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C#-循环结束结果

[英]C# - Loop ending result

我将尽我所能来解释这个问题,所以请多多包涵。 我在做游戏,基本上有100码。 您从100开始,然后开始循环播放,生成数字并从100码中减去。 一旦数字达到0,循环就会停止。

看一下这段代码:

int yardsLeft = 100;
    // this is on a loop until 'yardsLeft = 0'
if (yardsLeft >= 80)
{
    // 10% chance of generating a number 80-100
    // 20% chance of generating a number 40-80
    // 70% chance of generating a number 1-40

    // Say it hits the 10% chance and generates the number 85 - there's 15 yards left
    // it will pass through the if statements entering the `if (yardsLeft < 40)` - say that hits 20 once more. at the end once the yardsLeft finally equals 0, the yards added up each loop will be over 100. in this case 120
    -------------------------------
    // but if the generated number generates a 70% chance and hits a number 1-20, it's going to stay in the `yardsLeft > 80` if statment-
    // therefore having the potential to exceed the number '100' once the `yardsLeft = 0`
}
else if (yardsLeft >= 40 && yardsLeft <= 79) { } // this would activate if the 20% chance got generated
if (yardsLeft < 40)
    {
    // 10% chance of generating a number 30-39
    // 20% chance of generating a number 10-29
    // 70% chance of generating a number 1-9
    }

我的问题:

如果生成的数字产生70%的机会并击中数字1-20,则它将停留在yardsLeft > 80如果声明)中,因此一旦yardsLeft = 0 ,它就有可能超过数字'100'

那么,如果它确实输入了yardsLeft >= 80 ,我如何确保它生成一个数字,最后生成的数字恰好是100码(数字相加)

这是我的循环:

while (yardsLeft > 0)
{
    int[] playResult = new int[i + 1];
    playResult[i] = r.Next(1, 4);

    switch (playResult[i])
    {
        case 1:
            Console.WriteLine(BuffaloBills.QB + " hands it off to " + BuffaloBills.RB + " for a gain of " + Calculations.Play() + " yards. \n");
            yardsLeft -= gained;
            i++;
            break;
        case 2:
            Console.WriteLine(BuffaloBills.QB + " passes it " + BuffaloBills.WR + " for a gain of " + Calculations.Play() + " yards. \n");
            yardsLeft -= gained;
            i++;
            break;
        case 3:
            Console.WriteLine(BuffaloBills.QB + " doesn't find anyone open so he rushes for a gain of " + Calculations.Play() + " yards. \n");
            yardsLeft -= gained;
            i++;
            break;
    }
}  

这是我的变量

public static Random r = new Random();
public static int gained;
public static int yardsLeft = 100;
public static int i = 0;
public static int chance = r.Next(1, 101);

不要只是从顶部的if / else if / else语句返回数字,而是要等到块的末尾再返回到那里。 这样一来,您就可以收集所有逻辑以进行计算。

private int Play(int yardsLeft) // Pass in the total yards left here
{
    var yards = 0;

    if (yardsLeft >= 80)
    {
        yards = // The result of your 10/20/70% calculation
    }
    else if (yardsLeft >= 40) { } // Same deal
    else { } // Again, same as in the if

    return yards > yardsLeft ? yardsLeft : yards;
}

您还可以对此进行重新处理以提供一个字符串,该字符串将说明是否已触地得分。 (将yardsLeft参数设置为ref以便您可以在此方法内调整剩余的码。)

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