在C＃/ Unity

Question

我在统一程序中平衡方程式时遇到问题。所以我写了一个叫做“均衡器”的脚本来平衡。我的问题是均衡器无法正常工作。有时会有一些“ 0”或溢出异常，但我看不到它了。我非常高兴，希望您能帮助我...

例如一个不起作用的方程：C₆H₆+ O 2→CO 2 + H 2 O

因此，脚本从根本上获得了解决此问题的功能：

pC a H 3 + bO 2→cCO 2 + dH 2 O
6a = c
2b = 2c + d
6a = 2d

private float SolveEquation(string equation, List<float> vars, string varToSolve)
{
    // 1a=1c
    // 2a=1b
    string leftSide = "";
    string rightSide = "";
    bool switchSide = false;
    for (int x = 0; x < equation.Length; x++)
    {
        if (equation[x] == '=') switchSide = true;
        if (!switchSide) leftSide += equation[x];
        else if (switchSide && equation[x] != '=') rightSide += equation[x];
    }

    float divider = 1;
    int sideToSolve = 0;   // 0 = left     1 = right
    // if left side of equation has the given var
    if (leftSide.Contains(varToSolve) && !leftSide.Contains("+"))
    {
        if (leftSide.Replace(varToSolve, "") != "") divider = int.Parse(leftSide.Replace(varToSolve, ""));
        sideToSolve = 1;
    }
    else if (leftSide.Contains(varToSolve))
    {
        for (int x = 1; x < 100; x++)
        {
            divider = x;
            if (leftSide.Contains(x.ToString() + varToSolve)) leftSide = leftSide.Replace(x.ToString() + varToSolve, "");
            leftSide = leftSide.Replace("+", "#");
            leftSide = leftSide.Replace("-", "+");
            leftSide = leftSide.Replace("#", "-");
            rightSide += leftSide;
        }
        sideToSolve = 1;
    }
    // if right side of equation has the given var
    if (rightSide.Contains(varToSolve) && !rightSide.Contains("+"))
    {
        if (rightSide.Replace(varToSolve, "") != "") divider = int.Parse(rightSide.Replace(varToSolve, ""));
        sideToSolve = 0;
    }
    else if (rightSide.Contains(varToSolve))
    {
        for (int x = 1; x < 100; x++)
        {
            divider = x;
            if (rightSide.Contains(x.ToString() + varToSolve)) rightSide = rightSide.Replace(x.ToString() + varToSolve, "");
            rightSide = rightSide.Replace("+", "#");
            rightSide = rightSide.Replace("-", "+");
            rightSide = rightSide.Replace("#", "-");
            leftSide += rightSide;
        }
        sideToSolve = 0;
    }

    float solution = 0;
    List<float> values = new List<float>();
    List<string> signs = new List<string>();
    // come to a solution
    if (sideToSolve == 0)
    {
        string localValue = "";
        signs.Add("+");
        values.Add(1);
        int index = 0;
        for (int x = 0; x < leftSide.Length; x++)
        {
            if (leftSide[x] == '+')
            {
                Debug.Log("Added one value from equation " + leftSide);
                values.Add(1);
            }
        }
        for (int x = 0; x < leftSide.Length; x++)
        {
            if (char.IsNumber(leftSide[x])) localValue += leftSide[x];
            if (char.IsLetter(leftSide[x]))
            {
                if (vars[leftSide[x] - 65] == 0) return 0;
                values[index] = vars[leftSide[x] - 65];
            }
            if (leftSide[x] == '+' || x == leftSide.Length - 1)
            {
                Debug.Log(rightSide + ":  " + localValue);
                if (localValue != "") values[index] *= float.Parse(localValue);
                else return 0;
                localValue = "";
                index++;
                signs.Add("+");
            }
            else if (leftSide[x] == '-' || x == leftSide.Length - 1)
            {
                Debug.Log(rightSide + ":  " + localValue);
                if (localValue != "") values[index] *= float.Parse(localValue);
                else return 0;
                localValue = "";
                index++;
                signs.Add("-");
            }
        }
    }
    if (sideToSolve == 1)
    {
        string localValue = "";
        signs.Add("+");
        values.Add(1);
        int index = 0;
        for (int x = 0; x < rightSide.Length; x++)
        {
            if (rightSide[x] == '+')
            {
                Debug.Log("Added one value from equation " + rightSide);
                values.Add(1);
            }
        }
        for (int x = 0; x < rightSide.Length; x++)
        {
            if (char.IsNumber(rightSide[x])) localValue += rightSide[x];
            if (char.IsLetter(rightSide[x]))
            {
                if (vars[rightSide[x] - 65] == 0) return 0;
                values[index] = vars[rightSide[x] - 65];
            }
            if (rightSide[x] == '+' || x == leftSide.Length - 1)
            {
                Debug.Log(rightSide + ":  " + localValue);
                if (localValue != "") values[index] *= float.Parse(localValue);
                else return 0;
                localValue = "";
                index++;
                signs.Add("+");
            }
            else if (rightSide[x] == '-' || x == leftSide.Length - 1)
            {
                Debug.Log(rightSide + ":  " + localValue);
                if (localValue != "") values[index] *= float.Parse(localValue);
                else return 0;
                localValue = "";
                index++;
                signs.Add("-");
            }
        }
    }

    for (int x = 0; x < values.Count; x++)
    {
        Debug.Log("Values Count: " + values.Count);
        // Debug.Log("Sign Length: " + signs.Count + ", X Index: " + x);
        if (signs[x] == "+") solution += values[x];
        if (signs[x] == "-") solution -= values[x];
    }
    solution /= divider * globalMultiplicator;

    return solution;
}