Swift Sprite-Kit - 在角落中的位置

Question

enemyFromCorner1.position = CGPoint(x: 0, y: 1) 
enemyFromCorner2.position = CGPoint(x: 0, y: 0) 
enemyFromCorner3.position = CGPoint(x: 1, y: 0) 
enemyFromCorner4.position = CGPoint(x: 1, y: 1) 

我希望我的敌人在各个角落。我究竟做错了什么？

我想要4个节点在四角产卵。带有SpriteKit和Swift的左上，右上，左下和右下。

现在，我把它们都放在左下角。

而且，基于此： https://developer.apple.com/library/ios/documentation/GraphicsAnimation/Conceptual/SpriteKit_PG/Nodes/Nodes.html 代码应该是正确的。

Answer 1

没关系，我整理对我自己：

enemyFromCorner1.position = CGPoint(x: size.width, y: size.height) 
enemyFromCorner2.position = CGPoint(x: size.width - size.width, y: size.height) 
enemyFromCorner3.position = CGPoint(x: size.width, y: size.height - size.height) 
enemyFromCorner4.position = CGPoint(x: size.width - size.width, y: size.height - size.height)