/* * 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 . */ /** @file station_cmd.cpp Handling of station tiles. */ #include "stdafx.h" #include "aircraft.h" #include "bridge_map.h" #include "viewport_func.h" #include "viewport_kdtree.h" #include "command_func.h" #include "town.h" #include "news_func.h" #include "train.h" #include "ship.h" #include "roadveh.h" #include "industry.h" #include "newgrf_cargo.h" #include "newgrf_debug.h" #include "newgrf_station.h" #include "newgrf_canal.h" /* For the buoy */ #include "pathfinder/yapf/yapf_cache.h" #include "road_internal.h" /* For drawing catenary/checking road removal */ #include "autoslope.h" #include "water.h" #include "strings_func.h" #include "clear_func.h" #include "date_func.h" #include "vehicle_func.h" #include "string_func.h" #include "animated_tile_func.h" #include "elrail_func.h" #include "station_base.h" #include "station_func.h" #include "station_kdtree.h" #include "roadstop_base.h" #include "newgrf_railtype.h" #include "newgrf_roadtype.h" #include "waypoint_base.h" #include "waypoint_func.h" #include "pbs.h" #include "debug.h" #include "core/random_func.hpp" #include "company_base.h" #include "table/airporttile_ids.h" #include "newgrf_airporttiles.h" #include "order_backup.h" #include "newgrf_house.h" #include "company_gui.h" #include "linkgraph/linkgraph_base.h" #include "linkgraph/refresh.h" #include "widgets/station_widget.h" #include "tunnelbridge_map.h" #include "station_cmd.h" #include "waypoint_cmd.h" #include "landscape_cmd.h" #include "rail_cmd.h" #include "table/strings.h" #include "safeguards.h" /** * Static instance of FlowStat::SharesMap. * Note: This instance is created on task start. * Lazy creation on first usage results in a data race between the CDist threads. */ /* static */ const FlowStat::SharesMap FlowStat::empty_sharesmap; /** * Check whether the given tile is a hangar. * @param t the tile to of whether it is a hangar. * @pre IsTileType(t, MP_STATION) * @return true if and only if the tile is a hangar. */ bool IsHangar(TileIndex t) { assert(IsTileType(t, MP_STATION)); /* If the tile isn't an airport there's no chance it's a hangar. */ if (!IsAirport(t)) return false; const Station *st = Station::GetByTile(t); const AirportSpec *as = st->airport.GetSpec(); for (uint i = 0; i < as->nof_depots; i++) { if (st->airport.GetHangarTile(i) == t) return true; } return false; } /** * Look for a station owned by the given company around the given tile area. * @param ta the area to search over * @param closest_station the closest owned station found so far * @param company the company whose stations to look for * @param st to 'return' the found station * @return Succeeded command (if zero or one station found) or failed command (for two or more stations found). */ template CommandCost GetStationAround(TileArea ta, StationID closest_station, CompanyID company, T **st) { ta.Expand(1); /* check around to see if there are any stations there owned by the company */ for (TileIndex tile_cur : ta) { if (IsTileType(tile_cur, MP_STATION)) { StationID t = GetStationIndex(tile_cur); if (!T::IsValidID(t) || Station::Get(t)->owner != company) continue; if (closest_station == INVALID_STATION) { closest_station = t; } else if (closest_station != t) { return_cmd_error(STR_ERROR_ADJOINS_MORE_THAN_ONE_EXISTING); } } } *st = (closest_station == INVALID_STATION) ? nullptr : T::Get(closest_station); return CommandCost(); } /** * Function to check whether the given tile matches some criterion. * @param tile the tile to check * @return true if it matches, false otherwise */ typedef bool (*CMSAMatcher)(TileIndex tile); /** * Counts the numbers of tiles matching a specific type in the area around * @param tile the center tile of the 'count area' * @param cmp the comparator/matcher (@see CMSAMatcher) * @return the number of matching tiles around */ static int CountMapSquareAround(TileIndex tile, CMSAMatcher cmp) { int num = 0; for (int dx = -3; dx <= 3; dx++) { for (int dy = -3; dy <= 3; dy++) { TileIndex t = TileAddWrap(tile, dx, dy); if (t != INVALID_TILE && cmp(t)) num++; } } return num; } /** * Check whether the tile is a mine. * @param tile the tile to investigate. * @return true if and only if the tile is a mine */ static bool CMSAMine(TileIndex tile) { /* No industry */ if (!IsTileType(tile, MP_INDUSTRY)) return false; const Industry *ind = Industry::GetByTile(tile); /* No extractive industry */ if ((GetIndustrySpec(ind->type)->life_type & INDUSTRYLIFE_EXTRACTIVE) == 0) return false; for (uint i = 0; i < lengthof(ind->produced_cargo); i++) { /* The industry extracts something non-liquid, i.e. no oil or plastic, so it is a mine. * Also the production of passengers and mail is ignored. */ if (ind->produced_cargo[i] != CT_INVALID && (CargoSpec::Get(ind->produced_cargo[i])->classes & (CC_LIQUID | CC_PASSENGERS | CC_MAIL)) == 0) { return true; } } return false; } /** * Check whether the tile is water. * @param tile the tile to investigate. * @return true if and only if the tile is a water tile */ static bool CMSAWater(TileIndex tile) { return IsTileType(tile, MP_WATER) && IsWater(tile); } /** * Check whether the tile is a tree. * @param tile the tile to investigate. * @return true if and only if the tile is a tree tile */ static bool CMSATree(TileIndex tile) { return IsTileType(tile, MP_TREES); } #define M(x) ((x) - STR_SV_STNAME) enum StationNaming { STATIONNAMING_RAIL, STATIONNAMING_ROAD, STATIONNAMING_AIRPORT, STATIONNAMING_OILRIG, STATIONNAMING_DOCK, STATIONNAMING_HELIPORT, }; /** Information to handle station action 0 property 24 correctly */ struct StationNameInformation { uint32 free_names; ///< Current bitset of free names (we can remove names). bool *indtypes; ///< Array of bools telling whether an industry type has been found. }; /** * Find a station action 0 property 24 station name, or reduce the * free_names if needed. * @param tile the tile to search * @param user_data the StationNameInformation to base the search on * @return true if the tile contains an industry that has not given * its name to one of the other stations in town. */ static bool FindNearIndustryName(TileIndex tile, void *user_data) { /* All already found industry types */ StationNameInformation *sni = (StationNameInformation*)user_data; if (!IsTileType(tile, MP_INDUSTRY)) return false; /* If the station name is undefined it means that it doesn't name a station */ IndustryType indtype = GetIndustryType(tile); if (GetIndustrySpec(indtype)->station_name == STR_UNDEFINED) return false; /* In all cases if an industry that provides a name is found two of * the standard names will be disabled. */ sni->free_names &= ~(1 << M(STR_SV_STNAME_OILFIELD) | 1 << M(STR_SV_STNAME_MINES)); return !sni->indtypes[indtype]; } static StringID GenerateStationName(Station *st, TileIndex tile, StationNaming name_class) { static const uint32 _gen_station_name_bits[] = { 0, // STATIONNAMING_RAIL 0, // STATIONNAMING_ROAD 1U << M(STR_SV_STNAME_AIRPORT), // STATIONNAMING_AIRPORT 1U << M(STR_SV_STNAME_OILFIELD), // STATIONNAMING_OILRIG 1U << M(STR_SV_STNAME_DOCKS), // STATIONNAMING_DOCK 1U << M(STR_SV_STNAME_HELIPORT), // STATIONNAMING_HELIPORT }; const Town *t = st->town; uint32 free_names = UINT32_MAX; bool indtypes[NUM_INDUSTRYTYPES]; memset(indtypes, 0, sizeof(indtypes)); for (const Station *s : Station::Iterate()) { if (s != st && s->town == t) { if (s->indtype != IT_INVALID) { indtypes[s->indtype] = true; StringID name = GetIndustrySpec(s->indtype)->station_name; if (name != STR_UNDEFINED) { /* Filter for other industrytypes with the same name */ for (IndustryType it = 0; it < NUM_INDUSTRYTYPES; it++) { const IndustrySpec *indsp = GetIndustrySpec(it); if (indsp->enabled && indsp->station_name == name) indtypes[it] = true; } } continue; } uint str = M(s->string_id); if (str <= 0x20) { if (str == M(STR_SV_STNAME_FOREST)) { str = M(STR_SV_STNAME_WOODS); } ClrBit(free_names, str); } } } TileIndex indtile = tile; StationNameInformation sni = { free_names, indtypes }; if (CircularTileSearch(&indtile, 7, FindNearIndustryName, &sni)) { /* An industry has been found nearby */ IndustryType indtype = GetIndustryType(indtile); const IndustrySpec *indsp = GetIndustrySpec(indtype); /* STR_NULL means it only disables oil rig/mines */ if (indsp->station_name != STR_NULL) { st->indtype = indtype; return STR_SV_STNAME_FALLBACK; } } /* Oil rigs/mines name could be marked not free by looking for a near by industry. */ free_names = sni.free_names; /* check default names */ uint32 tmp = free_names & _gen_station_name_bits[name_class]; if (tmp != 0) return STR_SV_STNAME + FindFirstBit(tmp); /* check mine? */ if (HasBit(free_names, M(STR_SV_STNAME_MINES))) { if (CountMapSquareAround(tile, CMSAMine) >= 2) { return STR_SV_STNAME_MINES; } } /* check close enough to town to get central as name? */ if (DistanceMax(tile, t->xy) < 8) { if (HasBit(free_names, M(STR_SV_STNAME))) return STR_SV_STNAME; if (HasBit(free_names, M(STR_SV_STNAME_CENTRAL))) return STR_SV_STNAME_CENTRAL; } /* Check lakeside */ if (HasBit(free_names, M(STR_SV_STNAME_LAKESIDE)) && DistanceFromEdge(tile) < 20 && CountMapSquareAround(tile, CMSAWater) >= 5) { return STR_SV_STNAME_LAKESIDE; } /* Check woods */ if (HasBit(free_names, M(STR_SV_STNAME_WOODS)) && ( CountMapSquareAround(tile, CMSATree) >= 8 || CountMapSquareAround(tile, IsTileForestIndustry) >= 2) ) { return _settings_game.game_creation.landscape == LT_TROPIC ? STR_SV_STNAME_FOREST : STR_SV_STNAME_WOODS; } /* check elevation compared to town */ int z = GetTileZ(tile); int z2 = GetTileZ(t->xy); if (z < z2) { if (HasBit(free_names, M(STR_SV_STNAME_VALLEY))) return STR_SV_STNAME_VALLEY; } else if (z > z2) { if (HasBit(free_names, M(STR_SV_STNAME_HEIGHTS))) return STR_SV_STNAME_HEIGHTS; } /* check direction compared to town */ static const int8 _direction_and_table[] = { ~( (1 << M(STR_SV_STNAME_WEST)) | (1 << M(STR_SV_STNAME_EAST)) | (1 << M(STR_SV_STNAME_NORTH)) ), ~( (1 << M(STR_SV_STNAME_SOUTH)) | (1 << M(STR_SV_STNAME_WEST)) | (1 << M(STR_SV_STNAME_NORTH)) ), ~( (1 << M(STR_SV_STNAME_SOUTH)) | (1 << M(STR_SV_STNAME_EAST)) | (1 << M(STR_SV_STNAME_NORTH)) ), ~( (1 << M(STR_SV_STNAME_SOUTH)) | (1 << M(STR_SV_STNAME_WEST)) | (1 << M(STR_SV_STNAME_EAST)) ), }; free_names &= _direction_and_table[ (TileX(tile) < TileX(t->xy)) + (TileY(tile) < TileY(t->xy)) * 2]; tmp = free_names & ((1 << 1) | (1 << 2) | (1 << 3) | (1 << 4) | (1 << 6) | (1 << 7) | (1 << 12) | (1 << 26) | (1 << 27) | (1 << 28) | (1 << 29) | (1 << 30)); return (tmp == 0) ? STR_SV_STNAME_FALLBACK : (STR_SV_STNAME + FindFirstBit(tmp)); } #undef M /** * Find the closest deleted station of the current company * @param tile the tile to search from. * @return the closest station or nullptr if too far. */ static Station *GetClosestDeletedStation(TileIndex tile) { uint threshold = 8; Station *best_station = nullptr; ForAllStationsRadius(tile, threshold, [&](Station *st) { if (!st->IsInUse() && st->owner == _current_company) { uint cur_dist = DistanceManhattan(tile, st->xy); if (cur_dist < threshold) { threshold = cur_dist; best_station = st; } else if (cur_dist == threshold && best_station != nullptr) { /* In case of a tie, lowest station ID wins */ if (st->index < best_station->index) best_station = st; } } }); return best_station; } void Station::GetTileArea(TileArea *ta, StationType type) const { switch (type) { case STATION_RAIL: *ta = this->train_station; return; case STATION_AIRPORT: *ta = this->airport; return; case STATION_TRUCK: *ta = this->truck_station; return; case STATION_BUS: *ta = this->bus_station; return; case STATION_DOCK: case STATION_OILRIG: *ta = this->docking_station; return; default: NOT_REACHED(); } } /** * Update the virtual coords needed to draw the station sign. */ void Station::UpdateVirtCoord() { Point pt = RemapCoords2(TileX(this->xy) * TILE_SIZE, TileY(this->xy) * TILE_SIZE); pt.y -= 32 * ZOOM_LVL_BASE; if ((this->facilities & FACIL_AIRPORT) && this->airport.type == AT_OILRIG) pt.y -= 16 * ZOOM_LVL_BASE; if (this->sign.kdtree_valid) _viewport_sign_kdtree.Remove(ViewportSignKdtreeItem::MakeStation(this->index)); SetDParam(0, this->index); SetDParam(1, this->facilities); this->sign.UpdatePosition(pt.x, pt.y, STR_VIEWPORT_STATION, STR_VIEWPORT_STATION_TINY); _viewport_sign_kdtree.Insert(ViewportSignKdtreeItem::MakeStation(this->index)); SetWindowDirty(WC_STATION_VIEW, this->index); } /** * Move the station main coordinate somewhere else. * @param new_xy new tile location of the sign */ void Station::MoveSign(TileIndex new_xy) { if (this->xy == new_xy) return; _station_kdtree.Remove(this->index); this->BaseStation::MoveSign(new_xy); _station_kdtree.Insert(this->index); } /** Update the virtual coords needed to draw the station sign for all stations. */ void UpdateAllStationVirtCoords() { for (BaseStation *st : BaseStation::Iterate()) { st->UpdateVirtCoord(); } } void BaseStation::FillCachedName() const { char buf[MAX_LENGTH_STATION_NAME_CHARS * MAX_CHAR_LENGTH]; int64 args_array[] = { this->index }; StringParameters tmp_params(args_array); char *end = GetStringWithArgs(buf, Waypoint::IsExpected(this) ? STR_WAYPOINT_NAME : STR_STATION_NAME, &tmp_params, lastof(buf)); this->cached_name.assign(buf, end); } void ClearAllStationCachedNames() { for (BaseStation *st : BaseStation::Iterate()) { st->cached_name.clear(); } } /** * Get a mask of the cargo types that the station accepts. * @param st Station to query * @return the expected mask */ static CargoTypes GetAcceptanceMask(const Station *st) { CargoTypes mask = 0; for (CargoID i = 0; i < NUM_CARGO; i++) { if (HasBit(st->goods[i].status, GoodsEntry::GES_ACCEPTANCE)) SetBit(mask, i); } return mask; } /** * Items contains the two cargo names that are to be accepted or rejected. * msg is the string id of the message to display. */ static void ShowRejectOrAcceptNews(const Station *st, uint num_items, CargoID *cargo, StringID msg) { for (uint i = 0; i < num_items; i++) { SetDParam(i + 1, CargoSpec::Get(cargo[i])->name); } SetDParam(0, st->index); AddNewsItem(msg, NT_ACCEPTANCE, NF_INCOLOUR | NF_SMALL, NR_STATION, st->index); } /** * Get the cargo types being produced around the tile (in a rectangle). * @param north_tile Northern most tile of area * @param w X extent of the area * @param h Y extent of the area * @param rad Search radius in addition to the given area */ CargoArray GetProductionAroundTiles(TileIndex north_tile, int w, int h, int rad) { CargoArray produced; std::set industries; TileArea ta = TileArea(north_tile, w, h).Expand(rad); /* Loop over all tiles to get the produced cargo of * everything except industries */ for (TileIndex tile : ta) { if (IsTileType(tile, MP_INDUSTRY)) industries.insert(GetIndustryIndex(tile)); AddProducedCargo(tile, produced); } /* Loop over the seen industries. They produce cargo for * anything that is within 'rad' of any one of their tiles. */ for (IndustryID industry : industries) { const Industry *i = Industry::Get(industry); /* Skip industry with neutral station */ if (i->neutral_station != nullptr && !_settings_game.station.serve_neutral_industries) continue; for (uint j = 0; j < lengthof(i->produced_cargo); j++) { CargoID cargo = i->produced_cargo[j]; if (cargo != CT_INVALID) produced[cargo]++; } } return produced; } /** * Get the acceptance of cargoes around the tile in 1/8. * @param center_tile Center of the search area * @param w X extent of area * @param h Y extent of area * @param rad Search radius in addition to given area * @param always_accepted bitmask of cargo accepted by houses and headquarters; can be nullptr * @param ind Industry associated with neutral station (e.g. oil rig) or nullptr */ CargoArray GetAcceptanceAroundTiles(TileIndex center_tile, int w, int h, int rad, CargoTypes *always_accepted) { CargoArray acceptance; if (always_accepted != nullptr) *always_accepted = 0; TileArea ta = TileArea(center_tile, w, h).Expand(rad); for (TileIndex tile : ta) { /* Ignore industry if it has a neutral station. */ if (!_settings_game.station.serve_neutral_industries && IsTileType(tile, MP_INDUSTRY) && Industry::GetByTile(tile)->neutral_station != nullptr) continue; AddAcceptedCargo(tile, acceptance, always_accepted); } return acceptance; } /** * Get the acceptance of cargoes around the station in. * @param st Station to get acceptance of. * @param always_accepted bitmask of cargo accepted by houses and headquarters; can be nullptr */ static CargoArray GetAcceptanceAroundStation(const Station *st, CargoTypes *always_accepted) { CargoArray acceptance; if (always_accepted != nullptr) *always_accepted = 0; BitmapTileIterator it(st->catchment_tiles); for (TileIndex tile = it; tile != INVALID_TILE; tile = ++it) { AddAcceptedCargo(tile, acceptance, always_accepted); } return acceptance; } /** * Update the acceptance for a station. * @param st Station to update * @param show_msg controls whether to display a message that acceptance was changed. */ void UpdateStationAcceptance(Station *st, bool show_msg) { /* old accepted goods types */ CargoTypes old_acc = GetAcceptanceMask(st); /* And retrieve the acceptance. */ CargoArray acceptance; if (!st->rect.IsEmpty()) { acceptance = GetAcceptanceAroundStation(st, &st->always_accepted); } /* Adjust in case our station only accepts fewer kinds of goods */ for (CargoID i = 0; i < NUM_CARGO; i++) { uint amt = acceptance[i]; /* Make sure the station can accept the goods type. */ bool is_passengers = IsCargoInClass(i, CC_PASSENGERS); if ((!is_passengers && !(st->facilities & ~FACIL_BUS_STOP)) || (is_passengers && !(st->facilities & ~FACIL_TRUCK_STOP))) { amt = 0; } GoodsEntry &ge = st->goods[i]; SB(ge.status, GoodsEntry::GES_ACCEPTANCE, 1, amt >= 8); if (LinkGraph::IsValidID(ge.link_graph)) { (*LinkGraph::Get(ge.link_graph))[ge.node].SetDemand(amt / 8); } } /* Only show a message in case the acceptance was actually changed. */ CargoTypes new_acc = GetAcceptanceMask(st); if (old_acc == new_acc) return; /* show a message to report that the acceptance was changed? */ if (show_msg && st->owner == _local_company && st->IsInUse()) { /* List of accept and reject strings for different number of * cargo types */ static const StringID accept_msg[] = { STR_NEWS_STATION_NOW_ACCEPTS_CARGO, STR_NEWS_STATION_NOW_ACCEPTS_CARGO_AND_CARGO, }; static const StringID reject_msg[] = { STR_NEWS_STATION_NO_LONGER_ACCEPTS_CARGO, STR_NEWS_STATION_NO_LONGER_ACCEPTS_CARGO_OR_CARGO, }; /* Array of accepted and rejected cargo types */ CargoID accepts[2] = { CT_INVALID, CT_INVALID }; CargoID rejects[2] = { CT_INVALID, CT_INVALID }; uint num_acc = 0; uint num_rej = 0; /* Test each cargo type to see if its acceptance has changed */ for (CargoID i = 0; i < NUM_CARGO; i++) { if (HasBit(new_acc, i)) { if (!HasBit(old_acc, i) && num_acc < lengthof(accepts)) { /* New cargo is accepted */ accepts[num_acc++] = i; } } else { if (HasBit(old_acc, i) && num_rej < lengthof(rejects)) { /* Old cargo is no longer accepted */ rejects[num_rej++] = i; } } } /* Show news message if there are any changes */ if (num_acc > 0) ShowRejectOrAcceptNews(st, num_acc, accepts, accept_msg[num_acc - 1]); if (num_rej > 0) ShowRejectOrAcceptNews(st, num_rej, rejects, reject_msg[num_rej - 1]); } /* redraw the station view since acceptance changed */ SetWindowWidgetDirty(WC_STATION_VIEW, st->index, WID_SV_ACCEPT_RATING_LIST); } static void UpdateStationSignCoord(BaseStation *st) { const StationRect *r = &st->rect; if (r->IsEmpty()) return; // no tiles belong to this station /* clamp sign coord to be inside the station rect */ TileIndex new_xy = TileXY(ClampU(TileX(st->xy), r->left, r->right), ClampU(TileY(st->xy), r->top, r->bottom)); st->MoveSign(new_xy); if (!Station::IsExpected(st)) return; Station *full_station = Station::From(st); for (CargoID c = 0; c < NUM_CARGO; ++c) { LinkGraphID lg = full_station->goods[c].link_graph; if (!LinkGraph::IsValidID(lg)) continue; (*LinkGraph::Get(lg))[full_station->goods[c].node].UpdateLocation(st->xy); } } /** * Common part of building various station parts and possibly attaching them to an existing one. * @param[in,out] st Station to attach to * @param flags Command flags * @param reuse Whether to try to reuse a deleted station (gray sign) if possible * @param area Area occupied by the new part * @param name_class Station naming class to use to generate the new station's name * @return Command error that occurred, if any */ static CommandCost BuildStationPart(Station **st, DoCommandFlag flags, bool reuse, TileArea area, StationNaming name_class) { /* Find a deleted station close to us */ if (*st == nullptr && reuse) *st = GetClosestDeletedStation(area.tile); if (*st != nullptr) { if ((*st)->owner != _current_company) { return_cmd_error(CMD_ERROR); } CommandCost ret = (*st)->rect.BeforeAddRect(area.tile, area.w, area.h, StationRect::ADD_TEST); if (ret.Failed()) return ret; } else { /* allocate and initialize new station */ if (!Station::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_STATIONS_LOADING); if (flags & DC_EXEC) { *st = new Station(area.tile); _station_kdtree.Insert((*st)->index); (*st)->town = ClosestTownFromTile(area.tile, UINT_MAX); (*st)->string_id = GenerateStationName(*st, area.tile, name_class); if (Company::IsValidID(_current_company)) { SetBit((*st)->town->have_ratings, _current_company); } } } return CommandCost(); } /** * This is called right after a station was deleted. * It checks if the whole station is free of substations, and if so, the station will be * deleted after a little while. * @param st Station */ static void DeleteStationIfEmpty(BaseStation *st) { if (!st->IsInUse()) { st->delete_ctr = 0; InvalidateWindowData(WC_STATION_LIST, st->owner, 0); } /* station remains but it probably lost some parts - station sign should stay in the station boundaries */ UpdateStationSignCoord(st); } /** * After adding/removing tiles to station, update some station-related stuff. * @param adding True if adding tiles, false if removing them. * @param type StationType being modified. */ void Station::AfterStationTileSetChange(bool adding, StationType type) { this->UpdateVirtCoord(); DirtyCompanyInfrastructureWindows(this->owner); if (adding) { this->RecomputeCatchment(); MarkCatchmentTilesDirty(); InvalidateWindowData(WC_STATION_LIST, this->owner, 0); } else { MarkCatchmentTilesDirty(); } switch (type) { case STATION_RAIL: SetWindowWidgetDirty(WC_STATION_VIEW, this->index, WID_SV_TRAINS); break; case STATION_AIRPORT: break; case STATION_TRUCK: case STATION_BUS: SetWindowWidgetDirty(WC_STATION_VIEW, this->index, WID_SV_ROADVEHS); break; case STATION_DOCK: SetWindowWidgetDirty(WC_STATION_VIEW, this->index, WID_SV_SHIPS); break; default: NOT_REACHED(); } if (adding) { UpdateStationAcceptance(this, false); InvalidateWindowData(WC_SELECT_STATION, 0, 0); } else { DeleteStationIfEmpty(this); this->RecomputeCatchment(); } } CommandCost ClearTile_Station(TileIndex tile, DoCommandFlag flags); /** * Checks if the given tile is buildable, flat and has a certain height. * @param tile TileIndex to check. * @param invalid_dirs Prohibited directions for slopes (set of #DiagDirection). * @param allowed_z Height allowed for the tile. If allowed_z is negative, it will be set to the height of this tile. * @param allow_steep Whether steep slopes are allowed. * @param check_bridge Check for the existence of a bridge. * @return The cost in case of success, or an error code if it failed. */ CommandCost CheckBuildableTile(TileIndex tile, uint invalid_dirs, int &allowed_z, bool allow_steep, bool check_bridge = true) { if (check_bridge && IsBridgeAbove(tile)) { return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST); } CommandCost ret = EnsureNoVehicleOnGround(tile); if (ret.Failed()) return ret; int z; Slope tileh = GetTileSlope(tile, &z); /* Prohibit building if * 1) The tile is "steep" (i.e. stretches two height levels). * 2) The tile is non-flat and the build_on_slopes switch is disabled. */ if ((!allow_steep && IsSteepSlope(tileh)) || ((!_settings_game.construction.build_on_slopes) && tileh != SLOPE_FLAT)) { return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED); } CommandCost cost(EXPENSES_CONSTRUCTION); int flat_z = z + GetSlopeMaxZ(tileh); if (tileh != SLOPE_FLAT) { /* Forbid building if the tile faces a slope in a invalid direction. */ for (DiagDirection dir = DIAGDIR_BEGIN; dir != DIAGDIR_END; dir++) { if (HasBit(invalid_dirs, dir) && !CanBuildDepotByTileh(dir, tileh)) { return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED); } } cost.AddCost(_price[PR_BUILD_FOUNDATION]); } /* The level of this tile must be equal to allowed_z. */ if (allowed_z < 0) { /* First tile. */ allowed_z = flat_z; } else if (allowed_z != flat_z) { return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED); } return cost; } /** * Checks if an airport can be built at the given location and clear the area. * @param tile_iter Airport tile iterator. * @param flags Operation to perform. * @return The cost in case of success, or an error code if it failed. */ static CommandCost CheckFlatLandAirport(AirportTileTableIterator tile_iter, DoCommandFlag flags) { CommandCost cost(EXPENSES_CONSTRUCTION); int allowed_z = -1; for (; tile_iter != INVALID_TILE; ++tile_iter) { CommandCost ret = CheckBuildableTile(tile_iter, 0, allowed_z, true); if (ret.Failed()) return ret; cost.AddCost(ret); ret = Command::Do(flags, tile_iter); if (ret.Failed()) return ret; cost.AddCost(ret); } return cost; } /** * Checks if a rail station can be built at the given area. * @param tile_area Area to check. * @param flags Operation to perform. * @param axis Rail station axis. * @param station StationID to be queried and returned if available. * @param rt The rail type to check for (overbuilding rail stations over rail). * @param affected_vehicles List of trains with PBS reservations on the tiles * @param spec_class Station class. * @param spec_index Index into the station class. * @param plat_len Platform length. * @param numtracks Number of platforms. * @return The cost in case of success, or an error code if it failed. */ static CommandCost CheckFlatLandRailStation(TileArea tile_area, DoCommandFlag flags, Axis axis, StationID *station, RailType rt, std::vector &affected_vehicles, StationClassID spec_class, byte spec_index, byte plat_len, byte numtracks) { CommandCost cost(EXPENSES_CONSTRUCTION); int allowed_z = -1; uint invalid_dirs = 5 << axis; const StationSpec *statspec = StationClass::Get(spec_class)->GetSpec(spec_index); bool slope_cb = statspec != nullptr && HasBit(statspec->callback_mask, CBM_STATION_SLOPE_CHECK); for (TileIndex tile_cur : tile_area) { CommandCost ret = CheckBuildableTile(tile_cur, invalid_dirs, allowed_z, false); if (ret.Failed()) return ret; cost.AddCost(ret); if (slope_cb) { /* Do slope check if requested. */ ret = PerformStationTileSlopeCheck(tile_area.tile, tile_cur, statspec, axis, plat_len, numtracks); if (ret.Failed()) return ret; } /* if station is set, then we have special handling to allow building on top of already existing stations. * so station points to INVALID_STATION if we can build on any station. * Or it points to a station if we're only allowed to build on exactly that station. */ if (station != nullptr && IsTileType(tile_cur, MP_STATION)) { if (!IsRailStation(tile_cur)) { return ClearTile_Station(tile_cur, DC_AUTO); // get error message } else { StationID st = GetStationIndex(tile_cur); if (*station == INVALID_STATION) { *station = st; } else if (*station != st) { return_cmd_error(STR_ERROR_ADJOINS_MORE_THAN_ONE_EXISTING); } } } else { /* Rail type is only valid when building a railway station; if station to * build isn't a rail station it's INVALID_RAILTYPE. */ if (rt != INVALID_RAILTYPE && IsPlainRailTile(tile_cur) && !HasSignals(tile_cur) && HasPowerOnRail(GetRailType(tile_cur), rt)) { /* Allow overbuilding if the tile: * - has rail, but no signals * - it has exactly one track * - the track is in line with the station * - the current rail type has power on the to-be-built type (e.g. convert normal rail to el rail) */ TrackBits tracks = GetTrackBits(tile_cur); Track track = RemoveFirstTrack(&tracks); Track expected_track = HasBit(invalid_dirs, DIAGDIR_NE) ? TRACK_X : TRACK_Y; if (tracks == TRACK_BIT_NONE && track == expected_track) { /* Check for trains having a reservation for this tile. */ if (HasBit(GetRailReservationTrackBits(tile_cur), track)) { Train *v = GetTrainForReservation(tile_cur, track); if (v != nullptr) { affected_vehicles.push_back(v); } } CommandCost ret = Command::Do(flags, tile_cur, track); if (ret.Failed()) return ret; cost.AddCost(ret); /* With flags & ~DC_EXEC CmdLandscapeClear would fail since the rail still exists */ continue; } } ret = Command::Do(flags, tile_cur); if (ret.Failed()) return ret; cost.AddCost(ret); } } return cost; } /** * Checks if a road stop can be built at the given tile. * @param tile_area Area to check. * @param flags Operation to perform. * @param invalid_dirs Prohibited directions (set of DiagDirections). * @param is_drive_through True if trying to build a drive-through station. * @param is_truck_stop True when building a truck stop, false otherwise. * @param axis Axis of a drive-through road stop. * @param station StationID to be queried and returned if available. * @param rt Road type to build. * @return The cost in case of success, or an error code if it failed. */ static CommandCost CheckFlatLandRoadStop(TileArea tile_area, DoCommandFlag flags, uint invalid_dirs, bool is_drive_through, bool is_truck_stop, Axis axis, StationID *station, RoadType rt) { CommandCost cost(EXPENSES_CONSTRUCTION); int allowed_z = -1; for (TileIndex cur_tile : tile_area) { CommandCost ret = CheckBuildableTile(cur_tile, invalid_dirs, allowed_z, !is_drive_through); if (ret.Failed()) return ret; cost.AddCost(ret); /* If station is set, then we have special handling to allow building on top of already existing stations. * Station points to INVALID_STATION if we can build on any station. * Or it points to a station if we're only allowed to build on exactly that station. */ if (station != nullptr && IsTileType(cur_tile, MP_STATION)) { if (!IsRoadStop(cur_tile)) { return ClearTile_Station(cur_tile, DC_AUTO); // Get error message. } else { if (is_truck_stop != IsTruckStop(cur_tile) || is_drive_through != IsDriveThroughStopTile(cur_tile)) { return ClearTile_Station(cur_tile, DC_AUTO); // Get error message. } /* Drive-through station in the wrong direction. */ if (is_drive_through && IsDriveThroughStopTile(cur_tile) && DiagDirToAxis(GetRoadStopDir(cur_tile)) != axis){ return_cmd_error(STR_ERROR_DRIVE_THROUGH_DIRECTION); } StationID st = GetStationIndex(cur_tile); if (*station == INVALID_STATION) { *station = st; } else if (*station != st) { return_cmd_error(STR_ERROR_ADJOINS_MORE_THAN_ONE_EXISTING); } } } else { bool build_over_road = is_drive_through && IsNormalRoadTile(cur_tile); /* Road bits in the wrong direction. */ RoadBits rb = IsNormalRoadTile(cur_tile) ? GetAllRoadBits(cur_tile) : ROAD_NONE; if (build_over_road && (rb & (axis == AXIS_X ? ROAD_Y : ROAD_X)) != 0) { /* Someone was pedantic and *NEEDED* three fracking different error messages. */ switch (CountBits(rb)) { case 1: return_cmd_error(STR_ERROR_DRIVE_THROUGH_DIRECTION); case 2: if (rb == ROAD_X || rb == ROAD_Y) return_cmd_error(STR_ERROR_DRIVE_THROUGH_DIRECTION); return_cmd_error(STR_ERROR_DRIVE_THROUGH_CORNER); default: // 3 or 4 return_cmd_error(STR_ERROR_DRIVE_THROUGH_JUNCTION); } } if (build_over_road) { /* There is a road, check if we can build road+tram stop over it. */ RoadType road_rt = GetRoadType(cur_tile, RTT_ROAD); if (road_rt != INVALID_ROADTYPE) { Owner road_owner = GetRoadOwner(cur_tile, RTT_ROAD); if (road_owner == OWNER_TOWN) { if (!_settings_game.construction.road_stop_on_town_road) return_cmd_error(STR_ERROR_DRIVE_THROUGH_ON_TOWN_ROAD); } else if (!_settings_game.construction.road_stop_on_competitor_road && road_owner != OWNER_NONE) { CommandCost ret = CheckOwnership(road_owner); if (ret.Failed()) return ret; } uint num_pieces = CountBits(GetRoadBits(cur_tile, RTT_ROAD)); if (RoadTypeIsRoad(rt) && !HasPowerOnRoad(rt, road_rt)) return_cmd_error(STR_ERROR_NO_SUITABLE_ROAD); if (GetDisallowedRoadDirections(cur_tile) != DRD_NONE && road_owner != OWNER_TOWN) { CommandCost ret = CheckOwnership(road_owner); if (ret.Failed()) return ret; } cost.AddCost(RoadBuildCost(road_rt) * (2 - num_pieces)); } else if (RoadTypeIsRoad(rt)) { cost.AddCost(RoadBuildCost(rt) * 2); } /* There is a tram, check if we can build road+tram stop over it. */ RoadType tram_rt = GetRoadType(cur_tile, RTT_TRAM); if (tram_rt != INVALID_ROADTYPE) { Owner tram_owner = GetRoadOwner(cur_tile, RTT_TRAM); if (Company::IsValidID(tram_owner) && (!_settings_game.construction.road_stop_on_competitor_road || /* Disallow breaking end-of-line of someone else * so trams can still reverse on this tile. */ HasExactlyOneBit(GetRoadBits(cur_tile, RTT_TRAM)))) { CommandCost ret = CheckOwnership(tram_owner); if (ret.Failed()) return ret; } uint num_pieces = CountBits(GetRoadBits(cur_tile, RTT_TRAM)); if (RoadTypeIsTram(rt) && !HasPowerOnRoad(rt, tram_rt)) return_cmd_error(STR_ERROR_NO_SUITABLE_ROAD); cost.AddCost(RoadBuildCost(tram_rt) * (2 - num_pieces)); } else if (RoadTypeIsTram(rt)) { cost.AddCost(RoadBuildCost(rt) * 2); } } else { ret = Command::Do(flags, cur_tile); if (ret.Failed()) return ret; cost.AddCost(ret); cost.AddCost(RoadBuildCost(rt) * 2); } } } return cost; } /** * Check whether we can expand the rail part of the given station. * @param st the station to expand * @param new_ta the current (and if all is fine new) tile area of the rail part of the station * @param axis the axis of the newly build rail * @return Succeeded or failed command. */ CommandCost CanExpandRailStation(const BaseStation *st, TileArea &new_ta, Axis axis) { TileArea cur_ta = st->train_station; /* determine new size of train station region.. */ int x = std::min(TileX(cur_ta.tile), TileX(new_ta.tile)); int y = std::min(TileY(cur_ta.tile), TileY(new_ta.tile)); new_ta.w = std::max(TileX(cur_ta.tile) + cur_ta.w, TileX(new_ta.tile) + new_ta.w) - x; new_ta.h = std::max(TileY(cur_ta.tile) + cur_ta.h, TileY(new_ta.tile) + new_ta.h) - y; new_ta.tile = TileXY(x, y); /* make sure the final size is not too big. */ if (new_ta.w > _settings_game.station.station_spread || new_ta.h > _settings_game.station.station_spread) { return_cmd_error(STR_ERROR_STATION_TOO_SPREAD_OUT); } return CommandCost(); } static inline byte *CreateSingle(byte *layout, int n) { int i = n; do *layout++ = 0; while (--i); layout[((n - 1) >> 1) - n] = 2; return layout; } static inline byte *CreateMulti(byte *layout, int n, byte b) { int i = n; do *layout++ = b; while (--i); if (n > 4) { layout[0 - n] = 0; layout[n - 1 - n] = 0; } return layout; } /** * Create the station layout for the given number of tracks and platform length. * @param layout The layout to write to. * @param numtracks The number of tracks to write. * @param plat_len The length of the platforms. * @param statspec The specification of the station to (possibly) get the layout from. */ void GetStationLayout(byte *layout, uint numtracks, uint plat_len, const StationSpec *statspec) { if (statspec != nullptr && statspec->layouts.size() >= plat_len && statspec->layouts[plat_len - 1].size() >= numtracks && !statspec->layouts[plat_len - 1][numtracks - 1].empty()) { /* Custom layout defined, follow it. */ memcpy(layout, statspec->layouts[plat_len - 1][numtracks - 1].data(), plat_len * numtracks); return; } if (plat_len == 1) { CreateSingle(layout, numtracks); } else { if (numtracks & 1) layout = CreateSingle(layout, plat_len); int n = numtracks >> 1; while (--n >= 0) { layout = CreateMulti(layout, plat_len, 4); layout = CreateMulti(layout, plat_len, 6); } } } /** * Find a nearby station that joins this station. * @tparam T the class to find a station for * @tparam error_message the error message when building a station on top of others * @param existing_station an existing station we build over * @param station_to_join the station to join to * @param adjacent whether adjacent stations are allowed * @param ta the area of the newly build station * @param st 'return' pointer for the found station * @return command cost with the error or 'okay' */ template CommandCost FindJoiningBaseStation(StationID existing_station, StationID station_to_join, bool adjacent, TileArea ta, T **st) { assert(*st == nullptr); bool check_surrounding = true; if (_settings_game.station.adjacent_stations) { if (existing_station != INVALID_STATION) { if (adjacent && existing_station != station_to_join) { /* You can't build an adjacent station over the top of one that * already exists. */ return_cmd_error(error_message); } else { /* Extend the current station, and don't check whether it will * be near any other stations. */ *st = T::GetIfValid(existing_station); check_surrounding = (*st == nullptr); } } else { /* There's no station here. Don't check the tiles surrounding this * one if the company wanted to build an adjacent station. */ if (adjacent) check_surrounding = false; } } if (check_surrounding) { /* Make sure there is no more than one other station around us that is owned by us. */ CommandCost ret = GetStationAround(ta, existing_station, _current_company, st); if (ret.Failed()) return ret; } /* Distant join */ if (*st == nullptr && station_to_join != INVALID_STATION) *st = T::GetIfValid(station_to_join); return CommandCost(); } /** * Find a nearby station that joins this station. * @param existing_station an existing station we build over * @param station_to_join the station to join to * @param adjacent whether adjacent stations are allowed * @param ta the area of the newly build station * @param st 'return' pointer for the found station * @return command cost with the error or 'okay' */ static CommandCost FindJoiningStation(StationID existing_station, StationID station_to_join, bool adjacent, TileArea ta, Station **st) { return FindJoiningBaseStation(existing_station, station_to_join, adjacent, ta, st); } /** * Find a nearby waypoint that joins this waypoint. * @param existing_waypoint an existing waypoint we build over * @param waypoint_to_join the waypoint to join to * @param adjacent whether adjacent waypoints are allowed * @param ta the area of the newly build waypoint * @param wp 'return' pointer for the found waypoint * @return command cost with the error or 'okay' */ CommandCost FindJoiningWaypoint(StationID existing_waypoint, StationID waypoint_to_join, bool adjacent, TileArea ta, Waypoint **wp) { return FindJoiningBaseStation(existing_waypoint, waypoint_to_join, adjacent, ta, wp); } /** * Clear platform reservation during station building/removing. * @param v vehicle which holds reservation */ static void FreeTrainReservation(Train *v) { FreeTrainTrackReservation(v); if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), false); v = v->Last(); if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(ReverseTrackdir(v->GetVehicleTrackdir())), false); } /** * Restore platform reservation during station building/removing. * @param v vehicle which held reservation */ static void RestoreTrainReservation(Train *v) { if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true); TryPathReserve(v, true, true); v = v->Last(); if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(ReverseTrackdir(v->GetVehicleTrackdir())), true); } /** * Build rail station * @param flags operation to perform * @param tile_org northern most position of station dragging/placement * @param rt railtype * @param axis orientation (Axis) * @param numtracks number of tracks * @param plat_len platform length * @param spec_class custom station class * @param spec_index custom station id * @param station_to_join station ID to join (NEW_STATION if build new one) * @param adjacent allow stations directly adjacent to other stations. * @return the cost of this operation or an error */ CommandCost CmdBuildRailStation(DoCommandFlag flags, TileIndex tile_org, RailType rt, Axis axis, byte numtracks, byte plat_len, StationClassID spec_class, byte spec_index, StationID station_to_join, bool adjacent) { /* Does the authority allow this? */ CommandCost ret = CheckIfAuthorityAllowsNewStation(tile_org, flags); if (ret.Failed()) return ret; if (!ValParamRailtype(rt) || !IsValidAxis(axis)) return CMD_ERROR; /* Check if the given station class is valid */ if ((uint)spec_class >= StationClass::GetClassCount() || spec_class == STAT_CLASS_WAYP) return CMD_ERROR; if (spec_index >= StationClass::Get(spec_class)->GetSpecCount()) return CMD_ERROR; if (plat_len == 0 || numtracks == 0) return CMD_ERROR; int w_org, h_org; if (axis == AXIS_X) { w_org = plat_len; h_org = numtracks; } else { h_org = plat_len; w_org = numtracks; } bool reuse = (station_to_join != NEW_STATION); if (!reuse) station_to_join = INVALID_STATION; bool distant_join = (station_to_join != INVALID_STATION); if (distant_join && (!_settings_game.station.distant_join_stations || !Station::IsValidID(station_to_join))) return CMD_ERROR; if (h_org > _settings_game.station.station_spread || w_org > _settings_game.station.station_spread) return CMD_ERROR; /* these values are those that will be stored in train_tile and station_platforms */ TileArea new_location(tile_org, w_org, h_org); /* Make sure the area below consists of clear tiles. (OR tiles belonging to a certain rail station) */ StationID est = INVALID_STATION; std::vector affected_vehicles; /* Clear the land below the station. */ CommandCost cost = CheckFlatLandRailStation(new_location, flags, axis, &est, rt, affected_vehicles, spec_class, spec_index, plat_len, numtracks); if (cost.Failed()) return cost; /* Add construction expenses. */ cost.AddCost((numtracks * _price[PR_BUILD_STATION_RAIL] + _price[PR_BUILD_STATION_RAIL_LENGTH]) * plat_len); cost.AddCost(numtracks * plat_len * RailBuildCost(rt)); Station *st = nullptr; ret = FindJoiningStation(est, station_to_join, adjacent, new_location, &st); if (ret.Failed()) return ret; ret = BuildStationPart(&st, flags, reuse, new_location, STATIONNAMING_RAIL); if (ret.Failed()) return ret; if (st != nullptr && st->train_station.tile != INVALID_TILE) { CommandCost ret = CanExpandRailStation(st, new_location, axis); if (ret.Failed()) return ret; } /* Check if we can allocate a custom stationspec to this station */ const StationSpec *statspec = StationClass::Get(spec_class)->GetSpec(spec_index); int specindex = AllocateSpecToStation(statspec, st, (flags & DC_EXEC) != 0); if (specindex == -1) return_cmd_error(STR_ERROR_TOO_MANY_STATION_SPECS); if (statspec != nullptr) { /* Perform NewStation checks */ /* Check if the station size is permitted */ if (HasBit(statspec->disallowed_platforms, std::min(numtracks - 1, 7)) || HasBit(statspec->disallowed_lengths, std::min(plat_len - 1, 7))) { return CMD_ERROR; } /* Check if the station is buildable */ if (HasBit(statspec->callback_mask, CBM_STATION_AVAIL)) { uint16 cb_res = GetStationCallback(CBID_STATION_AVAILABILITY, 0, 0, statspec, nullptr, INVALID_TILE); if (cb_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(statspec->grf_prop.grffile, CBID_STATION_AVAILABILITY, cb_res)) return CMD_ERROR; } } if (flags & DC_EXEC) { TileIndexDiff tile_delta; byte *layout_ptr; byte numtracks_orig; Track track; st->train_station = new_location; st->AddFacility(FACIL_TRAIN, new_location.tile); st->rect.BeforeAddRect(tile_org, w_org, h_org, StationRect::ADD_TRY); if (statspec != nullptr) { /* Include this station spec's animation trigger bitmask * in the station's cached copy. */ st->cached_anim_triggers |= statspec->animation.triggers; } tile_delta = (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1)); track = AxisToTrack(axis); layout_ptr = AllocaM(byte, numtracks * plat_len); GetStationLayout(layout_ptr, numtracks, plat_len, statspec); numtracks_orig = numtracks; Company *c = Company::Get(st->owner); TileIndex tile_track = tile_org; do { TileIndex tile = tile_track; int w = plat_len; do { byte layout = *layout_ptr++; if (IsRailStationTile(tile) && HasStationReservation(tile)) { /* Check for trains having a reservation for this tile. */ Train *v = GetTrainForReservation(tile, AxisToTrack(GetRailStationAxis(tile))); if (v != nullptr) { affected_vehicles.push_back(v); FreeTrainReservation(v); } } /* Railtype can change when overbuilding. */ if (IsRailStationTile(tile)) { if (!IsStationTileBlocked(tile)) c->infrastructure.rail[GetRailType(tile)]--; c->infrastructure.station--; } /* Remove animation if overbuilding */ DeleteAnimatedTile(tile); byte old_specindex = HasStationTileRail(tile) ? GetCustomStationSpecIndex(tile) : 0; MakeRailStation(tile, st->owner, st->index, axis, layout & ~1, rt); /* Free the spec if we overbuild something */ DeallocateSpecFromStation(st, old_specindex); SetCustomStationSpecIndex(tile, specindex); SetStationTileRandomBits(tile, GB(Random(), 0, 4)); SetAnimationFrame(tile, 0); if (!IsStationTileBlocked(tile)) c->infrastructure.rail[rt]++; c->infrastructure.station++; if (statspec != nullptr) { /* Use a fixed axis for GetPlatformInfo as our platforms / numtracks are always the right way around */ uint32 platinfo = GetPlatformInfo(AXIS_X, GetStationGfx(tile), plat_len, numtracks_orig, plat_len - w, numtracks_orig - numtracks, false); /* As the station is not yet completely finished, the station does not yet exist. */ uint16 callback = GetStationCallback(CBID_STATION_TILE_LAYOUT, platinfo, 0, statspec, nullptr, tile); if (callback != CALLBACK_FAILED) { if (callback < 8) { SetStationGfx(tile, (callback & ~1) + axis); } else { ErrorUnknownCallbackResult(statspec->grf_prop.grffile->grfid, CBID_STATION_TILE_LAYOUT, callback); } } /* Trigger station animation -- after building? */ TriggerStationAnimation(st, tile, SAT_BUILT); } tile += tile_delta; } while (--w); AddTrackToSignalBuffer(tile_track, track, _current_company); YapfNotifyTrackLayoutChange(tile_track, track); tile_track += tile_delta ^ TileDiffXY(1, 1); // perpendicular to tile_delta } while (--numtracks); for (uint i = 0; i < affected_vehicles.size(); ++i) { /* Restore reservations of trains. */ RestoreTrainReservation(affected_vehicles[i]); } /* Check whether we need to expand the reservation of trains already on the station. */ TileArea update_reservation_area; if (axis == AXIS_X) { update_reservation_area = TileArea(tile_org, 1, numtracks_orig); } else { update_reservation_area = TileArea(tile_org, numtracks_orig, 1); } for (TileIndex tile : update_reservation_area) { /* Don't even try to make eye candy parts reserved. */ if (IsStationTileBlocked(tile)) continue; DiagDirection dir = AxisToDiagDir(axis); TileIndexDiff tile_offset = TileOffsByDiagDir(dir); TileIndex platform_begin = tile; TileIndex platform_end = tile; /* We can only account for tiles that are reachable from this tile, so ignore primarily blocked tiles while finding the platform begin and end. */ for (TileIndex next_tile = platform_begin - tile_offset; IsCompatibleTrainStationTile(next_tile, platform_begin); next_tile -= tile_offset) { platform_begin = next_tile; } for (TileIndex next_tile = platform_end + tile_offset; IsCompatibleTrainStationTile(next_tile, platform_end); next_tile += tile_offset) { platform_end = next_tile; } /* If there is at least on reservation on the platform, we reserve the whole platform. */ bool reservation = false; for (TileIndex t = platform_begin; !reservation && t <= platform_end; t += tile_offset) { reservation = HasStationReservation(t); } if (reservation) { SetRailStationPlatformReservation(platform_begin, dir, true); } } st->MarkTilesDirty(false); st->AfterStationTileSetChange(true, STATION_RAIL); } return cost; } static TileArea MakeStationAreaSmaller(BaseStation *st, TileArea ta, bool (*func)(BaseStation *, TileIndex)) { restart: /* too small? */ if (ta.w != 0 && ta.h != 0) { /* check the left side, x = constant, y changes */ for (uint i = 0; !func(st, ta.tile + TileDiffXY(0, i));) { /* the left side is unused? */ if (++i == ta.h) { ta.tile += TileDiffXY(1, 0); ta.w--; goto restart; } } /* check the right side, x = constant, y changes */ for (uint i = 0; !func(st, ta.tile + TileDiffXY(ta.w - 1, i));) { /* the right side is unused? */ if (++i == ta.h) { ta.w--; goto restart; } } /* check the upper side, y = constant, x changes */ for (uint i = 0; !func(st, ta.tile + TileDiffXY(i, 0));) { /* the left side is unused? */ if (++i == ta.w) { ta.tile += TileDiffXY(0, 1); ta.h--; goto restart; } } /* check the lower side, y = constant, x changes */ for (uint i = 0; !func(st, ta.tile + TileDiffXY(i, ta.h - 1));) { /* the left side is unused? */ if (++i == ta.w) { ta.h--; goto restart; } } } else { ta.Clear(); } return ta; } static bool TileBelongsToRailStation(BaseStation *st, TileIndex tile) { return st->TileBelongsToRailStation(tile); } static void MakeRailStationAreaSmaller(BaseStation *st) { st->train_station = MakeStationAreaSmaller(st, st->train_station, TileBelongsToRailStation); } static bool TileBelongsToShipStation(BaseStation *st, TileIndex tile) { return IsDockTile(tile) && GetStationIndex(tile) == st->index; } static void MakeShipStationAreaSmaller(Station *st) { st->ship_station = MakeStationAreaSmaller(st, st->ship_station, TileBelongsToShipStation); UpdateStationDockingTiles(st); } /** * Remove a number of tiles from any rail station within the area. * @param ta the area to clear station tile from. * @param affected_stations the stations affected. * @param flags the command flags. * @param removal_cost the cost for removing the tile, including the rail. * @param keep_rail whether to keep the rail of the station. * @tparam T the type of station to remove. * @return the number of cleared tiles or an error. */ template CommandCost RemoveFromRailBaseStation(TileArea ta, std::vector &affected_stations, DoCommandFlag flags, Money removal_cost, bool keep_rail) { /* Count of the number of tiles removed */ int quantity = 0; CommandCost total_cost(EXPENSES_CONSTRUCTION); /* Accumulator for the errors seen during clearing. If no errors happen, * and the quantity is 0 there is no station. Otherwise it will be one * of the other error that got accumulated. */ CommandCost error; /* Do the action for every tile into the area */ for (TileIndex tile : ta) { /* Make sure the specified tile is a rail station */ if (!HasStationTileRail(tile)) continue; /* If there is a vehicle on ground, do not allow to remove (flood) the tile */ CommandCost ret = EnsureNoVehicleOnGround(tile); error.AddCost(ret); if (ret.Failed()) continue; /* Check ownership of station */ T *st = T::GetByTile(tile); if (st == nullptr) continue; if (_current_company != OWNER_WATER) { CommandCost ret = CheckOwnership(st->owner); error.AddCost(ret); if (ret.Failed()) continue; } /* If we reached here, the tile is valid so increase the quantity of tiles we will remove */ quantity++; if (keep_rail || IsStationTileBlocked(tile)) { /* Don't refund the 'steel' of the track when we keep the * rail, or when the tile didn't have any rail at all. */ total_cost.AddCost(-_price[PR_CLEAR_RAIL]); } if (flags & DC_EXEC) { /* read variables before the station tile is removed */ uint specindex = GetCustomStationSpecIndex(tile); Track track = GetRailStationTrack(tile); Owner owner = GetTileOwner(tile); RailType rt = GetRailType(tile); Train *v = nullptr; if (HasStationReservation(tile)) { v = GetTrainForReservation(tile, track); if (v != nullptr) FreeTrainReservation(v); } bool build_rail = keep_rail && !IsStationTileBlocked(tile); if (!build_rail && !IsStationTileBlocked(tile)) Company::Get(owner)->infrastructure.rail[rt]--; DoClearSquare(tile); DeleteNewGRFInspectWindow(GSF_STATIONS, tile); if (build_rail) MakeRailNormal(tile, owner, TrackToTrackBits(track), rt); Company::Get(owner)->infrastructure.station--; DirtyCompanyInfrastructureWindows(owner); st->rect.AfterRemoveTile(st, tile); AddTrackToSignalBuffer(tile, track, owner); YapfNotifyTrackLayoutChange(tile, track); DeallocateSpecFromStation(st, specindex); include(affected_stations, st); if (v != nullptr) RestoreTrainReservation(v); } } if (quantity == 0) return error.Failed() ? error : CommandCost(STR_ERROR_THERE_IS_NO_STATION); for (T *st : affected_stations) { /* now we need to make the "spanned" area of the railway station smaller * if we deleted something at the edges. * we also need to adjust train_tile. */ MakeRailStationAreaSmaller(st); UpdateStationSignCoord(st); /* if we deleted the whole station, delete the train facility. */ if (st->train_station.tile == INVALID_TILE) { st->facilities &= ~FACIL_TRAIN; SetWindowWidgetDirty(WC_STATION_VIEW, st->index, WID_SV_TRAINS); MarkCatchmentTilesDirty(); st->UpdateVirtCoord(); DeleteStationIfEmpty(st); } } total_cost.AddCost(quantity * removal_cost); return total_cost; } /** * Remove a single tile from a rail station. * This allows for custom-built station with holes and weird layouts * @param flags operation to perform * @param start tile of station piece to remove * @param end other edge of the rect to remove * @param keep_rail if set keep the rail * @return the cost of this operation or an error */ CommandCost CmdRemoveFromRailStation(DoCommandFlag flags, TileIndex start, TileIndex end, bool keep_rail) { if (end == 0) end = start; if (start >= MapSize() || end >= MapSize()) return CMD_ERROR; TileArea ta(start, end); std::vector affected_stations; CommandCost ret = RemoveFromRailBaseStation(ta, affected_stations, flags, _price[PR_CLEAR_STATION_RAIL], keep_rail); if (ret.Failed()) return ret; /* Do all station specific functions here. */ for (Station *st : affected_stations) { if (st->train_station.tile == INVALID_TILE) SetWindowWidgetDirty(WC_STATION_VIEW, st->index, WID_SV_TRAINS); st->MarkTilesDirty(false); MarkCatchmentTilesDirty(); st->RecomputeCatchment(); } /* Now apply the rail cost to the number that we deleted */ return ret; } /** * Remove a single tile from a waypoint. * This allows for custom-built waypoint with holes and weird layouts * @param flags operation to perform * @param start tile of waypoint piece to remove * @param end other edge of the rect to remove * @param keep_rail if set keep the rail * @return the cost of this operation or an error */ CommandCost CmdRemoveFromRailWaypoint(DoCommandFlag flags, TileIndex start, TileIndex end, bool keep_rail) { if (end == 0) end = start; if (start >= MapSize() || end >= MapSize()) return CMD_ERROR; TileArea ta(start, end); std::vector affected_stations; return RemoveFromRailBaseStation(ta, affected_stations, flags, _price[PR_CLEAR_WAYPOINT_RAIL], keep_rail); } /** * Remove a rail station/waypoint * @param st The station/waypoint to remove the rail part from * @param flags operation to perform * @param removal_cost the cost for removing a tile * @tparam T the type of station to remove * @return cost or failure of operation */ template CommandCost RemoveRailStation(T *st, DoCommandFlag flags, Money removal_cost) { /* Current company owns the station? */ if (_current_company != OWNER_WATER) { CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; } /* determine width and height of platforms */ TileArea ta = st->train_station; assert(ta.w != 0 && ta.h != 0); CommandCost cost(EXPENSES_CONSTRUCTION); /* clear all areas of the station */ for (TileIndex tile : ta) { /* only remove tiles that are actually train station tiles */ if (st->TileBelongsToRailStation(tile)) { std::vector affected_stations; // dummy CommandCost ret = RemoveFromRailBaseStation(TileArea(tile, 1, 1), affected_stations, flags, removal_cost, false); if (ret.Failed()) return ret; cost.AddCost(ret); } } return cost; } /** * Remove a rail station * @param tile Tile of the station. * @param flags operation to perform * @return cost or failure of operation */ static CommandCost RemoveRailStation(TileIndex tile, DoCommandFlag flags) { /* if there is flooding, remove platforms tile by tile */ if (_current_company == OWNER_WATER) { return Command::Do(DC_EXEC, tile, 0, false); } Station *st = Station::GetByTile(tile); CommandCost cost = RemoveRailStation(st, flags, _price[PR_CLEAR_STATION_RAIL]); if (flags & DC_EXEC) st->RecomputeCatchment(); return cost; } /** * Remove a rail waypoint * @param tile Tile of the waypoint. * @param flags operation to perform * @return cost or failure of operation */ static CommandCost RemoveRailWaypoint(TileIndex tile, DoCommandFlag flags) { /* if there is flooding, remove waypoints tile by tile */ if (_current_company == OWNER_WATER) { return Command::Do(DC_EXEC, tile, 0, false); } return RemoveRailStation(Waypoint::GetByTile(tile), flags, _price[PR_CLEAR_WAYPOINT_RAIL]); } /** * @param truck_station Determines whether a stop is #ROADSTOP_BUS or #ROADSTOP_TRUCK * @param st The Station to do the whole procedure for * @return a pointer to where to link a new RoadStop* */ static RoadStop **FindRoadStopSpot(bool truck_station, Station *st) { RoadStop **primary_stop = (truck_station) ? &st->truck_stops : &st->bus_stops; if (*primary_stop == nullptr) { /* we have no roadstop of the type yet, so write a "primary stop" */ return primary_stop; } else { /* there are stops already, so append to the end of the list */ RoadStop *stop = *primary_stop; while (stop->next != nullptr) stop = stop->next; return &stop->next; } } static CommandCost RemoveRoadStop(TileIndex tile, DoCommandFlag flags); /** * Find a nearby station that joins this road stop. * @param existing_stop an existing road stop we build over * @param station_to_join the station to join to * @param adjacent whether adjacent stations are allowed * @param ta the area of the newly build station * @param st 'return' pointer for the found station * @return command cost with the error or 'okay' */ static CommandCost FindJoiningRoadStop(StationID existing_stop, StationID station_to_join, bool adjacent, TileArea ta, Station **st) { return FindJoiningBaseStation(existing_stop, station_to_join, adjacent, ta, st); } /** * Build a bus or truck stop. * @param flags Operation to perform. * @param tile Northernmost tile of the stop. * @param width Width of the road stop. * @param length Length of the road stop. * @param stop_type Type of road stop (bus/truck). * @param is_drive_through False for normal stops, true for drive-through. * @param ddir Entrance direction (#DiagDirection) for normal stops. Converted to the axis for drive-through stops. * @param rt The roadtype. * @param station_to_join Station ID to join (NEW_STATION if build new one). * @param adjacent Allow stations directly adjacent to other stations. * @return The cost of this operation or an error. */ CommandCost CmdBuildRoadStop(DoCommandFlag flags, TileIndex tile, uint8 width, uint8 length, RoadStopType stop_type, bool is_drive_through, DiagDirection ddir, RoadType rt, StationID station_to_join, bool adjacent) { if (!ValParamRoadType(rt) || !IsValidDiagDirection(ddir) || stop_type >= ROADSTOP_END) return CMD_ERROR; bool reuse = (station_to_join != NEW_STATION); if (!reuse) station_to_join = INVALID_STATION; bool distant_join = (station_to_join != INVALID_STATION); /* Check if the requested road stop is too big */ if (width > _settings_game.station.station_spread || length > _settings_game.station.station_spread) return_cmd_error(STR_ERROR_STATION_TOO_SPREAD_OUT); /* Check for incorrect width / length. */ if (width == 0 || length == 0) return CMD_ERROR; /* Check if the first tile and the last tile are valid */ if (!IsValidTile(tile) || TileAddWrap(tile, width - 1, length - 1) == INVALID_TILE) return CMD_ERROR; TileArea roadstop_area(tile, width, length); if (distant_join && (!_settings_game.station.distant_join_stations || !Station::IsValidID(station_to_join))) return CMD_ERROR; /* Trams only have drive through stops */ if (!is_drive_through && RoadTypeIsTram(rt)) return CMD_ERROR; Axis axis = DiagDirToAxis(ddir); CommandCost ret = CheckIfAuthorityAllowsNewStation(tile, flags); if (ret.Failed()) return ret; bool is_truck_stop = stop_type != ROADSTOP_BUS; /* Total road stop cost. */ CommandCost cost(EXPENSES_CONSTRUCTION, roadstop_area.w * roadstop_area.h * _price[is_truck_stop ? PR_BUILD_STATION_TRUCK : PR_BUILD_STATION_BUS]); StationID est = INVALID_STATION; ret = CheckFlatLandRoadStop(roadstop_area, flags, is_drive_through ? 5 << axis : 1 << ddir, is_drive_through, is_truck_stop, axis, &est, rt); if (ret.Failed()) return ret; cost.AddCost(ret); Station *st = nullptr; ret = FindJoiningRoadStop(est, station_to_join, adjacent, roadstop_area, &st); if (ret.Failed()) return ret; /* Check if this number of road stops can be allocated. */ if (!RoadStop::CanAllocateItem(roadstop_area.w * roadstop_area.h)) return_cmd_error(is_truck_stop ? STR_ERROR_TOO_MANY_TRUCK_STOPS : STR_ERROR_TOO_MANY_BUS_STOPS); ret = BuildStationPart(&st, flags, reuse, roadstop_area, STATIONNAMING_ROAD); if (ret.Failed()) return ret; if (flags & DC_EXEC) { /* Check every tile in the area. */ for (TileIndex cur_tile : roadstop_area) { /* Get existing road types and owners before any tile clearing */ RoadType road_rt = MayHaveRoad(cur_tile) ? GetRoadType(cur_tile, RTT_ROAD) : INVALID_ROADTYPE; RoadType tram_rt = MayHaveRoad(cur_tile) ? GetRoadType(cur_tile, RTT_TRAM) : INVALID_ROADTYPE; Owner road_owner = road_rt != INVALID_ROADTYPE ? GetRoadOwner(cur_tile, RTT_ROAD) : _current_company; Owner tram_owner = tram_rt != INVALID_ROADTYPE ? GetRoadOwner(cur_tile, RTT_TRAM) : _current_company; if (IsTileType(cur_tile, MP_STATION) && IsRoadStop(cur_tile)) { RemoveRoadStop(cur_tile, flags); } RoadStop *road_stop = new RoadStop(cur_tile); /* Insert into linked list of RoadStops. */ RoadStop **currstop = FindRoadStopSpot(is_truck_stop, st); *currstop = road_stop; if (is_truck_stop) { st->truck_station.Add(cur_tile); } else { st->bus_station.Add(cur_tile); } /* Initialize an empty station. */ st->AddFacility(is_truck_stop ? FACIL_TRUCK_STOP : FACIL_BUS_STOP, cur_tile); st->rect.BeforeAddTile(cur_tile, StationRect::ADD_TRY); RoadStopType rs_type = is_truck_stop ? ROADSTOP_TRUCK : ROADSTOP_BUS; if (is_drive_through) { /* Update company infrastructure counts. If the current tile is a normal road tile, remove the old * bits first. */ if (IsNormalRoadTile(cur_tile)) { UpdateCompanyRoadInfrastructure(road_rt, road_owner, -(int)CountBits(GetRoadBits(cur_tile, RTT_ROAD))); UpdateCompanyRoadInfrastructure(tram_rt, tram_owner, -(int)CountBits(GetRoadBits(cur_tile, RTT_TRAM))); } if (road_rt == INVALID_ROADTYPE && RoadTypeIsRoad(rt)) road_rt = rt; if (tram_rt == INVALID_ROADTYPE && RoadTypeIsTram(rt)) tram_rt = rt; UpdateCompanyRoadInfrastructure(road_rt, road_owner, ROAD_STOP_TRACKBIT_FACTOR); UpdateCompanyRoadInfrastructure(tram_rt, tram_owner, ROAD_STOP_TRACKBIT_FACTOR); MakeDriveThroughRoadStop(cur_tile, st->owner, road_owner, tram_owner, st->index, rs_type, road_rt, tram_rt, axis); road_stop->MakeDriveThrough(); } else { if (road_rt == INVALID_ROADTYPE && RoadTypeIsRoad(rt)) road_rt = rt; if (tram_rt == INVALID_ROADTYPE && RoadTypeIsTram(rt)) tram_rt = rt; /* Non-drive-through stop never overbuild and always count as two road bits. */ Company::Get(st->owner)->infrastructure.road[rt] += ROAD_STOP_TRACKBIT_FACTOR; MakeRoadStop(cur_tile, st->owner, st->index, rs_type, road_rt, tram_rt, ddir); } Company::Get(st->owner)->infrastructure.station++; MarkTileDirtyByTile(cur_tile); } if (st != nullptr) { st->AfterStationTileSetChange(true, is_truck_stop ? STATION_TRUCK: STATION_BUS); } } return cost; } static Vehicle *ClearRoadStopStatusEnum(Vehicle *v, void *) { if (v->type == VEH_ROAD) { /* Okay... we are a road vehicle on a drive through road stop. * But that road stop has just been removed, so we need to make * sure we are in a valid state... however, vehicles can also * turn on road stop tiles, so only clear the 'road stop' state * bits and only when the state was 'in road stop', otherwise * we'll end up clearing the turn around bits. */ RoadVehicle *rv = RoadVehicle::From(v); if (HasBit(rv->state, RVS_IN_DT_ROAD_STOP)) rv->state &= RVSB_ROAD_STOP_TRACKDIR_MASK; } return nullptr; } /** * Remove a bus station/truck stop * @param tile TileIndex been queried * @param flags operation to perform * @return cost or failure of operation */ static CommandCost RemoveRoadStop(TileIndex tile, DoCommandFlag flags) { Station *st = Station::GetByTile(tile); if (_current_company != OWNER_WATER) { CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; } bool is_truck = IsTruckStop(tile); RoadStop **primary_stop; RoadStop *cur_stop; if (is_truck) { // truck stop primary_stop = &st->truck_stops; cur_stop = RoadStop::GetByTile(tile, ROADSTOP_TRUCK); } else { primary_stop = &st->bus_stops; cur_stop = RoadStop::GetByTile(tile, ROADSTOP_BUS); } assert(cur_stop != nullptr); /* don't do the check for drive-through road stops when company bankrupts */ if (IsDriveThroughStopTile(tile) && (flags & DC_BANKRUPT)) { /* remove the 'going through road stop' status from all vehicles on that tile */ if (flags & DC_EXEC) FindVehicleOnPos(tile, nullptr, &ClearRoadStopStatusEnum); } else { CommandCost ret = EnsureNoVehicleOnGround(tile); if (ret.Failed()) return ret; } if (flags & DC_EXEC) { if (*primary_stop == cur_stop) { /* removed the first stop in the list */ *primary_stop = cur_stop->next; /* removed the only stop? */ if (*primary_stop == nullptr) { st->facilities &= (is_truck ? ~FACIL_TRUCK_STOP : ~FACIL_BUS_STOP); } } else { /* tell the predecessor in the list to skip this stop */ RoadStop *pred = *primary_stop; while (pred->next != cur_stop) pred = pred->next; pred->next = cur_stop->next; } /* Update company infrastructure counts. */ for (RoadTramType rtt : _roadtramtypes) { RoadType rt = GetRoadType(tile, rtt); UpdateCompanyRoadInfrastructure(rt, GetRoadOwner(tile, rtt), -static_cast(ROAD_STOP_TRACKBIT_FACTOR)); } Company::Get(st->owner)->infrastructure.station--; DirtyCompanyInfrastructureWindows(st->owner); if (IsDriveThroughStopTile(tile)) { /* Clears the tile for us */ cur_stop->ClearDriveThrough(); } else { DoClearSquare(tile); } delete cur_stop; /* Make sure no vehicle is going to the old roadstop */ for (RoadVehicle *v : RoadVehicle::Iterate()) { if (v->First() == v && v->current_order.IsType(OT_GOTO_STATION) && v->dest_tile == tile) { v->SetDestTile(v->GetOrderStationLocation(st->index)); } } st->rect.AfterRemoveTile(st, tile); st->AfterStationTileSetChange(false, is_truck ? STATION_TRUCK: STATION_BUS); /* Update the tile area of the truck/bus stop */ if (is_truck) { st->truck_station.Clear(); for (const RoadStop *rs = st->truck_stops; rs != nullptr; rs = rs->next) st->truck_station.Add(rs->xy); } else { st->bus_station.Clear(); for (const RoadStop *rs = st->bus_stops; rs != nullptr; rs = rs->next) st->bus_station.Add(rs->xy); } } return CommandCost(EXPENSES_CONSTRUCTION, _price[is_truck ? PR_CLEAR_STATION_TRUCK : PR_CLEAR_STATION_BUS]); } /** * Remove bus or truck stops. * @param flags Operation to perform. * @param tile Northernmost tile of the removal area. * @param width Width of the removal area. * @param height Height of the removal area. * @param stop_type Type of stop (bus/truck). * @param remove_road Remove roads of drive-through stops? * @return The cost of this operation or an error. */ CommandCost CmdRemoveRoadStop(DoCommandFlag flags, TileIndex tile, uint8 width, uint8 height, RoadStopType stop_type, bool remove_road) { if (stop_type >= ROADSTOP_END) return CMD_ERROR; /* Check for incorrect width / height. */ if (width == 0 || height == 0) return CMD_ERROR; /* Check if the first tile and the last tile are valid */ if (!IsValidTile(tile) || TileAddWrap(tile, width - 1, height - 1) == INVALID_TILE) return CMD_ERROR; /* Bankrupting company is not supposed to remove roads, there may be road vehicles. */ if (remove_road && (flags & DC_BANKRUPT)) return CMD_ERROR; TileArea roadstop_area(tile, width, height); CommandCost cost(EXPENSES_CONSTRUCTION); CommandCost last_error(STR_ERROR_THERE_IS_NO_STATION); bool had_success = false; for (TileIndex cur_tile : roadstop_area) { /* Make sure the specified tile is a road stop of the correct type */ if (!IsTileType(cur_tile, MP_STATION) || !IsRoadStop(cur_tile) || GetRoadStopType(cur_tile) != stop_type) continue; /* Save information on to-be-restored roads before the stop is removed. */ RoadBits road_bits = ROAD_NONE; RoadType road_type[] = { INVALID_ROADTYPE, INVALID_ROADTYPE }; Owner road_owner[] = { OWNER_NONE, OWNER_NONE }; if (IsDriveThroughStopTile(cur_tile)) { for (RoadTramType rtt : _roadtramtypes) { road_type[rtt] = GetRoadType(cur_tile, rtt); if (road_type[rtt] == INVALID_ROADTYPE) continue; road_owner[rtt] = GetRoadOwner(cur_tile, rtt); /* If we don't want to preserve our roads then restore only roads of others. */ if (remove_road && road_owner[rtt] == _current_company) road_type[rtt] = INVALID_ROADTYPE; } road_bits = AxisToRoadBits(DiagDirToAxis(GetRoadStopDir(cur_tile))); } CommandCost ret = RemoveRoadStop(cur_tile, flags); if (ret.Failed()) { last_error = ret; continue; } cost.AddCost(ret); had_success = true; /* Restore roads. */ if ((flags & DC_EXEC) && (road_type[RTT_ROAD] != INVALID_ROADTYPE || road_type[RTT_TRAM] != INVALID_ROADTYPE)) { MakeRoadNormal(cur_tile, road_bits, road_type[RTT_ROAD], road_type[RTT_TRAM], ClosestTownFromTile(cur_tile, UINT_MAX)->index, road_owner[RTT_ROAD], road_owner[RTT_TRAM]); /* Update company infrastructure counts. */ int count = CountBits(road_bits); UpdateCompanyRoadInfrastructure(road_type[RTT_ROAD], road_owner[RTT_ROAD], count); UpdateCompanyRoadInfrastructure(road_type[RTT_TRAM], road_owner[RTT_TRAM], count); } } return had_success ? cost : last_error; } /** * Get a possible noise reduction factor based on distance from town center. * The further you get, the less noise you generate. * So all those folks at city council can now happily slee... work in their offices * @param as airport information * @param distance minimum distance between town and airport * @return the noise that will be generated, according to distance */ uint8 GetAirportNoiseLevelForDistance(const AirportSpec *as, uint distance) { /* 0 cannot be accounted, and 1 is the lowest that can be reduced from town. * So no need to go any further*/ if (as->noise_level < 2) return as->noise_level; /* The steps for measuring noise reduction are based on the "magical" (and arbitrary) 8 base distance * adding the town_council_tolerance 4 times, as a way to graduate, depending of the tolerance. * Basically, it says that the less tolerant a town is, the bigger the distance before * an actual decrease can be granted */ uint8 town_tolerance_distance = 8 + (_settings_game.difficulty.town_council_tolerance * 4); /* now, we want to have the distance segmented using the distance judged bareable by town * This will give us the coefficient of reduction the distance provides. */ uint noise_reduction = distance / town_tolerance_distance; /* If the noise reduction equals the airport noise itself, don't give it for free. * Otherwise, simply reduce the airport's level. */ return noise_reduction >= as->noise_level ? 1 : as->noise_level - noise_reduction; } /** * Finds the town nearest to given airport. Based on minimal manhattan distance to any airport's tile. * If two towns have the same distance, town with lower index is returned. * @param as airport's description * @param it An iterator over all airport tiles * @param[out] mindist Minimum distance to town * @return nearest town to airport */ Town *AirportGetNearestTown(const AirportSpec *as, const TileIterator &it, uint &mindist) { assert(Town::GetNumItems() > 0); Town *nearest = nullptr; uint perimeter_min_x = TileX(it); uint perimeter_min_y = TileY(it); uint perimeter_max_x = perimeter_min_x + as->size_x - 1; uint perimeter_max_y = perimeter_min_y + as->size_y - 1; mindist = UINT_MAX - 1; // prevent overflow std::unique_ptr copy(it.Clone()); for (TileIndex cur_tile = *copy; cur_tile != INVALID_TILE; cur_tile = ++*copy) { if (TileX(cur_tile) == perimeter_min_x || TileX(cur_tile) == perimeter_max_x || TileY(cur_tile) == perimeter_min_y || TileY(cur_tile) == perimeter_max_y) { Town *t = CalcClosestTownFromTile(cur_tile, mindist + 1); if (t == nullptr) continue; uint dist = DistanceManhattan(t->xy, cur_tile); if (dist == mindist && t->index < nearest->index) nearest = t; if (dist < mindist) { nearest = t; mindist = dist; } } } return nearest; } /** Recalculate the noise generated by the airports of each town */ void UpdateAirportsNoise() { for (Town *t : Town::Iterate()) t->noise_reached = 0; for (const Station *st : Station::Iterate()) { if (st->airport.tile != INVALID_TILE && st->airport.type != AT_OILRIG) { const AirportSpec *as = st->airport.GetSpec(); AirportTileIterator it(st); uint dist; Town *nearest = AirportGetNearestTown(as, it, dist); nearest->noise_reached += GetAirportNoiseLevelForDistance(as, dist); } } } /** * Place an Airport. * @param flags operation to perform * @param tile tile where airport will be built * @param airport_type airport type, @see airport.h * @param layout airport layout * @param station_to_join station ID to join (NEW_STATION if build new one) * @param allow_adjacent allow airports directly adjacent to other airports. * @return the cost of this operation or an error */ CommandCost CmdBuildAirport(DoCommandFlag flags, TileIndex tile, byte airport_type, byte layout, StationID station_to_join, bool allow_adjacent) { bool reuse = (station_to_join != NEW_STATION); if (!reuse) station_to_join = INVALID_STATION; bool distant_join = (station_to_join != INVALID_STATION); if (distant_join && (!_settings_game.station.distant_join_stations || !Station::IsValidID(station_to_join))) return CMD_ERROR; if (airport_type >= NUM_AIRPORTS) return CMD_ERROR; CommandCost ret = CheckIfAuthorityAllowsNewStation(tile, flags); if (ret.Failed()) return ret; /* Check if a valid, buildable airport was chosen for construction */ const AirportSpec *as = AirportSpec::Get(airport_type); if (!as->IsAvailable() || layout >= as->num_table) return CMD_ERROR; if (!as->IsWithinMapBounds(layout, tile)) return CMD_ERROR; Direction rotation = as->rotation[layout]; int w = as->size_x; int h = as->size_y; if (rotation == DIR_E || rotation == DIR_W) Swap(w, h); TileArea airport_area = TileArea(tile, w, h); if (w > _settings_game.station.station_spread || h > _settings_game.station.station_spread) { return_cmd_error(STR_ERROR_STATION_TOO_SPREAD_OUT); } AirportTileTableIterator iter(as->table[layout], tile); CommandCost cost = CheckFlatLandAirport(iter, flags); if (cost.Failed()) return cost; /* The noise level is the noise from the airport and reduce it to account for the distance to the town center. */ uint dist; Town *nearest = AirportGetNearestTown(as, iter, dist); uint newnoise_level = GetAirportNoiseLevelForDistance(as, dist); /* Check if local auth would allow a new airport */ StringID authority_refuse_message = STR_NULL; Town *authority_refuse_town = nullptr; if (_settings_game.economy.station_noise_level) { /* do not allow to build a new airport if this raise the town noise over the maximum allowed by town */ if ((nearest->noise_reached + newnoise_level) > nearest->MaxTownNoise()) { authority_refuse_message = STR_ERROR_LOCAL_AUTHORITY_REFUSES_NOISE; authority_refuse_town = nearest; } } else if (_settings_game.difficulty.town_council_tolerance != TOWN_COUNCIL_PERMISSIVE) { Town *t = ClosestTownFromTile(tile, UINT_MAX); uint num = 0; for (const Station *st : Station::Iterate()) { if (st->town == t && (st->facilities & FACIL_AIRPORT) && st->airport.type != AT_OILRIG) num++; } if (num >= 2) { authority_refuse_message = STR_ERROR_LOCAL_AUTHORITY_REFUSES_AIRPORT; authority_refuse_town = t; } } if (authority_refuse_message != STR_NULL) { SetDParam(0, authority_refuse_town->index); return_cmd_error(authority_refuse_message); } Station *st = nullptr; ret = FindJoiningStation(INVALID_STATION, station_to_join, allow_adjacent, airport_area, &st); if (ret.Failed()) return ret; /* Distant join */ if (st == nullptr && distant_join) st = Station::GetIfValid(station_to_join); ret = BuildStationPart(&st, flags, reuse, airport_area, (GetAirport(airport_type)->flags & AirportFTAClass::AIRPLANES) ? STATIONNAMING_AIRPORT : STATIONNAMING_HELIPORT); if (ret.Failed()) return ret; if (st != nullptr && st->airport.tile != INVALID_TILE) { return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_AIRPORT); } for (AirportTileTableIterator iter(as->table[layout], tile); iter != INVALID_TILE; ++iter) { cost.AddCost(_price[PR_BUILD_STATION_AIRPORT]); } if (flags & DC_EXEC) { /* Always add the noise, so there will be no need to recalculate when option toggles */ nearest->noise_reached += newnoise_level; st->AddFacility(FACIL_AIRPORT, tile); st->airport.type = airport_type; st->airport.layout = layout; st->airport.flags = 0; st->airport.rotation = rotation; st->rect.BeforeAddRect(tile, w, h, StationRect::ADD_TRY); for (AirportTileTableIterator iter(as->table[layout], tile); iter != INVALID_TILE; ++iter) { MakeAirport(iter, st->owner, st->index, iter.GetStationGfx(), WATER_CLASS_INVALID); SetStationTileRandomBits(iter, GB(Random(), 0, 4)); st->airport.Add(iter); if (AirportTileSpec::Get(GetTranslatedAirportTileID(iter.GetStationGfx()))->animation.status != ANIM_STATUS_NO_ANIMATION) AddAnimatedTile(iter); } /* Only call the animation trigger after all tiles have been built */ for (AirportTileTableIterator iter(as->table[layout], tile); iter != INVALID_TILE; ++iter) { AirportTileAnimationTrigger(st, iter, AAT_BUILT); } UpdateAirplanesOnNewStation(st); Company::Get(st->owner)->infrastructure.airport++; st->AfterStationTileSetChange(true, STATION_AIRPORT); InvalidateWindowData(WC_STATION_VIEW, st->index, -1); if (_settings_game.economy.station_noise_level) { SetWindowDirty(WC_TOWN_VIEW, nearest->index); } } return cost; } /** * Remove an airport * @param tile TileIndex been queried * @param flags operation to perform * @return cost or failure of operation */ static CommandCost RemoveAirport(TileIndex tile, DoCommandFlag flags) { Station *st = Station::GetByTile(tile); if (_current_company != OWNER_WATER) { CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; } tile = st->airport.tile; CommandCost cost(EXPENSES_CONSTRUCTION); for (const Aircraft *a : Aircraft::Iterate()) { if (!a->IsNormalAircraft()) continue; if (a->targetairport == st->index && a->state != FLYING) { return_cmd_error(STR_ERROR_AIRCRAFT_IN_THE_WAY); } } if (flags & DC_EXEC) { for (uint i = 0; i < st->airport.GetNumHangars(); ++i) { TileIndex tile_cur = st->airport.GetHangarTile(i); OrderBackup::Reset(tile_cur, false); CloseWindowById(WC_VEHICLE_DEPOT, tile_cur); } const AirportSpec *as = st->airport.GetSpec(); /* The noise level is the noise from the airport and reduce it to account for the distance to the town center. * And as for construction, always remove it, even if the setting is not set, in order to avoid the * need of recalculation */ AirportTileIterator it(st); uint dist; Town *nearest = AirportGetNearestTown(as, it, dist); nearest->noise_reached -= GetAirportNoiseLevelForDistance(as, dist); if (_settings_game.economy.station_noise_level) { SetWindowDirty(WC_TOWN_VIEW, nearest->index); } } for (TileIndex tile_cur : st->airport) { if (!st->TileBelongsToAirport(tile_cur)) continue; CommandCost ret = EnsureNoVehicleOnGround(tile_cur); if (ret.Failed()) return ret; cost.AddCost(_price[PR_CLEAR_STATION_AIRPORT]); if (flags & DC_EXEC) { DeleteAnimatedTile(tile_cur); DoClearSquare(tile_cur); DeleteNewGRFInspectWindow(GSF_AIRPORTTILES, tile_cur); } } if (flags & DC_EXEC) { /* Clear the persistent storage. */ delete st->airport.psa; st->rect.AfterRemoveRect(st, st->airport); st->airport.Clear(); st->facilities &= ~FACIL_AIRPORT; InvalidateWindowData(WC_STATION_VIEW, st->index, -1); Company::Get(st->owner)->infrastructure.airport--; st->AfterStationTileSetChange(false, STATION_AIRPORT); DeleteNewGRFInspectWindow(GSF_AIRPORTS, st->index); } return cost; } /** * Open/close an airport to incoming aircraft. * @param flags Operation to perform. * @param station_id Station ID of the airport. * @return the cost of this operation or an error */ CommandCost CmdOpenCloseAirport(DoCommandFlag flags, StationID station_id) { if (!Station::IsValidID(station_id)) return CMD_ERROR; Station *st = Station::Get(station_id); if (!(st->facilities & FACIL_AIRPORT) || st->owner == OWNER_NONE) return CMD_ERROR; CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; if (flags & DC_EXEC) { st->airport.flags ^= AIRPORT_CLOSED_block; SetWindowWidgetDirty(WC_STATION_VIEW, st->index, WID_SV_CLOSE_AIRPORT); } return CommandCost(); } /** * Tests whether the company's vehicles have this station in orders * @param station station ID * @param include_company If true only check vehicles of \a company, if false only check vehicles of other companies * @param company company ID */ bool HasStationInUse(StationID station, bool include_company, CompanyID company) { for (const Vehicle *v : Vehicle::Iterate()) { if ((v->owner == company) == include_company) { for (const Order *order : v->Orders()) { if ((order->IsType(OT_GOTO_STATION) || order->IsType(OT_GOTO_WAYPOINT)) && order->GetDestination() == station) { return true; } } } } return false; } static const TileIndexDiffC _dock_tileoffs_chkaround[] = { {-1, 0}, { 0, 0}, { 0, 0}, { 0, -1} }; static const byte _dock_w_chk[4] = { 2, 1, 2, 1 }; static const byte _dock_h_chk[4] = { 1, 2, 1, 2 }; /** * Build a dock/haven. * @param flags operation to perform * @param tile tile where dock will be built * @param station_to_join station ID to join (NEW_STATION if build new one) * @param adjacent allow docks directly adjacent to other docks. * @return the cost of this operation or an error */ CommandCost CmdBuildDock(DoCommandFlag flags, TileIndex tile, StationID station_to_join, bool adjacent) { bool reuse = (station_to_join != NEW_STATION); if (!reuse) station_to_join = INVALID_STATION; bool distant_join = (station_to_join != INVALID_STATION); if (distant_join && (!_settings_game.station.distant_join_stations || !Station::IsValidID(station_to_join))) return CMD_ERROR; DiagDirection direction = GetInclinedSlopeDirection(GetTileSlope(tile)); if (direction == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_SITE_UNSUITABLE); direction = ReverseDiagDir(direction); /* Docks cannot be placed on rapids */ if (HasTileWaterGround(tile)) return_cmd_error(STR_ERROR_SITE_UNSUITABLE); CommandCost ret = CheckIfAuthorityAllowsNewStation(tile, flags); if (ret.Failed()) return ret; if (IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST); CommandCost cost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_STATION_DOCK]); ret = Command::Do(flags, tile); if (ret.Failed()) return ret; cost.AddCost(ret); TileIndex tile_cur = tile + TileOffsByDiagDir(direction); if (!IsTileType(tile_cur, MP_WATER) || !IsTileFlat(tile_cur)) { return_cmd_error(STR_ERROR_SITE_UNSUITABLE); } if (IsBridgeAbove(tile_cur)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST); /* Get the water class of the water tile before it is cleared.*/ WaterClass wc = GetWaterClass(tile_cur); ret = Command::Do(flags, tile_cur); if (ret.Failed()) return ret; tile_cur += TileOffsByDiagDir(direction); if (!IsTileType(tile_cur, MP_WATER) || !IsTileFlat(tile_cur)) { return_cmd_error(STR_ERROR_SITE_UNSUITABLE); } TileArea dock_area = TileArea(tile + ToTileIndexDiff(_dock_tileoffs_chkaround[direction]), _dock_w_chk[direction], _dock_h_chk[direction]); /* middle */ Station *st = nullptr; ret = FindJoiningStation(INVALID_STATION, station_to_join, adjacent, dock_area, &st); if (ret.Failed()) return ret; /* Distant join */ if (st == nullptr && distant_join) st = Station::GetIfValid(station_to_join); ret = BuildStationPart(&st, flags, reuse, dock_area, STATIONNAMING_DOCK); if (ret.Failed()) return ret; if (flags & DC_EXEC) { st->ship_station.Add(tile); st->ship_station.Add(tile + TileOffsByDiagDir(direction)); st->AddFacility(FACIL_DOCK, tile); st->rect.BeforeAddRect(dock_area.tile, dock_area.w, dock_area.h, StationRect::ADD_TRY); /* If the water part of the dock is on a canal, update infrastructure counts. * This is needed as we've unconditionally cleared that tile before. */ if (wc == WATER_CLASS_CANAL) { Company::Get(st->owner)->infrastructure.water++; } Company::Get(st->owner)->infrastructure.station += 2; MakeDock(tile, st->owner, st->index, direction, wc); UpdateStationDockingTiles(st); st->AfterStationTileSetChange(true, STATION_DOCK); } return cost; } void RemoveDockingTile(TileIndex t) { for (DiagDirection d = DIAGDIR_BEGIN; d != DIAGDIR_END; d++) { TileIndex tile = t + TileOffsByDiagDir(d); if (!IsValidTile(tile)) continue; if (IsTileType(tile, MP_STATION)) { Station *st = Station::GetByTile(tile); if (st != nullptr) UpdateStationDockingTiles(st); } else if (IsTileType(tile, MP_INDUSTRY)) { Station *neutral = Industry::GetByTile(tile)->neutral_station; if (neutral != nullptr) UpdateStationDockingTiles(neutral); } } } /** * Clear docking tile status from tiles around a removed dock, if the tile has * no neighbours which would keep it as a docking tile. * @param tile Ex-dock tile to check. */ void ClearDockingTilesCheckingNeighbours(TileIndex tile) { assert(IsValidTile(tile)); /* Clear and maybe re-set docking tile */ for (DiagDirection d = DIAGDIR_BEGIN; d != DIAGDIR_END; d++) { TileIndex docking_tile = tile + TileOffsByDiagDir(d); if (!IsValidTile(docking_tile)) continue; if (IsPossibleDockingTile(docking_tile)) { SetDockingTile(docking_tile, false); CheckForDockingTile(docking_tile); } } } /** * Check if a dock tile can be docked from the given direction. * @param t Tile index of dock. * @param d DiagDirection adjacent to dock being tested. (unused) * @return True iff the dock can be docked from the given direction. */ bool IsValidDockingDirectionForDock(TileIndex t, DiagDirection d) { assert(IsDockTile(t)); StationGfx gfx = GetStationGfx(t); return gfx >= GFX_DOCK_BASE_WATER_PART; } /** * Find the part of a dock that is land-based * @param t Dock tile to find land part of * @return tile of land part of dock */ static TileIndex FindDockLandPart(TileIndex t) { assert(IsDockTile(t)); StationGfx gfx = GetStationGfx(t); if (gfx < GFX_DOCK_BASE_WATER_PART) return t; for (DiagDirection d = DIAGDIR_BEGIN; d != DIAGDIR_END; d++) { TileIndex tile = t + TileOffsByDiagDir(d); if (!IsValidTile(tile)) continue; if (!IsDockTile(tile)) continue; if (GetStationGfx(tile) < GFX_DOCK_BASE_WATER_PART && tile + TileOffsByDiagDir(GetDockDirection(tile)) == t) return tile; } return INVALID_TILE; } /** * Remove a dock * @param tile TileIndex been queried * @param flags operation to perform * @return cost or failure of operation */ static CommandCost RemoveDock(TileIndex tile, DoCommandFlag flags) { Station *st = Station::GetByTile(tile); CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; if (!IsDockTile(tile)) return CMD_ERROR; TileIndex tile1 = FindDockLandPart(tile); if (tile1 == INVALID_TILE) return CMD_ERROR; TileIndex tile2 = tile1 + TileOffsByDiagDir(GetDockDirection(tile1)); ret = EnsureNoVehicleOnGround(tile1); if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile2); if (ret.Failed()) return ret; if (flags & DC_EXEC) { DoClearSquare(tile1); MarkTileDirtyByTile(tile1); MakeWaterKeepingClass(tile2, st->owner); st->rect.AfterRemoveTile(st, tile1); st->rect.AfterRemoveTile(st, tile2); MakeShipStationAreaSmaller(st); if (st->ship_station.tile == INVALID_TILE) { st->ship_station.Clear(); st->docking_station.Clear(); st->facilities &= ~FACIL_DOCK; } Company::Get(st->owner)->infrastructure.station -= 2; st->AfterStationTileSetChange(false, STATION_DOCK); ClearDockingTilesCheckingNeighbours(tile1); ClearDockingTilesCheckingNeighbours(tile2); for (Ship *s : Ship::Iterate()) { /* Find all ships going to our dock. */ if (s->current_order.GetDestination() != st->index) { continue; } /* Find ships that are marked as "loading" but are no longer on a * docking tile. Force them to leave the station (as they were loading * on the removed dock). */ if (s->current_order.IsType(OT_LOADING) && !(IsDockingTile(s->tile) && IsShipDestinationTile(s->tile, st->index))) { s->LeaveStation(); } /* If we no longer have a dock, mark the order as invalid and send * the ship to the next order (or, if there is none, make it * wander the world). */ if (s->current_order.IsType(OT_GOTO_STATION) && !(st->facilities & FACIL_DOCK)) { s->SetDestTile(s->GetOrderStationLocation(st->index)); } } } return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_STATION_DOCK]); } #include "table/station_land.h" const DrawTileSprites *GetStationTileLayout(StationType st, byte gfx) { return &_station_display_datas[st][gfx]; } /** * Check whether a sprite is a track sprite, which can be replaced by a non-track ground sprite and a rail overlay. * If the ground sprite is suitable, \a ground is replaced with the new non-track ground sprite, and \a overlay_offset * is set to the overlay to draw. * @param ti Positional info for the tile to decide snowyness etc. May be nullptr. * @param[in,out] ground Groundsprite to draw. * @param[out] overlay_offset Overlay to draw. * @return true if overlay can be drawn. */ bool SplitGroundSpriteForOverlay(const TileInfo *ti, SpriteID *ground, RailTrackOffset *overlay_offset) { bool snow_desert; switch (*ground) { case SPR_RAIL_TRACK_X: case SPR_MONO_TRACK_X: case SPR_MGLV_TRACK_X: snow_desert = false; *overlay_offset = RTO_X; break; case SPR_RAIL_TRACK_Y: case SPR_MONO_TRACK_Y: case SPR_MGLV_TRACK_Y: snow_desert = false; *overlay_offset = RTO_Y; break; case SPR_RAIL_TRACK_X_SNOW: case SPR_MONO_TRACK_X_SNOW: case SPR_MGLV_TRACK_X_SNOW: snow_desert = true; *overlay_offset = RTO_X; break; case SPR_RAIL_TRACK_Y_SNOW: case SPR_MONO_TRACK_Y_SNOW: case SPR_MGLV_TRACK_Y_SNOW: snow_desert = true; *overlay_offset = RTO_Y; break; default: return false; } if (ti != nullptr) { /* Decide snow/desert from tile */ switch (_settings_game.game_creation.landscape) { case LT_ARCTIC: snow_desert = (uint)ti->z > GetSnowLine() * TILE_HEIGHT; break; case LT_TROPIC: snow_desert = GetTropicZone(ti->tile) == TROPICZONE_DESERT; break; default: break; } } *ground = snow_desert ? SPR_FLAT_SNOW_DESERT_TILE : SPR_FLAT_GRASS_TILE; return true; } static void DrawTile_Station(TileInfo *ti) { const NewGRFSpriteLayout *layout = nullptr; DrawTileSprites tmp_rail_layout; const DrawTileSprites *t = nullptr; int32 total_offset; const RailtypeInfo *rti = nullptr; uint32 relocation = 0; uint32 ground_relocation = 0; BaseStation *st = nullptr; const StationSpec *statspec = nullptr; uint tile_layout = 0; if (HasStationRail(ti->tile)) { rti = GetRailTypeInfo(GetRailType(ti->tile)); total_offset = rti->GetRailtypeSpriteOffset(); if (IsCustomStationSpecIndex(ti->tile)) { /* look for customization */ st = BaseStation::GetByTile(ti->tile); statspec = st->speclist[GetCustomStationSpecIndex(ti->tile)].spec; if (statspec != nullptr) { tile_layout = GetStationGfx(ti->tile); if (HasBit(statspec->callback_mask, CBM_STATION_SPRITE_LAYOUT)) { uint16 callback = GetStationCallback(CBID_STATION_SPRITE_LAYOUT, 0, 0, statspec, st, ti->tile); if (callback != CALLBACK_FAILED) tile_layout = (callback & ~1) + GetRailStationAxis(ti->tile); } /* Ensure the chosen tile layout is valid for this custom station */ if (!statspec->renderdata.empty()) { layout = &statspec->renderdata[tile_layout < statspec->renderdata.size() ? tile_layout : (uint)GetRailStationAxis(ti->tile)]; if (!layout->NeedsPreprocessing()) { t = layout; layout = nullptr; } } } } } else { total_offset = 0; } StationGfx gfx = GetStationGfx(ti->tile); if (IsAirport(ti->tile)) { gfx = GetAirportGfx(ti->tile); if (gfx >= NEW_AIRPORTTILE_OFFSET) { const AirportTileSpec *ats = AirportTileSpec::Get(gfx); if (ats->grf_prop.spritegroup[0] != nullptr && DrawNewAirportTile(ti, Station::GetByTile(ti->tile), gfx, ats)) { return; } /* No sprite group (or no valid one) found, meaning no graphics associated. * Use the substitute one instead */ assert(ats->grf_prop.subst_id != INVALID_AIRPORTTILE); gfx = ats->grf_prop.subst_id; } switch (gfx) { case APT_RADAR_GRASS_FENCE_SW: t = &_station_display_datas_airport_radar_grass_fence_sw[GetAnimationFrame(ti->tile)]; break; case APT_GRASS_FENCE_NE_FLAG: t = &_station_display_datas_airport_flag_grass_fence_ne[GetAnimationFrame(ti->tile)]; break; case APT_RADAR_FENCE_SW: t = &_station_display_datas_airport_radar_fence_sw[GetAnimationFrame(ti->tile)]; break; case APT_RADAR_FENCE_NE: t = &_station_display_datas_airport_radar_fence_ne[GetAnimationFrame(ti->tile)]; break; case APT_GRASS_FENCE_NE_FLAG_2: t = &_station_display_datas_airport_flag_grass_fence_ne_2[GetAnimationFrame(ti->tile)]; break; } } Owner owner = GetTileOwner(ti->tile); PaletteID palette; if (Company::IsValidID(owner)) { palette = COMPANY_SPRITE_COLOUR(owner); } else { /* Some stations are not owner by a company, namely oil rigs */ palette = PALETTE_TO_GREY; } if (layout == nullptr && (t == nullptr || t->seq == nullptr)) t = GetStationTileLayout(GetStationType(ti->tile), gfx); /* don't show foundation for docks */ if (ti->tileh != SLOPE_FLAT && !IsDock(ti->tile)) { if (statspec != nullptr && HasBit(statspec->flags, SSF_CUSTOM_FOUNDATIONS)) { /* Station has custom foundations. * Check whether the foundation continues beyond the tile's upper sides. */ uint edge_info = 0; int z; Slope slope = GetFoundationPixelSlope(ti->tile, &z); if (!HasFoundationNW(ti->tile, slope, z)) SetBit(edge_info, 0); if (!HasFoundationNE(ti->tile, slope, z)) SetBit(edge_info, 1); SpriteID image = GetCustomStationFoundationRelocation(statspec, st, ti->tile, tile_layout, edge_info); if (image == 0) goto draw_default_foundation; if (HasBit(statspec->flags, SSF_EXTENDED_FOUNDATIONS)) { /* Station provides extended foundations. */ static const uint8 foundation_parts[] = { 0, 0, 0, 0, // Invalid, Invalid, Invalid, SLOPE_SW 0, 1, 2, 3, // Invalid, SLOPE_EW, SLOPE_SE, SLOPE_WSE 0, 4, 5, 6, // Invalid, SLOPE_NW, SLOPE_NS, SLOPE_NWS 7, 8, 9 // SLOPE_NE, SLOPE_ENW, SLOPE_SEN }; AddSortableSpriteToDraw(image + foundation_parts[ti->tileh], PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z); } else { /* Draw simple foundations, built up from 8 possible foundation sprites. */ /* Each set bit represents one of the eight composite sprites to be drawn. * 'Invalid' entries will not drawn but are included for completeness. */ static const uint8 composite_foundation_parts[] = { /* Invalid (00000000), Invalid (11010001), Invalid (11100100), SLOPE_SW (11100000) */ 0x00, 0xD1, 0xE4, 0xE0, /* Invalid (11001010), SLOPE_EW (11001001), SLOPE_SE (11000100), SLOPE_WSE (11000000) */ 0xCA, 0xC9, 0xC4, 0xC0, /* Invalid (11010010), SLOPE_NW (10010001), SLOPE_NS (11100100), SLOPE_NWS (10100000) */ 0xD2, 0x91, 0xE4, 0xA0, /* SLOPE_NE (01001010), SLOPE_ENW (00001001), SLOPE_SEN (01000100) */ 0x4A, 0x09, 0x44 }; uint8 parts = composite_foundation_parts[ti->tileh]; /* If foundations continue beyond the tile's upper sides then * mask out the last two pieces. */ if (HasBit(edge_info, 0)) ClrBit(parts, 6); if (HasBit(edge_info, 1)) ClrBit(parts, 7); if (parts == 0) { /* We always have to draw at least one sprite to make sure there is a boundingbox and a sprite with the * correct offset for the childsprites. * So, draw the (completely empty) sprite of the default foundations. */ goto draw_default_foundation; } StartSpriteCombine(); for (int i = 0; i < 8; i++) { if (HasBit(parts, i)) { AddSortableSpriteToDraw(image + i, PAL_NONE, ti->x, ti->y, 16, 16, 7, ti->z); } } EndSpriteCombine(); } OffsetGroundSprite(31, 1); ti->z += ApplyPixelFoundationToSlope(FOUNDATION_LEVELED, &ti->tileh); } else { draw_default_foundation: DrawFoundation(ti, FOUNDATION_LEVELED); } } if (IsBuoy(ti->tile)) { DrawWaterClassGround(ti); SpriteID sprite = GetCanalSprite(CF_BUOY, ti->tile); if (sprite != 0) total_offset = sprite - SPR_IMG_BUOY; } else if (IsDock(ti->tile) || (IsOilRig(ti->tile) && IsTileOnWater(ti->tile))) { if (ti->tileh == SLOPE_FLAT) { DrawWaterClassGround(ti); } else { assert(IsDock(ti->tile)); TileIndex water_tile = ti->tile + TileOffsByDiagDir(GetDockDirection(ti->tile)); WaterClass wc = HasTileWaterClass(water_tile) ? GetWaterClass(water_tile) : WATER_CLASS_INVALID; if (wc == WATER_CLASS_SEA) { DrawShoreTile(ti->tileh); } else { DrawClearLandTile(ti, 3); } } } else { if (layout != nullptr) { /* Sprite layout which needs preprocessing */ bool separate_ground = HasBit(statspec->flags, SSF_SEPARATE_GROUND); uint32 var10_values = layout->PrepareLayout(total_offset, rti->fallback_railtype, 0, 0, separate_ground); for (uint8 var10 : SetBitIterator(var10_values)) { uint32 var10_relocation = GetCustomStationRelocation(statspec, st, ti->tile, var10); layout->ProcessRegisters(var10, var10_relocation, separate_ground); } tmp_rail_layout.seq = layout->GetLayout(&tmp_rail_layout.ground); t = &tmp_rail_layout; total_offset = 0; } else if (statspec != nullptr) { /* Simple sprite layout */ ground_relocation = relocation = GetCustomStationRelocation(statspec, st, ti->tile, 0); if (HasBit(statspec->flags, SSF_SEPARATE_GROUND)) { ground_relocation = GetCustomStationRelocation(statspec, st, ti->tile, 1); } ground_relocation += rti->fallback_railtype; } SpriteID image = t->ground.sprite; PaletteID pal = t->ground.pal; RailTrackOffset overlay_offset; if (rti != nullptr && rti->UsesOverlay() && SplitGroundSpriteForOverlay(ti, &image, &overlay_offset)) { SpriteID ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND); DrawGroundSprite(image, PAL_NONE); DrawGroundSprite(ground + overlay_offset, PAL_NONE); if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasStationReservation(ti->tile)) { SpriteID overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY); DrawGroundSprite(overlay + overlay_offset, PALETTE_CRASH); } } else { image += HasBit(image, SPRITE_MODIFIER_CUSTOM_SPRITE) ? ground_relocation : total_offset; if (HasBit(pal, SPRITE_MODIFIER_CUSTOM_SPRITE)) pal += ground_relocation; DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, palette)); /* PBS debugging, draw reserved tracks darker */ if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasStationRail(ti->tile) && HasStationReservation(ti->tile)) { const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile)); DrawGroundSprite(GetRailStationAxis(ti->tile) == AXIS_X ? rti->base_sprites.single_x : rti->base_sprites.single_y, PALETTE_CRASH); } } } if (HasStationRail(ti->tile) && HasRailCatenaryDrawn(GetRailType(ti->tile))) DrawRailCatenary(ti); if (IsRoadStop(ti->tile)) { RoadType road_rt = GetRoadTypeRoad(ti->tile); RoadType tram_rt = GetRoadTypeTram(ti->tile); const RoadTypeInfo* road_rti = road_rt == INVALID_ROADTYPE ? nullptr : GetRoadTypeInfo(road_rt); const RoadTypeInfo* tram_rti = tram_rt == INVALID_ROADTYPE ? nullptr : GetRoadTypeInfo(tram_rt); if (IsDriveThroughStopTile(ti->tile)) { Axis axis = GetRoadStopDir(ti->tile) == DIAGDIR_NE ? AXIS_X : AXIS_Y; uint sprite_offset = axis == AXIS_X ? 1 : 0; DrawRoadOverlays(ti, PAL_NONE, road_rti, tram_rti, sprite_offset, sprite_offset); } else { /* Non-drivethrough road stops are only valid for roads. */ assert(road_rt != INVALID_ROADTYPE && tram_rt == INVALID_ROADTYPE); if (road_rti->UsesOverlay()) { DiagDirection dir = GetRoadStopDir(ti->tile); SpriteID ground = GetCustomRoadSprite(road_rti, ti->tile, ROTSG_ROADSTOP); DrawGroundSprite(ground + dir, PAL_NONE); } } /* Draw road, tram catenary */ DrawRoadCatenary(ti); } if (IsRailWaypoint(ti->tile)) { /* Don't offset the waypoint graphics; they're always the same. */ total_offset = 0; } DrawRailTileSeq(ti, t, TO_BUILDINGS, total_offset, relocation, palette); } void StationPickerDrawSprite(int x, int y, StationType st, RailType railtype, RoadType roadtype, int image) { int32 total_offset = 0; PaletteID pal = COMPANY_SPRITE_COLOUR(_local_company); const DrawTileSprites *t = GetStationTileLayout(st, image); const RailtypeInfo *rti = nullptr; if (railtype != INVALID_RAILTYPE) { rti = GetRailTypeInfo(railtype); total_offset = rti->GetRailtypeSpriteOffset(); } SpriteID img = t->ground.sprite; RailTrackOffset overlay_offset; if (rti != nullptr && rti->UsesOverlay() && SplitGroundSpriteForOverlay(nullptr, &img, &overlay_offset)) { SpriteID ground = GetCustomRailSprite(rti, INVALID_TILE, RTSG_GROUND); DrawSprite(img, PAL_NONE, x, y); DrawSprite(ground + overlay_offset, PAL_NONE, x, y); } else { DrawSprite(img + total_offset, HasBit(img, PALETTE_MODIFIER_COLOUR) ? pal : PAL_NONE, x, y); } if (roadtype != INVALID_ROADTYPE) { const RoadTypeInfo* rti = GetRoadTypeInfo(roadtype); if (image >= 4) { /* Drive-through stop */ uint sprite_offset = 5 - image; /* Road underlay takes precedence over tram */ if (rti->UsesOverlay()) { SpriteID ground = GetCustomRoadSprite(rti, INVALID_TILE, ROTSG_GROUND); DrawSprite(ground + sprite_offset, PAL_NONE, x, y); SpriteID overlay = GetCustomRoadSprite(rti, INVALID_TILE, ROTSG_OVERLAY); if (overlay) DrawSprite(overlay + sprite_offset, PAL_NONE, x, y); } else if (RoadTypeIsTram(roadtype)) { DrawSprite(SPR_TRAMWAY_TRAM + sprite_offset, PAL_NONE, x, y); } } else { /* Drive-in stop */ if (RoadTypeIsRoad(roadtype) && rti->UsesOverlay()) { SpriteID ground = GetCustomRoadSprite(rti, INVALID_TILE, ROTSG_ROADSTOP); DrawSprite(ground + image, PAL_NONE, x, y); } } } /* Default waypoint has no railtype specific sprites */ DrawRailTileSeqInGUI(x, y, t, st == STATION_WAYPOINT ? 0 : total_offset, 0, pal); } static int GetSlopePixelZ_Station(TileIndex tile, uint x, uint y) { return GetTileMaxPixelZ(tile); } static Foundation GetFoundation_Station(TileIndex tile, Slope tileh) { return FlatteningFoundation(tileh); } static void GetTileDesc_Station(TileIndex tile, TileDesc *td) { td->owner[0] = GetTileOwner(tile); if (IsRoadStopTile(tile)) { RoadType road_rt = GetRoadTypeRoad(tile); RoadType tram_rt = GetRoadTypeTram(tile); Owner road_owner = INVALID_OWNER; Owner tram_owner = INVALID_OWNER; if (road_rt != INVALID_ROADTYPE) { const RoadTypeInfo *rti = GetRoadTypeInfo(road_rt); td->roadtype = rti->strings.name; td->road_speed = rti->max_speed / 2; road_owner = GetRoadOwner(tile, RTT_ROAD); } if (tram_rt != INVALID_ROADTYPE) { const RoadTypeInfo *rti = GetRoadTypeInfo(tram_rt); td->tramtype = rti->strings.name; td->tram_speed = rti->max_speed / 2; tram_owner = GetRoadOwner(tile, RTT_TRAM); } if (IsDriveThroughStopTile(tile)) { /* Is there a mix of owners? */ if ((tram_owner != INVALID_OWNER && tram_owner != td->owner[0]) || (road_owner != INVALID_OWNER && road_owner != td->owner[0])) { uint i = 1; if (road_owner != INVALID_OWNER) { td->owner_type[i] = STR_LAND_AREA_INFORMATION_ROAD_OWNER; td->owner[i] = road_owner; i++; } if (tram_owner != INVALID_OWNER) { td->owner_type[i] = STR_LAND_AREA_INFORMATION_TRAM_OWNER; td->owner[i] = tram_owner; } } } } td->build_date = BaseStation::GetByTile(tile)->build_date; if (HasStationTileRail(tile)) { const StationSpec *spec = GetStationSpec(tile); if (spec != nullptr) { td->station_class = StationClass::Get(spec->cls_id)->name; td->station_name = spec->name; if (spec->grf_prop.grffile != nullptr) { const GRFConfig *gc = GetGRFConfig(spec->grf_prop.grffile->grfid); td->grf = gc->GetName(); } } const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile)); td->rail_speed = rti->max_speed; td->railtype = rti->strings.name; } if (IsAirport(tile)) { const AirportSpec *as = Station::GetByTile(tile)->airport.GetSpec(); td->airport_class = AirportClass::Get(as->cls_id)->name; td->airport_name = as->name; const AirportTileSpec *ats = AirportTileSpec::GetByTile(tile); td->airport_tile_name = ats->name; if (as->grf_prop.grffile != nullptr) { const GRFConfig *gc = GetGRFConfig(as->grf_prop.grffile->grfid); td->grf = gc->GetName(); } else if (ats->grf_prop.grffile != nullptr) { const GRFConfig *gc = GetGRFConfig(ats->grf_prop.grffile->grfid); td->grf = gc->GetName(); } } StringID str; switch (GetStationType(tile)) { default: NOT_REACHED(); case STATION_RAIL: str = STR_LAI_STATION_DESCRIPTION_RAILROAD_STATION; break; case STATION_AIRPORT: str = (IsHangar(tile) ? STR_LAI_STATION_DESCRIPTION_AIRCRAFT_HANGAR : STR_LAI_STATION_DESCRIPTION_AIRPORT); break; case STATION_TRUCK: str = STR_LAI_STATION_DESCRIPTION_TRUCK_LOADING_AREA; break; case STATION_BUS: str = STR_LAI_STATION_DESCRIPTION_BUS_STATION; break; case STATION_OILRIG: { const Industry *i = Station::GetByTile(tile)->industry; const IndustrySpec *is = GetIndustrySpec(i->type); td->owner[0] = i->owner; str = is->name; if (is->grf_prop.grffile != nullptr) td->grf = GetGRFConfig(is->grf_prop.grffile->grfid)->GetName(); break; } case STATION_DOCK: str = STR_LAI_STATION_DESCRIPTION_SHIP_DOCK; break; case STATION_BUOY: str = STR_LAI_STATION_DESCRIPTION_BUOY; break; case STATION_WAYPOINT: str = STR_LAI_STATION_DESCRIPTION_WAYPOINT; break; } td->str = str; } static TrackStatus GetTileTrackStatus_Station(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side) { TrackBits trackbits = TRACK_BIT_NONE; switch (mode) { case TRANSPORT_RAIL: if (HasStationRail(tile) && !IsStationTileBlocked(tile)) { trackbits = TrackToTrackBits(GetRailStationTrack(tile)); } break; case TRANSPORT_WATER: /* buoy is coded as a station, it is always on open water */ if (IsBuoy(tile)) { trackbits = TRACK_BIT_ALL; /* remove tracks that connect NE map edge */ if (TileX(tile) == 0) trackbits &= ~(TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_RIGHT); /* remove tracks that connect NW map edge */ if (TileY(tile) == 0) trackbits &= ~(TRACK_BIT_Y | TRACK_BIT_LEFT | TRACK_BIT_UPPER); } break; case TRANSPORT_ROAD: if (IsRoadStop(tile)) { RoadTramType rtt = (RoadTramType)sub_mode; if (!HasTileRoadType(tile, rtt)) break; DiagDirection dir = GetRoadStopDir(tile); Axis axis = DiagDirToAxis(dir); if (side != INVALID_DIAGDIR) { if (axis != DiagDirToAxis(side) || (IsStandardRoadStopTile(tile) && dir != side)) break; } trackbits = AxisToTrackBits(axis); } break; default: break; } return CombineTrackStatus(TrackBitsToTrackdirBits(trackbits), TRACKDIR_BIT_NONE); } static void TileLoop_Station(TileIndex tile) { /* FIXME -- GetTileTrackStatus_Station -> animated stationtiles * hardcoded.....not good */ switch (GetStationType(tile)) { case STATION_AIRPORT: AirportTileAnimationTrigger(Station::GetByTile(tile), tile, AAT_TILELOOP); break; case STATION_DOCK: if (!IsTileFlat(tile)) break; // only handle water part FALLTHROUGH; case STATION_OILRIG: //(station part) case STATION_BUOY: TileLoop_Water(tile); break; default: break; } } static void AnimateTile_Station(TileIndex tile) { if (HasStationRail(tile)) { AnimateStationTile(tile); return; } if (IsAirport(tile)) { AnimateAirportTile(tile); } } static bool ClickTile_Station(TileIndex tile) { const BaseStation *bst = BaseStation::GetByTile(tile); if (bst->facilities & FACIL_WAYPOINT) { ShowWaypointWindow(Waypoint::From(bst)); } else if (IsHangar(tile)) { const Station *st = Station::From(bst); ShowDepotWindow(st->airport.GetHangarTile(st->airport.GetHangarNum(tile)), VEH_AIRCRAFT); } else { ShowStationViewWindow(bst->index); } return true; } static VehicleEnterTileStatus VehicleEnter_Station(Vehicle *v, TileIndex tile, int x, int y) { if (v->type == VEH_TRAIN) { StationID station_id = GetStationIndex(tile); if (!v->current_order.ShouldStopAtStation(v, station_id)) return VETSB_CONTINUE; if (!IsRailStation(tile) || !v->IsFrontEngine()) return VETSB_CONTINUE; int station_ahead; int station_length; int stop = GetTrainStopLocation(station_id, tile, Train::From(v), &station_ahead, &station_length); /* Stop whenever that amount of station ahead + the distance from the * begin of the platform to the stop location is longer than the length * of the platform. Station ahead 'includes' the current tile where the * vehicle is on, so we need to subtract that. */ if (stop + station_ahead - (int)TILE_SIZE >= station_length) return VETSB_CONTINUE; DiagDirection dir = DirToDiagDir(v->direction); x &= 0xF; y &= 0xF; if (DiagDirToAxis(dir) != AXIS_X) Swap(x, y); if (y == TILE_SIZE / 2) { if (dir != DIAGDIR_SE && dir != DIAGDIR_SW) x = TILE_SIZE - 1 - x; stop &= TILE_SIZE - 1; if (x == stop) { return VETSB_ENTERED_STATION | (VehicleEnterTileStatus)(station_id << VETS_STATION_ID_OFFSET); // enter station } else if (x < stop) { v->vehstatus |= VS_TRAIN_SLOWING; uint16 spd = std::max(0, (stop - x) * 20 - 15); if (spd < v->cur_speed) v->cur_speed = spd; } } } else if (v->type == VEH_ROAD) { RoadVehicle *rv = RoadVehicle::From(v); if (rv->state < RVSB_IN_ROAD_STOP && !IsReversingRoadTrackdir((Trackdir)rv->state) && rv->frame == 0) { if (IsRoadStop(tile) && rv->IsFrontEngine()) { /* Attempt to allocate a parking bay in a road stop */ return RoadStop::GetByTile(tile, GetRoadStopType(tile))->Enter(rv) ? VETSB_CONTINUE : VETSB_CANNOT_ENTER; } } } return VETSB_CONTINUE; } /** * Run the watched cargo callback for all houses in the catchment area. * @param st Station. */ void TriggerWatchedCargoCallbacks(Station *st) { /* Collect cargoes accepted since the last big tick. */ CargoTypes cargoes = 0; for (CargoID cid = 0; cid < NUM_CARGO; cid++) { if (HasBit(st->goods[cid].status, GoodsEntry::GES_ACCEPTED_BIGTICK)) SetBit(cargoes, cid); } /* Anything to do? */ if (cargoes == 0) return; /* Loop over all houses in the catchment. */ BitmapTileIterator it(st->catchment_tiles); for (TileIndex tile = it; tile != INVALID_TILE; tile = ++it) { if (IsTileType(tile, MP_HOUSE)) { WatchedCargoCallback(tile, cargoes); } } } /** * This function is called for each station once every 250 ticks. * Not all stations will get the tick at the same time. * @param st the station receiving the tick. * @return true if the station is still valid (wasn't deleted) */ static bool StationHandleBigTick(BaseStation *st) { if (!st->IsInUse()) { if (++st->delete_ctr >= 8) delete st; return false; } if (Station::IsExpected(st)) { TriggerWatchedCargoCallbacks(Station::From(st)); for (CargoID i = 0; i < NUM_CARGO; i++) { ClrBit(Station::From(st)->goods[i].status, GoodsEntry::GES_ACCEPTED_BIGTICK); } } if ((st->facilities & FACIL_WAYPOINT) == 0) UpdateStationAcceptance(Station::From(st), true); return true; } static inline void byte_inc_sat(byte *p) { byte b = *p + 1; if (b != 0) *p = b; } /** * Truncate the cargo by a specific amount. * @param cs The type of cargo to perform the truncation for. * @param ge The goods entry, of the station, to truncate. * @param amount The amount to truncate the cargo by. */ static void TruncateCargo(const CargoSpec *cs, GoodsEntry *ge, uint amount = UINT_MAX) { /* If truncating also punish the source stations' ratings to * decrease the flow of incoming cargo. */ StationCargoAmountMap waiting_per_source; ge->cargo.Truncate(amount, &waiting_per_source); for (StationCargoAmountMap::iterator i(waiting_per_source.begin()); i != waiting_per_source.end(); ++i) { Station *source_station = Station::GetIfValid(i->first); if (source_station == nullptr) continue; GoodsEntry &source_ge = source_station->goods[cs->Index()]; source_ge.max_waiting_cargo = std::max(source_ge.max_waiting_cargo, i->second); } } static void UpdateStationRating(Station *st) { bool waiting_changed = false; byte_inc_sat(&st->time_since_load); byte_inc_sat(&st->time_since_unload); for (const CargoSpec *cs : CargoSpec::Iterate()) { GoodsEntry *ge = &st->goods[cs->Index()]; /* Slowly increase the rating back to its original level in the case we * didn't deliver cargo yet to this station. This happens when a bribe * failed while you didn't moved that cargo yet to a station. */ if (!ge->HasRating() && ge->rating < INITIAL_STATION_RATING) { ge->rating++; } /* Only change the rating if we are moving this cargo */ if (ge->HasRating()) { byte_inc_sat(&ge->time_since_pickup); if (ge->time_since_pickup == 255 && _settings_game.order.selectgoods) { ClrBit(ge->status, GoodsEntry::GES_RATING); ge->last_speed = 0; TruncateCargo(cs, ge); waiting_changed = true; continue; } bool skip = false; int rating = 0; uint waiting = ge->cargo.AvailableCount(); /* num_dests is at least 1 if there is any cargo as * INVALID_STATION is also a destination. */ uint num_dests = (uint)ge->cargo.Packets()->MapSize(); /* Average amount of cargo per next hop, but prefer solitary stations * with only one or two next hops. They are allowed to have more * cargo waiting per next hop. * With manual cargo distribution waiting_avg = waiting / 2 as then * INVALID_STATION is the only destination. */ uint waiting_avg = waiting / (num_dests + 1); if (HasBit(cs->callback_mask, CBM_CARGO_STATION_RATING_CALC)) { /* Perform custom station rating. If it succeeds the speed, days in transit and * waiting cargo ratings must not be executed. */ /* NewGRFs expect last speed to be 0xFF when no vehicle has arrived yet. */ uint last_speed = ge->HasVehicleEverTriedLoading() ? ge->last_speed : 0xFF; uint32 var18 = std::min(ge->time_since_pickup, 0xFFu) | (std::min(ge->max_waiting_cargo, 0xFFFFu) << 8) | (std::min(last_speed, 0xFFu) << 24); /* Convert to the 'old' vehicle types */ uint32 var10 = (st->last_vehicle_type == VEH_INVALID) ? 0x0 : (st->last_vehicle_type + 0x10); uint16 callback = GetCargoCallback(CBID_CARGO_STATION_RATING_CALC, var10, var18, cs); if (callback != CALLBACK_FAILED) { skip = true; rating = GB(callback, 0, 14); /* Simulate a 15 bit signed value */ if (HasBit(callback, 14)) rating -= 0x4000; } } if (!skip) { int b = ge->last_speed - 85; if (b >= 0) rating += b >> 2; byte waittime = ge->time_since_pickup; if (st->last_vehicle_type == VEH_SHIP) waittime >>= 2; if (waittime <= 21) rating += 25; if (waittime <= 12) rating += 25; if (waittime <= 6) rating += 45; if (waittime <= 3) rating += 35; rating -= 90; if (ge->max_waiting_cargo <= 1500) rating += 55; if (ge->max_waiting_cargo <= 1000) rating += 35; if (ge->max_waiting_cargo <= 600) rating += 10; if (ge->max_waiting_cargo <= 300) rating += 20; if (ge->max_waiting_cargo <= 100) rating += 10; } if (Company::IsValidID(st->owner) && HasBit(st->town->statues, st->owner)) rating += 26; byte age = ge->last_age; if (age < 3) rating += 10; if (age < 2) rating += 10; if (age < 1) rating += 13; { int or_ = ge->rating; // old rating /* only modify rating in steps of -2, -1, 0, 1 or 2 */ ge->rating = rating = or_ + Clamp(Clamp(rating, 0, 255) - or_, -2, 2); /* if rating is <= 64 and more than 100 items waiting on average per destination, * remove some random amount of goods from the station */ if (rating <= 64 && waiting_avg >= 100) { int dec = Random() & 0x1F; if (waiting_avg < 200) dec &= 7; waiting -= (dec + 1) * num_dests; waiting_changed = true; } /* if rating is <= 127 and there are any items waiting, maybe remove some goods. */ if (rating <= 127 && waiting != 0) { uint32 r = Random(); if (rating <= (int)GB(r, 0, 7)) { /* Need to have int, otherwise it will just overflow etc. */ waiting = std::max((int)waiting - (int)((GB(r, 8, 2) - 1) * num_dests), 0); waiting_changed = true; } } /* At some point we really must cap the cargo. Previously this * was a strict 4095, but now we'll have a less strict, but * increasingly aggressive truncation of the amount of cargo. */ static const uint WAITING_CARGO_THRESHOLD = 1 << 12; static const uint WAITING_CARGO_CUT_FACTOR = 1 << 6; static const uint MAX_WAITING_CARGO = 1 << 15; if (waiting > WAITING_CARGO_THRESHOLD) { uint difference = waiting - WAITING_CARGO_THRESHOLD; waiting -= (difference / WAITING_CARGO_CUT_FACTOR); waiting = std::min(waiting, MAX_WAITING_CARGO); waiting_changed = true; } /* We can't truncate cargo that's already reserved for loading. * Thus StoredCount() here. */ if (waiting_changed && waiting < ge->cargo.AvailableCount()) { /* Feed back the exact own waiting cargo at this station for the * next rating calculation. */ ge->max_waiting_cargo = 0; TruncateCargo(cs, ge, ge->cargo.AvailableCount() - waiting); } else { /* If the average number per next hop is low, be more forgiving. */ ge->max_waiting_cargo = waiting_avg; } } } } StationID index = st->index; if (waiting_changed) { SetWindowDirty(WC_STATION_VIEW, index); // update whole window } else { SetWindowWidgetDirty(WC_STATION_VIEW, index, WID_SV_ACCEPT_RATING_LIST); // update only ratings list } } /** * Reroute cargo of type c at station st or in any vehicles unloading there. * Make sure the cargo's new next hop is neither "avoid" nor "avoid2". * @param st Station to be rerouted at. * @param c Type of cargo. * @param avoid Original next hop of cargo, avoid this. * @param avoid2 Another station to be avoided when rerouting. */ void RerouteCargo(Station *st, CargoID c, StationID avoid, StationID avoid2) { GoodsEntry &ge = st->goods[c]; /* Reroute cargo in station. */ ge.cargo.Reroute(UINT_MAX, &ge.cargo, avoid, avoid2, &ge); /* Reroute cargo staged to be transferred. */ for (std::list::iterator it(st->loading_vehicles.begin()); it != st->loading_vehicles.end(); ++it) { for (Vehicle *v = *it; v != nullptr; v = v->Next()) { if (v->cargo_type != c) continue; v->cargo.Reroute(UINT_MAX, &v->cargo, avoid, avoid2, &ge); } } } /** * Check all next hops of cargo packets in this station for existence of a * a valid link they may use to travel on. Reroute any cargo not having a valid * link and remove timed out links found like this from the linkgraph. We're * not all links here as that is expensive and useless. A link no one is using * doesn't hurt either. * @param from Station to check. */ void DeleteStaleLinks(Station *from) { for (CargoID c = 0; c < NUM_CARGO; ++c) { const bool auto_distributed = (_settings_game.linkgraph.GetDistributionType(c) != DT_MANUAL); GoodsEntry &ge = from->goods[c]; LinkGraph *lg = LinkGraph::GetIfValid(ge.link_graph); if (lg == nullptr) continue; Node node = (*lg)[ge.node]; for (EdgeIterator it(node.Begin()); it != node.End();) { Edge edge = it->second; Station *to = Station::Get((*lg)[it->first].Station()); assert(to->goods[c].node == it->first); ++it; // Do that before removing the edge. Anything else may crash. assert(_date >= edge.LastUpdate()); uint timeout = LinkGraph::MIN_TIMEOUT_DISTANCE + (DistanceManhattan(from->xy, to->xy) >> 3); if ((uint)(_date - edge.LastUpdate()) > timeout) { bool updated = false; if (auto_distributed) { /* Have all vehicles refresh their next hops before deciding to * remove the node. */ std::vector vehicles; for (OrderList *l : OrderList::Iterate()) { bool found_from = false; bool found_to = false; for (Order *order = l->GetFirstOrder(); order != nullptr; order = order->next) { if (!order->IsType(OT_GOTO_STATION) && !order->IsType(OT_IMPLICIT)) continue; if (order->GetDestination() == from->index) { found_from = true; if (found_to) break; } else if (order->GetDestination() == to->index) { found_to = true; if (found_from) break; } } if (!found_to || !found_from) continue; vehicles.push_back(l->GetFirstSharedVehicle()); } auto iter = vehicles.begin(); while (iter != vehicles.end()) { Vehicle *v = *iter; /* Do not refresh links of vehicles that have been stopped in depot for a long time. */ if (!v->IsStoppedInDepot() || static_cast(_date - v->date_of_last_service) <= LinkGraph::STALE_LINK_DEPOT_TIMEOUT) { LinkRefresher::Run(v, false); // Don't allow merging. Otherwise lg might get deleted. } if (edge.LastUpdate() == _date) { updated = true; break; } Vehicle *next_shared = v->NextShared(); if (next_shared) { *iter = next_shared; ++iter; } else { iter = vehicles.erase(iter); } if (iter == vehicles.end()) iter = vehicles.begin(); } } if (!updated) { /* If it's still considered dead remove it. */ node.RemoveEdge(to->goods[c].node); ge.flows.DeleteFlows(to->index); RerouteCargo(from, c, to->index, from->index); } } else if (edge.LastUnrestrictedUpdate() != INVALID_DATE && (uint)(_date - edge.LastUnrestrictedUpdate()) > timeout) { edge.Restrict(); ge.flows.RestrictFlows(to->index); RerouteCargo(from, c, to->index, from->index); } else if (edge.LastRestrictedUpdate() != INVALID_DATE && (uint)(_date - edge.LastRestrictedUpdate()) > timeout) { edge.Release(); } } assert(_date >= lg->LastCompression()); if ((uint)(_date - lg->LastCompression()) > LinkGraph::COMPRESSION_INTERVAL) { lg->Compress(); } } } /** * Increase capacity for a link stat given by station cargo and next hop. * @param st Station to get the link stats from. * @param cargo Cargo to increase stat for. * @param next_station_id Station the consist will be travelling to next. * @param capacity Capacity to add to link stat. * @param usage Usage to add to link stat. * @param mode Update mode to be applied. */ void IncreaseStats(Station *st, CargoID cargo, StationID next_station_id, uint capacity, uint usage, uint32 time, EdgeUpdateMode mode) { GoodsEntry &ge1 = st->goods[cargo]; Station *st2 = Station::Get(next_station_id); GoodsEntry &ge2 = st2->goods[cargo]; LinkGraph *lg = nullptr; if (ge1.link_graph == INVALID_LINK_GRAPH) { if (ge2.link_graph == INVALID_LINK_GRAPH) { if (LinkGraph::CanAllocateItem()) { lg = new LinkGraph(cargo); LinkGraphSchedule::instance.Queue(lg); ge2.link_graph = lg->index; ge2.node = lg->AddNode(st2); } else { Debug(misc, 0, "Can't allocate link graph"); } } else { lg = LinkGraph::Get(ge2.link_graph); } if (lg) { ge1.link_graph = lg->index; ge1.node = lg->AddNode(st); } } else if (ge2.link_graph == INVALID_LINK_GRAPH) { lg = LinkGraph::Get(ge1.link_graph); ge2.link_graph = lg->index; ge2.node = lg->AddNode(st2); } else { lg = LinkGraph::Get(ge1.link_graph); if (ge1.link_graph != ge2.link_graph) { LinkGraph *lg2 = LinkGraph::Get(ge2.link_graph); if (lg->Size() < lg2->Size()) { LinkGraphSchedule::instance.Unqueue(lg); lg2->Merge(lg); // Updates GoodsEntries of lg lg = lg2; } else { LinkGraphSchedule::instance.Unqueue(lg2); lg->Merge(lg2); // Updates GoodsEntries of lg2 } } } if (lg != nullptr) { (*lg)[ge1.node].UpdateEdge(ge2.node, capacity, usage, time, mode); } } /** * Increase capacity for all link stats associated with vehicles in the given consist. * @param st Station to get the link stats from. * @param front First vehicle in the consist. * @param next_station_id Station the consist will be travelling to next. */ void IncreaseStats(Station *st, const Vehicle *front, StationID next_station_id, uint32 time) { for (const Vehicle *v = front; v != nullptr; v = v->Next()) { if (v->refit_cap > 0) { /* The cargo count can indeed be higher than the refit_cap if * wagons have been auto-replaced and subsequently auto- * refitted to a higher capacity. The cargo gets redistributed * among the wagons in that case. * As usage is not such an important figure anyway we just * ignore the additional cargo then.*/ IncreaseStats(st, v->cargo_type, next_station_id, v->refit_cap, std::min(v->refit_cap, v->cargo.StoredCount()), time, EUM_INCREASE); } } } /* called for every station each tick */ static void StationHandleSmallTick(BaseStation *st) { if ((st->facilities & FACIL_WAYPOINT) != 0 || !st->IsInUse()) return; byte b = st->delete_ctr + 1; if (b >= STATION_RATING_TICKS) b = 0; st->delete_ctr = b; if (b == 0) UpdateStationRating(Station::From(st)); } void OnTick_Station() { if (_game_mode == GM_EDITOR) return; for (BaseStation *st : BaseStation::Iterate()) { StationHandleSmallTick(st); /* Clean up the link graph about once a week. */ if (Station::IsExpected(st) && (_tick_counter + st->index) % STATION_LINKGRAPH_TICKS == 0) { DeleteStaleLinks(Station::From(st)); }; /* Run STATION_ACCEPTANCE_TICKS = 250 tick interval trigger for station animation. * Station index is included so that triggers are not all done * at the same time. */ if ((_tick_counter + st->index) % STATION_ACCEPTANCE_TICKS == 0) { /* Stop processing this station if it was deleted */ if (!StationHandleBigTick(st)) continue; TriggerStationAnimation(st, st->xy, SAT_250_TICKS); if (Station::IsExpected(st)) AirportAnimationTrigger(Station::From(st), AAT_STATION_250_TICKS); } } } /** Monthly loop for stations. */ void StationMonthlyLoop() { for (Station *st : Station::Iterate()) { for (CargoID i = 0; i < NUM_CARGO; i++) { GoodsEntry *ge = &st->goods[i]; SB(ge->status, GoodsEntry::GES_LAST_MONTH, 1, GB(ge->status, GoodsEntry::GES_CURRENT_MONTH, 1)); ClrBit(ge->status, GoodsEntry::GES_CURRENT_MONTH); } } } void ModifyStationRatingAround(TileIndex tile, Owner owner, int amount, uint radius) { ForAllStationsRadius(tile, radius, [&](Station *st) { if (st->owner == owner && DistanceManhattan(tile, st->xy) <= radius) { for (CargoID i = 0; i < NUM_CARGO; i++) { GoodsEntry *ge = &st->goods[i]; if (ge->status != 0) { ge->rating = Clamp(ge->rating + amount, 0, 255); } } } }); } static uint UpdateStationWaiting(Station *st, CargoID type, uint amount, SourceType source_type, SourceID source_id) { /* We can't allocate a CargoPacket? Then don't do anything * at all; i.e. just discard the incoming cargo. */ if (!CargoPacket::CanAllocateItem()) return 0; GoodsEntry &ge = st->goods[type]; amount += ge.amount_fract; ge.amount_fract = GB(amount, 0, 8); amount >>= 8; /* No new "real" cargo item yet. */ if (amount == 0) return 0; StationID next = ge.GetVia(st->index); ge.cargo.Append(new CargoPacket(st->index, st->xy, amount, source_type, source_id), next); LinkGraph *lg = nullptr; if (ge.link_graph == INVALID_LINK_GRAPH) { if (LinkGraph::CanAllocateItem()) { lg = new LinkGraph(type); LinkGraphSchedule::instance.Queue(lg); ge.link_graph = lg->index; ge.node = lg->AddNode(st); } else { Debug(misc, 0, "Can't allocate link graph"); } } else { lg = LinkGraph::Get(ge.link_graph); } if (lg != nullptr) (*lg)[ge.node].UpdateSupply(amount); if (!ge.HasRating()) { InvalidateWindowData(WC_STATION_LIST, st->index); SetBit(ge.status, GoodsEntry::GES_RATING); } TriggerStationRandomisation(st, st->xy, SRT_NEW_CARGO, type); TriggerStationAnimation(st, st->xy, SAT_NEW_CARGO, type); AirportAnimationTrigger(st, AAT_STATION_NEW_CARGO, type); SetWindowDirty(WC_STATION_VIEW, st->index); st->MarkTilesDirty(true); return amount; } static bool IsUniqueStationName(const std::string &name) { for (const Station *st : Station::Iterate()) { if (!st->name.empty() && st->name == name) return false; } return true; } /** * Rename a station * @param flags operation to perform * @param station_id station ID that is to be renamed * @param text the new name or an empty string when resetting to the default * @return the cost of this operation or an error */ CommandCost CmdRenameStation(DoCommandFlag flags, StationID station_id, const std::string &text) { Station *st = Station::GetIfValid(station_id); if (st == nullptr) return CMD_ERROR; CommandCost ret = CheckOwnership(st->owner); if (ret.Failed()) return ret; bool reset = text.empty(); if (!reset) { if (Utf8StringLength(text) >= MAX_LENGTH_STATION_NAME_CHARS) return CMD_ERROR; if (!IsUniqueStationName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE); } if (flags & DC_EXEC) { st->cached_name.clear(); if (reset) { st->name.clear(); } else { st->name = text; } st->UpdateVirtCoord(); InvalidateWindowData(WC_STATION_LIST, st->owner, 1); } return CommandCost(); } static void AddNearbyStationsByCatchment(TileIndex tile, StationList *stations, StationList &nearby) { for (Station *st : nearby) { if (st->TileIsInCatchment(tile)) stations->insert(st); } } /** * Run a tile loop to find stations around a tile, on demand. Cache the result for further requests * @return pointer to a StationList containing all stations found */ const StationList *StationFinder::GetStations() { if (this->tile != INVALID_TILE) { if (IsTileType(this->tile, MP_HOUSE)) { /* Town nearby stations need to be filtered per tile. */ assert(this->w == 1 && this->h == 1); AddNearbyStationsByCatchment(this->tile, &this->stations, Town::GetByTile(this->tile)->stations_near); } else { ForAllStationsAroundTiles(*this, [this](Station *st, TileIndex tile) { this->stations.insert(st); return true; }); } this->tile = INVALID_TILE; } return &this->stations; } static bool CanMoveGoodsToStation(const Station *st, CargoID type) { /* Is the station reserved exclusively for somebody else? */ if (st->owner != OWNER_NONE && st->town->exclusive_counter > 0 && st->town->exclusivity != st->owner) return false; /* Lowest possible rating, better not to give cargo anymore. */ if (st->goods[type].rating == 0) return false; /* Selectively servicing stations, and not this one. */ if (_settings_game.order.selectgoods && !st->goods[type].HasVehicleEverTriedLoading()) return false; if (IsCargoInClass(type, CC_PASSENGERS)) { /* Passengers are never served by just a truck stop. */ if (st->facilities == FACIL_TRUCK_STOP) return false; } else { /* Non-passengers are never served by just a bus stop. */ if (st->facilities == FACIL_BUS_STOP) return false; } return true; } uint MoveGoodsToStation(CargoID type, uint amount, SourceType source_type, SourceID source_id, const StationList *all_stations, Owner exclusivity) { /* Return if nothing to do. Also the rounding below fails for 0. */ if (all_stations->empty()) return 0; if (amount == 0) return 0; Station *first_station = nullptr; typedef std::pair StationInfo; std::vector used_stations; for (Station *st : *all_stations) { if (exclusivity != INVALID_OWNER && exclusivity != st->owner) continue; if (!CanMoveGoodsToStation(st, type)) continue; /* Avoid allocating a vector if there is only one station to significantly * improve performance in this common case. */ if (first_station == nullptr) { first_station = st; continue; } if (used_stations.empty()) { used_stations.reserve(2); used_stations.emplace_back(std::make_pair(first_station, 0)); } used_stations.emplace_back(std::make_pair(st, 0)); } /* no stations around at all? */ if (first_station == nullptr) return 0; if (used_stations.empty()) { /* only one station around */ amount *= first_station->goods[type].rating + 1; return UpdateStationWaiting(first_station, type, amount, source_type, source_id); } uint company_best[OWNER_NONE + 1] = {}; // best rating for each company, including OWNER_NONE uint company_sum[OWNER_NONE + 1] = {}; // sum of ratings for each company uint best_rating = 0; uint best_sum = 0; // sum of best ratings for each company for (auto &p : used_stations) { auto owner = p.first->owner; auto rating = p.first->goods[type].rating; if (rating > company_best[owner]) { best_sum += rating - company_best[owner]; // it's usually faster than iterating companies later company_best[owner] = rating; if (rating > best_rating) best_rating = rating; } company_sum[owner] += rating; } /* From now we'll calculate with fractional cargo amounts. * First determine how much cargo we really have. */ amount *= best_rating + 1; uint moving = 0; for (auto &p : used_stations) { uint owner = p.first->owner; /* Multiply the amount by (company best / sum of best for each company) to get cargo allocated to a company * and by (station rating / sum of ratings in a company) to get the result for a single station. */ p.second = amount * company_best[owner] * p.first->goods[type].rating / best_sum / company_sum[owner]; moving += p.second; } /* If there is some cargo left due to rounding issues distribute it among the best rated stations. */ if (amount > moving) { std::stable_sort(used_stations.begin(), used_stations.end(), [type](const StationInfo &a, const StationInfo &b) { return b.first->goods[type].rating < a.first->goods[type].rating; }); assert(amount - moving <= used_stations.size()); for (uint i = 0; i < amount - moving; i++) { used_stations[i].second++; } } uint moved = 0; for (auto &p : used_stations) { moved += UpdateStationWaiting(p.first, type, p.second, source_type, source_id); } return moved; } void UpdateStationDockingTiles(Station *st) { st->docking_station.Clear(); /* For neutral stations, start with the industry area instead of dock area */ const TileArea *area = st->industry != nullptr ? &st->industry->location : &st->ship_station; if (area->tile == INVALID_TILE) return; int x = TileX(area->tile); int y = TileY(area->tile); /* Expand the area by a tile on each side while * making sure that we remain inside the map. */ int x2 = std::min(x + area->w + 1, MapSizeX()); int x1 = std::max(x - 1, 0); int y2 = std::min(y + area->h + 1, MapSizeY()); int y1 = std::max(y - 1, 0); TileArea ta(TileXY(x1, y1), TileXY(x2 - 1, y2 - 1)); for (TileIndex tile : ta) { if (IsValidTile(tile) && IsPossibleDockingTile(tile)) CheckForDockingTile(tile); } } void BuildOilRig(TileIndex tile) { if (!Station::CanAllocateItem()) { Debug(misc, 0, "Can't allocate station for oilrig at 0x{:X}, reverting to oilrig only", tile); return; } Station *st = new Station(tile); _station_kdtree.Insert(st->index); st->town = ClosestTownFromTile(tile, UINT_MAX); st->string_id = GenerateStationName(st, tile, STATIONNAMING_OILRIG); assert(IsTileType(tile, MP_INDUSTRY)); /* Mark industry as associated both ways */ st->industry = Industry::GetByTile(tile); st->industry->neutral_station = st; DeleteAnimatedTile(tile); MakeOilrig(tile, st->index, GetWaterClass(tile)); st->owner = OWNER_NONE; st->airport.type = AT_OILRIG; st->airport.Add(tile); st->ship_station.Add(tile); st->facilities = FACIL_AIRPORT | FACIL_DOCK; st->build_date = _date; UpdateStationDockingTiles(st); st->rect.BeforeAddTile(tile, StationRect::ADD_FORCE); st->UpdateVirtCoord(); st->RecomputeCatchment(); UpdateStationAcceptance(st, false); } void DeleteOilRig(TileIndex tile) { Station *st = Station::GetByTile(tile); MakeWaterKeepingClass(tile, OWNER_NONE); /* The oil rig station is not supposed to be shared with anything else */ assert(st->facilities == (FACIL_AIRPORT | FACIL_DOCK) && st->airport.type == AT_OILRIG); if (st->industry != nullptr && st->industry->neutral_station == st) { /* Don't leave dangling neutral station pointer */ st->industry->neutral_station = nullptr; } delete st; } static void ChangeTileOwner_Station(TileIndex tile, Owner old_owner, Owner new_owner) { if (IsRoadStopTile(tile)) { for (RoadTramType rtt : _roadtramtypes) { /* Update all roadtypes, no matter if they are present */ if (GetRoadOwner(tile, rtt) == old_owner) { RoadType rt = GetRoadType(tile, rtt); if (rt != INVALID_ROADTYPE) { /* A drive-through road-stop has always two road bits. No need to dirty windows here, we'll redraw the whole screen anyway. */ Company::Get(old_owner)->infrastructure.road[rt] -= 2; if (new_owner != INVALID_OWNER) Company::Get(new_owner)->infrastructure.road[rt] += 2; } SetRoadOwner(tile, rtt, new_owner == INVALID_OWNER ? OWNER_NONE : new_owner); } } } if (!IsTileOwner(tile, old_owner)) return; if (new_owner != INVALID_OWNER) { /* Update company infrastructure counts. Only do it here * if the new owner is valid as otherwise the clear * command will do it for us. No need to dirty windows * here, we'll redraw the whole screen anyway.*/ Company *old_company = Company::Get(old_owner); Company *new_company = Company::Get(new_owner); /* Update counts for underlying infrastructure. */ switch (GetStationType(tile)) { case STATION_RAIL: case STATION_WAYPOINT: if (!IsStationTileBlocked(tile)) { old_company->infrastructure.rail[GetRailType(tile)]--; new_company->infrastructure.rail[GetRailType(tile)]++; } break; case STATION_BUS: case STATION_TRUCK: /* Road stops were already handled above. */ break; case STATION_BUOY: case STATION_DOCK: if (GetWaterClass(tile) == WATER_CLASS_CANAL) { old_company->infrastructure.water--; new_company->infrastructure.water++; } break; default: break; } /* Update station tile count. */ if (!IsBuoy(tile) && !IsAirport(tile)) { old_company->infrastructure.station--; new_company->infrastructure.station++; } /* for buoys, owner of tile is owner of water, st->owner == OWNER_NONE */ SetTileOwner(tile, new_owner); InvalidateWindowClassesData(WC_STATION_LIST, 0); } else { if (IsDriveThroughStopTile(tile)) { /* Remove the drive-through road stop */ Command::Do(DC_EXEC | DC_BANKRUPT, tile, 1, 1, (GetStationType(tile) == STATION_TRUCK) ? ROADSTOP_TRUCK : ROADSTOP_BUS, false); assert(IsTileType(tile, MP_ROAD)); /* Change owner of tile and all roadtypes */ ChangeTileOwner(tile, old_owner, new_owner); } else { Command::Do(DC_EXEC | DC_BANKRUPT, tile); /* Set tile owner of water under (now removed) buoy and dock to OWNER_NONE. * Update owner of buoy if it was not removed (was in orders). * Do not update when owned by OWNER_WATER (sea and rivers). */ if ((IsTileType(tile, MP_WATER) || IsBuoyTile(tile)) && IsTileOwner(tile, old_owner)) SetTileOwner(tile, OWNER_NONE); } } } /** * Check if a drive-through road stop tile can be cleared. * Road stops built on town-owned roads check the conditions * that would allow clearing of the original road. * @param tile road stop tile to check * @param flags command flags * @return true if the road can be cleared */ static bool CanRemoveRoadWithStop(TileIndex tile, DoCommandFlag flags) { /* Yeah... water can always remove stops, right? */ if (_current_company == OWNER_WATER) return true; if (GetRoadTypeTram(tile) != INVALID_ROADTYPE) { Owner tram_owner = GetRoadOwner(tile, RTT_TRAM); if (tram_owner != OWNER_NONE && CheckOwnership(tram_owner).Failed()) return false; } if (GetRoadTypeRoad(tile) != INVALID_ROADTYPE) { Owner road_owner = GetRoadOwner(tile, RTT_ROAD); if (road_owner != OWNER_TOWN) { if (road_owner != OWNER_NONE && CheckOwnership(road_owner).Failed()) return false; } else { if (CheckAllowRemoveRoad(tile, GetAnyRoadBits(tile, RTT_ROAD), OWNER_TOWN, RTT_ROAD, flags).Failed()) return false; } } return true; } /** * Clear a single tile of a station. * @param tile The tile to clear. * @param flags The DoCommand flags related to the "command". * @return The cost, or error of clearing. */ CommandCost ClearTile_Station(TileIndex tile, DoCommandFlag flags) { if (flags & DC_AUTO) { switch (GetStationType(tile)) { default: break; case STATION_RAIL: return_cmd_error(STR_ERROR_MUST_DEMOLISH_RAILROAD); case STATION_WAYPOINT: return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED); case STATION_AIRPORT: return_cmd_error(STR_ERROR_MUST_DEMOLISH_AIRPORT_FIRST); case STATION_TRUCK: return_cmd_error(HasTileRoadType(tile, RTT_TRAM) ? STR_ERROR_MUST_DEMOLISH_CARGO_TRAM_STATION_FIRST : STR_ERROR_MUST_DEMOLISH_TRUCK_STATION_FIRST); case STATION_BUS: return_cmd_error(HasTileRoadType(tile, RTT_TRAM) ? STR_ERROR_MUST_DEMOLISH_PASSENGER_TRAM_STATION_FIRST : STR_ERROR_MUST_DEMOLISH_BUS_STATION_FIRST); case STATION_BUOY: return_cmd_error(STR_ERROR_BUOY_IN_THE_WAY); case STATION_DOCK: return_cmd_error(STR_ERROR_MUST_DEMOLISH_DOCK_FIRST); case STATION_OILRIG: SetDParam(1, STR_INDUSTRY_NAME_OIL_RIG); return_cmd_error(STR_ERROR_GENERIC_OBJECT_IN_THE_WAY); } } switch (GetStationType(tile)) { case STATION_RAIL: return RemoveRailStation(tile, flags); case STATION_WAYPOINT: return RemoveRailWaypoint(tile, flags); case STATION_AIRPORT: return RemoveAirport(tile, flags); case STATION_TRUCK: if (IsDriveThroughStopTile(tile) && !CanRemoveRoadWithStop(tile, flags)) { return_cmd_error(STR_ERROR_MUST_DEMOLISH_TRUCK_STATION_FIRST); } return RemoveRoadStop(tile, flags); case STATION_BUS: if (IsDriveThroughStopTile(tile) && !CanRemoveRoadWithStop(tile, flags)) { return_cmd_error(STR_ERROR_MUST_DEMOLISH_BUS_STATION_FIRST); } return RemoveRoadStop(tile, flags); case STATION_BUOY: return RemoveBuoy(tile, flags); case STATION_DOCK: return RemoveDock(tile, flags); default: break; } return CMD_ERROR; } static CommandCost TerraformTile_Station(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new) { if (_settings_game.construction.build_on_slopes && AutoslopeEnabled()) { /* TODO: If you implement newgrf callback 149 'land slope check', you have to decide what to do with it here. * TTDP does not call it. */ if (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new)) { switch (GetStationType(tile)) { case STATION_WAYPOINT: case STATION_RAIL: { DiagDirection direction = AxisToDiagDir(GetRailStationAxis(tile)); if (!AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, direction)) break; if (!AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, ReverseDiagDir(direction))) break; return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]); } case STATION_AIRPORT: return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]); case STATION_TRUCK: case STATION_BUS: { DiagDirection direction = GetRoadStopDir(tile); if (!AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, direction)) break; if (IsDriveThroughStopTile(tile)) { if (!AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, ReverseDiagDir(direction))) break; } return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]); } default: break; } } } return Command::Do(flags, tile); } /** * Get flow for a station. * @param st Station to get flow for. * @return Flow for st. */ uint FlowStat::GetShare(StationID st) const { uint32 prev = 0; for (SharesMap::const_iterator it = this->shares.begin(); it != this->shares.end(); ++it) { if (it->second == st) { return it->first - prev; } else { prev = it->first; } } return 0; } /** * Get a station a package can be routed to, but exclude the given ones. * @param excluded StationID not to be selected. * @param excluded2 Another StationID not to be selected. * @return A station ID from the shares map. */ StationID FlowStat::GetVia(StationID excluded, StationID excluded2) const { if (this->unrestricted == 0) return INVALID_STATION; assert(!this->shares.empty()); SharesMap::const_iterator it = this->shares.upper_bound(RandomRange(this->unrestricted)); assert(it != this->shares.end() && it->first <= this->unrestricted); if (it->second != excluded && it->second != excluded2) return it->second; /* We've hit one of the excluded stations. * Draw another share, from outside its range. */ uint end = it->first; uint begin = (it == this->shares.begin() ? 0 : (--it)->first); uint interval = end - begin; if (interval >= this->unrestricted) return INVALID_STATION; // Only one station in the map. uint new_max = this->unrestricted - interval; uint rand = RandomRange(new_max); SharesMap::const_iterator it2 = (rand < begin) ? this->shares.upper_bound(rand) : this->shares.upper_bound(rand + interval); assert(it2 != this->shares.end() && it2->first <= this->unrestricted); if (it2->second != excluded && it2->second != excluded2) return it2->second; /* We've hit the second excluded station. * Same as before, only a bit more complicated. */ uint end2 = it2->first; uint begin2 = (it2 == this->shares.begin() ? 0 : (--it2)->first); uint interval2 = end2 - begin2; if (interval2 >= new_max) return INVALID_STATION; // Only the two excluded stations in the map. new_max -= interval2; if (begin > begin2) { Swap(begin, begin2); Swap(end, end2); Swap(interval, interval2); } rand = RandomRange(new_max); SharesMap::const_iterator it3 = this->shares.upper_bound(this->unrestricted); if (rand < begin) { it3 = this->shares.upper_bound(rand); } else if (rand < begin2 - interval) { it3 = this->shares.upper_bound(rand + interval); } else { it3 = this->shares.upper_bound(rand + interval + interval2); } assert(it3 != this->shares.end() && it3->first <= this->unrestricted); return it3->second; } /** * Reduce all flows to minimum capacity so that they don't get in the way of * link usage statistics too much. Keep them around, though, to continue * routing any remaining cargo. */ void FlowStat::Invalidate() { assert(!this->shares.empty()); SharesMap new_shares; uint i = 0; for (SharesMap::iterator it(this->shares.begin()); it != this->shares.end(); ++it) { new_shares[++i] = it->second; if (it->first == this->unrestricted) this->unrestricted = i; } this->shares.swap(new_shares); assert(!this->shares.empty() && this->unrestricted <= (--this->shares.end())->first); } /** * Change share for specified station. By specifying INT_MIN as parameter you * can erase a share. Newly added flows will be unrestricted. * @param st Next Hop to be removed. * @param flow Share to be added or removed. */ void FlowStat::ChangeShare(StationID st, int flow) { /* We assert only before changing as afterwards the shares can actually * be empty. In that case the whole flow stat must be deleted then. */ assert(!this->shares.empty()); uint removed_shares = 0; uint added_shares = 0; uint last_share = 0; SharesMap new_shares; for (SharesMap::iterator it(this->shares.begin()); it != this->shares.end(); ++it) { if (it->second == st) { if (flow < 0) { uint share = it->first - last_share; if (flow == INT_MIN || (uint)(-flow) >= share) { removed_shares += share; if (it->first <= this->unrestricted) this->unrestricted -= share; if (flow != INT_MIN) flow += share; last_share = it->first; continue; // remove the whole share } removed_shares += (uint)(-flow); } else { added_shares += (uint)(flow); } if (it->first <= this->unrestricted) this->unrestricted += flow; /* If we don't continue above the whole flow has been added or * removed. */ flow = 0; } new_shares[it->first + added_shares - removed_shares] = it->second; last_share = it->first; } if (flow > 0) { new_shares[last_share + (uint)flow] = st; if (this->unrestricted < last_share) { this->ReleaseShare(st); } else { this->unrestricted += flow; } } this->shares.swap(new_shares); } /** * Restrict a flow by moving it to the end of the map and decreasing the amount * of unrestricted flow. * @param st Station of flow to be restricted. */ void FlowStat::RestrictShare(StationID st) { assert(!this->shares.empty()); uint flow = 0; uint last_share = 0; SharesMap new_shares; for (SharesMap::iterator it(this->shares.begin()); it != this->shares.end(); ++it) { if (flow == 0) { if (it->first > this->unrestricted) return; // Not present or already restricted. if (it->second == st) { flow = it->first - last_share; this->unrestricted -= flow; } else { new_shares[it->first] = it->second; } } else { new_shares[it->first - flow] = it->second; } last_share = it->first; } if (flow == 0) return; new_shares[last_share + flow] = st; this->shares.swap(new_shares); assert(!this->shares.empty()); } /** * Release ("unrestrict") a flow by moving it to the begin of the map and * increasing the amount of unrestricted flow. * @param st Station of flow to be released. */ void FlowStat::ReleaseShare(StationID st) { assert(!this->shares.empty()); uint flow = 0; uint next_share = 0; bool found = false; for (SharesMap::reverse_iterator it(this->shares.rbegin()); it != this->shares.rend(); ++it) { if (it->first < this->unrestricted) return; // Note: not <= as the share may hit the limit. if (found) { flow = next_share - it->first; this->unrestricted += flow; break; } else { if (it->first == this->unrestricted) return; // !found -> Limit not hit. if (it->second == st) found = true; } next_share = it->first; } if (flow == 0) return; SharesMap new_shares; new_shares[flow] = st; for (SharesMap::iterator it(this->shares.begin()); it != this->shares.end(); ++it) { if (it->second != st) { new_shares[flow + it->first] = it->second; } else { flow = 0; } } this->shares.swap(new_shares); assert(!this->shares.empty()); } /** * Scale all shares from link graph's runtime to monthly values. * @param runtime Time the link graph has been running without compression. * @pre runtime must be greater than 0 as we don't want infinite flow values. */ void FlowStat::ScaleToMonthly(uint runtime) { assert(runtime > 0); SharesMap new_shares; uint share = 0; for (SharesMap::iterator i = this->shares.begin(); i != this->shares.end(); ++i) { share = std::max(share + 1, i->first * 30 / runtime); new_shares[share] = i->second; if (this->unrestricted == i->first) this->unrestricted = share; } this->shares.swap(new_shares); } /** * Add some flow from "origin", going via "via". * @param origin Origin of the flow. * @param via Next hop. * @param flow Amount of flow to be added. */ void FlowStatMap::AddFlow(StationID origin, StationID via, uint flow) { FlowStatMap::iterator origin_it = this->find(origin); if (origin_it == this->end()) { this->insert(std::make_pair(origin, FlowStat(via, flow))); } else { origin_it->second.ChangeShare(via, flow); assert(!origin_it->second.GetShares()->empty()); } } /** * Pass on some flow, remembering it as invalid, for later subtraction from * locally consumed flow. This is necessary because we can't have negative * flows and we don't want to sort the flows before adding them up. * @param origin Origin of the flow. * @param via Next hop. * @param flow Amount of flow to be passed. */ void FlowStatMap::PassOnFlow(StationID origin, StationID via, uint flow) { FlowStatMap::iterator prev_it = this->find(origin); if (prev_it == this->end()) { FlowStat fs(via, flow); fs.AppendShare(INVALID_STATION, flow); this->insert(std::make_pair(origin, fs)); } else { prev_it->second.ChangeShare(via, flow); prev_it->second.ChangeShare(INVALID_STATION, flow); assert(!prev_it->second.GetShares()->empty()); } } /** * Subtract invalid flows from locally consumed flow. * @param self ID of own station. */ void FlowStatMap::FinalizeLocalConsumption(StationID self) { for (FlowStatMap::iterator i = this->begin(); i != this->end(); ++i) { FlowStat &fs = i->second; uint local = fs.GetShare(INVALID_STATION); if (local > INT_MAX) { // make sure it fits in an int fs.ChangeShare(self, -INT_MAX); fs.ChangeShare(INVALID_STATION, -INT_MAX); local -= INT_MAX; } fs.ChangeShare(self, -(int)local); fs.ChangeShare(INVALID_STATION, -(int)local); /* If the local share is used up there must be a share for some * remote station. */ assert(!fs.GetShares()->empty()); } } /** * Delete all flows at a station for specific cargo and destination. * @param via Remote station of flows to be deleted. * @return IDs of source stations for which the complete FlowStat, not only a * share, has been erased. */ StationIDStack FlowStatMap::DeleteFlows(StationID via) { StationIDStack ret; for (FlowStatMap::iterator f_it = this->begin(); f_it != this->end();) { FlowStat &s_flows = f_it->second; s_flows.ChangeShare(via, INT_MIN); if (s_flows.GetShares()->empty()) { ret.Push(f_it->first); this->erase(f_it++); } else { ++f_it; } } return ret; } /** * Restrict all flows at a station for specific cargo and destination. * @param via Remote station of flows to be restricted. */ void FlowStatMap::RestrictFlows(StationID via) { for (FlowStatMap::iterator it = this->begin(); it != this->end(); ++it) { it->second.RestrictShare(via); } } /** * Release all flows at a station for specific cargo and destination. * @param via Remote station of flows to be released. */ void FlowStatMap::ReleaseFlows(StationID via) { for (FlowStatMap::iterator it = this->begin(); it != this->end(); ++it) { it->second.ReleaseShare(via); } } /** * Get the sum of all flows from this FlowStatMap. * @return sum of all flows. */ uint FlowStatMap::GetFlow() const { uint ret = 0; for (FlowStatMap::const_iterator i = this->begin(); i != this->end(); ++i) { ret += (--(i->second.GetShares()->end()))->first; } return ret; } /** * Get the sum of flows via a specific station from this FlowStatMap. * @param via Remote station to look for. * @return all flows for 'via' added up. */ uint FlowStatMap::GetFlowVia(StationID via) const { uint ret = 0; for (FlowStatMap::const_iterator i = this->begin(); i != this->end(); ++i) { ret += i->second.GetShare(via); } return ret; } /** * Get the sum of flows from a specific station from this FlowStatMap. * @param from Origin station to look for. * @return all flows from 'from' added up. */ uint FlowStatMap::GetFlowFrom(StationID from) const { FlowStatMap::const_iterator i = this->find(from); if (i == this->end()) return 0; return (--(i->second.GetShares()->end()))->first; } /** * Get the flow from a specific station via a specific other station. * @param from Origin station to look for. * @param via Remote station to look for. * @return flow share originating at 'from' and going to 'via'. */ uint FlowStatMap::GetFlowFromVia(StationID from, StationID via) const { FlowStatMap::const_iterator i = this->find(from); if (i == this->end()) return 0; return i->second.GetShare(via); } extern const TileTypeProcs _tile_type_station_procs = { DrawTile_Station, // draw_tile_proc GetSlopePixelZ_Station, // get_slope_z_proc ClearTile_Station, // clear_tile_proc nullptr, // add_accepted_cargo_proc GetTileDesc_Station, // get_tile_desc_proc GetTileTrackStatus_Station, // get_tile_track_status_proc ClickTile_Station, // click_tile_proc AnimateTile_Station, // animate_tile_proc TileLoop_Station, // tile_loop_proc ChangeTileOwner_Station, // change_tile_owner_proc nullptr, // add_produced_cargo_proc VehicleEnter_Station, // vehicle_enter_tile_proc GetFoundation_Station, // get_foundation_proc TerraformTile_Station, // terraform_tile_proc };