ios - Spritekit框架长地面节点

Question

我想要一个始终与框架一样宽的接地节点。我目前拥有的代码是；

    ground.position = CGPointMake(0, 175)
    ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.size.width, 1))
    ground.physicsBody!.dynamic = false
    ground.physicsBody!.categoryBitMask = PhysicsCategory.ground
    ground.physicsBody?.contactTestBitMask = PhysicsCategory.ground
    ground.physicsBody?.collisionBitMask = PhysicsCategory.ground
    self.addChild(ground)

如何使其与框架一样宽？

Answer 1

尝试将宽度调整为场景大小或几乎只是屏幕大小

 ground.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: (scene?.size.width)!, height: ("specify your height"))