Function PlaceRoad_Waypoint

src/road_gui.cpp:255–272

* Place a road waypoint. * @param tile Position to start dragging a waypoint. */

 * @param tile Position to start dragging a waypoint.
 */
static void PlaceRoad_Waypoint(TileIndex tile)
{
	if (_remove_button_clicked) {
		VpStartPlaceSizing(tile, VPM_X_AND_Y, DDSP_REMOVE_ROAD_WAYPOINT);
		return;
	}

	Axis axis = GetAxisForNewRoadWaypoint(tile);
	if (IsValidAxis(axis)) {
		/* Valid tile for waypoints */
		VpStartPlaceSizing(tile, axis == AXIS_X ? VPM_X_LIMITED : VPM_Y_LIMITED, DDSP_BUILD_ROAD_WAYPOINT);
		VpSetPlaceSizingLimit(_settings_game.station.station_spread);
	} else {
		/* Tile where we can't build road waypoints. This is always going to fail,
		 * but provides the user with a proper error message. */
		Command<CMD_BUILD_ROAD_WAYPOINT>::Post(STR_ERROR_CAN_T_BUILD_ROAD_WAYPOINT, tile, AXIS_X, 1, 1, ROADSTOP_CLASS_WAYP, 0, StationID::Invalid(), false);
	}
}

/**
 * Callback for placing a bus station.