Pull registration functionality out of BlockTypeIds

This solves the following issues:
- Conflicts on BlockTypeIds every time someone makes a PR to add a new block
- Type IDs not consistent on different threads

We still have an auto assigned type number internally, which is used to compute
state IDs for runtime chunk storage. However, this is not directly exposed to
plugins, and is fully dynamic.
FastChunkSerializer, instead of directly passing state IDs to the next thread,
now deconstructs state IDs into their type number and state data componets,
and writes a string type name + state data separately. This allows the blocks
to be consistently decoded on the destination thread, particularly when custom
blocks are involved, as custom blocks are expected to claim unique string type
IDs

Plugins implementing custom blocks **may** use their Minecraft save ID as their
type ID, however this is not required. A type ID must, however, be globally
unique and must not conflict with any other blocks.

I haven't yet measured the performance impact to FastChunkSerializer from this
change, however, I do expect some minor performance degradation, since individual
calls on BinaryStream are slower than a bulk pack() / unpack() call.

.github/workflows/branch-sync-cron-trigger.yml

@@ -0,0 +1,32 @@
+#Since GitHub automatically disables cron actions after 60 days of repo inactivity, we need the active repo (PM)
+#to trigger the branch merge workflow explicitly. This avoids the need for TOS-violating actions which we previously
+#used to keep the restricted action active, as the workflow depends on the activity of this repo anyway.
+
+name: Trigger branch sync
+
+on:
+  schedule:
+    - cron: "0 0 * * *" #once per day so we don't spam merge commits on busy days
+  workflow_dispatch: #for testing
+
+jobs:
+  trigger:
+    name: Trigger branch sync RestrictedActions workflow
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Generate access token
+        id: generate-token
+        uses: actions/create-github-app-token@v2
+        with:
+          app-id: ${{ vars.RESTRICTED_ACTIONS_DISPATCH_ID }}
+          private-key: ${{ secrets.RESTRICTED_ACTIONS_DISPATCH_KEY }}
+          owner: ${{ github.repository_owner }}
+          repositories: RestrictedActions
+
+      - name: Dispatch branch sync restricted action
+        uses: peter-evans/repository-dispatch@v3
+        with:
+          token: ${{ steps.generate-token.outputs.token }}
+          repository: ${{ github.repository_owner }}/RestrictedActions
+          event-type: pocketmine_mp_branch_sync

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

@@ -4,6 +4,11 @@ on:
   release:
     types:
       - published
+  workflow_dispatch:
+    inputs:
+      release:
+        description: 'Tag name to build'
+        required: true
 
 jobs:
   build:
@@ -28,16 +33,28 @@ jobs:
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Clone pmmp/PocketMine-Docker repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: pmmp/PocketMine-Docker
           fetch-depth: 1
 
-      - name: Get tag names
+
+      - name: Get tag name
         id: tag-name
         run: |
-          VERSION=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{')
-          echo TAG_NAME=$VERSION >> $GITHUB_OUTPUT
+          if [[ "${{ github.event_name }}" == "release" ]]; then
+            echo TAG_NAME="${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
+          elif [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+            echo TAG_NAME="${{ github.event.inputs.release }}" >> $GITHUB_OUTPUT
+          else
+            echo "Unsupported event type: ${{ github.event_name }}"
+            exit 1
+          fi
+
+      - name: Parse version
+        id: version
+        run: |
+          VERSION="${{ steps.tag-name.outputs.TAG_NAME }}"
           echo MAJOR=$(echo $VERSION | cut -d. -f1) >> $GITHUB_OUTPUT
           echo MINOR=$(echo $VERSION | cut -d. -f1-2) >> $GITHUB_OUTPUT
 
@@ -53,7 +70,7 @@ jobs:
         run: echo NAME=$(echo "${GITHUB_REPOSITORY,,}") >> $GITHUB_OUTPUT
 
       - name: Build image for tag
-        uses: docker/build-push-action@v6.16.0
+        uses: docker/build-push-action@v6.18.0
         with:
           push: true
           context: ./pocketmine-mp
@@ -66,33 +83,33 @@ jobs:
 
       - name: Build image for major tag
         if: steps.channel.outputs.CHANNEL == 'stable'
-        uses: docker/build-push-action@v6.16.0
+        uses: docker/build-push-action@v6.18.0
         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 }}
+            ${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.version.outputs.MAJOR }}
+            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.version.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@v6.16.0
+        uses: docker/build-push-action@v6.18.0
         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 }}
+            ${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.version.outputs.MINOR }}
+            ghcr.io/${{ steps.docker-repo-name.outputs.NAME }}:${{ steps.version.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@v6.16.0
+        uses: docker/build-push-action@v6.18.0
         with:
           push: true
           context: ./pocketmine-mp

.github/workflows/copilot-setup-steps.yml

@@ -0,0 +1,47 @@
+name: "Copilot Agent environment setup"
+
+on:
+  workflow_dispatch:
+  push:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+  pull_request:
+    paths:
+      - .github/workflows/copilot-setup-steps.yml
+
+jobs:
+  # The job MUST be called `copilot-setup-steps` or it will not be picked up by Copilot.
+  copilot-setup-steps:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+
+    steps:
+      - uses: actions/checkout@v5
+
+      - name: Setup PHP
+        uses: pmmp/setup-php-action@3.2.0
+        with:
+          php-version: 8.3
+          install-path: "./bin"
+          pm-version-major: 5
+
+      - name: Restore Composer package cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cache/composer/files
+            ~/.cache/composer/vcs
+          key: "composer-v2-cache-8.3-${{ hashFiles('./composer.lock') }}"
+          restore-keys: |
+            composer-v2-cache-
+
+      - name: Install Composer dependencies
+        run: composer install --prefer-dist --no-interaction
+
+      - name: Clone extension stubs
+        uses: actions/checkout@v5
+        with:
+          repository: pmmp/phpstorm-stubs
+          path: extension-stubs

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

@@ -4,18 +4,23 @@ on:
   release:
     types:
       - published
+  workflow_dispatch:
+    inputs:
+      release:
+        description: 'Release to make notification for'
+        required: true
 
 jobs:
   build:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP and tools
-        uses: shivammathur/setup-php@2.33.0
+        uses: shivammathur/setup-php@2.35.3
         with:
-          php-version: 8.2
+          php-version: 8.3
 
       - name: Restore Composer package cache
         uses: actions/cache@v4
@@ -30,9 +35,17 @@ jobs:
       - name: Install Composer dependencies
         run: composer install --no-dev --prefer-dist --no-interaction --ignore-platform-reqs
 
-      - name: Get actual tag name
+      - name: Get tag name
         id: tag-name
-        run: echo TAG_NAME=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{') >> $GITHUB_OUTPUT
+        run: |
+          if [[ "${{ github.event_name }}" == "release" ]]; then
+            echo TAG_NAME="${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
+          elif [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+            echo TAG_NAME="${{ github.event.inputs.release }}" >> $GITHUB_OUTPUT
+          else
+            echo "Unsupported event type: ${{ github.event_name }}"
+            exit 1
+          fi
 
       - 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 }} ${{ secrets.DISCORD_NEWS_PING_ROLE_ID }}

.github/workflows/draft-release-pr-check.yml

@@ -30,7 +30,7 @@ jobs:
       valid: ${{ steps.validate.outputs.DEV_BUILD == 'false' }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Check IS_DEVELOPMENT_BUILD flag
         id: validate
@@ -46,12 +46,12 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.33.0
+        uses: shivammathur/setup-php@2.35.3
         with:
-          php-version: 8.2
+          php-version: 8.3
 
       - name: Restore Composer package cache
         uses: actions/cache@v4

.github/workflows/draft-release.yml

@@ -18,7 +18,7 @@ on:
       - "*"
 
 env:
-  PHP_VERSION: "8.2"
+  PHP_VERSION: "8.3"
 
 jobs:
   skip:
@@ -82,12 +82,12 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: true
 
       - name: Setup PHP
-        uses: shivammathur/setup-php@2.33.0
+        uses: shivammathur/setup-php@2.35.3
         with:
           php-version: ${{ env.PHP_VERSION }}
 
@@ -165,7 +165,7 @@ jobs:
             ${{ github.workspace }}/core-permissions.rst
 
       - name: Create draft release
-        uses: ncipollo/release-action@v1.16.0
+        uses: ncipollo/release-action@v1.18.0
         id: create-draft
         with:
           artifacts: ${{ github.workspace }}/PocketMine-MP.phar,${{ github.workspace }}/start.*,${{ github.workspace }}/build_info.json,${{ github.workspace }}/core-permissions.rst
@@ -188,4 +188,4 @@ jobs:
         if: github.event_name == 'pull_request_target'
         uses: thollander/actions-comment-pull-request@v3
         with:
-          message: "[Draft release ${{ steps.get-pm-version.outputs.PM_VERSION }}](${{ steps.create-draft.outputs.html_url }}) has been created for commit ${{ github.sha }}. Please review and publish it."
+          message: "${{ vars.DRAFT_RELEASE_NOTIFICATION_MENTION }} [Draft release ${{ steps.get-pm-version.outputs.PM_VERSION }}](${{ steps.create-draft.outputs.html_url }}) has been created for commit ${{ github.sha }}. Please review and publish it."

.github/workflows/main-php-matrix.yml

@@ -27,7 +27,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@3.2.0
@@ -59,7 +59,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@3.2.0
@@ -91,7 +91,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           submodules: true
 
@@ -125,7 +125,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: pmmp/setup-php-action@3.2.0

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php: ["8.1", "8.2", "8.3"]
+        php: ["8.3"]
 
     uses: ./.github/workflows/main-php-matrix.yml
     with:
@@ -25,10 +25,10 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Setup PHP and tools
-        uses: shivammathur/setup-php@2.33.0
+        uses: shivammathur/setup-php@2.35.3
         with:
           php-version: 8.3
           tools: php-cs-fixer:3.75
@@ -45,7 +45,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@2.0.0

.github/workflows/pr-remove-waiting-label.yml

@@ -15,19 +15,23 @@ jobs:
         with:
           github-token: ${{ github.token }}
           script: |
-            const [owner, repo] = context.payload.repository.full_name.split('/');
-            try {
-              await github.rest.issues.removeLabel({
-                owner: owner,
-                repo: repo,
-                issue_number: context.payload.number,
-                name: "Status: Waiting on Author",
-              });
-            } catch (error) {
-              if (error.status === 404) {
-                //probably label wasn't set on the issue
-                console.log('Failed to remove label (probably label isn\'t on the PR): ' + error.message);
-              } else {
-                throw error;
+            async function removeLabel(owner, repo, issue_number, name) {
+              try {
+                await github.rest.issues.removeLabel({
+                  owner: owner,
+                  repo: repo,
+                  issue_number: issue_number,
+                  name: name,
+                });
+              } catch (error) {
+                if (error.status === 404) {
+                  //probably label wasn't set on the issue
+                  console.log('Failed to remove label ' + name + ' (probably label isn\'t on the PR): ' + error.message);
+                } else {
+                  throw error;
+                }
               }
             }
+            const [owner, repo] = context.payload.repository.full_name.split('/');
+            removeLabel(owner, repo, context.payload.number, "Status: Waiting on Author");
+            removeLabel(owner, repo, context.payload.number, "Stale");

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

@@ -4,6 +4,11 @@ on:
   release:
     types:
       - published
+  workflow_dispatch:
+    inputs:
+      release:
+        description: 'Release to publish info for'
+        required: true
 
 jobs:
   build:
@@ -14,14 +19,22 @@ jobs:
       - name: Install jq
         run: sudo apt update && sudo apt install jq -y
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           repository: ${{ github.repository_owner }}/update.pmmp.io
           ssh-key: ${{ secrets.UPDATE_PMMP_IO_DEPLOY_KEY }}
 
-      - name: Get actual tag name
+      - name: Get tag name
         id: tag-name
-        run: echo TAG_NAME=$(echo "${{ github.ref }}" | sed 's{^refs/tags/{{') >> $GITHUB_OUTPUT
+        run: |
+          if [[ "${{ github.event_name }}" == "release" ]]; then
+            echo TAG_NAME="${{ github.event.release.tag_name }}" >> $GITHUB_OUTPUT
+          elif [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
+            echo TAG_NAME="${{ github.event.inputs.release }}" >> $GITHUB_OUTPUT
+          else
+            echo "Unsupported event type: ${{ github.event_name }}"
+            exit 1
+          fi
 
       - 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

.gitmodules

@@ -1,6 +1,3 @@
-[submodule "tests/plugins/DevTools"]
-	path = tests/plugins/DevTools
-	url = https://github.com/pmmp/DevTools.git
 [submodule "build/php"]
 	path = build/php
 	url = https://github.com/pmmp/php-build-scripts.git

.php-cs-fixer.php

@@ -5,7 +5,7 @@ $finder = PhpCsFixer\Finder::create()
 	->in(__DIR__ . '/build')
 	->in(__DIR__ . '/tests')
 	->in(__DIR__ . '/tools')
-	->notPath('plugins/DevTools')
+
 	//JsonMapper will break if the FQNs in the doc comments for these are shortened :(
 	->notPath('crafting/json')
 	->notPath('inventory/json')

README.md

@@ -12,7 +12,7 @@
 </p>
 
 <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/actions/workflows/main.yml"><img src="https://github.com/pmmp/PocketMine-MP/actions/workflows/main.yml/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://discord.gg/bmSAZBG"><img src="https://img.shields.io/discord/373199722573201408?label=discord&color=7289DA&logo=discord" alt="Discord" /></a>
 	<br>

changelogs/5.28.md

@@ -10,7 +10,7 @@ Do not update plugin minimum API versions unless you need new features added in
 Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you're using packets directly.
 
 ## General
-- Aded support for Minecraft: Bedrock Edition 1.21.70.
+- Added support for Minecraft: Bedrock Edition 1.21.80.
 - Removed support for earlier versions.
 
 ## Fixes
@@ -19,3 +19,16 @@ Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if
 
 ## Internals
 - Improved PHPStan error reporting for unsafe foreaches. Foreach on an array with implicit keys now generates different errors than foreach on an array with string keys.
+
+# 5.28.1
+Released 17th May 2025.
+
+## Fixes
+- Fixed errors when PlayStation players attempt to join due to null `TitleID`.
+
+# 5.28.2
+Released 17th May 2025.
+
+## Fixes
+- Fixed version constraints which were incorrectly updated during the 1.21.80 update. This led to an unnoticed failure to update BedrockProtocol in the previous patch release.
+- Actually fixed PlayStation issues this time

changelogs/5.29.md

@@ -0,0 +1,25 @@
+# 5.29.0
+Released 18th June 2025.
+
+This is a support release for Minecraft: Bedrock Edition 1.21.90.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe` or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**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.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.21.90.
+- Removed support for earlier versions.
+
+## Fixes
+- Fixed thread crashes sometimes not reporting proper cause information in crashdumps.
+- Fixed crash when a plugin replaced a player's held tool with a different tool with a damage exceeding the old tool's max damage during an action.
+- Fixed performance issue of `PlayerAuthInputPacket` input flags handling (broken change detection).
+- Fixed `BaseInventory->addItem()` triggering updates on empty slots when no items were added.
+- Fixed slow check in `SubChunk` block layer garbage collection.
+
+## Internals
+- `LoginPacketHandler->processLogin()` signature has changed. This will break any plugins overriding `LoginPacketHandler`. As noted above, this is _not_ covered by the API version guarantee.
+- Automated branch sync for `minor-next` and `major-next` is now triggered by `repository_dispatch` from a cron job in this repository instead of `RestrictedActions`. The `RestrictedActions` cron job was getting automatically disabled by GitHub due to repo inactivity.

changelogs/5.30.md

@@ -0,0 +1,73 @@
+# 5.30.0
+Released 18th June 2025.
+
+This is a minor feature release containing API additions, internals cleanup and user experience improvements.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe` or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**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.
+
+## General
+- Significantly reduced log spam when unknown blocks, tiles and entities are found in saved worlds.
+- The file name structure for crashdumps has been changed to improve sorting order in file browsers.
+- Buffering is now skipped on the RakLib layer. In theory this could reduce player network latency by 10 ms (YMMV).
+
+## Gameplay
+### Blocks
+- Many blocks have had their hardness and blast resistance updated to match vanilla.
+- Implemented Respawn Anchor.
+- Melon Stem and Pumpkin Stem drop amounts should now match vanilla (using binomial distribution).
+
+## API
+## General
+- Verification of save registration has been added for blocks, entities and tiles. This is intended to make it easier to find mistakes when registering custom things, which previously would produce obscure core crashes.
+
+### `pocketmine\event\block`
+- The following classes have been added:
+  - `BlockPreExplodeEvent` - called before a block tries to explode
+  - `BlockExplodeEvent` - called when after a block's explosion calculation has been done, but before any changes are applied
+
+### `pocketmine\event\entity`
+- The following classes have been added:
+  - `EntityExtinguishEvent` - called when a burning entity is extinguished by water or other sources
+  - `EntityFrostWalkerEvent` - called every tick upon which an entity wearing Frost Walker boots moves; this can be used to customise or cancel the behaviour of the Frost Walker enchantment
+
+### `pocketmine\event\player`
+- The following classes have been added:
+  - `PlayerRespawnAnchorUseEvent` - called when a player interacts with a charged respawn anchor
+
+### `pocketmine\entity`
+- The following methods have been added:
+  - `public Entity->getStepHeight() : float`
+  - `public Entity->setStepHeight(float $stepHeight) : void`
+
+### `pocketmine\world\generator`
+- Generator execution has been decoupled from `PopulationTask` and async tasks in general. The following classes have been added:
+  - `executor\GeneratorExecutor`
+  - `executor\SyncGeneratorExecutor` - runs a generator on the main thread (used for flat world generation, which doesn't need threads)
+  - `executor\AsyncGeneratorExecutor` - runs a generator inside an async task, as before
+  - `PopulationUtils` - contains population business logic previously baked into `PopulationTask` - this permits the reuse of that logic outside async tasks
+- The following methods have signature changes:
+  - `GeneratorManager->addGenerator()` now accepts an optional `bool $fast` parameter, defaulting to `false`; setting this to `true` will cause your generator to run on the main thread
+- The following methods have been added:
+  - `public GeneratorManagerEntry->isFast() : bool` - returns whether this generator should run on the main thread
+- `PopulationTask` has been marked as `@internal`. In the next major version, it will move to the `generator\executor` namespace; however, for now it stays put because plugins currently have no other way to regenerate chunks.
+
+## Internals
+- World data version numbers have been consolidated in `pocketmine\data\bedrock\WorldDataVersions`. This removes the need to modify several different files to support new world versions, and reduces the chances of things getting missed.
+- Block hardness and blast resistance is now unit-tested against `block_properties_table.json` in `BedrockData`. This file comes from vanilla BDS, so we can use it to verify compliance.
+- Protocol-layer "server auth block breaking" has been enabled. Functionally, this is no different from the previous system, it just works differently on the network layer.
+- Various internal classes in the `pocketmine\world\generator` namespace have been moved to the `generator\executor` namespace.
+- Removed `World->registerGenerator()` and `World->unregisterGenerator()`.
+- Removed redundant calls to `curl_close()` (obsolete since PHP 8.0).
+
+# 5.30.1
+Released 23rd June 2025.
+
+## Fixes
+- Fixed accidental break of backwards compatibility in `EntityExplodeEvent` introduced in the previous release.
+- Fixed placement of player holding block when exploding respawn anchor.
+- Updated BedrockProtocol to fix incorrect encoding of `ServerScriptDebugDrawerPacket`.
+- Disabled client-side locator bar, allowing plugins to write their own implementations.

changelogs/5.31.md

@@ -0,0 +1,14 @@
+# 5.31.0
+Released 8th July 2025.
+
+This is a support release for Minecraft: Bedrock Edition 1.21.93.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe` or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**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.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.21.93.
+- Removed support for earlier versions.

changelogs/5.32.md

@@ -0,0 +1,25 @@
+# 5.32.0
+Released 6th August 2025.
+
+This is a support release for Minecraft: Bedrock Edition 1.21.100.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe` or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**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.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.21.100.
+- Removed support for earlier versions.
+
+## Fixes
+- Fixed deadlock on RakLib thread crash (e.g. due to port binding failure).
+
+# 5.32.1
+Released 14th August 2025.
+
+## Fixes
+- Hardened checks when processing resource pack sending during player logins.
+- Fixed content log warning about crafting recipe with missing ID.
+- Fixed packets in a batch still being processed after one of them caused the session to be terminated.

changelogs/5.33.md

@@ -0,0 +1,129 @@
+# 5.33.0
+Released 30th August 2025.
+
+This is a minor feature release containing internals improvements, API improvements and new gameplay features.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe` or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**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.
+
+## Performance
+- Worlds now remember when a chunk isn't generated. This reduces world I/O during world generation.
+- `BlockObjectToStateSerializer` now creates fewer objects in certain cases.
+
+## Gameplay
+- The following blocks have been added and/or are now properly supported:
+  - Hanging signs
+  - Illager banners
+
+## Tools
+- `generate-bedrock-data-from-packets.php` now represents items as strings directly when only an ID is present. This significantly improves readability in `BedrockData` and reduces file sizes.
+
+## API
+### `pocketmine\block`
+- Added (and implemented) interfaces for many common block properties, to allow `instanceof` to be used:
+  - `Ageable`: for blocks with age, such as crops
+  - `AnyFacing`: for blocks which can face up, down, and horizontal directions (not the same as `HorizontalFacing`!)
+  - `Colored`: for blocks with 16 `DyeColor` variants
+  - `CoralMaterial`: for coral blocks, provides access to coral type and dead/alive
+  - `HorizontalFacing`: for blocks which can **only** face horizontal directions (not the same as `AnyFacing`!)
+  - `Lightable`: for light-source blocks which can be turned on and off, e.g. redstone lamp
+  - `MultiAnyFacing`: for blocks which can appear in multiple faces of the same block (including up, down, and horizontal faces), e.g. glow lichen
+  - `PillarRotation`: for blocks which can be oriented on an axis, e.g. logs
+  - `PoweredByRedstone`: for blocks which receive power from a redstone component, e.g. redstone lamp
+  - `SignLikeRotation`: for blocks which can be rotated 16 ways, e.g. signs, banners
+  - `WoodMaterial`: for blocks made from wood
+  - These interfaces have been implemented on many blocks. For the sake of brevity, they are not listed here, but you can expect to see them wherever the corresponding traits were used.
+- The following classes have been added:
+  - `BaseOminousBanner`
+  - `CeilingCenterHangingSign` - both chains connected to the same point on the block above, can face 16 directions
+  - `CeilingEdgesHangingSign` - each chain connected to separate edges of the block above, can face 4 directions
+  - `OminousFloorBanner` - floor version of illager banner, can face 16 directions
+  - `OminousWallBanner` - wall version of illager banner, can face 4 directions
+  - `WallHangingSign` - hangs from a horizontal beam, can face 4 directions
+- The following API methods have been added:
+  - `public ChiseledBookshelf->setSlots(list<ChiseledBookshelfSlot> $slots) : $this`
+  - `public static VanillaBlocks` methods:
+    - `ACACIA_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `ACACIA_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `ACACIA_WALL_HANGING_SIGN() : WallHangingSign`
+    - `BIRCH_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `BIRCH_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `BIRCH_WALL_HANGING_SIGN() : WallHangingSign`
+    - `CHERRY_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `CHERRY_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `CHERRY_WALL_HANGING_SIGN() : WallHangingSign`
+    - `CRIMSON_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `CRIMSON_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `CRIMSON_WALL_HANGING_SIGN() : WallHangingSign`
+    - `DARK_OAK_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `DARK_OAK_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `DARK_OAK_WALL_HANGING_SIGN() : WallHangingSign`
+    - `JUNGLE_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `JUNGLE_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `JUNGLE_WALL_HANGING_SIGN() : WallHangingSign`
+    - `MANGROVE_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `MANGROVE_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `MANGROVE_WALL_HANGING_SIGN() : WallHangingSign`
+    - `OAK_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `OAK_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `OAK_WALL_HANGING_SIGN() : WallHangingSign`
+    - `OMINOUS_FLOOR_BANNER() : OminousFloorBanner`
+    - `OMINOUS_WALL_BANNER() : OminousWallBanner`
+    - `PALE_OAK_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `PALE_OAK_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `PALE_OAK_WALL_HANGING_SIGN() : WallHangingSign`
+    - `SPRUCE_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `SPRUCE_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `SPRUCE_WALL_HANGING_SIGN() : WallHangingSign`
+    - `WARPED_CEILING_CENTER_HANGING_SIGN() : CeilingCenterHangingSign`
+    - `WARPED_CEILING_EDGES_HANGING_SIGN() : CeilingEdgesHangingSign`
+    - `WARPED_WALL_HANGING_SIGN() : WallHangingSign`
+  - `public AgeableTrait->getMaxAge() : int` (included by all growable plant-like blocks, e.g. crops)
+
+### `pocketmine\data\bedrock\block\convert`
+- A new system for symmetric block serializers and deserializers has been introduced.
+  - This allows registering both a serializer and a deserializer with the same code, meaning way less code
+  - It also eliminates information duplication and potential inconsistencies, improving maintainability.
+  - A proper way to deal with flattened IDs (e.g. color blocks) has been introduced which _doesn't_ require hardcoding a giant mess of IDs
+  - This symmetric system covers 99% of blocks which have a 1:1 association between PM and vanilla blocks, or 1:N where IDs are flattened
+  - However, there are still some special cases which require registering separate serializers and deserializers (usually in cases where the PM implementation deviates from Mojang where Mojang's implementation sucks, such as hanging signs or big dripleaf).
+  - No backwards compatibility breaks are expected as a result of this change. However, it's recommended to migrate old code to this new system for maintainability.
+  - The following new classes have been added:
+    - `BlockSerializerDeserializerRegistrar` - handles unified registration of block serializers and deserializers, based on a provided block model
+    - `FlattenedIdModel` - represents a block with some properties baked into its Minecraft ID, e.g. coral or color blocks
+    - `Model` - represents a regular block with all properties in its `states` NBT
+    - `property\BoolFromStringProperty<TBlock>` - property mapping a bool value from a string NBT state
+    - `property\BoolProperty<TBlock>`
+    - `property\CommonProperties` - singleton containing commonly-used block property definitions and groups, e.g. facing, stair properties
+    - `property\EnumFromRawStateMap<TEnum, TRaw>` - maps a raw NBT value to a PHP `enum` and vice versa
+    - `property\IntFromRawStateMap<TRaw>` - maps a raw NBT value to PM integer constants and vice versa
+    - `property\IntProperty<TBlock>` - an integer range property with a min, max, and optional offset
+    - `property\Property<TBlock>` - interface implemented by all property definitions accepted by a `Model` or `FlattenedIdModel`
+    - `property\StateMap<TValue, TRaw>` - interface implemented by classes accepted by mapping properties, e.g. `BoolFromStringProperty`
+    - `property\StringProperty<TBlock>` - interface implemented by properties whose raw outputs are strings - these can be used as ID components in `FlattenedIdModel`
+    - `property\ValueFromIntProperty<TBlock, TValue>` - property mapping a generic PM value from an int NBT state
+    - `property\ValueFromStringProperty<TBlock, TValue>` - same as above, but for a string NBT state
+    - `property\ValueSetFromIntProperty<TBlock, TOption>` - a property mapping an `int[]` or `enum[]` from a set of flags in NBT states
+    - `property\ValueMappings` - singleton containing commonly-needed `StateMap`s
+  - The following classes have been deprecated:
+    - `BlockStateDeserializerHelper`
+    - `BlockStateSerializerHelper`
+  - The following methods have been deprecated:
+    - All methods for decoding mapped property types in `BlockStateReader`, e.g. `readFacingDirection()`
+    - All methods for encoding mapped property types in `BlockStateWriter`, e.g. `writeFacingDirection()`
+    - All specific blocktype mapping functions in `BlockStateToObjectDeserializer`, e.g. `mapStairs()`
+    - All specific blocktype mapping functions in `BlockObjectToStateSerializer`, e.g. `mapStairs()`
+
+### `pocketmine\item`
+- The following hooks have been added:
+  - `public Item->getPlacementTransaction(Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : ?BlockTransaction` - allows more complex logic for itemblocks to place blocks, without duplicating their placement conditions (used for hanging signs)
+
+### `pocketmine\world`
+- `World->setChunk()` now verifies that blockstate IDs in the provided chunk are all registered in `RuntimeBlockStateRegistry`. This should provide earlier detection for custom block registration errors by plugins.
+
+## Internals
+- `BlockStateUpgrader` is now almost entirely independent from `BlockStateData`. It's anticipated that the upgrader library will be separable from the core in the future.
+- `Block->readStateFromWorld()` is now triggered on chunk load for any position containing a tile. This should allow more effective updating of blocks with properties in their tiles.

composer.json

@@ -5,7 +5,7 @@
    "homepage": "https://pmmp.io",
    "license": "LGPL-3.0",
    "require": {
-      "php": "^8.1",
+      "php": "^8.3",
       "php-64bit": "*",
       "ext-chunkutils2": "^0.3.1",
       "ext-crypto": "^0.3.1",
@@ -34,28 +34,32 @@
       "adhocore/json-comment": "~1.2.0",
       "netresearch/jsonmapper": "~v5.0.0",
       "pocketmine/bedrock-block-upgrade-schema": "~5.1.0+bedrock-1.21.60",
-      "pocketmine/bedrock-data": "5.0.0+bedrock-1.21.80",
-      "pocketmine/bedrock-item-upgrade-schema": "~1.14.0+bedrock-1.21.50",
-      "pocketmine/bedrock-protocol": "38.0.0+bedrock-1.21.80",
+      "pocketmine/bedrock-data": "~6.0.0+bedrock-1.21.100",
+      "pocketmine/bedrock-item-upgrade-schema": "~1.15.0+bedrock-1.21.100",
+      "pocketmine/bedrock-protocol": "~40.0.0+bedrock-1.21.100",
       "pocketmine/binaryutils": "^0.2.1",
-      "pocketmine/callback-validator": "^1.0.2",
+      "pocketmine/callback-validator": "dev-rewrite",
       "pocketmine/color": "^0.3.0",
       "pocketmine/errorhandler": "^0.7.0",
-      "pocketmine/locale-data": "~2.24.0",
+      "pocketmine/locale-data": "~2.25.0",
       "pocketmine/log": "^0.4.0",
-      "pocketmine/math": "~1.0.0",
+      "pocketmine/math": "dev-major-next as 1.0.0",
       "pocketmine/nbt": "~1.1.0",
-      "pocketmine/raklib": "~1.1.2",
+      "pocketmine/raklib": "~1.2.0",
       "pocketmine/raklib-ipc": "~1.0.0",
       "pocketmine/snooze": "^0.5.0",
-      "ramsey/uuid": "~4.7.0",
-      "symfony/filesystem": "~6.4.0"
+      "ramsey/uuid": "~4.9.0",
+      "symfony/filesystem": "~7.3.0"
    },
    "require-dev": {
-      "phpstan/phpstan": "2.1.11",
+      "phpstan/phpstan": "2.1.17",
       "phpstan/phpstan-phpunit": "^2.0.0",
       "phpstan/phpstan-strict-rules": "^2.0.0",
-      "phpunit/phpunit": "^10.5.24"
+      "phpunit/phpunit": "^12.2.1"
+   },
+   "replace": {
+      "symfony/polyfill-ctype": "*",
+      "symfony/polyfill-mbstring": "*"
    },
    "autoload": {
       "psr-4": {
@@ -73,12 +77,11 @@
    },
    "config": {
       "platform": {
-         "php": "8.1.0"
+         "php": "8.3.0"
       },
       "sort-packages": true
    },
    "scripts": {
-      "make-devtools": "@php -dphar.readonly=0 tests/plugins/DevTools/src/ConsoleScript.php --make ./ --relative tests/plugins/DevTools --out plugins/DevTools.phar",
       "make-server": [
          "@composer install --no-dev --classmap-authoritative --ignore-platform-reqs",
          "@php -dphar.readonly=0 build/server-phar.php"

phpstan.neon.dist

@@ -10,9 +10,7 @@ includes:
 	- vendor/phpstan/phpstan-strict-rules/rules.neon
 
 rules:
-	- pocketmine\phpstan\rules\DeprecatedLegacyEnumAccessRule
 	- pocketmine\phpstan\rules\DisallowDynamicNewRule
-	- pocketmine\phpstan\rules\DisallowEnumComparisonRule
 	- pocketmine\phpstan\rules\DisallowForeachByReferenceRule
 	- pocketmine\phpstan\rules\ExplodeLimitRule
 	- pocketmine\phpstan\rules\UnsafeForeachRule

src/MemoryManager.php

@@ -123,13 +123,6 @@ class MemoryManager{
 		return $this->globalMemoryLimit;
 	}
 
-	/**
-	 * @deprecated
-	 */
-	public function canUseChunkCache() : bool{
-		return !$this->lowMemory;
-	}
-
 	/**
 	 * Returns the allowed chunk radius based on the current memory usage.
 	 */
@@ -236,13 +229,4 @@ class MemoryManager{
 			}
 		}
 	}
-
-	/**
-	 * Static memory dumper accessible from any thread.
-	 * @deprecated
-	 * @see MemoryDump
-	 */
-	public static function dumpMemory(mixed $startingObject, string $outputFolder, int $maxNesting, int $maxStringSize, \Logger $logger) : void{
-		MemoryDump::dumpMemory($startingObject, $outputFolder, $maxNesting, $maxStringSize, $logger);
-	}
 }

src/PocketMine.php

@@ -55,7 +55,7 @@ namespace pocketmine {
 
 	require_once __DIR__ . '/VersionInfo.php';
 
-	const MIN_PHP_VERSION = "8.1.0";
+	const MIN_PHP_VERSION = "8.3.0";
 
 	/**
 	 * @param string $message

src/Server.php

@@ -80,6 +80,7 @@ use pocketmine\player\PlayerDataLoadException;
 use pocketmine\player\PlayerDataProvider;
 use pocketmine\player\PlayerDataSaveException;
 use pocketmine\player\PlayerInfo;
+use pocketmine\plugin\FolderPluginLoader;
 use pocketmine\plugin\PharPluginLoader;
 use pocketmine\plugin\PluginEnableOrder;
 use pocketmine\plugin\PluginGraylist;
@@ -346,6 +347,10 @@ class Server{
 		return $this->maxPlayers;
 	}
 
+	public function setMaxPlayers(int $maxPlayers) : void{
+		$this->maxPlayers = $maxPlayers;
+	}
+
 	/**
 	 * Returns whether the server requires that players be authenticated to Xbox Live. If true, connecting players who
 	 * are not logged into Xbox Live will be disconnected.
@@ -1029,6 +1034,7 @@ class Server{
 			$this->pluginManager = new PluginManager($this, $this->configGroup->getPropertyBool(Yml::PLUGINS_LEGACY_DATA_DIR, true) ? null : Path::join($this->dataPath, "plugin_data"), $pluginGraylist);
 			$this->pluginManager->registerInterface(new PharPluginLoader($this->autoloader));
 			$this->pluginManager->registerInterface(new ScriptPluginLoader());
+			$this->pluginManager->registerInterface(new FolderPluginLoader($this->autoloader));
 
 			$providerManager = new WorldProviderManager();
 			if(
@@ -1618,7 +1624,7 @@ class Server{
 		if(!is_dir($crashFolder)){
 			mkdir($crashFolder);
 		}
-		$crashDumpPath = Path::join($crashFolder, date("D_M_j-H.i.s-T_Y", (int) $dump->getData()->time) . ".log");
+		$crashDumpPath = Path::join($crashFolder, date("Y-m-d_H.i.s_T", (int) $dump->getData()->time) . ".log");
 
 		$fp = @fopen($crashDumpPath, "wb");
 		if(!is_resource($fp)){

src/VersionInfo.php

@@ -31,8 +31,8 @@ use function str_repeat;
 
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
-	public const BASE_VERSION = "5.28.0";
-	public const IS_DEVELOPMENT_BUILD = false;
+	public const BASE_VERSION = "5.33.1";
+	public const IS_DEVELOPMENT_BUILD = true;
 	public const BUILD_CHANNEL = "stable";
 
 	/**

src/block/ActivatorRail.php

@@ -23,9 +23,10 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\PoweredByRedstone;
 use pocketmine\block\utils\RailPoweredByRedstoneTrait;
 
-class ActivatorRail extends StraightOnlyRail{
+class ActivatorRail extends StraightOnlyRail implements PoweredByRedstone{
 	use RailPoweredByRedstoneTrait;
 
 	//TODO

src/block/AmethystCluster.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\AmethystTrait;
+use pocketmine\block\utils\AnyFacing;
 use pocketmine\block\utils\AnyFacingTrait;
 use pocketmine\block\utils\FortuneDropHelper;
 use pocketmine\block\utils\SupportType;
@@ -38,7 +39,7 @@ use pocketmine\player\Player;
 use pocketmine\utils\AssumptionFailedError;
 use pocketmine\world\BlockTransaction;
 
-final class AmethystCluster extends Transparent{
+final class AmethystCluster extends Transparent implements AnyFacing{
 	use AmethystTrait;
 	use AnyFacingTrait;
 
@@ -81,22 +82,22 @@ final class AmethystCluster extends Transparent{
 			if($axis === $myAxis){
 				continue;
 			}
-			$box->squash($axis, $this->stage === self::STAGE_SMALL_BUD ? 4 / 16 : 3 / 16);
+			$box = $box->squashedCopy($axis, $this->stage === self::STAGE_SMALL_BUD ? 4 / 16 : 3 / 16);
 		}
-		$box->trim($this->facing, 1 - ($this->stage === self::STAGE_CLUSTER ? 7 / 16 : ($this->stage + 3) / 16));
+		$box = $box->trimmedCopy($this->facing, 1 - ($this->stage === self::STAGE_CLUSTER ? 7 / 16 : ($this->stage + 3) / 16));
 
 		return [$box];
 	}
 
-	private function canBeSupportedAt(Block $block, int $facing) : bool{
+	private function canBeSupportedAt(Block $block, Facing $facing) : bool{
 		return $block->getAdjacentSupportType($facing) === SupportType::FULL;
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if(!$this->canBeSupportedAt($blockReplace, Facing::opposite($face))){
 			return false;
 		}

src/block/Anvil.php

@@ -26,6 +26,8 @@ namespace pocketmine\block;
 use pocketmine\block\inventory\AnvilInventory;
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -41,7 +43,7 @@ use pocketmine\world\sound\AnvilFallSound;
 use pocketmine\world\sound\Sound;
 use function round;
 
-class Anvil extends Transparent implements Fallable{
+class Anvil extends Transparent implements Fallable, HorizontalFacing{
 	use FallableTrait;
 	use HorizontalFacingTrait;
 
@@ -56,7 +58,7 @@ class Anvil extends Transparent implements Fallable{
 	}
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 	}
 
 	public function getDamage() : int{ return $this->damage; }
@@ -71,14 +73,14 @@ class Anvil extends Transparent implements Fallable{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->squash(Facing::axis(Facing::rotateY($this->facing, false)), 1 / 8)];
+		return [AxisAlignedBB::one()->squashedCopy(Facing::axis(Facing::rotateY($this->facing->toFacing(), false)), 1 / 8)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			$player->setCurrentWindow(new AnvilInventory($this->position));
 		}
@@ -86,9 +88,9 @@ class Anvil extends Transparent implements Fallable{
 		return true;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
-			$this->facing = Facing::rotateY($player->getHorizontalFacing(), false);
+			$this->facing = HorizontalFacingOption::fromFacing(Facing::rotateY($player->getHorizontalFacing(), false));
 		}
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}

src/block/Bamboo.php

@@ -90,10 +90,10 @@ class Bamboo extends Transparent{
 	protected function recalculateCollisionBoxes() : array{
 		//this places the BB at the northwest corner, not the center
 		$inset = 1 - (($this->thick ? 3 : 2) / 16);
-		return [AxisAlignedBB::one()->trim(Facing::SOUTH, $inset)->trim(Facing::EAST, $inset)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::SOUTH, $inset)->trimmedCopy(Facing::EAST, $inset)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -138,7 +138,7 @@ class Bamboo extends Transparent{
 		return $top;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer){
 			$top = $this->seekToTop();
 			if($top->grow(self::getMaxHeight($top->position->getFloorX(), $top->position->getFloorZ()), mt_rand(1, 2), $player)){

src/block/BambooSapling.php

@@ -61,7 +61,7 @@ final class BambooSapling extends Flowable{
 			$supportBlock->hasTypeTag(BlockTypeTags::SAND);
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer || $item instanceof ItemBamboo){
 			if($this->grow($player)){
 				$item->pop();

src/block/Barrel.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\tile\Barrel as TileBarrel;
+use pocketmine\block\utils\AnyFacing;
 use pocketmine\block\utils\AnyFacingTrait;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Item;
@@ -33,13 +34,13 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use function abs;
 
-class Barrel extends Opaque{
+class Barrel extends Opaque implements AnyFacing{
 	use AnyFacingTrait;
 
 	protected bool $open = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->facing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->open);
 	}
 
@@ -53,7 +54,7 @@ class Barrel extends Opaque{
 		return $this;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
 			if(abs($player->getPosition()->x - $this->position->x) < 2 && abs($player->getPosition()->z - $this->position->z) < 2){
 				$y = $player->getEyePos()->y;
@@ -73,7 +74,7 @@ class Barrel extends Opaque{
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			$barrel = $this->position->getWorld()->getTile($this->position);
 			if($barrel instanceof TileBarrel){

src/block/BaseBanner.php

@@ -25,18 +25,20 @@ namespace pocketmine\block;
 
 use pocketmine\block\tile\Banner as TileBanner;
 use pocketmine\block\utils\BannerPatternLayer;
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\item\Banner as ItemBanner;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use function assert;
 use function count;
 
-abstract class BaseBanner extends Transparent{
+abstract class BaseBanner extends Transparent implements Colored{
 	use ColoredTrait;
 
 	/**
@@ -49,6 +51,10 @@ abstract class BaseBanner extends Transparent{
 		parent::readStateFromWorld();
 		$tile = $this->position->getWorld()->getTile($this->position);
 		if($tile instanceof TileBanner){
+			if($tile->getType() === TileBanner::TYPE_OMINOUS){
+				//illager banner is implemented as a separate block, as it doesn't support base color or custom patterns
+				return $this->getOminousVersion();
+			}
 			$this->color = $tile->getBaseColor();
 			$this->setPatterns($tile->getPatterns());
 		}
@@ -56,6 +62,13 @@ abstract class BaseBanner extends Transparent{
 		return $this;
 	}
 
+	/**
+	 * TODO: make this abstract in PM6 (BC break)
+	 */
+	protected function getOminousVersion() : Block{
+		return VanillaBlocks::AIR();
+	}
+
 	public function writeStateToWorld() : void{
 		parent::writeStateToWorld();
 		$tile = $this->position->getWorld()->getTile($this->position);
@@ -100,7 +113,7 @@ abstract class BaseBanner extends Transparent{
 		return [];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -108,7 +121,7 @@ abstract class BaseBanner extends Transparent{
 		return $block->isSolid();
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if(!$this->canBeSupportedBy($blockReplace->getSide($this->getSupportingFace()))){
 			return false;
 		}
@@ -120,7 +133,7 @@ abstract class BaseBanner extends Transparent{
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
-	abstract protected function getSupportingFace() : int;
+	abstract protected function getSupportingFace() : Facing;
 
 	public function onNearbyBlockChange() : void{
 		if(!$this->canBeSupportedBy($this->getSide($this->getSupportingFace()))){

src/block/BaseBigDripleaf.php

@@ -23,6 +23,8 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\StructureGrowEvent;
@@ -33,7 +35,7 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
-abstract class BaseBigDripleaf extends Transparent{
+abstract class BaseBigDripleaf extends Transparent implements HorizontalFacing{
 	use HorizontalFacingTrait;
 
 	abstract protected function isHead() : bool;
@@ -56,13 +58,13 @@ abstract class BaseBigDripleaf extends Transparent{
 		}
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$block = $blockReplace->getSide(Facing::DOWN);
 		if(!$this->canBeSupportedBy($block, true)){
 			return false;
 		}
 		if($player !== null){
-			$this->facing = Facing::opposite($player->getHorizontalFacing());
+			$this->facing = HorizontalFacingOption::fromFacing(Facing::opposite($player->getHorizontalFacing()));
 		}
 		if($block instanceof BaseBigDripleaf){
 			$this->facing = $block->facing;
@@ -71,7 +73,7 @@ abstract class BaseBigDripleaf extends Transparent{
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer && $this->grow($player)){
 			$item->pop();
 			return true;
@@ -130,7 +132,7 @@ abstract class BaseBigDripleaf extends Transparent{
 		return 100;
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 }

src/block/BaseCake.php

@@ -36,7 +36,7 @@ use pocketmine\player\Player;
 abstract class BaseCake extends Transparent implements FoodSource{
 	use StaticSupportTrait;
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -44,7 +44,7 @@ abstract class BaseCake extends Transparent implements FoodSource{
 		return $block->getSide(Facing::DOWN)->getTypeId() !== BlockTypeIds::AIR;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player !== null){
 			return $player->consumeObject($this);
 		}

src/block/BaseCoral.php

@@ -24,12 +24,14 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockEventHelper;
+use pocketmine\block\utils\CoralMaterial;
 use pocketmine\block\utils\CoralTypeTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use function mt_rand;
 
-abstract class BaseCoral extends Transparent{
+abstract class BaseCoral extends Transparent implements CoralMaterial{
 	use CoralTypeTrait;
 
 	public function onNearbyBlockChange() : void{
@@ -71,7 +73,7 @@ abstract class BaseCoral extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{ return []; }
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 }

src/block/BaseOminousBanner.php

@@ -0,0 +1,91 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+ */
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\block\tile\Banner as TileBanner;
+use pocketmine\block\utils\DyeColor;
+use pocketmine\block\utils\SupportType;
+use pocketmine\item\Item;
+use pocketmine\item\VanillaItems;
+use pocketmine\math\Facing;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\BlockTransaction;
+use function assert;
+
+abstract class BaseOminousBanner extends Transparent{
+
+	public function writeStateToWorld() : void{
+		parent::writeStateToWorld();
+		$tile = $this->position->getWorld()->getTile($this->position);
+		assert($tile instanceof TileBanner);
+		$tile->setBaseColor(DyeColor::WHITE);
+		$tile->setPatterns([]);
+		$tile->setType(TileBanner::TYPE_OMINOUS);
+	}
+
+	public function isSolid() : bool{
+		return false;
+	}
+
+	public function getMaxStackSize() : int{
+		return 16;
+	}
+
+	public function getFuelTime() : int{
+		return 300;
+	}
+
+	protected function recalculateCollisionBoxes() : array{
+		return [];
+	}
+
+	public function getSupportType(Facing $facing) : SupportType{
+		return SupportType::NONE;
+	}
+
+	private function canBeSupportedBy(Block $block) : bool{
+		return $block->isSolid();
+	}
+
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if(!$this->canBeSupportedBy($blockReplace->getSide($this->getSupportingFace()))){
+			return false;
+		}
+
+		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+	}
+
+	abstract protected function getSupportingFace() : Facing;
+
+	public function onNearbyBlockChange() : void{
+		if(!$this->canBeSupportedBy($this->getSide($this->getSupportingFace()))){
+			$this->position->getWorld()->useBreakOn($this->position);
+		}
+	}
+
+	public function asItem() : Item{
+		return VanillaItems::OMINOUS_BANNER();
+	}
+}

src/block/BaseRail.php

@@ -37,7 +37,7 @@ use function in_array;
 
 abstract class BaseRail extends Flowable{
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($blockReplace->getAdjacentSupportType(Facing::DOWN)->hasEdgeSupport()){
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
@@ -89,8 +89,9 @@ abstract class BaseRail extends Flowable{
 
 		/** @var int $connection */
 		foreach($this->getCurrentShapeConnections() as $connection){
-			$other = $this->getSide($connection & ~RailConnectionInfo::FLAG_ASCEND);
-			$otherConnection = Facing::opposite($connection & ~RailConnectionInfo::FLAG_ASCEND);
+			$connectionFace = Facing::from($connection & ~RailConnectionInfo::FLAG_ASCEND);
+			$other = $this->getSide($connectionFace);
+			$otherConnection = Facing::opposite($connectionFace)->value;
 
 			if(($connection & RailConnectionInfo::FLAG_ASCEND) !== 0){
 				$other = $other->getSide(Facing::UP);
@@ -122,10 +123,10 @@ abstract class BaseRail extends Flowable{
 			case 0:
 				//No constraints, can connect in any direction
 				$possible = [
-					Facing::NORTH => true,
-					Facing::SOUTH => true,
-					Facing::WEST => true,
-					Facing::EAST => true
+					Facing::NORTH->value => true,
+					Facing::SOUTH->value => true,
+					Facing::WEST->value => true,
+					Facing::EAST->value => true
 				];
 				foreach($possible as $p => $_){
 					$possible[$p | RailConnectionInfo::FLAG_ASCEND] = true;
@@ -146,13 +147,13 @@ abstract class BaseRail extends Flowable{
 	 * @phpstan-return array<int, true>
 	 */
 	protected function getPossibleConnectionDirectionsOneConstraint(int $constraint) : array{
-		$opposite = Facing::opposite($constraint & ~RailConnectionInfo::FLAG_ASCEND);
+		$opposite = Facing::opposite(Facing::from($constraint & ~RailConnectionInfo::FLAG_ASCEND));
 
-		$possible = [$opposite => true];
+		$possible = [$opposite->value => true];
 
 		if(($constraint & RailConnectionInfo::FLAG_ASCEND) === 0){
 			//We can slope the other way if this connection isn't already a slope
-			$possible[$opposite | RailConnectionInfo::FLAG_ASCEND] = true;
+			$possible[$opposite->value | RailConnectionInfo::FLAG_ASCEND] = true;
 		}
 
 		return $possible;
@@ -168,9 +169,10 @@ abstract class BaseRail extends Flowable{
 			$continue = false;
 
 			foreach($possible as $thisSide => $_){
-				$otherSide = Facing::opposite($thisSide & ~RailConnectionInfo::FLAG_ASCEND);
+				$thisSideEnum = Facing::from($thisSide & ~RailConnectionInfo::FLAG_ASCEND);
+				$otherSide = Facing::opposite($thisSideEnum)->value;
 
-				$other = $this->getSide($thisSide & ~RailConnectionInfo::FLAG_ASCEND);
+				$other = $this->getSide($thisSideEnum);
 
 				if(($thisSide & RailConnectionInfo::FLAG_ASCEND) !== 0){
 					$other = $other->getSide(Facing::UP);
@@ -212,7 +214,7 @@ abstract class BaseRail extends Flowable{
 	 */
 	private function setConnections(array $connections) : void{
 		if(count($connections) === 1){
-			$connections[] = Facing::opposite($connections[0] & ~RailConnectionInfo::FLAG_ASCEND);
+			$connections[] = Facing::opposite(Facing::from($connections[0] & ~RailConnectionInfo::FLAG_ASCEND))->value;
 		}elseif(count($connections) !== 2){
 			throw new \InvalidArgumentException("Expected exactly 2 connections, got " . count($connections));
 		}
@@ -226,7 +228,7 @@ abstract class BaseRail extends Flowable{
 			$world->useBreakOn($this->position);
 		}else{
 			foreach($this->getCurrentShapeConnections() as $connection){
-				if(($connection & RailConnectionInfo::FLAG_ASCEND) !== 0 && !$this->getSide($connection & ~RailConnectionInfo::FLAG_ASCEND)->getSupportType(Facing::UP)->hasEdgeSupport()){
+				if(($connection & RailConnectionInfo::FLAG_ASCEND) !== 0 && !$this->getSide(Facing::from($connection & ~RailConnectionInfo::FLAG_ASCEND))->getSupportType(Facing::UP)->hasEdgeSupport()){
 					$world->useBreakOn($this->position);
 					break;
 				}

src/block/BaseSign.php

@@ -27,6 +27,7 @@ use pocketmine\block\tile\Sign as TileSign;
 use pocketmine\block\utils\DyeColor;
 use pocketmine\block\utils\SignText;
 use pocketmine\block\utils\SupportType;
+use pocketmine\block\utils\WoodMaterial;
 use pocketmine\block\utils\WoodType;
 use pocketmine\block\utils\WoodTypeTrait;
 use pocketmine\color\Color;
@@ -34,6 +35,7 @@ use pocketmine\event\block\SignChangeEvent;
 use pocketmine\item\Dye;
 use pocketmine\item\Item;
 use pocketmine\item\ItemTypeIds;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\utils\TextFormat;
@@ -44,7 +46,7 @@ use function array_map;
 use function assert;
 use function strlen;
 
-abstract class BaseSign extends Transparent{
+abstract class BaseSign extends Transparent implements WoodMaterial{
 	use WoodTypeTrait;
 
 	protected SignText $text;
@@ -98,11 +100,11 @@ abstract class BaseSign extends Transparent{
 		return [];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	abstract protected function getSupportingFace() : int;
+	abstract protected function getSupportingFace() : Facing;
 
 	public function onNearbyBlockChange() : void{
 		if($this->getSide($this->getSupportingFace())->getTypeId() === BlockTypeIds::AIR){
@@ -110,7 +112,7 @@ abstract class BaseSign extends Transparent{
 		}
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
 			$this->editorEntityRuntimeId = $player->getId();
 		}
@@ -159,7 +161,7 @@ abstract class BaseSign extends Transparent{
 		return true;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player === null){
 			return false;
 		}

src/block/Bed.php

@@ -24,8 +24,11 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\tile\Bed as TileBed;
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\DyeColor;
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -41,7 +44,7 @@ use pocketmine\utils\TextFormat;
 use pocketmine\world\BlockTransaction;
 use pocketmine\world\World;
 
-class Bed extends Transparent{
+class Bed extends Transparent implements Colored, HorizontalFacing{
 	use ColoredTrait;
 	use HorizontalFacingTrait;
 
@@ -49,7 +52,7 @@ class Bed extends Transparent{
 	protected bool $head = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->occupied);
 		$w->bool($this->head);
 	}
@@ -77,10 +80,10 @@ class Bed extends Transparent{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 7 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 7 / 16)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -104,8 +107,8 @@ class Bed extends Transparent{
 		return $this;
 	}
 
-	private function getOtherHalfSide() : int{
-		return $this->head ? Facing::opposite($this->facing) : $this->facing;
+	private function getOtherHalfSide() : Facing{
+		return $this->head ? Facing::opposite($this->facing->toFacing()) : $this->facing->toFacing();
 	}
 
 	public function getOtherHalf() : ?Bed{
@@ -117,7 +120,7 @@ class Bed extends Transparent{
 		return null;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player !== null){
 			$other = $this->getOtherHalf();
 			$playerPos = $player->getPosition();
@@ -170,9 +173,11 @@ class Bed extends Transparent{
 		return $entity->getMotion()->y * -3 / 4; // 2/3 in Java, according to the wiki
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($this->canBeSupportedAt($blockReplace)){
-			$this->facing = $player !== null ? $player->getHorizontalFacing() : Facing::NORTH;
+			if($player !== null){
+				$this->facing = HorizontalFacingOption::fromFacing($player->getHorizontalFacing());
+			}
 
 			$next = $this->getSide($this->getOtherHalfSide());
 			if($next->canBeReplaced() && $this->canBeSupportedAt($next)){

src/block/Bell.php

@@ -25,6 +25,8 @@ namespace pocketmine\block;
 
 use pocketmine\block\tile\Bell as TileBell;
 use pocketmine\block\utils\BellAttachmentType;
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -38,39 +40,40 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use pocketmine\world\sound\BellRingSound;
 
-final class Bell extends Transparent{
+final class Bell extends Transparent implements HorizontalFacing{
 	use HorizontalFacingTrait;
 
 	private BellAttachmentType $attachmentType = BellAttachmentType::FLOOR;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
 		$w->enum($this->attachmentType);
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 	}
 
 	protected function recalculateCollisionBoxes() : array{
+		$realFacing = $this->facing->toFacing();
 		if($this->attachmentType === BellAttachmentType::FLOOR){
 			return [
-				AxisAlignedBB::one()->squash(Facing::axis($this->facing), 1 / 4)->trim(Facing::UP, 3 / 16)
+				AxisAlignedBB::one()->squashedCopy(Facing::axis($realFacing), 1 / 4)->trimmedCopy(Facing::UP, 3 / 16)
 			];
 		}
 		if($this->attachmentType === BellAttachmentType::CEILING){
 			return [
-				AxisAlignedBB::one()->contract(1 / 4, 0, 1 / 4)->trim(Facing::DOWN, 1 / 4)
+				AxisAlignedBB::one()->contractedCopy(1 / 4, 0, 1 / 4)->trimmedCopy(Facing::DOWN, 1 / 4)
 			];
 		}
 
 		$box = AxisAlignedBB::one()
-			->squash(Facing::axis(Facing::rotateY($this->facing, true)), 1 / 4)
-			->trim(Facing::UP, 1 / 16)
-			->trim(Facing::DOWN, 1 / 4);
+			->squashedCopy(Facing::axis(Facing::rotateY($realFacing, true)), 1 / 4)
+			->trimmedCopy(Facing::UP, 1 / 16)
+			->trimmedCopy(Facing::DOWN, 1 / 4);
 
 		return [
-			$this->attachmentType === BellAttachmentType::ONE_WALL ? $box->trim($this->facing, 3 / 16) : $box
+			$this->attachmentType === BellAttachmentType::ONE_WALL ? $box->trimmedCopy($realFacing, 3 / 16) : $box
 		];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -82,23 +85,23 @@ final class Bell extends Transparent{
 		return $this;
 	}
 
-	private function canBeSupportedAt(Block $block, int $face) : bool{
+	private function canBeSupportedAt(Block $block, Facing $face) : bool{
 		return $block->getAdjacentSupportType($face) !== SupportType::NONE;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if(!$this->canBeSupportedAt($blockReplace, Facing::opposite($face))){
 			return false;
 		}
 		if($face === Facing::UP){
 			if($player !== null){
-				$this->setFacing(Facing::opposite($player->getHorizontalFacing()));
+				$this->setFacing(HorizontalFacingOption::fromFacing(Facing::opposite($player->getHorizontalFacing())));
 			}
 			$this->setAttachmentType(BellAttachmentType::FLOOR);
 		}elseif($face === Facing::DOWN){
 			$this->setAttachmentType(BellAttachmentType::CEILING);
 		}else{
-			$this->setFacing($face);
+			$this->setFacing(HorizontalFacingOption::fromFacing($face));
 			$this->setAttachmentType(
 				$this->canBeSupportedAt($blockReplace, $face) ?
 					BellAttachmentType::TWO_WALLS :
@@ -112,8 +115,8 @@ final class Bell extends Transparent{
 		foreach(match($this->attachmentType){
 			BellAttachmentType::CEILING => [Facing::UP],
 			BellAttachmentType::FLOOR => [Facing::DOWN],
-			BellAttachmentType::ONE_WALL => [Facing::opposite($this->facing)],
-			BellAttachmentType::TWO_WALLS => [$this->facing, Facing::opposite($this->facing)]
+			BellAttachmentType::ONE_WALL => [Facing::opposite($this->facing->toFacing())],
+			BellAttachmentType::TWO_WALLS => [$this->facing->toFacing(), Facing::opposite($this->facing->toFacing())]
 		} as $supportBlockDirection){
 			if(!$this->canBeSupportedAt($this, $supportBlockDirection)){
 				$this->position->getWorld()->useBreakOn($this->position);
@@ -122,7 +125,7 @@ final class Bell extends Transparent{
 		}
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player !== null){
 			$faceHit = Facing::opposite($player->getHorizontalFacing());
 			if($this->isValidFaceToRing($faceHit)){
@@ -141,7 +144,7 @@ final class Bell extends Transparent{
 		}
 	}
 
-	public function ring(int $faceHit) : void{
+	public function ring(Facing $faceHit) : void{
 		$world = $this->position->getWorld();
 		$world->addSound($this->position, new BellRingSound());
 		$tile = $world->getTile($this->position);
@@ -154,11 +157,11 @@ final class Bell extends Transparent{
 		return [$this->asItem()];
 	}
 
-	private function isValidFaceToRing(int $faceHit) : bool{
+	private function isValidFaceToRing(Facing $faceHit) : bool{
 		return match($this->attachmentType){
 			BellAttachmentType::CEILING => true,
-			BellAttachmentType::FLOOR => Facing::axis($faceHit) === Facing::axis($this->facing),
-			BellAttachmentType::ONE_WALL, BellAttachmentType::TWO_WALLS => $faceHit === Facing::rotateY($this->facing, false) || $faceHit === Facing::rotateY($this->facing, true),
+			BellAttachmentType::FLOOR => Facing::axis($faceHit) === Facing::axis($this->facing->toFacing()),
+			BellAttachmentType::ONE_WALL, BellAttachmentType::TWO_WALLS => $faceHit === Facing::rotateY($this->facing->toFacing(), false) || $faceHit === Facing::rotateY($this->facing->toFacing(), true),
 		};
 	}
 }

src/block/BigDripleafHead.php

@@ -80,8 +80,8 @@ class BigDripleafHead extends BaseBigDripleaf{
 		if(!$entity instanceof Projectile && $this->leafState === DripleafState::STABLE){
 			//the entity must be standing on top of the leaf - do not collapse if the entity is standing underneath
 			$intersection = AxisAlignedBB::one()
-				->offset($this->position->x, $this->position->y, $this->position->z)
-				->trim(Facing::DOWN, 1 - $this->getLeafTopOffset());
+				->offsetCopy($this->position->x, $this->position->y, $this->position->z)
+				->trimmedCopy(Facing::DOWN, 1 - $this->getLeafTopOffset());
 			if($entity->getBoundingBox()->intersectsWith($intersection)){
 				$this->setTiltAndScheduleTick(DripleafState::UNSTABLE);
 				return false;
@@ -116,8 +116,8 @@ class BigDripleafHead extends BaseBigDripleaf{
 		if($this->leafState !== DripleafState::FULL_TILT){
 			return [
 				AxisAlignedBB::one()
-					->trim(Facing::DOWN, 11 / 16)
-					->trim(Facing::UP, $this->getLeafTopOffset())
+					->trimmedCopy(Facing::DOWN, 11 / 16)
+					->trimmedCopy(Facing::UP, $this->getLeafTopOffset())
 			];
 		}
 		return [];

src/block/Block.php

@@ -65,10 +65,10 @@ class Block{
 
 	/**
 	 * @internal
-	 * Hardcoded int is `Binary::readLong(hash('xxh3', Binary::writeLLong(BlockTypeIds::AIR), binary: true))`
+	 * Hardcoded int is `Binary::readLong(hash('xxh3', Binary::writeLLong(BlockTypeIds::AIR_TYPE_NUMBER), binary: true))`
 	 * TODO: it would be much easier if we could just make this 0 or some other easy value
 	 */
-	public const EMPTY_STATE_ID = (BlockTypeIds::AIR << self::INTERNAL_STATE_DATA_BITS) | (-7482769108513497636 & self::INTERNAL_STATE_DATA_MASK);
+	public const EMPTY_STATE_ID = (BlockIdentifier::AIR_TYPE_NUMBER << self::INTERNAL_STATE_DATA_BITS) | (-7482769108513497636 & self::INTERNAL_STATE_DATA_MASK);
 
 	protected BlockIdentifier $idInfo;
 	protected string $fallbackName;
@@ -97,7 +97,7 @@ class Block{
 	 * The type ID is included in the XOR mask. This is not necessary to improve distribution, but it reduces the number
 	 * of operations required to compute the state ID (micro optimization).
 	 */
-	private static function computeStateIdXorMask(int $typeId) : int{
+	public static function computeStateIdXorMask(int $typeId) : int{
 		return
 			$typeId << self::INTERNAL_STATE_DATA_BITS |
 			(Binary::readLong(hash('xxh3', Binary::writeLLong($typeId), binary: true)) & self::INTERNAL_STATE_DATA_MASK);
@@ -120,7 +120,7 @@ class Block{
 		$this->describeBlockOnlyState($calculator);
 		$this->requiredBlockOnlyStateDataBits = $calculator->getBitsUsed();
 
-		$this->stateIdXorMask = self::computeStateIdXorMask($idInfo->getBlockTypeId());
+		$this->stateIdXorMask = self::computeStateIdXorMask($idInfo->getBlockTypeNumber());
 
 		//this must be done last, otherwise the defaultState could have uninitialized fields
 		$defaultState = clone $this;
@@ -156,7 +156,7 @@ class Block{
 	 *
 	 * @see BlockTypeIds
 	 */
-	public function getTypeId() : int{
+	public function getTypeId() : string{
 		return $this->idInfo->getBlockTypeId();
 	}
 
@@ -424,7 +424,7 @@ class Block{
 	 * Returns whether this block can replace the given block in the given placement conditions.
 	 * This is used to allow slabs of the same type to combine into double slabs.
 	 */
-	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, int $face, bool $isClickedBlock) : bool{
+	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, Facing $face, bool $isClickedBlock) : bool{
 		return $blockReplace->canBeReplaced();
 	}
 
@@ -436,13 +436,13 @@ class Block{
 	 * @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 Facing           $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{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$tx->addBlock($blockReplace->position, $this);
 		return true;
 	}
@@ -524,7 +524,7 @@ class Block{
 	 * @param Vector3 $clickVector    Exact position where the click occurred, relative to the block's integer position
 	 * @param Item[]  &$returnedItems Items to be added to the target's inventory (or dropped, if the inventory is full)
 	 */
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		return false;
 	}
 
@@ -533,7 +533,7 @@ class Block{
 	 *
 	 * @return bool if an action took place, prevents starting to break the block if true.
 	 */
-	public function onAttack(Item $item, int $face, ?Player $player = null) : bool{
+	public function onAttack(Item $item, Facing $face, ?Player $player = null) : bool{
 		return false;
 	}
 
@@ -770,10 +770,10 @@ class Block{
 	 *
 	 * @return Block
 	 */
-	public function getSide(int $side, int $step = 1){
+	public function getSide(Facing $side, int $step = 1){
 		$position = $this->position;
 		if($position->isValid()){
-			[$dx, $dy, $dz] = Facing::OFFSET[$side] ?? [0, 0, 0];
+			[$dx, $dy, $dz] = Facing::OFFSET[$side->value] ?? [0, 0, 0];
 			return $position->getWorld()->getBlockAt(
 				$position->x + ($dx * $step),
 				$position->y + ($dy * $step),
@@ -793,7 +793,7 @@ class Block{
 	public function getHorizontalSides() : \Generator{
 		$world = $this->position->getWorld();
 		foreach(Facing::HORIZONTAL as $facing){
-			[$dx, $dy, $dz] = Facing::OFFSET[$facing];
+			[$dx, $dy, $dz] = Facing::OFFSET[$facing->value];
 			//TODO: yield Facing as the key?
 			yield $world->getBlockAt(
 				$this->position->x + $dx,
@@ -914,11 +914,12 @@ class Block{
 	 */
 	final public function getCollisionBoxes() : array{
 		if($this->collisionBoxes === null){
-			$this->collisionBoxes = $this->recalculateCollisionBoxes();
+			$collisionBoxes = $this->recalculateCollisionBoxes();
 			$extraOffset = $this->getModelPositionOffset();
 			$offset = $extraOffset !== null ? $this->position->addVector($extraOffset) : $this->position;
-			foreach($this->collisionBoxes as $bb){
-				$bb->offset($offset->x, $offset->y, $offset->z);
+			$this->collisionBoxes = [];
+			foreach($collisionBoxes as $bb){
+				$this->collisionBoxes[] = $bb->offsetCopy($offset->x, $offset->y, $offset->z);
 			}
 		}
 
@@ -945,11 +946,11 @@ class Block{
 	 * Returns the type of support that the block can provide on the given face. This is used to determine whether
 	 * blocks placed on the given face can be supported by this block.
 	 */
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::FULL;
 	}
 
-	protected function getAdjacentSupportType(int $facing) : SupportType{
+	protected function getAdjacentSupportType(Facing $facing) : SupportType{
 		return $this->getSide($facing)->getSupportType(Facing::opposite($facing));
 	}
 

src/block/BlockBreakInfo.php

@@ -73,7 +73,7 @@ class BlockBreakInfo{
 		return new self(0.0, $toolType, $toolHarvestLevel, 0.0);
 	}
 
-	public static function indestructible(float $blastResistance = 18000000.0) : self{
+	public static function indestructible(float $blastResistance = 18000003.75) : self{
 		return new self(-1.0, BlockToolType::NONE, 0, $blastResistance);
 	}
 

src/block/BlockIdentifier.php

@@ -27,22 +27,27 @@ use pocketmine\block\tile\Tile;
 use pocketmine\utils\Utils;
 
 class BlockIdentifier{
+	private int $typeNumber;
+
 	/**
 	 * @phpstan-param class-string<Tile>|null $tileClass
 	 */
 	public function __construct(
-		private int $blockTypeId,
+		private string $blockTypeId,
 		private ?string $tileClass = null
 	){
-		if($blockTypeId < 0){
-			throw new \InvalidArgumentException("Block type ID may not be negative");
-		}
+		$this->typeNumber = self::lookupTypeNumberFromTypeId($this->blockTypeId);
 		if($tileClass !== null){
 			Utils::testValidInstance($tileClass, Tile::class);
 		}
 	}
 
-	public function getBlockTypeId() : int{ return $this->blockTypeId; }
+	public function getBlockTypeId() : string{ return $this->blockTypeId; }
+
+	/**
+	 * @internal
+	 */
+	public function getBlockTypeNumber() : int{ return $this->typeNumber; }
 
 	/**
 	 * @phpstan-return class-string<Tile>|null
@@ -50,4 +55,52 @@ class BlockIdentifier{
 	public function getTileClass() : ?string{
 		return $this->tileClass;
 	}
+
+	public const AIR_TYPE_NUMBER = 10000;
+
+	private static int $nextTypeNumber = self::AIR_TYPE_NUMBER + 1; //fixed ID reserved for air, for Block::EMPTY_STATE_ID
+
+	/**
+	 * @var int[]
+	 * @phpstan-var array<string, int>
+	 */
+	private static $typeIdToTypeNumber = [];
+	/**
+	 * @var string[]
+	 * @phpstan-var array<int, string>
+	 */
+	private static $typeNumberToTypeId = [];
+
+	/**
+	 * @var int[]
+	 * @phpstan-var array<int, int>
+	 */
+	private static $typeIdXorMasks = [];
+
+	public static function firstUnusedTypeNumber() : int{
+		return self::$nextTypeNumber;
+	}
+
+	private static function claimTypeId(string $typeId) : int{
+		if(isset(self::$typeIdToTypeNumber[$typeId])){
+			throw new \InvalidArgumentException("Type ID \"$typeId\" has already been claimed");
+		}
+		$typeNumber = $typeId === BlockTypeIds::AIR ? self::AIR_TYPE_NUMBER : self::$nextTypeNumber++;
+		self::$typeIdToTypeNumber[$typeId] = $typeNumber;
+		self::$typeNumberToTypeId[$typeNumber] = $typeId;
+		self::$typeIdXorMasks[$typeNumber] = Block::computeStateIdXorMask($typeNumber);
+		return $typeNumber;
+	}
+
+	public static function lookupTypeNumberFromTypeId(string $typeId) : int{
+		return self::$typeIdToTypeNumber[$typeId] ??= self::claimTypeId($typeId);
+	}
+
+	public static function stateIdXorMask(int $typeId) : int{
+		return self::$typeIdXorMasks[$typeId];
+	}
+
+	public static function lookupTypeIdFromTypeNumber(int $typeNumber) : string{
+		return self::$typeNumberToTypeId[$typeNumber] ?? throw new \InvalidArgumentException("Unknown type number $typeNumber (probably not registered on this thread?)");
+	}
 }

src/block/BlockTypeTags.php

@@ -31,4 +31,5 @@ final class BlockTypeTags{
 	public const SAND = self::PREFIX . "sand";
 	public const POTTABLE_PLANTS = self::PREFIX . "pottable";
 	public const FIRE = self::PREFIX . "fire";
+	public const HANGING_SIGN = self::PREFIX . "hanging_sign";
 }

src/block/BoneBlock.php

@@ -23,8 +23,9 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\PillarRotation;
 use pocketmine\block\utils\PillarRotationTrait;
 
-class BoneBlock extends Opaque{
+class BoneBlock extends Opaque implements PillarRotation{
 	use PillarRotationTrait;
 }

src/block/BrewingStand.php

@@ -51,17 +51,17 @@ class BrewingStand extends Transparent{
 	protected function recalculateCollisionBoxes() : array{
 		return [
 			//bottom slab part - in PC this is also inset on X/Z by 1/16, but Bedrock sucks
-			AxisAlignedBB::one()->trim(Facing::UP, 7 / 8),
+			AxisAlignedBB::one()->trimmedCopy(Facing::UP, 7 / 8),
 
 			//center post
 			AxisAlignedBB::one()
-				->squash(Axis::X, 7 / 16)
-				->squash(Axis::Z, 7 / 16)
-				->trim(Facing::UP, 1 / 8)
+				->squashedCopy(Axis::X, 7 / 16)
+				->squashedCopy(Axis::Z, 7 / 16)
+				->trimmedCopy(Facing::UP, 1 / 8)
 		];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -95,7 +95,7 @@ class BrewingStand extends Transparent{
 		return $this;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			$stand = $this->position->getWorld()->getTile($this->position);
 			if($stand instanceof TileBrewingStand && $stand->canOpenWith($item->getCustomName())){

src/block/Button.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\AnyFacing;
 use pocketmine\block\utils\AnyFacingTrait;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Item;
@@ -33,13 +34,13 @@ use pocketmine\world\BlockTransaction;
 use pocketmine\world\sound\RedstonePowerOffSound;
 use pocketmine\world\sound\RedstonePowerOnSound;
 
-abstract class Button extends Flowable{
+abstract class Button extends Flowable implements AnyFacing{
 	use AnyFacingTrait;
 
 	protected bool $pressed = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->facing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->pressed);
 	}
 
@@ -51,7 +52,7 @@ abstract class Button extends Flowable{
 		return $this;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($this->canBeSupportedAt($blockReplace, $face)){
 			$this->facing = $face;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
@@ -61,7 +62,7 @@ abstract class Button extends Flowable{
 
 	abstract protected function getActivationTime() : int;
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if(!$this->pressed){
 			$this->pressed = true;
 			$world = $this->position->getWorld();
@@ -88,7 +89,7 @@ abstract class Button extends Flowable{
 		}
 	}
 
-	private function canBeSupportedAt(Block $block, int $face) : bool{
+	private function canBeSupportedAt(Block $block, Facing $face) : bool{
 		return $block->getAdjacentSupportType(Facing::opposite($face))->hasCenterSupport();
 	}
 }

src/block/Cactus.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\BlockEventHelper;
 use pocketmine\block\utils\StaticSupportTrait;
@@ -33,7 +34,7 @@ use pocketmine\event\entity\EntityDamageEvent;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 
-class Cactus extends Transparent{
+class Cactus extends Transparent implements Ageable{
 	use AgeableTrait;
 	use StaticSupportTrait;
 
@@ -45,10 +46,10 @@ class Cactus extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
 		$shrinkSize = 1 / 16;
-		return [AxisAlignedBB::one()->contract($shrinkSize, 0, $shrinkSize)->trim(Facing::UP, $shrinkSize)];
+		return [AxisAlignedBB::one()->contractedCopy($shrinkSize, 0, $shrinkSize)->trimmedCopy(Facing::UP, $shrinkSize)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 

src/block/Cake.php

@@ -43,9 +43,9 @@ class Cake extends BaseCake{
 	protected function recalculateCollisionBoxes() : array{
 		return [
 			AxisAlignedBB::one()
-				->contract(1 / 16, 0, 1 / 16)
-				->trim(Facing::UP, 0.5)
-				->trim(Facing::WEST, $this->bites / 8)
+				->contractedCopy(1 / 16, 0, 1 / 16)
+				->trimmedCopy(Facing::UP, 0.5)
+				->trimmedCopy(Facing::WEST, $this->bites / 8)
 		];
 	}
 
@@ -60,7 +60,7 @@ class Cake extends BaseCake{
 		return $this;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($this->bites === 0 && $item instanceof ItemBlock){
 			$block = $item->getBlock();
 			$resultBlock = null;

src/block/CakeWithCandle.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\CandleTrait;
+use pocketmine\block\utils\Lightable;
 use pocketmine\entity\Living;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
@@ -31,7 +32,7 @@ use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
-class CakeWithCandle extends BaseCake{
+class CakeWithCandle extends BaseCake implements Lightable{
 	use CandleTrait {
 		onInteract as onInteractCandle;
 	}
@@ -39,8 +40,8 @@ class CakeWithCandle extends BaseCake{
 	protected function recalculateCollisionBoxes() : array{
 		return [
 			AxisAlignedBB::one()
-				->contract(1 / 16, 0, 1 / 16)
-				->trim(Facing::UP, 0.5) //TODO: not sure if the candle affects height
+				->contractedCopy(1 / 16, 0, 1 / 16)
+				->trimmedCopy(Facing::UP, 0.5) //TODO: not sure if the candle affects height
 		];
 	}
 
@@ -48,7 +49,7 @@ class CakeWithCandle extends BaseCake{
 		return VanillaBlocks::CANDLE();
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($this->lit && $face !== Facing::UP){
 			return true;
 		}

src/block/CakeWithDyedCandle.php

@@ -23,10 +23,11 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\DyeColor;
 
-class CakeWithDyedCandle extends CakeWithCandle{
+class CakeWithDyedCandle extends CakeWithCandle implements Colored{
 	use ColoredTrait;
 
 	public function __construct(BlockIdentifier $idInfo, string $name, BlockTypeInfo $typeInfo){

src/block/Campfire.php

@@ -25,7 +25,10 @@ namespace pocketmine\block;
 
 use pocketmine\block\inventory\CampfireInventory;
 use pocketmine\block\tile\Campfire as TileCampfire;
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\Lightable;
 use pocketmine\block\utils\LightableTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\crafting\FurnaceRecipe;
@@ -59,7 +62,7 @@ use function count;
 use function min;
 use function mt_rand;
 
-class Campfire extends Transparent{
+class Campfire extends Transparent implements Lightable, HorizontalFacing{
 	use HorizontalFacingTrait{
 		HorizontalFacingTrait::describeBlockOnlyState as encodeFacingState;
 	}
@@ -125,12 +128,12 @@ class Campfire extends Transparent{
 		];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 9 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 9 / 16)];
 	}
 
 	/**
@@ -169,18 +172,18 @@ class Campfire extends Transparent{
 		return $this->cookingTimes[$slot] ?? 0;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($this->getSide(Facing::DOWN) instanceof Campfire){
 			return false;
 		}
 		if($player !== null){
-			$this->facing = $player->getHorizontalFacing();
+			$this->facing = HorizontalFacingOption::fromFacing($player->getHorizontalFacing());
 		}
 		$this->lit = true;
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if(!$this->lit){
 			if($item->getTypeId() === ItemTypeIds::FIRE_CHARGE){
 				$item->pop();

src/block/Candle.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\CandleTrait;
+use pocketmine\block\utils\Lightable;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Item;
@@ -35,7 +36,7 @@ use pocketmine\player\Player;
 use pocketmine\utils\AssumptionFailedError;
 use pocketmine\world\BlockTransaction;
 
-class Candle extends Transparent{
+class Candle extends Transparent implements Lightable{
 	use CandleTrait {
 		describeBlockOnlyState as encodeLitState;
 		getLightLevel as getBaseLightLevel;
@@ -70,27 +71,27 @@ class Candle extends Transparent{
 		return [
 			(match($this->count){
 				1 => AxisAlignedBB::one()
-					->squash(Axis::X, 7 / 16)
-					->squash(Axis::Z, 7 / 16),
+					->squashedCopy(Axis::X, 7 / 16)
+					->squashedCopy(Axis::Z, 7 / 16),
 				2 => AxisAlignedBB::one()
-					->squash(Axis::X, 5 / 16)
-					->trim(Facing::NORTH, 7 / 16) //0.3 thick on the Z axis
-					->trim(Facing::SOUTH, 6 / 16),
+					->squashedCopy(Axis::X, 5 / 16)
+					->trimmedCopy(Facing::NORTH, 7 / 16) //0.3 thick on the Z axis
+					->trimmedCopy(Facing::SOUTH, 6 / 16),
 				3 => AxisAlignedBB::one()
-					->trim(Facing::WEST, 5 / 16)
-					->trim(Facing::EAST, 6 / 16)
-					->trim(Facing::NORTH, 6 / 16)
-					->trim(Facing::SOUTH, 5 / 16),
+					->trimmedCopy(Facing::WEST, 5 / 16)
+					->trimmedCopy(Facing::EAST, 6 / 16)
+					->trimmedCopy(Facing::NORTH, 6 / 16)
+					->trimmedCopy(Facing::SOUTH, 5 / 16),
 				4 => AxisAlignedBB::one()
-					->squash(Axis::X, 5 / 16)
-					->trim(Facing::NORTH, 5 / 16)
-					->trim(Facing::SOUTH, 6 / 16),
+					->squashedCopy(Axis::X, 5 / 16)
+					->trimmedCopy(Facing::NORTH, 5 / 16)
+					->trimmedCopy(Facing::SOUTH, 6 / 16),
 				default => throw new AssumptionFailedError("Unreachable")
-			})->trim(Facing::UP, 10 / 16)
+			})->trimmedCopy(Facing::UP, 10 / 16)
 		];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -98,12 +99,12 @@ class Candle extends Transparent{
 		return $block instanceof Candle && $block->hasSameTypeId($this) ? $block : null;
 	}
 
-	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, int $face, bool $isClickedBlock) : bool{
+	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, Facing $face, bool $isClickedBlock) : bool{
 		$candle = $this->getCandleIfCompatibleType($blockReplace);
 		return $candle !== null ? $candle->count < self::MAX_COUNT : parent::canBePlacedAt($blockReplace, $clickVector, $face, $isClickedBlock);
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if(!$blockReplace->getAdjacentSupportType(Facing::DOWN)->hasCenterSupport()){
 			return false;
 		}

src/block/Carpet.php

@@ -23,12 +23,13 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\StaticSupportTrait;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 
-class Carpet extends Flowable{
+class Carpet extends Flowable implements Colored{
 	use ColoredTrait;
 	use StaticSupportTrait;
 
@@ -37,7 +38,7 @@ class Carpet extends Flowable{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 15 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 15 / 16)];
 	}
 
 	private function canBeSupportedAt(Block $block) : bool{

src/block/CartographyTable.php

@@ -25,12 +25,13 @@ namespace pocketmine\block;
 
 use pocketmine\block\inventory\CartographyTableInventory;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
 final class CartographyTable extends Opaque{
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player !== null){
 			$player->setCurrentWindow(new CartographyTableInventory($this->position));
 		}

src/block/CarvedPumpkin.php

@@ -24,7 +24,8 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 
-class CarvedPumpkin extends Opaque{
+class CarvedPumpkin extends Opaque implements HorizontalFacing{
 	use FacesOppositePlacingPlayerTrait;
 }

src/block/Cauldron.php

@@ -51,16 +51,16 @@ final class Cauldron extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
 		$result = [
-			AxisAlignedBB::one()->trim(Facing::UP, 11 / 16) //bottom of the cauldron
+			AxisAlignedBB::one()->trimmedCopy(Facing::UP, 11 / 16) //bottom of the cauldron
 		];
 
 		foreach(Facing::HORIZONTAL as $f){ //add the frame parts around the bowl
-			$result[] = AxisAlignedBB::one()->trim($f, 14 / 16);
+			$result[] = AxisAlignedBB::one()->trimmedCopy($f, 14 / 16);
 		}
 		return $result;
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return $facing === Facing::UP ? SupportType::EDGE : SupportType::NONE;
 	}
 
@@ -75,7 +75,7 @@ final class Cauldron extends Transparent{
 		$returnedItems[] = $returnedItem;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item->getTypeId() === ItemTypeIds::WATER_BUCKET){
 			$this->fill(FillableCauldron::MAX_FILL_LEVEL, VanillaBlocks::WATER_CAULDRON(), $item, VanillaItems::BUCKET(), $returnedItems);
 		}elseif($item->getTypeId() === ItemTypeIds::LAVA_BUCKET){

src/block/CaveVines.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\BlockEventHelper;
 use pocketmine\block\utils\StaticSupportTrait;
@@ -39,7 +40,7 @@ use pocketmine\world\BlockTransaction;
 use pocketmine\world\sound\GlowBerriesPickSound;
 use function mt_rand;
 
-class CaveVines extends Flowable{
+class CaveVines extends Flowable implements Ageable{
 	use AgeableTrait;
 	use StaticSupportTrait;
 
@@ -83,12 +84,12 @@ class CaveVines extends Flowable{
 		return $supportBlock->getSupportType(Facing::DOWN) === SupportType::FULL || $supportBlock->hasSameTypeId($this);
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->age = mt_rand(0, self::MAX_AGE);
 		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($this->berries){
 			$this->position->getWorld()->dropItem($this->position, $this->asItem());
 			$this->position->getWorld()->addSound($this->position, new GlowBerriesPickSound());
@@ -158,7 +159,7 @@ class CaveVines extends Flowable{
 		return VanillaItems::GLOW_BERRIES();
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 }

src/block/CeilingCenterHangingSign.php

@@ -0,0 +1,61 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+ */
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\block\utils\SignLikeRotation;
+use pocketmine\block\utils\SignLikeRotationTrait;
+use pocketmine\block\utils\StaticSupportTrait;
+use pocketmine\item\Item;
+use pocketmine\math\Facing;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\BlockTransaction;
+
+final class CeilingCenterHangingSign extends BaseSign implements SignLikeRotation{
+	use SignLikeRotationTrait;
+	use StaticSupportTrait;
+
+	protected function getSupportingFace() : Facing{
+		return Facing::UP;
+	}
+
+	//TODO: duplicated code :(
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if($face !== Facing::DOWN){
+			return false;
+		}
+
+		if($player !== null){
+			$this->rotation = self::getRotationFromYaw($player->getLocation()->getYaw());
+		}
+		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+	}
+
+	private function canBeSupportedAt(Block $block) : bool{
+		$supportBlock = $block->getSide(Facing::UP);
+		return
+			$supportBlock->getSupportType(Facing::DOWN)->hasCenterSupport() ||
+			$supportBlock->hasTypeTag(BlockTypeTags::HANGING_SIGN);
+	}
+}

src/block/CeilingEdgesHangingSign.php

@@ -0,0 +1,69 @@
+<?php
+
+/*
+ *
+ *  ____            _        _   __  __ _                  __  __ ____
+ * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
+ * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
+ * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
+ * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * @author PocketMine Team
+ * @link http://www.pocketmine.net/
+ *
+ *
+ */
+
+declare(strict_types=1);
+
+namespace pocketmine\block;
+
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
+use pocketmine\block\utils\HorizontalFacingTrait;
+use pocketmine\block\utils\SupportType;
+use pocketmine\item\Item;
+use pocketmine\math\Facing;
+use pocketmine\math\Vector3;
+use pocketmine\player\Player;
+use pocketmine\world\BlockTransaction;
+
+final class CeilingEdgesHangingSign extends BaseSign implements HorizontalFacing{
+	use HorizontalFacingTrait;
+
+	protected function getSupportingFace() : Facing{
+		return Facing::UP;
+	}
+
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if($face !== Facing::DOWN){
+			return false;
+		}
+		if($player !== null){
+			$this->facing = HorizontalFacingOption::fromFacing(Facing::opposite($player->getHorizontalFacing()));
+		}
+		if(!$this->canBeSupportedAt($blockReplace)){
+			return false;
+		}
+
+		return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
+	}
+
+	public function onNearbyBlockChange() : void{
+		if(!$this->canBeSupportedAt($this)){
+			$this->position->getWorld()->useBreakOn($this->position);
+		}
+	}
+
+	private function canBeSupportedAt(Block $block) : bool{
+		$supportBlock = $block->getSide(Facing::UP);
+		return
+			$supportBlock->getSupportType(Facing::DOWN) === SupportType::FULL ||
+			(($supportBlock instanceof WallHangingSign || $supportBlock instanceof CeilingEdgesHangingSign) && Facing::axis($supportBlock->getFacing()->toFacing()) === Facing::axis($this->facing->toFacing()));
+	}
+}

src/block/Chain.php

@@ -23,16 +23,17 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\PillarRotation;
 use pocketmine\block\utils\PillarRotationTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\math\Axis;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 
-final class Chain extends Transparent{
+final class Chain extends Transparent implements PillarRotation{
 	use PillarRotationTrait;
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return $this->axis === Axis::Y && Facing::axis($facing) === Axis::Y ? SupportType::CENTER : SupportType::NONE;
 	}
 
@@ -40,7 +41,7 @@ final class Chain extends Transparent{
 		$bb = AxisAlignedBB::one();
 		foreach([Axis::Y, Axis::Z, Axis::X] as $axis){
 			if($axis !== $this->axis){
-				$bb->squash($axis, 13 / 32);
+				$bb = $bb->squashedCopy($axis, 13 / 32);
 			}
 		}
 		return [$bb];

src/block/ChemistryTable.php

@@ -24,14 +24,16 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
-final class ChemistryTable extends Opaque{
+final class ChemistryTable extends Opaque implements HorizontalFacing{
 	use FacesOppositePlacingPlayerTrait;
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		//TODO
 		return false;
 	}

src/block/Chest.php

@@ -25,6 +25,7 @@ namespace pocketmine\block;
 
 use pocketmine\block\tile\Chest as TileChest;
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\ChestPairEvent;
 use pocketmine\item\Item;
@@ -33,15 +34,15 @@ use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
-class Chest extends Transparent{
+class Chest extends Transparent implements HorizontalFacing{
 	use FacesOppositePlacingPlayerTrait;
 
 	protected function recalculateCollisionBoxes() : array{
 		//these are slightly bigger than in PC
-		return [AxisAlignedBB::one()->contract(0.025, 0, 0.025)->trim(Facing::UP, 0.05)];
+		return [AxisAlignedBB::one()->contractedCopy(0.025, 0, 0.025)->trimmedCopy(Facing::UP, 0.05)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -50,7 +51,7 @@ class Chest extends Transparent{
 		$tile = $world->getTile($this->position);
 		if($tile instanceof TileChest){
 			foreach([false, true] as $clockwise){
-				$side = Facing::rotateY($this->facing, $clockwise);
+				$side = Facing::rotateY($this->facing->toFacing(), $clockwise);
 				$c = $this->getSide($side);
 				if($c instanceof Chest && $c->hasSameTypeId($this) && $c->facing === $this->facing){
 					$pair = $world->getTile($c->position);
@@ -69,7 +70,7 @@ class Chest extends Transparent{
 		}
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 
 			$chest = $this->position->getWorld()->getTile($this->position);

src/block/ChiseledBookshelf.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\tile\ChiseledBookshelf as TileChiseledBookshelf;
 use pocketmine\block\utils\ChiseledBookshelfSlot;
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Book;
@@ -38,7 +39,7 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use function spl_object_id;
 
-class ChiseledBookshelf extends Opaque{
+class ChiseledBookshelf extends Opaque implements HorizontalFacing{
 	use HorizontalFacingTrait;
 	use FacesOppositePlacingPlayerTrait;
 
@@ -51,7 +52,7 @@ class ChiseledBookshelf extends Opaque{
 	private ?ChiseledBookshelfSlot $lastInteractedSlot = null;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->enumSet($this->slots, ChiseledBookshelfSlot::cases());
 	}
 
@@ -113,6 +114,18 @@ class ChiseledBookshelf extends Opaque{
 		return $this->slots;
 	}
 
+	/**
+	 * @param ChiseledBookshelfSlot[] $slots
+	 * @return $this
+	 */
+	public function setSlots(array $slots) : self{
+		$this->slots = [];
+		foreach($slots as $slot){
+			$this->setSlot($slot, true);
+		}
+		return $this;
+	}
+
 	/**
 	 * Returns the last slot interacted by a player or null if no slot has been interacted with yet.
 	 */
@@ -130,8 +143,8 @@ class ChiseledBookshelf extends Opaque{
 		return $this;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
-		if($face !== $this->facing){
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+		if($face !== $this->facing->toFacing()){
 			return false;
 		}
 

src/block/ChorusFlower.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\StaticSupportTrait;
 use pocketmine\entity\projectile\Projectile;
@@ -40,7 +41,7 @@ use function array_rand;
 use function min;
 use function mt_rand;
 
-final class ChorusFlower extends Flowable{
+final class ChorusFlower extends Flowable implements Ageable{
 	use AgeableTrait;
 	use StaticSupportTrait;
 
@@ -105,9 +106,9 @@ final class ChorusFlower extends Flowable{
 		return [$stemHeight, $endStoneBelow];
 	}
 
-	private function allHorizontalBlocksEmpty(World $world, Vector3 $position, ?int $except) : bool{
+	private function allHorizontalBlocksEmpty(World $world, Vector3 $position, ?Facing $except) : bool{
 		foreach($position->sidesAroundAxis(Axis::Y) as $facing => $sidePosition){
-			if($facing === $except){
+			if($facing === $except?->value){
 				continue;
 			}
 			if($world->getBlock($sidePosition)->getTypeId() !== BlockTypeIds::AIR){
@@ -148,7 +149,7 @@ final class ChorusFlower extends Flowable{
 		return $this->allHorizontalBlocksEmpty($world, $up, null);
 	}
 
-	private function grow(int $facing, int $ageChange, ?BlockTransaction $tx) : BlockTransaction{
+	private function grow(Facing $facing, int $ageChange, ?BlockTransaction $tx) : BlockTransaction{
 		if($tx === null){
 			$tx = new BlockTransaction($this->position->getWorld());
 		}
@@ -175,10 +176,10 @@ final class ChorusFlower extends Flowable{
 			$facingVisited = [];
 			for($attempts = 0, $maxAttempts = mt_rand(0, $endStoneBelow ? 4 : 3); $attempts < $maxAttempts; $attempts++){
 				$facing = Facing::HORIZONTAL[array_rand(Facing::HORIZONTAL)];
-				if(isset($facingVisited[$facing])){
+				if(isset($facingVisited[$facing->value])){
 					continue;
 				}
-				$facingVisited[$facing] = true;
+				$facingVisited[$facing->value] = true;
 
 				$sidePosition = $this->position->getSide($facing);
 				if(

src/block/ChorusPlant.php

@@ -43,8 +43,8 @@ final class ChorusPlant extends Flowable{
 	protected function recalculateCollisionBoxes() : array{
 		$bb = AxisAlignedBB::one();
 		foreach(Facing::ALL as $facing){
-			if(!isset($this->connections[$facing])){
-				$bb->trim($facing, 2 / 16);
+			if(!isset($this->connections[$facing->value])){
+				$bb = $bb->trimmedCopy($facing, 2 / 16);
 			}
 		}
 
@@ -62,9 +62,9 @@ final class ChorusPlant extends Flowable{
 				BlockTypeIds::END_STONE, BlockTypeIds::CHORUS_FLOWER, $this->getTypeId() => true,
 				default => false
 			}){
-				$this->connections[$facing] = true;
+				$this->connections[$facing->value] = true;
 			}else{
-				unset($this->connections[$facing]);
+				unset($this->connections[$facing->value]);
 			}
 		}
 

src/block/CocoaBlock.php

@@ -23,15 +23,17 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\BlockEventHelper;
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\WoodType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Fertilizer;
 use pocketmine\item\Item;
 use pocketmine\item\VanillaItems;
-use pocketmine\math\Axis;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
@@ -39,25 +41,26 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use function mt_rand;
 
-class CocoaBlock extends Flowable{
+class CocoaBlock extends Flowable implements Ageable, HorizontalFacing{
 	use HorizontalFacingTrait;
 	use AgeableTrait;
 
 	public const MAX_AGE = 2;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->boundedIntAuto(0, self::MAX_AGE, $this->age);
 	}
 
 	protected function recalculateCollisionBoxes() : array{
+		$realFacing = $this->facing->toFacing();
 		return [
 			AxisAlignedBB::one()
-				->squash(Facing::axis(Facing::rotateY($this->facing, true)), (6 - $this->age) / 16) //sides
-				->trim(Facing::DOWN, (7 - $this->age * 2) / 16)
-				->trim(Facing::UP, 0.25)
-				->trim(Facing::opposite($this->facing), 1 / 16) //gap between log and pod
-				->trim($this->facing, (11 - $this->age * 2) / 16) //outward face
+				->squashedCopy(Facing::axis(Facing::rotateY($realFacing, true)), (6 - $this->age) / 16) //sides
+				->trimmedCopy(Facing::DOWN, (7 - $this->age * 2) / 16)
+				->trimmedCopy(Facing::UP, 0.25)
+				->trimmedCopy(Facing::opposite($realFacing), 1 / 16) //gap between log and pod
+				->trimmedCopy($realFacing, (11 - $this->age * 2) / 16) //outward face
 		];
 	}
 
@@ -65,16 +68,16 @@ class CocoaBlock extends Flowable{
 		return $block instanceof Wood && $block->getWoodType() === WoodType::JUNGLE;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
-		if(Facing::axis($face) !== Axis::Y && $this->canAttachTo($blockClicked)){
-			$this->facing = $face;
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
+		if(($hzFacing = HorizontalFacingOption::tryFromFacing($face)) !== null && $this->canAttachTo($blockClicked)){
+			$this->facing = $hzFacing;
 			return parent::place($tx, $item, $blockReplace, $blockClicked, $face, $clickVector, $player);
 		}
 
 		return false;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer && $this->grow($player)){
 			$item->pop();
 
@@ -85,7 +88,7 @@ class CocoaBlock extends Flowable{
 	}
 
 	public function onNearbyBlockChange() : void{
-		if(!$this->canAttachTo($this->getSide(Facing::opposite($this->facing)))){
+		if(!$this->canAttachTo($this->getSide(Facing::opposite($this->facing->toFacing())))){
 			$this->position->getWorld()->useBreakOn($this->position);
 		}
 	}

src/block/Concrete.php

@@ -23,8 +23,9 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 
-class Concrete extends Opaque{
+class Concrete extends Opaque implements Colored{
 	use ColoredTrait;
 }

src/block/ConcretePowder.php

@@ -24,12 +24,13 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockEventHelper;
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 use pocketmine\block\utils\Fallable;
 use pocketmine\block\utils\FallableTrait;
 use pocketmine\math\Facing;
 
-class ConcretePowder extends Opaque implements Fallable{
+class ConcretePowder extends Opaque implements Fallable, Colored{
 	use ColoredTrait;
 	use FallableTrait {
 		onNearbyBlockChange as protected startFalling;

src/block/CopperBulb.php

@@ -26,11 +26,13 @@ namespace pocketmine\block;
 use pocketmine\block\utils\CopperMaterial;
 use pocketmine\block\utils\CopperOxidation;
 use pocketmine\block\utils\CopperTrait;
+use pocketmine\block\utils\Lightable;
 use pocketmine\block\utils\LightableTrait;
+use pocketmine\block\utils\PoweredByRedstone;
 use pocketmine\block\utils\PoweredByRedstoneTrait;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 
-class CopperBulb extends Opaque implements CopperMaterial{
+class CopperBulb extends Opaque implements CopperMaterial, Lightable, PoweredByRedstone{
 	use CopperTrait;
 	use PoweredByRedstoneTrait;
 	use LightableTrait{

src/block/CopperDoor.php

@@ -35,7 +35,7 @@ class CopperDoor extends Door implements CopperMaterial{
 		onInteract as onInteractCopper;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if ($player !== null && $player->isSneaking() && $this->onInteractCopper($item, $face, $clickVector, $player, $returnedItems)) {
 			//copy copper properties to other half
 			$other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);

src/block/CopperTrapdoor.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\utils\CopperMaterial;
 use pocketmine\block\utils\CopperTrait;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
@@ -34,7 +35,7 @@ class CopperTrapdoor extends Trapdoor implements CopperMaterial{
 		onInteract as onInteractCopper;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if ($player !== null && $player->isSneaking() && $this->onInteractCopper($item, $face, $clickVector, $player, $returnedItems)) {
 			return true;
 		}

src/block/CoralBlock.php

@@ -24,11 +24,12 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\BlockEventHelper;
+use pocketmine\block\utils\CoralMaterial;
 use pocketmine\block\utils\CoralTypeTrait;
 use pocketmine\item\Item;
 use function mt_rand;
 
-final class CoralBlock extends Opaque{
+final class CoralBlock extends Opaque implements CoralMaterial{
 	use CoralTypeTrait;
 
 	public function onNearbyBlockChange() : void{

src/block/CraftingTable.php

@@ -25,12 +25,13 @@ namespace pocketmine\block;
 
 use pocketmine\block\inventory\CraftingTableInventory;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
 class CraftingTable extends Opaque{
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			$player->setCurrentWindow(new CraftingTableInventory($this->position));
 		}

src/block/Crops.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\BlockEventHelper;
 use pocketmine\block\utils\CropGrowthHelper;
@@ -34,7 +35,7 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use function mt_rand;
 
-abstract class Crops extends Flowable{
+abstract class Crops extends Flowable implements Ageable{
 	use AgeableTrait;
 	use StaticSupportTrait;
 
@@ -44,7 +45,7 @@ abstract class Crops extends Flowable{
 		return $block->getSide(Facing::DOWN)->getTypeId() === BlockTypeIds::FARMLAND;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($this->age < self::MAX_AGE && $item instanceof Fertilizer){
 			$block = clone $this;
 			$tempAge = $block->age + mt_rand(2, 5);

src/block/DaylightSensor.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\AnalogRedstoneSignalEmitter;
 use pocketmine\block\utils\AnalogRedstoneSignalEmitterTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -36,7 +37,7 @@ use function max;
 use function round;
 use const M_PI;
 
-class DaylightSensor extends Transparent{
+class DaylightSensor extends Transparent implements AnalogRedstoneSignalEmitter{
 	use AnalogRedstoneSignalEmitterTrait;
 
 	protected bool $inverted = false;
@@ -63,14 +64,14 @@ class DaylightSensor extends Transparent{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 10 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 10 / 16)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		$this->inverted = !$this->inverted;
 		$this->signalStrength = $this->recalculateSignalStrength();
 		$this->position->getWorld()->setBlock($this->position, $this);

src/block/Dirt.php

@@ -52,7 +52,7 @@ class Dirt extends Opaque{
 		return $this;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		$world = $this->position->getWorld();
 		if($face !== Facing::DOWN && $item instanceof Hoe){
 			$up = $this->getSide(Facing::UP);

src/block/Door.php

@@ -23,6 +23,8 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -34,7 +36,7 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use pocketmine\world\sound\DoorSound;
 
-class Door extends Transparent{
+class Door extends Transparent implements HorizontalFacing{
 	use HorizontalFacingTrait;
 
 	protected bool $top = false;
@@ -42,7 +44,7 @@ class Door extends Transparent{
 	protected bool $open = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->top);
 		$w->bool($this->hingeRight);
 		$w->bool($this->open);
@@ -97,10 +99,10 @@ class Door extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
 		//TODO: doors are 0.1825 blocks thick, instead of 0.1875 like JE (https://bugs.mojang.com/browse/MCPE-19214)
-		return [AxisAlignedBB::one()->trim($this->open ? Facing::rotateY($this->facing, !$this->hingeRight) : $this->facing, 327 / 400)];
+		return [AxisAlignedBB::one()->trimmedCopy($this->open ? Facing::rotateY($this->facing->toFacing(), !$this->hingeRight) : $this->facing->toFacing(), 327 / 400)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
@@ -110,7 +112,7 @@ class Door extends Transparent{
 		}
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($face === Facing::UP){
 			$blockUp = $this->getSide(Facing::UP);
 			if(!$blockUp->canBeReplaced() || !$this->canBeSupportedAt($blockReplace)){
@@ -118,11 +120,13 @@ class Door extends Transparent{
 			}
 
 			if($player !== null){
-				$this->facing = $player->getHorizontalFacing();
+				//TODO: not sure if entities should use HorizontalFacingOption too
+				$this->facing = HorizontalFacingOption::fromFacing($player->getHorizontalFacing());
 			}
 
-			$next = $this->getSide(Facing::rotateY($this->facing, false));
-			$next2 = $this->getSide(Facing::rotateY($this->facing, true));
+			$realFacing = $this->facing->toFacing();
+			$next = $this->getSide(Facing::rotateY($realFacing, false));
+			$next2 = $this->getSide(Facing::rotateY($realFacing, true));
 
 			if($next->hasSameTypeId($this) || (!$next2->isTransparent() && $next->isTransparent())){ //Door hinge
 				$this->hingeRight = true;
@@ -138,7 +142,7 @@ class Door extends Transparent{
 		return false;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		$this->open = !$this->open;
 
 		$other = $this->getSide($this->top ? Facing::DOWN : Facing::UP);

src/block/DoublePitcherCrop.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\CropGrowthHelper;
 use pocketmine\data\runtime\RuntimeDataDescriber;
@@ -37,7 +38,7 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
-final class DoublePitcherCrop extends DoublePlant{
+final class DoublePitcherCrop extends DoublePlant implements Ageable{
 	use AgeableTrait {
 		describeBlockOnlyState as describeAge;
 	}
@@ -57,10 +58,10 @@ final class DoublePitcherCrop extends DoublePlant{
 		//the pod exists only in the bottom half of the plant
 		return [
 			AxisAlignedBB::one()
-			->trim(Facing::UP, 11 / 16)
-			->squash(Axis::X, 3 / 16)
-			->squash(Axis::Z, 3 / 16)
-			->extend(Facing::DOWN, 1 / 16) //presumably this is to correct for farmland being 15/16 of a block tall
+			->trimmedCopy(Facing::UP, 11 / 16)
+			->squashedCopy(Axis::X, 3 / 16)
+			->squashedCopy(Axis::Z, 3 / 16)
+			->extendedCopy(Facing::DOWN, 1 / 16) //presumably this is to correct for farmland being 15/16 of a block tall
 		];
 	}
 
@@ -88,7 +89,7 @@ final class DoublePitcherCrop extends DoublePlant{
 
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($item instanceof Fertilizer && $this->grow($player)){
 			$item->pop();
 			return true;

src/block/DoublePlant.php

@@ -45,7 +45,7 @@ class DoublePlant extends Flowable{
 		return $this;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$down = $blockReplace->getSide(Facing::DOWN);
 		if($down->hasTypeTag(BlockTypeTags::DIRT) && $blockReplace->getSide(Facing::UP)->canBeReplaced()){
 			$top = clone $this;

src/block/DragonEgg.php

@@ -28,6 +28,7 @@ use pocketmine\block\utils\FallableTrait;
 use pocketmine\block\utils\SupportType;
 use pocketmine\event\block\BlockTeleportEvent;
 use pocketmine\item\Item;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\GameMode;
 use pocketmine\player\Player;
@@ -44,12 +45,12 @@ class DragonEgg extends Transparent implements Fallable{
 		return 1;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		$this->teleport();
 		return true;
 	}
 
-	public function onAttack(Item $item, int $face, ?Player $player = null) : bool{
+	public function onAttack(Item $item, Facing $face, ?Player $player = null) : bool{
 		if($player !== null && $player->getGamemode() !== GameMode::CREATIVE){
 			$this->teleport();
 			return true;
@@ -81,7 +82,7 @@ class DragonEgg extends Transparent implements Fallable{
 		}
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 }

src/block/DyedCandle.php

@@ -23,9 +23,10 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 
-class DyedCandle extends Candle{
+class DyedCandle extends Candle implements Colored{
 	use ColoredTrait;
 
 	protected function getCandleIfCompatibleType(Block $block) : ?Candle{

src/block/DyedShulkerBox.php

@@ -23,8 +23,9 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Colored;
 use pocketmine\block\utils\ColoredTrait;
 
-final class DyedShulkerBox extends ShulkerBox{
+final class DyedShulkerBox extends ShulkerBox implements Colored{
 	use ColoredTrait;
 }

src/block/EnchantingTable.php

@@ -34,14 +34,14 @@ use pocketmine\player\Player;
 class EnchantingTable extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 0.25)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 0.25)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			//TODO lock
 

src/block/EndPortalFrame.php

@@ -24,17 +24,18 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\math\AxisAlignedBB;
 use pocketmine\math\Facing;
 
-class EndPortalFrame extends Opaque{
+class EndPortalFrame extends Opaque implements HorizontalFacing{
 	use FacesOppositePlacingPlayerTrait;
 
 	protected bool $eye = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->eye);
 	}
 
@@ -51,6 +52,6 @@ class EndPortalFrame extends Opaque{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 3 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 3 / 16)];
 	}
 }

src/block/EndRod.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\AnyFacing;
 use pocketmine\block\utils\AnyFacingTrait;
 use pocketmine\item\Item;
 use pocketmine\math\Axis;
@@ -32,10 +33,10 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
-class EndRod extends Flowable{
+class EndRod extends Flowable implements AnyFacing{
 	use AnyFacingTrait;
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		$this->facing = $face;
 		if($blockClicked instanceof EndRod && $blockClicked->facing === $this->facing){
 			$this->facing = Facing::opposite($face);
@@ -60,7 +61,7 @@ class EndRod extends Flowable{
 			if($axis === $myAxis){
 				continue;
 			}
-			$bb->squash($axis, 6 / 16);
+			$bb->squashedCopy($axis, 6 / 16);
 		}
 		return [$bb];
 	}

src/block/EnderChest.php

@@ -26,6 +26,7 @@ namespace pocketmine\block;
 use pocketmine\block\inventory\EnderChestInventory;
 use pocketmine\block\tile\EnderChest as TileEnderChest;
 use pocketmine\block\utils\FacesOppositePlacingPlayerTrait;
+use pocketmine\block\utils\HorizontalFacing;
 use pocketmine\block\utils\SupportType;
 use pocketmine\item\Item;
 use pocketmine\math\AxisAlignedBB;
@@ -33,7 +34,7 @@ use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 
-class EnderChest extends Transparent{
+class EnderChest extends Transparent implements HorizontalFacing{
 	use FacesOppositePlacingPlayerTrait;
 
 	public function getLightLevel() : int{
@@ -42,14 +43,14 @@ class EnderChest extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
 		//these are slightly bigger than in PC
-		return [AxisAlignedBB::one()->contract(0.025, 0, 0.025)->trim(Facing::UP, 0.05)];
+		return [AxisAlignedBB::one()->contractedCopy(0.025, 0, 0.025)->trimmedCopy(Facing::UP, 0.05)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		if($player instanceof Player){
 			$enderChest = $this->position->getWorld()->getTile($this->position);
 			if($enderChest instanceof TileEnderChest && $this->getSide(Facing::UP)->isTransparent()){

src/block/Farmland.php

@@ -95,7 +95,7 @@ class Farmland extends Transparent{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return [AxisAlignedBB::one()->trim(Facing::UP, 1 / 16)];
+		return [AxisAlignedBB::one()->trimmedCopy(Facing::UP, 1 / 16)];
 	}
 
 	public function onNearbyBlockChange() : void{

src/block/Fence.php

@@ -45,9 +45,9 @@ class Fence extends Transparent{
 		foreach(Facing::HORIZONTAL as $facing){
 			$block = $this->getSide($facing);
 			if($block instanceof static || $block instanceof FenceGate || $block->getSupportType(Facing::opposite($facing)) === SupportType::FULL){
-				$this->connections[$facing] = true;
+				$this->connections[$facing->value] = true;
 			}else{
-				unset($this->connections[$facing]);
+				unset($this->connections[$facing->value]);
 			}
 		}
 
@@ -59,43 +59,43 @@ class Fence extends Transparent{
 
 		$bbs = [];
 
-		$connectWest = isset($this->connections[Facing::WEST]);
-		$connectEast = isset($this->connections[Facing::EAST]);
+		$connectWest = isset($this->connections[Facing::WEST->value]);
+		$connectEast = isset($this->connections[Facing::EAST->value]);
 
 		if($connectWest || $connectEast){
 			//X axis (west/east)
 			$bbs[] = AxisAlignedBB::one()
-				->squash(Axis::Z, $inset)
-				->extend(Facing::UP, 0.5)
-				->trim(Facing::WEST, $connectWest ? 0 : $inset)
-				->trim(Facing::EAST, $connectEast ? 0 : $inset);
+				->squashedCopy(Axis::Z, $inset)
+				->extendedCopy(Facing::UP, 0.5)
+				->trimmedCopy(Facing::WEST, $connectWest ? 0 : $inset)
+				->trimmedCopy(Facing::EAST, $connectEast ? 0 : $inset);
 		}
 
-		$connectNorth = isset($this->connections[Facing::NORTH]);
-		$connectSouth = isset($this->connections[Facing::SOUTH]);
+		$connectNorth = isset($this->connections[Facing::NORTH->value]);
+		$connectSouth = isset($this->connections[Facing::SOUTH->value]);
 
 		if($connectNorth || $connectSouth){
 			//Z axis (north/south)
 			$bbs[] = AxisAlignedBB::one()
-				->squash(Axis::X, $inset)
-				->extend(Facing::UP, 0.5)
-				->trim(Facing::NORTH, $connectNorth ? 0 : $inset)
-				->trim(Facing::SOUTH, $connectSouth ? 0 : $inset);
+				->squashedCopy(Axis::X, $inset)
+				->extendedCopy(Facing::UP, 0.5)
+				->trimmedCopy(Facing::NORTH, $connectNorth ? 0 : $inset)
+				->trimmedCopy(Facing::SOUTH, $connectSouth ? 0 : $inset);
 		}
 
 		if(count($bbs) === 0){
 			//centre post AABB (only needed if not connected on any axis - other BBs overlapping will do this if any connections are made)
 			return [
 				AxisAlignedBB::one()
-					->extend(Facing::UP, 0.5)
-					->contract($inset, 0, $inset)
+					->extendedCopy(Facing::UP, 0.5)
+					->contractedCopy($inset, 0, $inset)
 			];
 		}
 
 		return $bbs;
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return Facing::axis($facing) === Axis::Y ? SupportType::CENTER : SupportType::NONE;
 	}
 }

src/block/FenceGate.php

@@ -23,8 +23,11 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\HorizontalFacing;
+use pocketmine\block\utils\HorizontalFacingOption;
 use pocketmine\block\utils\HorizontalFacingTrait;
 use pocketmine\block\utils\SupportType;
+use pocketmine\block\utils\WoodMaterial;
 use pocketmine\block\utils\WoodTypeTrait;
 use pocketmine\data\runtime\RuntimeDataDescriber;
 use pocketmine\item\Item;
@@ -35,7 +38,7 @@ use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 use pocketmine\world\sound\DoorSound;
 
-class FenceGate extends Transparent{
+class FenceGate extends Transparent implements HorizontalFacing, WoodMaterial{
 	use WoodTypeTrait;
 	use HorizontalFacingTrait;
 
@@ -43,7 +46,7 @@ class FenceGate extends Transparent{
 	protected bool $inWall = false;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
-		$w->horizontalFacing($this->facing);
+		$w->enum($this->facing);
 		$w->bool($this->open);
 		$w->bool($this->inWall);
 	}
@@ -65,23 +68,24 @@ class FenceGate extends Transparent{
 	}
 
 	protected function recalculateCollisionBoxes() : array{
-		return $this->open ? [] : [AxisAlignedBB::one()->extend(Facing::UP, 0.5)->squash(Facing::axis($this->facing), 6 / 16)];
+		return $this->open ? [] : [AxisAlignedBB::one()->extendedCopy(Facing::UP, 0.5)->squashedCopy(Facing::axis($this->facing->toFacing()), 6 / 16)];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 
 	private function checkInWall() : bool{
+		$realFacing = $this->facing->toFacing();
 		return (
-			$this->getSide(Facing::rotateY($this->facing, false)) instanceof Wall ||
-			$this->getSide(Facing::rotateY($this->facing, true)) instanceof Wall
+			$this->getSide(Facing::rotateY($realFacing, false)) instanceof Wall ||
+			$this->getSide(Facing::rotateY($realFacing, true)) instanceof Wall
 		);
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
-			$this->facing = $player->getHorizontalFacing();
+			$this->facing = HorizontalFacingOption::fromFacing($player->getHorizontalFacing());
 		}
 
 		$this->inWall = $this->checkInWall();
@@ -97,12 +101,12 @@ class FenceGate extends Transparent{
 		}
 	}
 
-	public function onInteract(Item $item, int $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
+	public function onInteract(Item $item, Facing $face, Vector3 $clickVector, ?Player $player = null, array &$returnedItems = []) : bool{
 		$this->open = !$this->open;
 		if($this->open && $player !== null){
 			$playerFacing = $player->getHorizontalFacing();
-			if($playerFacing === Facing::opposite($this->facing)){
-				$this->facing = $playerFacing;
+			if($playerFacing === Facing::opposite($this->facing->toFacing())){
+				$this->facing = HorizontalFacingOption::fromFacing($playerFacing);
 			}
 		}
 

src/block/FillableCauldron.php

@@ -54,16 +54,16 @@ abstract class FillableCauldron extends Transparent{
 
 	protected function recalculateCollisionBoxes() : array{
 		$result = [
-			AxisAlignedBB::one()->trim(Facing::UP, 11 / 16) //bottom of the cauldron
+			AxisAlignedBB::one()->trimmedCopy(Facing::UP, 11 / 16) //bottom of the cauldron
 		];
 
 		foreach(Facing::HORIZONTAL as $f){ //add the frame parts around the bowl
-			$result[] = AxisAlignedBB::one()->trim($f, 14 / 16);
+			$result[] = AxisAlignedBB::one()->trimmedCopy($f, 14 / 16);
 		}
 		return $result;
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return $facing === Facing::UP ? SupportType::EDGE : SupportType::NONE;
 	}
 

src/block/Fire.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\Ageable;
 use pocketmine\block\utils\AgeableTrait;
 use pocketmine\block\utils\BlockEventHelper;
 use pocketmine\block\utils\SupportType;
@@ -35,7 +36,7 @@ use function max;
 use function min;
 use function mt_rand;
 
-class Fire extends BaseFire{
+class Fire extends BaseFire implements Ageable{
 	use AgeableTrait;
 
 	public const MAX_AGE = 15;

src/block/FloorBanner.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SignLikeRotation;
 use pocketmine\block\utils\SignLikeRotationTrait;
 use pocketmine\item\Item;
 use pocketmine\math\Facing;
@@ -30,14 +31,18 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
-final class FloorBanner extends BaseBanner{
+final class FloorBanner extends BaseBanner implements SignLikeRotation{
 	use SignLikeRotationTrait;
 
-	protected function getSupportingFace() : int{
+	protected function getOminousVersion() : Block{
+		return VanillaBlocks::OMINOUS_BANNER()->setRotation($this->rotation);
+	}
+
+	protected function getSupportingFace() : Facing{
 		return Facing::DOWN;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($face !== Facing::UP){
 			return false;
 		}

src/block/FloorCoralFan.php

@@ -38,16 +38,16 @@ use function rad2deg;
 final class FloorCoralFan extends BaseCoral{
 	use StaticSupportTrait;
 
-	private int $axis = Axis::X;
+	private Axis $axis = Axis::X;
 
 	protected function describeBlockOnlyState(RuntimeDataDescriber $w) : void{
 		$w->horizontalAxis($this->axis);
 	}
 
-	public function getAxis() : int{ return $this->axis; }
+	public function getAxis() : Axis{ return $this->axis; }
 
 	/** @return $this */
-	public function setAxis(int $axis) : self{
+	public function setAxis(Axis $axis) : self{
 		if($axis !== Axis::X && $axis !== Axis::Z){
 			throw new \InvalidArgumentException("Axis must be X or Z only");
 		}
@@ -55,7 +55,7 @@ final class FloorCoralFan extends BaseCoral{
 		return $this;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($player !== null){
 			$playerBlockPos = $player->getPosition()->floor();
 			$directionVector = $blockReplace->position->subtractVector($playerBlockPos)->normalize();

src/block/FloorSign.php

@@ -23,6 +23,7 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
+use pocketmine\block\utils\SignLikeRotation;
 use pocketmine\block\utils\SignLikeRotationTrait;
 use pocketmine\item\Item;
 use pocketmine\math\Facing;
@@ -30,14 +31,14 @@ use pocketmine\math\Vector3;
 use pocketmine\player\Player;
 use pocketmine\world\BlockTransaction;
 
-final class FloorSign extends BaseSign{
+final class FloorSign extends BaseSign implements SignLikeRotation{
 	use SignLikeRotationTrait;
 
-	protected function getSupportingFace() : int{
+	protected function getSupportingFace() : Facing{
 		return Facing::DOWN;
 	}
 
-	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, int $face, Vector3 $clickVector, ?Player $player = null) : bool{
+	public function place(BlockTransaction $tx, Item $item, Block $blockReplace, Block $blockClicked, Facing $face, Vector3 $clickVector, ?Player $player = null) : bool{
 		if($face !== Facing::UP){
 			return false;
 		}

src/block/Flowable.php

@@ -24,6 +24,7 @@ declare(strict_types=1);
 namespace pocketmine\block;
 
 use pocketmine\block\utils\SupportType;
+use pocketmine\math\Facing;
 use pocketmine\math\Vector3;
 
 /**
@@ -40,7 +41,7 @@ abstract class Flowable extends Transparent{
 		return false;
 	}
 
-	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, int $face, bool $isClickedBlock) : bool{
+	public function canBePlacedAt(Block $blockReplace, Vector3 $clickVector, Facing $face, bool $isClickedBlock) : bool{
 		return (!$this->canBeFlowedInto() || !$blockReplace instanceof Liquid) &&
 			parent::canBePlacedAt($blockReplace, $clickVector, $face, $isClickedBlock);
 	}
@@ -49,7 +50,7 @@ abstract class Flowable extends Transparent{
 		return [];
 	}
 
-	public function getSupportType(int $facing) : SupportType{
+	public function getSupportType(Facing $facing) : SupportType{
 		return SupportType::NONE;
 	}
 }