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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 newgrf_canal.h Handling of NewGRF canals. */
#ifndef NEWGRF_CANAL_H
#define NEWGRF_CANAL_H
#include "gfx_type.h"
#include "tile_type.h"
#include "newgrf_generic.h"
/**
* List of different canal 'features'.
* Each feature gets an entry in the canal spritegroup table */
enum CanalFeature {
CF_WATERSLOPE,
CF_LOCKS,
CF_DIKES,
CF_ICON,
CF_DOCKS,
CF_RIVER_SLOPE,
CF_RIVER_EDGE,
CF_END,
};
struct WaterFeature {
const SpriteGroup *group;
const GRFFile *grffile; ///< newgrf where 'group' belongs to
uint8 callback_mask; ///< Bitmask of canal callbacks that have to be called
uint8 flags;
};
/** Table of canal 'feature' sprite groups */
extern WaterFeature _water_feature[CF_END];
/**
* Lookup the base sprite to use for a canal.
* @param feature Which canal feature we want.
* @param tile Tile index of canal, if appropriate.
* @return Base sprite returned by GRF, or 0 if none.
*/
SpriteID GetCanalSprite(CanalFeature feature, TileIndex tile);
#endif /* NEWGRF_CANAL_H */
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