/* $Id$ */ /* * 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 water.h Functions related to water (management) */ #ifndef WATER_H #define WATER_H #include "tile_type.h" #include "company_type.h" #include "slope_type.h" #include "water_map.h" #include "economy_func.h" #include "core/math_func.hpp" /** * Describes the behaviour of a tile during flooding. */ enum FloodingBehaviour { FLOOD_NONE, ///< The tile does not flood neighboured tiles. FLOOD_ACTIVE, ///< The tile floods neighboured tiles. FLOOD_PASSIVE, ///< The tile does not actively flood neighboured tiles, but it prevents them from drying up. FLOOD_DRYUP, ///< The tile drys up if it is not constantly flooded from neighboured tiles. }; FloodingBehaviour GetFloodingBehaviour(TileIndex tile); void TileLoop_Water(TileIndex tile); bool FloodHalftile(TileIndex t); void DoFloodTile(TileIndex target); void ConvertGroundTilesIntoWaterTiles(); void DrawShipDepotSprite(int x, int y, Axis axis, DepotPart part); void DrawWaterClassGround(const struct TileInfo *ti); void DrawShoreTile(Slope tileh); void MakeWaterKeepingClass(TileIndex tile, Owner o); bool RiverModifyDesertZone(TileIndex tile, void *data); /** * Calculates the maintenance cost of a number of canal tiles. * @param num Number of canal tiles. * @return Total cost. */ static inline Money CanalMaintenanceCost(uint32 num) { return (_price[PR_INFRASTRUCTURE_WATER] * num * (1 + IntSqrt(num))) >> 6; // 6 bits scaling. } #endif /* WATER_H */