Question

我有一个玩家和一面墙，每当玩家走进墙壁时它就会推开它。墙是静态的，玩家是动态的，任何人都知道如何解决这个问题？

玩家代码：

player.texture = SKTexture(imageNamed: "player")
player.position = CGPoint(x: 0 + player.frame.width / 2,y:     self.frame.height + player.frame.height / 2)
player.zPosition = 2
player.physicsBody?.affectedByGravity = true
player.physicsBody?.dynamic = true
player.physicsBody?.allowsRotation = false
player.physicsBody?.pinned = false
player.physicsBody?.mass = 0.18
player.physicsBody?.restitution = 0

移动播放器的代码：

let moveForward = SKAction.moveByX(1, y: 0, duration: 0.01)

墙代码：

backWall = SKSpriteNode(imageNamed: "up")
backWall.size = CGSize(width: 70, height: 70)
backWall.position = CGPoint(x: 0 + 35, y: ground.frame.height)
backWall.zPosition = 3
backWall.physicsBody?.categoryBitMask = PhysicsCategory.backWall
backWall.physicsBody?.contactTestBitMask = PhysicsCategory.backWall
backWall.physicsBody?.collisionBitMask = PhysicsCategory.backWall
backWall.physicsBody?.dynamic = false
backWall.physicsBody?.affectedByGravity = false
backWall.physicsBody?.allowsRotation = false
backWall.physicsBody?.friction = 1.0
backWall.physicsBody = SKPhysicsBody(rectangleOfSize: backWall.size)

Answer 1

当您实例化SKSpriteNode时，其physicsBody为零。

所以，这些代码行：

backWall.physicsBody?.categoryBitMask = PhysicsCategory.backWall
backWall.physicsBody?.contactTestBitMask = PhysicsCategory.backWall
backWall.physicsBody?.collisionBitMask = PhysicsCategory.backWall
backWall.physicsBody?.dynamic = false
backWall.physicsBody?.affectedByGravity = false
backWall.physicsBody?.allowsRotation = false
backWall.physicsBody?.friction = 1.0

默默地被忽略。

您可能需要先指定SKPhysicsBody：

backWall.physicsBody = SKPhysicsBody(rectangleOfSize: backWall.size)
backWall.physicsBody?.categoryBitMask = PhysicsCategory.backWall
backWall.physicsBody?.contactTestBitMask = PhysicsCategory.backWall
backWall.physicsBody?.collisionBitMask = PhysicsCategory.backWall
backWall.physicsBody?.dynamic = false
backWall.physicsBody?.affectedByGravity = false
backWall.physicsBody?.allowsRotation = false
backWall.physicsBody?.friction = 1.0

我没有测试过您的代码，因此您可能需要修复其他部分。特别是，如果player的{{1}}已正确设置，我担心。

为什么我的动态物理体能够推动我的静态物理体？在斯威夫特

1 个答案: