public boolean mousedown(Coord c, int button) {
		if (button == 1) {
			if (ui.modctrl) {
				ui.grabmouse(this);
				dm = true;
				doff = c;
			} else {
				Coord tc = localToReal(c);
				mv.map_abs_click(tc.x, tc.y, button, 0);
				return false;
			}
		}
		return (true);
	}