public class Snow
    {
        public Point pos;
        public int size;
        public int speed;
        public bool IsActive;
        public int height;
        public int width;

        Color backColor;
        Graphics draw;

        public Snow()
        {
            this.draw = null;
            this.size = 0;
            this.pos = new Point(0, 0);
            this.speed = 0;
            this.IsActive = false;
        }

        public Snow(Graphics draw, Color backcolor, int height, int width, int xValue, int size, int speed)
        {
            this.draw = draw;
            this.backColor = backcolor;
            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)
        {
            draw.DrawEllipse(new Pen(backColor), 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);
                draw.DrawEllipse(new Pen(Color.Blue), new Rectangle(pos, new Size(size, size)));
                if (pos.Y > height)
                {
                    draw.DrawEllipse(new Pen(backColor), new Rectangle(pos, new Size(size, size)));
                    this.IsActive = false;
                }
            }
            else
            {
                draw.DrawEllipse(new Pen(backColor), new Rectangle(pos, new Size(size, size)));
                this.IsActive = false;
            }

        }
    }