c# -计算- RNG游戏

Question

我在做足球比赛。为了得到一个触地得分，你必须获得100码。我有public static int yardsLeft = 100;。它经过一圈，每过一圈就有那么多码。一旦yardsLeft = 0退出，它就会退出。我很难弄清楚如何在最后(触地得分)得到码数，精确到100码。

我有这个：

if (Program.yardsLeft >= 80)
{
    if (Program.chance >= 1 && Program.chance <= 5)
        Program.gained = Program.r.Next(80, (100 + 1));

    else if (Program.chance >= 6 && Program.chance <= 12)
        Program.gained = Program.r.Next(60, (79 + 1));

    else if (Program.chance >= 13 && Program.chance <= 24)
        Program.gained = Program.r.Next(20, (59 + 1));

    else if (Program.chance >= 25 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, (19 + 1));
}
else if (Program.yardsLeft <= 79 && Program.yardsLeft >= 60)
{
    if (Program.chance >= 1 && Program.chance <= 10)
        Program.gained = Program.r.Next(60, 80);

    else if (Program.chance >= 11 && Program.chance <= 30)
        Program.gained = Program.r.Next(20, 60);

    else if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, 20);
}
else if (Program.yardsLeft <= 59 && Program.yardsLeft >= 40)
{
    if (Program.chance >= 1 && Program.chance <= 10)
        Program.gained = Program.r.Next(40, 60);

    else if (Program.chance >= 11 && Program.chance <= 30)
        Program.gained = Program.r.Next(20, 40);

    else if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, 20);
}
else if (Program.yardsLeft <= 39 && Program.yardsLeft >= 20)
{
    if (Program.chance >= 1 && Program.chance <= 10)
        Program.gained = Program.r.Next(30, 40);

    else if (Program.chance >= 11 && Program.chance <= 30)
        Program.gained = Program.r.Next(10, 30);

    else if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, 10);
}
else if (Program.yardsLeft <= 19)
{
    if (Program.chance >= 1 && Program.chance <= 10)
        Program.gained = Program.r.Next(15, 20);

    if (Program.chance >= 11 && Program.chance <= 30)
        Program.gained = Program.r.Next(10, 15);

    if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, 10);
}

首先，它检查yardsLeft是否超过80码，如果是，它有机会获得这么多码(最多100码)，但是，如果第一次通过，它不会超过20码(继续到下一次检查else if (Program.yardsLeft <= 79 && Program.yardsLeft >= 60)，它将直接返回到else if (Program.yardsLeft <= 79 && Program.yardsLeft >= 60)，并再次添加导致100码的东西，这意味着最终的结果将超过100码。

示例

if (yardsLeft is 80 or more)
    {
        // generate number somewhere through 60-80 (not ever exceed 100)
        // generate number somehwere between 20-60 (not ever exceeding 100
        // generator number somewehere between 1-20 (not ever exceeding 100)
    }
    else if (yardsLeft is between 60-20)
    {
        // generate number somewhere through 40-60 (not ever exceed 100)
        // generate number somehwere between 20-40 (not ever exceeding 100
        // generator number somewehere between 1-20 (not ever exceeding 100)
    }

最终结果CAN NOT超过100。这就是我想说的。每次它循环，我想要它产生一些数字，在最后，永远不会超过100。

Answer 1

一个简单的解决方案是将这个块放在代码的其余部分之后：

Program.gained = Math.Min(Program.gained, Program.yardsLeft);

这意味着，如果所获得的码数大于达到0所需的码数，则它将被设置为所剩的码数。因此，当您稍后(大概)通过Program.yardsLeft减少Program.gained时，它不会低于0。

基础知识：Math.Min返回给定参数的最小值。此语句根据先前代码中给出的值将Program.gained设置为一个新值。这“夹紧”了Program.gained的值，使其低于yardsLeft。下面是一个简单的用法：

int yardsYouCanRun = 112;
int yardsYouTraveled = Math.Min(yardsYouCanRun, 100);
// yardsYouTraveled is Math.Min(112, 100), which is 100.

int yardsICanRun = 15;
int yardsITraveled = Math.Min(yardsICanRun, 100);
// yardsITraveled is Math.Min(15, 100), which is 15.

这代表了一种情况，你可以跟踪你可以从零跑出的码数，但是要把它限制在100，因为这是你可以跑的最大距离。两者的最小距离是跑的距离。正如你所看到的，你可以跑完全程，但我只能跑15码，所以你得到了100码的触地得分，但我只跑到了15码线。这是“夹紧”yardsXCanRun值低于100码。

这与前面的代码行相同，但与您或我可以运行的100码不同，您只能运行Program.yardsLeft。

Answer 2

我想你想要的是：

    if (Program.yardsLeft >= 80)
    {
        if (Program.chance >= 1 && Program.chance <= 5)
            Program.gained = Program.r.Next(80, (100 + 1));

        else if (Program.chance >= 6 && Program.chance <= 12)
            Program.gained = Program.r.Next(60, (79 + 1));

        else if (Program.chance >= 13 && Program.chance <= 24)
            Program.gained = Program.r.Next(20, (59 + 1));

        else if (Program.chance >= 25 && Program.chance <= 100)
            Program.gained = Program.r.Next(1, (19 + 1));
    }
    else if (Program.yardsLeft <= 79 && Program.yardsLeft >= 60)
    {
        if (Program.chance >= 1 && Program.chance <= 10)
            Program.gained = Program.r.Next(60, 80);

        else if (Program.chance >= 11 && Program.chance <= 30)
            Program.gained = Program.r.Next(20, 60);

        else if (Program.chance >= 31 && Program.chance <= 100)
            Program.gained = Program.r.Next(1, 20);
    }
    else if (Program.yardsLeft <= 59 && Program.yardsLeft >= 40)
    {
        if (Program.chance >= 1 && Program.chance <= 10)
            Program.gained = Program.r.Next(40, 60);

        else if (Program.chance >= 11 && Program.chance <= 30)
            Program.gained = Program.r.Next(20, 40);

        else if (Program.chance >= 31 && Program.chance <= 100)
            Program.gained = Program.r.Next(1, 20);
    }
    else if (Program.yardsLeft <= 39 && Program.yardsLeft >= 20)
    {
        if (Program.chance >= 1 && Program.chance <= 10)
            Program.gained = Program.r.Next(30, 40);

        else if (Program.chance >= 11 && Program.chance <= 30)
            Program.gained = Program.r.Next(10, 30);

        else if (Program.chance >= 31 && Program.chance <= 100)
            Program.gained = Program.r.Next(1, 10);
    }
    else if (Program.yardsLeft <= 19 && Program.yardsLeft !>= 100)
    {
        if (Program.chance >= 1 && Program.chance <= 10)
        Program.gained = Program.r.Next(15, 20);

    if (Program.chance >= 11 && Program.chance <= 30)
        Program.gained = Program.r.Next(10, 15);

    if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, 10);
    }
    else
   {return;}//return the value if over 100

只是你没有提出任何理由来检查在决赛中剩下的场地是否超过了100码。

另一种方法是使用.yardsLeft来实现随机动态，这只会让你得到100，再也不会有任何东西了。

if (Program.chance >= 31 && Program.chance <= 100)
        Program.gained = Program.r.Next(1, program.yardsLeft);