Function HandleViewportClicked

src/viewport.cpp:2495–2525

bool HandleViewportClicked(const Viewport &vp, int x, int y)
{
	const Vehicle *v = CheckClickOnVehicle(vp, x, y);

	if (_thd.place_mode & HT_VEHICLE) {
		if (v != nullptr && VehicleClicked(v)) return true;
	}

	/* Vehicle placement mode already handled above. */
	if ((_thd.place_mode & HT_DRAG_MASK) != HT_NONE) {
		PlaceObject();
		return true;
	}

	if (CheckClickOnViewportSign(vp, x, y)) return true;
	bool result = CheckClickOnLandscape(vp, x, y);

	if (v != nullptr) {
		Debug(misc, 2, "Vehicle {} (index {}) at {}", v->unitnumber, v->index, fmt::ptr(v));
		if (IsCompanyBuildableVehicleType(v)) {
			v = v->First();
			if (_ctrl_pressed && v->owner == _local_company) {
				StartStopVehicle(v, true);
			} else {
				ShowVehicleViewWindow(v);
			}
		}
		return true;
	}
	return result;
}

void RebuildViewportOverlay(Window *w)
{