bool polygon::Intersect(const ray &R, intersection &inter)
{
    // To Do: If you have implemented the "CalculateNormal" method
    // below, should already be calculated and placed in the member
    // "n".
    //
    // Now, using n, you need to calculate the intersection of the
    // ray with the plane containing the polygon.  Then, once you
    // have that point, you need to loop through each edge in the
    // polygon and make sure the point is to the left of that edge.
    //
    // If it is to the left of every edge, then fill the structure
    // inter with all of the data for the intersection and return
    // true, if not, return 0.
    //
    // Don't forget to check to see if the t you calculate for the
    // ray is > 0.

    return false;
}

void polygon::CalculateNormal(void)
{
    // To Do: Use the edges of the polygon to calculate the normal
    // of the polygon. You should be careful to take care of the
    // case where two edges give you a zero normal.  Place the
    // normal into the member "n" so that the intersection method
    // can use it when called.
    //
}