我有一个 CGPoint: BallVelocity = CGPointMake (kBallSpeedX,kBallSpeedX); 我想要一个标签 (xVelocityLabel) 来查看 CGPoint 的“ BallVelocity.x” 值。 我已经尝试过 : [xVeellityLabel...

我正在做一个游戏,我正试图发射两种不同类型的子弹,如果子弹分别是单击和双击。这是我在触摸中的开始方法: - (避免)...

In my application I am developing a sort of tile system. Instead of doing my tiles manually I am planning on having UIImageViews that "snap" to a specific location. Here s my question: How can I ...