private static Creep CreateAndShowCreep(this GameLevel gameLevel, CreepType type,
			Vector2D spawnPoint, Vector2D finalTarget)
		{
			var creep = new Creep(type, spawnPoint) { FinalTarget = finalTarget };
			creep.RenderModel();
			creep.IsDead += () =>
			{
				gameLevel.EarnGold((int)creep.GetStatValue("Gold"));
				gameLevel.DeadCreepCount++;
				gameLevel.CheckChapterCompletion();
			};
			creep.ReachedExit += gameLevel.ReduceOneLife;
			return creep;
		}
		private static void ReduceOneLife(this GameLevel gameLevel)
		{
			Player.Current.LivesLeft--;
			gameLevel.ExitReachedCreepCount++;
			if (IsPlayerLifeLessThan20Percent())
				PlaySound(GameSounds.LowHealth);
			gameLevel.UpdateLife();
			gameLevel.CheckChapterCompletion();
		}