add config (useless now)

patches/server/0033-lithium-cached-hashcode.patch

@@ -0,0 +1,44 @@
+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 40f0e57bed6866bff69231b9135987ca53125ba3..1e358cdabca103d65410b340db96a1ad6e479c59 100644
+--- a/src/main/java/net/minecraft/world/level/block/Block.java
++++ b/src/main/java/net/minecraft/world/level/block/Block.java
+@@ -608,11 +608,18 @@ 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) {
+@@ -628,11 +635,7 @@ 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
+         }
+     }
+ }