From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Tue, 18 Jul 2023 14:43:18 +0800
Subject: [PATCH] Cache CubeVoxelShape shape array

This patch is Powered by Gale(https://github.com/GaleMC/Gale)

diff --git a/src/main/java/net/minecraft/world/phys/shapes/CubeVoxelShape.java b/src/main/java/net/minecraft/world/phys/shapes/CubeVoxelShape.java
index 110405e6e70d980d3e09f04d79562b32a7413071..8e44c1ae9f898f943d8c74fe34447546677be7d4 100644
--- a/src/main/java/net/minecraft/world/phys/shapes/CubeVoxelShape.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/CubeVoxelShape.java
@@ -5,6 +5,9 @@ import net.minecraft.core.Direction;
 import net.minecraft.util.Mth;
 
 public final class CubeVoxelShape extends VoxelShape {
+
+    private DoubleList[] list = null; // Leaves - cache CubeVoxelShape shape array
+
     protected CubeVoxelShape(DiscreteVoxelShape voxels) {
         super(voxels);
         this.initCache(); // Paper - optimise collisions
@@ -12,7 +15,19 @@ public final class CubeVoxelShape extends VoxelShape {
 
     @Override
     protected DoubleList getCoords(Direction.Axis axis) {
-        return new CubePointRange(this.shape.getSize(axis));
+        // Leaves start - cache CubeVoxelShape shape array
+        if (!top.leavesmc.leaves.LeavesConfig.cacheCubeVoxelShapeShapeArray) {
+            return new CubePointRange(this.shape.getSize(axis));
+        } else {
+            if (this.list == null) {
+                this.list = new DoubleList[Direction.Axis.VALUES.length];
+                for (Direction.Axis existingAxis : Direction.Axis.VALUES) {
+                    this.list[existingAxis.ordinal()] = new CubePointRange(this.shape.getSize(axis));
+                }
+            }
+            return this.list[axis.ordinal()];
+        }
+        // Leaves end - cache CubeVoxelShape shape array
     }
 
     @Override