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/* $Id$ */
/** @file ai_marine.hpp Everything to query and build marine. */
#ifndef AI_MARINE_HPP
#define AI_MARINE_HPP
#include "ai_object.hpp"
#include "ai_error.hpp"
/**
* Class that handles all marine related functions.
*/
class AIMarine : public AIObject {
public:
static const char *GetClassName() { return "AIMarine"; }
/**
* All marine related error messages.
*/
enum ErrorMessages {
/** Base for marine related errors */
ERR_MARINE_BASE = AIError::ERR_CAT_MARINE << AIError::ERR_CAT_BIT_SIZE,
/** Infrastructure must be built on water */
ERR_MARINE_MUST_BE_BUILT_ON_WATER, // [STR_3801_MUST_BE_BUILT_ON_WATER]
};
/**
* Checks whether the given tile is actually a tile with a water depot.
* @param tile The tile to check.
* @pre AIMap::IsValidTile(tile).
* @return True if and only if the tile has a water depot.
*/
static bool IsWaterDepotTile(TileIndex tile);
/**
* Checks whether the given tile is actually a tile with a dock.
* @param tile The tile to check.
* @pre AIMap::IsValidTile(tile).
* @return True if and only if the tile has a dock.
*/
static bool IsDockTile(TileIndex tile);
/**
* Checks whether the given tile is actually a tile with a buoy.
* @param tile The tile to check.
* @pre AIMap::IsValidTile(tile).
* @return True if and only if the tile has a buoy.
*/
static bool IsBuoyTile(TileIndex tile);
/**
* Checks whether the given tile is actually a tile with a lock.
* @param tile The tile to check.
* @pre AIMap::IsValidTile(tile).
* @return True if and only if the tile has a lock.
*/
static bool IsLockTile(TileIndex tile);
/**
* Checks whether the given tile is actually a tile with a canal.
* @param tile The tile to check.
* @pre AIMap::IsValidTile(tile).
* @return True if and only if the tile has a canal.
*/
static bool IsCanalTile(TileIndex tile);
/**
* Checks whether the given tiles are directly connected, i.e. whether
* a ship vehicle can travel from the center of the first tile to the
* center of the second tile.
* @param tile_from The source tile.
* @param tile_to The destination tile.
* @pre AIMap::IsValidTile(tile_from).
* @pre AIMap::IsValidTile(tile_to).
* @pre 'tile_from' and 'tile_to' are directly neighbouring tiles.
* @return True if and only if a ship can go from tile_from to tile_to.
*/
static bool AreWaterTilesConnected(TileIndex tile_from, TileIndex tile_to);
/**
* Builds a water depot on tile.
* @param tile The tile where the water depot will be build.
* @param front A tile on the same axis with 'tile' as the depot shall be oriented
* @pre AIMap::IsValidTile(tile).
* @pre AIMap::IsValidTile(front).
* @exception AIError::ERR_AREA_NOT_CLEAR
* @exception AIError::ERR_SITE_UNSUITABLE
* @exception AIMarine::ERR_MARINE_MUST_BE_BUILT_ON_WATER
* @return Whether the water depot has been/can be build or not.
* @note A WaterDepot is 1 tile in width, and 2 tiles in length.
*/
static bool BuildWaterDepot(TileIndex tile, TileIndex front);
/**
* Builds a dock where tile is the tile still on land.
* @param tile The tile still on land of the dock.
* @param station_id The station to join, AIStation::STATION_NEW or AIStation::STATION_JOIN_ADJACENT.
* @pre AIMap::IsValidTile(tile).
* @pre station_id == AIStation::STATION_NEW || station_id == AIStation::STATION_JOIN_ADJACENT || AIStation::IsValidStation(station_id).
* @exception AIError::ERR_AREA_NOT_CLEAR
* @exception AIError::ERR_SITE_UNSUITABLE
* @exception AIStation::ERR_STATION_TOO_CLOSE_TO_ANOTHER_STATION
* @exception AIStation::ERR_STATION_TOO_MANY_STATIONS
* @return Whether the dock has been/can be build or not.
*/
static bool BuildDock(TileIndex tile, StationID station_id);
/**
* Builds a buoy on tile.
* @param tile The tile where the buoy will be build.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_AREA_NOT_CLEAR
* @exception AIError::ERR_SITE_UNSUITABLE
* @exception AIStation::ERR_STATION_TOO_MANY_STATIONS
* @return Whether the buoy has been/can be build or not.
*/
static bool BuildBuoy(TileIndex tile);
/**
* Builds a lock on tile.
* @param tile The tile where the lock will be build.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_LAND_SLOPED_WRONG
* @exception AIError::ERR_SITE_UNSUITABLE
* @return Whether the lock has been/can be build or not.
*/
static bool BuildLock(TileIndex tile);
/**
* Builds a canal on tile.
* @param tile The tile where the canal will be build.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_AREA_NOT_CLEAR
* @exception AIError::ERR_LAND_SLOPED_WRONG
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @exception AIError::ERR_ALREADY_BUILT
* @return Whether the canal has been/can be build or not.
*/
static bool BuildCanal(TileIndex tile);
/**
* Removes a water depot.
* @param tile Any tile of the water depot.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @return Whether the water depot has been/can be removed or not.
*/
static bool RemoveWaterDepot(TileIndex tile);
/**
* Removes a dock.
* @param tile Any tile of the dock.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @return Whether the dock has been/can be removed or not.
*/
static bool RemoveDock(TileIndex tile);
/**
* Removes a buoy.
* @param tile Any tile of the buoy.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @return Whether the buoy has been/can be removed or not.
*/
static bool RemoveBuoy(TileIndex tile);
/**
* Removes a lock.
* @param tile Any tile of the lock.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @return Whether the lock has been/can be removed or not.
*/
static bool RemoveLock(TileIndex tile);
/**
* Removes a canal.
* @param tile Any tile of the canal.
* @pre AIMap::IsValidTile(tile).
* @exception AIError::ERR_OWNED_BY_ANOTHER_COMPANY
* @return Whether the canal has been/can be removed or not.
*/
static bool RemoveCanal(TileIndex tile);
};
#endif /* AI_MARINE_HPP */
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