php`, which must be run whenever BedrockData is updated. This script generates a class of constants with the file paths of all BedrockData files.
+
+## API
+### `pocketmine\entity`
+- The following new API methods have been added:
+  - `public Entity->getGravity() : float` - returns the entity's gravity acceleration in blocks/tick^2
+  - `public Entity->setGravity(float $gravity) : void` - sets the entity's gravity acceleration in blocks/tick^2
+
+## Internals
+- Now uses [`pocketmine/bedrock-data` 2.0.0](https://github.com/pmmp/BedrockData/releases/tag/2.0.0+bedrock-1.19.60).
+  - This version is now used by both PM4 and PM5, reducing maintenance burden.
+- Now uses [`pocketmine/bedrock-protocol` 19.3.0](https://github.com/pmmp/BedrockProtocol/releases/tag/19.3.0+bedrock-1.19.62).
+  - This version provides new APIs for handling packet batches which enabled improving performance and adding new features, such as detailed packet encode timings.
+- Crafting recipes and creative inventory data are now loaded from `recipes/legacy_recipes.json` and `recipes/legacy_creativeitems.json` respectively. Previously, these were loaded from BedrockData directly, but BedrockData 2.0 now uses a format which can't be supported in 4.x without BC breaks.
+- Added dependencies on [`pocketmine/bedrock-block-upgrade-schema`](https://github.com/pmmp/BedrockBlockUpgradeSchema) and [`pocketmine/bedrock-item-upgrade-schema`](https://github.com/pmmp/BedrockItemUpgradeSchema). These provide mapping files no longer present in BedrockData 2.0.
+- Reduced and/or eliminated most usages of `PacketBatch`, since it only appeared as a throwaway object and was therefore wasting performance.
+- `Compressor` now exposes `getCompressionThreshold()` instead of `willCompress()`, which allows determining whether a batch will be compressed without allocating it.
+- Added `pocketmine\data\bedrock\BedrockDataFiles`, an auto-generated class of constants with the file paths of all BedrockData files. This makes it easier to locate usages, detect unused files and avoid typos.

changelogs/4.17.md

@@ -0,0 +1,14 @@
+**For Minecraft: Bedrock Edition 1.19.70**
+
+### 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.
+
+# 4.17.0
+Released 14th March 2023.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.19.70.
+- Removed support for older versions.

changelogs/4.18-alpha.md

@@ -0,0 +1,91 @@
+**For Minecraft: Bedrock Edition 1.19.70**
+
+### Note about API versions
+Plugins which don't touch the `pocketmine\network\mcpe` namespace are 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 `pocketmine\network\mcpe` namespace, you're not shielded by API change constraints.**
+Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you're using packets directly.
+
+### Alpha release warning
+Alpha releases are **experimental**. Features introduced in these releases are subject to change or removal.
+
+APIs which existed **prior** to this version will continue to work as normal, so plugins which use them will continue to work.
+
+### Highlights
+This version makes changes to the internal network system to improve server performance and reduce memory usage.
+
+While these changes don't affect non-internal API, they are still significant enough to warrant a new minor version, as they may break plugins which use the internal network API (not recommended).
+
+# 4.18.0-ALPHA1
+Released 16th March 2023.
+
+## General
+- Improved server performance in congested areas of the world (lots of players and/or entities in the same area).
+
+## API
+### `pocketmine\event\server`
+- The following new classes have been added:
+  - `DataPacketDecodeEvent` - called before a packet is decoded by a `NetworkSession`; useful to mitigate DoS attacks if PocketMine-MP hasn't been patched against new bugs yet
+
+## Internals
+- Introduced new system for broadcasting entity events to network sessions.
+  - This change improves performance when lots of players and/or entities are in the same area.
+  - New interface `EntityEventBroadcaster` and class `StandardEntityEventBroadcaster` have been added to implement this.
+  - All entity-specific `on*()` and `sync*()` methods have been removed from `NetworkSession` (BC break).
+  - `NetworkSession` now accepts an `EntityEventBroadcaster` instance in its constructor.
+  - `NetworkBroadcastUtils::broadcastEntityEvent()` can be used to efficiently broadcast events to unique broadcasters shared by several network sessions.
+- All network sessions now share the same `PacketSerializerContext` and `PacketBroadcaster` by default.
+  - Previously, every session had its own context, meaning that broadcast optimisations were not used, causing significant performance losses compared to 3.x.
+  - This change improves performance in congested areas by allowing reuse of previously encoded packet buffers for all sessions sharing the same context.
+  - Packet broadcasts are automatically encoded separately per unique `PacketSerializerContext` instance. This allows, for example, a multi-version fork to have a separate context for each protocol version, to ensure maximum broadcast efficiency while encoding different packets for different versions.
+  - `PacketSerializerContext` is now passed in `NetworkSession::__construct()`, instead of being created by the session.
+- `StandardPacketBroadcaster` is now locked to a single `PacketSerializer` context, reducing complexity.
+- Introduced `NetworkBroadcastUtils::broadcastPackets()`, replacing `Server->broadcastPackets()`.
+- `Server->broadcastPackets()` has been deprecated. It will be removed in a future version.
+
+# 4.18.0-ALPHA2
+Released 21st March 2023.
+
+## General
+- Included more sections of the network system in Player Network Send timings.
+- Changed the names of some timings to make them more user-friendly.
+- Removed packet IDs from `receivePacket` and `sendPacket` timings, as they were not very useful.
+- Added new specialized timers for the following:
+  - Item entity base ticking (merging)
+  - Player movement processing
+  - Entity movement processing (collision checking section)
+  - Projectile movement (all)
+  - Projectile movement processing (ray tracing section)
+
+## API
+### `pocketmine\crafting`
+- The following new API methods have been added:
+  - `CraftingManager->getCraftingRecipeIndex() : array<int, CraftingRecipe>` - returns a list of all crafting recipes
+  - `CraftingManager->getCraftingRecipeFromIndex(int $index) : ?CraftingRecipe` - returns the crafting recipe at the given index, or null if it doesn't exist
+
+### `pocketmine\inventory\transaction`
+- The following API methods have changed signatures:
+  - `CraftingTransaction->__construct()` now accepts additional arguments `?CraftingRecipe $recipe = null, ?int $repetitions = null`
+- The following new API methods have been added:
+  - `TransactionBuilderInventory->getActualInventory() : Inventory` - returns the actual inventory that this inventory is a proxy for
+
+## Internals
+### Network
+- Introduced support for the `ItemStackRequest` Minecraft: Bedrock network protocol.
+  - This fixes a large number of inventory- and crafting-related bugs.
+  - This also improves server security by closing off many code pathways that might have been used for exploits. `TypeConverter->netItemStackToCore()` is no longer used in server code, and remains for tool usage only.
+  - This system is also significantly more bandwidth-efficient and has lower overhead than the legacy system.
+  - This now opens the gateway to easily implement lots of gameplay features which have been missing for a long time, such as enchanting, anvils, looms, and more.
+  - Significant changes have been made to `pocketmine\network\mcpe\InventoryManager` internals. These shouldn't affect plugins, but may affect plugins which use internal network API.
+  - **No changes have been made to the plugin `InventoryTransaction` API**.
+    - This system has been implemented as a shim for the existing PocketMine-MP transaction system to preserve plugin compatibility. Plugins using `InventoryTransactionEvent` should continue to work seamlessly.
+    - The `InventoryTransaction` API will be redesigned in a future major version to make use of the new information provided by the `ItemStackRequest` system.
+  - `InventoryTransactionPacket` is no longer sent by the client for "regular" inventory actions. However, it is still sent when dropping items, interacting with blocks, and using items.
+- Inventory slot and content syncing is now buffered until the end of the tick. This reduces outbound network usage when the client performs multiple transactions in a single tick (e.g. crafting a stack of items).
+- Renamed some `InventoryManager` internal properties to make them easier to understand.
+- `TypeConverter->createInventoryAction()` has been removed.
+- Packet batch limit has been lowered to `100` packets. With the introduction of `ItemStackRequest`, this is more than sufficient for normal gameplay.
+
+### Other
+- Use `Vector3::zero()` instead of `new Vector3()` in some places.

composer.json

@@ -34,14 +34,16 @@
       "adhocore/json-comment": "^1.1",
       "fgrosse/phpasn1": "^2.3",
       "netresearch/jsonmapper": "^4.0",
-      "pocketmine/bedrock-data": "~1.13.0+bedrock-1.19.50",
-      "pocketmine/bedrock-protocol": "~17.1.0+bedrock-1.19.50",
+      "pocketmine/bedrock-block-upgrade-schema": "~1.1.1+bedrock-1.19.70",
+      "pocketmine/bedrock-data": "~2.1.1+bedrock-1.19.70",
+      "pocketmine/bedrock-item-upgrade-schema": "~1.1.0+bedrock-1.19.70",
+      "pocketmine/bedrock-protocol": "~20.1.0+bedrock-1.19.70",
       "pocketmine/binaryutils": "^0.2.1",
       "pocketmine/callback-validator": "^1.0.2",
       "pocketmine/classloader": "^0.2.0",
-      "pocketmine/color": "^0.2.0",
+      "pocketmine/color": "^0.3.0",
       "pocketmine/errorhandler": "^0.6.0",
-      "pocketmine/locale-data": "~2.11.0",
+      "pocketmine/locale-data": "~2.18.0",
       "pocketmine/log": "^0.4.0",
       "pocketmine/log-pthreads": "^0.4.0",
       "pocketmine/math": "^0.4.0",
@@ -54,7 +56,7 @@
       "webmozart/path-util": "^2.3"
    },
    "require-dev": {
-      "phpstan/phpstan": "1.9.7",
+      "phpstan/phpstan": "1.10.6",
       "phpstan/phpstan-phpunit": "^1.1.0",
       "phpstan/phpstan-strict-rules": "^1.2.0",
       "phpunit/phpunit": "^9.2"

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "76c6b5521d8f88d9070e8dec1c0ae144",
+    "content-hash": "01afa65b40f95ad9378c8cd999e6098d",
     "packages": [
         {
             "name": "adhocore/json-comment",
@@ -249,17 +249,43 @@
             "time": "2022-12-08T20:46:14+00:00"
         },
         {
-            "name": "pocketmine/bedrock-data",
-            "version": "1.13.0+bedrock-1.19.50",
+            "name": "pocketmine/bedrock-block-upgrade-schema",
+            "version": "1.1.1",
             "source": {
                 "type": "git",
-                "url": "https://github.com/pmmp/BedrockData.git",
-                "reference": "57337ddc9433a0e245a1ce48c51af05f0573d58d"
+                "url": "https://github.com/pmmp/BedrockBlockUpgradeSchema.git",
+                "reference": "e0540343e649a92126a1d4071ec401a811416c76"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/BedrockData/zipball/57337ddc9433a0e245a1ce48c51af05f0573d58d",
-                "reference": "57337ddc9433a0e245a1ce48c51af05f0573d58d",
+                "url": "https://api.github.com/repos/pmmp/BedrockBlockUpgradeSchema/zipball/e0540343e649a92126a1d4071ec401a811416c76",
+                "reference": "e0540343e649a92126a1d4071ec401a811416c76",
+                "shasum": ""
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "CC0-1.0"
+            ],
+            "description": "Schemas describing how to upgrade saved block data in older Minecraft: Bedrock Edition world saves",
+            "support": {
+                "issues": "https://github.com/pmmp/BedrockBlockUpgradeSchema/issues",
+                "source": "https://github.com/pmmp/BedrockBlockUpgradeSchema/tree/1.1.1"
+            },
+            "time": "2023-03-08T23:45:59+00:00"
+        },
+        {
+            "name": "pocketmine/bedrock-data",
+            "version": "2.1.1+bedrock-1.19.70",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/pmmp/BedrockData.git",
+                "reference": "cba0567bcb25f987f2712092f8d662056719e82d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/pmmp/BedrockData/zipball/cba0567bcb25f987f2712092f8d662056719e82d",
+                "reference": "cba0567bcb25f987f2712092f8d662056719e82d",
                 "shasum": ""
             },
             "type": "library",
@@ -270,22 +296,48 @@
             "description": "Blobs of data generated from Minecraft: Bedrock Edition, used by PocketMine-MP",
             "support": {
                 "issues": "https://github.com/pmmp/BedrockData/issues",
-                "source": "https://github.com/pmmp/BedrockData/tree/bedrock-1.19.50"
+                "source": "https://github.com/pmmp/BedrockData/tree/2.1.1+bedrock-1.19.70"
             },
-            "time": "2022-11-30T16:19:59+00:00"
+            "time": "2023-03-14T18:03:19+00:00"
         },
         {
-            "name": "pocketmine/bedrock-protocol",
-            "version": "17.1.0+bedrock-1.19.50",
+            "name": "pocketmine/bedrock-item-upgrade-schema",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/pmmp/BedrockProtocol.git",
-                "reference": "c572706cf5e3202718dd35a35dd30fe08cd671de"
+                "url": "https://github.com/pmmp/BedrockItemUpgradeSchema.git",
+                "reference": "aab89a1f121a0c127557a4a0cf981330301c9c45"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/BedrockProtocol/zipball/c572706cf5e3202718dd35a35dd30fe08cd671de",
-                "reference": "c572706cf5e3202718dd35a35dd30fe08cd671de",
+                "url": "https://api.github.com/repos/pmmp/BedrockItemUpgradeSchema/zipball/aab89a1f121a0c127557a4a0cf981330301c9c45",
+                "reference": "aab89a1f121a0c127557a4a0cf981330301c9c45",
+                "shasum": ""
+            },
+            "type": "library",
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "CC0-1.0"
+            ],
+            "description": "JSON schemas for upgrading items found in older Minecraft: Bedrock world saves",
+            "support": {
+                "issues": "https://github.com/pmmp/BedrockItemUpgradeSchema/issues",
+                "source": "https://github.com/pmmp/BedrockItemUpgradeSchema/tree/1.1.0"
+            },
+            "time": "2023-03-08T22:27:13+00:00"
+        },
+        {
+            "name": "pocketmine/bedrock-protocol",
+            "version": "20.1.0+bedrock-1.19.70",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/pmmp/BedrockProtocol.git",
+                "reference": "91d67c8b1bced3c82d0841b1041c0c1f4e93eb68"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/pmmp/BedrockProtocol/zipball/91d67c8b1bced3c82d0841b1041c0c1f4e93eb68",
+                "reference": "91d67c8b1bced3c82d0841b1041c0c1f4e93eb68",
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@@ -293,13 +345,13 @@
                 "netresearch/jsonmapper": "^4.0",
                 "php": "^8.0",
                 "pocketmine/binaryutils": "^0.2.0",
-                "pocketmine/color": "^0.2.0",
+                "pocketmine/color": "^0.2.0 || ^0.3.0",
                 "pocketmine/math": "^0.3.0 || ^0.4.0",
                 "pocketmine/nbt": "^0.3.0",
                 "ramsey/uuid": "^4.1"
             },
             "require-dev": {
-                "phpstan/phpstan": "1.9.3",
+                "phpstan/phpstan": "1.10.7",
                 "phpstan/phpstan-phpunit": "^1.0.0",
                 "phpstan/phpstan-strict-rules": "^1.0.0",
                 "phpunit/phpunit": "^9.5"
@@ -317,9 +369,9 @@
             "description": "An implementation of the Minecraft: Bedrock Edition protocol in PHP",
             "support": {
                 "issues": "https://github.com/pmmp/BedrockProtocol/issues",
-                "source": "https://github.com/pmmp/BedrockProtocol/tree/17.1.0+bedrock-1.19.50"
+                "source": "https://github.com/pmmp/BedrockProtocol/tree/20.1.0+bedrock-1.19.70"
             },
-            "time": "2022-12-15T20:34:49+00:00"
+            "time": "2023-03-20T01:17:00+00:00"
         },
         {
             "name": "pocketmine/binaryutils",
@@ -460,24 +512,24 @@
         },
         {
             "name": "pocketmine/color",
-            "version": "0.2.0",
+            "version": "0.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/Color.git",
-                "reference": "09be6ea6d76f2e33d6813c39d29c22c46c17e1d2"
+                "reference": "8cb346d0a21ad3287cc8d7175e4b643416607249"
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-                "url": "https://api.github.com/repos/pmmp/Color/zipball/09be6ea6d76f2e33d6813c39d29c22c46c17e1d2",
-                "reference": "09be6ea6d76f2e33d6813c39d29c22c46c17e1d2",
+                "url": "https://api.github.com/repos/pmmp/Color/zipball/8cb346d0a21ad3287cc8d7175e4b643416607249",
+                "reference": "8cb346d0a21ad3287cc8d7175e4b643416607249",
                 "shasum": ""
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             "require": {
-                "php": "^7.2 || ^8.0"
+                "php": "^8.0"
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             "require-dev": {
-                "phpstan/phpstan": "0.12.59",
-                "phpstan/phpstan-strict-rules": "^0.12.2"
+                "phpstan/phpstan": "1.9.4",
+                "phpstan/phpstan-strict-rules": "^1.2.0"
             },
             "type": "library",
             "autoload": {
@@ -492,9 +544,9 @@
             "description": "Color handling library used by PocketMine-MP and related projects",
             "support": {
                 "issues": "https://github.com/pmmp/Color/issues",
-                "source": "https://github.com/pmmp/Color/tree/0.2.0"
+                "source": "https://github.com/pmmp/Color/tree/0.3.0"
             },
-            "time": "2020-12-11T01:24:32+00:00"
+            "time": "2022-12-18T19:49:21+00:00"
         },
         {
             "name": "pocketmine/errorhandler",
@@ -537,16 +589,16 @@
         },
         {
             "name": "pocketmine/locale-data",
-            "version": "2.11.0",
+            "version": "2.18.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/Language.git",
-                "reference": "4b33d8fa53eda53d9662a7478806ebae2e4a5c53"
+                "reference": "da25bfe9ee4822a84feb9b7e620c56ad4000aed0"
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-                "reference": "4b33d8fa53eda53d9662a7478806ebae2e4a5c53",
+                "url": "https://api.github.com/repos/pmmp/Language/zipball/da25bfe9ee4822a84feb9b7e620c56ad4000aed0",
+                "reference": "da25bfe9ee4822a84feb9b7e620c56ad4000aed0",
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             "type": "library",
@@ -554,9 +606,9 @@
             "description": "Language resources used by PocketMine-MP",
             "support": {
                 "issues": "https://github.com/pmmp/Language/issues",
-                "source": "https://github.com/pmmp/Language/tree/2.11.0"
+                "source": "https://github.com/pmmp/Language/tree/2.18.3"
             },
-            "time": "2022-11-25T14:24:34+00:00"
+            "time": "2023-01-17T21:43:36+00:00"
         },
         {
             "name": "pocketmine/log",
@@ -728,16 +780,16 @@
         },
         {
             "name": "pocketmine/raklib",
-            "version": "0.14.5",
+            "version": "0.14.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/RakLib.git",
-                "reference": "85b4e5cb7117d37e010eeadb3ff53b21276c6f48"
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-                "reference": "85b4e5cb7117d37e010eeadb3ff53b21276c6f48",
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@@ -749,7 +801,7 @@
                 "pocketmine/log": "^0.3.0 || ^0.4.0"
             },
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                 "ext-libxml": "*",
@@ -2340,8 +2404,8 @@
                 "sebastian/version": "^3.0.2"
             },
             "suggest": {
-                "ext-soap": "*",
-                "ext-xdebug": "*"
+                "ext-soap": "To be able to generate mocks based on WSDL files",
+                "ext-xdebug": "PHP extension that provides line coverage as well as branch and path coverage"
             },
             "bin": [
                 "phpunit"
@@ -2349,7 +2413,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "9.5-dev"
+                    "dev-master": "9.6-dev"
                 }
             },
             "autoload": {
@@ -2380,7 +2444,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.27"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.6.5"
             },
             "funding": [
                 {
@@ -2396,7 +2460,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-12-09T07:31:23+00:00"
+            "time": "2023-03-09T06:34:10+00:00"
         },
         {
             "name": "sebastian/cli-parser",
@@ -2764,16 +2828,16 @@
         },
         {
             "name": "sebastian/environment",
-            "version": "5.1.4",
+            "version": "5.1.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "1b5dff7bb151a4db11d49d90e5408e4e938270f7"
+                "reference": "830c43a844f1f8d5b7a1f6d6076b784454d8b7ed"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/1b5dff7bb151a4db11d49d90e5408e4e938270f7",
-                "reference": "1b5dff7bb151a4db11d49d90e5408e4e938270f7",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/830c43a844f1f8d5b7a1f6d6076b784454d8b7ed",
+                "reference": "830c43a844f1f8d5b7a1f6d6076b784454d8b7ed",
                 "shasum": ""
             },
             "require": {
@@ -2815,7 +2879,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/environment/issues",
-                "source": "https://github.com/sebastianbergmann/environment/tree/5.1.4"
+                "source": "https://github.com/sebastianbergmann/environment/tree/5.1.5"
             },
             "funding": [
                 {
@@ -2823,7 +2887,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-04-03T09:37:03+00:00"
+            "time": "2023-02-03T06:03:51+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -3137,16 +3201,16 @@
         },
         {
             "name": "sebastian/recursion-context",
-            "version": "4.0.4",
+            "version": "4.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/recursion-context.git",
-                "reference": "cd9d8cf3c5804de4341c283ed787f099f5506172"
+                "reference": "e75bd0f07204fec2a0af9b0f3cfe97d05f92efc1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/cd9d8cf3c5804de4341c283ed787f099f5506172",
-                "reference": "cd9d8cf3c5804de4341c283ed787f099f5506172",
+                "url": "https://api.github.com/repos/sebastianbergmann/recursion-context/zipball/e75bd0f07204fec2a0af9b0f3cfe97d05f92efc1",
+                "reference": "e75bd0f07204fec2a0af9b0f3cfe97d05f92efc1",
                 "shasum": ""
             },
             "require": {
@@ -3185,10 +3249,10 @@
                 }
             ],
             "description": "Provides functionality to recursively process PHP variables",
-            "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
+            "homepage": "https://github.com/sebastianbergmann/recursion-context",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/recursion-context/issues",
-                "source": "https://github.com/sebastianbergmann/recursion-context/tree/4.0.4"
+                "source": "https://github.com/sebastianbergmann/recursion-context/tree/4.0.5"
             },
             "funding": [
                 {
@@ -3196,7 +3260,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2020-10-26T13:17:30+00:00"
+            "time": "2023-02-03T06:07:39+00:00"
         },
         {
             "name": "sebastian/resource-operations",
@@ -3255,16 +3319,16 @@
         },
         {
             "name": "sebastian/type",
-            "version": "3.2.0",
+            "version": "3.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/type.git",
-                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e"
+                "reference": "75e2c2a32f5e0b3aef905b9ed0b179b953b3d7c7"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
-                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/75e2c2a32f5e0b3aef905b9ed0b179b953b3d7c7",
+                "reference": "75e2c2a32f5e0b3aef905b9ed0b179b953b3d7c7",
                 "shasum": ""
             },
             "require": {
@@ -3299,7 +3363,7 @@
             "homepage": "https://github.com/sebastianbergmann/type",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/type/issues",
-                "source": "https://github.com/sebastianbergmann/type/tree/3.2.0"
+                "source": "https://github.com/sebastianbergmann/type/tree/3.2.1"
             },
             "funding": [
                 {
@@ -3307,7 +3371,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-09-12T14:47:03+00:00"
+            "time": "2023-02-03T06:13:03+00:00"
         },
         {
             "name": "sebastian/version",

src/CoreConstants.php

@@ -37,4 +37,6 @@ define('pocketmine\PATH', dirname(__DIR__) . '/');
 define('pocketmine\RESOURCE_PATH', dirname(__DIR__) . '/resources/');
 define('pocketmine\BEDROCK_DATA_PATH', dirname(__DIR__) . '/vendor/pocketmine/bedrock-data/');
 define('pocketmine\LOCALE_DATA_PATH', dirname(__DIR__) . '/vendor/pocketmine/locale-data/');
+define('pocketmine\BEDROCK_BLOCK_UPGRADE_SCHEMA_PATH', dirname(__DIR__) . '/vendor/pocketmine/bedrock-block-upgrade-schema/');
+define('pocketmine\BEDROCK_ITEM_UPGRADE_SCHEMA_PATH', dirname(__DIR__) . '/vendor/pocketmine/bedrock-item-upgrade-schema/');
 define('pocketmine\COMPOSER_AUTOLOADER_PATH', dirname(__DIR__) . '/vendor/autoload.php');

src/MemoryManager.php

@@ -49,6 +49,7 @@ use function ini_get;
 use function ini_set;
 use function intdiv;
 use function is_array;
+use function is_float;
 use function is_object;
 use function is_resource;
 use function is_string;
@@ -69,6 +70,10 @@ use const JSON_UNESCAPED_SLASHES;
 use const SORT_NUMERIC;
 
 class MemoryManager{
+	private const DEFAULT_CHECK_RATE = Server::TARGET_TICKS_PER_SECOND;
+	private const DEFAULT_CONTINUOUS_TRIGGER_RATE = Server::TARGET_TICKS_PER_SECOND * 2;
+	private const DEFAULT_TICKS_PER_GC = 30 * 60 * Server::TARGET_TICKS_PER_SECOND;
+
 	private int $memoryLimit;
 	private int $globalMemoryLimit;
 	private int $checkRate;
@@ -113,20 +118,12 @@ class MemoryManager{
 			if($m <= 0){
 				$defaultMemory = 0;
 			}else{
-				switch(mb_strtoupper($matches[2])){
-					case "K":
-						$defaultMemory = intdiv($m, 1024);
-						break;
-					case "M":
-						$defaultMemory = $m;
-						break;
-					case "G":
-						$defaultMemory = $m * 1024;
-						break;
-					default:
-						$defaultMemory = $m;
-						break;
-				}
+				$defaultMemory = match(mb_strtoupper($matches[2])){
+					"K" => intdiv($m, 1024),
+					"M" => $m,
+					"G" => $m * 1024,
+					default => $m,
+				};
 			}
 		}
 
@@ -139,11 +136,11 @@ class MemoryManager{
 		}
 
 		$this->globalMemoryLimit = $config->getPropertyInt("memory.global-limit", 0) * 1024 * 1024;
-		$this->checkRate = $config->getPropertyInt("memory.check-rate", 20);
+		$this->checkRate = $config->getPropertyInt("memory.check-rate", self::DEFAULT_CHECK_RATE);
 		$this->continuousTrigger = $config->getPropertyBool("memory.continuous-trigger", true);
-		$this->continuousTriggerRate = $config->getPropertyInt("memory.continuous-trigger-rate", 30);
+		$this->continuousTriggerRate = $config->getPropertyInt("memory.continuous-trigger-rate", self::DEFAULT_CONTINUOUS_TRIGGER_RATE);
 
-		$this->garbageCollectionPeriod = $config->getPropertyInt("memory.garbage-collection.period", 36000);
+		$this->garbageCollectionPeriod = $config->getPropertyInt("memory.garbage-collection.period", self::DEFAULT_TICKS_PER_GC);
 		$this->garbageCollectionTrigger = $config->getPropertyBool("memory.garbage-collection.low-memory-trigger", true);
 		$this->garbageCollectionAsync = $config->getPropertyBool("memory.garbage-collection.collect-async-worker", true);
 
@@ -523,6 +520,8 @@ class MemoryManager{
 			$data = "(string) len(" . strlen($from) . ") " . substr(Utils::printable($from), 0, $maxStringSize);
 		}elseif(is_resource($from)){
 			$data = "(resource) " . print_r($from, true);
+		}elseif(is_float($from)){
+			$data = "(float) $from";
 		}else{
 			$data = $from;
 		}

src/PocketMine.php

@@ -122,7 +122,7 @@ namespace pocketmine {
 			if(substr_count($pthreads_version, ".") < 2){
 				$pthreads_version = "0.$pthreads_version";
 			}
-			if(version_compare($pthreads_version, "4.0.0") < 0 || version_compare($pthreads_version, "5.0.0") > 0){
+			if(version_compare($pthreads_version, "4.0.0") < 0 || version_compare($pthreads_version, "5.0.0") >= 0){
 				$messages[] = "pthreads ^4.0.0 is required, while you have $pthreads_version.";
 			}
 		}

src/Server.php

@@ -43,27 +43,29 @@ use pocketmine\event\player\PlayerCreationEvent;
 use pocketmine\event\player\PlayerDataSaveEvent;
 use pocketmine\event\player\PlayerLoginEvent;
 use pocketmine\event\server\CommandEvent;
-use pocketmine\event\server\DataPacketSendEvent;
 use pocketmine\event\server\QueryRegenerateEvent;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\lang\Language;
 use pocketmine\lang\LanguageNotFoundException;
 use pocketmine\lang\Translatable;
-use pocketmine\nbt\BigEndianNbtSerializer;
-use pocketmine\nbt\NbtDataException;
 use pocketmine\nbt\tag\CompoundTag;
-use pocketmine\nbt\TreeRoot;
 use pocketmine\network\mcpe\compression\CompressBatchPromise;
 use pocketmine\network\mcpe\compression\CompressBatchTask;
 use pocketmine\network\mcpe\compression\Compressor;
 use pocketmine\network\mcpe\compression\ZlibCompressor;
+use pocketmine\network\mcpe\convert\GlobalItemTypeDictionary;
 use pocketmine\network\mcpe\encryption\EncryptionContext;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\NetworkSession;
 use pocketmine\network\mcpe\PacketBroadcaster;
 use pocketmine\network\mcpe\protocol\ClientboundPacket;
 use pocketmine\network\mcpe\protocol\ProtocolInfo;
 use pocketmine\network\mcpe\protocol\serializer\PacketBatch;
+use pocketmine\network\mcpe\protocol\serializer\PacketSerializerContext;
 use pocketmine\network\mcpe\raklib\RakLibInterface;
+use pocketmine\network\mcpe\StandardEntityEventBroadcaster;
+use pocketmine\network\mcpe\StandardPacketBroadcaster;
 use pocketmine\network\Network;
 use pocketmine\network\NetworkInterfaceStartException;
 use pocketmine\network\query\DedicatedQueryNetworkInterface;
@@ -72,9 +74,13 @@ use pocketmine\network\query\QueryInfo;
 use pocketmine\network\upnp\UPnPNetworkInterface;
 use pocketmine\permission\BanList;
 use pocketmine\permission\DefaultPermissions;
+use pocketmine\player\DatFilePlayerDataProvider;
 use pocketmine\player\GameMode;
 use pocketmine\player\OfflinePlayer;
 use pocketmine\player\Player;
+use pocketmine\player\PlayerDataLoadException;
+use pocketmine\player\PlayerDataProvider;
+use pocketmine\player\PlayerDataSaveException;
 use pocketmine\player\PlayerInfo;
 use pocketmine\plugin\PharPluginLoader;
 use pocketmine\plugin\Plugin;
@@ -105,17 +111,18 @@ use pocketmine\utils\SignalHandler;
 use pocketmine\utils\Terminal;
 use pocketmine\utils\TextFormat;
 use pocketmine\utils\Utils;
-use pocketmine\world\format\Chunk;
 use pocketmine\world\format\io\WorldProviderManager;
 use pocketmine\world\format\io\WritableWorldProviderManagerEntry;
 use pocketmine\world\generator\Generator;
 use pocketmine\world\generator\GeneratorManager;
 use pocketmine\world\generator\InvalidGeneratorOptionsException;
+use pocketmine\world\Position;
 use pocketmine\world\World;
 use pocketmine\world\WorldCreationOptions;
 use pocketmine\world\WorldManager;
 use Ramsey\Uuid\UuidInterface;
 use Symfony\Component\Filesystem\Path;
+use function array_fill;
 use function array_sum;
 use function base64_encode;
 use function cli_set_process_title;
@@ -124,7 +131,6 @@ 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;
@@ -161,12 +167,9 @@ use function time;
 use function touch;
 use function trim;
 use function yaml_parse;
-use function zlib_decode;
-use function zlib_encode;
 use const DIRECTORY_SEPARATOR;
 use const PHP_EOL;
 use const PHP_INT_MAX;
-use const ZLIB_ENCODING_GZIP;
 
 /**
  * The class that manages everything
@@ -184,9 +187,30 @@ class Server{
 	public const DEFAULT_PORT_IPV6 = 19133;
 	public const DEFAULT_MAX_VIEW_DISTANCE = 16;
 
+	/**
+	 * Worlds, network, commands and most other things are polled this many times per second on average.
+	 * Between ticks, the server will sleep to ensure that the average tick rate is maintained.
+	 * It may wake up between ticks if a Snooze notification source is triggered (e.g. to process network packets).
+	 */
+	public const TARGET_TICKS_PER_SECOND = 20;
+	/**
+	 * The average time between ticks, in seconds.
+	 */
+	public const TARGET_SECONDS_PER_TICK = 1 / self::TARGET_TICKS_PER_SECOND;
+	public const TARGET_NANOSECONDS_PER_TICK = 1_000_000_000 / self::TARGET_TICKS_PER_SECOND;
+
+	/**
+	 * The TPS threshold below which the server will generate log warnings.
+	 */
+	private const TPS_OVERLOAD_WARNING_THRESHOLD = self::TARGET_TICKS_PER_SECOND * 0.6;
+
+	private const TICKS_PER_WORLD_CACHE_CLEAR = 5 * self::TARGET_TICKS_PER_SECOND;
+	private const TICKS_PER_TPS_OVERLOAD_WARNING = 5 * self::TARGET_TICKS_PER_SECOND;
+	private const TICKS_PER_STATS_REPORT = 300 * self::TARGET_TICKS_PER_SECOND;
+
 	private static ?Server $instance = null;
 
-	private SleeperHandler $tickSleeper;
+	private TimeTrackingSleeperHandler $tickSleeper;
 
 	private BanList $banByName;
 
@@ -202,7 +226,7 @@ class Server{
 
 	private PluginManager $pluginManager;
 
-	private float $profilingTickRate = 20;
+	private float $profilingTickRate = self::TARGET_TICKS_PER_SECOND;
 
 	private UpdateChecker $updater;
 
@@ -212,10 +236,10 @@ class Server{
 	private int $tickCounter = 0;
 	private float $nextTick = 0;
 	/** @var float[] */
-	private array $tickAverage = [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20];
+	private array $tickAverage;
 	/** @var float[] */
-	private array $useAverage = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
-	private float $currentTPS = 20;
+	private array $useAverage;
+	private float $currentTPS = self::TARGET_TICKS_PER_SECOND;
 	private float $currentUse = 0;
 	private float $startTime;
 
@@ -251,6 +275,8 @@ class Server{
 	private string $dataPath;
 	private string $pluginPath;
 
+	private PlayerDataProvider $playerDataProvider;
+
 	/**
 	 * @var string[]
 	 * @phpstan-var array<string, string>
@@ -484,49 +510,22 @@ class Server{
 		return $result;
 	}
 
-	private function getPlayerDataPath(string $username) : string{
-		return Path::join($this->getDataPath(), 'players', strtolower($username) . '.dat');
-	}
-
 	/**
 	 * Returns whether the server has stored any saved data for this player.
 	 */
 	public function hasOfflinePlayerData(string $name) : bool{
-		return file_exists($this->getPlayerDataPath($name));
-	}
-
-	private function handleCorruptedPlayerData(string $name) : void{
-		$path = $this->getPlayerDataPath($name);
-		rename($path, $path . '.bak');
-		$this->logger->error($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_data_playerCorrupted($name)));
+		return $this->playerDataProvider->hasData($name);
 	}
 
 	public function getOfflinePlayerData(string $name) : ?CompoundTag{
 		return Timings::$syncPlayerDataLoad->time(function() use ($name) : ?CompoundTag{
-			$name = strtolower($name);
-			$path = $this->getPlayerDataPath($name);
-
-			if(file_exists($path)){
-				$contents = @file_get_contents($path);
-				if($contents === false){
-					throw new \RuntimeException("Failed to read player data file \"$path\" (permission denied?)");
-				}
-				$decompressed = @zlib_decode($contents);
-				if($decompressed === false){
-					$this->logger->debug("Failed to decompress raw player data for \"$name\"");
-					$this->handleCorruptedPlayerData($name);
-					return null;
-				}
-
-				try{
-					return (new BigEndianNbtSerializer())->read($decompressed)->mustGetCompoundTag();
-				}catch(NbtDataException $e){ //corrupt data
-					$this->logger->debug("Failed to decode NBT data for \"$name\": " . $e->getMessage());
-					$this->handleCorruptedPlayerData($name);
-					return null;
-				}
+			try{
+				return $this->playerDataProvider->loadData($name);
+			}catch(PlayerDataLoadException $e){
+				$this->logger->debug("Failed to load player data for $name: " . $e->getMessage());
+				$this->logger->error($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_data_playerCorrupted($name)));
+				return null;
 			}
-			return null;
 		});
 	}
 
@@ -540,11 +539,9 @@ 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($ev->getSaveData())), ZLIB_ENCODING_GZIP), "zlib_encode() failed unexpectedly");
 				try{
-					Filesystem::safeFilePutContents($this->getPlayerDataPath($name), $contents);
-				}catch(\RuntimeException $e){
+					$this->playerDataProvider->saveData($name, $ev->getSaveData());
+				}catch(PlayerDataSaveException $e){
 					$this->logger->critical($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_data_saveError($name, $e->getMessage())));
 					$this->logger->logException($e);
 				}
@@ -560,51 +557,47 @@ class Server{
 		$ev->call();
 		$class = $ev->getPlayerClass();
 
-		if($offlinePlayerData !== null && ($world = $this->worldManager->getWorldByName($offlinePlayerData->getString("Level", ""))) !== null){
+		if($offlinePlayerData !== null && ($world = $this->worldManager->getWorldByName($offlinePlayerData->getString(Player::TAG_LEVEL, ""))) !== null){
 			$playerPos = EntityDataHelper::parseLocation($offlinePlayerData, $world);
-			$spawn = $playerPos->asVector3();
 		}else{
 			$world = $this->worldManager->getDefaultWorld();
 			if($world === null){
 				throw new AssumptionFailedError("Default world should always be loaded");
 			}
 			$playerPos = null;
-			$spawn = $world->getSpawnLocation();
 		}
 		/** @phpstan-var PromiseResolver<Player> $playerPromiseResolver */
 		$playerPromiseResolver = new PromiseResolver();
-		$world->requestChunkPopulation($spawn->getFloorX() >> Chunk::COORD_BIT_SIZE, $spawn->getFloorZ() >> Chunk::COORD_BIT_SIZE, null)->onCompletion(
-			function() use ($playerPromiseResolver, $class, $session, $playerInfo, $authenticated, $world, $playerPos, $spawn, $offlinePlayerData) : void{
-				if(!$session->isConnected()){
-					$playerPromiseResolver->reject();
-					return;
-				}
 
-				/* Stick with the original spawn at the time of generation request, even if it changed since then.
-				 * This is because we know for sure that that chunk will be generated, but the one at the new location
-				 * might not be, and it would be much more complex to go back and redo the whole thing.
-				 *
-				 * TODO: this relies on the assumption that getSafeSpawn() will only alter the Y coordinate of the
-				 * provided position. If this assumption is broken, we'll start seeing crashes in here.
-				 */
-
-				/**
-				 * @see Player::__construct()
-				 * @var Player $player
-				 */
-				$player = new $class($this, $session, $playerInfo, $authenticated, $playerPos ?? Location::fromObject($world->getSafeSpawn($spawn), $world), $offlinePlayerData);
-				if(!$player->hasPlayedBefore()){
-					$player->onGround = true;  //TODO: this hack is needed for new players in-air ticks - they don't get detected as on-ground until they move
-				}
-				$playerPromiseResolver->resolve($player);
-			},
-			static function() use ($playerPromiseResolver, $session) : void{
-				if($session->isConnected()){
-					$session->disconnect("Spawn terrain generation failed");
-				}
-				$playerPromiseResolver->reject();
+		$createPlayer = function(Location $location) use ($playerPromiseResolver, $class, $session, $playerInfo, $authenticated, $offlinePlayerData) : void{
+			$player = new $class($this, $session, $playerInfo, $authenticated, $location, $offlinePlayerData);
+			if(!$player->hasPlayedBefore()){
+				$player->onGround = true; //TODO: this hack is needed for new players in-air ticks - they don't get detected as on-ground until they move
 			}
-		);
+			$playerPromiseResolver->resolve($player);
+		};
+
+		if($playerPos === null){ //new player or no valid position due to world not being loaded
+			$world->requestSafeSpawn()->onCompletion(
+				function(Position $spawn) use ($createPlayer, $playerPromiseResolver, $session, $world) : void{
+					if(!$session->isConnected()){
+						$playerPromiseResolver->reject();
+						return;
+					}
+					$createPlayer(Location::fromObject($spawn, $world));
+				},
+				function() use ($playerPromiseResolver, $session) : void{
+					if($session->isConnected()){
+						//TODO: this needs to be localized - this might be reached if the spawn world was unloaded while the player was logging in
+						$session->disconnect("Failed to find a safe spawn location");
+					}
+					$playerPromiseResolver->reject();
+				}
+			);
+		}else{ //returning player with a valid position - safe spawn not required
+			$createPlayer($playerPos);
+		}
+
 		return $playerPromiseResolver->getPromise();
 	}
 
@@ -780,8 +773,11 @@ class Server{
 		}
 		self::$instance = $this;
 		$this->startTime = microtime(true);
+		$this->tickAverage = array_fill(0, self::TARGET_TICKS_PER_SECOND, self::TARGET_TICKS_PER_SECOND);
+		$this->useAverage = array_fill(0, self::TARGET_TICKS_PER_SECOND, 0);
 
-		$this->tickSleeper = new SleeperHandler();
+		Timings::init();
+		$this->tickSleeper = new TimeTrackingSleeperHandler(Timings::$serverInterrupts);
 
 		$this->signalHandler = new SignalHandler(function() : void{
 			$this->logger->info("Received signal interrupt, stopping the server");
@@ -806,7 +802,7 @@ class Server{
 			$this->logger->info("Loading server configuration");
 			$pocketmineYmlPath = Path::join($this->dataPath, "pocketmine.yml");
 			if(!file_exists($pocketmineYmlPath)){
-				$content = Utils::assumeNotFalse(file_get_contents(Path::join(\pocketmine\RESOURCE_PATH, "pocketmine.yml")), "Missing required resource file");
+				$content = Filesystem::fileGetContents(Path::join(\pocketmine\RESOURCE_PATH, "pocketmine.yml"));
 				if(VersionInfo::IS_DEVELOPMENT_BUILD){
 					$content = str_replace("preferred-channel: stable", "preferred-channel: beta", $content);
 				}
@@ -900,6 +896,9 @@ class Server{
 			if($this->configGroup->getPropertyInt("network.batch-threshold", 256) >= 0){
 				$netCompressionThreshold = $this->configGroup->getPropertyInt("network.batch-threshold", 256);
 			}
+			if($netCompressionThreshold < 0){
+				$netCompressionThreshold = null;
+			}
 
 			$netCompressionLevel = $this->configGroup->getPropertyInt("network.compression-level", 6);
 			if($netCompressionLevel < 1 || $netCompressionLevel > 9){
@@ -961,15 +960,14 @@ class Server{
 			)));
 			$this->logger->info($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_license($this->getName())));
 
-			Timings::init();
 			TimingsHandler::setEnabled($this->configGroup->getPropertyBool("settings.enable-profiling", false));
-			$this->profilingTickRate = $this->configGroup->getPropertyInt("settings.profile-report-trigger", 20);
+			$this->profilingTickRate = $this->configGroup->getPropertyInt("settings.profile-report-trigger", self::TARGET_TICKS_PER_SECOND);
 
 			DefaultPermissions::registerCorePermissions();
 
 			$this->commandMap = new SimpleCommandMap($this);
 
-			$this->craftingManager = CraftingManagerFromDataHelper::make(Path::join(\pocketmine\BEDROCK_DATA_PATH, "recipes.json"));
+			$this->craftingManager = CraftingManagerFromDataHelper::make(Path::join(\pocketmine\RESOURCE_PATH, "legacy_recipes.json"));
 
 			$this->resourceManager = new ResourcePackManager(Path::join($this->getDataPath(), "resource_packs"), $this->logger);
 
@@ -979,7 +977,7 @@ class Server{
 				copy(Path::join(\pocketmine\RESOURCE_PATH, 'plugin_list.yml'), $graylistFile);
 			}
 			try{
-				$pluginGraylist = PluginGraylist::fromArray(yaml_parse(file_get_contents($graylistFile)));
+				$pluginGraylist = PluginGraylist::fromArray(yaml_parse(Filesystem::fileGetContents($graylistFile)));
 			}catch(\InvalidArgumentException $e){
 				$this->logger->emergency("Failed to load $graylistFile: " . $e->getMessage());
 				$this->forceShutdownExit();
@@ -1001,12 +999,14 @@ class Server{
 
 			$this->worldManager = new WorldManager($this, Path::join($this->dataPath, "worlds"), $providerManager);
 			$this->worldManager->setAutoSave($this->configGroup->getConfigBool("auto-save", $this->worldManager->getAutoSave()));
-			$this->worldManager->setAutoSaveInterval($this->configGroup->getPropertyInt("ticks-per.autosave", 6000));
+			$this->worldManager->setAutoSaveInterval($this->configGroup->getPropertyInt("ticks-per.autosave", $this->worldManager->getAutoSaveInterval()));
 
 			$this->updater = new UpdateChecker($this, $this->configGroup->getPropertyString("auto-updater.host", "update.pmmp.io"));
 
 			$this->queryInfo = new QueryInfo($this);
 
+			$this->playerDataProvider = new DatFilePlayerDataProvider(Path::join($this->dataPath, "players"));
+
 			register_shutdown_function([$this, "crashDump"]);
 
 			$loadErrorCount = 0;
@@ -1039,7 +1039,7 @@ class Server{
 			}
 
 			if($this->configGroup->getPropertyBool("anonymous-statistics.enabled", true)){
-				$this->sendUsageTicker = 6000;
+				$this->sendUsageTicker = self::TICKS_PER_STATS_REPORT;
 				$this->sendUsage(SendUsageTask::TYPE_OPEN);
 			}
 
@@ -1174,10 +1174,18 @@ class Server{
 		return !$anyWorldFailedToLoad;
 	}
 
-	private function startupPrepareConnectableNetworkInterfaces(string $ip, int $port, bool $ipV6, bool $useQuery) : bool{
+	private function startupPrepareConnectableNetworkInterfaces(
+		string $ip,
+		int $port,
+		bool $ipV6,
+		bool $useQuery,
+		PacketBroadcaster $packetBroadcaster,
+		EntityEventBroadcaster $entityEventBroadcaster,
+		PacketSerializerContext $packetSerializerContext
+	) : bool{
 		$prettyIp = $ipV6 ? "[$ip]" : $ip;
 		try{
-			$rakLibRegistered = $this->network->registerInterface(new RakLibInterface($this, $ip, $port, $ipV6));
+			$rakLibRegistered = $this->network->registerInterface(new RakLibInterface($this, $ip, $port, $ipV6, $packetBroadcaster, $entityEventBroadcaster, $packetSerializerContext));
 		}catch(NetworkInterfaceStartException $e){
 			$this->logger->emergency($this->language->translate(KnownTranslationFactory::pocketmine_server_networkStartFailed(
 				$ip,
@@ -1203,11 +1211,15 @@ class Server{
 	private function startupPrepareNetworkInterfaces() : bool{
 		$useQuery = $this->configGroup->getConfigBool("enable-query", true);
 
+		$packetSerializerContext = new PacketSerializerContext(GlobalItemTypeDictionary::getInstance()->getDictionary());
+		$packetBroadcaster = new StandardPacketBroadcaster($this, $packetSerializerContext);
+		$entityEventBroadcaster = new StandardEntityEventBroadcaster($packetBroadcaster);
+
 		if(
-			!$this->startupPrepareConnectableNetworkInterfaces($this->getIp(), $this->getPort(), false, $useQuery) ||
+			!$this->startupPrepareConnectableNetworkInterfaces($this->getIp(), $this->getPort(), false, $useQuery, $packetBroadcaster, $entityEventBroadcaster, $packetSerializerContext) ||
 			(
 				$this->configGroup->getConfigBool("enable-ipv6", true) &&
-				!$this->startupPrepareConnectableNetworkInterfaces($this->getIpV6(), $this->getPortV6(), true, $useQuery)
+				!$this->startupPrepareConnectableNetworkInterfaces($this->getIpV6(), $this->getPortV6(), true, $useQuery, $packetBroadcaster, $entityEventBroadcaster, $packetSerializerContext)
 			)
 		){
 			return false;
@@ -1339,46 +1351,10 @@ class Server{
 	/**
 	 * @param Player[]            $players
 	 * @param ClientboundPacket[] $packets
+	 * @deprecated
 	 */
 	public function broadcastPackets(array $players, array $packets) : bool{
-		if(count($packets) === 0){
-			throw new \InvalidArgumentException("Cannot broadcast empty list of packets");
-		}
-
-		return Timings::$broadcastPackets->time(function() use ($players, $packets) : bool{
-			/** @var NetworkSession[] $recipients */
-			$recipients = [];
-			foreach($players as $player){
-				if($player->isConnected()){
-					$recipients[] = $player->getNetworkSession();
-				}
-			}
-			if(count($recipients) === 0){
-				return false;
-			}
-
-			$ev = new DataPacketSendEvent($recipients, $packets);
-			$ev->call();
-			if($ev->isCancelled()){
-				return false;
-			}
-			$recipients = $ev->getTargets();
-
-			/** @var PacketBroadcaster[] $broadcasters */
-			$broadcasters = [];
-			/** @var NetworkSession[][] $broadcasterTargets */
-			$broadcasterTargets = [];
-			foreach($recipients as $recipient){
-				$broadcaster = $recipient->getBroadcaster();
-				$broadcasters[spl_object_id($broadcaster)] = $broadcaster;
-				$broadcasterTargets[spl_object_id($broadcaster)][] = $recipient;
-			}
-			foreach($broadcasters as $broadcaster){
-				$broadcaster->broadcastPackets($broadcasterTargets[spl_object_id($broadcaster)], $packets);
-			}
-
-			return true;
-		});
+		return NetworkBroadcastUtils::broadcastPackets($players, $packets);
 	}
 
 	/**
@@ -1386,14 +1362,16 @@ class Server{
 	 *
 	 * @param bool|null $sync Compression on the main thread (true) or workers (false). Default is automatic (null).
 	 */
-	public function prepareBatch(PacketBatch $stream, Compressor $compressor, ?bool $sync = null) : CompressBatchPromise{
+	public function prepareBatch(PacketBatch $stream, Compressor $compressor, ?bool $sync = null, ?TimingsHandler $timings = null) : CompressBatchPromise{
+		$timings ??= Timings::$playerNetworkSendCompress;
 		try{
-			Timings::$playerNetworkSendCompress->startTiming();
+			$timings->startTiming();
 
 			$buffer = $stream->getBuffer();
 
 			if($sync === null){
-				$sync = !($this->networkCompressionAsync && $compressor->willCompress($buffer));
+				$threshold = $compressor->getCompressionThreshold();
+				$sync = !$this->networkCompressionAsync || $threshold === null || strlen($stream->getBuffer()) < $threshold;
 			}
 
 			$promise = new CompressBatchPromise();
@@ -1406,7 +1384,7 @@ class Server{
 
 			return $promise;
 		}finally{
-			Timings::$playerNetworkSendCompress->stopTiming();
+			$timings->stopTiming();
 		}
 	}
 
@@ -1821,11 +1799,11 @@ class Server{
 		$this->network->tick();
 		Timings::$connection->stopTiming();
 
-		if(($this->tickCounter % 20) === 0){
+		if(($this->tickCounter % self::TARGET_TICKS_PER_SECOND) === 0){
 			if($this->doTitleTick){
 				$this->titleTick();
 			}
-			$this->currentTPS = 20;
+			$this->currentTPS = self::TARGET_TICKS_PER_SECOND;
 			$this->currentUse = 0;
 
 			$queryRegenerateEvent = new QueryRegenerateEvent(new QueryInfo($this));
@@ -1837,18 +1815,18 @@ class Server{
 		}
 
 		if($this->sendUsageTicker > 0 && --$this->sendUsageTicker === 0){
-			$this->sendUsageTicker = 6000;
+			$this->sendUsageTicker = self::TICKS_PER_STATS_REPORT;
 			$this->sendUsage(SendUsageTask::TYPE_STATUS);
 		}
 
-		if(($this->tickCounter % 100) === 0){
+		if(($this->tickCounter % self::TICKS_PER_WORLD_CACHE_CLEAR) === 0){
 			foreach($this->worldManager->getWorlds() as $world){
 				$world->clearCache();
 			}
+		}
 
-			if($this->getTicksPerSecondAverage() < 12){
-				$this->logger->warning($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_tickOverload()));
-			}
+		if(($this->tickCounter % self::TICKS_PER_TPS_OVERLOAD_WARNING) === 0 && $this->getTicksPerSecondAverage() < self::TPS_OVERLOAD_WARNING_THRESHOLD){
+			$this->logger->warning($this->getLanguage()->translate(KnownTranslationFactory::pocketmine_server_tickOverload()));
 		}
 
 		$this->getMemoryManager()->check();
@@ -1865,19 +1843,21 @@ class Server{
 		Timings::$serverTick->stopTiming();
 
 		$now = microtime(true);
-		$this->currentTPS = min(20, 1 / max(0.001, $now - $tickTime));
-		$this->currentUse = min(1, ($now - $tickTime) / 0.05);
+		$totalTickTimeSeconds = $now - $tickTime + ($this->tickSleeper->getNotificationProcessingTime() / 1_000_000_000);
+		$this->currentTPS = min(self::TARGET_TICKS_PER_SECOND, 1 / max(0.001, $totalTickTimeSeconds));
+		$this->currentUse = min(1, $totalTickTimeSeconds / self::TARGET_SECONDS_PER_TICK);
 
 		TimingsHandler::tick($this->currentTPS <= $this->profilingTickRate);
 
-		$idx = $this->tickCounter % 20;
+		$idx = $this->tickCounter % self::TARGET_TICKS_PER_SECOND;
 		$this->tickAverage[$idx] = $this->currentTPS;
 		$this->useAverage[$idx] = $this->currentUse;
+		$this->tickSleeper->resetNotificationProcessingTime();
 
 		if(($this->nextTick - $tickTime) < -1){
 			$this->nextTick = $tickTime;
 		}else{
-			$this->nextTick += 0.05;
+			$this->nextTick += self::TARGET_SECONDS_PER_TICK;
 		}
 	}
 }

src/TimeTrackingSleeperHandler.php

@@ -0,0 +1,64 @@
+<?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;
+
+use pocketmine\snooze\SleeperHandler;
+use pocketmine\timings\TimingsHandler;
+use function hrtime;
+
+/**
+ * Custom Snooze sleeper handler which captures notification processing time.
+ * @internal
+ */
+final class TimeTrackingSleeperHandler extends SleeperHandler{
+
+	private int $notificationProcessingTimeNs = 0;
+
+	public function __construct(
+		private TimingsHandler $timings
+	){
+		parent::__construct();
+	}
+
+	/**
+	 * Returns the time in nanoseconds spent processing notifications since the last reset.
+	 */
+	public function getNotificationProcessingTime() : int{ return $this->notificationProcessingTimeNs; }
+
+	/**
+	 * Resets the notification processing time tracker to zero.
+	 */
+	public function resetNotificationProcessingTime() : void{ $this->notificationProcessingTimeNs = 0; }
+
+	public function processNotifications() : void{
+		$startTime = hrtime(true);
+		$this->timings->startTiming();
+		try{
+			parent::processNotifications();
+		}finally{
+			$this->notificationProcessingTimeNs += hrtime(true) - $startTime;
+			$this->timings->stopTiming();
+		}
+	}
+}

src/VersionInfo.php

@@ -31,9 +31,9 @@ use function str_repeat;
 
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
-	public const BASE_VERSION = "4.12.7";
+	public const BASE_VERSION = "4.18.0-ALPHA2";
 	public const IS_DEVELOPMENT_BUILD = false;
-	public const BUILD_CHANNEL = "stable";
+	public const BUILD_CHANNEL = "alpha";
 
 	private function __construct(){
 		//NOOP

src/block/BaseBanner.php

@@ -112,7 +112,14 @@ abstract class BaseBanner extends Transparent{
 		return SupportType::NONE();
 	}
 
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->isSolid();
+	}
+
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if(!$this->canBeSupportedBy($blockReplace->getSide($this->getSupportingFace()))){
+			return false;
+		}
 		if($item instanceof ItemBanner){
 			$this->color = $item->getColor();
 			$this->setPatterns($item->getPatterns());
@@ -124,7 +131,7 @@ abstract class BaseBanner extends Transparent{
 	abstract protected function getSupportingFace() : int;
 
 	public function onNearbyBlockChange() : void{
-		if($this->getSide($this->getSupportingFace())->getId() === BlockLegacyIds::AIR){
+		if(!$this->canBeSupportedBy($this->getSide($this->getSupportingFace()))){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}

src/block/Bell.php

@@ -114,14 +114,13 @@ final class Bell extends Transparent{
 		return $this;
 	}
 
-	private function canBeSupportedBy(Block $block) : bool{
-		//TODO: this isn't the actual logic, but it's the closest approximation we can support for now
-		return $block->isSolid();
+	private function canBeSupportedBy(Block $block, int $face) : bool{
+		return !$block->getSupportType($face)->equals(SupportType::NONE());
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($face === Facing::UP){
-			if(!$this->canBeSupportedBy($tx->fetchBlock($this->position->down()))){
+			if(!$this->canBeSupportedBy($tx->fetchBlock($this->position->down()), Facing::UP)){
 				return false;
 			}
 			if($player !== null){
@@ -129,18 +128,18 @@ final class Bell extends Transparent{
 			}
 			$this->setAttachmentType(BellAttachmentType::FLOOR());
 		}elseif($face === Facing::DOWN){
-			if(!$this->canBeSupportedBy($tx->fetchBlock($this->position->up()))){
+			if(!$this->canBeSupportedBy($tx->fetchBlock($this->position->up()), Facing::DOWN)){
 				return false;
 			}
 			$this->setAttachmentType(BellAttachmentType::CEILING());
 		}else{
 			$this->setFacing($face);
-			if($this->canBeSupportedBy($tx->fetchBlock($this->position->getSide(Facing::opposite($face))))){
+			if($this->canBeSupportedBy($tx->fetchBlock($this->position->getSide(Facing::opposite($face))), $face)){
 				$this->setAttachmentType(BellAttachmentType::ONE_WALL());
 			}else{
 				return false;
 			}
-			if($this->canBeSupportedBy($tx->fetchBlock($this->position->getSide($face)))){
+			if($this->canBeSupportedBy($tx->fetchBlock($this->position->getSide($face)), Facing::opposite($face))){
 				$this->setAttachmentType(BellAttachmentType::TWO_WALLS());
 			}
 		}
@@ -149,10 +148,10 @@ final class Bell extends Transparent{
 
 	public function onNearbyBlockChange() : void{
 		if(
-			($this->attachmentType->equals(BellAttachmentType::CEILING()) && !$this->canBeSupportedBy($this->getSide(Facing::UP))) ||
-			($this->attachmentType->equals(BellAttachmentType::FLOOR()) && !$this->canBeSupportedBy($this->getSide(Facing::DOWN))) ||
-			($this->attachmentType->equals(BellAttachmentType::ONE_WALL()) && !$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)))) ||
-			($this->attachmentType->equals(BellAttachmentType::TWO_WALLS()) && (!$this->canBeSupportedBy($this->getSide($this->facing)) || !$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)))))
+			($this->attachmentType->equals(BellAttachmentType::CEILING()) && !$this->canBeSupportedBy($this->getSide(Facing::UP), Facing::DOWN)) ||
+			($this->attachmentType->equals(BellAttachmentType::FLOOR()) && !$this->canBeSupportedBy($this->getSide(Facing::DOWN), Facing::UP)) ||
+			($this->attachmentType->equals(BellAttachmentType::ONE_WALL()) && !$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)), $this->facing)) ||
+			($this->attachmentType->equals(BellAttachmentType::TWO_WALLS()) && (!$this->canBeSupportedBy($this->getSide($this->facing), Facing::opposite($this->facing)) || !$this->canBeSupportedBy($this->getSide(Facing::opposite($this->facing)), $this->facing)))
 		){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
@@ -161,21 +160,20 @@ final class Bell extends Transparent{
 	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
 			$faceHit = Facing::opposite($player->getHorizontalFacing());
-			if($this->attachmentType->equals(BellAttachmentType::CEILING())){
-				$this->ring($faceHit);
-			}
-			if($this->attachmentType->equals(BellAttachmentType::FLOOR()) && Facing::axis($faceHit) === Facing::axis($this->facing)){
-				$this->ring($faceHit);
-			}
 			if(
-				($this->attachmentType->equals(BellAttachmentType::ONE_WALL()) || $this->attachmentType->equals(BellAttachmentType::TWO_WALLS())) &&
-				($faceHit === Facing::rotateY($this->facing, false) || $faceHit === Facing::rotateY($this->facing, true))
+				$this->attachmentType->equals(BellAttachmentType::CEILING()) ||
+				($this->attachmentType->equals(BellAttachmentType::FLOOR()) && Facing::axis($faceHit) === Facing::axis($this->facing)) ||
+				(
+					($this->attachmentType->equals(BellAttachmentType::ONE_WALL()) || $this->attachmentType->equals(BellAttachmentType::TWO_WALLS())) &&
+					($faceHit === Facing::rotateY($this->facing, false) || $faceHit === Facing::rotateY($this->facing, true))
+				)
 			){
 				$this->ring($faceHit);
+				return true;
 			}
 		}
 
-		return true;
+		return false;
 	}
 
 	public function ring(int $faceHit) : void{

src/block/Block.php

@@ -253,6 +253,14 @@ class Block{
 	 * Generates a block transaction to set all blocks affected by placing this block. Usually this is just the block
 	 * itself, but may be multiple blocks in some cases (such as doors).
 	 *
+	 * @param BlockTransaction $tx           Blocks to be set should be added to this transaction (do not modify thr world directly)
+	 * @param Item             $item         Item used to place the block
+	 * @param Block            $blockReplace Block expected to be replaced
+	 * @param Block            $blockClicked Block that was clicked using the item
+	 * @param int              $face         Face of the clicked block which was clicked
+	 * @param Vector3          $clickVector  Exact position inside the clicked block where the click occurred, relative to the block's position
+	 * @param Player|null      $player       Player who placed the block, or null if it was not a player
+	 *
 	 * @return bool whether the placement should go ahead
 	 */
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{

src/block/Button.php

@@ -61,7 +61,7 @@ abstract class Button extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($this->canBeSupportedBy($blockClicked, $face)){
+		if($this->canBeSupportedBy($blockReplace->getSide(Facing::opposite($face)), $face)){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}

src/block/ItemFrame.php

@@ -175,7 +175,7 @@ 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 || $face === Facing::UP || !$blockClicked->isSolid()){
+		if($face === Facing::DOWN || $face === Facing::UP || !$blockReplace->getSide(Facing::opposite($face))->isSolid()){
 			return false;
 		}
 

src/block/Jukebox.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\tile\Jukebox as JukeboxTile;
 use pocketmine\item\Item;
 use pocketmine\item\Record;
+use pocketmine\lang\KnownTranslationKeys;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\sound\RecordSound;
@@ -44,7 +45,7 @@ class Jukebox extends Opaque{
 			if($this->record !== null){
 				$this->ejectRecord();
 			}elseif($item instanceof Record){
-				$player->sendJukeboxPopup("record.nowPlaying", [$player->getLanguage()->translate($item->getRecordType()->getTranslatableName())]);
+				$player->sendJukeboxPopup(KnownTranslationKeys::RECORD_NOWPLAYING, [$player->getLanguage()->translate($item->getRecordType()->getTranslatableName())]);
 				$this->insertRecord($item->pop());
 			}
 		}

src/block/Ladder.php

@@ -70,7 +70,7 @@ class Ladder extends Transparent{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($this->canBeSupportedBy($blockClicked, $face) && Facing::axis($face) !== Axis::Y){
+		if($this->canBeSupportedBy($blockReplace->getSide(Facing::opposite($face)), $face) && Facing::axis($face) !== Axis::Y){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}

src/block/Lever.php

@@ -95,7 +95,7 @@ class Lever extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$this->canBeSupportedBy($blockClicked, $face)){
+		if(!$this->canBeSupportedBy($blockReplace->getSide(Facing::opposite($face)), $face)){
 			return false;
 		}
 

src/block/PressurePlate.php

@@ -45,7 +45,7 @@ abstract class PressurePlate extends Transparent{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($this->canBeSupportedBy($blockClicked)){
+		if($this->canBeSupportedBy($blockReplace->getSide(Facing::DOWN))){
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
 		return false;
@@ -55,5 +55,11 @@ abstract class PressurePlate extends Transparent{
 		return !$block->getSupportType(Facing::UP)->equals(SupportType::NONE());
 	}
 
+	public function onNearbyBlockChange() : void{
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN))){
+			$this->position->getWorld()->useBreakOn($this->position);
+		}
+	}
+
 	//TODO
 }

src/block/RedMushroomBlock.php

@@ -34,7 +34,7 @@ class RedMushroomBlock extends Opaque{
 	protected MushroomBlockType $mushroomBlockType;
 
 	public function __construct(BlockIdentifier $idInfo, string $name, BlockBreakInfo $breakInfo){
-		$this->mushroomBlockType = MushroomBlockType::PORES();
+		$this->mushroomBlockType = MushroomBlockType::ALL_CAP();
 		parent::__construct($idInfo, $name, $breakInfo);
 	}
 
@@ -42,6 +42,11 @@ class RedMushroomBlock extends Opaque{
 		return MushroomBlockTypeIdMap::getInstance()->toId($this->mushroomBlockType);
 	}
 
+	protected function writeStateToItemMeta() : int{
+		//these blocks always drop as all-cap, but may exist in other forms in the inventory (particularly creative)
+		return BlockLegacyMetadata::MUSHROOM_BLOCK_ALL_CAP;
+	}
+
 	public function readStateFromData(int $id, int $stateMeta) : void{
 		$type = MushroomBlockTypeIdMap::getInstance()->fromId($stateMeta);
 		if($type === null){

src/block/Thin.php

@@ -41,7 +41,7 @@ class Thin extends Transparent{
 
 		foreach(Facing::HORIZONTAL as $facing){
 			$side = $this->getSide($facing);
-			if($side instanceof Thin || $side->isFullCube()){
+			if($side instanceof Thin || $side instanceof Wall || $side->isFullCube()){
 				$this->connections[$facing] = true;
 			}else{
 				unset($this->connections[$facing]);

src/block/Torch.php

@@ -65,7 +65,6 @@ class Torch extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		$below = $this->getSide(Facing::DOWN);
 		$face = Facing::opposite($this->facing);
 
 		if(!$this->canBeSupportedBy($this->getSide($face), $this->facing)){
@@ -74,10 +73,7 @@ class Torch extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($blockClicked->canBeReplaced() && $this->canBeSupportedBy($blockClicked->getSide(Facing::DOWN), Facing::UP)){
-			$this->facing = Facing::UP;
-			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
-		}elseif($face !== Facing::DOWN && $this->canBeSupportedBy($blockClicked, $face)){
+		if($face !== Facing::DOWN && $this->canBeSupportedBy($blockReplace->getSide(Facing::opposite($face)), $face)){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}else{

src/block/Vine.php

@@ -116,7 +116,7 @@ class Vine extends Flowable{
 	}
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(!$blockClicked->isFullCube() || Facing::axis($face) === Axis::Y){
+		if(!$blockReplace->getSide(Facing::opposite($face))->isFullCube() || Facing::axis($face) === Axis::Y){
 			return false;
 		}
 

src/block/Wall.php

@@ -39,7 +39,7 @@ class Wall extends Transparent{
 
 		foreach(Facing::HORIZONTAL as $facing){
 			$block = $this->getSide($facing);
-			if($block instanceof static || $block instanceof FenceGate || ($block->isSolid() && !$block->isTransparent())){
+			if($block instanceof static || $block instanceof FenceGate || $block instanceof Thin || ($block->isSolid() && !$block->isTransparent())){
 				$this->connections[$facing] = $facing;
 			}else{
 				unset($this->connections[$facing]);

src/block/WallCoralFan.php

@@ -113,7 +113,7 @@ final class WallCoralFan extends BaseCoral{
 
 	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$axis = Facing::axis($face);
-		if(($axis !== Axis::X && $axis !== Axis::Z) || !$this->canBeSupportedBy($blockClicked, $face)){
+		if(($axis !== Axis::X && $axis !== Axis::Z) || !$this->canBeSupportedBy($blockReplace->getSide(Facing::opposite($face)), $face)){
 			return false;
 		}
 		$this->facing = $face;

src/block/WaterLily.php

@@ -39,19 +39,23 @@ class WaterLily extends Flowable{
 		return [AxisAlignedBB::one()->contract(1 / 16, 0, 1 / 16)->trim(Facing::UP, 63 / 64)];
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if($blockClicked instanceof Water){
-			$up = $blockClicked->getSide(Facing::UP);
-			if($up->canBeReplaced()){
-				return parent::place($tx, $item, $up, $blockClicked, $face, $clickVector, $player);
-			}
-		}
+	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, int $face, bool $isClickedBlock) : bool{
+		return !$blockReplace instanceof Water && parent::canBePlacedAt($blockReplace, $clickVector, $face, $isClickedBlock);
+	}
 
-		return false;
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block instanceof Water;
+	}
+
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if(!$this->canBeSupportedBy($blockReplace->getSide(Facing::DOWN))){
+			return false;
+		}
+		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!($this->getSide(Facing::DOWN) instanceof Water)){
+		if(!$this->canBeSupportedBy($this->getSide(Facing::DOWN))){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}

src/block/tile/ContainerTrait.php

@@ -52,7 +52,7 @@ trait ContainerTrait{
 			$newContents = [];
 			/** @var CompoundTag $itemNBT */
 			foreach($inventoryTag as $itemNBT){
-				$newContents[$itemNBT->getByte("Slot")] = Item::nbtDeserialize($itemNBT);
+				$newContents[$itemNBT->getByte(Item::TAG_SLOT)] = Item::nbtDeserialize($itemNBT);
 			}
 			$inventory->setContents($newContents);
 

src/block/utils/SignText.php

@@ -30,7 +30,7 @@ use function array_slice;
 use function count;
 use function explode;
 use function is_int;
-use function strpos;
+use function str_contains;
 
 class SignText{
 	public const LINE_COUNT = 4;
@@ -54,7 +54,7 @@ class SignText{
 			foreach($lines as $k => $line){
 				$this->checkLineIndex($k);
 				Utils::checkUTF8($line);
-				if(strpos($line, "\n") !== false){
+				if(str_contains($line, "\n")){
 					throw new \InvalidArgumentException("Line must not contain newlines");
 				}
 				//TODO: add length checks

src/command/SimpleCommandMap.php

@@ -72,8 +72,8 @@ use pocketmine\utils\TextFormat;
 use function array_shift;
 use function count;
 use function implode;
+use function str_contains;
 use function strcasecmp;
-use function strpos;
 use function strtolower;
 use function trim;
 
@@ -238,7 +238,7 @@ class SimpleCommandMap implements CommandMap{
 		$values = $this->server->getCommandAliases();
 
 		foreach($values as $alias => $commandStrings){
-			if(strpos($alias, ":") !== false){
+			if(str_contains($alias, ":")){
 				$this->server->getLogger()->warning($this->server->getLanguage()->translate(KnownTranslationFactory::pocketmine_command_alias_illegal($alias)));
 				continue;
 			}

src/command/defaults/ClearCommand.php

@@ -33,7 +33,6 @@ use pocketmine\item\LegacyStringToItemParserException;
 use pocketmine\item\StringToItemParser;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
-use pocketmine\player\Player;
 use pocketmine\utils\TextFormat;
 use function count;
 use function implode;
@@ -59,23 +58,9 @@ class ClearCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		if(isset($args[0])){
-			$target = $sender->getServer()->getPlayerByPrefix($args[0]);
-			if($target === null){
-				$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
-				return true;
-			}
-			if($target !== $sender && !$this->testPermission($sender, DefaultPermissionNames::COMMAND_CLEAR_OTHER)){
-				return true;
-			}
-		}elseif($sender instanceof Player){
-			if(!$this->testPermission($sender, DefaultPermissionNames::COMMAND_CLEAR_SELF)){
-				return true;
-			}
-
-			$target = $sender;
-		}else{
-			throw new InvalidCommandSyntaxException();
+		$target = $this->fetchPermittedPlayerTarget($sender, $args[0] ?? null, DefaultPermissionNames::COMMAND_CLEAR_SELF, DefaultPermissionNames::COMMAND_CLEAR_OTHER);
+		if($target === null){
+			return true;
 		}
 
 		$targetItem = null;

src/command/defaults/DumpMemoryCommand.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\command\defaults;
 
 use pocketmine\command\CommandSender;
+use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
 use Symfony\Component\Filesystem\Path;
 use function date;
@@ -33,7 +34,7 @@ class DumpMemoryCommand extends VanillaCommand{
 	public function __construct(string $name){
 		parent::__construct(
 			$name,
-			"Dumps the memory",
+			KnownTranslationFactory::pocketmine_command_dumpmemory_description(),
 			"/$name [path]"
 		);
 		$this->setPermission(DefaultPermissionNames::COMMAND_DUMPMEMORY);

src/command/defaults/EffectCommand.php

@@ -32,6 +32,7 @@ use pocketmine\permission\DefaultPermissionNames;
 use pocketmine\utils\Limits;
 use pocketmine\utils\TextFormat;
 use function count;
+use function implode;
 use function strtolower;
 
 class EffectCommand extends VanillaCommand{
@@ -42,7 +43,10 @@ class EffectCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_effect_description(),
 			KnownTranslationFactory::commands_effect_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_EFFECT);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_EFFECT_SELF,
+			DefaultPermissionNames::COMMAND_EFFECT_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -54,10 +58,8 @@ class EffectCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		$player = $sender->getServer()->getPlayerByPrefix($args[0]);
-
+		$player = $this->fetchPermittedPlayerTarget($sender, $args[0], DefaultPermissionNames::COMMAND_EFFECT_SELF, DefaultPermissionNames::COMMAND_EFFECT_OTHER);
 		if($player === null){
-			$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
 			return true;
 		}
 		$effectManager = $player->getEffects();

src/command/defaults/EnchantCommand.php

@@ -29,8 +29,8 @@ use pocketmine\item\enchantment\EnchantmentInstance;
 use pocketmine\item\enchantment\StringToEnchantmentParser;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
-use pocketmine\utils\TextFormat;
 use function count;
+use function implode;
 
 class EnchantCommand extends VanillaCommand{
 
@@ -40,7 +40,10 @@ class EnchantCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_enchant_description(),
 			KnownTranslationFactory::commands_enchant_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_ENCHANT);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_ENCHANT_SELF,
+			DefaultPermissionNames::COMMAND_ENCHANT_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -52,10 +55,8 @@ class EnchantCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		$player = $sender->getServer()->getPlayerByPrefix($args[0]);
-
+		$player = $this->fetchPermittedPlayerTarget($sender, $args[0], DefaultPermissionNames::COMMAND_ENCHANT_SELF, DefaultPermissionNames::COMMAND_ENCHANT_OTHER);
 		if($player === null){
-			$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
 			return true;
 		}
 

src/command/defaults/GamemodeCommand.php

@@ -29,9 +29,8 @@ use pocketmine\command\utils\InvalidCommandSyntaxException;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
 use pocketmine\player\GameMode;
-use pocketmine\player\Player;
-use pocketmine\utils\TextFormat;
 use function count;
+use function implode;
 
 class GamemodeCommand extends VanillaCommand{
 
@@ -41,7 +40,10 @@ class GamemodeCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_gamemode_description(),
 			KnownTranslationFactory::commands_gamemode_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_GAMEMODE);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_GAMEMODE_SELF,
+			DefaultPermissionNames::COMMAND_GAMEMODE_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -59,17 +61,9 @@ class GamemodeCommand extends VanillaCommand{
 			return true;
 		}
 
-		if(isset($args[1])){
-			$target = $sender->getServer()->getPlayerByPrefix($args[1]);
-			if($target === null){
-				$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
-
-				return true;
-			}
-		}elseif($sender instanceof Player){
-			$target = $sender;
-		}else{
-			throw new InvalidCommandSyntaxException();
+		$target = $this->fetchPermittedPlayerTarget($sender, $args[1] ?? null, DefaultPermissionNames::COMMAND_GAMEMODE_SELF, DefaultPermissionNames::COMMAND_GAMEMODE_OTHER);
+		if($target === null){
+			return true;
 		}
 
 		if($target->getGamemode()->equals($gameMode)){

src/command/defaults/GiveCommand.php

@@ -47,7 +47,10 @@ class GiveCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_give_description(),
 			KnownTranslationFactory::pocketmine_command_give_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_GIVE);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_GIVE_SELF,
+			DefaultPermissionNames::COMMAND_GIVE_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -59,9 +62,8 @@ class GiveCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		$player = $sender->getServer()->getPlayerByPrefix($args[0]);
+		$player = $this->fetchPermittedPlayerTarget($sender, $args[0], DefaultPermissionNames::COMMAND_GIVE_SELF, DefaultPermissionNames::COMMAND_GIVE_OTHER);
 		if($player === null){
-			$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
 			return true;
 		}
 

src/command/defaults/KillCommand.php

@@ -29,8 +29,6 @@ use pocketmine\command\utils\InvalidCommandSyntaxException;
 use pocketmine\event\entity\EntityDamageEvent;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
-use pocketmine\player\Player;
-use pocketmine\utils\TextFormat;
 use function count;
 use function implode;
 
@@ -55,32 +53,16 @@ class KillCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		if(count($args) === 1){
-			if(!$this->testPermission($sender, DefaultPermissionNames::COMMAND_KILL_OTHER)){
-				return true;
-			}
-
-			$player = $sender->getServer()->getPlayerByPrefix($args[0]);
-
-			if($player instanceof Player){
-				$player->attack(new EntityDamageEvent($player, EntityDamageEvent::CAUSE_SUICIDE, 1000));
-				Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_kill_successful($player->getName()));
-			}else{
-				$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
-			}
-
+		$player = $this->fetchPermittedPlayerTarget($sender, $args[0] ?? null, DefaultPermissionNames::COMMAND_KILL_SELF, DefaultPermissionNames::COMMAND_KILL_OTHER);
+		if($player === null){
 			return true;
 		}
 
-		if($sender instanceof Player){
-			if(!$this->testPermission($sender, DefaultPermissionNames::COMMAND_KILL_SELF)){
-				return true;
-			}
-
-			$sender->attack(new EntityDamageEvent($sender, EntityDamageEvent::CAUSE_SUICIDE, 1000));
+		$player->attack(new EntityDamageEvent($player, EntityDamageEvent::CAUSE_SUICIDE, 1000));
+		if($player === $sender){
 			$sender->sendMessage(KnownTranslationFactory::commands_kill_successful($sender->getName()));
 		}else{
-			throw new InvalidCommandSyntaxException();
+			Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_kill_successful($player->getName()));
 		}
 
 		return true;

src/command/defaults/ParticleCommand.php

@@ -70,7 +70,7 @@ use function explode;
 use function max;
 use function microtime;
 use function mt_rand;
-use function strpos;
+use function str_starts_with;
 use function strtolower;
 
 class ParticleCommand extends VanillaCommand{
@@ -208,17 +208,17 @@ class ParticleCommand extends VanillaCommand{
 				return new EntityFlameParticle();
 		}
 
-		if(strpos($name, "iconcrack_") === 0){
+		if(str_starts_with($name, "iconcrack_")){
 			$d = explode("_", $name);
 			if(count($d) === 3){
 				return new ItemBreakParticle(ItemFactory::getInstance()->get((int) $d[1], (int) $d[2]));
 			}
-		}elseif(strpos($name, "blockcrack_") === 0){
+		}elseif(str_starts_with($name, "blockcrack_")){
 			$d = explode("_", $name);
 			if(count($d) === 2){
 				return new TerrainParticle(BlockFactory::getInstance()->get(((int) $d[1]) & 0xff, ((int) $d[1]) >> 12));
 			}
-		}elseif(strpos($name, "blockdust_") === 0){
+		}elseif(str_starts_with($name, "blockdust_")){
 			$d = explode("_", $name);
 			if(count($d) >= 4){
 				return new DustParticle(new Color(((int) $d[1]) & 0xff, ((int) $d[2]) & 0xff, ((int) $d[3]) & 0xff, isset($d[4]) ? ((int) $d[4]) & 0xff : 255));

src/command/defaults/SpawnpointCommand.php

@@ -29,10 +29,10 @@ use pocketmine\command\utils\InvalidCommandSyntaxException;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
 use pocketmine\player\Player;
-use pocketmine\utils\TextFormat;
 use pocketmine\world\Position;
 use pocketmine\world\World;
 use function count;
+use function implode;
 use function round;
 
 class SpawnpointCommand extends VanillaCommand{
@@ -43,7 +43,10 @@ class SpawnpointCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_spawnpoint_description(),
 			KnownTranslationFactory::commands_spawnpoint_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_SPAWNPOINT);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_SPAWNPOINT_SELF,
+			DefaultPermissionNames::COMMAND_SPAWNPOINT_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -51,23 +54,9 @@ class SpawnpointCommand extends VanillaCommand{
 			return true;
 		}
 
-		$target = null;
-
-		if(count($args) === 0){
-			if($sender instanceof Player){
-				$target = $sender;
-			}else{
-				$sender->sendMessage(TextFormat::RED . "Please provide a player!");
-
-				return true;
-			}
-		}else{
-			$target = $sender->getServer()->getPlayerByPrefix($args[0]);
-			if($target === null){
-				$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
-
-				return true;
-			}
+		$target = $this->fetchPermittedPlayerTarget($sender, $args[0] ?? null, DefaultPermissionNames::COMMAND_SPAWNPOINT_SELF, DefaultPermissionNames::COMMAND_SPAWNPOINT_OTHER);
+		if($target === null){
+			return true;
 		}
 
 		if(count($args) === 4){
@@ -81,19 +70,13 @@ class SpawnpointCommand extends VanillaCommand{
 			Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_spawnpoint_success($target->getName(), (string) round($x, 2), (string) round($y, 2), (string) round($z, 2)));
 
 			return true;
-		}elseif(count($args) <= 1){
-			if($sender instanceof Player){
-				$cpos = $sender->getPosition();
-				$pos = Position::fromObject($cpos->floor(), $cpos->getWorld());
-				$target->setSpawn($pos);
+		}elseif(count($args) <= 1 && $sender instanceof Player){
+			$cpos = $sender->getPosition();
+			$pos = Position::fromObject($cpos->floor(), $cpos->getWorld());
+			$target->setSpawn($pos);
 
-				Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_spawnpoint_success($target->getName(), (string) round($pos->x, 2), (string) round($pos->y, 2), (string) round($pos->z, 2)));
-				return true;
-			}else{
-				$sender->sendMessage(TextFormat::RED . "Please provide a player!");
-
-				return true;
-			}
+			Command::broadcastCommandMessage($sender, KnownTranslationFactory::commands_spawnpoint_success($target->getName(), (string) round($pos->x, 2), (string) round($pos->y, 2), (string) round($pos->z, 2)));
+			return true;
 		}
 
 		throw new InvalidCommandSyntaxException();

src/command/defaults/TeleportCommand.php

@@ -35,6 +35,7 @@ use pocketmine\utils\TextFormat;
 use pocketmine\world\World;
 use function array_shift;
 use function count;
+use function implode;
 use function round;
 
 class TeleportCommand extends VanillaCommand{
@@ -46,7 +47,10 @@ class TeleportCommand extends VanillaCommand{
 			KnownTranslationFactory::commands_tp_usage(),
 			["teleport"]
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_TELEPORT);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_TELEPORT_SELF,
+			DefaultPermissionNames::COMMAND_TELEPORT_OTHER
+		]));
 	}
 
 	private function findPlayer(CommandSender $sender, string $playerName) : ?Player{
@@ -67,31 +71,25 @@ class TeleportCommand extends VanillaCommand{
 			case 1: // /tp targetPlayer
 			case 3: // /tp x y z
 			case 5: // /tp x y z yaw pitch - TODO: 5 args could be target x y z yaw :(
-				if(!($sender instanceof Player)){
-					$sender->sendMessage(TextFormat::RED . "Please provide a player!");
-					return true;
-				}
-
-				$subject = $sender;
-				$targetArgs = $args;
+				$subjectName = null; //self
 				break;
 			case 2: // /tp player1 player2
 			case 4: // /tp player1 x y z - TODO: 4 args could be x y z yaw :(
 			case 6: // /tp player1 x y z yaw pitch
-				$subject = $this->findPlayer($sender, $args[0]);
-				if($subject === null){
-					return true;
-				}
-				$targetArgs = $args;
-				array_shift($targetArgs);
+				$subjectName = array_shift($args);
 				break;
 			default:
 				throw new InvalidCommandSyntaxException();
 		}
 
-		switch(count($targetArgs)){
+		$subject = $this->fetchPermittedPlayerTarget($sender, $subjectName, DefaultPermissionNames::COMMAND_TELEPORT_SELF, DefaultPermissionNames::COMMAND_TELEPORT_OTHER);
+		if($subject === null){
+			return true;
+		}
+
+		switch(count($args)){
 			case 1:
-				$targetPlayer = $this->findPlayer($sender, $targetArgs[0]);
+				$targetPlayer = $this->findPlayer($sender, $args[0]);
 				if($targetPlayer === null){
 					return true;
 				}
@@ -103,17 +101,17 @@ class TeleportCommand extends VanillaCommand{
 			case 3:
 			case 5:
 				$base = $subject->getLocation();
-				if(count($targetArgs) === 5){
-					$yaw = (float) $targetArgs[3];
-					$pitch = (float) $targetArgs[4];
+				if(count($args) === 5){
+					$yaw = (float) $args[3];
+					$pitch = (float) $args[4];
 				}else{
 					$yaw = $base->yaw;
 					$pitch = $base->pitch;
 				}
 
-				$x = $this->getRelativeDouble($base->x, $sender, $targetArgs[0]);
-				$y = $this->getRelativeDouble($base->y, $sender, $targetArgs[1], World::Y_MIN, World::Y_MAX);
-				$z = $this->getRelativeDouble($base->z, $sender, $targetArgs[2]);
+				$x = $this->getRelativeDouble($base->x, $sender, $args[0]);
+				$y = $this->getRelativeDouble($base->y, $sender, $args[1], World::Y_MIN, World::Y_MAX);
+				$z = $this->getRelativeDouble($base->z, $sender, $args[2]);
 				$targetLocation = new Location($x, $y, $z, $base->getWorld(), $yaw, $pitch);
 
 				$subject->teleport($targetLocation);

src/command/defaults/TitleCommand.php

@@ -27,7 +27,6 @@ use pocketmine\command\CommandSender;
 use pocketmine\command\utils\InvalidCommandSyntaxException;
 use pocketmine\lang\KnownTranslationFactory;
 use pocketmine\permission\DefaultPermissionNames;
-use pocketmine\utils\TextFormat;
 use function array_slice;
 use function count;
 use function implode;
@@ -40,7 +39,10 @@ class TitleCommand extends VanillaCommand{
 			KnownTranslationFactory::pocketmine_command_title_description(),
 			KnownTranslationFactory::commands_title_usage()
 		);
-		$this->setPermission(DefaultPermissionNames::COMMAND_TITLE);
+		$this->setPermission(implode(";", [
+			DefaultPermissionNames::COMMAND_TITLE_SELF,
+			DefaultPermissionNames::COMMAND_TITLE_OTHER
+		]));
 	}
 
 	public function execute(CommandSender $sender, string $commandLabel, array $args){
@@ -52,9 +54,8 @@ class TitleCommand extends VanillaCommand{
 			throw new InvalidCommandSyntaxException();
 		}
 
-		$player = $sender->getServer()->getPlayerByPrefix($args[0]);
+		$player = $this->fetchPermittedPlayerTarget($sender, $args[0], DefaultPermissionNames::COMMAND_TITLE_SELF, DefaultPermissionNames::COMMAND_TITLE_OTHER);
 		if($player === null){
-			$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
 			return true;
 		}
 

src/command/defaults/VanillaCommand.php

@@ -27,6 +27,7 @@ use pocketmine\command\Command;
 use pocketmine\command\CommandSender;
 use pocketmine\command\utils\InvalidCommandSyntaxException;
 use pocketmine\lang\KnownTranslationFactory;
+use pocketmine\player\Player;
 use pocketmine\utils\TextFormat;
 use function is_numeric;
 use function substr;
@@ -35,6 +36,28 @@ abstract class VanillaCommand extends Command{
 	public const MAX_COORD = 30000000;
 	public const MIN_COORD = -30000000;
 
+	protected function fetchPermittedPlayerTarget(CommandSender $sender, ?string $target, string $selfPermission, string $otherPermission) : ?Player{
+		if($target !== null){
+			$player = $sender->getServer()->getPlayerByPrefix($target);
+		}elseif($sender instanceof Player){
+			$player = $sender;
+		}else{
+			throw new InvalidCommandSyntaxException();
+		}
+
+		if($player === null){
+			$sender->sendMessage(KnownTranslationFactory::commands_generic_player_notFound()->prefix(TextFormat::RED));
+			return null;
+		}
+		if(
+			($player === $sender && $this->testPermission($sender, $selfPermission)) ||
+			($player !== $sender && $this->testPermission($sender, $otherPermission))
+		){
+			return $player;
+		}
+		return null;
+	}
+
 	protected function getInteger(CommandSender $sender, string $value, int $min = self::MIN_COORD, int $max = self::MAX_COORD) : int{
 		$i = (int) $value;
 

src/crafting/CraftingManager.php

@@ -45,6 +45,12 @@ class CraftingManager{
 	 */
 	protected $shapelessRecipes = [];
 
+	/**
+	 * @var CraftingRecipe[]
+	 * @phpstan-var array<int, CraftingRecipe>
+	 */
+	private array $craftingRecipeIndex = [];
+
 	/**
 	 * @var FurnaceRecipeManager[]
 	 * @phpstan-var array<int, FurnaceRecipeManager>
@@ -153,6 +159,18 @@ class CraftingManager{
 		return $this->shapedRecipes;
 	}
 
+	/**
+	 * @return CraftingRecipe[]
+	 * @phpstan-return array<int, CraftingRecipe>
+	 */
+	public function getCraftingRecipeIndex() : array{
+		return $this->craftingRecipeIndex;
+	}
+
+	public function getCraftingRecipeFromIndex(int $index) : ?CraftingRecipe{
+		return $this->craftingRecipeIndex[$index] ?? null;
+	}
+
 	public function getFurnaceRecipeManager(FurnaceType $furnaceType) : FurnaceRecipeManager{
 		return $this->furnaceRecipeManagers[$furnaceType->id()];
 	}
@@ -175,6 +193,7 @@ class CraftingManager{
 
 	public function registerShapedRecipe(ShapedRecipe $recipe) : void{
 		$this->shapedRecipes[self::hashOutputs($recipe->getResults())][] = $recipe;
+		$this->craftingRecipeIndex[] = $recipe;
 
 		foreach($this->recipeRegisteredCallbacks as $callback){
 			$callback();
@@ -183,6 +202,7 @@ class CraftingManager{
 
 	public function registerShapelessRecipe(ShapelessRecipe $recipe) : void{
 		$this->shapelessRecipes[self::hashOutputs($recipe->getResults())][] = $recipe;
+		$this->craftingRecipeIndex[] = $recipe;
 
 		foreach($this->recipeRegisteredCallbacks as $callback){
 			$callback();

src/crafting/CraftingManagerFromDataHelper.php

@@ -26,9 +26,8 @@ namespace pocketmine\crafting;
 use pocketmine\item\Item;
 use pocketmine\item\ItemFactory;
 use pocketmine\utils\AssumptionFailedError;
-use pocketmine\utils\Utils;
+use pocketmine\utils\Filesystem;
 use function array_map;
-use function file_get_contents;
 use function is_array;
 use function json_decode;
 
@@ -52,7 +51,7 @@ final class CraftingManagerFromDataHelper{
 	}
 
 	public static function make(string $filePath) : CraftingManager{
-		$recipes = json_decode(Utils::assumeNotFalse(file_get_contents($filePath), "Missing required resource file"), true);
+		$recipes = json_decode(Filesystem::fileGetContents($filePath), true);
 		if(!is_array($recipes)){
 			throw new AssumptionFailedError("recipes.json root should contain a map of recipe types");
 		}

src/crafting/ShapedRecipe.php

@@ -29,8 +29,8 @@ use pocketmine\utils\Utils;
 use function array_values;
 use function count;
 use function implode;
+use function str_contains;
 use function strlen;
-use function strpos;
 
 class ShapedRecipe implements CraftingRecipe{
 	/** @var string[] */
@@ -86,7 +86,7 @@ class ShapedRecipe implements CraftingRecipe{
 		$this->shape = $shape;
 
 		foreach($ingredients as $char => $i){
-			if(strpos(implode($this->shape), $char) === false){
+			if(!str_contains(implode($this->shape), $char)){
 				throw new \InvalidArgumentException("Symbol '$char' does not appear in the recipe shape");
 			}
 

src/crash/CrashDump.php

@@ -55,6 +55,7 @@ use function phpversion;
 use function preg_replace;
 use function sprintf;
 use function str_split;
+use function str_starts_with;
 use function strpos;
 use function substr;
 use function zend_version;
@@ -237,7 +238,7 @@ class CrashDump{
 
 	private function determinePluginFromFile(string $filePath, bool $crashFrame) : bool{
 		$frameCleanPath = Filesystem::cleanPath($filePath);
-		if(strpos($frameCleanPath, Filesystem::CLEAN_PATH_SRC_PREFIX) !== 0){
+		if(!str_starts_with($frameCleanPath, Filesystem::CLEAN_PATH_SRC_PREFIX)){
 			if($crashFrame){
 				$this->data->plugin_involvement = self::PLUGIN_INVOLVEMENT_DIRECT;
 			}else{
@@ -250,7 +251,7 @@ class CrashDump{
 				$file->setAccessible(true);
 				foreach($this->server->getPluginManager()->getPlugins() as $plugin){
 					$filePath = Filesystem::cleanPath($file->getValue($plugin));
-					if(strpos($frameCleanPath, $filePath) === 0){
+					if(str_starts_with($frameCleanPath, $filePath)){
 						$this->data->plugin = $plugin->getName();
 						break;
 					}

src/data/bedrock/BedrockDataFiles.php

@@ -0,0 +1,50 @@
+<?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\data\bedrock;
+
+use const pocketmine\BEDROCK_DATA_PATH;
+
+final class BedrockDataFiles{
+	private function __construct(){
+		//NOOP
+	}
+
+	public const BANNER_PATTERNS_JSON = BEDROCK_DATA_PATH . '/banner_patterns.json';
+	public const BIOME_DEFINITIONS_NBT = BEDROCK_DATA_PATH . '/biome_definitions.nbt';
+	public const BIOME_DEFINITIONS_FULL_NBT = BEDROCK_DATA_PATH . '/biome_definitions_full.nbt';
+	public const BIOME_ID_MAP_JSON = BEDROCK_DATA_PATH . '/biome_id_map.json';
+	public const BLOCK_ID_TO_ITEM_ID_MAP_JSON = BEDROCK_DATA_PATH . '/block_id_to_item_id_map.json';
+	public const BLOCK_STATE_META_MAP_JSON = BEDROCK_DATA_PATH . '/block_state_meta_map.json';
+	public const CANONICAL_BLOCK_STATES_NBT = BEDROCK_DATA_PATH . '/canonical_block_states.nbt';
+	public const COMMAND_ARG_TYPES_JSON = BEDROCK_DATA_PATH . '/command_arg_types.json';
+	public const CREATIVEITEMS_JSON = BEDROCK_DATA_PATH . '/creativeitems.json';
+	public const ENTITY_ID_MAP_JSON = BEDROCK_DATA_PATH . '/entity_id_map.json';
+	public const ENTITY_IDENTIFIERS_NBT = BEDROCK_DATA_PATH . '/entity_identifiers.nbt';
+	public const ITEM_TAGS_JSON = BEDROCK_DATA_PATH . '/item_tags.json';
+	public const LEVEL_SOUND_ID_MAP_JSON = BEDROCK_DATA_PATH . '/level_sound_id_map.json';
+	public const PARTICLE_ID_MAP_JSON = BEDROCK_DATA_PATH . '/particle_id_map.json';
+	public const R12_TO_CURRENT_BLOCK_MAP_BIN = BEDROCK_DATA_PATH . '/r12_to_current_block_map.bin';
+	public const R16_TO_CURRENT_ITEM_MAP_JSON = BEDROCK_DATA_PATH . '/r16_to_current_item_map.json';
+	public const REQUIRED_ITEM_LIST_JSON = BEDROCK_DATA_PATH . '/required_item_list.json';
+}

src/data/bedrock/EnchantmentIdMap.php

@@ -73,6 +73,8 @@ final class EnchantmentIdMap{
 		$this->register(EnchantmentIds::MENDING, VanillaEnchantments::MENDING());
 
 		$this->register(EnchantmentIds::VANISHING, VanillaEnchantments::VANISHING());
+
+		$this->register(EnchantmentIds::SWIFT_SNEAK, VanillaEnchantments::SWIFT_SNEAK());
 	}
 
 	public function register(int $mcpeId, Enchantment $enchantment) : void{

src/data/bedrock/EnchantmentIds.php

@@ -66,4 +66,5 @@ final class EnchantmentIds{
 	public const PIERCING = 34;
 	public const QUICK_CHARGE = 35;
 	public const SOUL_SPEED = 36;
+	public const SWIFT_SNEAK = 37;
 }

src/data/bedrock/LegacyBiomeIdToStringIdMap.php

@@ -24,12 +24,11 @@ declare(strict_types=1);
 namespace pocketmine\data\bedrock;
 
 use pocketmine\utils\SingletonTrait;
-use Symfony\Component\Filesystem\Path;
 
 final class LegacyBiomeIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
 
 	public function __construct(){
-		parent::__construct(Path::join(\pocketmine\BEDROCK_DATA_PATH, 'biome_id_map.json'));
+		parent::__construct(BedrockDataFiles::BIOME_ID_MAP_JSON);
 	}
 }

src/data/bedrock/LegacyBlockIdToStringIdMap.php

@@ -30,6 +30,6 @@ final class LegacyBlockIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
 
 	public function __construct(){
-		parent::__construct(Path::join(\pocketmine\BEDROCK_DATA_PATH, 'block_id_map.json'));
+		parent::__construct(Path::join(\pocketmine\BEDROCK_BLOCK_UPGRADE_SCHEMA_PATH, 'block_legacy_id_map.json'));
 	}
 }

src/data/bedrock/LegacyEntityIdToStringIdMap.php

@@ -24,12 +24,11 @@ declare(strict_types=1);
 namespace pocketmine\data\bedrock;
 
 use pocketmine\utils\SingletonTrait;
-use Symfony\Component\Filesystem\Path;
 
 final class LegacyEntityIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
 
 	public function __construct(){
-		parent::__construct(Path::join(\pocketmine\BEDROCK_DATA_PATH, 'entity_id_map.json'));
+		parent::__construct(BedrockDataFiles::ENTITY_ID_MAP_JSON);
 	}
 }

src/data/bedrock/LegacyItemIdToStringIdMap.php

@@ -30,6 +30,6 @@ final class LegacyItemIdToStringIdMap extends LegacyToStringBidirectionalIdMap{
 	use SingletonTrait;
 
 	public function __construct(){
-		parent::__construct(Path::join(\pocketmine\BEDROCK_DATA_PATH, 'item_id_map.json'));
+		parent::__construct(Path::join(\pocketmine\BEDROCK_ITEM_UPGRADE_SCHEMA_PATH, 'item_legacy_id_map.json'));
 	}
 }

src/data/bedrock/LegacyToStringBidirectionalIdMap.php

@@ -24,8 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\data\bedrock;
 
 use pocketmine\utils\AssumptionFailedError;
-use pocketmine\utils\Utils;
-use function file_get_contents;
+use pocketmine\utils\Filesystem;
 use function is_array;
 use function is_int;
 use function is_string;
@@ -45,7 +44,7 @@ abstract class LegacyToStringBidirectionalIdMap{
 	private array $stringToLegacy = [];
 
 	public function __construct(string $file){
-		$stringToLegacyId = json_decode(Utils::assumeNotFalse(file_get_contents($file), "Missing required resource file"), true);
+		$stringToLegacyId = json_decode(Filesystem::fileGetContents($file), true);
 		if(!is_array($stringToLegacyId)){
 			throw new AssumptionFailedError("Invalid format of ID map");
 		}

src/entity/Entity.php

@@ -44,6 +44,8 @@ use pocketmine\nbt\tag\DoubleTag;
 use pocketmine\nbt\tag\FloatTag;
 use pocketmine\nbt\tag\ListTag;
 use pocketmine\nbt\tag\StringTag;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\protocol\AddActorPacket;
 use pocketmine\network\mcpe\protocol\MoveActorAbsolutePacket;
 use pocketmine\network\mcpe\protocol\SetActorMotionPacket;
@@ -81,6 +83,15 @@ abstract class Entity{
 	public const MOTION_THRESHOLD = 0.00001;
 	protected const STEP_CLIP_MULTIPLIER = 0.4;
 
+	private const TAG_FIRE = "Fire"; //TAG_Short
+	private const TAG_ON_GROUND = "OnGround"; //TAG_Byte
+	private const TAG_FALL_DISTANCE = "FallDistance"; //TAG_Float
+	private const TAG_CUSTOM_NAME = "CustomName"; //TAG_String
+	private const TAG_CUSTOM_NAME_VISIBLE = "CustomNameVisible"; //TAG_Byte
+	public const TAG_POS = "Pos"; //TAG_List<TAG_Double>|TAG_List<TAG_Float>
+	public const TAG_MOTION = "Motion"; //TAG_List<TAG_Double>|TAG_List<TAG_Float>
+	public const TAG_ROTATION = "Rotation"; //TAG_List<TAG_Float>
+
 	private static int $entityCount = 1;
 
 	/**
@@ -233,9 +244,9 @@ abstract class Entity{
 		$this->recalculateBoundingBox();
 
 		if($nbt !== null){
-			$this->motion = EntityDataHelper::parseVec3($nbt, "Motion", true);
+			$this->motion = EntityDataHelper::parseVec3($nbt, self::TAG_MOTION, true);
 		}else{
-			$this->motion = new Vector3(0, 0, 0);
+			$this->motion = Vector3::zero();
 		}
 
 		$this->resetLastMovements();
@@ -466,17 +477,17 @@ abstract class Entity{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = CompoundTag::create()
-			->setTag("Pos", new ListTag([
+			->setTag(self::TAG_POS, new ListTag([
 				new DoubleTag($this->location->x),
 				new DoubleTag($this->location->y),
 				new DoubleTag($this->location->z)
 			]))
-			->setTag("Motion", new ListTag([
+			->setTag(self::TAG_MOTION, new ListTag([
 				new DoubleTag($this->motion->x),
 				new DoubleTag($this->motion->y),
 				new DoubleTag($this->motion->z)
 			]))
-			->setTag("Rotation", new ListTag([
+			->setTag(self::TAG_ROTATION, new ListTag([
 				new FloatTag($this->location->yaw),
 				new FloatTag($this->location->pitch)
 			]));
@@ -485,33 +496,33 @@ abstract class Entity{
 			EntityFactory::getInstance()->injectSaveId(get_class($this), $nbt);
 
 			if($this->getNameTag() !== ""){
-				$nbt->setString("CustomName", $this->getNameTag());
-				$nbt->setByte("CustomNameVisible", $this->isNameTagVisible() ? 1 : 0);
+				$nbt->setString(self::TAG_CUSTOM_NAME, $this->getNameTag());
+				$nbt->setByte(self::TAG_CUSTOM_NAME_VISIBLE, $this->isNameTagVisible() ? 1 : 0);
 			}
 		}
 
-		$nbt->setFloat("FallDistance", $this->fallDistance);
-		$nbt->setShort("Fire", $this->fireTicks);
-		$nbt->setByte("OnGround", $this->onGround ? 1 : 0);
+		$nbt->setFloat(self::TAG_FALL_DISTANCE, $this->fallDistance);
+		$nbt->setShort(self::TAG_FIRE, $this->fireTicks);
+		$nbt->setByte(self::TAG_ON_GROUND, $this->onGround ? 1 : 0);
 
 		return $nbt;
 	}
 
 	protected function initEntity(CompoundTag $nbt) : void{
-		$this->fireTicks = $nbt->getShort("Fire", 0);
+		$this->fireTicks = $nbt->getShort(self::TAG_FIRE, 0);
 
-		$this->onGround = $nbt->getByte("OnGround", 0) !== 0;
+		$this->onGround = $nbt->getByte(self::TAG_ON_GROUND, 0) !== 0;
 
-		$this->fallDistance = $nbt->getFloat("FallDistance", 0.0);
+		$this->fallDistance = $nbt->getFloat(self::TAG_FALL_DISTANCE, 0.0);
 
-		if(($customNameTag = $nbt->getTag("CustomName")) instanceof StringTag){
+		if(($customNameTag = $nbt->getTag(self::TAG_CUSTOM_NAME)) instanceof StringTag){
 			$this->setNameTag($customNameTag->getValue());
 
-			if(($customNameVisibleTag = $nbt->getTag("CustomNameVisible")) instanceof StringTag){
+			if(($customNameVisibleTag = $nbt->getTag(self::TAG_CUSTOM_NAME_VISIBLE)) instanceof StringTag){
 				//Older versions incorrectly saved this as a string (see 890f72dbf23a77f294169b79590770470041adc4)
 				$this->setNameTagVisible($customNameVisibleTag->getValue() !== "");
 			}else{
-				$this->setNameTagVisible($nbt->getByte("CustomNameVisible", 1) !== 0);
+				$this->setNameTagVisible($nbt->getByte(self::TAG_CUSTOM_NAME_VISIBLE, 1) !== 0);
 			}
 		}
 	}
@@ -776,7 +787,7 @@ abstract class Entity{
 				$this->spawnTo($player);
 			}
 		}else{
-			$this->server->broadcastPackets($this->hasSpawned, [MoveActorAbsolutePacket::create(
+			NetworkBroadcastUtils::broadcastPackets($this->hasSpawned, [MoveActorAbsolutePacket::create(
 				$this->id,
 				$this->getOffsetPosition($this->location),
 				$this->location->pitch,
@@ -791,7 +802,16 @@ abstract class Entity{
 	}
 
 	protected function broadcastMotion() : void{
-		$this->server->broadcastPackets($this->hasSpawned, [SetActorMotionPacket::create($this->id, $this->getMotion())]);
+		NetworkBroadcastUtils::broadcastPackets($this->hasSpawned, [SetActorMotionPacket::create($this->id, $this->getMotion())]);
+	}
+
+	public function getGravity() : float{
+		return $this->gravity;
+	}
+
+	public function setGravity(float $gravity) : void{
+		Utils::checkFloatNotInfOrNaN("gravity", $gravity);
+		$this->gravity = $gravity;
 	}
 
 	public function hasGravity() : bool{
@@ -1119,6 +1139,7 @@ abstract class Entity{
 		$this->blocksAround = null;
 
 		Timings::$entityMove->startTiming();
+		Timings::$entityMoveCollision->startTiming();
 
 		$wantedX = $dx;
 		$wantedY = $dy;
@@ -1203,6 +1224,7 @@ abstract class Entity{
 
 			$this->boundingBox = $moveBB;
 		}
+		Timings::$entityMoveCollision->stopTiming();
 
 		$this->location = new Location(
 			($this->boundingBox->minX + $this->boundingBox->maxX) / 2,
@@ -1519,7 +1541,7 @@ abstract class Entity{
 		$id = spl_object_id($player);
 		if(isset($this->hasSpawned[$id])){
 			if($send){
-				$player->getNetworkSession()->onEntityRemoved($this);
+				$player->getNetworkSession()->getEntityEventBroadcaster()->onEntityRemoved([$player->getNetworkSession()], $this);
 			}
 			unset($this->hasSpawned[$id]);
 		}
@@ -1530,9 +1552,11 @@ abstract class Entity{
 	 * player moves, viewers will once again be able to see the entity.
 	 */
 	public function despawnFromAll() : void{
-		foreach($this->hasSpawned as $player){
-			$this->despawnFrom($player);
-		}
+		NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->hasSpawned,
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onEntityRemoved($recipients, $this)
+		);
+		$this->hasSpawned = [];
 	}
 
 	/**
@@ -1606,9 +1630,7 @@ abstract class Entity{
 		$targets = $targets ?? $this->hasSpawned;
 		$data = $data ?? $this->getAllNetworkData();
 
-		foreach($targets as $p){
-			$p->getNetworkSession()->syncActorData($this, $data);
-		}
+		NetworkBroadcastUtils::broadcastEntityEvent($targets, fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->syncActorData($recipients, $this, $data));
 	}
 
 	/**
@@ -1662,7 +1684,7 @@ abstract class Entity{
 	 * @param Player[]|null $targets
 	 */
 	public function broadcastAnimation(Animation $animation, ?array $targets = null) : void{
-		$this->server->broadcastPackets($targets ?? $this->getViewers(), $animation->encode());
+		NetworkBroadcastUtils::broadcastPackets($targets ?? $this->getViewers(), $animation->encode());
 	}
 
 	/**
@@ -1671,7 +1693,7 @@ abstract class Entity{
 	 */
 	public function broadcastSound(Sound $sound, ?array $targets = null) : void{
 		if(!$this->silent){
-			$this->server->broadcastPackets($targets ?? $this->getViewers(), $sound->encode($this->location));
+			NetworkBroadcastUtils::broadcastPackets($targets ?? $this->getViewers(), $sound->encode($this->location));
 		}
 	}
 

src/entity/EntityDataHelper.php

@@ -57,19 +57,19 @@ final class EntityDataHelper{
 	 * @throws SavedDataLoadingException
 	 */
 	public static function parseLocation(CompoundTag $nbt, World $world) : Location{
-		$pos = self::parseVec3($nbt, "Pos", false);
+		$pos = self::parseVec3($nbt, Entity::TAG_POS, false);
 
-		$yawPitch = $nbt->getTag("Rotation");
+		$yawPitch = $nbt->getTag(Entity::TAG_ROTATION);
 		if(!($yawPitch instanceof ListTag) || $yawPitch->getTagType() !== NBT::TAG_Float){
-			throw new SavedDataLoadingException("'Rotation' should be a List<Float>");
+			throw new SavedDataLoadingException("'" . Entity::TAG_ROTATION . "' should be a List<Float>");
 		}
 		/** @var FloatTag[] $values */
 		$values = $yawPitch->getValue();
 		if(count($values) !== 2){
 			throw new SavedDataLoadingException("Expected exactly 2 entries for 'Rotation'");
 		}
-		self::validateFloat("Rotation", "yaw", $values[0]->getValue());
-		self::validateFloat("Rotation", "pitch", $values[1]->getValue());
+		self::validateFloat(Entity::TAG_ROTATION, "yaw", $values[0]->getValue());
+		self::validateFloat(Entity::TAG_ROTATION, "pitch", $values[1]->getValue());
 
 		return Location::fromObject($pos, $world, $values[0]->getValue(), $values[1]->getValue());
 	}
@@ -80,7 +80,7 @@ final class EntityDataHelper{
 	public static function parseVec3(CompoundTag $nbt, string $tagName, bool $optional) : Vector3{
 		$pos = $nbt->getTag($tagName);
 		if($pos === null && $optional){
-			return new Vector3(0, 0, 0);
+			return Vector3::zero();
 		}
 		if(!($pos instanceof ListTag) || ($pos->getTagType() !== NBT::TAG_Double && $pos->getTagType() !== NBT::TAG_Float)){
 			throw new SavedDataLoadingException("'$tagName' should be a List<Double> or List<Float>");

src/entity/EntityFactory.php

@@ -66,6 +66,9 @@ use function reset;
 final class EntityFactory{
 	use SingletonTrait;
 
+	public const TAG_IDENTIFIER = "identifier"; //TAG_String
+	public const TAG_LEGACY_ID = "id"; //TAG_Int
+
 	/**
 	 * @var \Closure[] save ID => creator function
 	 * @phpstan-var array<int|string, \Closure(World, CompoundTag) : Entity>
@@ -113,9 +116,9 @@ final class EntityFactory{
 		}, ['FallingSand', 'minecraft:falling_block'], LegacyIds::FALLING_BLOCK);
 
 		$this->register(ItemEntity::class, function(World $world, CompoundTag $nbt) : ItemEntity{
-			$itemTag = $nbt->getCompoundTag("Item");
+			$itemTag = $nbt->getCompoundTag(ItemEntity::TAG_ITEM);
 			if($itemTag === null){
-				throw new SavedDataLoadingException("Expected \"Item\" NBT tag not found");
+				throw new SavedDataLoadingException("Expected \"" . ItemEntity::TAG_ITEM . "\" NBT tag not found");
 			}
 
 			$item = Item::nbtDeserialize($itemTag);
@@ -126,14 +129,14 @@ final class EntityFactory{
 		}, ['Item', 'minecraft:item'], LegacyIds::ITEM);
 
 		$this->register(Painting::class, function(World $world, CompoundTag $nbt) : Painting{
-			$motive = PaintingMotive::getMotiveByName($nbt->getString("Motive"));
+			$motive = PaintingMotive::getMotiveByName($nbt->getString(Painting::TAG_MOTIVE));
 			if($motive === null){
 				throw new SavedDataLoadingException("Unknown painting motive");
 			}
-			$blockIn = new Vector3($nbt->getInt("TileX"), $nbt->getInt("TileY"), $nbt->getInt("TileZ"));
-			if(($directionTag = $nbt->getTag("Direction")) instanceof ByteTag){
+			$blockIn = new Vector3($nbt->getInt(Painting::TAG_TILE_X), $nbt->getInt(Painting::TAG_TILE_Y), $nbt->getInt(Painting::TAG_TILE_Z));
+			if(($directionTag = $nbt->getTag(Painting::TAG_DIRECTION_BE)) instanceof ByteTag){
 				$facing = Painting::DATA_TO_FACING[$directionTag->getValue()] ?? Facing::NORTH;
-			}elseif(($facingTag = $nbt->getTag("Facing")) instanceof ByteTag){
+			}elseif(($facingTag = $nbt->getTag(Painting::TAG_FACING_JE)) instanceof ByteTag){
 				$facing = Painting::DATA_TO_FACING[$facingTag->getValue()] ?? Facing::NORTH;
 			}else{
 				throw new SavedDataLoadingException("Missing facing info");
@@ -151,7 +154,7 @@ final class EntityFactory{
 		}, ['Snowball', 'minecraft:snowball'], LegacyIds::SNOWBALL);
 
 		$this->register(SplashPotion::class, function(World $world, CompoundTag $nbt) : SplashPotion{
-			$potionType = PotionTypeIdMap::getInstance()->fromId($nbt->getShort("PotionId", PotionTypeIds::WATER));
+			$potionType = PotionTypeIdMap::getInstance()->fromId($nbt->getShort(SplashPotion::TAG_POTION_ID, PotionTypeIds::WATER));
 			if($potionType === null){
 				throw new SavedDataLoadingException("No such potion type");
 			}
@@ -217,7 +220,7 @@ final class EntityFactory{
 	 */
 	public function createFromData(World $world, CompoundTag $nbt) : ?Entity{
 		try{
-			$saveId = $nbt->getTag("identifier") ?? $nbt->getTag("id");
+			$saveId = $nbt->getTag(self::TAG_IDENTIFIER) ?? $nbt->getTag(self::TAG_LEGACY_ID);
 			$func = null;
 			if($saveId instanceof StringTag){
 				$func = $this->creationFuncs[$saveId->getValue()] ?? null;
@@ -238,7 +241,7 @@ final class EntityFactory{
 
 	public function injectSaveId(string $class, CompoundTag $saveData) : void{
 		if(isset($this->saveNames[$class])){
-			$saveData->setTag("identifier", new StringTag($this->saveNames[$class]));
+			$saveData->setTag(self::TAG_IDENTIFIER, new StringTag($this->saveNames[$class]));
 		}else{
 			throw new \InvalidArgumentException("Entity $class is not registered");
 		}

src/entity/Human.php

@@ -47,9 +47,13 @@ use pocketmine\nbt\tag\ListTag;
 use pocketmine\nbt\tag\StringTag;
 use pocketmine\network\mcpe\convert\SkinAdapterSingleton;
 use pocketmine\network\mcpe\convert\TypeConverter;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\protocol\AddPlayerPacket;
 use pocketmine\network\mcpe\protocol\PlayerListPacket;
 use pocketmine\network\mcpe\protocol\PlayerSkinPacket;
+use pocketmine\network\mcpe\protocol\types\AbilitiesData;
+use pocketmine\network\mcpe\protocol\types\AbilitiesLayer;
 use pocketmine\network\mcpe\protocol\types\command\CommandPermissions;
 use pocketmine\network\mcpe\protocol\types\DeviceOS;
 use pocketmine\network\mcpe\protocol\types\entity\EntityIds;
@@ -60,7 +64,6 @@ use pocketmine\network\mcpe\protocol\types\GameMode;
 use pocketmine\network\mcpe\protocol\types\inventory\ItemStackWrapper;
 use pocketmine\network\mcpe\protocol\types\PlayerListEntry;
 use pocketmine\network\mcpe\protocol\types\PlayerPermissions;
-use pocketmine\network\mcpe\protocol\types\UpdateAbilitiesPacketLayer;
 use pocketmine\network\mcpe\protocol\UpdateAbilitiesPacket;
 use pocketmine\player\Player;
 use pocketmine\utils\Limits;
@@ -77,6 +80,26 @@ use function random_int;
 
 class Human extends Living implements ProjectileSource, InventoryHolder{
 
+	private const TAG_INVENTORY = "Inventory"; //TAG_List<TAG_Compound>
+	private const TAG_OFF_HAND_ITEM = "OffHandItem"; //TAG_Compound
+	private const TAG_ENDER_CHEST_INVENTORY = "EnderChestInventory"; //TAG_List<TAG_Compound>
+	private const TAG_SELECTED_INVENTORY_SLOT = "SelectedInventorySlot"; //TAG_Int
+	private const TAG_FOOD_LEVEL = "foodLevel"; //TAG_Int
+	private const TAG_FOOD_EXHAUSTION_LEVEL = "foodExhaustionLevel"; //TAG_Float
+	private const TAG_FOOD_SATURATION_LEVEL = "foodSaturationLevel"; //TAG_Float
+	private const TAG_FOOD_TICK_TIMER = "foodTickTimer"; //TAG_Int
+	private const TAG_XP_LEVEL = "XpLevel"; //TAG_Int
+	private const TAG_XP_PROGRESS = "XpP"; //TAG_Float
+	private const TAG_LIFETIME_XP_TOTAL = "XpTotal"; //TAG_Int
+	private const TAG_XP_SEED = "XpSeed"; //TAG_Int
+	private const TAG_NAME_TAG = "NameTag"; //TAG_String
+	private const TAG_SKIN = "Skin"; //TAG_Compound
+	private const TAG_SKIN_NAME = "Name"; //TAG_String
+	private const TAG_SKIN_DATA = "Data"; //TAG_ByteArray
+	private const TAG_SKIN_CAPE_DATA = "CapeData"; //TAG_ByteArray
+	private const TAG_SKIN_GEOMETRY_NAME = "GeometryName"; //TAG_String
+	private const TAG_SKIN_GEOMETRY_DATA = "GeometryData"; //TAG_ByteArray
+
 	public static function getNetworkTypeId() : string{ return EntityIds::PLAYER; }
 
 	/** @var PlayerInventory */
@@ -114,16 +137,16 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 	 * @throws SavedDataLoadingException
 	 */
 	public static function parseSkinNBT(CompoundTag $nbt) : Skin{
-		$skinTag = $nbt->getCompoundTag("Skin");
+		$skinTag = $nbt->getCompoundTag(self::TAG_SKIN);
 		if($skinTag === null){
 			throw new SavedDataLoadingException("Missing skin data");
 		}
 		return new Skin( //this throws if the skin is invalid
-			$skinTag->getString("Name"),
-			($skinDataTag = $skinTag->getTag("Data")) instanceof StringTag ? $skinDataTag->getValue() : $skinTag->getByteArray("Data"), //old data (this used to be saved as a StringTag in older versions of PM)
-			$skinTag->getByteArray("CapeData", ""),
-			$skinTag->getString("GeometryName", ""),
-			$skinTag->getByteArray("GeometryData", "")
+			$skinTag->getString(self::TAG_SKIN_NAME),
+			($skinDataTag = $skinTag->getTag(self::TAG_SKIN_DATA)) instanceof StringTag ? $skinDataTag->getValue() : $skinTag->getByteArray(self::TAG_SKIN_DATA), //old data (this used to be saved as a StringTag in older versions of PM)
+			$skinTag->getByteArray(self::TAG_SKIN_CAPE_DATA, ""),
+			$skinTag->getString(self::TAG_SKIN_GEOMETRY_NAME, ""),
+			$skinTag->getByteArray(self::TAG_SKIN_GEOMETRY_DATA, "")
 		);
 	}
 
@@ -153,7 +176,7 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 	 * @param Player[]|null $targets
 	 */
 	public function sendSkin(?array $targets = null) : void{
-		$this->server->broadcastPackets($targets ?? $this->hasSpawned, [
+		NetworkBroadcastUtils::broadcastPackets($targets ?? $this->hasSpawned, [
 			PlayerSkinPacket::create($this->getUniqueId(), "", "", SkinAdapterSingleton::get()->toSkinData($this->skin))
 		]);
 	}
@@ -168,9 +191,10 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 	}
 
 	public function emote(string $emoteId) : void{
-		foreach($this->getViewers() as $player){
-			$player->getNetworkSession()->onEmote($this, $emoteId);
-		}
+		NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onEmote($recipients, $this, $emoteId)
+		);
 	}
 
 	public function getHungerManager() : HungerManager{
@@ -221,7 +245,7 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 	 * For Human entities which are not players, sets their properties such as nametag, skin and UUID from NBT.
 	 */
 	protected function initHumanData(CompoundTag $nbt) : void{
-		if(($nameTagTag = $nbt->getTag("NameTag")) instanceof StringTag){
+		if(($nameTagTag = $nbt->getTag(self::TAG_NAME_TAG)) instanceof StringTag){
 			$this->setNameTag($nameTagTag->getValue());
 		}
 
@@ -249,11 +273,10 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 		$this->xpManager = new ExperienceManager($this);
 
 		$this->inventory = new PlayerInventory($this);
-		$syncHeldItem = function() : void{
-			foreach($this->getViewers() as $viewer){
-				$viewer->getNetworkSession()->onMobMainHandItemChange($this);
-			}
-		};
+		$syncHeldItem = fn() => NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onMobMainHandItemChange($recipients, $this)
+		);
 		$this->inventory->getListeners()->add(new CallbackInventoryListener(
 			function(Inventory $unused, int $slot, Item $unused2) use ($syncHeldItem) : void{
 				if($slot === $this->inventory->getHeldItemIndex()){
@@ -270,14 +293,14 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 		$this->enderInventory = new PlayerEnderInventory($this);
 		$this->initHumanData($nbt);
 
-		$inventoryTag = $nbt->getListTag("Inventory");
+		$inventoryTag = $nbt->getListTag(self::TAG_INVENTORY);
 		if($inventoryTag !== null){
 			$inventoryItems = [];
 			$armorInventoryItems = [];
 
 			/** @var CompoundTag $item */
 			foreach($inventoryTag as $i => $item){
-				$slot = $item->getByte("Slot");
+				$slot = $item->getByte(Item::TAG_SLOT);
 				if($slot >= 0 && $slot < 9){ //Hotbar
 					//Old hotbar saving stuff, ignore it
 				}elseif($slot >= 100 && $slot < 104){ //Armor
@@ -290,45 +313,43 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 			self::populateInventoryFromListTag($this->inventory, $inventoryItems);
 			self::populateInventoryFromListTag($this->armorInventory, $armorInventoryItems);
 		}
-		$offHand = $nbt->getCompoundTag("OffHandItem");
+		$offHand = $nbt->getCompoundTag(self::TAG_OFF_HAND_ITEM);
 		if($offHand !== null){
 			$this->offHandInventory->setItem(0, Item::nbtDeserialize($offHand));
 		}
-		$this->offHandInventory->getListeners()->add(CallbackInventoryListener::onAnyChange(function() : void{
-			foreach($this->getViewers() as $viewer){
-				$viewer->getNetworkSession()->onMobOffHandItemChange($this);
-			}
-		}));
+		$this->offHandInventory->getListeners()->add(CallbackInventoryListener::onAnyChange(fn() => NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onMobOffHandItemChange($recipients, $this)
+		)));
 
-		$enderChestInventoryTag = $nbt->getListTag("EnderChestInventory");
+		$enderChestInventoryTag = $nbt->getListTag(self::TAG_ENDER_CHEST_INVENTORY);
 		if($enderChestInventoryTag !== null){
 			$enderChestInventoryItems = [];
 
 			/** @var CompoundTag $item */
 			foreach($enderChestInventoryTag as $i => $item){
-				$enderChestInventoryItems[$item->getByte("Slot")] = Item::nbtDeserialize($item);
+				$enderChestInventoryItems[$item->getByte(Item::TAG_SLOT)] = Item::nbtDeserialize($item);
 			}
 			self::populateInventoryFromListTag($this->enderInventory, $enderChestInventoryItems);
 		}
 
-		$this->inventory->setHeldItemIndex($nbt->getInt("SelectedInventorySlot", 0));
-		$this->inventory->getHeldItemIndexChangeListeners()->add(function(int $oldIndex) : void{
-			foreach($this->getViewers() as $viewer){
-				$viewer->getNetworkSession()->onMobMainHandItemChange($this);
-			}
-		});
+		$this->inventory->setHeldItemIndex($nbt->getInt(self::TAG_SELECTED_INVENTORY_SLOT, 0));
+		$this->inventory->getHeldItemIndexChangeListeners()->add(fn() => NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onMobMainHandItemChange($recipients, $this)
+		));
 
-		$this->hungerManager->setFood((float) $nbt->getInt("foodLevel", (int) $this->hungerManager->getFood()));
-		$this->hungerManager->setExhaustion($nbt->getFloat("foodExhaustionLevel", $this->hungerManager->getExhaustion()));
-		$this->hungerManager->setSaturation($nbt->getFloat("foodSaturationLevel", $this->hungerManager->getSaturation()));
-		$this->hungerManager->setFoodTickTimer($nbt->getInt("foodTickTimer", $this->hungerManager->getFoodTickTimer()));
+		$this->hungerManager->setFood((float) $nbt->getInt(self::TAG_FOOD_LEVEL, (int) $this->hungerManager->getFood()));
+		$this->hungerManager->setExhaustion($nbt->getFloat(self::TAG_FOOD_EXHAUSTION_LEVEL, $this->hungerManager->getExhaustion()));
+		$this->hungerManager->setSaturation($nbt->getFloat(self::TAG_FOOD_SATURATION_LEVEL, $this->hungerManager->getSaturation()));
+		$this->hungerManager->setFoodTickTimer($nbt->getInt(self::TAG_FOOD_TICK_TIMER, $this->hungerManager->getFoodTickTimer()));
 
 		$this->xpManager->setXpAndProgressNoEvent(
-			$nbt->getInt("XpLevel", 0),
-			$nbt->getFloat("XpP", 0.0));
-		$this->xpManager->setLifetimeTotalXp($nbt->getInt("XpTotal", 0));
+			$nbt->getInt(self::TAG_XP_LEVEL, 0),
+			$nbt->getFloat(self::TAG_XP_PROGRESS, 0.0));
+		$this->xpManager->setLifetimeTotalXp($nbt->getInt(self::TAG_LIFETIME_XP_TOTAL, 0));
 
-		if(($xpSeedTag = $nbt->getTag("XpSeed")) instanceof IntTag){
+		if(($xpSeedTag = $nbt->getTag(self::TAG_XP_SEED)) instanceof IntTag){
 			$this->xpSeed = $xpSeedTag->getValue();
 		}else{
 			$this->xpSeed = random_int(Limits::INT32_MIN, Limits::INT32_MAX);
@@ -391,24 +412,24 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 			$this->inventory !== null ? array_values($this->inventory->getContents()) : [],
 			$this->armorInventory !== null ? array_values($this->armorInventory->getContents()) : [],
 			$this->offHandInventory !== null ? array_values($this->offHandInventory->getContents()) : [],
-		), function(Item $item) : bool{ return !$item->hasEnchantment(VanillaEnchantments::VANISHING()); });
+		), function(Item $item) : bool{ return !$item->hasEnchantment(VanillaEnchantments::VANISHING()) && !$item->keepOnDeath(); });
 	}
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
 
-		$nbt->setInt("foodLevel", (int) $this->hungerManager->getFood());
-		$nbt->setFloat("foodExhaustionLevel", $this->hungerManager->getExhaustion());
-		$nbt->setFloat("foodSaturationLevel", $this->hungerManager->getSaturation());
-		$nbt->setInt("foodTickTimer", $this->hungerManager->getFoodTickTimer());
+		$nbt->setInt(self::TAG_FOOD_LEVEL, (int) $this->hungerManager->getFood());
+		$nbt->setFloat(self::TAG_FOOD_EXHAUSTION_LEVEL, $this->hungerManager->getExhaustion());
+		$nbt->setFloat(self::TAG_FOOD_SATURATION_LEVEL, $this->hungerManager->getSaturation());
+		$nbt->setInt(self::TAG_FOOD_TICK_TIMER, $this->hungerManager->getFoodTickTimer());
 
-		$nbt->setInt("XpLevel", $this->xpManager->getXpLevel());
-		$nbt->setFloat("XpP", $this->xpManager->getXpProgress());
-		$nbt->setInt("XpTotal", $this->xpManager->getLifetimeTotalXp());
-		$nbt->setInt("XpSeed", $this->xpSeed);
+		$nbt->setInt(self::TAG_XP_LEVEL, $this->xpManager->getXpLevel());
+		$nbt->setFloat(self::TAG_XP_PROGRESS, $this->xpManager->getXpProgress());
+		$nbt->setInt(self::TAG_LIFETIME_XP_TOTAL, $this->xpManager->getLifetimeTotalXp());
+		$nbt->setInt(self::TAG_XP_SEED, $this->xpSeed);
 
 		$inventoryTag = new ListTag([], NBT::TAG_Compound);
-		$nbt->setTag("Inventory", $inventoryTag);
+		$nbt->setTag(self::TAG_INVENTORY, $inventoryTag);
 		if($this->inventory !== null){
 			//Normal inventory
 			$slotCount = $this->inventory->getSize() + $this->inventory->getHotbarSize();
@@ -427,11 +448,11 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 				}
 			}
 
-			$nbt->setInt("SelectedInventorySlot", $this->inventory->getHeldItemIndex());
+			$nbt->setInt(self::TAG_SELECTED_INVENTORY_SLOT, $this->inventory->getHeldItemIndex());
 		}
 		$offHandItem = $this->offHandInventory->getItem(0);
 		if(!$offHandItem->isNull()){
-			$nbt->setTag("OffHandItem", $offHandItem->nbtSerialize());
+			$nbt->setTag(self::TAG_OFF_HAND_ITEM, $offHandItem->nbtSerialize());
 		}
 
 		if($this->enderInventory !== null){
@@ -446,16 +467,16 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 				}
 			}
 
-			$nbt->setTag("EnderChestInventory", new ListTag($items, NBT::TAG_Compound));
+			$nbt->setTag(self::TAG_ENDER_CHEST_INVENTORY, new ListTag($items, NBT::TAG_Compound));
 		}
 
 		if($this->skin !== null){
-			$nbt->setTag("Skin", CompoundTag::create()
-				->setString("Name", $this->skin->getSkinId())
-				->setByteArray("Data", $this->skin->getSkinData())
-				->setByteArray("CapeData", $this->skin->getCapeData())
-				->setString("GeometryName", $this->skin->getGeometryName())
-				->setByteArray("GeometryData", $this->skin->getGeometryData())
+			$nbt->setTag(self::TAG_SKIN, CompoundTag::create()
+				->setString(self::TAG_SKIN_NAME, $this->skin->getSkinId())
+				->setByteArray(self::TAG_SKIN_DATA, $this->skin->getSkinData())
+				->setByteArray(self::TAG_SKIN_CAPE_DATA, $this->skin->getCapeData())
+				->setString(self::TAG_SKIN_GEOMETRY_NAME, $this->skin->getGeometryName())
+				->setByteArray(self::TAG_SKIN_GEOMETRY_DATA, $this->skin->getGeometryData())
 			);
 		}
 
@@ -469,11 +490,12 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 	}
 
 	protected function sendSpawnPacket(Player $player) : void{
+		$networkSession = $player->getNetworkSession();
 		if(!($this instanceof Player)){
-			$player->getNetworkSession()->sendDataPacket(PlayerListPacket::add([PlayerListEntry::createAdditionEntry($this->uuid, $this->id, $this->getName(), SkinAdapterSingleton::get()->toSkinData($this->skin))]));
+			$networkSession->sendDataPacket(PlayerListPacket::add([PlayerListEntry::createAdditionEntry($this->uuid, $this->id, $this->getName(), SkinAdapterSingleton::get()->toSkinData($this->skin))]));
 		}
 
-		$player->getNetworkSession()->sendDataPacket(AddPlayerPacket::create(
+		$networkSession->sendDataPacket(AddPlayerPacket::create(
 			$this->getUniqueId(),
 			$this->getName(),
 			$this->getId(),
@@ -487,14 +509,14 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 			GameMode::SURVIVAL,
 			$this->getAllNetworkData(),
 			new PropertySyncData([], []),
-			UpdateAbilitiesPacket::create(CommandPermissions::NORMAL, PlayerPermissions::VISITOR, $this->getId() /* TODO: this should be unique ID */, [
-				new UpdateAbilitiesPacketLayer(
-					UpdateAbilitiesPacketLayer::LAYER_BASE,
-					array_fill(0, UpdateAbilitiesPacketLayer::NUMBER_OF_ABILITIES, false),
+			UpdateAbilitiesPacket::create(new AbilitiesData(CommandPermissions::NORMAL, PlayerPermissions::VISITOR, $this->getId() /* TODO: this should be unique ID */, [
+				new AbilitiesLayer(
+					AbilitiesLayer::LAYER_BASE,
+					array_fill(0, AbilitiesLayer::NUMBER_OF_ABILITIES, false),
 					0.0,
 					0.0
 				)
-			]),
+			])),
 			[], //TODO: entity links
 			"", //device ID (we intentionally don't send this - secvuln)
 			DeviceOS::UNKNOWN //we intentionally don't send this (secvuln)
@@ -503,11 +525,12 @@ class Human extends Living implements ProjectileSource, InventoryHolder{
 		//TODO: Hack for MCPE 1.2.13: DATA_NAMETAG is useless in AddPlayerPacket, so it has to be sent separately
 		$this->sendData([$player], [EntityMetadataProperties::NAMETAG => new StringMetadataProperty($this->getNameTag())]);
 
-		$player->getNetworkSession()->onMobArmorChange($this);
-		$player->getNetworkSession()->onMobOffHandItemChange($this);
+		$entityEventBroadcaster = $networkSession->getEntityEventBroadcaster();
+		$entityEventBroadcaster->onMobArmorChange([$networkSession], $this);
+		$entityEventBroadcaster->onMobOffHandItemChange([$networkSession], $this);
 
 		if(!($this instanceof Player)){
-			$player->getNetworkSession()->sendDataPacket(PlayerListPacket::remove([PlayerListEntry::createRemovalEntry($this->uuid)]));
+			$networkSession->sendDataPacket(PlayerListPacket::remove([PlayerListEntry::createRemovalEntry($this->uuid)]));
 		}
 	}
 

src/entity/Living.php

@@ -50,6 +50,8 @@ use pocketmine\nbt\tag\CompoundTag;
 use pocketmine\nbt\tag\FloatTag;
 use pocketmine\nbt\tag\ListTag;
 use pocketmine\nbt\tag\ShortTag;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataCollection;
 use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataFlags;
 use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataProperties;
@@ -77,6 +79,16 @@ use const M_PI;
 abstract class Living extends Entity{
 	protected const DEFAULT_BREATH_TICKS = 300;
 
+	private const TAG_LEGACY_HEALTH = "HealF"; //TAG_Float
+	private const TAG_HEALTH = "Health"; //TAG_Float
+	private const TAG_BREATH_TICKS = "Air"; //TAG_Short
+	private const TAG_ACTIVE_EFFECTS = "ActiveEffects"; //TAG_List<TAG_Compound>
+	private const TAG_EFFECT_ID = "Id"; //TAG_Byte
+	private const TAG_EFFECT_DURATION = "Duration"; //TAG_Int
+	private const TAG_EFFECT_AMPLIFIER = "Amplifier"; //TAG_Byte
+	private const TAG_EFFECT_SHOW_PARTICLES = "ShowParticles"; //TAG_Byte
+	private const TAG_EFFECT_AMBIENT = "Ambient"; //TAG_Byte
+
 	protected $gravity = 0.08;
 	protected $drag = 0.02;
 
@@ -133,19 +145,16 @@ abstract class Living extends Entity{
 
 		$this->armorInventory = new ArmorInventory($this);
 		//TODO: load/save armor inventory contents
-		$this->armorInventory->getListeners()->add(CallbackInventoryListener::onAnyChange(
-			function(Inventory $unused) : void{
-				foreach($this->getViewers() as $viewer){
-					$viewer->getNetworkSession()->onMobArmorChange($this);
-				}
-			}
-		));
+		$this->armorInventory->getListeners()->add(CallbackInventoryListener::onAnyChange(fn() => NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onMobArmorChange($recipients, $this)
+		)));
 
 		$health = $this->getMaxHealth();
 
-		if(($healFTag = $nbt->getTag("HealF")) instanceof FloatTag){
+		if(($healFTag = $nbt->getTag(self::TAG_LEGACY_HEALTH)) instanceof FloatTag){
 			$health = $healFTag->getValue();
-		}elseif(($healthTag = $nbt->getTag("Health")) instanceof ShortTag){
+		}elseif(($healthTag = $nbt->getTag(self::TAG_HEALTH)) instanceof ShortTag){
 			$health = $healthTag->getValue(); //Older versions of PocketMine-MP incorrectly saved this as a short instead of a float
 		}elseif($healthTag instanceof FloatTag){
 			$health = $healthTag->getValue();
@@ -153,23 +162,23 @@ abstract class Living extends Entity{
 
 		$this->setHealth($health);
 
-		$this->setAirSupplyTicks($nbt->getShort("Air", self::DEFAULT_BREATH_TICKS));
+		$this->setAirSupplyTicks($nbt->getShort(self::TAG_BREATH_TICKS, self::DEFAULT_BREATH_TICKS));
 
 		/** @var CompoundTag[]|ListTag|null $activeEffectsTag */
-		$activeEffectsTag = $nbt->getListTag("ActiveEffects");
+		$activeEffectsTag = $nbt->getListTag(self::TAG_ACTIVE_EFFECTS);
 		if($activeEffectsTag !== null){
 			foreach($activeEffectsTag as $e){
-				$effect = EffectIdMap::getInstance()->fromId($e->getByte("Id"));
+				$effect = EffectIdMap::getInstance()->fromId($e->getByte(self::TAG_EFFECT_ID));
 				if($effect === null){
 					continue;
 				}
 
 				$this->effectManager->add(new EffectInstance(
 					$effect,
-					$e->getInt("Duration"),
-					Binary::unsignByte($e->getByte("Amplifier")),
-					$e->getByte("ShowParticles", 1) !== 0,
-					$e->getByte("Ambient", 0) !== 0
+					$e->getInt(self::TAG_EFFECT_DURATION),
+					Binary::unsignByte($e->getByte(self::TAG_EFFECT_AMPLIFIER)),
+					$e->getByte(self::TAG_EFFECT_SHOW_PARTICLES, 1) !== 0,
+					$e->getByte(self::TAG_EFFECT_AMBIENT, 0) !== 0
 				));
 			}
 		}
@@ -184,6 +193,13 @@ abstract class Living extends Entity{
 		$this->attributeMap->add($this->absorptionAttr = AttributeFactory::getInstance()->mustGet(Attribute::ABSORPTION));
 	}
 
+	/**
+	 * Returns the name used to describe this entity in chat and command outputs.
+	 */
+	public function getDisplayName() : string{
+		return $this->nameTag !== "" ? $this->nameTag : $this->getName();
+	}
+
 	public function setHealth(float $amount) : void{
 		$wasAlive = $this->isAlive();
 		parent::setHealth($amount);
@@ -272,22 +288,22 @@ abstract class Living extends Entity{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setFloat("Health", $this->getHealth());
+		$nbt->setFloat(self::TAG_HEALTH, $this->getHealth());
 
-		$nbt->setShort("Air", $this->getAirSupplyTicks());
+		$nbt->setShort(self::TAG_BREATH_TICKS, $this->getAirSupplyTicks());
 
 		if(count($this->effectManager->all()) > 0){
 			$effects = [];
 			foreach($this->effectManager->all() as $effect){
 				$effects[] = CompoundTag::create()
-					->setByte("Id", EffectIdMap::getInstance()->toId($effect->getType()))
-					->setByte("Amplifier", Binary::signByte($effect->getAmplifier()))
-					->setInt("Duration", $effect->getDuration())
-					->setByte("Ambient", $effect->isAmbient() ? 1 : 0)
-					->setByte("ShowParticles", $effect->isVisible() ? 1 : 0);
+					->setByte(self::TAG_EFFECT_ID, EffectIdMap::getInstance()->toId($effect->getType()))
+					->setByte(self::TAG_EFFECT_AMPLIFIER, Binary::signByte($effect->getAmplifier()))
+					->setInt(self::TAG_EFFECT_DURATION, $effect->getDuration())
+					->setByte(self::TAG_EFFECT_AMBIENT, $effect->isAmbient() ? 1 : 0)
+					->setByte(self::TAG_EFFECT_SHOW_PARTICLES, $effect->isVisible() ? 1 : 0);
 			}
 
-			$nbt->setTag("ActiveEffects", new ListTag($effects));
+			$nbt->setTag(self::TAG_ACTIVE_EFFECTS, new ListTag($effects));
 		}
 
 		return $nbt;
@@ -448,7 +464,9 @@ abstract class Living extends Entity{
 	 */
 	protected function applyPostDamageEffects(EntityDamageEvent $source) : void{
 		$this->setAbsorption(max(0, $this->getAbsorption() + $source->getModifier(EntityDamageEvent::MODIFIER_ABSORPTION)));
-		$this->damageArmor($source->getBaseDamage());
+		if($source->canBeReducedByArmor()){
+			$this->damageArmor($source->getBaseDamage());
+		}
 
 		if($source instanceof EntityDamageByEntityEvent && ($attacker = $source->getDamager()) !== null){
 			$damage = 0;
@@ -831,7 +849,8 @@ abstract class Living extends Entity{
 	protected function sendSpawnPacket(Player $player) : void{
 		parent::sendSpawnPacket($player);
 
-		$player->getNetworkSession()->onMobArmorChange($this);
+		$networkSession = $player->getNetworkSession();
+		$networkSession->getEntityEventBroadcaster()->onMobArmorChange([$networkSession], $this);
 	}
 
 	protected function syncNetworkData(EntityMetadataCollection $properties) : void{

src/entity/Villager.php

@@ -36,6 +36,8 @@ class Villager extends Living implements Ageable{
 	public const PROFESSION_BLACKSMITH = 3;
 	public const PROFESSION_BUTCHER = 4;
 
+	private const TAG_PROFESSION = "Profession"; //TAG_Int
+
 	public static function getNetworkTypeId() : string{ return EntityIds::VILLAGER; }
 
 	private bool $baby = false;
@@ -53,7 +55,7 @@ class Villager extends Living implements Ageable{
 		parent::initEntity($nbt);
 
 		/** @var int $profession */
-		$profession = $nbt->getInt("Profession", self::PROFESSION_FARMER);
+		$profession = $nbt->getInt(self::TAG_PROFESSION, self::PROFESSION_FARMER);
 
 		if($profession > 4 || $profession < 0){
 			$profession = self::PROFESSION_FARMER;
@@ -64,7 +66,7 @@ class Villager extends Living implements Ageable{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setInt("Profession", $this->getProfession());
+		$nbt->setInt(self::TAG_PROFESSION, $this->getProfession());
 
 		return $nbt;
 	}

src/entity/object/ExperienceOrb.php

@@ -40,6 +40,7 @@ class ExperienceOrb extends Entity{
 
 	public const TAG_VALUE_PC = "Value"; //short
 	public const TAG_VALUE_PE = "experience value"; //int (WTF?)
+	private const TAG_AGE = "Age"; //TAG_Short
 
 	/** Max distance an orb will follow a player across. */
 	public const MAX_TARGET_DISTANCE = 8.0;
@@ -109,13 +110,13 @@ class ExperienceOrb extends Entity{
 	protected function initEntity(CompoundTag $nbt) : void{
 		parent::initEntity($nbt);
 
-		$this->age = $nbt->getShort("Age", 0);
+		$this->age = $nbt->getShort(self::TAG_AGE, 0);
 	}
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
 
-		$nbt->setShort("Age", $this->age);
+		$nbt->setShort(self::TAG_AGE, $this->age);
 
 		$nbt->setShort(self::TAG_VALUE_PC, $this->getXpValue());
 		$nbt->setInt(self::TAG_VALUE_PE, $this->getXpValue());

src/entity/object/FallingBlock.php

@@ -44,6 +44,10 @@ use function abs;
 
 class FallingBlock extends Entity{
 
+	private const TAG_TILE_ID = "TileID"; //TAG_Int
+	private const TAG_TILE = "Tile"; //TAG_Byte
+	private const TAG_DATA = "Data"; //TAG_Byte
+
 	public static function getNetworkTypeId() : string{ return EntityIds::FALLING_BLOCK; }
 
 	protected $gravity = 0.04;
@@ -65,9 +69,9 @@ class FallingBlock extends Entity{
 		$blockId = 0;
 
 		//TODO: 1.8+ save format
-		if(($tileIdTag = $nbt->getTag("TileID")) instanceof IntTag){
+		if(($tileIdTag = $nbt->getTag(self::TAG_TILE_ID)) instanceof IntTag){
 			$blockId = $tileIdTag->getValue();
-		}elseif(($tileTag = $nbt->getTag("Tile")) instanceof ByteTag){
+		}elseif(($tileTag = $nbt->getTag(self::TAG_TILE)) instanceof ByteTag){
 			$blockId = $tileTag->getValue();
 		}
 
@@ -75,7 +79,7 @@ class FallingBlock extends Entity{
 			throw new SavedDataLoadingException("Missing block info from NBT");
 		}
 
-		$damage = $nbt->getByte("Data", 0);
+		$damage = $nbt->getByte(self::TAG_DATA, 0);
 
 		return $factory->get($blockId, $damage);
 	}
@@ -138,8 +142,8 @@ class FallingBlock extends Entity{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setInt("TileID", $this->block->getId());
-		$nbt->setByte("Data", $this->block->getMeta());
+		$nbt->setInt(self::TAG_TILE_ID, $this->block->getId());
+		$nbt->setByte(self::TAG_DATA, $this->block->getMeta());
 
 		return $nbt;
 	}

src/entity/object/ItemEntity.php

@@ -35,14 +35,24 @@ use pocketmine\item\Item;
 use pocketmine\math\Vector3;
 use pocketmine\nbt\tag\CompoundTag;
 use pocketmine\network\mcpe\convert\TypeConverter;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\protocol\AddItemActorPacket;
 use pocketmine\network\mcpe\protocol\types\entity\EntityIds;
 use pocketmine\network\mcpe\protocol\types\inventory\ItemStackWrapper;
 use pocketmine\player\Player;
+use pocketmine\timings\Timings;
 use function max;
 
 class ItemEntity extends Entity{
 
+	private const TAG_HEALTH = "Health"; //TAG_Short
+	private const TAG_AGE = "Age"; //TAG_Short
+	private const TAG_PICKUP_DELAY = "PickupDelay"; //TAG_Short
+	private const TAG_OWNER = "Owner"; //TAG_String
+	private const TAG_THROWER = "Thrower"; //TAG_String
+	public const TAG_ITEM = "Item"; //TAG_Compound
+
 	public static function getNetworkTypeId() : string{ return EntityIds::ITEM; }
 
 	public const MERGE_CHECK_PERIOD = 2; //0.1 seconds
@@ -81,17 +91,17 @@ class ItemEntity extends Entity{
 		parent::initEntity($nbt);
 
 		$this->setMaxHealth(5);
-		$this->setHealth($nbt->getShort("Health", (int) $this->getHealth()));
+		$this->setHealth($nbt->getShort(self::TAG_HEALTH, (int) $this->getHealth()));
 
-		$age = $nbt->getShort("Age", 0);
+		$age = $nbt->getShort(self::TAG_AGE, 0);
 		if($age === -32768){
 			$this->despawnDelay = self::NEVER_DESPAWN;
 		}else{
 			$this->despawnDelay = max(0, self::DEFAULT_DESPAWN_DELAY - $age);
 		}
-		$this->pickupDelay = $nbt->getShort("PickupDelay", $this->pickupDelay);
-		$this->owner = $nbt->getString("Owner", $this->owner);
-		$this->thrower = $nbt->getString("Thrower", $this->thrower);
+		$this->pickupDelay = $nbt->getShort(self::TAG_PICKUP_DELAY, $this->pickupDelay);
+		$this->owner = $nbt->getString(self::TAG_OWNER, $this->owner);
+		$this->thrower = $nbt->getString(self::TAG_THROWER, $this->thrower);
 	}
 
 	protected function onFirstUpdate(int $currentTick) : void{
@@ -104,13 +114,23 @@ class ItemEntity extends Entity{
 			return false;
 		}
 
-		$hasUpdate = parent::entityBaseTick($tickDiff);
+		Timings::$itemEntityBaseTick->startTiming();
+		try{
 
-		if(!$this->isFlaggedForDespawn() && $this->pickupDelay !== self::NEVER_DESPAWN){ //Infinite delay
-			$this->pickupDelay -= $tickDiff;
-			if($this->pickupDelay < 0){
-				$this->pickupDelay = 0;
+			$hasUpdate = parent::entityBaseTick($tickDiff);
+
+			if($this->isFlaggedForDespawn()){
+				return $hasUpdate;
 			}
+
+			if($this->pickupDelay !== self::NEVER_DESPAWN && $this->pickupDelay > 0){ //Infinite delay
+				$hasUpdate = true;
+				$this->pickupDelay -= $tickDiff;
+				if($this->pickupDelay < 0){
+					$this->pickupDelay = 0;
+				}
+			}
+
 			if($this->hasMovementUpdate() && $this->despawnDelay % self::MERGE_CHECK_PERIOD === 0){
 				$mergeable = [$this]; //in case the merge target ends up not being this
 				$mergeTarget = $this;
@@ -133,20 +153,24 @@ class ItemEntity extends Entity{
 				}
 			}
 
-			$this->despawnDelay -= $tickDiff;
-			if($this->despawnDelay <= 0){
-				$ev = new ItemDespawnEvent($this);
-				$ev->call();
-				if($ev->isCancelled()){
-					$this->despawnDelay = self::DEFAULT_DESPAWN_DELAY;
-				}else{
-					$this->flagForDespawn();
-					$hasUpdate = true;
+			if(!$this->isFlaggedForDespawn() && $this->despawnDelay !== self::NEVER_DESPAWN){
+				$hasUpdate = true;
+				$this->despawnDelay -= $tickDiff;
+				if($this->despawnDelay <= 0){
+					$ev = new ItemDespawnEvent($this);
+					$ev->call();
+					if($ev->isCancelled()){
+						$this->despawnDelay = self::DEFAULT_DESPAWN_DELAY;
+					}else{
+						$this->flagForDespawn();
+					}
 				}
 			}
-		}
 
-		return $hasUpdate;
+			return $hasUpdate;
+		}finally{
+			Timings::$itemEntityBaseTick->stopTiming();
+		}
 	}
 
 	/**
@@ -195,20 +219,20 @@ class ItemEntity extends Entity{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setTag("Item", $this->item->nbtSerialize());
-		$nbt->setShort("Health", (int) $this->getHealth());
+		$nbt->setTag(self::TAG_ITEM, $this->item->nbtSerialize());
+		$nbt->setShort(self::TAG_HEALTH, (int) $this->getHealth());
 		if($this->despawnDelay === self::NEVER_DESPAWN){
 			$age = -32768;
 		}else{
 			$age = self::DEFAULT_DESPAWN_DELAY - $this->despawnDelay;
 		}
-		$nbt->setShort("Age", $age);
-		$nbt->setShort("PickupDelay", $this->pickupDelay);
+		$nbt->setShort(self::TAG_AGE, $age);
+		$nbt->setShort(self::TAG_PICKUP_DELAY, $this->pickupDelay);
 		if($this->owner !== null){
-			$nbt->setString("Owner", $this->owner);
+			$nbt->setString(self::TAG_OWNER, $this->owner);
 		}
 		if($this->thrower !== null){
-			$nbt->setString("Thrower", $this->thrower);
+			$nbt->setString(self::TAG_THROWER, $this->thrower);
 		}
 
 		return $nbt;
@@ -313,9 +337,10 @@ class ItemEntity extends Entity{
 			return;
 		}
 
-		foreach($this->getViewers() as $viewer){
-			$viewer->getNetworkSession()->onPlayerPickUpItem($player, $this);
-		}
+		NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onPickUpItem($recipients, $player, $this)
+		);
 
 		$inventory = $ev->getInventory();
 		if($inventory !== null){

src/entity/object/Painting.php

@@ -41,6 +41,13 @@ use pocketmine\world\World;
 use function ceil;
 
 class Painting extends Entity{
+	public const TAG_TILE_X = "TileX"; //TAG_Int
+	public const TAG_TILE_Y = "TileY"; //TAG_Int
+	public const TAG_TILE_Z = "TileZ"; //TAG_Int
+	public const TAG_FACING_JE = "Facing"; //TAG_Byte
+	public const TAG_DIRECTION_BE = "Direction"; //TAG_Byte
+	public const TAG_MOTIVE = "Motive"; //TAG_String
+
 	public static function getNetworkTypeId() : string{ return EntityIds::PAINTING; }
 
 	public const DATA_TO_FACING = [
@@ -88,14 +95,14 @@ class Painting extends Entity{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setInt("TileX", (int) $this->blockIn->x);
-		$nbt->setInt("TileY", (int) $this->blockIn->y);
-		$nbt->setInt("TileZ", (int) $this->blockIn->z);
+		$nbt->setInt(self::TAG_TILE_X, (int) $this->blockIn->x);
+		$nbt->setInt(self::TAG_TILE_Y, (int) $this->blockIn->y);
+		$nbt->setInt(self::TAG_TILE_Z, (int) $this->blockIn->z);
 
-		$nbt->setByte("Facing", self::FACING_TO_DATA[$this->facing]);
-		$nbt->setByte("Direction", self::FACING_TO_DATA[$this->facing]); //Save both for full compatibility
+		$nbt->setByte(self::TAG_FACING_JE, self::FACING_TO_DATA[$this->facing]);
+		$nbt->setByte(self::TAG_DIRECTION_BE, self::FACING_TO_DATA[$this->facing]); //Save both for full compatibility
 
-		$nbt->setString("Motive", $this->motive->getName());
+		$nbt->setString(self::TAG_MOTIVE, $this->motive->getName());
 
 		return $nbt;
 	}

src/entity/object/PrimedTNT.php

@@ -39,6 +39,8 @@ use pocketmine\world\Position;
 
 class PrimedTNT extends Entity implements Explosive{
 
+	private const TAG_FUSE = "Fuse"; //TAG_Short
+
 	public static function getNetworkTypeId() : string{ return EntityIds::TNT; }
 
 	protected $gravity = 0.04;
@@ -81,7 +83,7 @@ class PrimedTNT extends Entity implements Explosive{
 	protected function initEntity(CompoundTag $nbt) : void{
 		parent::initEntity($nbt);
 
-		$this->fuse = $nbt->getShort("Fuse", 80);
+		$this->fuse = $nbt->getShort(self::TAG_FUSE, 80);
 	}
 
 	public function canCollideWith(Entity $entity) : bool{
@@ -90,7 +92,7 @@ class PrimedTNT extends Entity implements Explosive{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setShort("Fuse", $this->fuse);
+		$nbt->setShort(self::TAG_FUSE, $this->fuse);
 
 		return $nbt;
 	}

src/entity/projectile/Arrow.php

@@ -33,6 +33,8 @@ use pocketmine\event\entity\ProjectileHitEvent;
 use pocketmine\item\VanillaItems;
 use pocketmine\math\RayTraceResult;
 use pocketmine\nbt\tag\CompoundTag;
+use pocketmine\network\mcpe\EntityEventBroadcaster;
+use pocketmine\network\mcpe\NetworkBroadcastUtils;
 use pocketmine\network\mcpe\protocol\types\entity\EntityIds;
 use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataCollection;
 use pocketmine\network\mcpe\protocol\types\entity\EntityMetadataFlags;
@@ -52,6 +54,7 @@ class Arrow extends Projectile{
 
 	private const TAG_PICKUP = "pickup"; //TAG_Byte
 	public const TAG_CRIT = "crit"; //TAG_Byte
+	private const TAG_LIFE = "life"; //TAG_Short
 
 	protected $gravity = 0.05;
 	protected $drag = 0.01;
@@ -83,14 +86,14 @@ class Arrow extends Projectile{
 
 		$this->pickupMode = $nbt->getByte(self::TAG_PICKUP, self::PICKUP_ANY);
 		$this->critical = $nbt->getByte(self::TAG_CRIT, 0) === 1;
-		$this->collideTicks = $nbt->getShort("life", $this->collideTicks);
+		$this->collideTicks = $nbt->getShort(self::TAG_LIFE, $this->collideTicks);
 	}
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
 		$nbt->setByte(self::TAG_PICKUP, $this->pickupMode);
 		$nbt->setByte(self::TAG_CRIT, $this->critical ? 1 : 0);
-		$nbt->setShort("life", $this->collideTicks);
+		$nbt->setShort(self::TAG_LIFE, $this->collideTicks);
 		return $nbt;
 	}
 
@@ -195,9 +198,10 @@ class Arrow extends Projectile{
 			return;
 		}
 
-		foreach($this->getViewers() as $viewer){
-			$viewer->getNetworkSession()->onPlayerPickUpItem($player, $this);
-		}
+		NetworkBroadcastUtils::broadcastEntityEvent(
+			$this->getViewers(),
+			fn(EntityEventBroadcaster $broadcaster, array $recipients) => $broadcaster->onPickUpItem($recipients, $player, $this)
+		);
 
 		$ev->getInventory()?->addItem($ev->getItem());
 		$this->flagForDespawn();

src/entity/projectile/Projectile.php

@@ -50,6 +50,12 @@ use const M_PI;
 use const PHP_INT_MAX;
 
 abstract class Projectile extends Entity{
+	private const TAG_DAMAGE = "damage"; //TAG_Double
+	private const TAG_TILE_X = "tileX"; //TAG_Int
+	private const TAG_TILE_Y = "tileY"; //TAG_Int
+	private const TAG_TILE_Z = "tileZ"; //TAG_Int
+	private const TAG_BLOCK_ID = "blockId"; //TAG_Int
+	private const TAG_BLOCK_DATA = "blockData"; //TAG_Byte
 
 	/** @var float */
 	protected $damage = 0.0;
@@ -75,22 +81,22 @@ abstract class Projectile extends Entity{
 
 		$this->setMaxHealth(1);
 		$this->setHealth(1);
-		$this->damage = $nbt->getDouble("damage", $this->damage);
+		$this->damage = $nbt->getDouble(self::TAG_DAMAGE, $this->damage);
 
 		(function() use ($nbt) : void{
-			if(($tileXTag = $nbt->getTag("tileX")) instanceof IntTag && ($tileYTag = $nbt->getTag("tileY")) instanceof IntTag && ($tileZTag = $nbt->getTag("tileZ")) instanceof IntTag){
+			if(($tileXTag = $nbt->getTag(self::TAG_TILE_X)) instanceof IntTag && ($tileYTag = $nbt->getTag(self::TAG_TILE_Y)) instanceof IntTag && ($tileZTag = $nbt->getTag(self::TAG_TILE_Z)) instanceof IntTag){
 				$blockPos = new Vector3($tileXTag->getValue(), $tileYTag->getValue(), $tileZTag->getValue());
 			}else{
 				return;
 			}
 
-			if(($blockIdTag = $nbt->getTag("blockId")) instanceof IntTag){
+			if(($blockIdTag = $nbt->getTag(self::TAG_BLOCK_ID)) instanceof IntTag){
 				$blockId = $blockIdTag->getValue();
 			}else{
 				return;
 			}
 
-			if(($blockDataTag = $nbt->getTag("blockData")) instanceof ByteTag){
+			if(($blockDataTag = $nbt->getTag(self::TAG_BLOCK_DATA)) instanceof ByteTag){
 				$blockData = $blockDataTag->getValue();
 			}else{
 				return;
@@ -134,17 +140,17 @@ abstract class Projectile extends Entity{
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
 
-		$nbt->setDouble("damage", $this->damage);
+		$nbt->setDouble(self::TAG_DAMAGE, $this->damage);
 
 		if($this->blockHit !== null){
 			$pos = $this->blockHit->getPosition();
-			$nbt->setInt("tileX", $pos->x);
-			$nbt->setInt("tileY", $pos->y);
-			$nbt->setInt("tileZ", $pos->z);
+			$nbt->setInt(self::TAG_TILE_X, $pos->x);
+			$nbt->setInt(self::TAG_TILE_Y, $pos->y);
+			$nbt->setInt(self::TAG_TILE_Z, $pos->z);
 
 			//we intentionally use different ones to PC because we don't have stringy IDs
-			$nbt->setInt("blockId", $this->blockHit->getId());
-			$nbt->setByte("blockData", $this->blockHit->getMeta());
+			$nbt->setInt(self::TAG_BLOCK_ID, $this->blockHit->getId());
+			$nbt->setByte(self::TAG_BLOCK_DATA, $this->blockHit->getMeta());
 		}
 
 		return $nbt;
@@ -169,7 +175,8 @@ abstract class Projectile extends Entity{
 	protected function move(float $dx, float $dy, float $dz) : void{
 		$this->blocksAround = null;
 
-		Timings::$entityMove->startTiming();
+		Timings::$projectileMove->startTiming();
+		Timings::$projectileMoveRayTrace->startTiming();
 
 		$start = $this->location->asVector3();
 		$end = $start->add($dx, $dy, $dz);
@@ -215,6 +222,8 @@ abstract class Projectile extends Entity{
 			}
 		}
 
+		Timings::$projectileMoveRayTrace->stopTiming();
+
 		$this->location = Location::fromObject(
 			$end,
 			$this->location->world,
@@ -246,7 +255,7 @@ abstract class Projectile extends Entity{
 			}
 
 			$this->isCollided = $this->onGround = true;
-			$this->motion = new Vector3(0, 0, 0);
+			$this->motion = Vector3::zero();
 		}else{
 			$this->isCollided = $this->onGround = false;
 			$this->blockHit = null;
@@ -262,7 +271,7 @@ abstract class Projectile extends Entity{
 		$this->getWorld()->onEntityMoved($this);
 		$this->checkBlockIntersections();
 
-		Timings::$entityMove->stopTiming();
+		Timings::$projectileMove->stopTiming();
 	}
 
 	/**

src/entity/projectile/SplashPotion.php

@@ -50,6 +50,8 @@ use function sqrt;
 
 class SplashPotion extends Throwable{
 
+	public const TAG_POTION_ID = "PotionId"; //TAG_Short
+
 	public static function getNetworkTypeId() : string{ return EntityIds::SPLASH_POTION; }
 
 	protected $gravity = 0.05;
@@ -66,7 +68,7 @@ class SplashPotion extends Throwable{
 
 	public function saveNBT() : CompoundTag{
 		$nbt = parent::saveNBT();
-		$nbt->setShort("PotionId", PotionTypeIdMap::getInstance()->toId($this->getPotionType()));
+		$nbt->setShort(self::TAG_POTION_ID, PotionTypeIdMap::getInstance()->toId($this->getPotionType()));
 
 		return $nbt;
 	}

src/event/player/PlayerDeathEvent.php

@@ -98,17 +98,15 @@ class PlayerDeathEvent extends EntityDeathEvent{
 					if($e instanceof Player){
 						return KnownTranslationFactory::death_attack_player($name, $e->getDisplayName());
 					}elseif($e instanceof Living){
-						return KnownTranslationFactory::death_attack_mob($name, $e->getNameTag() !== "" ? $e->getNameTag() : $e->getName());
+						return KnownTranslationFactory::death_attack_mob($name, $e->getDisplayName());
 					}
 				}
 				break;
 			case EntityDamageEvent::CAUSE_PROJECTILE:
 				if($deathCause instanceof EntityDamageByEntityEvent){
 					$e = $deathCause->getDamager();
-					if($e instanceof Player){
+					if($e instanceof Living){
 						return KnownTranslationFactory::death_attack_arrow($name, $e->getDisplayName());
-					}elseif($e instanceof Living){
-						return KnownTranslationFactory::death_attack_arrow($name, $e->getNameTag() !== "" ? $e->getNameTag() : $e->getName());
 					}
 				}
 				break;
@@ -149,10 +147,8 @@ class PlayerDeathEvent extends EntityDeathEvent{
 			case EntityDamageEvent::CAUSE_ENTITY_EXPLOSION:
 				if($deathCause instanceof EntityDamageByEntityEvent){
 					$e = $deathCause->getDamager();
-					if($e instanceof Player){
+					if($e instanceof Living){
 						return KnownTranslationFactory::death_attack_explosion_player($name, $e->getDisplayName());
-					}elseif($e instanceof Living){
-						return KnownTranslationFactory::death_attack_explosion_player($name, $e->getNameTag() !== "" ? $e->getNameTag() : $e->getName());
 					}
 				}
 				return KnownTranslationFactory::death_attack_explosion($name);

src/event/player/PlayerInteractEvent.php

@@ -59,7 +59,7 @@ class PlayerInteractEvent extends PlayerEvent implements Cancellable{
 		$this->player = $player;
 		$this->item = $item;
 		$this->blockTouched = $block;
-		$this->touchVector = $touchVector ?? new Vector3(0, 0, 0);
+		$this->touchVector = $touchVector ?? Vector3::zero();
 		$this->blockFace = $face;
 		$this->action = $action;
 	}

src/event/player/PlayerPreLoginEvent.php

@@ -69,8 +69,8 @@ class PlayerPreLoginEvent extends Event implements Cancellable{
 
 	/**
 	 * Returns an object containing self-proclaimed information about the connecting player.
-	 * WARNING: THE PLAYER IS NOT VERIFIED DURING THIS EVENT. At this point, it's unknown if the player is real or a
-	 * hacker.
+	 * WARNING: THE PLAYER IS NOT VERIFIED DURING THIS EVENT. At this point, this could be a hacker posing as another
+	 * player.
 	 */
 	public function getPlayerInfo() : PlayerInfo{
 		return $this->playerInfo;
@@ -109,7 +109,7 @@ class PlayerPreLoginEvent extends Event implements Cancellable{
 	}
 
 	/**
-	 * Sets a reason to disallow the player to continue continue authenticating, with a message.
+	 * Sets a reason to disallow the player to continue authenticating, with a message.
 	 * This can also be used to change kick messages for already-set flags.
 	 */
 	public function setKickReason(int $flag, string $message) : void{

src/event/server/DataPacketDecodeEvent.php

@@ -0,0 +1,54 @@
+<?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\event\server;
+
+use pocketmine\event\Cancellable;
+use pocketmine\event\CancellableTrait;
+use pocketmine\network\mcpe\NetworkSession;
+
+/**
+ * Called before a packet is decoded and handled by the network session.
+ * Cancelling this event will drop the packet without decoding it, minimizing wasted CPU time.
+ */
+class DataPacketDecodeEvent extends ServerEvent implements Cancellable{
+	use CancellableTrait;
+
+	public function __construct(
+		private NetworkSession $origin,
+		private int $packetId,
+		private string $packetBuffer
+	){}
+
+	public function getOrigin() : NetworkSession{
+		return $this->origin;
+	}
+
+	public function getPacketId() : int{
+		return $this->packetId;
+	}
+
+	public function getPacketBuffer() : string{
+		return $this->packetBuffer;
+	}
+}

src/event/world/WorldParticleEvent.php

@@ -0,0 +1,73 @@
+<?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\event\world;
+
+use pocketmine\event\Cancellable;
+use pocketmine\event\CancellableTrait;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\particle\Particle;
+use pocketmine\world\World;
+
+class WorldParticleEvent extends WorldEvent implements Cancellable{
+	use CancellableTrait;
+
+	/**
+	 * @param Player[] $recipients
+	 */
+	public function __construct(
+		World $world,
+		private Particle $particle,
+		private Vector3 $position,
+		private array $recipients
+	){
+		parent::__construct($world);
+	}
+
+	public function getParticle() : Particle{
+		return $this->particle;
+	}
+
+	public function setParticle(Particle $particle) : void{
+		$this->particle = $particle;
+	}
+
+	public function getPosition() : Vector3{
+		return $this->position;
+	}
+
+	/**
+	 * @return Player[]
+	 */
+	public function getRecipients() : array{
+		return $this->recipients;
+	}
+
+	/**
+	 * @param Player[] $recipients
+	 */
+	public function setRecipients(array $recipients) : void{
+		$this->recipients = $recipients;
+	}
+}

src/event/world/WorldSoundEvent.php

@@ -0,0 +1,77 @@
+<?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\event\world;
+
+use pocketmine\event\Cancellable;
+use pocketmine\event\CancellableTrait;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\sound\Sound;
+use pocketmine\world\World;
+
+/**
+ * Called when a sound is played in a world
+ * @see World::addSound()
+ */
+class WorldSoundEvent extends WorldEvent implements Cancellable{
+	use CancellableTrait;
+
+	/**
+	 * @param Player[] $recipients
+	 */
+	public function __construct(
+		World $world,
+		private Sound $sound,
+		private Vector3 $position,
+		private array $recipients
+	){
+		parent::__construct($world);
+	}
+
+	public function getSound() : Sound{
+		return $this->sound;
+	}
+
+	public function setSound(Sound $sound) : void{
+		$this->sound = $sound;
+	}
+
+	public function getPosition() : Vector3{
+		return $this->position;
+	}
+
+	/**
+	 * @return Player[]
+	 */
+	public function getRecipients() : array{
+		return $this->recipients;
+	}
+
+	/**
+	 * @param Player[] $recipients
+	 */
+	public function setRecipients(array $recipients) : void{
+		$this->recipients = $recipients;
+	}
+}

src/inventory/BaseInventory.php

@@ -348,7 +348,7 @@ abstract class BaseInventory implements Inventory{
 			if($invManager === null){
 				continue;
 			}
-			$invManager->syncSlot($this, $index);
+			$invManager->onSlotChange($this, $index);
 		}
 	}
 

src/inventory/CreativeInventory.php

@@ -25,9 +25,9 @@ namespace pocketmine\inventory;
 
 use pocketmine\item\Durable;
 use pocketmine\item\Item;
+use pocketmine\utils\Filesystem;
 use pocketmine\utils\SingletonTrait;
 use Symfony\Component\Filesystem\Path;
-use function file_get_contents;
 use function json_decode;
 
 final class CreativeInventory{
@@ -37,7 +37,7 @@ final class CreativeInventory{
 	private array $creative = [];
 
 	private function __construct(){
-		$creativeItems = json_decode(file_get_contents(Path::join(\pocketmine\BEDROCK_DATA_PATH, "creativeitems.json")), true);
+		$creativeItems = json_decode(Filesystem::fileGetContents(Path::join(\pocketmine\RESOURCE_PATH, "legacy_creativeitems.json")), true);
 
 		foreach($creativeItems as $data){
 			$item = Item::jsonDeserialize($data);

src/inventory/transaction/CraftingTransaction.php

@@ -60,9 +60,11 @@ class CraftingTransaction extends InventoryTransaction{
 
 	private CraftingManager $craftingManager;
 
-	public function __construct(Player $source, CraftingManager $craftingManager, array $actions = []){
+	public function __construct(Player $source, CraftingManager $craftingManager, array $actions = [], ?CraftingRecipe $recipe = null, ?int $repetitions = null){
 		parent::__construct($source, $actions);
 		$this->craftingManager = $craftingManager;
+		$this->recipe = $recipe;
+		$this->repetitions = $repetitions;
 	}
 
 	/**
@@ -123,6 +125,18 @@ class CraftingTransaction extends InventoryTransaction{
 		return $iterations;
 	}
 
+	private function validateRecipe(CraftingRecipe $recipe, ?int $expectedRepetitions) : int{
+		//compute number of times recipe was crafted
+		$repetitions = $this->matchRecipeItems($this->outputs, $recipe->getResultsFor($this->source->getCraftingGrid()), false);
+		if($expectedRepetitions !== null && $repetitions !== $expectedRepetitions){
+			throw new TransactionValidationException("Expected $expectedRepetitions repetitions, got $repetitions");
+		}
+		//assert that $repetitions x recipe ingredients should be consumed
+		$this->matchRecipeItems($this->inputs, $recipe->getIngredientList(), true, $repetitions);
+
+		return $repetitions;
+	}
+
 	public function validate() : void{
 		$this->squashDuplicateSlotChanges();
 		if(count($this->actions) < 1){
@@ -131,25 +145,24 @@ class CraftingTransaction extends InventoryTransaction{
 
 		$this->matchItems($this->outputs, $this->inputs);
 
-		$failed = 0;
-		foreach($this->craftingManager->matchRecipeByOutputs($this->outputs) as $recipe){
-			try{
-				//compute number of times recipe was crafted
-				$this->repetitions = $this->matchRecipeItems($this->outputs, $recipe->getResultsFor($this->source->getCraftingGrid()), false);
-				//assert that $repetitions x recipe ingredients should be consumed
-				$this->matchRecipeItems($this->inputs, $recipe->getIngredientList(), true, $this->repetitions);
-
-				//Success!
-				$this->recipe = $recipe;
-				break;
-			}catch(TransactionValidationException $e){
-				//failed
-				++$failed;
-			}
-		}
-
 		if($this->recipe === null){
-			throw new TransactionValidationException("Unable to match a recipe to transaction (tried to match against $failed recipes)");
+			$failed = 0;
+			foreach($this->craftingManager->matchRecipeByOutputs($this->outputs) as $recipe){
+				try{
+					$this->repetitions = $this->validateRecipe($recipe, $this->repetitions);
+					$this->recipe = $recipe;
+					break;
+				}catch(TransactionValidationException $e){
+					//failed
+					++$failed;
+				}
+			}
+
+			if($this->recipe === null){
+				throw new TransactionValidationException("Unable to match a recipe to transaction (tried to match against $failed recipes)");
+			}
+		}else{
+			$this->repetitions = $this->validateRecipe($this->recipe, $this->repetitions);
 		}
 	}
 

src/inventory/transaction/TransactionBuilderInventory.php

@@ -50,6 +50,10 @@ final class TransactionBuilderInventory extends BaseInventory{
 		$this->changedSlots = new \SplFixedArray($this->actualInventory->getSize());
 	}
 
+	public function getActualInventory() : Inventory{
+		return $this->actualInventory;
+	}
+
 	protected function internalSetContents(array $items) : void{
 		for($i = 0, $size = $this->getSize(); $i < $size; ++$i){
 			if(!isset($items[$i])){

src/item/Item.php

@@ -59,12 +59,27 @@ class Item implements \JsonSerializable{
 	use ItemEnchantmentHandlingTrait;
 
 	public const TAG_ENCH = "ench";
+	private const TAG_ENCH_ID = "id"; //TAG_Short
+	private const TAG_ENCH_LVL = "lvl"; //TAG_Short
+
 	public const TAG_DISPLAY = "display";
 	public const TAG_BLOCK_ENTITY_TAG = "BlockEntityTag";
 
 	public const TAG_DISPLAY_NAME = "Name";
 	public const TAG_DISPLAY_LORE = "Lore";
 
+	public const TAG_KEEP_ON_DEATH = "minecraft:keep_on_death";
+
+	private const TAG_ID = "id"; //TAG_Short
+	private const TAG_COUNT = "Count"; //TAG_Byte
+	private const TAG_DAMAGE = "Damage"; //TAG_Short
+	private const TAG_TAG = "tag"; //TAG_Compound
+
+	public const TAG_SLOT = "Slot"; //TAG_Byte
+
+	private const TAG_CAN_PLACE_ON = "CanPlaceOn"; //TAG_List<TAG_String>
+	private const TAG_CAN_DESTROY = "CanDestroy"; //TAG_List<TAG_String>
+
 	private ItemIdentifier $identifier;
 	private CompoundTag $nbt;
 
@@ -96,6 +111,8 @@ class Item implements \JsonSerializable{
 	 */
 	protected $canDestroy;
 
+	protected bool $keepOnDeath = false;
+
 	/**
 	 * Constructs a new Item type. This constructor should ONLY be used when constructing a new item TYPE to register
 	 * into the index.
@@ -222,6 +239,17 @@ class Item implements \JsonSerializable{
 		}
 	}
 
+	/**
+	 * Returns whether players will retain this item on death. If a non-player dies it will be excluded from the drops.
+	 */
+	public function keepOnDeath() : bool{
+		return $this->keepOnDeath;
+	}
+
+	public function setKeepOnDeath(bool $keepOnDeath) : void{
+		$this->keepOnDeath = $keepOnDeath;
+	}
+
 	/**
 	 * Returns whether this Item has a non-empty NBT.
 	 */
@@ -290,8 +318,8 @@ class Item implements \JsonSerializable{
 		if($enchantments !== null && $enchantments->getTagType() === NBT::TAG_Compound){
 			/** @var CompoundTag $enchantment */
 			foreach($enchantments as $enchantment){
-				$magicNumber = $enchantment->getShort("id", -1);
-				$level = $enchantment->getShort("lvl", 0);
+				$magicNumber = $enchantment->getShort(self::TAG_ENCH_ID, -1);
+				$level = $enchantment->getShort(self::TAG_ENCH_LVL, 0);
 				if($level <= 0){
 					continue;
 				}
@@ -305,7 +333,7 @@ class Item implements \JsonSerializable{
 		$this->blockEntityTag = $tag->getCompoundTag(self::TAG_BLOCK_ENTITY_TAG);
 
 		$this->canPlaceOn = [];
-		$canPlaceOn = $tag->getListTag("CanPlaceOn");
+		$canPlaceOn = $tag->getListTag(self::TAG_CAN_PLACE_ON);
 		if($canPlaceOn !== null && $canPlaceOn->getTagType() === NBT::TAG_String){
 			/** @var StringTag $entry */
 			foreach($canPlaceOn as $entry){
@@ -313,13 +341,15 @@ class Item implements \JsonSerializable{
 			}
 		}
 		$this->canDestroy = [];
-		$canDestroy = $tag->getListTag("CanDestroy");
+		$canDestroy = $tag->getListTag(self::TAG_CAN_DESTROY);
 		if($canDestroy !== null && $canDestroy->getTagType() === NBT::TAG_String){
 			/** @var StringTag $entry */
 			foreach($canDestroy as $entry){
 				$this->canDestroy[$entry->getValue()] = $entry->getValue();
 			}
 		}
+
+		$this->keepOnDeath = $tag->getByte(self::TAG_KEEP_ON_DEATH, 0) !== 0;
 	}
 
 	protected function serializeCompoundTag(CompoundTag $tag) : void{
@@ -346,8 +376,8 @@ class Item implements \JsonSerializable{
 			$ench = new ListTag();
 			foreach($this->getEnchantments() as $enchantmentInstance){
 				$ench->push(CompoundTag::create()
-					->setShort("id", EnchantmentIdMap::getInstance()->toId($enchantmentInstance->getType()))
-					->setShort("lvl", $enchantmentInstance->getLevel())
+					->setShort(self::TAG_ENCH_ID, EnchantmentIdMap::getInstance()->toId($enchantmentInstance->getType()))
+					->setShort(self::TAG_ENCH_LVL, $enchantmentInstance->getLevel())
 				);
 			}
 			$tag->setTag(self::TAG_ENCH, $ench);
@@ -364,18 +394,24 @@ class Item implements \JsonSerializable{
 			foreach($this->canPlaceOn as $item){
 				$canPlaceOn->push(new StringTag($item));
 			}
-			$tag->setTag("CanPlaceOn", $canPlaceOn);
+			$tag->setTag(self::TAG_CAN_PLACE_ON, $canPlaceOn);
 		}else{
-			$tag->removeTag("CanPlaceOn");
+			$tag->removeTag(self::TAG_CAN_PLACE_ON);
 		}
 		if(count($this->canDestroy) > 0){
 			$canDestroy = new ListTag();
 			foreach($this->canDestroy as $item){
 				$canDestroy->push(new StringTag($item));
 			}
-			$tag->setTag("CanDestroy", $canDestroy);
+			$tag->setTag(self::TAG_CAN_DESTROY, $canDestroy);
 		}else{
-			$tag->removeTag("CanDestroy");
+			$tag->removeTag(self::TAG_CAN_DESTROY);
+		}
+
+		if($this->keepOnDeath){
+			$tag->setByte(self::TAG_KEEP_ON_DEATH, 1);
+		}else{
+			$tag->removeTag(self::TAG_KEEP_ON_DEATH);
 		}
 	}
 
@@ -554,6 +590,16 @@ class Item implements \JsonSerializable{
 		return false;
 	}
 
+	/**
+	 * Called when a player uses the item to interact with entity, for example by using a name tag.
+	 *
+	 * @param Vector3 $clickVector The exact position of the click (absolute coordinates)
+	 * @return bool whether some action took place
+	 */
+	public function onInteractEntity(Player $player, Entity $entity, Vector3 $clickVector) : bool{
+		return false;
+	}
+
 	/**
 	 * Returns the number of ticks a player must wait before activating this item again.
 	 */
@@ -655,17 +701,17 @@ class Item implements \JsonSerializable{
 	 */
 	public function nbtSerialize(int $slot = -1) : CompoundTag{
 		$result = CompoundTag::create()
-			->setShort("id", $this->getId())
-			->setByte("Count", Binary::signByte($this->count))
-			->setShort("Damage", $this->getMeta());
+			->setShort(self::TAG_ID, $this->getId())
+			->setByte(self::TAG_COUNT, Binary::signByte($this->count))
+			->setShort(self::TAG_DAMAGE, $this->getMeta());
 
 		$tag = $this->getNamedTag();
 		if($tag->count() > 0){
-			$result->setTag("tag", $tag);
+			$result->setTag(self::TAG_TAG, $tag);
 		}
 
 		if($slot !== -1){
-			$result->setByte("Slot", $slot);
+			$result->setByte(self::TAG_SLOT, $slot);
 		}
 
 		return $result;
@@ -677,14 +723,14 @@ class Item implements \JsonSerializable{
 	 * @throws SavedDataLoadingException
 	 */
 	public static function nbtDeserialize(CompoundTag $tag) : Item{
-		if($tag->getTag("id") === null || $tag->getTag("Count") === null){
+		if($tag->getTag(self::TAG_ID) === null || $tag->getTag(self::TAG_COUNT) === null){
 			return VanillaItems::AIR();
 		}
 
-		$count = Binary::unsignByte($tag->getByte("Count"));
-		$meta = $tag->getShort("Damage", 0);
+		$count = Binary::unsignByte($tag->getByte(self::TAG_COUNT));
+		$meta = $tag->getShort(self::TAG_DAMAGE, 0);
 
-		$idTag = $tag->getTag("id");
+		$idTag = $tag->getTag(self::TAG_ID);
 		if($idTag instanceof ShortTag){
 			$item = ItemFactory::getInstance()->get($idTag->getValue(), $meta, $count);
 		}elseif($idTag instanceof StringTag){ //PC item save format
@@ -699,7 +745,7 @@ class Item implements \JsonSerializable{
 			throw new SavedDataLoadingException("Item CompoundTag ID must be an instance of StringTag or ShortTag, " . get_class($idTag) . " given");
 		}
 
-		$itemNBT = $tag->getCompoundTag("tag");
+		$itemNBT = $tag->getCompoundTag(self::TAG_TAG);
 		if($itemNBT !== null){
 			$item->setNamedTag(clone $itemNBT);
 		}