Xcode Swift 碰撞无效

Question

我正在尝试让 "hero" 与 "wallGenerator" 发生碰撞（生成墙壁）

但无论我做什么它都不会碰撞。 Hero 会撞到地面而不是墙壁，因为它只会运行穿过它们。

这是 Hero 和 WallGenerator 的代码

    hero.position = CGPointMake(70, movingGround.position.y + movingGround.frame.size.height/2 + hero.frame.size.height/2)
    hero.physicsBody = SKPhysicsBody(rectangleOfSize: hero.size)
    hero.physicsBody!.dynamic = true
    hero.physicsBody!.allowsRotation = false
    hero.physicsBody!.categoryBitMask = heroCategory
    hero.physicsBody!.collisionBitMask = heroCategory | wallCategory
    hero.physicsBody!.contactTestBitMask = wallCategory | heroCategory | groundCategory

    wallGenerator = CSWallGenerator(color: UIColor.clearColor(), size: view.frame.size)
    wallGenerator.position = view.center
    wallGenerator.physicsBody = SKPhysicsBody(edgeLoopFromRect : wallGenerator.frame)
    wallGenerator.physicsBody!.dynamic = false
    wallGenerator.physicsBody!.categoryBitMask = wallCategory
    wallGenerator.physicsBody!.collisionBitMask = wallCategory | heroCategory

CSWallGenerator 代码

class CSWallGenerator: SKSpriteNode {

var generationTimer: NSTimer?

func startGeneratingWallsEvery(seconds: NSTimeInterval) {
    generationTimer = NSTimer.scheduledTimerWithTimeInterval(seconds, target: self, selector: "generateWall", userInfo: nil, repeats: true)


}

func generateWall() {
    var scale: CGFloat
    let rand = arc4random_uniform(2)
    if rand == 0 {
        scale = -1.0
    } else {
        scale = 1.0
    }

    let wall = CSWall()
    wall.position.x = size.width/2 + wall.size.width/2
    wall.position.y = scale * (kCSGroundHeight/2 + wall.size.height/2)
    addChild(wall)

}

}

Answer 1

您正在为 wallgenerator 设置物理体，但实际添加到场景中的是 cswall。 Cswall没有设置物理体

试试

wall.physicsBody = SKPhysicsBody(edgeLoopFromRect : wall.frame)

在您的 generateWall 函数中

Xcode Swift 碰撞无效

Xcode Swift Collision not working

ios

sprite-kit

skphysicsbody

swift