bool Mutate() {
bool dirty = false;
if (DoMutate(AddPolyMutation))
dirty |= AddPoly();
if (DoMutate(DelPolyMutation))
dirty |= DelPoly();
if (DoMutate(MovePolyMutation))
dirty |= MovePoly();
for (PolyIt it = poly_.begin(); it != poly_.end(); ++it)
dirty |= it->Mutate();
return dirty;
}
//Resets polygon for arrow to avoid cumulative rounding errors
void ResetArrow() {
//define a triangle polygon
arrow[0].x=80;
arrow[0].y=20;
arrow[1].x=50;
arrow[1].y=90;
arrow[2].x=80;
arrow[2].y=70;
arrow[3].x=110;
arrow[3].y=90;
//I could define it small but I
//wanted to test these routines!
ScalePoly(4, arrow, 80, 60, 0.3);
MovePoly(4, arrow, -60, -40);
}