PaperMC/Remapped-Spigot-Server-Patches/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 2f7a5a4a5a7b29750cfd777e0bc5d19a14e93fa2..4de86b09c6bc3c1974ce61b550ccb73d37f6f170 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -176,4 +176,9 @@ 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 10058d3c3565382faa893b79119c5caf845bf29a..ed631d5bfba5d2543e8eed017a7c484ad3ddb453 100644
--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
+++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
@@ -41,6 +41,7 @@ public abstract class BaseSpawner {
     public int maxNearbyEntities = 6;
     public int requiredPlayerRange = 16;
     public int spawnRange = 4;
+    private int tickDelay = 0; // Paper
 
     public BaseSpawner() {}
 
@@ -70,6 +71,10 @@ public abstract class BaseSpawner {
     }
 
     public void tick() {
+        // Paper start - Configurable mob spawner tick rate
+        if (spawnDelay > 0 && --tickDelay > 0) return;
+        tickDelay = this.getLevel().paperConfig.mobSpawnerTickRate;
+        // Paper end
         if (!this.isNearPlayer()) {
             this.oSpin = this.spin;
         } else {
@@ -84,18 +89,18 @@ public abstract class BaseSpawner {
                 world.addParticle(ParticleTypes.SMOKE, d0, d1, d2, 0.0D, 0.0D, 0.0D);
                 world.addParticle(ParticleTypes.FLAME, d0, d1, d2, 0.0D, 0.0D, 0.0D);
                 if (this.spawnDelay > 0) {
-                    --this.spawnDelay;
+                    this.spawnDelay -= tickDelay; // Paper
                 }
 
                 this.oSpin = this.spin;
                 this.spin = (this.spin + (double) (1000.0F / ((float) this.spawnDelay + 200.0F))) % 360.0D;
             } else {
-                if (this.spawnDelay == -1) {
+                if (this.spawnDelay < -tickDelay) { // Paper
                     this.delay();
                 }
 
                 if (this.spawnDelay > 0) {
-                    --this.spawnDelay;
+                    this.spawnDelay -= tickDelay; // Paper
                     return;
                 }