Ios 碰撞检测SceneKit Swift

我使用委托SCNPphysicContactDelegate构建了一个具有冲突检测的应用程序。我尝试检测与SCNPhysicsContactDelegate的冲突，但它不起作用

什么是工作

这是我的密码

let CollisionCategorySpaceMan = 1
let CollisionCategoryEnemy = 2

func physicsWorld(world: SCNPhysicsWorld, didBeginContact contact: SCNPhysicsContact) {
    if contact.nodeB.physicsBody!.categoryBitMask == CollisionCategoryEnemy {
        print("Enemy HIT!--------")
    }
}




  override func viewDidLoad() {
        super.viewDidLoad()

let mainScene = createMainScene()

        mainScene.physicsWorld.contactDelegate = self

        mainScene.physicsWorld.gravity = SCNVector3Make(0, 0, 0)



        sceneView = self.view as! GameView
        sceneView.scene = mainScene
        sceneView.delegate = self

    }

这就是敌人

func setupEnemy(){
        space = space - 300
        let football2 = SCNScene(named: "art.scnassets/k.scn")
        let football21 = football2!.rootNode.childNodeWithName("football2", recursively: false)
        football21!.name = "Enemy"
        football21!.physicsBody = SCNPhysicsBody(type: .Dynamic, shape: nil)
        football21!.physicsBody!.categoryBitMask = CollisionCategoryEnemy
        football21!.physicsBody!.collisionBitMask = CollisionCategorySpaceMan
        football21!.position = SCNVector3(x: 0, y: 0, z: Float(space))
        sceneView.scene!.rootNode.addChildNode(football21!)
    }

这就是英雄

func createMainScene() -> SCNScene {
        let scene = SCNScene(named: "art.scnassets/football.scn")
        spaceManNode = scene!.rootNode.childNodeWithName("football", recursively: false)

        spaceManNode!.physicsBody = SCNPhysicsBody(type: .Dynamic, shape: nil)
        spaceManNode!.physicsBody!.categoryBitMask = CollisionCategorySpaceMan
        spaceManNode!.physicsBody!.contactTestBitMask = CollisionCategoryEnemy
        spaceManNode.name = "SpaceMan"

        setupLighting(scene!)
        setupCameras(scene!)

        return scene!
    }

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从iOS 9开始，您必须显式设置physicsBody的“contactTestBitMask”以获取联系人通知。似乎SetupForeign（）中缺少了该选项。我的游戏中的碰撞在iOS 8上运行良好，但在iOS 9上停止工作，直到我找到以下帖子：

---

希望这有帮助

在这种情况下，我发现有两行缺失：

你的敌人的目标或者什么应该是这样的

physicsBody?.categoryBitMask = PhysicsCategory.enemy // your enemy category (lets say 1)
physicsBody?.collisionBitMask = PhysicsCategory.player (with what can report collision lets say 2

你的英雄：

physicsBody?.categoryBitMask = PhysicsCategory.player  // the category is 2
physicsBody?.collisionBitMask = PhysicsCategory.enemy | PhysicsCategory.ball // can report collision with 1 and 3        
physicsBody?.contactTestBitMask = PhysicsCategory.enemy | PhysicsCategory.ball // when hitTest performed detect collision with 1 and 3

希望这有帮助，

---

关于

您是否检查了

didBeginContact

是否至少被调用？谁向您保证

nodeB

属于

CollisionCategoryEnemy

，而不是

nodeA

？我尝试两种方法都不起作用：'（看起来您没有在

spaceManNode

上设置

collisionBitMask

）。