public override Projection Project(Vector2 a)
{
Projection p = new Projection();
p.Axis = a;
p.Min = float.MaxValue;
p.Max = float.MinValue;
foreach (Vector2 v in this.GetTransformedVertices())
{
float d = Vector2.Dot(v, a);
if (d < p.Min) p.Min = d;
if (d > p.Max) p.Max = d;
}
return p;
}
/// <summary>
/// calculates the separation distance between projection intervals. will be negative if they overlap.
/// </summary>
/// <param name="a"></param>
/// <param name="b"></param>
/// <returns></returns>
public static float IntervalDist(Projection a, Projection b)
{
if (a.Axis != b.Axis) throw new Exception("oh shit, someone divided by zero.\r\n I SWEAR IT WASN'T ME.");
if (a.Min < b.Min) return b.Min - a.Max;
return a.Min - b.Max;
}