每当 (count) 大于 (highscored) 时，我都会收到相同的消息。
但我想要的是当 (count) 低于 (highscored) 你得到 (“你得分(计数)分”)。
我是一名学生并且做了一个关于swift的教程，所以现在我添加了一些要学习的东西，它是一个点击游戏，你需要尽可能快地点击以设置一个新的高分。
这就是我要说的部分:
func subtractTime() {
seconds--
timerLabel.text = "Time: \(seconds)"
if(seconds == 0) {
if(highscored < count)
{
highscored < count
saveHighScore(count)
highscore.text = "Highscore: \(loadhighScore().description)"
}
if (highscored > count) {
timer.invalidate()
let alert = UIAlertController(title: "Time is up!",
message: "You scored \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert, animated: true, completion:nil)
}
else{
timer.invalidate()
let alert2 = UIAlertController(title: "Time is up!",
message: "You set a new higscore \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert2.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert2, animated: true, completion:nil)}
}}
这是孔代码:
import UIKit
class ViewController: UIViewController {
@IBOutlet var scoreLabel: UILabel!
@IBOutlet var timerLabel: UILabel!
@IBOutlet var highscore: UILabel!
var count = 0
var seconds = 0
var timer = NSTimer()
var highscored = 0
@IBAction func buttonPressed() {
count++
scoreLabel.text = "Score \n\(count)"
}
func setupGame() { if(highscored > count) {
seconds = 30
count = 0
timerLabel.text = "Time: \(seconds)"
scoreLabel.text = "Score:\(count)"
timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("subtractTime"), userInfo: nil, repeats: true)
}
else {
seconds = 30
count = 0
timerLabel.text = "Time: \(seconds)"
scoreLabel.text = "Score:\(count)"
highscore.text = "Highscore: \(loadhighScore().description)"
timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("subtractTime"), userInfo: nil, repeats: true)
}
}
func subtractTime() {
seconds--
timerLabel.text = "Time: \(seconds)"
if(seconds == 0) {
if(highscored < count)
{
highscored < count
saveHighScore(count)
highscore.text = "Highscore: \(loadhighScore().description)"
}
if (highscored > count) {
timer.invalidate()
let alert = UIAlertController(title: "Time is up!",
message: "You scored \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert, animated: true, completion:nil)
}
else{
timer.invalidate()
let alert2 = UIAlertController(title: "Time is up!",
message: "You set a new higscore \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert2.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert2, animated: true, completion:nil)}
}}
func saveHighScore(high:Int) {
NSUserDefaults.standardUserDefaults().setInteger(high, forKey: "highscore")
}
func loadhighScore() -> Int {
return NSUserDefaults.standardUserDefaults().integerForKey("highscore")
}
func resetHighScore() {
NSUserDefaults.standardUserDefaults().removeObjectForKey("highscore")
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
setupGame()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
如有任何帮助，我们将不胜感激。
最佳答案
您实际上从未为 highscored 赋值所以它总是设置为 0您最初将其声明为的值。
因此，表达式 if (highscored > count)永远不会返回 true，所以你永远不会执行你想要的代码。您可能的情况是计数大于零(如果用户完全点击按钮)，这将触发 if(highscored < count) if 语句，或者计数等于 highscored(如果用户根本不点击按钮)，此时程序将失败 highscored > count表达式，然后转到 else 语句，此时它告诉用户他们有了新的高分。
一个好的解决方案是将 highScored 的值设置为 setupGame() 中的当前最高分。方法，像这样:
func setupGame() {
highscored = loadhighscore()
seconds = 30
count = 0
timerLabel.text = "Time: \(seconds)"
scoreLabel.text = "Score:\(count)"
if(highscored > count) {
highscore.text = "Highscore: \(loadhighScore().description)"
}
timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: Selector("subtractTime"), userInfo: nil, repeats: true)
}
另一件值得一提的事情是，虽然这不会导致您的代码出现任何错误，但您的 subtractTime() 中似乎有一个多余的 if 语句。方法，因为您首先检查 highscored 是否大于 count，然后您还检查它是否大于或等于以下 else 中的 count下一个 if 语句的一部分。如果这是故意的，那么请忽略下一段代码，但我可能会将其格式化为类似的格式；
func subtractTime() {
seconds--
timerLabel.text = "Time: \(seconds)"
if(seconds == 0) {
timer.invalidate()
if(highscored <= count)
{
saveHighScore(count)
highscore.text = "Highscore: \(loadhighScore().description)"
let alert2 = UIAlertController(title: "Time is up!",
message: "You set a new higscore \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert2.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert2, animated: true, completion:nil)
}
else {
let alert = UIAlertController(title: "Time is up!",
message: "You scored \(count) points",
preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction (UIAlertAction(title: "Play Again", style: UIAlertActionStyle.Default, handler: {
action in self.setupGame()
}))
presentViewController(alert, animated: true, completion:nil)
}
}
}
希望对你有帮助
关于ios - swift 游戏相同的消息，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34038475/