public class Snow
    {
        public Point pos;
        public int size;
        public int speed;
        public bool IsActive;
        public int height;
        public int width;
        System.Drawing.Color radiera;
        System.Drawing.Graphics desen;
        public Snow()
        {
            this.desen = null;
            this.size = 0;
            this.pos = new Point(0, 0);
            this.speed = 0;
            this.IsActive = false;
        }
        public Snow(Graphics desen, Color radiera, int height, int width, int xValue, int size, int speed)
        {
            this.desen = desen;
            this.radiera = radiera;
            this.height = height;
            this.width = width;
            this.pos = new Point(xValue, 0);
            this.size = size;
            this.speed = speed;
            this.IsActive = true;
        }
        public void Fall(int windSpeed)
        {
            desen.DrawEllipse(new Pen(radiera), new Rectangle(pos, new Size(size, size)));
            if (pos.X + windSpeed > 0 && pos.X + windSpeed < width)
            {
                pos = new Point(pos.X + windSpeed, pos.Y + speed);
                desen.DrawEllipse(new Pen(Color.Blue), new Rectangle(pos, new Size(size, size)));
                if (pos.Y > height)
                {
                    desen.DrawEllipse(new Pen(radiera), new Rectangle(pos, new Size(size, size)));
                    this.IsActive = false;
                }
            }
            else
            {
                desen.DrawEllipse(new Pen(radiera), new Rectangle(pos, new Size(size, size)));
                this.IsActive = false;
            }
        }
    }