Hi ! today i have experimented a bit with the spawning of entitys, but how i can not allow/disallow the spawning but just changing the spawning rate ??
To reduce the spawn rate, you could make it so for a percentage of the time, the CreatureSpawnEvent would be cancelled. So, to make the spawn rate 50%... Code: @EventHandler public void onCreatureSpawn(CreatureSpawnEvent event) { if(Math.random() > 0.5) { event.setCancelled(true); } } Increasing the rate is a bit trickier. You could spawn an extra mob during each spawn, on the location the first mob spawned, to double the rate, I suppose...