From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Doc <nachito94@msn.com>
Date: Mon, 2 Aug 2021 11:24:39 -0400
Subject: [PATCH] Add configurable height for slime spawn


diff --git a/src/main/java/net/minecraft/world/entity/monster/Slime.java b/src/main/java/net/minecraft/world/entity/monster/Slime.java
index 37724831ba9db2d0fb2e7756816e0355bc760815..cd964e5cded6a74cb9dcf27b4134f944764062cd 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Slime.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Slime.java
@@ -336,7 +336,11 @@ public class Slime extends Mob implements Enemy {
                     return checkMobSpawnRules(type, world, spawnReason, pos, random);
                 }
 
-                if (world.getBiome(pos).is(BiomeTags.ALLOWS_SURFACE_SLIME_SPAWNS) && pos.getY() > 50 && pos.getY() < 70 && random.nextFloat() < 0.5F && random.nextFloat() < world.getMoonBrightness() && world.getMaxLocalRawBrightness(pos) <= random.nextInt(8)) {
+                // Paper start - Replace rules for Height in Swamp Biome
+                final double maxHeightSwamp = world.getMinecraftWorld().paperConfig().entities.spawning.slimeSpawnHeight.surfaceBiome.maximum;
+                final double minHeightSwamp = world.getMinecraftWorld().paperConfig().entities.spawning.slimeSpawnHeight.surfaceBiome.minimum;
+                if (world.getBiome(pos).is(BiomeTags.ALLOWS_SURFACE_SLIME_SPAWNS) && pos.getY() > minHeightSwamp && pos.getY() < maxHeightSwamp && random.nextFloat() < 0.5F && random.nextFloat() < world.getMoonBrightness() && world.getMaxLocalRawBrightness(pos) <= random.nextInt(8)) {
+                // Paper end
                     return checkMobSpawnRules(type, world, spawnReason, pos, random);
                 }
 
@@ -347,7 +351,10 @@ public class Slime extends Mob implements Enemy {
                 ChunkPos chunkcoordintpair = new ChunkPos(pos);
             boolean flag = world.getMinecraftWorld().paperConfig().entities.spawning.allChunksAreSlimeChunks || WorldgenRandom.seedSlimeChunk(chunkcoordintpair.x, chunkcoordintpair.z, ((WorldGenLevel) world).getSeed(), world.getMinecraftWorld().spigotConfig.slimeSeed).nextInt(10) == 0; // Spigot // Paper
 
-                if (random.nextInt(10) == 0 && flag && pos.getY() < 40) {
+                // Paper start - Replace rules for Height in Slime Chunks
+                final double maxHeightSlimeChunk = world.getMinecraftWorld().paperConfig().entities.spawning.slimeSpawnHeight.slimeChunk.maximum;
+                if (random.nextInt(10) == 0 && flag && pos.getY() < maxHeightSlimeChunk) {
+                // Paper end
                     return checkMobSpawnRules(type, world, spawnReason, pos, random);
                 }
             }