ios - Sprite 物理在 Swift (SpriteKit) 中显示但未在视觉上显示

Question

我设置了 Sprite 的物理体、z位置、颜色、大小等，但它不会在视觉上出现。 (它具有我的 Sprite 的最高 zPosition，是的，我确实导入了 SpriteKit)

let wall = SKSpriteNode()
wall.physicsBody?.velocity = CGVector(dx: 0, dy: 0)
//Takes screen size / width to make each piece one/(value set by "maze" at top) of the screen
let width: CGFloat = (UIScreen.main.bounds.width) / CGFloat(mazeSize)
let height: CGFloat = (UIScreen.main.bounds.height - 134) / CGFloat(mazeSize) //subtract so there's extra room on top+bottom of screen
wall.color = UIColor(ciColor: .black)
wall.isHidden = false
wall.physicsBody = SKPhysicsBody(rectangleOf: CGSize(width: width, height: height))
wall.physicsBody?.restitution = 0
wall.physicsBody?.friction = 0
wall.physicsBody?.isDynamic = false
wall.zPosition = 4
//sets up x+y location based on row count and which row this is on
//locations (ONLY positive)
let xLoc: CGFloat = ((UIScreen.main.bounds.width) / CGFloat((mazeSize/2))) * CGFloat(i/mazeSize)
let yLoc: CGFloat = ((UIScreen.main.bounds.height - 134) / CGFloat(mazeSize/2)) * CGFloat(i/mazeSize)
if((i/mazeSize) > (mazeSize/2)){ //if positive on x
    wall.position.x = xLoc
}
else{ //if negative on x
    wall.position.x = -xLoc
}
if(i > ((mazeSize^2)/2)){ //if positive on y
    wall.position.x = yLoc
}
else{ //if negative on y
    wall.position.y = yLoc
}

我用它在迷宫中设置墙壁(是的，我知道 x+y 位置是错误的，但它们仍然“看起来”聚集在中间)，但只显示这些节点的物理特性。有没有办法让这些黑墙出现？

Answer 1

Sprite 节点的几何形状和物理主体的几何形状不必相关，在这种情况下，您创建了一个矩形物理主体和基本上一个空的 Sprite 节点。尝试类似的事情

let wall = SKSpriteNode(color: .black, size: CGSize(width: 100, height: 100)

或者使用SKSpriteNode(texture:)初始化器。