49 lines
		
	
	
	
		
			2.5 KiB
			
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			49 lines
		
	
	
	
		
			2.5 KiB
			
		
	
	
	
		
			Diff
		
	
	
	
	
	
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: miclebrick <miclebrick@outlook.com>
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Date: Thu, 23 Aug 2018 11:45:32 -0400
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Subject: [PATCH] Optimize CraftBlockData Creation
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Avoids a hashmap lookup by cacheing a reference to the CraftBlockData
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and cloning it when one is needed.
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diff --git a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
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index 10f4015b8c36e4e27cf7d0745ba70b8a9e60aff3..57857cc33603cf278de424b540a3d4a5943584c9 100644
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--- a/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
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+++ b/src/main/java/net/minecraft/world/level/block/state/BlockBase.java
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@@ -375,6 +375,14 @@ public abstract class BlockBase {
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             this.o = blockbase_info.t;
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             this.p = blockbase_info.u;
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         }
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+        // Paper start - impl cached craft block data, lazy load to fix issue with loading at the wrong time
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+        private org.bukkit.craftbukkit.block.data.CraftBlockData cachedCraftBlockData;
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+
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+        public org.bukkit.craftbukkit.block.data.CraftBlockData createCraftBlockData() {
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+            if (cachedCraftBlockData == null) cachedCraftBlockData = org.bukkit.craftbukkit.block.data.CraftBlockData.createData(getBlockData());
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+            return (org.bukkit.craftbukkit.block.data.CraftBlockData) cachedCraftBlockData.clone();
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+        }
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+        // Paper end
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         public void a() {
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             if (!this.getBlock().o()) {
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diff --git a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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index 76fd1fea386d0e65c63c529dba772f01d9888407..ed88da727feddc319a650fb35710d16727f6dbd7 100644
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--- a/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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+++ b/src/main/java/org/bukkit/craftbukkit/block/data/CraftBlockData.java
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@@ -509,7 +509,17 @@ public class CraftBlockData implements BlockData {
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         return craft;
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     }
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+    // Paper start - optimize creating BlockData to not need a map lookup
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+    static {
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+        // Initialize cached data for all IBlockData instances after registration
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+        Block.REGISTRY_ID.iterator().forEachRemaining(IBlockData::createCraftBlockData);
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+    }
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     public static CraftBlockData fromData(IBlockData data) {
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+        return data.createCraftBlockData();
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+    }
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+
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+    public static CraftBlockData createData(IBlockData data) {
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+        // Paper end
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         return MAP.getOrDefault(data.getBlock().getClass(), CraftBlockData::new).apply(data);
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     }
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