我的代码检测到与精灵的碰撞但没有发生碰撞？ - Swift

Question

这是我的 didBeginContact：

  func didBeginContact(contact: SKPhysicsContact) {


    let firstBody = contact.bodyA
    let secondBody = contact.bodyB


    let ballWasContacted = firstBody.categoryBitMask == PhysicsCat.Ball || secondBody.categoryBitMask == PhysicsCat.Ball
    let wallWasContacted = firstBody.categoryBitMask == PhysicsCat.Wall || secondBody.categoryBitMask == PhysicsCat.Wall
    let wallCheckWasContacted = firstBody.categoryBitMask == PhysicsCat.wallSpace || secondBody.categoryBitMask == PhysicsCat.wallSpace
    let scoreWasContacted = firstBody.categoryBitMask == PhysicsCat.Score || secondBody.categoryBitMask == PhysicsCat.Score
    let boundaryWasContacted = firstBody.categoryBitMask == PhysicsCat.Boundaries || secondBody.categoryBitMask == PhysicsCat.Boundaries


    if boundaryWasContacted {

        print("I collided with the boundary.")

        }

这是我的边界精灵节点：

  let boundary = SKSpriteNode(color: SKColor.whiteColor(), size: CGSize(width: 50, height: 150))
    boundary.name = "boundary"
    boundary.position = CGPoint(x: self.frame.width / 1.37, y: self.frame.height / 2)
    boundary.physicsBody = SKPhysicsBody(rectangleOfSize: boundary.size)
    boundary.physicsBody!.categoryBitMask = PhysicsCat.Boundaries
    boundary.physicsBody?.contactTestBitMask = PhysicsCat.Ball
    boundary.physicsBody?.collisionBitMask = PhysicsCat.Ball
    boundary.physicsBody!.dynamic = false
    boundary.physicsBody!.friction = 0
    boundary.physicsBody!.restitution = 1
    boundary.zPosition = 5
    self.addChild(boundary)

最后这是我的球：

  Ball = SKSpriteNode(imageNamed: "Ball")
    Ball.size = CGSize(width: 38, height: 38)
    Ball.position = CGPoint(x: self.frame.width / 2, y: self.frame.height / 2)
    Ball.physicsBody = SKPhysicsBody(circleOfRadius: Ball.frame.width / 2)
    Ball.physicsBody?.categoryBitMask = PhysicsCat.Ball
    Ball.physicsBody?.collisionBitMask = PhysicsCat.Wall
    Ball.physicsBody?.contactTestBitMask =  PhysicsCat.Wall | PhysicsCat.Score | PhysicsCat.wallSpace | PhysicsCat.Boundaries
    Ball.physicsBody?.affectedByGravity = false
    Ball.physicsBody?.dynamic = true
    Ball.physicsBody!.allowsRotation = true
    Ball.zRotation = CGFloat(M_PI)
    self.addChild(Ball)

当我接触到边界时，它打印"I collided with the boundary"，但我直接穿过它。我的代码中到底缺少什么才能使球和边界之间发生实际碰撞？

Answer 1

将您的 didBeginContact 更改为在联系时做一些事情。

有人问过这个问题，这个线程中的解决方案是在您的 didBeginContact 中应用 Impluse。

目前，您只有打印语句。尝试添加此答案中的相关代码。

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