【发布时间】：2015-09-10 06:18:29
【问题描述】：
我是 swift 语言的新手，但遇到了一些问题。我猜这是一个简单的错误，但无论如何我似乎无法找到问题所在。我在做游戏。你输了之后，我在屏幕上创建了一个重播按钮。单击后，我开始重置游戏。
我基本上重置了所有值，删除所有子项，然后重新初始化。它重新初始化很好 - 所有背景和精灵都在正确移动，但如果我触摸尖峰（游戏的失败机制），游戏不会结束；没有调用 didBeginContact 函数来再次执行代码的丢失部分。我猜它与collisionBitMasks和categoryBitMasks有关。
球员和钉鞋之间的接触，以及球员和平台之间的接触（以保持得分）都不起作用。
注意：我的代码目前很乱。我想在开始大修之前让它工作起来，让它变得漂亮和优化。
func didBeginContact(contact: SKPhysicsContact) {
//...
if contact.bodyA.categoryBitMask == spikeGroup && contact.bodyB.categoryBitMask == playerGroup {
gameOver = true
movingObjectsNode.speed = 0
//...
rplay.frame = CGRectMake(100, 100, 100, 50)
rplay.backgroundColor = UIColor.greenColor()
rplay.setTitle("Replay", forState: UIControlState.Normal)
rplay.addTarget(self, action: "rplayAction", forControlEvents: UIControlEvents.TouchUpInside)
self.view?.addSubview(rplay)
} else if contact.bodyA.categoryBitMask == playerGroup && contact.bodyB.categoryBitMask == platformGroup {
var contactedPlatform = contact.bodyB.node
contactHistory.append(contactedPlatform!)
if contactHistory.count >= 3 {
contactHistory.removeAtIndex(0)
}
if contactHistory.count > 1 {
if contactHistory[0].name != contactHistory[1].name {
score = score + 1
scoreLabel.text = String(score)
}
} else {
score = score + 1
scoreLabel.text = String(score)
}
}
func rplayAction() {
rplay.removeFromSuperview()
self.removeAllChildren()
bgOnArray.removeAll(keepCapacity: false)
platformHistArray.removeAll(keepCapacity: false)
platformOnScreenArrayB.removeAll(keepCapacity: false)
platformOnScreenArrayW.removeAll(keepCapacity: false)
movingObjectsNode.removeAllChildren()
gameOverTabHolderNode.removeAllChildren()
pW.removeAll(keepCapacity: false)
pB.removeAll(keepCapacity: false)
pWMask.removeAll(keepCapacity: false)
pBMask.removeAll(keepCapacity: false)
contactHistory.removeAll(keepCapacity: false)
state = true
gstate = false
allowContact = true
gameOver = false
score = 0
count = 0
scoreLabel.text = "0"
scoreLabelArray.removeAll(keepCapacity: false)
movingObjectsNode.speed = 1
self.physicsWorld.contactDelegate = self
self.physicsWorld.gravity = CGVectorMake(0, -20)
self.addChild(movingObjectsNode)
var bgWTexture = SKTexture(imageNamed: "img/bgW")
var bgBTexture = SKTexture(imageNamed: "img/bgB")
var playerBTexture = SKTexture(imageNamed: "img/playerB")
var playerWTexture = SKTexture(imageNamed: "img/playerW")
var movebg = SKAction.moveByX(-bgWTexture.size().width, y: 0, duration: 10.0) //4.48 = 20 pixels a sec?
var replacebg = SKAction.moveByX(bgWTexture.size().width, y: 0, duration: 0)
var movebgForever = SKAction.repeatActionForever(SKAction.sequence([movebg, replacebg]))
makeBackground()
//note: for some reason spikes take forever to load (because of the tempFloatPoint was condensed into one line)
for var i:CGFloat=0; i<36; i++ {
var floorSpikes = SKShapeNode()
var tempInt = Int(i)
var tempString = String(tempInt)
var tempFloatPoint = CGFloat()
var path = CGPathCreateMutable()
CGPathMoveToPoint(path, nil, 0, 0)
CGPathAddLineToPoint(path, nil, bg.size.width/14 , 0)
CGPathAddLineToPoint(path, nil, bg.size.width/28, bg.size.height/9)
CGPathCloseSubpath(path)
floorSpikes.path = path
floorSpikes.lineWidth = 0;
floorSpikes.name = "2 " + tempString
tempFloatPoint = CGRectGetMidX(self.frame)
tempFloatPoint = tempFloatPoint - (bg.size.width/7)
tempFloatPoint = tempFloatPoint + (bg.size.width/14 * i)
if i <= 7 {
floorSpikes.position = CGPoint(x: tempFloatPoint, y: 0)
} else if i > 7 && i <= 20 {
floorSpikes.position = CGPoint(x: tempFloatPoint - 5, y: 0)
} else if i > 20 && i <= 36 {
floorSpikes.position = CGPoint(x: tempFloatPoint - 10, y: 0)
}
floorSpikes.runAction(movebgForever)
floorSpikes.zPosition = 100
floorSpikes.physicsBody = SKPhysicsBody(polygonFromPath: path)
floorSpikes.physicsBody!.dynamic = false
floorSpikes.physicsBody!.categoryBitMask = spikeGroup
movingObjectsNode.addChild(floorSpikes)
}
for var i:CGFloat=0; i<36; i++ {
var ceilingSpikes = SKShapeNode()
var tempInt = Int(i)
var tempString = String(tempInt)
var tempFloatPoint = CGFloat()
var path = CGPathCreateMutable()
CGPathMoveToPoint(path, nil, 0, 0)
CGPathAddLineToPoint(path, nil, bg.size.width/14 , 0)
CGPathAddLineToPoint(path, nil, bg.size.width/28, -bg.size.height/9)
CGPathCloseSubpath(path)
ceilingSpikes.path = path
ceilingSpikes.lineWidth = 0;
ceilingSpikes.name = "3 " + tempString
tempFloatPoint = CGRectGetMidX(self.frame)
tempFloatPoint = tempFloatPoint - (bg.size.width/7)
tempFloatPoint = tempFloatPoint + (bg.size.width/14 * i)
if i <= 7 {
ceilingSpikes.position = CGPoint(x: tempFloatPoint, y: CGRectGetMaxY(self.frame))
} else if i > 7 && i <= 20 {
ceilingSpikes.position = CGPoint(x: tempFloatPoint - 5, y: CGRectGetMaxY(self.frame))
} else if i > 20 && i <= 36 {
ceilingSpikes.position = CGPoint(x: tempFloatPoint - 10, y: CGRectGetMaxY(self.frame))
}
ceilingSpikes.runAction(movebgForever)
ceilingSpikes.zPosition = 100
ceilingSpikes.physicsBody = SKPhysicsBody(polygonFromPath: path)
ceilingSpikes.physicsBody!.dynamic = false
ceilingSpikes.physicsBody!.categoryBitMask = spikeGroup
movingObjectsNode.addChild(ceilingSpikes)
}
//player stuff
player = SKSpriteNode(texture: playerBTexture)
player.xScale = 0.1
player.yScale = 0.1
player.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame) + self.frame.size.height/8)
player.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(player.size.width, player.size.height))
player.physicsBody!.restitution = 0.0
player.physicsBody!.allowsRotation = false
player.physicsBody!.angularDamping = 0.0
player.physicsBody!.angularVelocity = 0.0
player.physicsBody!.dynamic = true
player.physicsBody!.categoryBitMask = playerGroup
player.physicsBody!.collisionBitMask = spikeGroup
player.physicsBody!.contactTestBitMask = spikeGroup
player.physicsBody!.collisionBitMask = platformGroup
player.physicsBody!.contactTestBitMask = platformGroup
self.addChild(player)
var screen = CGRectMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame), UIScreen.mainScreen().bounds.width, self.frame.height)
scoreLabel.fontName = "GKFont"
scoreLabel.fontSize = 60
scoreLabel.fontColor = UIColor.blackColor()
scoreLabel.text = "0"
scoreLabel.position = CGPointMake(CGRectGetMidX(self.frame) + screen.width/2 - screen.width/10, self.frame.height - self.frame.height/4)
self.addChild(scoreLabel)
scoreLabelArray.append(scoreLabel)
makeStarterPlatforms()
}
我认为问题在于这两个功能之一。提前感谢您愿意提供的任何帮助！
【问题讨论】：