Repo-Mirror/Leaf
9
0
Fork 0
mirror of https://github.com/Winds-Studio/Leaf.git synced 2026-01-04 15:41:40 +00:00
Code Issues Releases Activity

Fast BiomeManager seed obfuscation

Browse Source
This commit is contained in:
HaHaWTH
2025-06-14 04:09:07 +14:00
parent 2d193b574b
commit 8e2099e975
2 changed files with 65 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
leaf-server/minecraft-patches/features/0280-Fast-BiomeManager-seed-obfuscation.patch Normal file
View File

@@ -0,0 +1,31 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: HaHaWTH <102713261+HaHaWTH@users.noreply.github.com>
Date: Tue, 9 Nov 2077 00:00:00 +0800
Subject: [PATCH] Fast BiomeManager seed obfuscation
Pretty tiny optimization, but better than nothing
diff --git a/net/minecraft/world/level/biome/BiomeManager.java b/net/minecraft/world/level/biome/BiomeManager.java
index 00122472991ba0c1a0ea77053aad71cdfa92a7bd..2d3cfa8659d882585b9e698ac8edf5c704623b95 100644
--- a/net/minecraft/world/level/biome/BiomeManager.java
+++ b/net/minecraft/world/level/biome/BiomeManager.java
@@ -34,9 +34,18 @@ public class BiomeManager {
// Leaf end - cache getBiome
}
+ // Leaf start - Replace SHA-256 with XXHash
+ private static final net.jpountz.xxhash.XXHash64 XXHASH = net.jpountz.xxhash.XXHashFactory.fastestInstance().hash64();
public static long obfuscateSeed(long seed) {
- return Hashing.sha256().hashLong(seed).asLong();
+ if (org.dreeam.leaf.config.modules.opt.FastBiomeManagerSeedObfuscation.enabled) {
+ java.nio.ByteBuffer buf = java.nio.ByteBuffer.allocate(8);
+ buf.putLong(0, seed);
+ return XXHASH.hash(buf, org.dreeam.leaf.config.modules.opt.FastBiomeManagerSeedObfuscation.seedObfuscationKey);
+ } else {
+ return Hashing.sha256().hashLong(seed).asLong();
+ }
}
+ // Leaf end - Replace SHA-256 with XXHash
public BiomeManager withDifferentSource(BiomeManager.NoiseBiomeSource newSource) {
return new BiomeManager(newSource, this.biomeZoomSeed);