Question

我有两个障碍。我可以拖动它们中的一个（精灵）。我想要的是，当我拖动一个障碍并用它击中另一个障碍时，另一个将受到撞击的影响，并通过向另一个方向琢磨来遵循物理定律。

到目前为止，这是我的代码。

任何人都知道如何实现这一目标？感谢

func addSprite() {
    sprite.physicsBody = SKPhysicsBody(circleOfRadius: sprite.size.width / 2)
    sprite.position = CGPoint(x: size.width * 0.35, y: size.height * 0.5)
    sprite.physicsBody?.dynamic = false
    sprite.physicsBody?.allowsRotation = false
    sprite.physicsBody?.restitution = 1.0
    sprite.physicsBody?.categoryBitMask = UInt32(balCategory)
    sprite.physicsBody?.contactTestBitMask = UInt32(obstacleCategory)
    sprite.physicsBody?.friction = 0.0
    sprite.physicsBody?.angularDamping = 0.0
    sprite.physicsBody?.linearDamping = 0.0
    sprite.physicsBody?.usesPreciseCollisionDetection = true
    sprite.physicsBody?.collisionBitMask = 0
    addChild(sprite)
}
func addObstacle() {
    treat.setScale(0.5)
    treat.physicsBody = SKPhysicsBody(rectangleOfSize: treat.size)
    treat.physicsBody?.dynamic = false
    treat.physicsBody?.categoryBitMask = UInt32(obstacleCategory)
    treat.physicsBody?.contactTestBitMask = UInt32(balCategory)
    treat.physicsBody?.collisionBitMask = 0
    treat.physicsBody?.usesPreciseCollisionDetection = true
    treat.name = "treat"

    treat.position = CGPointMake(self.frame.size.width / 2, self.frame.size.height / 2)
    self.addChild(treat)
}

Answer 1

您要做的就是将sprite.physicsBody?.collisionBitMask = 0和treat.physicsBody?.collisionBitMask = 0切换为sprite.physicsBody?.collisionBitMask = UInt32(obstacleCategory)作为您的第一个功能treat.physicsBody?.collisionBitMask = UInt32(balCategory)

将此值设置为零会使它在碰撞时不与物理相互作用，请告诉我这是否有效。

碰撞检测swift sprite kit。

1 个答案: