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 77645019c88d61dde28b7598d8a29b7d0c23c209..8a079ee3ed243fd19b1dd7eed2de1dd33785faa1 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 @@ -42,6 +42,7 @@ public abstract class BlockEntity implements net.minecraft.server.KeyedObject { this.type = type; this.worldPosition = pos.immutable(); this.blockState = state; + persistentDataContainer = new CraftPersistentDataContainer(DATA_TYPE_REGISTRY); // Paper - always init } // Paper start @@ -79,7 +80,7 @@ public abstract class BlockEntity implements net.minecraft.server.KeyedObject { // CraftBukkit start - read container public void load(CompoundTag nbt) { - this.persistentDataContainer = new CraftPersistentDataContainer(BlockEntity.DATA_TYPE_REGISTRY); + this.persistentDataContainer.clear(); net.minecraft.nbt.Tag persistentDataTag = nbt.get("PublicBukkitValues"); if (persistentDataTag instanceof CompoundTag) { @@ -221,8 +222,13 @@ public abstract class BlockEntity implements net.minecraft.server.KeyedObject { } // CraftBukkit start - add method + // Paper start public InventoryHolder getOwner() { - if (this.level == null) return null; + return getOwner(true); + } + public InventoryHolder getOwner(boolean useSnapshot) { + // Paper end + if (level == null) return null; // Spigot start org.bukkit.block.Block block = this.level.getWorld().getBlockAt(this.worldPosition.getX(), this.worldPosition.getY(), this.worldPosition.getZ()); if (block == null) { @@ -230,7 +236,7 @@ public abstract class BlockEntity implements net.minecraft.server.KeyedObject { return null; } // Spigot end - org.bukkit.block.BlockState state = block.getState(); + 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 4175eb5f71522c23eadcbaac6e4b0fbd31f572bc..650e119a4683ad5cb0175dd558f9299f0ebcca0d 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java @@ -315,7 +315,21 @@ public class CraftBlock implements Block { @Override public BlockState getState() { - Material material = this.getType(); + // Paper start - allow disabling the use of snapshots + return getState(true); + } + public BlockState getState(boolean useSnapshot) { + boolean prev = CraftBlockEntityState.DISABLE_SNAPSHOT; + CraftBlockEntityState.DISABLE_SNAPSHOT = !useSnapshot; + try { + return getState0(); + } finally { + CraftBlockEntityState.DISABLE_SNAPSHOT = prev; + } + } + public BlockState getState0() { + // Paper end + Material material = getType(); switch (material) { case ACACIA_SIGN: diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java index 5203741fc3ba3b856f15d27e563b641c1e48e022..204a61767d5cacc962094b9ecc37f457987cbde7 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java @@ -25,20 +25,40 @@ public class CraftBlockEntityState extends CraftBlockStat this.tileEntity = tileEntityClass.cast(getWorldHandle().getBlockEntity(this.getPosition())); Preconditions.checkState(this.tileEntity != null, "Tile is null, asynchronous access? %s", block); + // Paper start + this.snapshotDisabled = DISABLE_SNAPSHOT; + if (DISABLE_SNAPSHOT) { + this.snapshot = this.tileEntity; + } else { + this.snapshot = this.createSnapshot(this.tileEntity); + } // copy tile entity data: - this.snapshot = this.createSnapshot(tileEntity); - this.load(snapshot); + if(this.snapshot != null) { + this.load(this.snapshot); + } + // Paper end } + public final boolean snapshotDisabled; // Paper + public static boolean DISABLE_SNAPSHOT = false; // Paper + public CraftBlockEntityState(Material material, T tileEntity) { super(material); this.tileEntityClass = (Class) tileEntity.getClass(); this.tileEntity = tileEntity; - + // Paper start + this.snapshotDisabled = DISABLE_SNAPSHOT; + if (DISABLE_SNAPSHOT) { + this.snapshot = this.tileEntity; + } else { + this.snapshot = this.createSnapshot(this.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() { diff --git a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java index ddd7b63f0452042baa3fca04bb9fbdb42fcecbfd..b638351581fa09c488425a2318b782a5812140ce 100644 --- a/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java +++ b/src/main/java/org/bukkit/craftbukkit/persistence/CraftPersistentDataContainer.java @@ -155,4 +155,10 @@ public final class CraftPersistentDataContainer implements PersistentDataContain public Map serialize() { return (Map) CraftNBTTagConfigSerializer.serialize(this.toTagCompound()); } + + // Paper start + public void clear() { + this.customDataTags.clear(); + } + // Paper end }