【发布时间】：2015-04-07 21:34:12
【问题描述】：
我试图让“英雄”与“wallGenerator”（生成墙壁）发生碰撞
但无论我做什么，它都不会发生碰撞。英雄会撞到地面，但不会撞到墙壁，因为它只会穿过墙壁。
这是 Hero 和 WallGenerator 的代码
hero.position = CGPointMake(70, movingGround.position.y + movingGround.frame.size.height/2 + hero.frame.size.height/2)
hero.physicsBody = SKPhysicsBody(rectangleOfSize: hero.size)
hero.physicsBody!.dynamic = true
hero.physicsBody!.allowsRotation = false
hero.physicsBody!.categoryBitMask = heroCategory
hero.physicsBody!.collisionBitMask = heroCategory | wallCategory
hero.physicsBody!.contactTestBitMask = wallCategory | heroCategory | groundCategory
wallGenerator = CSWallGenerator(color: UIColor.clearColor(), size: view.frame.size)
wallGenerator.position = view.center
wallGenerator.physicsBody = SKPhysicsBody(edgeLoopFromRect : wallGenerator.frame)
wallGenerator.physicsBody!.dynamic = false
wallGenerator.physicsBody!.categoryBitMask = wallCategory
wallGenerator.physicsBody!.collisionBitMask = wallCategory | heroCategory
CSWallGenerator 的代码
class CSWallGenerator: SKSpriteNode {
var generationTimer: NSTimer?
func startGeneratingWallsEvery(seconds: NSTimeInterval) {
generationTimer = NSTimer.scheduledTimerWithTimeInterval(seconds, target: self, selector: "generateWall", userInfo: nil, repeats: true)
}
func generateWall() {
var scale: CGFloat
let rand = arc4random_uniform(2)
if rand == 0 {
scale = -1.0
} else {
scale = 1.0
}
let wall = CSWall()
wall.position.x = size.width/2 + wall.size.width/2
wall.position.y = scale * (kCSGroundHeight/2 + wall.size.height/2)
addChild(wall)
}
}
【问题讨论】：
-
您可能想提供更多详细信息，例如：您如何实例化
hero，CSWallGenerator做了什么，您是如何编写位掩码（类别）的？ -
@lchamp 我添加了 CSWallGenerator，这似乎只是 wallGenerator 的问题，因为我的英雄可以与我的地面发生碰撞
标签： ios swift sprite-kit skphysicsbody