swift 即使没有碰撞位掩码，skspritenode 也会发生碰撞

Question

scorenode = SKSpriteNode()
    scorenode.size = CGSize(width: self.frame.width * 0.2, height: 1)
    scorenode.physicsBody = SKPhysicsBody(rectangleOf: scorenode.size)
    scorenode.color = .red
    scorenode.physicsBody?.affectedByGravity = false
    scorenode.physicsBody?.isDynamic = false

    scorenode.physicsBody?.categoryBitMask = PhysicsCategory.score
    scorenode.physicsBody?.contactTestBitMask = PhysicsCategory.circle
    scorenode.physicsBody?.collisionBitMask = 0


    obstaclePair = SKNode()
    obstaclePair.name = "obstaclePair"

    rightObstacle = SKSpriteNode(imageNamed:"square")
    rightObstacle.size = CGSize(width: self.frame.width * 0.8, height: self.frame.height / 10)

    rightObstacle.color = oColor
    rightObstacle.colorBlendFactor = 1.0
    rightObstacle.physicsBody = SKPhysicsBody(rectangleOf: rightObstacle.size)

    rightObstacle.physicsBody?.categoryBitMask = PhysicsCategory.obstacle
    rightObstacle.physicsBody?.collisionBitMask = PhysicsCategory.circle
    rightObstacle.physicsBody?.contactTestBitMask = PhysicsCategory.circle
    rightObstacle.physicsBody?.isDynamic = false

    leftObstacle = SKSpriteNode(imageNamed:"square")
    leftObstacle.size = CGSize(width: self.frame.width * 0.8 , height: self.frame.height / 10)
    leftObstacle.physicsBody = SKPhysicsBody(rectangleOf: leftObstacle.size)

    leftObstacle.color = oColor
    leftObstacle.colorBlendFactor = 1.0
    leftObstacle.physicsBody?.categoryBitMask = PhysicsCategory.obstacle
    leftObstacle.physicsBody?.collisionBitMask = PhysicsCategory.circle
    leftObstacle.physicsBody?.contactTestBitMask = PhysicsCategory.circle
    leftObstacle.physicsBody?.isDynamic = false
    circle = SKSpriteNode(imageNamed: "Circle")


circle.size = CGSize(width: 50, height: 50)
    circle.position = CGPoint(x: self.frame.width / 2, y: self .frame.height / 4)
    circle.color = .blue
    circle.colorBlendFactor = 1.0
    circle.physicsBody = SKPhysicsBody(circleOfRadius: circle.frame.height / 2)
    circle.physicsBody?.categoryBitMask = PhysicsCategory.circle
    circle.physicsBody?.collisionBitMask = PhysicsCategory.obstacle
    circle.physicsBody?.contactTestBitMask = PhysicsCategory.obstacle | PhysicsCategory.score
    circle.physicsBody?.affectedByGravity = false
    circle.physicsBody?.isDynamic = true
    circle.zPosition = 10

这是我项目的物理部分，我有一个圆形 SKSpritenode 和一个分数节点 SKSpritenode。它们不应该发生碰撞，我也没有为它们都设置碰撞位掩码，但它们仍然会发生碰撞。我做错了什么？

Answer 1

如果你没有做任何与分数节点相关的物理，为什么不把它做成一个标签节点并从中删除物理。

Answer 2

你有

 static let circle : UInt32 = 0x1 << 1
 static let obstacle : UInt32 = 0x1 << 1
 static let score : UInt32 = 0x1 << 1

你需要

static let circle : UInt32 = 0x1 << 0
static let obstacle : UInt32 = 0x1 << 1
static let score : UInt32 = 0x1 << 2

swift 即使没有碰撞位掩码，skspritenode 也会发生碰撞

swift skspritenodes coliding even thought there is no collision bit mask

collision

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skspritenode

swift