public List<Mob> getMobs(int y, Environment environment, Biome biome)
	{
		List<Mob> mobList = new ArrayList<Mob>(mobs.size());
		
		for (Mob mob : mobs)
		{
			SpawnRequirements r = mob.getRequirements();
			if (r == null || (r.meetsHeightRequirements(y) && r.meetsEnvironmentRequirements(environment) && r.meetsBiomeRequirements(biome)))
				mobList.add(mob);
		}
		
		return mobList;
	}