Ignore impossible spawn tick (#8493)

Co-authored-by: dannyball710 <dannyball710@gmail.com>

patches/server/Ignore-impossible-spawn-tick.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: dannyball710 <dannyball710@gmail.com>
+Date: Sat, 12 Feb 2022 23:42:48 +0800
+Subject: [PATCH] Ignore impossible spawn tick
+
+
+diff --git a/src/main/java/net/minecraft/world/level/BaseSpawner.java b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/BaseSpawner.java
++++ b/src/main/java/net/minecraft/world/level/BaseSpawner.java
+@@ -0,0 +0,0 @@ public abstract class BaseSpawner {
+     }
+ 
+     public void serverTick(ServerLevel world, BlockPos pos) {
++        if (spawnCount <= 0 || maxNearbyEntities <= 0) return; // Paper - Ignore impossible spawn tick
+         // Paper start - Configurable mob spawner tick rate
+         if (spawnDelay > 0 && --tickDelay > 0) return;
+         tickDelay = world.paperConfig().tickRates.mobSpawner;