/* $Id$ */ /* * 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 ai_marine.cpp Implementation of AIMarine. */ #include "ai_marine.hpp" #include "ai_station.hpp" #include "../../station_base.h" #include "../../tile_cmd.h" #include "../../economy_func.h" /* static */ bool AIMarine::IsWaterDepotTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_WATER) && ::GetWaterTileType(tile) == WATER_TILE_DEPOT; } /* static */ bool AIMarine::IsDockTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_STATION) && ::IsDock(tile); } /* static */ bool AIMarine::IsBuoyTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_STATION) && ::IsBuoy(tile); } /* static */ bool AIMarine::IsLockTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_WATER) && ::GetWaterTileType(tile) == WATER_TILE_LOCK; } /* static */ bool AIMarine::IsCanalTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_WATER) && ::IsCanal(tile); } /* static */ bool AIMarine::AreWaterTilesConnected(TileIndex t1, TileIndex t2) { if (!::IsValidTile(t1)) return false; if (!::IsValidTile(t2)) return false; /* Tiles not neighbouring */ if (::DistanceManhattan(t1, t2) != 1) return false; DiagDirection to_other_tile = ::DiagdirBetweenTiles(t2, t1); /* Determine the reachable tracks from the shared edge */ TrackBits gtts1 = ::TrackStatusToTrackBits(::GetTileTrackStatus(t1, TRANSPORT_WATER, 0, to_other_tile)) & ::DiagdirReachesTracks(to_other_tile); if (gtts1 == TRACK_BIT_NONE) return false; to_other_tile = ReverseDiagDir(to_other_tile); TrackBits gtts2 = ::TrackStatusToTrackBits(::GetTileTrackStatus(t2, TRANSPORT_WATER, 0, to_other_tile)) & ::DiagdirReachesTracks(to_other_tile); return gtts2 != TRACK_BIT_NONE; } /* static */ bool AIMarine::BuildWaterDepot(TileIndex tile, TileIndex front) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, ::IsValidTile(front)); EnforcePrecondition(false, (::TileX(front) == ::TileX(tile)) != (::TileY(front) == ::TileY(tile))); return AIObject::DoCommand(tile, ::TileX(front) == ::TileX(tile), 0, CMD_BUILD_SHIP_DEPOT); } /* static */ bool AIMarine::BuildDock(TileIndex tile, StationID station_id) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, station_id == AIStation::STATION_NEW || station_id == AIStation::STATION_JOIN_ADJACENT || AIStation::IsValidStation(station_id)); uint p1 = station_id == AIStation::STATION_JOIN_ADJACENT ? 0 : 1; uint p2 = (AIStation::IsValidStation(station_id) ? station_id : INVALID_STATION) << 16; return AIObject::DoCommand(tile, p1, p2, CMD_BUILD_DOCK); } /* static */ bool AIMarine::BuildBuoy(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_BUILD_BUOY); } /* static */ bool AIMarine::BuildLock(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_BUILD_LOCK); } /* static */ bool AIMarine::BuildCanal(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); return AIObject::DoCommand(tile, tile, WATER_CLASS_CANAL, CMD_BUILD_CANAL); } /* static */ bool AIMarine::RemoveWaterDepot(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, IsWaterDepotTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ bool AIMarine::RemoveDock(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, IsDockTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ bool AIMarine::RemoveBuoy(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, IsBuoyTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ bool AIMarine::RemoveLock(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, IsLockTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ bool AIMarine::RemoveCanal(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, IsCanalTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ Money AIMarine::GetBuildCost(BuildType build_type) { switch (build_type) { case BT_DOCK: return ::GetPrice(PR_BUILD_STATION_DOCK, 1, NULL); case BT_DEPOT: return ::GetPrice(PR_BUILD_DEPOT_SHIP, 1, NULL); case BT_BUOY: return ::GetPrice(PR_BUILD_WAYPOINT_BUOY, 1, NULL); default: return -1; } }