如何更改二维数组中的值

Question

I am stuck with this two dimension array with Unity framework coding with c#. I am trying to create a Checker game with an Intelligent agent. So I trying to get all the pieces and passing to the Alpha Beta algorithm and get the maximum amount of Opponent side. But in order to do that I have to check each piece on my board. I am using 8by8 board on my game. So I used

Piece[,] pieces = new Pieces[8,8];

code in order to store the pieces. Now I want to change one piece and retrieve the pieces. I tried in several ways and experimented, But I could not found any to take this array and change one generic object and retrieve the list with the changes.

Please help me to solve this. Thanks in advance.

I written down here about what I experimented. Any suggestions about this matter or did I do something wrong?....

internal static void TryMoveInImaginaryWay(Piece[,] piece)
{
    int x = 0;
    int y =2;
    int x1 = 1;
    int y1 = 3;

    Moves move = new Moves();
    move.X = x;
    move.Y = y;
    move.X1 = x1;
    move.Y1 = y1;

    // Copping the pieces state
    Piece p = piece[x, y];

    //I am creating a list with those pieces
    List<Piece> temppiecelist = new List<Piece>();

    foreach (Piece pi in piece)
    {
        if (pi == p)
        {
            piece[x1, y1] = p;
            temppiecelist.Add(null);
        }
        else
        {
            temppiecelist.Add(pi);
        }
    }

    Piece[,] piek = temppiecelist; // can't convert it says Cannot Implicitly convert type "System.Collection.Generic.List<Piece>' to Piece[*,*]'"

    // I know i can't convert like this, but any ideas.
    //Piece[,] piek = new Piece[8, 8];

I am asking about , Is there any way to change above Piece[,] array list values. And I want the same format as output.

Answer 1

It looks like what you are trying to do is make a copy of the board and then make a move on that board.

Why on you would get a List involved I cannot figure out; what led you to believe that a List was the right solution? I am interested to know; by learning why people come to bad conclusions about program writing, I can help them write better programs.

To make a mutated copy of the board, just copy the board and mutate the copy :

internal static void TryMoveInImaginaryWay(Piece[,] original)
{
    int x0 = 0;
    int y0 = 2;
    int x1 = 1;
    int y1 = 3;
    Piece[,] copy = (Piece[,])original.Clone();
    copy[x1,y1] = copy[x0,y0];
    copy[x0,y0] = null;

And you're done.