在我得到任何帮助之前，我想澄清一下我不是专家，你会看到。我是编程的初学者。现在就说了。
如何在比赛结束后保存高分？在下面的代码中，我使用的是NSUserDefaults，但我遇到了一个无法修复的问题。一旦我运行游戏，我得到30分，一旦倒计时达到0，然后我再次尝试再次播放，我得到一个12例如它自动12是新的高分到12这是完全错误但我无法解决它。
class Game: SKScene, SKPhysicsContactDelegate {
let Ball = SKSpriteNode(imageNamed: "Red.png")
var QuitOption = SKLabelNode()
var ScoreLabel = SKLabelNode()
var timesecond = Int(60)
var locked = false
var loseOption = SKLabelNode()
var scorePoints = SKLabelNode()
var score = Int()
let whiteBall = SKSpriteNode(imageNamed: "fingerPointingDown.png")
var caseForScoreOne = SKLabelNode()
var caseForScoreTwo = SKLabelNode()
struct PhysicsCategory {
static let Ball: UInt32 = 0b1
static let whiteBall: UInt32 = 0b10
}
override func didMoveToView(view: SKView) {
backgroundColor = SKColor.whiteColor() // background for the display
self.physicsWorld.gravity = CGVectorMake(0, -9.8)
self.physicsWorld.contactDelegate = self
let SceneBody = SKPhysicsBody(edgeLoopFromRect: self.frame)
SceneBody.friction = 0
self.physicsBody = SceneBody
scorePoints = SKLabelNode(fontNamed: "Noteworthy-Light")
scorePoints.text = "0"
scorePoints.fontColor = SKColor.blackColor()
scorePoints.fontSize = 35
scorePoints.position = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height*1 - 120)
scorePoints.name = "Points"
addChild(scorePoints)
Ball.size = CGSize(width: 82, height: 82)
Ball.position = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height*0.1 - 60)
Ball.physicsBody = SKPhysicsBody(circleOfRadius: 41)
Ball.physicsBody?.affectedByGravity = true
Ball.physicsBody?.density = 10
Ball.physicsBody?.restitution = 0.1
Ball.physicsBody?.linearDamping = 0
Ball.name = "Ball"
Ball.physicsBody?.usesPreciseCollisionDetection = true
Ball.physicsBody?.categoryBitMask = PhysicsCategory.Ball
Ball.physicsBody?.contactTestBitMask = PhysicsCategory.whiteBall
Ball.physicsBody?.collisionBitMask = PhysicsCategory.whiteBall
self.addChild(Ball)
QuitOption.text = "Quit"
QuitOption.fontName = "Noteworthy-Light"
QuitOption.fontColor = SKColor.purpleColor()
QuitOption.fontSize = 35
QuitOption.position = CGPoint(x: self.frame.size.width/2 - 160, y: self.frame.size.height*1 - 110)
QuitOption.name = "Quit"
addChild(QuitOption)
ScoreLabel = SKLabelNode(fontNamed: "Noteworthy-Light")
ScoreLabel.fontColor = SKColor.redColor()
ScoreLabel.fontSize = 35 // The + will move it to the right side and - to the left side for more accuracy.
ScoreLabel.position = CGPoint(x: self.frame.size.width/2 + 160, y: self.frame.size.height/1 - 115) // position of ScoreLabelNode
ScoreLabel.name = "Score+"
ScoreLabel.hidden = false
self.addChild(ScoreLabel)
whiteBall.size = CGSize(width: 55, height: 55)
whiteBall.position = CGPoint(x: self.frame.size.width/2, y: self.frame.size.height*0.8 - 30)
whiteBall.name = "whiteBall"
whiteBall.physicsBody = SKPhysicsBody(circleOfRadius: 25)
whiteBall.physicsBody?.dynamic = false
whiteBall.physicsBody?.restitution = 0.1
whiteBall.physicsBody?.usesPreciseCollisionDetection = true
whiteBall.physicsBody?.categoryBitMask = PhysicsCategory.whiteBall
whiteBall.physicsBody?.contactTestBitMask = PhysicsCategory.Ball
whiteBall.physicsBody?.collisionBitMask = PhysicsCategory.Ball
self.addChild(whiteBall)
caseForScoreOne = SKLabelNode(fontNamed: "Noteworthy-Light")
caseForScoreOne.fontColor = SKColor.blackColor()
caseForScoreOne.fontSize = 25
caseForScoreOne.position = CGPoint(x: self.frame.size.width/2 - 160, y: self.frame.size.height*1 - 175)
caseForScoreOne.name = "caseOne"
addChild(caseForScoreOne)
caseForScoreTwo = SKLabelNode(fontNamed: "Noteworthy-Light")
caseForScoreTwo.fontColor = SKColor.blackColor()
caseForScoreTwo.fontSize = 25
caseForScoreTwo.position = CGPoint(x: self.frame.size.width/2 + 160, y: self.frame.size.height/1 - 175)
caseForScoreTwo.name = "caseTwo"
addChild(caseForScoreTwo)
}
// Making the ball jump after user touches ball
override func touchesBegan(touches: Set<NSObject>, withEvent event: UIEvent) {
var touch = touches.first as! UITouch
var location = touch.locationInNode(self)
var node = self.nodeAtPoint(location)
if (node.name == "Quit"){
let myScene = GameScene(size: self.size)
myScene.scaleMode = scaleMode
let reveal = SKTransition.fadeWithDuration(1)
self.view?.presentScene(myScene, transition: reveal)
}
if (node.name == "Ball"){
for touch: AnyObject in touches {
Ball.physicsBody?.allowsRotation = true
Ball.physicsBody?.velocity = CGVectorMake(0, 0)
Ball.physicsBody?.applyImpulse(CGVectorMake(0, 450))
}
}
if(!self.locked){
self.locked = true
var actionrun = SKAction.waitForDuration(0.5)
var actionwait = SKAction.runBlock({
self.timesecond--
if self.timesecond == 60 {self.timesecond = 0}
self.ScoreLabel.text = "\(self.timesecond)"
if (self.timesecond == 0){
self.saveHighScore(0)
if self.score > self.highScore() {
self.saveHighScore(self.score)
self.caseForScoreTwo.text = "N.H.S = " + self.highScore().description
} else if (self.score > self.highScore()) {
self.caseForScoreOne.text = "N.H.S = " + self.score.description
}
}
})
let loopAction = SKAction.repeatAction(SKAction.sequence([actionwait, actionrun]), count: 60)
ScoreLabel.runAction(loopAction, withKey: "scoreAction")
}
}
func didBeginContact(contact: SKPhysicsContact) {
let collision = contact.bodyA.categoryBitMask | contact.bodyB.categoryBitMask
if collision == PhysicsCategory.Ball | PhysicsCategory.whiteBall {
score++
scorePoints.text = "Score: \(score)"
}
}
func saveHighScore(high:Int) {
NSUserDefaults.standardUserDefaults().setInteger(high, forKey: "highscore")
}
func highScore() -> Int {
return NSUserDefaults.standardUserDefaults().integerForKey("highscore")
}
func resetHighScore() {
NSUserDefaults.standardUserDefaults().removeObjectForKey("highscore")
}
}
答案 0 :(得分：1)
func saveHighScore(high:Int) {
if high > highScore() {
NSUserDefaults().setInteger(high, forKey: "highscore")
println("highscore saved")
} else {
println("not a highscore")
}
}