Paper/patches/server/0037-Configurable-mob-spawner-tick-rate.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Sudzzy <originmc@outlook.com>
Date: Wed, 2 Mar 2016 15:03:53 -0600
Subject: [PATCH] Configurable mob spawner tick rate


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index bf0c767af0ca5129b69b3c8dcfe54cdee989854b..cff814a123e02aea96197c1be092c210c2fcf781 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -217,4 +217,9 @@ public class PaperWorldConfig {
     private void disableIceAndSnow(){
         disableIceAndSnow = getBoolean("disable-ice-and-snow", false);
     }
+
+    public int mobSpawnerTickRate;
+    private void mobSpawnerTickRate() {
+        mobSpawnerTickRate = getInt("mob-spawner-tick-rate", 1);
+    }
 }
diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
index a003e1c0d99a4d4c88269ea5bad250ba73bbc9c9..65744b55f06c225745e3e145e5f5e60ebefd304c 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -46,6 +46,7 @@ public abstract class BaseSpawner {
     public int requiredPlayerRange;
     public int spawnRange;
     private final Random random;
+    private int tickDelay = 0; // Paper
 
     public BaseSpawner() {
         this.spawnPotentials = BaseSpawner.EMPTY_POTENTIALS;
@@ -101,13 +102,18 @@ public abstract class BaseSpawner {
     }
 
     public void serverTick(ServerLevel world, BlockPos pos) {
+        // Paper start - Configurable mob spawner tick rate
+        if (spawnDelay > 0 && --tickDelay > 0) return;
+        tickDelay = world.paperConfig.mobSpawnerTickRate;
+        if (tickDelay == -1) { return; } // If disabled
+        // Paper end
         if (this.isNearPlayer(world, pos)) {
-            if (this.spawnDelay == -1) {
+            if (this.spawnDelay < -tickDelay) {
                 this.delay(world, pos);
             }
 
             if (this.spawnDelay > 0) {
-                --this.spawnDelay;
+                this.spawnDelay -= tickDelay; // Paper
             } else {
                 boolean flag = false;
 
@@ -156,8 +162,7 @@ public abstract class BaseSpawner {
                                 ((Mob) entity).finalizeSpawn(world, world.getCurrentDifficultyAt(entity.blockPosition()), MobSpawnType.SPAWNER, (SpawnGroupData) null, (CompoundTag) null);
                             }
                             // Spigot Start
-                            if ( entityinsentient.level.spigotConfig.nerfSpawnerMobs )
-                            {
+                            if (entityinsentient.level.spigotConfig.nerfSpawnerMobs) {
                                 entityinsentient.aware = false;
                             }
                             // Spigot End