PaperMC/patches/server/0438-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..e33a4ade1dd40ba482e2ca51c3b3ddad284106c3 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 +10,16 @@ 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.block.CraftBlockType.minecraftToBukkit(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 f2ce97e46cdbda0f8960eed9b601c797d8eaef48..85029f1acfdbb411d9ebdf95838d6db3898f4e58 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
@@ -99,7 +99,7 @@ public class CraftChunkSnapshot implements ChunkSnapshot {
     public Material getBlockType(int x, int y, int z) {
         this.validateChunkCoordinates(x, y, z);
 
-        return CraftBlockType.minecraftToBukkit(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 a586442422a2b2c06b785af0d261d3e19eb1d59b..aa644231425b9622437538b5c092d4064a40cced 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -220,7 +220,7 @@ public class CraftBlock implements Block {
 
     @Override
     public Material getType() {
-        return CraftBlockType.minecraftToBukkit(this.world.getBlockState(this.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 8e5279abccdd074d565f246420b2b12b81189b67..928a301627134b49915b0ceaeabb7dc350605dc2 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -170,7 +170,7 @@ public class CraftBlockState implements BlockState {
 
     @Override
     public Material getType() {
-        return CraftBlockType.minecraftToBukkit(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 587396f5ed01939cd3ddce10fecf86ba80eb9c73..01a1479711b7f7bb87db275a1edfab5a95464cca 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -61,7 +61,7 @@ public class CraftBlockData implements BlockData {
 
     @Override
     public Material getMaterial() {
-        return CraftBlockType.minecraftToBukkit(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 c96aaa185d9d929cb19f427be82053f0cfa13bad..0fb580530d0b6d4d63ea4b85fec9240eb5c74df4 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
@@ -96,7 +96,7 @@ public final class CraftChunkData implements ChunkGenerator.ChunkData {
 
     @Override
     public Material getType(int x, int y, int z) {
-        return CraftBlockType.minecraftToBukkit(this.getTypeId(x, y, z).getBlock());
+        return this.getTypeId(x, y, z).getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     @Override