OurGamesForCourse

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namespace PauchiaUkladka;
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public class GameGrid
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{
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    private readonly int[,] grid;
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    public int Rows
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    {
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        get;
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    }
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    public int Colums
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    {
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        get;
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    }
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    public int this[int r, int c]
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    {
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        get
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        {
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            return grid[r, c];
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        }
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        set
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        {
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            grid[r, c] = value;
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        }
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    }
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    public GameGrid(int rows, int colums)
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    {
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        Rows = rows;
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        Colums = colums;
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        grid = new int[rows, colums];
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    }
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    public bool IsInside(int r, int c)
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    {
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        if ((r >= 0) && (r < Rows) && (c >= 0) && (c < Colums))
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            return true;
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        else
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            return false;
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    }
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    public bool IsEmpty(int r, int c)
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    {
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        if (IsInside(r, c) && (grid[r, c] == 0))
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            return true;
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        else
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            return false;
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    }
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    public bool IsRowFull(int r)
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    {
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        for (int c = 0; c < Colums; c++)
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        {
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            if (grid[r, c] == 0)
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                return false;
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        }
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        return true;
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    }
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    public bool IsRowEmpty(int r)
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    {
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        for (int c = 0; c < Colums; c++)
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        {
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            if (grid[r, c] != 0)
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                return false;
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        }
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        return true;
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    }
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    private void ClearRow(int r)
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    {
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        for (int c = 0; c < Colums; c++)
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            grid[r, c] = 0;
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    }
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    private void MoveRowDown(int r, int numRows)
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    {
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        for (int c = 0; c < Colums; c++)
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        {
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            grid[r + numRows, c] = grid[r, c];
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            grid[r, c] = 0;
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        }
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    }
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    public int ClearFullRows()
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    {
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        int cleard = 0;
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        for (int r = Rows-1; r >= 0; r--)
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        {
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            if (IsRowFull(r))
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            {
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                ClearRow(r);
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                cleard++;
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            }
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            else if (cleard > 0)
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            {
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                MoveRowDown(r, cleard);
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            }
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        }
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        return cleard;
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    }
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}