Tetris/Models/Grid.cs

using System.Drawing;

namespace Tetris.Models;

public class Grid
{
    private readonly Color[,] _grid;

    public Grid(Color[,] grid)
    {
        _grid = grid;
    }

    public Point MinGrid => new(0, 0);
    public Point MaxGrid => new(_grid.GetLength(0) - 1, _grid.GetLength(1) - 1);

    public bool CanGo(Tetrominoe tetrominoe, Point point)
    {
        var shape = tetrominoe.Shape;
        if (point.X < MinGrid.X || point.Y < MinGrid.Y)
            return false;

        if (point.X + tetrominoe.Shape.GetLength(0) > MaxGrid.X || point.Y + tetrominoe.Shape.GetLength(1) > MaxGrid.Y)
            return false;

        for (uint x = 0; x < shape.GetLength(0); x++)
        for (uint y = 0; y < shape.GetLength(1); y++)
        {
            var s = point + new Size((int)x, (int)y);
            if (shape[x, y] && _grid[s.X, s.Y] != Color.Empty)
                return false;
        }

        return true;
    }

    public override string ToString()
    {
        var s = "";
        for (uint y = 0; y < _grid.GetLength(1); y++)
        {
            for (uint x = 0; x < _grid.GetLength(0); x++)
                s += _grid[x, y].Name + "\t";
            s += "\n";
        }

        return s;
    }
}