From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar Date: Mon, 6 Nov 2017 21:08:22 -0500 Subject: [PATCH] API to get a BlockState without a snapshot This allows you to get a BlockState without creating a snapshot, operating on the real tile entity. This is useful for where performance is needed also Avoid NPE during CraftBlockEntityState load if could not get TE If Tile Entity was null, correct Sign to return empty lines instead of null 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 b701a1344db066b9368841f2377ee493514bf282..5768ff2c3e15c038d132c7ad391332fb36251871 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 @@ -45,6 +45,7 @@ public abstract class BlockEntity { this.type = type; this.worldPosition = pos.immutable(); this.blockState = state; + this.persistentDataContainer = new CraftPersistentDataContainer(DATA_TYPE_REGISTRY); // Paper - always init } public static BlockPos getPosFromTag(CompoundTag nbt) { @@ -66,7 +67,7 @@ public abstract class BlockEntity { // CraftBukkit start - read container public void load(CompoundTag nbt) { - this.persistentDataContainer = new CraftPersistentDataContainer(BlockEntity.DATA_TYPE_REGISTRY); + this.persistentDataContainer.clear(); // Paper - clear instead of init net.minecraft.nbt.Tag persistentDataTag = nbt.get("PublicBukkitValues"); if (persistentDataTag instanceof CompoundTag) { @@ -240,8 +241,15 @@ public abstract class BlockEntity { // CraftBukkit start - add method public InventoryHolder getOwner() { + // Paper start + return getOwner(true); + } + public InventoryHolder getOwner(boolean useSnapshot) { + // Paper end if (this.level == null) return null; - org.bukkit.block.BlockState state = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ()).getState(); + 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; + 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/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java index 14e1c7c40761b1bd8123b4b351d5d77d7c1c52c2..13da02b84d7e748d61fdf5db01d92a8d8cd5c799 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java @@ -331,6 +331,13 @@ public class CraftBlock implements Block { return CraftBlockStates.getBlockState(this); } + // Paper start + @Override + public BlockState getState(boolean useSnapshot) { + return CraftBlockStates.getBlockState(this, useSnapshot); + } + // Paper end + @Override public Biome getBiome() { return this.getWorld().getBiome(this.getX(), this.getY(), this.getZ()); diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java index 7629a51ec284cab0db7e9238027d6acfa4f3083c..a76cce199acdcecfdd8b998ec08974c2ed0751cf 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java @@ -10,15 +10,26 @@ public class CraftBlockEntityState extends CraftBlockStat private final T tileEntity; private final T snapshot; + public final boolean snapshotDisabled; // Paper + public static boolean DISABLE_SNAPSHOT = false; // Paper public CraftBlockEntityState(World world, T tileEntity) { super(world, tileEntity.getBlockPos(), tileEntity.getBlockState()); this.tileEntity = tileEntity; + // Paper start + this.snapshotDisabled = DISABLE_SNAPSHOT; + if (DISABLE_SNAPSHOT) { + this.snapshot = this.tileEntity; + } else { + this.snapshot = this.createSnapshot(tileEntity); + } // copy tile entity data: - this.snapshot = this.createSnapshot(tileEntity); - this.load(snapshot); + if (this.snapshot != null) { + this.load(this.snapshot); + } + // Paper end } public void refreshSnapshot() { @@ -105,4 +116,11 @@ public class CraftBlockEntityState extends CraftBlockStat public PersistentDataContainer getPersistentDataContainer() { return this.getSnapshot().persistentDataContainer; } + + // Paper start + @Override + public boolean isSnapshot() { + return !this.snapshotDisabled; + } + // Paper end } diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java index 55cf35ec1bd867ae8106d00c101fd4797b6e9919..812eb8c75bf5308a3a0771a1faabdb22a3d80c28 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockStates.java @@ -368,15 +368,30 @@ public final class CraftBlockStates { } public static BlockState getBlockState(Block block) { + // Paper start + return CraftBlockStates.getBlockState(block, true); + } + public static BlockState getBlockState(Block block, boolean useSnapshot) { + // Paper end Preconditions.checkNotNull(block, "block is null"); CraftBlock craftBlock = (CraftBlock) block; CraftWorld world = (CraftWorld) block.getWorld(); BlockPos blockPosition = craftBlock.getPosition(); net.minecraft.world.level.block.state.BlockState blockData = craftBlock.getNMS(); BlockEntity tileEntity = craftBlock.getHandle().getBlockEntity(blockPosition); + // Paper start - block state snapshots + boolean prev = CraftBlockEntityState.DISABLE_SNAPSHOT; + CraftBlockEntityState.DISABLE_SNAPSHOT = !useSnapshot; + try { + // Paper end CraftBlockState blockState = CraftBlockStates.getBlockState(world, blockPosition, blockData, tileEntity); blockState.setWorldHandle(craftBlock.getHandle()); // Inject the block's generator access return blockState; + // Paper start + } finally { + CraftBlockEntityState.DISABLE_SNAPSHOT = prev; + } + // Paper end } public static BlockState getBlockState(Material material, @Nullable CompoundTag blockEntityTag) { diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java index 3fc3907172f12ee24ea70bd6a1ffbbc6084ed971..2c59f09a9261a1690951161fd856a5848d9885b7 100644 --- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java +++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java @@ -156,4 +156,10 @@ public class CraftPersistentDataContainer implements PersistentDataContainer { public Map serialize() { return (Map) CraftNBTTagConfigSerializer.serialize(this.toTagCompound()); } + + // Paper start + public void clear() { + this.customDataTags.clear(); + } + // Paper end }