Paper/patches/server/0939-Per-world-ticks-per-spawn-settings.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sat, 13 Nov 2021 12:36:26 -0800
Subject: [PATCH] Per world ticks per spawn settings


diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 83537aa240ebff8dd19b450956730dc3d4f355a0..ffe894f3034a967f7e3d820c6416acb8adbcfb84 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -186,6 +186,15 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         return this.getChunkIfLoaded(chunkX, chunkZ) != null;
     }
     // Paper end - Use getChunkIfLoadedImmediately
+    // Paper start - per world ticks per spawn
+    private int getTicksPerSpawn(SpawnCategory spawnCategory) {
+        final int perWorld = this.paperConfig().entities.spawning.ticksPerSpawn.getInt(CraftSpawnCategory.toNMS(spawnCategory));
+        if (perWorld >= 0) {
+            return perWorld;
+        }
+        return this.getCraftServer().getTicksPerSpawns(spawnCategory);
+    }
+    // Paper end
 
 
     public abstract ResourceKey<LevelStem> getTypeKey();
@@ -199,7 +208,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         // CraftBukkit Ticks things
         for (SpawnCategory spawnCategory : SpawnCategory.values()) {
             if (CraftSpawnCategory.isValidForLimits(spawnCategory)) {
-                this.ticksPerSpawnCategory.put(spawnCategory, (long) this.getCraftServer().getTicksPerSpawns(spawnCategory));
+                this.ticksPerSpawnCategory.put(spawnCategory, this.getTicksPerSpawn(spawnCategory)); // Paper
             }
         }