“if”语句太多了？ [英] Too many 'if' statements?

问题描述

以下代码确实可以满足我的需求，但它很难看，过多或其他许多东西。我已经看过公式并试图写出一些解决方案，但我最终得到了相似数量的陈述。

The following code does work how I need it to, but it's ugly, excessive or a number of other things. I've looked at formulas and attempted to write a few solutions, but I end up with a similar amount of statements.

是否有一种数学公式会受益在这种情况下，我是16，如果声明可以接受？

Is there a type of math formula that would benefit me in this instance or are 16 if statements acceptable?

为了解释代码，这是一种基于同步回合的游戏..两个玩家有四个动作按钮每个和结果来自一个数组（0-3），但变量'一'和&如果这有帮助，可以为两个分配任何内容。结果是，0 =既不赢，1 = p1胜，2 = p2胜，3 =双赢。

To explain the code, it's for a kind of simultaneous-turn-based game.. two players have four action buttons each and the results come from an array (0-3), but the variables 'one' & 'two' can be assigned anything if this helps. The result is, 0 = neither win, 1 = p1 wins, 2 = p2 wins, 3 = both win.

public int fightMath(int one, int two) {

    if(one == 0 && two == 0) { result = 0; }
    else if(one == 0 && two == 1) { result = 0; }
    else if(one == 0 && two == 2) { result = 1; }
    else if(one == 0 && two == 3) { result = 2; }
    else if(one == 1 && two == 0) { result = 0; }
    else if(one == 1 && two == 1) { result = 0; }
    else if(one == 1 && two == 2) { result = 2; }
    else if(one == 1 && two == 3) { result = 1; }
    else if(one == 2 && two == 0) { result = 2; }
    else if(one == 2 && two == 1) { result = 1; }
    else if(one == 2 && two == 2) { result = 3; }
    else if(one == 2 && two == 3) { result = 3; }
    else if(one == 3 && two == 0) { result = 1; }
    else if(one == 3 && two == 1) { result = 2; }
    else if(one == 3 && two == 2) { result = 3; }
    else if(one == 3 && two == 3) { result = 3; }

    return result;
}

推荐答案

如果你不能想出一个公式，你可以使用一个表来获得如此有限的结果：

If you cannot come up with a formula, you can use a table for such a limited number of outcomes:

final int[][] result = new int[][] {
  { 0, 0, 1, 2 },
  { 0, 0, 2, 1 },
  { 2, 1, 3, 3 },
  { 1, 2, 3, 3 }
};
return result[one][two];

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