我有一个像Flappy Bird一样的工作游戏。我有一个用于菜单的常规视图控制器和一个游戏视图控制器。你如何用一个按钮从ViewController到SpriteKit？
import SpriteKit
class Games: SKScene, SKPhysicsContactDelegate {
var gamePlayScence = SKScene()
var score = 0
var scoreLabel = SKLabelNode()
var gameOverLabel = SKLabelNode()
var bird = SKSpriteNode()
var bg = SKSpriteNode()
var labelHolder = SKSpriteNode()
let birdGroup:UInt32 = 1
let objectGroup:UInt32 = 2
let gapGroup:UInt32 = 0 << 3
var gameOver = 0
var movingObjects = SKNode()
override func didMoveToView(view: SKView) {
self.physicsWorld.contactDelegate = self
self.physicsWorld.gravity = CGVectorMake(0, -5)
self.addChild(movingObjects)
makeBackground()
self.addChild(labelHolder)
scoreLabel.fontName = "Helvetica"
scoreLabel.fontSize = 60
scoreLabel.text = "0"
scoreLabel.position = CGPointMake(CGRectGetMidX(self.frame), self.frame.size.height - 70)
scoreLabel.zPosition = 11
self.addChild(scoreLabel)
let birdTexture = SKTexture(imageNamed: "img 2/flappy1.png")
let birdTexture2 = SKTexture(imageNamed: "img 2/flappy2.png")
let animation = SKAction.animateWithTextures([birdTexture, birdTexture2], timePerFrame: 0.1)
let makeBirdFlap = SKAction.repeatActionForever(animation)
bird = SKSpriteNode(texture: birdTexture)
bird.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame))
bird.runAction(makeBirdFlap)
bird.physicsBody = SKPhysicsBody(circleOfRadius: bird.size.height / 2)
bird.physicsBody?.dynamic = true
bird.physicsBody?.allowsRotation = false
bird.physicsBody?.categoryBitMask = birdGroup
bird.physicsBody?.contactTestBitMask = objectGroup
bird.physicsBody?.collisionBitMask = gapGroup
bird.zPosition = 10
self.addChild(bird)
let ground = SKNode()
ground.position = CGPointMake(0, 0)
ground.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(self.frame.size.width, 1))
ground.physicsBody?.dynamic = false
ground.physicsBody?.categoryBitMask = objectGroup
self.addChild(ground)
NSTimer.scheduledTimerWithTimeInterval(3, target: self, selector: Selector("makePipes"), userInfo: nil, repeats: true)
}
func makeBackground() {
let bgTexture = SKTexture(imageNamed: "img 2/bg.png")
let movebg = SKAction.moveByX(-bgTexture.size().width, y: 0, duration: 9)
let replacebg = SKAction.moveByX(bgTexture.size().width, y: 0, duration: 0)
let movebgForever = SKAction.repeatActionForever(SKAction.sequence([movebg, replacebg]))
for var i:CGFloat=0; i<3; i++ {
bg = SKSpriteNode(texture: bgTexture)
bg.position = CGPoint(x: bgTexture.size().width/2 + bgTexture.size().width * i, y: CGRectGetMidY(self.frame))
bg.size.height = self.frame.height
bg.runAction(movebgForever)
movingObjects.addChild(bg)
}
}
func makePipes() {
if (gameOver == 0) {
let gapHeight = bird.size.height * 4
let movementAmount = arc4random() % UInt32(self.frame.size.height / 2)
let pipeOffset = CGFloat(movementAmount) - self.frame.size.height / 4
let movePipes = SKAction.moveByX(-self.frame.size.width * 2, y: 0, duration: NSTimeInterval(self.frame.size.width / 100))
let removePipes = SKAction.removeFromParent()
let moveAndRemovePipes = SKAction.sequence([movePipes, removePipes])
let pipe1Texture = SKTexture(imageNamed: "img 2/pipe1.png")
let pipe1 = SKSpriteNode(texture: pipe1Texture)
pipe1.position = CGPoint(x: CGRectGetMidX(self.frame) + self.frame.size.width, y: CGRectGetMidY(self.frame) + pipe1.size.height / 2 + gapHeight / 2 + pipeOffset)
pipe1.runAction(moveAndRemovePipes)
pipe1.physicsBody = SKPhysicsBody(rectangleOfSize: pipe1.size)
pipe1.physicsBody?.dynamic = false
pipe1.physicsBody?.categoryBitMask = objectGroup
pipe1.zPosition = 8
movingObjects.addChild(pipe1)
let pipe2Texture = SKTexture(imageNamed: "img 2/pipe2.png")
let pipe2 = SKSpriteNode(texture: pipe2Texture)
pipe2.position = CGPoint(x: CGRectGetMidX(self.frame) + self.frame.size.width, y: CGRectGetMidY(self.frame) - pipe2.size.height / 2 - gapHeight / 2 + pipeOffset)
pipe2.runAction(moveAndRemovePipes)
pipe2.physicsBody = SKPhysicsBody(rectangleOfSize: pipe2.size)
pipe2.physicsBody?.dynamic = false
pipe2.physicsBody?.categoryBitMask = objectGroup
pipe2.zPosition = 8
movingObjects.addChild(pipe2)
let gap = SKNode()
gap.position = CGPoint(x: CGRectGetMidX(self.frame) + self.frame.size.width, y: CGRectGetMidY(self.frame) + pipeOffset)
gap.physicsBody = SKPhysicsBody(rectangleOfSize: CGSizeMake(pipe1.size.width, gapHeight))
gap.runAction(moveAndRemovePipes)
gap.physicsBody?.dynamic = false
gap.physicsBody?.collisionBitMask = gapGroup
gap.physicsBody?.categoryBitMask = gapGroup
gap.physicsBody?.contactTestBitMask = birdGroup
movingObjects.addChild(gap)
}
}
// Update - removed ! after SKPhysicsContact
func didBeginContact(contact: SKPhysicsContact) {
if contact.bodyA.categoryBitMask == gapGroup || contact.bodyB.categoryBitMask == gapGroup {
score++
scoreLabel.text = "\(score)"
} else {
if gameOver == 0 {
gameOver = 1
movingObjects.speed = 0
gameOverLabel.fontName = "Helvetica"
gameOverLabel.fontSize = 30
gameOverLabel.text = "Game Over! Tap to play again."
gameOverLabel.position = CGPointMake(CGRectGetMidX(self.frame), CGRectGetMidY(self.frame))
gameOverLabel.zPosition = 11
labelHolder.addChild(gameOverLabel)
}
}
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
if (gameOver == 0) {
bird.physicsBody?.velocity = CGVectorMake(0, 0)
bird.physicsBody?.applyImpulse(CGVectorMake(0, 50))
} else {
score = 0
scoreLabel.text = "0"
movingObjects.removeAllChildren()
makeBackground()
bird.position = CGPoint(x: CGRectGetMidX(self.frame), y: CGRectGetMidY(self.frame))
bird.physicsBody?.velocity = CGVectorMake(0, 0)
labelHolder.removeAllChildren()
gameOver = 0
movingObjects.speed = 1
}
}
override func update(currentTime: CFTimeInterval) {
/* Called before each frame is rendered */
}
}