我正在尝试向视图中添加4个精灵,在假想方块的另一个角落中添加每个精灵,然后围绕中心旋转所有精灵。完成此任务的最佳方法是什么?
我知道如何旋转每一个精灵,但也许有一种方法可以将多个精灵分组,比如将它们放入容器中?
答案 0 :(得分:1)
这是我的工作代码。
import SpriteKit
let player = SKNode()
let playerTopLeft = SKSpriteNode(color: UIColor.yellowColor(), size: CGSizeMake(20, 20))
let playerTopRight = SKSpriteNode(color: UIColor.yellowColor(), size: CGSizeMake(20, 20))
let playerBottomRight = SKSpriteNode(color: UIColor.yellowColor(), size: CGSizeMake(20, 20))
let playerBottomLeft = SKSpriteNode(color: UIColor.yellowColor(), size: CGSizeMake(20, 20))
class GameScene: SKScene {
override func didMoveToView(view: SKView) {
backgroundColor = SKColor.blackColor()
player.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame))
addChild(player)
playerTopLeft.position = CGPoint(x:-40, y:-40)
player.addChild(playerTopLeft)
playerTopRight.position = CGPoint(x:40, y:-40)
player.addChild(playerTopRight)
playerBottomRight.position = CGPoint(x:40, y:40)
player.addChild(playerBottomRight)
playerBottomLeft.position = CGPoint(x:-40, y:40)
player.addChild(playerBottomLeft)
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
for touch in touches {
let rotate = SKAction.rotateByAngle(CGFloat(-M_PI_2), duration:1)
player.runAction(rotate)
}
}
}