Paper/Spigot-Server-Patches/0583-Optimise-getType-calls.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <spottedleaf@spottedleaf.dev>
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/server/IBlockData.java b/src/main/java/net/minecraft/server/IBlockData.java
index 10a5901db1e0efe0b7d6958098bb0ae492a9e76f..e7aa8aca2458a7fea7bc3bf1335b04daeaba98c2 100644
--- a/src/main/java/net/minecraft/server/IBlockData.java
+++ b/src/main/java/net/minecraft/server/IBlockData.java
@@ -8,6 +8,19 @@ public class IBlockData extends BlockBase.BlockData {
 
     public static final Codec<IBlockData> b = a((Codec) IRegistry.BLOCK, Block::getBlockData).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 IBlockData(Block block, ImmutableMap<IBlockState<?>, Comparable<?>> immutablemap, MapCodec<IBlockData> mapcodec) {
         super(block, immutablemap, mapcodec);
     }
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
index 6cd662c9130e6282ab520d0d471f56d9a66da5ea..0160bf9e64f0a3befe60d9945648cb4dfd297877 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftChunkSnapshot.java
@@ -79,7 +79,7 @@ public class CraftChunkSnapshot implements ChunkSnapshot {
     public Material getBlockType(int x, int y, int z) {
         CraftChunk.validateChunkCoordinates(x, y, z);
 
-        return CraftMagicNumbers.getMaterial(blockids[y >> 4].a(x, y & 0xF, z).getBlock());
+        return blockids[y >> 4].a(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 3524b677525bf2bb529b797fe1f258efb34ac3fc..3baf7b75c65c9beba40945ba904315251b5b7a64 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
@@ -214,7 +214,7 @@ public class CraftBlock implements Block {
 
     @Override
     public Material getType() {
-        return CraftMagicNumbers.getMaterial(world.getType(position).getBlock());
+        return world.getType(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 0f89e776816ad4ecb6c3e54c2549692f1b5b6aae..36d7de6e6540e156499edb4b69b8bbaeb0d6dc54 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlockState.java
@@ -135,7 +135,7 @@ public class CraftBlockState implements BlockState {
 
     @Override
     public Material getType() {
-        return CraftMagicNumbers.getMaterial(data.getBlock());
+        return 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 590236ccc6c15f8c4ad15913fb3ac36d28414318..5207e58670b25d60886bfd66dfb9e8acd1552f5f 100644
--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
@@ -44,7 +44,7 @@ public class CraftBlockData implements BlockData {
 
     @Override
     public Material getMaterial() {
-        return CraftMagicNumbers.getMaterial(state.getBlock());
+        return state.getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     public IBlockData getState() {
diff --git a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
index 948a59217cca0f8dfa9d3befb61e679a67bf29bc..1510d80891156ba97ae59e39f928b97d0226b057 100644
--- a/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
+++ b/src/main/java/org/bukkit/craftbukkit/generator/CraftChunkData.java
@@ -73,7 +73,7 @@ public final class CraftChunkData implements ChunkGenerator.ChunkData {
 
     @Override
     public Material getType(int x, int y, int z) {
-        return CraftMagicNumbers.getMaterial(getTypeId(x, y, z).getBlock());
+        return getTypeId(x, y, z).getBukkitMaterial(); // Paper - optimise getType calls
     }
 
     @Override