DivineMC/patches/server/0029-lithium-cached-hashcode.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: jellysquid3 <jellysquid3@users.noreply.github.com>
Date: Wed, 15 Dec 2021 11:30:23 -0500
Subject: [PATCH] lithium: cached hashcode

Original code by CaffeineMC, licensed under GNU Lesser General Public License v3.0
You can find the original code on https://github.com/CaffeineMC/lithium-fabric (Yarn mappings)

diff --git a/src/main/java/net/minecraft/world/level/block/Block.java b/src/main/java/net/minecraft/world/level/block/Block.java
index a85e788ff5a55288df753a0e630b32270760f8de..ebb3808fbaaec82283db0839335b5efca28d4881 100644
--- a/src/main/java/net/minecraft/world/level/block/Block.java
+++ b/src/main/java/net/minecraft/world/level/block/Block.java
@@ -604,11 +604,18 @@ public class Block extends BlockBehaviour implements ItemLike {
         private final BlockState first;
         private final BlockState second;
         private final Direction direction;
+        private int hash; // JettPack
 
         public BlockStatePairKey(BlockState self, BlockState other, Direction facing) {
             this.first = self;
             this.second = other;
             this.direction = facing;
+            // JettPack start - lithium: cached_hashcode
+            int hash = this.first.hashCode();
+            hash = 31 * hash + this.second.hashCode();
+            hash = 31 * hash + this.direction.hashCode();
+            this.hash = hash;
+            // JettPack end
         }
 
         public boolean equals(Object object) {
@@ -624,11 +631,7 @@ public class Block extends BlockBehaviour implements ItemLike {
         }
 
         public int hashCode() {
-            int i = this.first.hashCode();
-
-            i = 31 * i + this.second.hashCode();
-            i = 31 * i + this.direction.hashCode();
-            return i;
+            return this.hash; // JettPack
         }
     }
 }