#pragma once struct IntRect { int left, top; int width, height; void Offset(int xofs, int yofs) { left += xofs; top += yofs; } void AddToRect(int x, int y) { if (x < left) left = x; if (x > left + width) width = x - left; if (y < top) top = y; if (y > top + height) height = y - top; } };