/* $Id$ */ /* * 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_tile.cpp Implementation of AITile. */ #include "ai_tile.hpp" #include "ai_map.hpp" #include "ai_town.hpp" #include "../../station_func.h" #include "../../company_func.h" #include "../../water_map.h" #include "../../clear_map.h" #include "../../tree_map.h" #include "../../town.h" #include "../../landscape.h" #include "../../economy_func.h" /* static */ bool AITile::IsBuildable(TileIndex tile) { if (!::IsValidTile(tile)) return false; switch (::GetTileType(tile)) { default: return false; case MP_CLEAR: return true; case MP_TREES: return true; case MP_WATER: return IsCoast(tile); case MP_ROAD: /* Tram bits aren't considered buildable */ if (::GetRoadTypes(tile) != ROADTYPES_ROAD) return false; /* Depots and crossings aren't considered buildable */ if (::GetRoadTileType(tile) != ROAD_TILE_NORMAL) return false; if (!HasExactlyOneBit(::GetRoadBits(tile, ROADTYPE_ROAD))) return false; if (::IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN)) return true; if (::IsRoadOwner(tile, ROADTYPE_ROAD, _current_company)) return true; return false; } } /* static */ bool AITile::IsBuildableRectangle(TileIndex tile, uint width, uint height) { uint tx, ty; tx = AIMap::GetTileX(tile); ty = AIMap::GetTileY(tile); for (uint x = tx; x < width + tx; x++) { for (uint y = ty; y < height + ty; y++) { if (!IsBuildable(AIMap::GetTileIndex(x, y))) return false; } } return true; } /* static */ bool AITile::IsWaterTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_WATER) && !::IsCoast(tile); } /* static */ bool AITile::IsCoastTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_WATER) && ::IsCoast(tile)) || (::IsTileType(tile, MP_TREES) && ::GetTreeGround(tile) == TREE_GROUND_SHORE); } /* static */ bool AITile::IsStationTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_STATION); } /* static */ bool AITile::IsSteepSlope(Slope slope) { if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false; return ::IsSteepSlope((::Slope)slope); } /* static */ bool AITile::IsHalftileSlope(Slope slope) { if ((slope & ~(SLOPE_ELEVATED | SLOPE_STEEP | SLOPE_HALFTILE_MASK)) != 0) return false; return ::IsHalftileSlope((::Slope)slope); } /* static */ bool AITile::HasTreeOnTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return ::IsTileType(tile, MP_TREES); } /* static */ bool AITile::IsFarmTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_FIELDS)); } /* static */ bool AITile::IsRockTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_CLEAR) && ::GetRawClearGround(tile) == ::CLEAR_ROCKS); } /* static */ bool AITile::IsRoughTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_CLEAR) && ::GetRawClearGround(tile) == ::CLEAR_ROUGH); } /* static */ bool AITile::IsSnowTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_CLEAR) && ::IsSnowTile(tile)); } /* static */ bool AITile::IsDesertTile(TileIndex tile) { if (!::IsValidTile(tile)) return false; return (::IsTileType(tile, MP_CLEAR) && ::IsClearGround(tile, CLEAR_DESERT)); } /* static */ AITile::Slope AITile::GetSlope(TileIndex tile) { if (!::IsValidTile(tile)) return SLOPE_INVALID; return (Slope)::GetTileSlope(tile, NULL); } /* static */ AITile::Slope AITile::GetComplementSlope(Slope slope) { if ((slope & ~SLOPE_ELEVATED) != 0) return SLOPE_INVALID; return (Slope)::ComplementSlope((::Slope)slope); } /* static */ int32 AITile::GetMinHeight(TileIndex tile) { if (!::IsValidTile(tile)) return -1; return ::GetTileZ(tile) / ::TILE_HEIGHT; } /* static */ int32 AITile::GetMaxHeight(TileIndex tile) { if (!::IsValidTile(tile)) return -1; return ::GetTileMaxZ(tile) / ::TILE_HEIGHT; } /* static */ int32 AITile::GetCornerHeight(TileIndex tile, Corner corner) { if (!::IsValidTile(tile) || !::IsValidCorner((::Corner)corner)) return -1; uint z; ::Slope slope = ::GetTileSlope(tile, &z); return (z + ::GetSlopeZInCorner(slope, (::Corner)corner)) / ::TILE_HEIGHT; } /* static */ AICompany::CompanyID AITile::GetOwner(TileIndex tile) { if (!::IsValidTile(tile)) return AICompany::COMPANY_INVALID; if (::IsTileType(tile, MP_HOUSE)) return AICompany::COMPANY_INVALID; if (::IsTileType(tile, MP_INDUSTRY)) return AICompany::COMPANY_INVALID; return AICompany::ResolveCompanyID((AICompany::CompanyID)(byte)::GetTileOwner(tile)); } /* static */ bool AITile::HasTransportType(TileIndex tile, TransportType transport_type) { if (!::IsValidTile(tile)) return false; return ::TrackStatusToTrackdirBits(::GetTileTrackStatus(tile, (::TransportType)transport_type, UINT32_MAX)) != TRACKDIR_BIT_NONE; } /* static */ int32 AITile::GetCargoAcceptance(TileIndex tile, CargoID cargo_type, int width, int height, int radius) { if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1; CargoArray acceptance = ::GetAcceptanceAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED); return acceptance[cargo_type]; } /* static */ int32 AITile::GetCargoProduction(TileIndex tile, CargoID cargo_type, int width, int height, int radius) { if (!::IsValidTile(tile) || width <= 0 || height <= 0 || radius < 0) return -1; CargoArray produced = ::GetProductionAroundTiles(tile, width, height, _settings_game.station.modified_catchment ? radius : (int)CA_UNMODIFIED); return produced[cargo_type]; } /* static */ int32 AITile::GetDistanceManhattanToTile(TileIndex tile_from, TileIndex tile_to) { return AIMap::DistanceManhattan(tile_from, tile_to); } /* static */ int32 AITile::GetDistanceSquareToTile(TileIndex tile_from, TileIndex tile_to) { return AIMap::DistanceSquare(tile_from, tile_to); } /* static */ bool AITile::RaiseTile(TileIndex tile, int32 slope) { EnforcePrecondition(false, tile < ::MapSize()); return AIObject::DoCommand(tile, slope, 1, CMD_TERRAFORM_LAND); } /* static */ bool AITile::LowerTile(TileIndex tile, int32 slope) { EnforcePrecondition(false, tile < ::MapSize()); return AIObject::DoCommand(tile, slope, 0, CMD_TERRAFORM_LAND); } /* static */ bool AITile::LevelTiles(TileIndex start_tile, TileIndex end_tile) { EnforcePrecondition(false, start_tile < ::MapSize()); EnforcePrecondition(false, end_tile < ::MapSize()); return AIObject::DoCommand(end_tile, start_tile, 0, CMD_LEVEL_LAND); } /* static */ bool AITile::DemolishTile(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); return AIObject::DoCommand(tile, 0, 0, CMD_LANDSCAPE_CLEAR); } /* static */ bool AITile::PlantTree(TileIndex tile) { EnforcePrecondition(false, ::IsValidTile(tile)); return AIObject::DoCommand(tile, TREE_INVALID, tile, CMD_PLANT_TREE); } /* static */ bool AITile::PlantTreeRectangle(TileIndex tile, uint width, uint height) { EnforcePrecondition(false, ::IsValidTile(tile)); EnforcePrecondition(false, width >= 1 && width <= 20); EnforcePrecondition(false, height >= 1 && height <= 20); TileIndex end_tile = tile + ::TileDiffXY(width - 1, height - 1); return AIObject::DoCommand(tile, TREE_INVALID, end_tile, CMD_PLANT_TREE); } /* static */ bool AITile::IsWithinTownInfluence(TileIndex tile, TownID town_id) { return AITown::IsWithinTownInfluence(town_id, tile); } /* static */ TownID AITile::GetClosestTown(TileIndex tile) { if (!::IsValidTile(tile)) return INVALID_TOWN; return ::ClosestTownFromTile(tile, UINT_MAX)->index; } /* static */ Money AITile::GetBuildCost(BuildType build_type) { switch (build_type) { case BT_FOUNDATION: return ::GetPrice(PR_BUILD_FOUNDATION, 1, NULL); case BT_TERRAFORM: return ::GetPrice(PR_TERRAFORM, 1, NULL); case BT_BUILD_TREES: return ::GetPrice(PR_BUILD_TREES, 1, NULL); case BT_CLEAR_GRASS: return ::GetPrice(PR_CLEAR_GRASS, 1, NULL); case BT_CLEAR_ROUGH: return ::GetPrice(PR_CLEAR_ROUGH, 1, NULL); case BT_CLEAR_ROCKY: return ::GetPrice(PR_CLEAR_ROCKS, 1, NULL); case BT_CLEAR_FIELDS: return ::GetPrice(PR_CLEAR_FIELDS, 1, NULL); case BT_CLEAR_HOUSE: return ::GetPrice(PR_CLEAR_HOUSE, 1, NULL); default: return -1; } }