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-rw-r--r--patches/server/0797-Fix-upstreams-block-state-factories.patch367
1 files changed, 367 insertions, 0 deletions
diff --git a/patches/server/0797-Fix-upstreams-block-state-factories.patch b/patches/server/0797-Fix-upstreams-block-state-factories.patch
new file mode 100644
index 0000000000..4a88c25608
--- /dev/null
+++ b/patches/server/0797-Fix-upstreams-block-state-factories.patch
@@ -0,0 +1,367 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <[email protected]>
+Date: Wed, 6 Oct 2021 20:50:48 -0700
+Subject: [PATCH] Fix upstreams block state factories
+
+Sometimes, blocks are changed and then logic is called before the associated
+tile entity is removed. When this happens, the factories were relying on the
+block at the position, not the tile entity. This change prioritizes using the
+tile entity type to determine the block state factory and falls back on
+the material type of the block at that location.
+
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+index e838abb6d258a1ab47e95572cf4c30c6ca6144b4..905ec2917fe1e5ef08b8a930afb0c0d8432fa444 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
++++ b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+@@ -270,7 +270,7 @@ public abstract class BlockEntity implements io.papermc.paper.util.KeyedObject {
+ // Paper end
+ if (this.level == null) return null;
+ org.bukkit.block.Block block = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ());
+- if (block.getType() == org.bukkit.Material.AIR) return null;
++ // if (block.getType() == org.bukkit.Material.AIR) return null; // Paper - actually get the tile entity if it still exists
+ org.bukkit.block.BlockState state = block.getState(useSnapshot); // Paper
+ if (state instanceof InventoryHolder) return (InventoryHolder) state;
+ return null;
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+index d46e3812ef058c119d327cf752e7deaa341736e3..8c847183a398df386ae5a24467378c5c3b889dc7 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java
+@@ -6,7 +6,7 @@ import org.bukkit.World;
+ import org.bukkit.block.TileState;
+ import org.bukkit.persistence.PersistentDataContainer;
+
+-public class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockState implements TileState {
++public abstract class CraftBlockEntityState<T extends BlockEntity> extends CraftBlockState implements TileState { // Paper - revert upstream's revert of the block state changes
+
+ private final T tileEntity;
+ private final T snapshot;
+diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+index 93a8aeb5545c794ac425c35f8af52a443cd060ca..9a4d79973af25853c4173a1df0131830505b623b 100644
+--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
++++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java
+@@ -19,6 +19,7 @@ import net.minecraft.world.level.block.entity.BeehiveBlockEntity;
+ import net.minecraft.world.level.block.entity.BellBlockEntity;
+ import net.minecraft.world.level.block.entity.BlastFurnaceBlockEntity;
+ import net.minecraft.world.level.block.entity.BlockEntity;
++import net.minecraft.world.level.block.entity.BlockEntityType; // Paper
+ import net.minecraft.world.level.block.entity.BrewingStandBlockEntity;
+ import net.minecraft.world.level.block.entity.CampfireBlockEntity;
+ import net.minecraft.world.level.block.entity.ChestBlockEntity;
+@@ -105,188 +106,55 @@ public final class CraftBlockStates {
+ private static final BlockStateFactory<?> DEFAULT_FACTORY = new BlockStateFactory<CraftBlockState>(CraftBlockState.class) {
+ @Override
+ public CraftBlockState createBlockState(World world, BlockPos blockPosition, net.minecraft.world.level.block.state.BlockState blockData, BlockEntity tileEntity) {
+- // SPIGOT-6754, SPIGOT-6817: Restore previous behaviour for tile entities with removed blocks (loot generation post-destroy)
+- if (tileEntity != null) {
+- // block with unhandled TileEntity:
+- return new CraftBlockEntityState<>(world, tileEntity);
+- }
++ // Paper - revert upstream's revert of the block state changes. Block entities that have already had the block type set to AIR are still valid, upstream decided to ignore them
+ Preconditions.checkState(tileEntity == null, "Unexpected BlockState for %s", CraftMagicNumbers.getMaterial(blockData.getBlock()));
+ return new CraftBlockState(world, blockPosition, blockData);
+ }
+ };
++ // Paper start
++ private static final Map<BlockEntityType<?>, BlockStateFactory<?>> FACTORIES_BY_BLOCK_ENTITY_TYPE = new HashMap<>();
++ private static void register(BlockEntityType<?> type, BlockStateFactory<?> factory) {
++ FACTORIES_BY_BLOCK_ENTITY_TYPE.put(type, factory);
++ }
++ // Paper end
+
+ static {
+- register(
+- Arrays.asList(
+- Material.ACACIA_SIGN,
+- Material.ACACIA_WALL_SIGN,
+- Material.BIRCH_SIGN,
+- Material.BIRCH_WALL_SIGN,
+- Material.CRIMSON_SIGN,
+- Material.CRIMSON_WALL_SIGN,
+- Material.DARK_OAK_SIGN,
+- Material.DARK_OAK_WALL_SIGN,
+- Material.JUNGLE_SIGN,
+- Material.JUNGLE_WALL_SIGN,
+- Material.OAK_SIGN,
+- Material.OAK_WALL_SIGN,
+- Material.SPRUCE_SIGN,
+- Material.SPRUCE_WALL_SIGN,
+- Material.WARPED_SIGN,
+- Material.WARPED_WALL_SIGN
+- ), CraftSign.class, CraftSign::new, SignBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.CREEPER_HEAD,
+- Material.CREEPER_WALL_HEAD,
+- Material.DRAGON_HEAD,
+- Material.DRAGON_WALL_HEAD,
+- Material.PLAYER_HEAD,
+- Material.PLAYER_WALL_HEAD,
+- Material.SKELETON_SKULL,
+- Material.SKELETON_WALL_SKULL,
+- Material.WITHER_SKELETON_SKULL,
+- Material.WITHER_SKELETON_WALL_SKULL,
+- Material.ZOMBIE_HEAD,
+- Material.ZOMBIE_WALL_HEAD
+- ), CraftSkull.class, CraftSkull::new, SkullBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.COMMAND_BLOCK,
+- Material.REPEATING_COMMAND_BLOCK,
+- Material.CHAIN_COMMAND_BLOCK
+- ), CraftCommandBlock.class, CraftCommandBlock::new, CommandBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.BLACK_BANNER,
+- Material.BLACK_WALL_BANNER,
+- Material.BLUE_BANNER,
+- Material.BLUE_WALL_BANNER,
+- Material.BROWN_BANNER,
+- Material.BROWN_WALL_BANNER,
+- Material.CYAN_BANNER,
+- Material.CYAN_WALL_BANNER,
+- Material.GRAY_BANNER,
+- Material.GRAY_WALL_BANNER,
+- Material.GREEN_BANNER,
+- Material.GREEN_WALL_BANNER,
+- Material.LIGHT_BLUE_BANNER,
+- Material.LIGHT_BLUE_WALL_BANNER,
+- Material.LIGHT_GRAY_BANNER,
+- Material.LIGHT_GRAY_WALL_BANNER,
+- Material.LIME_BANNER,
+- Material.LIME_WALL_BANNER,
+- Material.MAGENTA_BANNER,
+- Material.MAGENTA_WALL_BANNER,
+- Material.ORANGE_BANNER,
+- Material.ORANGE_WALL_BANNER,
+- Material.PINK_BANNER,
+- Material.PINK_WALL_BANNER,
+- Material.PURPLE_BANNER,
+- Material.PURPLE_WALL_BANNER,
+- Material.RED_BANNER,
+- Material.RED_WALL_BANNER,
+- Material.WHITE_BANNER,
+- Material.WHITE_WALL_BANNER,
+- Material.YELLOW_BANNER,
+- Material.YELLOW_WALL_BANNER
+- ), CraftBanner.class, CraftBanner::new, BannerBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.SHULKER_BOX,
+- Material.WHITE_SHULKER_BOX,
+- Material.ORANGE_SHULKER_BOX,
+- Material.MAGENTA_SHULKER_BOX,
+- Material.LIGHT_BLUE_SHULKER_BOX,
+- Material.YELLOW_SHULKER_BOX,
+- Material.LIME_SHULKER_BOX,
+- Material.PINK_SHULKER_BOX,
+- Material.GRAY_SHULKER_BOX,
+- Material.LIGHT_GRAY_SHULKER_BOX,
+- Material.CYAN_SHULKER_BOX,
+- Material.PURPLE_SHULKER_BOX,
+- Material.BLUE_SHULKER_BOX,
+- Material.BROWN_SHULKER_BOX,
+- Material.GREEN_SHULKER_BOX,
+- Material.RED_SHULKER_BOX,
+- Material.BLACK_SHULKER_BOX
+- ), CraftShulkerBox.class, CraftShulkerBox::new, ShulkerBoxBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.BLACK_BED,
+- Material.BLUE_BED,
+- Material.BROWN_BED,
+- Material.CYAN_BED,
+- Material.GRAY_BED,
+- Material.GREEN_BED,
+- Material.LIGHT_BLUE_BED,
+- Material.LIGHT_GRAY_BED,
+- Material.LIME_BED,
+- Material.MAGENTA_BED,
+- Material.ORANGE_BED,
+- Material.PINK_BED,
+- Material.PURPLE_BED,
+- Material.RED_BED,
+- Material.WHITE_BED,
+- Material.YELLOW_BED
+- ), CraftBed.class, CraftBed::new, BedBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.BEEHIVE,
+- Material.BEE_NEST
+- ), CraftBeehive.class, CraftBeehive::new, BeehiveBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.CAMPFIRE,
+- Material.SOUL_CAMPFIRE
+- ), CraftCampfire.class, CraftCampfire::new, CampfireBlockEntity::new
+- );
+-
+- register(
+- Arrays.asList(
+- Material.CHEST,
+- Material.TRAPPED_CHEST
+- ), CraftChest.class, CraftChest::new, ChestBlockEntity::new
+- );
+-
+- register(Material.BARREL, CraftBarrel.class, CraftBarrel::new, BarrelBlockEntity::new);
+- register(Material.BEACON, CraftBeacon.class, CraftBeacon::new, BeaconBlockEntity::new);
+- register(Material.BELL, CraftBell.class, CraftBell::new, BellBlockEntity::new);
+- register(Material.BLAST_FURNACE, CraftBlastFurnace.class, CraftBlastFurnace::new, BlastFurnaceBlockEntity::new);
+- register(Material.BREWING_STAND, CraftBrewingStand.class, CraftBrewingStand::new, BrewingStandBlockEntity::new);
+- register(Material.COMPARATOR, CraftComparator.class, CraftComparator::new, ComparatorBlockEntity::new);
+- register(Material.CONDUIT, CraftConduit.class, CraftConduit::new, ConduitBlockEntity::new);
+- register(Material.DAYLIGHT_DETECTOR, CraftDaylightDetector.class, CraftDaylightDetector::new, DaylightDetectorBlockEntity::new);
+- register(Material.DISPENSER, CraftDispenser.class, CraftDispenser::new, DispenserBlockEntity::new);
+- register(Material.DROPPER, CraftDropper.class, CraftDropper::new, DropperBlockEntity::new);
+- register(Material.ENCHANTING_TABLE, CraftEnchantingTable.class, CraftEnchantingTable::new, EnchantmentTableBlockEntity::new);
+- register(Material.ENDER_CHEST, CraftEnderChest.class, CraftEnderChest::new, EnderChestBlockEntity::new);
+- register(Material.END_GATEWAY, CraftEndGateway.class, CraftEndGateway::new, TheEndGatewayBlockEntity::new);
+- register(Material.END_PORTAL, CraftEndPortal.class, CraftEndPortal::new, TheEndPortalBlockEntity::new);
+- register(Material.FURNACE, CraftFurnaceFurnace.class, CraftFurnaceFurnace::new, FurnaceBlockEntity::new);
+- register(Material.HOPPER, CraftHopper.class, CraftHopper::new, HopperBlockEntity::new);
+- register(Material.JIGSAW, CraftJigsaw.class, CraftJigsaw::new, JigsawBlockEntity::new);
+- register(Material.JUKEBOX, CraftJukebox.class, CraftJukebox::new, JukeboxBlockEntity::new);
+- register(Material.LECTERN, CraftLectern.class, CraftLectern::new, LecternBlockEntity::new);
+- register(Material.MOVING_PISTON, CraftMovingPiston.class, CraftMovingPiston::new, PistonMovingBlockEntity::new);
+- register(Material.SCULK_SENSOR, CraftSculkSensor.class, CraftSculkSensor::new, SculkSensorBlockEntity::new);
+- register(Material.SMOKER, CraftSmoker.class, CraftSmoker::new, SmokerBlockEntity::new);
+- register(Material.SPAWNER, CraftCreatureSpawner.class, CraftCreatureSpawner::new, SpawnerBlockEntity::new);
+- register(Material.STRUCTURE_BLOCK, CraftStructureBlock.class, CraftStructureBlock::new, StructureBlockEntity::new);
++ // Paper start - simplify
++ register(BlockEntityType.SIGN, CraftSign.class, CraftSign::new);
++ register(BlockEntityType.SKULL, CraftSkull.class, CraftSkull::new);
++ register(BlockEntityType.COMMAND_BLOCK, CraftCommandBlock.class, CraftCommandBlock::new);
++ register(BlockEntityType.BANNER, CraftBanner.class, CraftBanner::new);
++ register(BlockEntityType.SHULKER_BOX, CraftShulkerBox.class, CraftShulkerBox::new);
++ register(BlockEntityType.BED, CraftBed.class, CraftBed::new);
++ register(BlockEntityType.BEEHIVE, CraftBeehive.class, CraftBeehive::new);
++ register(BlockEntityType.CAMPFIRE, CraftCampfire.class, CraftCampfire::new);
++ register(BlockEntityType.CHEST, CraftChest.class, CraftChest::new); // Paper - split up chests due to different block entity types
++ register(BlockEntityType.TRAPPED_CHEST, CraftChest.class, CraftChest::new); // Paper - split up chests due to different block entity types
++ register(BlockEntityType.BARREL, CraftBarrel.class, CraftBarrel::new);
++ register(BlockEntityType.BEACON, CraftBeacon.class, CraftBeacon::new);
++ register(BlockEntityType.BELL, CraftBell.class, CraftBell::new);
++ register(BlockEntityType.BLAST_FURNACE, CraftBlastFurnace.class, CraftBlastFurnace::new);
++ register(BlockEntityType.BREWING_STAND, CraftBrewingStand.class, CraftBrewingStand::new);
++ register(BlockEntityType.COMPARATOR, CraftComparator.class, CraftComparator::new);
++ register(BlockEntityType.CONDUIT, CraftConduit.class, CraftConduit::new);
++ register(BlockEntityType.DAYLIGHT_DETECTOR, CraftDaylightDetector.class, CraftDaylightDetector::new);
++ register(BlockEntityType.DISPENSER, CraftDispenser.class, CraftDispenser::new);
++ register(BlockEntityType.DROPPER, CraftDropper.class, CraftDropper::new);
++ register(BlockEntityType.ENCHANTING_TABLE, CraftEnchantingTable.class, CraftEnchantingTable::new);
++ register(BlockEntityType.ENDER_CHEST, CraftEnderChest.class, CraftEnderChest::new);
++ register(BlockEntityType.END_GATEWAY, CraftEndGateway.class, CraftEndGateway::new);
++ register(BlockEntityType.END_PORTAL, CraftEndPortal.class, CraftEndPortal::new);
++ register(BlockEntityType.FURNACE, CraftFurnaceFurnace.class, CraftFurnaceFurnace::new);
++ register(BlockEntityType.HOPPER, CraftHopper.class, CraftHopper::new);
++ register(BlockEntityType.JIGSAW, CraftJigsaw.class, CraftJigsaw::new);
++ register(BlockEntityType.JUKEBOX, CraftJukebox.class, CraftJukebox::new);
++ register(BlockEntityType.LECTERN, CraftLectern.class, CraftLectern::new);
++ register(BlockEntityType.PISTON, CraftMovingPiston.class, CraftMovingPiston::new);
++ register(BlockEntityType.SCULK_SENSOR, CraftSculkSensor.class, CraftSculkSensor::new);
++ register(BlockEntityType.SMOKER, CraftSmoker.class, CraftSmoker::new);
++ register(BlockEntityType.MOB_SPAWNER, CraftCreatureSpawner.class, CraftCreatureSpawner::new);
++ register(BlockEntityType.STRUCTURE_BLOCK, CraftStructureBlock.class, CraftStructureBlock::new);
++ // Paper end
+ }
+
+ private static void register(Material blockType, BlockStateFactory<?> factory) {
+@@ -294,35 +162,45 @@ public final class CraftBlockStates {
+ }
+
+ private static <T extends BlockEntity, B extends CraftBlockEntityState<T>> void register(
+- Material blockType,
++ net.minecraft.world.level.block.entity.BlockEntityType<? extends T> blockEntityType, // Paper
+ Class<B> blockStateType,
+- BiFunction<World, T, B> blockStateConstructor,
+- BiFunction<BlockPos, net.minecraft.world.level.block.state.BlockState, T> tileEntityConstructor
++ BiFunction<World, T, B> blockStateConstructor // Paper
+ ) {
+- CraftBlockStates.register(Collections.singletonList(blockType), blockStateType, blockStateConstructor, tileEntityConstructor);
+- }
+-
+- private static <T extends BlockEntity, B extends CraftBlockEntityState<T>> void register(
+- List<Material> blockTypes,
+- Class<B> blockStateType,
+- BiFunction<World, T, B> blockStateConstructor,
+- BiFunction<BlockPos, net.minecraft.world.level.block.state.BlockState, T> tileEntityConstructor
+- ) {
+- BlockStateFactory<B> factory = new BlockEntityStateFactory<>(blockStateType, blockStateConstructor, tileEntityConstructor);
+- for (Material blockType : blockTypes) {
+- CraftBlockStates.register(blockType, factory);
++ // Paper start
++ BlockStateFactory<B> factory = new BlockEntityStateFactory<>(blockStateType, blockStateConstructor, blockEntityType::create);
++ for (net.minecraft.world.level.block.Block block : blockEntityType.validBlocks) {
++ CraftBlockStates.register(CraftMagicNumbers.getMaterial(block), factory);
+ }
++ CraftBlockStates.register(blockEntityType, factory);
++ // Paper end
+ }
+
+ private static BlockStateFactory<?> getFactory(Material material) {
+ return CraftBlockStates.FACTORIES.getOrDefault(material, DEFAULT_FACTORY);
+ }
+
++ // Paper start
++ private static BlockStateFactory<?> getFactory(Material material, BlockEntityType<?> type) {
++ if (type != null) {
++ return CraftBlockStates.FACTORIES_BY_BLOCK_ENTITY_TYPE.getOrDefault(type, getFactory(material));
++ } else {
++ return getFactory(material);
++ }
++ }
++ // Paper end
++
+ public static Class<? extends CraftBlockState> getBlockStateType(Material material) {
+ Preconditions.checkNotNull(material, "material is null");
+ return CraftBlockStates.getFactory(material).blockStateType;
+ }
+
++ // Paper start
++ public static Class<? extends CraftBlockState> getBlockStateType(BlockEntityType<?> blockEntityType) {
++ Preconditions.checkNotNull(blockEntityType, "blockEntityType is null");
++ return CraftBlockStates.getFactory(null, blockEntityType).blockStateType;
++ }
++ // Paper end
++
+ public static BlockState getBlockState(Block block) {
+ // Paper start
+ return CraftBlockStates.getBlockState(block, true);
+@@ -380,7 +258,7 @@ public final class CraftBlockStates {
+ if (world != null && tileEntity == null && CraftBlockStates.isTileEntityOptional(material)) {
+ factory = CraftBlockStates.DEFAULT_FACTORY;
+ } else {
+- factory = CraftBlockStates.getFactory(material);
++ factory = CraftBlockStates.getFactory(material, tileEntity != null ? tileEntity.getType() : null); // Paper
+ }
+ return factory.createBlockState(world, blockPosition, blockData, tileEntity);
+ }
+diff --git a/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java b/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
+index 738227d8dbab8460d2bd7f75098e91bcae2d1ff3..8980163dabdd21d040bc7e622e9a22d01f73005b 100644
+--- a/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
++++ b/src/test/java/org/bukkit/craftbukkit/block/BlockStateTest.java
+@@ -26,4 +26,11 @@ public class BlockStateTest extends AbstractTestingBase {
+ }
+ }
+ }
++
++ @Test
++ public void testBlockEntityTypes() {
++ for (var blockEntityType : Registry.BLOCK_ENTITY_TYPE) {
++ org.junit.Assert.assertNotNull(CraftBlockStates.getBlockStateType(blockEntityType));
++ }
++ }
+ }