Swift : 变换 SKSpriteNode

Question

我正在尝试为 UIView 但为 SKSprite 节点实现此代码：

stopIcon.transform = CGAffineTransformMakeScale(0.01, 0.01)

UIView.animateWithDuration(0.5, animations: { () -> Void in
        self.stopIcon.transform = CGAffineTransformMakeScale(1.0, 1.0)
        })

我的SKSprite节点是这样设置的：

stopIcon = SKSpriteNode(imageNamed: "StopIcon")
    stopIcon?.size = CGSize(width: ((stopImage?.size.width)! * 0.75), height: ((stopImage?.size.height)! * 0.75))
    stopIcon?.position = CGPoint(x: self.size.width * 0.22, y: self.size.height * 0.91)
    self.addChild(stopIcon!)

谢谢大家

Answer 1

我猜你想在 0.5 秒内缩放 SKSpriteNode，从 0.1 -> 1.0（原始比例的十分之一到完整比例）。

使用 SpriteKit 的 SKAction class 可以这样实现：

//set the inital scale of node to 0.1
stopIcon.setScale(0.1)
//create action to scale skspritenode to scale of 1.0 over 0.5 seconds.
let scaleAction = SKAction.scaleTo(1.0, duration: 0.5)
//call on the action.
stopIcon.runAction(scaleAction)

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