swift语言开发的一个游戏------熊猫跑酷（KongfuPanda）

项目地址：https://github.com/jakciehoo/KongfuPanda

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1.首先创建一个游戏项目：

import SpriteKit

class GameScene: SKScene,SKPhysicsContactDelegate , ProtocolMainscreen{
lazy var panda  = Panda()
lazy var platformFactory = PlatformFactory()
lazy var sound = SoundManager()
lazy var bg = Background()
lazy var appleFactory = AppleFactory()
let scoreLab = SKLabelNode(fontNamed:"Chalkduster")
let appLab = SKLabelNode(fontNamed:"Chalkduster")
let myLabel = SKLabelNode(fontNamed:"Chalkduster")
var appleNum = 0

var moveSpeed :CGFloat = 15.0
var maxSpeed :CGFloat = 50.0
var distance:CGFloat = 0.0
var lastDis:CGFloat = 0.0
var theY:CGFloat = 0.0
var isLose = false
override func didMoveToView(view: SKView) {

let skyColor = SKColor(red:113.0/255.0, green:197.0/255.0, blue:207.0/255.0, alpha:1.0)
self.backgroundColor = skyColor
scoreLab.horizontalAlignmentMode = SKLabelHorizontalAlignmentMode.Left
scoreLab.position = CGPointMake(20, self.frame.size.height-150)
scoreLab.text = "run: 0 km"
self.addChild(scoreLab)

appLab.horizontalAlignmentMode = SKLabelHorizontalAlignmentMode.Left
appLab.position = CGPointMake(400, self.frame.size.height-150)
appLab.text = "eat: \(appleNum) apple"
self.addChild(appLab)

myLabel.text = "";
myLabel.fontSize = 65;
myLabel.zPosition = 100
myLabel.position = CGPoint(x:CGRectGetMidX(self.frame), y:CGRectGetMidY(self.frame));
self.addChild(myLabel)

self.physicsWorld.contactDelegate = self
self.physicsWorld.gravity = CGVectorMake(0, -5)
self.physicsBody = SKPhysicsBody(edgeLoopFromRect: self.frame)
self.physicsBody!.categoryBitMask = BitMaskType.scene
self.physicsBody!.dynamic = false

panda.position = CGPointMake(200, 400)
self.addChild(panda)
self.addChild(platformFactory)
platformFactory.screenWdith = self.frame.width
platformFactory.delegate = self
platformFactory.createPlatform(3, x: 0, y: 200)

self.addChild(bg)

self.addChild(sound)
sound.playBackgroundMusic()

appleFactory.onInit(self.frame.width, y: theY)
self.addChild( appleFactory )

}
func didBeginContact(contact: SKPhysicsContact){

//熊猫和苹果碰撞
if (contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask) == (BitMaskType.apple | BitMaskType.panda){
sound.playEat()
self.appleNum++
if contact.bodyA.categoryBitMask == BitMaskType.apple {
contact.bodyA.node!.hidden = true
}else{
contact.bodyB.node!.hidden = true
}

}

//熊猫和台子碰撞
if (contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask) == (BitMaskType.platform | BitMaskType.panda){
var isDown = false
var canRun = false
if contact.bodyA.categoryBitMask == BitMaskType.platform {
if (contact.bodyA.node as! Platform).isDown {
isDown = true
contact.bodyA.node!.physicsBody!.dynamic = true
contact.bodyA.node!.physicsBody!.collisionBitMask = 0
}else if (contact.bodyA.node as! Platform).isShock {
(contact.bodyA.node as! Platform).isShock = false
downAndUp(contact.bodyA.node!, down: -50, downTime: 0.2, up: 100, upTime: 1, isRepeat: true)
}
if contact.bodyB.node!.position.y > contact.bodyA.node!.position.y {
canRun=true
}

}else if contact.bodyB.categoryBitMask == BitMaskType.platform  {
if (contact.bodyB.node as! Platform).isDown {
contact.bodyB.node!.physicsBody!.dynamic = true
contact.bodyB.node!.physicsBody!.collisionBitMask = 0
isDown = true
}else if (contact.bodyB.node as! Platform).isShock {
(contact.bodyB.node as! Platform).isShock = false
downAndUp(contact.bodyB.node!, down: -50, downTime: 0.2, up: 100, upTime: 1, isRepeat: true)
}
if contact.bodyA.node!.position.y > contact.bodyB.node!.position.y {
canRun=true
}

}

panda.jumpEnd = panda.position.y
if panda.jumpEnd-panda.jumpStart <= -70 {
panda.roll()
sound.playRoll()

if !isDown {
downAndUp(contact.bodyA.node!)
downAndUp(contact.bodyB.node!)
}

}else{
if canRun {
panda.run()
}

}
}

if (contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask) == (BitMaskType.scene | BitMaskType.panda) {
println("game over")
myLabel.text = "game over";
sound.playDead()
isLose = true
sound.stopBackgroundMusic()

}

//落地后jumpstart数据要设为当前位置，防止自由落地计算出错
panda.jumpStart = panda.position.y
}
func didEndContact(contact: SKPhysicsContact){
panda.jumpStart = panda.position.y

}
func downAndUp(node :SKNode,down:CGFloat = -50,downTime:CGFloat=0.05,up:CGFloat=50,upTime:CGFloat=0.1,isRepeat:Bool=false){
let downAct = SKAction.moveByX(0, y: down, duration: Double(downTime))
//moveByX(CGFloat(0), y: down, duration: downTime)
let upAct = SKAction.moveByX(0, y: up, duration: Double(upTime))
let downUpAct = SKAction.sequence([downAct,upAct])
if isRepeat {
node.runAction(SKAction.repeatActionForever(downUpAct))
}else {
node.runAction(downUpAct)
}

}

override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
if isLose {
reSet()
}else{
if panda.status != Status.jump2 {
sound.playJump()
}
panda.jump()
}

}
//重新开始游戏
func reSet(){
isLose = false
panda.position = CGPointMake(200, 400)
myLabel.text = ""
moveSpeed  = 15.0
distance = 0.0
lastDis = 0.0
self.appleNum = 0
platformFactory.reset()
appleFactory.reSet()
platformFactory.createPlatform(3, x: 0, y: 200)
sound.playBackgroundMusic()
}
override func update(currentTime: CFTimeInterval) {
if isLose {

}else{
if panda.position.x < 200 {
var x = panda.position.x + 1
panda.position = CGPointMake(x, panda.position.y)
}
distance += moveSpeed
lastDis -= moveSpeed
var tempSpeed = CGFloat(5 + Int(distance/2000))
if tempSpeed > maxSpeed {
tempSpeed = maxSpeed
}
if moveSpeed < tempSpeed {
moveSpeed = tempSpeed
}

if lastDis < 0 {
platformFactory.createPlatformRandom()
}
distance += moveSpeed
scoreLab.text = "run: \(Int(distance/1000*10)/10) km"
appLab.text = "eat: \(appleNum) apple"
platformFactory.move(moveSpeed)
bg.move(moveSpeed/5)
appleFactory.move(moveSpeed)
}

}

func onGetData(dist:CGFloat,theY:CGFloat){

self.lastDis = dist
self.theY = theY
appleFactory.theY = theY
}

}

protocol ProtocolMainscreen {
func onGetData(dist:CGFloat,theY:CGFloat)
}

GameScene.swift

4.最后的游戏的效果图：