From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Thu, 1 Dec 2022 14:18:46 +0100
Subject: [PATCH] Cache world generator sea level

License: LGPL-3.0 (https://www.gnu.org/licenses/lgpl-3.0.html)
Gale - https://galemc.org

This patch is based on the following mixin:
"me/jellysquid/mods/lithium/mixin/gen/cached_generator_settings/NoiseChunkGeneratorMixin.java"
By: SuperCoder7979 <k.pranav@gmail.com>
As part of: Lithium (https://github.com/CaffeineMC/lithium-fabric)
Licensed under: LGPL-3.0 (https://www.gnu.org/licenses/lgpl-3.0.html)

diff --git a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
index 0d8fd4eaf912eb4d40bb9f600dd2a8d5c21ab572..66205f6d99c629ce0e7e7d7b29394674bde115fb 100644
--- a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
@@ -62,12 +62,17 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
     private static final BlockState AIR = Blocks.AIR.defaultBlockState();
     public final Holder<NoiseGeneratorSettings> settings;
     private final Supplier<Aquifer.FluidPicker> globalFluidPicker;
+    private int cachedSeaLevel; // Gale - Lithium - cache world generator sea level
 
     public NoiseBasedChunkGenerator(BiomeSource biomeSource, Holder<NoiseGeneratorSettings> settings) {
         super(biomeSource);
         this.settings = settings;
         this.globalFluidPicker = Suppliers.memoize(() -> {
-            return NoiseBasedChunkGenerator.createFluidPicker((NoiseGeneratorSettings) settings.value());
+            // Gale start - Lithium - cache world generator sea level
+            var fluidPicker = NoiseBasedChunkGenerator.createFluidPicker((NoiseGeneratorSettings) settings.value());
+            this.cachedSeaLevel = settings.value().seaLevel();
+            return fluidPicker;
+            // Gale end - Lithium - cache world generator sea level
         });
     }
 
@@ -397,7 +402,7 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
 
     @Override
     public int getSeaLevel() {
-        return ((NoiseGeneratorSettings) this.settings.value()).seaLevel();
+        return this.cachedSeaLevel; // Gale - Lithium - cache world generator sea level
     }
 
     @Override