ios - SpriteKit SKCameraNode 无法动画缩放

Question

我的 iOS 游戏使用 SpriteKit。我在场景中有一个相机节点。

var cam = SKCameraNode()
self.camera = cam

//THIS WORKS, view zoomed out to 2x
cam.setScale(2)

//I want to animate the zoom out, but this doesn't work
let zoomOutAction = SKAction.scaleTo(2, duration: 1)
cam.runAction(zoomOutAction)

Answer 1

我修复了它，只是添加了一行:self.addChild(cam)

var cam = SKCameraNode()
cam.position = CGPointMake(size.width/2, size.height/2)
self.addChild(cam)
self.camera = cam