iOS:如何设置SKSpriteNode的程序化alpha掩码

Question

我能够在项目的.sks文件中设置我自己的自定义对象的alpha掩码,但我不知道如何以编程方式进行.

Answer 1

更新:刚想通了.

let presetTexture = SKTexture(imageNamed: "YOURIMAGE.png")
presetObject = SKSpriteNode(texture: presetTexture)
presetObject.physicsBody = SKPhysicsBody(texture: presetTexture, size: presetTexture.size())