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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file road_internal.h Functions used internally by the roads. */
#ifndef ROAD_INTERNAL_H
#define ROAD_INTERNAL_H
#include "tile_cmd.h"
#include "road_type.h"
/**
* Clean up unneccesary RoadBits of a planed tile.
* @param tile current tile
* @param org_rb planed RoadBits
* @return optimised RoadBits
*/
RoadBits CleanUpRoadBits(const TileIndex tile, RoadBits org_rb);
/**
* Is it allowed to remove the given road bits from the given tile?
* @param tile the tile to remove the road from
* @param remove the roadbits that are going to be removed
* @param owner the actual owner of the roadbits of the tile
* @param rt the road type to remove the bits from
* @param flags command flags
* @param town_check Shall the town rating checked/affected
* @return true when it is allowed to remove the road bits
*/
bool CheckAllowRemoveRoad(TileIndex tile, RoadBits remove, Owner owner, RoadType rt, DoCommandFlag flags, bool town_check = true);
/**
* Draw the catenary for tram road bits
* @param ti information about the tile (position, slope)
* @param tram the roadbits to draw the catenary for
*/
void DrawTramCatenary(const TileInfo *ti, RoadBits tram);
#endif /* ROAD_INTERNAL_H */
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