我将如何保存“硬币"?在我的 Swift SpriteKit 游戏中? [英] How would I save "coins" in my game in Swift SpriteKit?

问题描述

我有一个游戏，用户可以收集硬币，我希望他们能够保存它们并将硬币用于应用程序内购买.我该怎么做?我可以为此使用 NSUserDefaults 还是其他什么?谢谢！我用它来保存高分:

I have this game where the user collects coins and I want them to be able to save them and use the coins for in app purchaces. How would I do this? Could I use NSUserDefaults for this or is it something else? Thanks! I used this for saving the highScore:

                   EDITED
    var coinDefaults = NSUserDefaults()
    var coinScore = defaults.integerForKey("coinScore")

    if(coins > 0)
    {
        coinDefaults.setInteger(coins, forKey: "coinScore")
    }
    var showCoins = coinDefaults.integerForKey("coinScore")

    coinLabel.text = String(showCoins)



    }

推荐答案

重置 coinScore

Reseting the coinScore

NSUserDefaults.standardUserDefaults().removeObjectForKey("coinScore")

加载保存的分数

var coinScore =  NSUserDefaults.standardUserDefaults().integerForKey("coinScore")

var coins = 5

更新coinScore

updating the coinScore

if coins > coinScore  {
    coinScore = coins
    NSUserDefaults().setInteger(coinScore, forKey: "coinScore")
}

println( NSUserDefaults().integerForKey("coinScore").description )

coins += 20

if coins > coinScore  {
    coinScore = coins
    NSUserDefaults().setInteger(coinScore, forKey: "coinScore")
}

println( NSUserDefaults().integerForKey("coinScore").description )

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