public void switchPhase(){
		if(this.gamePhase!=null){
			switch(gamePhase){
			case BlockPhase1:
				this.gamePhase = GamePhase.PowerupPhase;
				break;
			case PowerupPhase:
				this.gamePhase = GamePhase.BlockPhase2;
				break;
			case BlockPhase2:
				switchTurn();
				this.gamePhase = GamePhase.BlockPhase1;
				break;
			}
		}
		gui.setPhase(this.gamePhase);
	}