From 81858dadc6c83ef90c21a41f1a04ca57728cfcba 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/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java index b3c5766a2..29fe031d8 100644 --- a/src/main/java/net/minecraft/server/TileEntity.java +++ b/src/main/java/net/minecraft/server/TileEntity.java @@ -206,7 +206,12 @@ public abstract class TileEntity implements KeyedObject { // Paper } // CraftBukkit start - add method + // Paper start public InventoryHolder getOwner() { + return getOwner(true); + } + public InventoryHolder getOwner(boolean useSnapshot) { + // Paper end if (world == null) return null; // Spigot start org.bukkit.block.Block block = world.getWorld().getBlockAt(position.getX(), position.getY(), position.getZ()); @@ -215,7 +220,7 @@ public abstract class TileEntity implements KeyedObject { // Paper 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 4b4fdf93f..7ae4b7952 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java @@ -275,6 +275,20 @@ public class CraftBlock implements Block { } public BlockState getState() { + // 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) { diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java index 4f4121adc..082a1b6e2 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockEntityState.java @@ -23,20 +23,40 @@ public class CraftBlockEntityState extends CraftBlockState CraftWorld world = (CraftWorld) this.getWorld(); this.tileEntity = tileEntityClass.cast(world.getHandle().getTileEntity(this.getPosition())); + // Paper start + this.snapshotDisabled = DISABLE_SNAPSHOT; + if (DISABLE_SNAPSHOT) { + this.snapshot = this.tileEntity; + } else { + this.snapshot = this.createSnapshot(this.tileEntity, world.getHandle()); + } // copy tile entity data: - this.snapshot = this.createSnapshot(tileEntity, world.getHandle()); - 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, null); + } // copy tile entity data: - this.snapshot = this.createSnapshot(tileEntity, null); - this.load(snapshot); + if(this.snapshot != null) { + this.load(this.snapshot); + } + // Paper end } private T createSnapshot(T tileEntity, World world) { diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java index e6f86cc4b..3a8f64360 100644 --- a/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java +++ b/src/main/java/org/bukkit/craftbukkit/block/CraftSign.java @@ -15,10 +15,12 @@ public class CraftSign extends CraftBlockEntityState implements public CraftSign(final Block block) { super(block, TileEntitySign.class); + if (lines == null) { lines = new String[]{"", "", "", ""}; } // Paper } public CraftSign(final Material material, final TileEntitySign te) { super(material, te); + if (lines == null) { lines = new String[]{"", "", "", ""}; } // Paper } @Override -- 2.21.0