PaperMC/patches/server/0471-Optimise-getType-calls.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Wed, 3 Jun 2020 11:37:13 -0700
Subject: [PATCH] Optimise getType calls

Remove the map lookup for converting from Block->Bukkit Material

diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockState.java b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
index da878e180c6b94f98dc82c6e8395f63ecc9b2c1e..a9b0f5950b6f97ea4c2a1075946b92008b62c9d9 100644
--- a/src/main/java/net/minecraft/world/level/block/state/BlockState.java
+++ b/src/main/java/net/minecraft/world/level/block/state/BlockState.java
@@ -10,6 +10,17 @@ import net.minecraft.world.level.block.state.properties.Property;
 public class BlockState extends BlockBehaviour.BlockStateBase {
     public static final Codec<BlockState> CODEC = codec(BuiltInRegistries.BLOCK.byNameCodec(), Block::defaultBlockState).stable();
 
+    // Paper start - optimise getType calls
+    org.bukkit.Material cachedMaterial;
+
+    public final org.bukkit.Material getBukkitMaterial() {
+        if (this.cachedMaterial == null) {
+            this.cachedMaterial = org.bukkit.craftbukkit.util.CraftMagicNumbers.getMaterial(this.getBlock());
+        }
+
+        return this.cachedMaterial;
+    }
+    // Paper end - optimise getType calls
     public BlockState(Block block, ImmutableMap<Property<?>, Comparable<?>> propertyMap, MapCodec<BlockState> codec) {
         super(block, propertyMap, codec);
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
index 89be1b21c918c5b81ec29fc460fa57d413fb498f..26223227f467c65f62d62a5cba6403979f62c753 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
@@ -98,7 +98,7 @@ public class CraftChunkSnapshot implements ChunkSnapshot {
     public Material getBlockType(int x, int y, int z) {
         this.validateChunkCoordinates(x, y, z);
 
-        return CraftMagicNumbers.getMaterial(this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBlock());
+        return this.blockids[this.getSectionIndex(y)].get(x, y & 0xF, z).getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
index 5a1b0f2352016497099c68c5bcd09a43ebe8bf3a..ef1e77729b12a9ee0b13fa283f8200cc0c3968ce 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -219,7 +219,7 @@ public class CraftBlock implements Block {
 
     @Override
     public Material getType() {
-        return CraftMagicNumbers.getMaterial(this.world.getBlockState(position).getBlock());
+        return this.world.getBlockState(this.position).getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     @Override
diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
index 2773f47d4e7a9432ab1ccebfcdc22317ef762099..b722a207c0e745bb172d93b90e1241d7bfa173ce 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -161,7 +161,7 @@ public class CraftBlockState implements BlockState {
 
     @Override
     public Material getType() {
-        return CraftMagicNumbers.getMaterial(this.data.getBlock());
+        return this.data.getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     public void setFlag(int flag) {
diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
index 448f90b7e15bca1fd0bcc70164e2ee9cb95f7c4e..3aa4a2ac3b81abc1446b7f7dae7f636438341790 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -59,7 +59,7 @@ public class CraftBlockData implements BlockData {
 
     @Override
     public Material getMaterial() {
-        return CraftMagicNumbers.getMaterial(this.state.getBlock());
+        return this.state.getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     public net.minecraft.world.level.block.state.BlockState getState() {
diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
index 35cf747196b43a0f1d9237fdc12424288962f8bd..54c7877f1da51ff8be467fac5e0a37b1fd573d37 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
@@ -95,7 +95,7 @@ public final class CraftChunkData implements ChunkGenerator.ChunkData {
 
     @Override
     public Material getType(int x, int y, int z) {
-        return CraftMagicNumbers.getMaterial(this.getTypeId(x, y, z).getBlock());
+        return this.getTypeId(x, y, z).getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     @Override