PaperMC/patches/server/0891-Fix-slime-spawners-not-spawning-outside-slime-chunks.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 15 Apr 2022 17:09:28 -0700
Subject: [PATCH] Fix slime spawners not spawning outside slime chunks

Fixes MC-50647 by just checking if the spawn type is a SPAWNER
and then bypassing the spawn check logic if on slimes if it is.

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 b6e78e8145ea78d532f22707c7525829c5778076..2e819d32915941bd77034ce599eb787610a6d666 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Slime.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Slime.java
@@ -325,6 +325,11 @@ public class Slime extends Mob implements Enemy {
 
     public static boolean checkSlimeSpawnRules(EntityType<Slime> type, LevelAccessor world, MobSpawnType spawnReason, BlockPos pos, Random random) {
         if (world.getDifficulty() != Difficulty.PEACEFUL) {
+            // Paper start - fix slime spawners; Fixes MC-50647
+            if (spawnReason == MobSpawnType.SPAWNER) {
+                return random.nextInt(10) == 0;
+            }
+            // Paper end
             // Paper start - Replace rules for Height in Swamp Biome
             final double maxHeightSwamp = world.getMinecraftWorld().paperConfig.slimeMaxSpawnHeightInSwamp;
             final double minHeightSwamp = world.getMinecraftWorld().paperConfig.slimeMinSpawnHeightInSwamp;