Helper.cs

    /// <summary>
    ///  This class is used to store common funcions across the game
    /// </summary>
    public static class Helper
    {

        /// <summary>
        /// Returns a list of positions
        /// </summary>
        /// <param name="radius">Radius of the circle</param>
        /// <param name="nPositions">Number of positions to calculate</param>
        /// <returns></returns>
        public static List<Vector2> GetCirclePositions(float radius, float nPositions)
        {
            float degrees = 0;
            float radian = 0f;
            float x;
            float y;

            List<Vector2> result = new List<Vector2>();

            for (int i = 0; i < nPositions; i++)
            {
                degrees = i * (360 / nPositions);
                radian = (degrees * ((float)Math.PI / 180));
                x = radius * (float)Math.Sin(radian);
                y= radius * (float)Math.Cos(radian);

                result.Add(new Vector2(x, y));
            }
            return result;
        }

    }