/// <summary>
/// Determines whether a certain area lies within a circle.
/// </summary>
/// <param name="area">The area to check for collision in entity space.</param>
/// <param name="rotation">This is ignored for circles.</param>
/// <returns><c>true</c> if <paramref name="area"/> does collide with the circle, <c>false</c>.</returns>
public override bool CollisionTest(Quadrangle area, float rotation)
{
// Empty or negative circles can never intersect
if (Radius <= 0)
{
return(false);
}
// Shift area to the circle center as the origin
return(area.IntersectCircle(Radius));
}
