Archief - C# random dictionary item

class Piece: Sprite
    {
        Dictionary<string, Color> _pieceColors = new Dictionary<string, Color>();

        public Piece()
        {
            _pieceColors["red"] = new Color(1, 0, 0, 1);
            _pieceColors["green"] = new Color(0, 1, 0, 1);
            _pieceColors["blue"] = new Color(0, 0, 1, 1);
            _pieceColors["yellow"] = new Color(1, 1, 0, 1);

            List<string> keyList = new List<string>(_pieceColors.Keys);
            int size = _pieceColors.Count;
            Random rand = new Random();            
            string randomKey = keyList[rand.Next(size)];
            
            Color col = _pieceColors[randomKey];

            this.SetColor(col);
            
            this.SetWidth(50);
            this.SetHeight(50);
        }

        public void Render(Renderer _renderer)
        {
            _renderer.DrawSprite(this);
        }
    }

board = new Piece[_rows, _cols];

            double gap = 10;
            double x = -25; //50/2
            double y = -35;
            for (int r = 0; r < _rows; r++)
            {
                for (int c = 0; c < _cols; c++)
                {
                    Piece p = new Piece();
                    p.SetPosition(new Vector(x, y,0));
                    x += p.GetWidth();
                    x += gap;
                    board[r, c] = p;
                }
                x = -25;
                y -= 50;
                y -= gap;
            }

class Piece: Sprite
    {
        private Color _color; // Tenzij je die niet wilt bijhouden

        public Piece()
        {
           Random r = new Random();
            _color = new Color(r.Next(1), r.Next(1), r.Next(1), r.Next(1));
        }
....