如何使用帶參數的構造函數初始化對象數組？

Question

我正在嘗試爲遊戲生成方程。

我創建了一個類等式中每學期：

[System.Serializable] 
public class EquationTerm 
{ 
    public int Value { get; set; }  //random int between 1 and 9 
    public int Sign { get; set; }  //1 for +, 2 for -, 3 for *, 4 for/
    public bool IsNextTerm { get; set; } 

    //default positive equationTerm 
    public EquationTerm(int value) 
    { 
     Value = value; 
     Sign = 1; 
     IsNextTerm = false; 
    } 

    public EquationTerm(int value, int sign, bool nextTerm) 
    { 
     Value = value; 
     Sign = sign; 
     IsNextTerm = nextTerm; 
    } 
} 

然後，我創建兩個數組，以保持等式的左側和右側。我想使用一個InitializeArray函數來使用我的構造函數來生成這兩個數組，除了我不能使用它們，因爲它們都有參數。 有沒有辦法解決這個問題？

public class EquationGenerator : MonoBehaviour 
{ 
    EquationTerm[] LeftTerms; 
    EquationTerm[] RightTerms; 

    void Start() 
    { 
     //Initialize both side with a random number of terms 
     LeftTerms = InitializeArray<EquationTerm>(Random.Range (1, 6)); 
     RightTerms = InitializeArray<EquationTerm>(Random.Range (1, 6)); 
    } 

    EquationTerm[] InitializeArray<EquationTerm>(int length) where EquationTerm : new() 
    { 
     EquationTerm[] array = new EquationTerm[length]; 
     array [0] = new EquationTerm (Random.Range (1, 10)); 
     for (int i = 1; i < length; ++i) 
     { 
      array[i] = new EquationTerm (Random.Range (1, 10), Random.Range (1, 5), true); 
     } 

     return array; 
    } 

我在其他崗位，我可以用Activator.CreateInstance看到，所以我試着寫

array[0] = (EquationTerm)Activator.CreateInstance(typeof(EquationTerm), new object[] { EquationTerm (Random.Range (1, 10)) }); 

，但它告訴我，激活不存在。

Answer 1

你爲什麼不嘗試一個非通用版本：

public class EquationGenerator 
     { 
      EquationTerm[] LeftTerms; 
      EquationTerm[] RightTerms; 

      void Start() 
      { 
       //Initialize both side with a random number of terms 
       LeftTerms = InitializeArray(Random.Range(1, 6)); 
       RightTerms = InitializeArray(Random.Range(1, 6)); 
      } 

      EquationTerm[] InitializeArray(int length) 
      { 

       EquationTerm[] array = new EquationTerm[length]; 
       array[0] = new EquationTerm(Random.Range(1, 10)); 
       for (int i = 1; i < length; ++i) 
       { 
        array[i] = new EquationTerm(Random.Range(1, 10), Random.Range(1, 5), true); 
       } 

       return array; 
      } 
     }