peterkcodes

    /// <summary>
    /// From 'A Fast Voxel Traversal Algorithm for Ray Tracing'
    /// by Amanatides and Woo
    /// http://www.cse.yorku.ca/~amana/research/grid.pdf
    /// </summary>
    private static void Trace(Vector3 origin, Vector3 direction, float maxDistance)
    {
        //Initialization
        int x = Mathf.FloorToInt(origin.x);
        int y = Mathf.FloorToInt(origin.y);