import org.newdawn.slick.state.transition.CrossStateTransition; //导入依赖的package包/类
/**
 * @see org.newdawn.slick.state.BasicGameState#keyReleased(int, char)
 */
public void keyReleased(int key, char c) {
	
	if (key == Input.KEY_2) {
		GameState target = game.getState(TestState2.ID);
		
		final long start = System.currentTimeMillis();
		CrossStateTransition t = new CrossStateTransition(target) {				
			public boolean isComplete() {
				return (System.currentTimeMillis() - start) > 2000;
			}

			public void init(GameState firstState, GameState secondState) {
			}
		};
		
		game.enterState(TestState2.ID, t, new EmptyTransition());
	}
	if (key == Input.KEY_3) {
		game.enterState(TestState3.ID, new FadeOutTransition(Color.black), new FadeInTransition(Color.black));
	}
}