swift - Sprite Kit 从未检测到我的碰撞

Question

当玩家 body 遇到怪物 body 时，函数 func didBeginContact(contact: SKPhysicsContact) 永远不会被调用。

我的类实现SKPhysicsContactDelegate

class GameScene: SKScene, SKPhysicsContactDelegate

属性collisionBitMask我评论它是因为我读到如果我们不放置它，节点可以与所有节点发生冲突

我像这样添加我的播放器:

bear.position = CGPoint(x:self.frame.width/20, y:self.frame.height/5)
bear.size = CGSize(width:  self.frame.width/7, height:  self.frame.height/5)
bear.physicsBody = SKPhysicsBody(rectangleOfSize: bear.frame.size)
bear.physicsBody?.dynamic = false;
bear.physicsBody?.categoryBitMask = PhysicsCategory.Player
bear.physicsBody?.contactTestBitMask = PhysicsCategory.Monster
//bear.physicsBody?.collisionBitMask = PhysicsCategory.Monster

我添加这样的怪物:

           let thePosition = CGPoint(x: positionX, y: (self.frame.height/7.4)*positionY)

        let monster =  SKSpriteNode(imageNamed: pattern as String)
        monster.size = CGSize(width:  self.frame.width/16, height:  self.frame.height/11)
        monster.name = name
        monster.position = thePosition


         monster.physicsBody = SKPhysicsBody(rectangleOfSize: monster.frame.size)



        monster.physicsBody?.dynamic = false
        monster.physicsBody?.categoryBitMask = PhysicsCategory.Monster // 3
        monster.physicsBody?.affectedByGravity = false
        monster.physicsBody?.contactTestBitMask = PhysicsCategory.Player // 4
        //platformNode.physicsBody?.collisionBitMask = PhysicsCategory.Player // 5


        addChild(monster)

我的物理类别

struct PhysicsCategory {
  static let None      : UInt32 = 0
  static let All       : UInt32 = UInt32.max
  static let Player: UInt32 = 0b1      // 1
  static let Monster   : UInt32 = 0b10       // 2
  static let Projectile: UInt32 = 0b100      // 3
  static let Plateforme: UInt32 = 0b1000      // 4
}

我有多个纹理，例如当玩家行走时我称之为:

    func walkingBear() {
    bear.runAction(    SKAction.repeatActionForever(SKAction.animateWithTextures(bearCoursFrames, timePerFrame: 0.1, resize: false, restore: true)), withKey:"cours")
  }

我像这样初始化 bearCoursFrames

  var walkFrames = [SKTexture]()
    var numImages : Int = bearAnimatedAtlas.textureNames.count
    for var i=1; i<=numImages/2; i++ {
        let bearTextureName = "cours\(i)"
        walkFrames.append(bearAnimatedAtlas.textureNamed(bearTextureName))
    }

    bearCoursFrames = walkFrames

请问我的错误在哪里，我在其他帖子中找不到解决方案 任何帮助将不胜感激

--------------------------------编辑------------------------- ----------------- 解决方案:我只需添加 self.physicalWorld.contactDelegate = self 现在就可以了。

Answer 1

答案很简单。有一条规则规定，至少必须将一个实体定义为动态实体才能注册联系人。

将玩家或其他 body 更改为动态，并且将检测到接触。

作为补充，如果您还没有启用物理视觉表示...这可能会有所帮助，因为有时由于实际物体未彼此相交而无法检测到接触，例如。当节点的 anchor 更改时，纹理和主体会错位(可以使用 SKPhysicsBody 类的适当初始化程序修复，但这是一个非常常见的错误)。