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00012 #include "stdafx.h"
00013 #include "road_internal.h"
00014 #include "road_cmd.h"
00015 #include "landscape.h"
00016 #include "viewport_func.h"
00017 #include "cmd_helper.h"
00018 #include "command_func.h"
00019 #include "industry.h"
00020 #include "station_base.h"
00021 #include "company_base.h"
00022 #include "news_func.h"
00023 #include "error.h"
00024 #include "object.h"
00025 #include "genworld.h"
00026 #include "newgrf_debug.h"
00027 #include "newgrf_house.h"
00028 #include "newgrf_text.h"
00029 #include "newgrf_config.h"
00030 #include "autoslope.h"
00031 #include "tunnelbridge_map.h"
00032 #include "strings_func.h"
00033 #include "window_func.h"
00034 #include "string_func.h"
00035 #include "newgrf_cargo.h"
00036 #include "cheat_type.h"
00037 #include "animated_tile_func.h"
00038 #include "date_func.h"
00039 #include "subsidy_func.h"
00040 #include "core/pool_func.hpp"
00041 #include "town.h"
00042 #include "townname_func.h"
00043 #include "townname_type.h"
00044 #include "core/random_func.hpp"
00045 #include "core/backup_type.hpp"
00046 #include "depot_base.h"
00047 #include "object_map.h"
00048 #include "object_base.h"
00049 #include "ai/ai.hpp"
00050 #include "game/game.hpp"
00051
00052 #include "table/strings.h"
00053 #include "table/town_land.h"
00054
00055 TownID _new_town_id;
00056 uint32 _town_cargoes_accepted;
00057
00058
00059 TownPool _town_pool("Town");
00060 INSTANTIATE_POOL_METHODS(Town)
00061
00062 Town::~Town()
00063 {
00064 free(this->name);
00065 free(this->text);
00066
00067 if (CleaningPool()) return;
00068
00069
00070
00071 DeleteWindowById(WC_TOWN_VIEW, this->index);
00072
00073
00074 const Industry *i;
00075 FOR_ALL_INDUSTRIES(i) assert(i->town != this);
00076
00077
00078 const Object *o;
00079 FOR_ALL_OBJECTS(o) assert(o->town != this);
00080
00081
00082 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
00083 switch (GetTileType(tile)) {
00084 case MP_HOUSE:
00085 assert(GetTownIndex(tile) != this->index);
00086 break;
00087
00088 case MP_ROAD:
00089 assert(!HasTownOwnedRoad(tile) || GetTownIndex(tile) != this->index);
00090 break;
00091
00092 case MP_TUNNELBRIDGE:
00093 assert(!IsTileOwner(tile, OWNER_TOWN) || ClosestTownFromTile(tile, UINT_MAX) != this);
00094 break;
00095
00096 default:
00097 break;
00098 }
00099 }
00100
00101
00102 this->psa_list.clear();
00103
00104 DeleteSubsidyWith(ST_TOWN, this->index);
00105 DeleteNewGRFInspectWindow(GSF_FAKE_TOWNS, this->index);
00106 CargoPacket::InvalidateAllFrom(ST_TOWN, this->index);
00107 MarkWholeScreenDirty();
00108 }
00109
00110
00116 void Town::PostDestructor(size_t index)
00117 {
00118 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
00119 UpdateNearestTownForRoadTiles(false);
00120
00121
00122 Object *o;
00123 FOR_ALL_OBJECTS(o) {
00124 if (o->town == NULL) o->town = CalcClosestTownFromTile(o->location.tile, UINT_MAX);
00125 }
00126 }
00127
00131 void Town::InitializeLayout(TownLayout layout)
00132 {
00133 if (layout != TL_RANDOM) {
00134 this->layout = layout;
00135 return;
00136 }
00137
00138 this->layout = TileHash(TileX(this->xy), TileY(this->xy)) % (NUM_TLS - 1);
00139 }
00140
00145 Town *Town::GetRandom()
00146 {
00147 if (Town::GetNumItems() == 0) return NULL;
00148 int num = RandomRange((uint16)Town::GetNumItems());
00149 size_t index = MAX_UVALUE(size_t);
00150
00151 while (num >= 0) {
00152 num--;
00153 index++;
00154
00155
00156 while (!Town::IsValidID(index)) {
00157 index++;
00158 assert(index < Town::GetPoolSize());
00159 }
00160 }
00161
00162 return Town::Get(index);
00163 }
00164
00169 Money HouseSpec::GetRemovalCost() const
00170 {
00171 return (_price[PR_CLEAR_HOUSE] * this->removal_cost) >> 8;
00172 }
00173
00174
00175 static int _grow_town_result;
00176
00177
00178 enum TownGrowthResult {
00179 GROWTH_SUCCEED = -1,
00180 GROWTH_SEARCH_STOPPED = 0
00181
00182 };
00183
00184 static bool BuildTownHouse(Town *t, TileIndex tile);
00185 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout);
00186
00187 static void TownDrawHouseLift(const TileInfo *ti)
00188 {
00189 AddChildSpriteScreen(SPR_LIFT, PAL_NONE, 14, 60 - GetLiftPosition(ti->tile));
00190 }
00191
00192 typedef void TownDrawTileProc(const TileInfo *ti);
00193 static TownDrawTileProc * const _town_draw_tile_procs[1] = {
00194 TownDrawHouseLift
00195 };
00196
00202 static inline DiagDirection RandomDiagDir()
00203 {
00204 return (DiagDirection)(3 & Random());
00205 }
00206
00212 static void DrawTile_Town(TileInfo *ti)
00213 {
00214 HouseID house_id = GetHouseType(ti->tile);
00215
00216 if (house_id >= NEW_HOUSE_OFFSET) {
00217
00218
00219
00220 if (HouseSpec::Get(house_id)->grf_prop.spritegroup[0] != NULL) {
00221 DrawNewHouseTile(ti, house_id);
00222 return;
00223 } else {
00224 house_id = HouseSpec::Get(house_id)->grf_prop.subst_id;
00225 }
00226 }
00227
00228
00229 const DrawBuildingsTileStruct *dcts = &_town_draw_tile_data[house_id << 4 | TileHash2Bit(ti->x, ti->y) << 2 | GetHouseBuildingStage(ti->tile)];
00230
00231 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00232
00233 DrawGroundSprite(dcts->ground.sprite, dcts->ground.pal);
00234
00235
00236 if (IsInvisibilitySet(TO_HOUSES)) return;
00237
00238
00239 SpriteID image = dcts->building.sprite;
00240 if (image != 0) {
00241 AddSortableSpriteToDraw(image, dcts->building.pal,
00242 ti->x + dcts->subtile_x,
00243 ti->y + dcts->subtile_y,
00244 dcts->width,
00245 dcts->height,
00246 dcts->dz,
00247 ti->z,
00248 IsTransparencySet(TO_HOUSES)
00249 );
00250
00251 if (IsTransparencySet(TO_HOUSES)) return;
00252 }
00253
00254 {
00255 int proc = dcts->draw_proc - 1;
00256
00257 if (proc >= 0) _town_draw_tile_procs[proc](ti);
00258 }
00259 }
00260
00261 static int GetSlopePixelZ_Town(TileIndex tile, uint x, uint y)
00262 {
00263 return GetTileMaxPixelZ(tile);
00264 }
00265
00267 static Foundation GetFoundation_Town(TileIndex tile, Slope tileh)
00268 {
00269 HouseID hid = GetHouseType(tile);
00270
00271
00272
00273
00274
00275 if (hid >= NEW_HOUSE_OFFSET) {
00276 const HouseSpec *hs = HouseSpec::Get(hid);
00277 if (hs->grf_prop.spritegroup[0] != NULL && HasBit(hs->callback_mask, CBM_HOUSE_DRAW_FOUNDATIONS)) {
00278 uint32 callback_res = GetHouseCallback(CBID_HOUSE_DRAW_FOUNDATIONS, 0, 0, hid, Town::GetByTile(tile), tile);
00279 if (callback_res != CALLBACK_FAILED && !ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_DRAW_FOUNDATIONS, callback_res)) return FOUNDATION_NONE;
00280 }
00281 }
00282 return FlatteningFoundation(tileh);
00283 }
00284
00291 static void AnimateTile_Town(TileIndex tile)
00292 {
00293 if (GetHouseType(tile) >= NEW_HOUSE_OFFSET) {
00294 AnimateNewHouseTile(tile);
00295 return;
00296 }
00297
00298 if (_tick_counter & 3) return;
00299
00300
00301
00302
00303
00304 if (!(HouseSpec::Get(GetHouseType(tile))->building_flags & BUILDING_IS_ANIMATED)) {
00305 DeleteAnimatedTile(tile);
00306 return;
00307 }
00308
00309 if (!LiftHasDestination(tile)) {
00310 uint i;
00311
00312
00313
00314
00315
00316 do {
00317 i = RandomRange(7);
00318 } while (i == 1 || i * 6 == GetLiftPosition(tile));
00319
00320 SetLiftDestination(tile, i);
00321 }
00322
00323 int pos = GetLiftPosition(tile);
00324 int dest = GetLiftDestination(tile) * 6;
00325 pos += (pos < dest) ? 1 : -1;
00326 SetLiftPosition(tile, pos);
00327
00328 if (pos == dest) {
00329 HaltLift(tile);
00330 DeleteAnimatedTile(tile);
00331 }
00332
00333 MarkTileDirtyByTile(tile);
00334 }
00335
00342 static bool IsCloseToTown(TileIndex tile, uint dist)
00343 {
00344 const Town *t;
00345
00346 FOR_ALL_TOWNS(t) {
00347 if (DistanceManhattan(tile, t->xy) < dist) return true;
00348 }
00349 return false;
00350 }
00351
00356 void Town::UpdateVirtCoord()
00357 {
00358 Point pt = RemapCoords2(TileX(this->xy) * TILE_SIZE, TileY(this->xy) * TILE_SIZE);
00359 SetDParam(0, this->index);
00360 SetDParam(1, this->population);
00361 this->sign.UpdatePosition(pt.x, pt.y - 24 * ZOOM_LVL_BASE,
00362 _settings_client.gui.population_in_label ? STR_VIEWPORT_TOWN_POP : STR_VIEWPORT_TOWN);
00363
00364 SetWindowDirty(WC_TOWN_VIEW, this->index);
00365 }
00366
00368 void UpdateAllTownVirtCoords()
00369 {
00370 Town *t;
00371
00372 FOR_ALL_TOWNS(t) {
00373 t->UpdateVirtCoord();
00374 }
00375 }
00376
00382 static void ChangePopulation(Town *t, int mod)
00383 {
00384 t->population += mod;
00385 SetWindowDirty(WC_TOWN_VIEW, t->index);
00386 t->UpdateVirtCoord();
00387
00388 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
00389 }
00390
00396 uint32 GetWorldPopulation()
00397 {
00398 uint32 pop = 0;
00399 const Town *t;
00400
00401 FOR_ALL_TOWNS(t) pop += t->population;
00402 return pop;
00403 }
00404
00409 static void MakeSingleHouseBigger(TileIndex tile)
00410 {
00411 assert(IsTileType(tile, MP_HOUSE));
00412
00413
00414 IncHouseConstructionTick(tile);
00415 if (GetHouseConstructionTick(tile) != 0) return;
00416
00417 AnimateNewHouseConstruction(tile);
00418
00419 if (IsHouseCompleted(tile)) {
00420
00421
00422 ChangePopulation(Town::GetByTile(tile), HouseSpec::Get(GetHouseType(tile))->population);
00423 ResetHouseAge(tile);
00424 }
00425 MarkTileDirtyByTile(tile);
00426 }
00427
00432 static void MakeTownHouseBigger(TileIndex tile)
00433 {
00434 uint flags = HouseSpec::Get(GetHouseType(tile))->building_flags;
00435 if (flags & BUILDING_HAS_1_TILE) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 0));
00436 if (flags & BUILDING_2_TILES_Y) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 1));
00437 if (flags & BUILDING_2_TILES_X) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 0));
00438 if (flags & BUILDING_HAS_4_TILES) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 1));
00439 }
00440
00447 static void TileLoop_Town(TileIndex tile)
00448 {
00449 HouseID house_id = GetHouseType(tile);
00450
00451
00452
00453 if (house_id >= NEW_HOUSE_OFFSET && !NewHouseTileLoop(tile)) return;
00454
00455 if (!IsHouseCompleted(tile)) {
00456
00457 MakeTownHouseBigger(tile);
00458 return;
00459 }
00460
00461 const HouseSpec *hs = HouseSpec::Get(house_id);
00462
00463
00464 if ((hs->building_flags & BUILDING_IS_ANIMATED) &&
00465 house_id < NEW_HOUSE_OFFSET &&
00466 !LiftHasDestination(tile) &&
00467 Chance16(1, 2)) {
00468 AddAnimatedTile(tile);
00469 }
00470
00471 Town *t = Town::GetByTile(tile);
00472 uint32 r = Random();
00473
00474 StationFinder stations(TileArea(tile, 1, 1));
00475
00476 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00477 for (uint i = 0; i < 256; i++) {
00478 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, r, house_id, t, tile);
00479
00480 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00481
00482 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00483 if (cargo == CT_INVALID) continue;
00484
00485 uint amt = GB(callback, 0, 8);
00486 if (amt == 0) continue;
00487
00488 uint moved = MoveGoodsToStation(cargo, amt, ST_TOWN, t->index, stations.GetStations());
00489
00490 const CargoSpec *cs = CargoSpec::Get(cargo);
00491 t->supplied[cs->Index()].new_max += amt;
00492 t->supplied[cs->Index()].new_act += moved;
00493 }
00494 } else {
00495 if (GB(r, 0, 8) < hs->population) {
00496 uint amt = GB(r, 0, 8) / 8 + 1;
00497
00498 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00499 t->supplied[CT_PASSENGERS].new_max += amt;
00500 t->supplied[CT_PASSENGERS].new_act += MoveGoodsToStation(CT_PASSENGERS, amt, ST_TOWN, t->index, stations.GetStations());
00501 }
00502
00503 if (GB(r, 8, 8) < hs->mail_generation) {
00504 uint amt = GB(r, 8, 8) / 8 + 1;
00505
00506 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00507 t->supplied[CT_MAIL].new_max += amt;
00508 t->supplied[CT_MAIL].new_act += MoveGoodsToStation(CT_MAIL, amt, ST_TOWN, t->index, stations.GetStations());
00509 }
00510 }
00511
00512 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
00513
00514 if ((hs->building_flags & BUILDING_HAS_1_TILE) &&
00515 HasBit(t->flags, TOWN_IS_FUNDED) &&
00516 CanDeleteHouse(tile) &&
00517 GetHouseAge(tile) >= hs->minimum_life &&
00518 --t->time_until_rebuild == 0) {
00519 t->time_until_rebuild = GB(r, 16, 8) + 192;
00520
00521 ClearTownHouse(t, tile);
00522
00523
00524 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00525 }
00526
00527 cur_company.Restore();
00528 }
00529
00530 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00531 {
00532 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
00533 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00534
00535 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00536
00537 CommandCost cost(EXPENSES_CONSTRUCTION);
00538 cost.AddCost(hs->GetRemovalCost());
00539
00540 int rating = hs->remove_rating_decrease;
00541 Town *t = Town::GetByTile(tile);
00542
00543 if (Company::IsValidID(_current_company)) {
00544 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00545 SetDParam(0, t->index);
00546 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00547 }
00548 }
00549
00550 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00551 if (flags & DC_EXEC) {
00552 ClearTownHouse(t, tile);
00553 }
00554
00555 return cost;
00556 }
00557
00558 static void AddProducedCargo_Town(TileIndex tile, CargoArray &produced)
00559 {
00560 HouseID house_id = GetHouseType(tile);
00561 const HouseSpec *hs = HouseSpec::Get(house_id);
00562 Town *t = Town::GetByTile(tile);
00563
00564 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00565 for (uint i = 0; i < 256; i++) {
00566 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00567
00568 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00569
00570 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00571
00572 if (cargo == CT_INVALID) continue;
00573 produced[cargo]++;
00574 }
00575 } else {
00576 if (hs->population > 0) {
00577 produced[CT_PASSENGERS]++;
00578 }
00579 if (hs->mail_generation > 0) {
00580 produced[CT_MAIL]++;
00581 }
00582 }
00583 }
00584
00585 static inline void AddAcceptedCargoSetMask(CargoID cargo, uint amount, CargoArray &acceptance, uint32 *always_accepted)
00586 {
00587 if (cargo == CT_INVALID || amount == 0) return;
00588 acceptance[cargo] += amount;
00589 SetBit(*always_accepted, cargo);
00590 }
00591
00592 static void AddAcceptedCargo_Town(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00593 {
00594 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00595 CargoID accepts[3];
00596
00597
00598 for (uint8 i = 0; i < lengthof(accepts); i++) {
00599 accepts[i] = hs->accepts_cargo[i];
00600 }
00601
00602
00603 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00604 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00605 if (callback != CALLBACK_FAILED) {
00606
00607 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grf_prop.grffile);
00608 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grf_prop.grffile);
00609 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grf_prop.grffile);
00610 }
00611 }
00612
00613
00614 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00615 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00616 if (callback != CALLBACK_FAILED) {
00617 AddAcceptedCargoSetMask(accepts[0], GB(callback, 0, 4), acceptance, always_accepted);
00618 AddAcceptedCargoSetMask(accepts[1], GB(callback, 4, 4), acceptance, always_accepted);
00619 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00620
00621 AddAcceptedCargoSetMask(CT_FOOD, GB(callback, 8, 4), acceptance, always_accepted);
00622 } else {
00623 AddAcceptedCargoSetMask(accepts[2], GB(callback, 8, 4), acceptance, always_accepted);
00624 }
00625 return;
00626 }
00627 }
00628
00629
00630 for (uint8 i = 0; i < lengthof(accepts); i++) {
00631 AddAcceptedCargoSetMask(accepts[i], hs->cargo_acceptance[i], acceptance, always_accepted);
00632 }
00633 }
00634
00635 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00636 {
00637 const HouseID house = GetHouseType(tile);
00638 const HouseSpec *hs = HouseSpec::Get(house);
00639 bool house_completed = IsHouseCompleted(tile);
00640
00641 td->str = hs->building_name;
00642
00643 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, Town::GetByTile(tile), tile);
00644 if (callback_res != CALLBACK_FAILED && callback_res != 0x400) {
00645 if (callback_res > 0x400) {
00646 ErrorUnknownCallbackResult(hs->grf_prop.grffile->grfid, CBID_HOUSE_CUSTOM_NAME, callback_res);
00647 } else {
00648 StringID new_name = GetGRFStringID(hs->grf_prop.grffile->grfid, 0xD000 + callback_res);
00649 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00650 td->str = new_name;
00651 }
00652 }
00653 }
00654
00655 if (!house_completed) {
00656 SetDParamX(td->dparam, 0, td->str);
00657 td->str = STR_LAI_TOWN_INDUSTRY_DESCRIPTION_UNDER_CONSTRUCTION;
00658 }
00659
00660 if (hs->grf_prop.grffile != NULL) {
00661 const GRFConfig *gc = GetGRFConfig(hs->grf_prop.grffile->grfid);
00662 td->grf = gc->GetName();
00663 }
00664
00665 td->owner[0] = OWNER_TOWN;
00666 }
00667
00668 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00669 {
00670
00671 return 0;
00672 }
00673
00674 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00675 {
00676
00677 }
00678
00682 void UpdateTownCargoTotal(Town *t)
00683 {
00684 t->cargo_accepted_total = 0;
00685
00686 const TileArea &area = t->cargo_accepted.GetArea();
00687 TILE_AREA_LOOP(tile, area) {
00688 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00689 t->cargo_accepted_total |= t->cargo_accepted[tile];
00690 }
00691 }
00692 }
00693
00700 static void UpdateTownCargoes(Town *t, TileIndex start, bool update_total = true)
00701 {
00702 CargoArray accepted, produced;
00703 uint32 dummy;
00704
00705
00706
00707
00708 TileArea area = AcceptanceMatrix::GetAreaForTile(start, 1);
00709 TILE_AREA_LOOP(tile, area) {
00710 if (!IsTileType(tile, MP_HOUSE) || GetTownIndex(tile) != t->index) continue;
00711
00712 AddAcceptedCargo_Town(tile, accepted, &dummy);
00713 AddProducedCargo_Town(tile, produced);
00714 }
00715
00716
00717 uint32 acc = 0;
00718 for (uint cid = 0; cid < NUM_CARGO; cid++) {
00719 if (accepted[cid] >= 8) SetBit(acc, cid);
00720 if (produced[cid] > 0) SetBit(t->cargo_produced, cid);
00721 }
00722 t->cargo_accepted[start] = acc;
00723
00724 if (update_total) UpdateTownCargoTotal(t);
00725 }
00726
00730 void UpdateTownCargoes(Town *t)
00731 {
00732 t->cargo_produced = 0;
00733
00734 const TileArea &area = t->cargo_accepted.GetArea();
00735 if (area.tile == INVALID_TILE) return;
00736
00737
00738 TILE_AREA_LOOP(tile, area) {
00739 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00740 UpdateTownCargoes(t, tile, false);
00741 }
00742 }
00743
00744
00745 UpdateTownCargoTotal(t);
00746 }
00747
00749 void UpdateTownCargoBitmap()
00750 {
00751 Town *town;
00752 _town_cargoes_accepted = 0;
00753
00754 FOR_ALL_TOWNS(town) {
00755 _town_cargoes_accepted |= town->cargo_accepted_total;
00756 }
00757 }
00758
00759 static bool GrowTown(Town *t);
00760
00761 static void TownTickHandler(Town *t)
00762 {
00763 if (HasBit(t->flags, TOWN_IS_FUNDED)) {
00764 int i = t->grow_counter - 1;
00765 if (i < 0) {
00766 if (GrowTown(t)) {
00767 i = t->growth_rate & (~TOWN_GROW_RATE_CUSTOM);
00768 } else {
00769 i = 0;
00770 }
00771 }
00772 t->grow_counter = i;
00773 }
00774
00775 UpdateTownRadius(t);
00776 }
00777
00778 void OnTick_Town()
00779 {
00780 if (_game_mode == GM_EDITOR) return;
00781
00782 Town *t;
00783 FOR_ALL_TOWNS(t) {
00784
00785 if ((_tick_counter + t->index) % TOWN_GROWTH_TICKS == 0) {
00786 TownTickHandler(t);
00787 }
00788 }
00789 }
00790
00799 static RoadBits GetTownRoadBits(TileIndex tile)
00800 {
00801 if (IsRoadDepotTile(tile) || IsStandardRoadStopTile(tile)) return ROAD_NONE;
00802
00803 return GetAnyRoadBits(tile, ROADTYPE_ROAD, true);
00804 }
00805
00816 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00817 {
00818 if (!IsValidTile(tile)) return false;
00819
00820
00821 const TileIndexDiff tid_lt[3] = {
00822 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00823 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00824 TileOffsByDiagDir(ReverseDiagDir(dir)),
00825 };
00826
00827 dist_multi = (dist_multi + 1) * 4;
00828 for (uint pos = 4; pos < dist_multi; pos++) {
00829
00830 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00831
00832
00833 if (pos & 2) cur += tid_lt[2];
00834
00835
00836 if (IsValidTile(tile + cur) &&
00837 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00838 }
00839 return false;
00840 }
00841
00850 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00851 {
00852 if (DistanceFromEdge(tile) == 0) return false;
00853
00854
00855 if (GetTownRoadBits(tile) == ROAD_NONE) {
00856
00857
00858
00859 if (DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_Y : ROAD_X), 0, DC_AUTO, CMD_BUILD_ROAD).Failed() &&
00860 DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR).Failed()) {
00861 return false;
00862 }
00863 }
00864
00865 Slope cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile) : GetTileSlope(tile);
00866 bool ret = !IsNeighborRoadTile(tile, dir, t->layout == TL_ORIGINAL ? 1 : 2);
00867 if (cur_slope == SLOPE_FLAT) return ret;
00868
00869
00870
00871 Slope desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00872 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00873 if (Chance16(1, 8)) {
00874 CommandCost res = CMD_ERROR;
00875 if (!_generating_world && Chance16(1, 10)) {
00876
00877 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00878 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00879 }
00880 if (res.Failed() && Chance16(1, 3)) {
00881
00882 return ret;
00883 }
00884 }
00885 return false;
00886 }
00887 return ret;
00888 }
00889
00890 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00891 {
00892 assert(tile < MapSize());
00893
00894 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00895 if (r.Failed() || r.GetCost() >= (_price[PR_TERRAFORM] + 2) * 8) return false;
00896 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00897 return true;
00898 }
00899
00900 static void LevelTownLand(TileIndex tile)
00901 {
00902 assert(tile < MapSize());
00903
00904
00905 if (IsTileType(tile, MP_HOUSE)) return;
00906 Slope tileh = GetTileSlope(tile);
00907 if (tileh == SLOPE_FLAT) return;
00908
00909
00910 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00911 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00912 }
00913 }
00914
00924 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00925 {
00926
00927 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00928 RoadBits rcmd = ROAD_NONE;
00929
00930 switch (t->layout) {
00931 default: NOT_REACHED();
00932
00933 case TL_2X2_GRID:
00934 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00935 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00936 break;
00937
00938 case TL_3X3_GRID:
00939 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00940 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00941 break;
00942 }
00943
00944
00945 if (rcmd != ROAD_ALL) return rcmd;
00946
00947 RoadBits rb_template;
00948
00949 switch (GetTileSlope(tile)) {
00950 default: rb_template = ROAD_ALL; break;
00951 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00952 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00953 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00954 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00955 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00956 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00957 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00958 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00959 case SLOPE_STEEP_W:
00960 case SLOPE_STEEP_S:
00961 case SLOPE_STEEP_E:
00962 case SLOPE_STEEP_N:
00963 rb_template = ROAD_NONE;
00964 break;
00965 }
00966
00967
00968 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00969
00970 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00971 }
00972
00983 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00984 {
00985
00986 if (DistanceFromEdge(tile) == 0) return false;
00987
00988 uint counter = 0;
00989
00990
00991 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00992
00993
00994
00995 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
00996 case MP_HOUSE:
00997 case MP_VOID:
00998 counter++;
00999 break;
01000
01001 default:
01002 break;
01003 }
01004
01005
01006 if (counter >= 3) {
01007 if (BuildTownHouse(t, tile)) {
01008 _grow_town_result = GROWTH_SUCCEED;
01009 return true;
01010 }
01011 return false;
01012 }
01013 }
01014 return false;
01015 }
01016
01025 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
01026 {
01027 if (DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD).Succeeded()) {
01028 _grow_town_result = GROWTH_SUCCEED;
01029 return true;
01030 }
01031 return false;
01032 }
01033
01044 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
01045 {
01046 assert(bridge_dir < DIAGDIR_END);
01047
01048 const Slope slope = GetTileSlope(tile);
01049
01050
01051
01052
01053 if (slope != SLOPE_FLAT && slope & InclinedSlope(bridge_dir)) return false;
01054
01055
01056 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
01057
01058
01059 uint8 bridge_length = 0;
01060 TileIndex bridge_tile = tile;
01061
01062 const int delta = TileOffsByDiagDir(bridge_dir);
01063
01064 if (slope == SLOPE_FLAT) {
01065
01066 do {
01067 if (bridge_length++ >= 4) {
01068
01069 return false;
01070 }
01071 bridge_tile += delta;
01072 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile) && !IsSea(bridge_tile));
01073 } else {
01074 do {
01075 if (bridge_length++ >= 11) {
01076
01077 return false;
01078 }
01079 bridge_tile += delta;
01080 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile));
01081 }
01082
01083
01084 if (bridge_length == 1) return false;
01085
01086 for (uint8 times = 0; times <= 22; times++) {
01087 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
01088
01089
01090 if (DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE).Succeeded()) {
01091 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE);
01092 _grow_town_result = GROWTH_SUCCEED;
01093 return true;
01094 }
01095 }
01096
01097 return false;
01098 }
01099
01117 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01118 {
01119 RoadBits rcmd = ROAD_NONE;
01120 TileIndex tile = *tile_ptr;
01121
01122 assert(tile < MapSize());
01123
01124 if (cur_rb == ROAD_NONE) {
01125
01126
01127 _grow_town_result = GROWTH_SEARCH_STOPPED;
01128
01129 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01130 if (!_settings_game.economy.allow_town_level_crossings && IsTileType(tile, MP_RAILWAY)) return;
01131
01132
01133 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01134
01135
01136 switch (t1->layout) {
01137 default: NOT_REACHED();
01138
01139 case TL_3X3_GRID:
01140 case TL_2X2_GRID:
01141 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01142 if (rcmd == ROAD_NONE) return;
01143 break;
01144
01145 case TL_BETTER_ROADS:
01146 case TL_ORIGINAL:
01147 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01148
01149 DiagDirection source_dir = ReverseDiagDir(target_dir);
01150
01151 if (Chance16(1, 4)) {
01152
01153 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01154 }
01155
01156 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01157
01158
01159 if (target_dir != ReverseDiagDir(source_dir)) return;
01160
01161
01162 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01163 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01164 return;
01165 }
01166
01167
01168
01169 }
01170
01171 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01172 break;
01173 }
01174
01175 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01176
01177
01178
01179 _grow_town_result = GROWTH_SEARCH_STOPPED;
01180
01181 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01182
01183 switch (t1->layout) {
01184 default: NOT_REACHED();
01185
01186 case TL_3X3_GRID:
01187 case TL_2X2_GRID:
01188 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01189 break;
01190
01191 case TL_BETTER_ROADS:
01192 case TL_ORIGINAL:
01193 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01194 break;
01195 }
01196 } else {
01197 bool allow_house = true;
01198
01199
01200
01201 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01202 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD && (target_dir != DIAGDIR_END || Chance16(1, 2))) {
01203 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01204 }
01205 return;
01206 }
01207
01208
01209
01210 target_dir = RandomDiagDir();
01211 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01212
01213
01214 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01215
01216
01217 if (HasTileWaterGround(house_tile)) return;
01218
01219 if (!IsValidTile(house_tile)) return;
01220
01221 if (_settings_game.economy.allow_town_roads || _generating_world) {
01222 switch (t1->layout) {
01223 default: NOT_REACHED();
01224
01225 case TL_3X3_GRID:
01226 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01227
01228
01229 case TL_2X2_GRID:
01230 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01231 allow_house = (rcmd == ROAD_NONE);
01232 break;
01233
01234 case TL_BETTER_ROADS:
01235 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01236
01237
01238 case TL_ORIGINAL:
01239
01240
01241 rcmd = DiagDirToRoadBits(target_dir);
01242 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01243 break;
01244 }
01245 }
01246
01247 if (allow_house) {
01248
01249 if (!IsTileType(house_tile, MP_HOUSE)) {
01250
01251 if (Chance16(1, 6)) LevelTownLand(house_tile);
01252
01253
01254
01255 if (BuildTownHouse(t1, house_tile)) {
01256 _grow_town_result = GROWTH_SUCCEED;
01257 }
01258 }
01259 return;
01260 }
01261
01262 _grow_town_result = GROWTH_SEARCH_STOPPED;
01263 }
01264
01265
01266 if (HasTileWaterGround(tile)) return;
01267
01268
01269 rcmd = CleanUpRoadBits(tile, rcmd);
01270 if (rcmd == ROAD_NONE) return;
01271
01272
01273
01274
01275 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01276
01277 GrowTownWithRoad(t1, tile, rcmd);
01278 }
01279
01286 static int GrowTownAtRoad(Town *t, TileIndex tile)
01287 {
01288
01289
01290
01291 DiagDirection target_dir = DIAGDIR_END;
01292
01293 assert(tile < MapSize());
01294
01295
01296
01297
01298 switch (t->layout) {
01299 case TL_BETTER_ROADS:
01300 _grow_town_result = 10 + t->num_houses * 2 / 9;
01301 break;
01302
01303 case TL_3X3_GRID:
01304 case TL_2X2_GRID:
01305 _grow_town_result = 10 + t->num_houses * 1 / 9;
01306 break;
01307
01308 default:
01309 _grow_town_result = 10 + t->num_houses * 4 / 9;
01310 break;
01311 }
01312
01313 do {
01314 RoadBits cur_rb = GetTownRoadBits(tile);
01315
01316
01317 GrowTownInTile(&tile, cur_rb, target_dir, t);
01318
01319
01320
01321 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01322 if (cur_rb == ROAD_NONE) {
01323 return _grow_town_result;
01324 }
01325
01326 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01327
01328 target_dir = ReverseDiagDir(GetTunnelBridgeDirection(tile));
01329 } else {
01330
01331
01332 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01333 }
01334 tile = TileAddByDiagDir(tile, target_dir);
01335
01336 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01337
01338 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && Town::GetByTile(tile) != t) {
01339 _grow_town_result = GROWTH_SUCCEED;
01340 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01341
01342
01343 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01344 SetTownIndex(tile, t->index);
01345 }
01346 }
01347
01348
01349 } while (--_grow_town_result >= 0);
01350
01351 return (_grow_town_result == -2);
01352 }
01353
01361 static RoadBits GenRandomRoadBits()
01362 {
01363 uint32 r = Random();
01364 uint a = GB(r, 0, 2);
01365 uint b = GB(r, 8, 2);
01366 if (a == b) b ^= 2;
01367 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01368 }
01369
01375 static bool GrowTown(Town *t)
01376 {
01377 static const TileIndexDiffC _town_coord_mod[] = {
01378 {-1, 0},
01379 { 1, 1},
01380 { 1, -1},
01381 {-1, -1},
01382 {-1, 0},
01383 { 0, 2},
01384 { 2, 0},
01385 { 0, -2},
01386 {-1, -1},
01387 {-2, 2},
01388 { 2, 2},
01389 { 2, -2},
01390 { 0, 0}
01391 };
01392
01393
01394 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01395
01396 TileIndex tile = t->xy;
01397
01398
01399 const TileIndexDiffC *ptr;
01400 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01401 if (GetTownRoadBits(tile) != ROAD_NONE) {
01402 int r = GrowTownAtRoad(t, tile);
01403 cur_company.Restore();
01404 return r != 0;
01405 }
01406 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01407 }
01408
01409
01410
01411 if (_settings_game.economy.allow_town_roads || _generating_world) {
01412 tile = t->xy;
01413 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01414
01415 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile) == SLOPE_FLAT) {
01416 if (DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded()) {
01417 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01418 cur_company.Restore();
01419 return true;
01420 }
01421 }
01422 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01423 }
01424 }
01425
01426 cur_company.Restore();
01427 return false;
01428 }
01429
01430 void UpdateTownRadius(Town *t)
01431 {
01432 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01433 { 4, 0, 0, 0, 0},
01434 { 16, 0, 0, 0, 0},
01435 { 25, 0, 0, 0, 0},
01436 { 36, 0, 0, 0, 0},
01437 { 49, 0, 4, 0, 0},
01438 { 64, 0, 4, 0, 0},
01439 { 64, 0, 9, 0, 1},
01440 { 64, 0, 9, 0, 4},
01441 { 64, 0, 16, 0, 4},
01442 { 81, 0, 16, 0, 4},
01443 { 81, 0, 16, 0, 4},
01444 { 81, 0, 25, 0, 9},
01445 { 81, 36, 25, 0, 9},
01446 { 81, 36, 25, 16, 9},
01447 { 81, 49, 0, 25, 9},
01448 { 81, 64, 0, 25, 9},
01449 { 81, 64, 0, 36, 9},
01450 { 81, 64, 0, 36, 16},
01451 {100, 81, 0, 49, 16},
01452 {100, 81, 0, 49, 25},
01453 {121, 81, 0, 49, 25},
01454 {121, 81, 0, 49, 25},
01455 {121, 81, 0, 49, 36},
01456 };
01457
01458 if (t->num_houses < 92) {
01459 memcpy(t->squared_town_zone_radius, _town_squared_town_zone_radius_data[t->num_houses / 4], sizeof(t->squared_town_zone_radius));
01460 } else {
01461 int mass = t->num_houses / 8;
01462
01463
01464
01465 t->squared_town_zone_radius[0] = mass * 15 - 40;
01466 t->squared_town_zone_radius[1] = mass * 9 - 15;
01467 t->squared_town_zone_radius[2] = 0;
01468 t->squared_town_zone_radius[3] = mass * 5 - 5;
01469 t->squared_town_zone_radius[4] = mass * 3 + 5;
01470 }
01471 }
01472
01473 void UpdateTownMaxPass(Town *t)
01474 {
01475 t->supplied[CT_PASSENGERS].old_max = t->population >> 3;
01476 t->supplied[CT_MAIL].old_max = t->population >> 4;
01477 }
01478
01490 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
01491 {
01492 t->xy = tile;
01493 t->num_houses = 0;
01494 t->time_until_rebuild = 10;
01495 UpdateTownRadius(t);
01496 t->flags = 0;
01497 t->population = 0;
01498 t->grow_counter = 0;
01499 t->growth_rate = 250;
01500
01501
01502 switch (_settings_game.game_creation.landscape) {
01503 case LT_ARCTIC:
01504 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
01505 break;
01506
01507 case LT_TROPIC:
01508 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
01509 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
01510 break;
01511 }
01512
01513 t->fund_buildings_months = 0;
01514
01515 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01516
01517 t->have_ratings = 0;
01518 t->exclusivity = INVALID_COMPANY;
01519 t->exclusive_counter = 0;
01520 t->statues = 0;
01521
01522 extern int _nb_orig_names;
01523 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01524
01525 t->townnamegrfid = 0;
01526 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01527 } else {
01528
01529 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01530 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01531 }
01532 t->townnameparts = townnameparts;
01533
01534 t->UpdateVirtCoord();
01535 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01536
01537 t->InitializeLayout(layout);
01538
01539 t->larger_town = city;
01540
01541 int x = (int)size * 16 + 3;
01542 if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
01543
01544 if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;
01545
01546 t->num_houses += x;
01547 UpdateTownRadius(t);
01548
01549 int i = x * 4;
01550 do {
01551 GrowTown(t);
01552 } while (--i);
01553
01554 t->num_houses -= x;
01555 UpdateTownRadius(t);
01556 UpdateTownMaxPass(t);
01557 UpdateAirportsNoise();
01558 }
01559
01565 static CommandCost TownCanBePlacedHere(TileIndex tile)
01566 {
01567
01568 if (DistanceFromEdge(tile) < 12) {
01569 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB);
01570 }
01571
01572
01573 if (IsCloseToTown(tile, 20)) {
01574 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN);
01575 }
01576
01577
01578 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile) != SLOPE_FLAT) {
01579 return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
01580 }
01581
01582 return CommandCost(EXPENSES_OTHER);
01583 }
01584
01590 static bool IsUniqueTownName(const char *name)
01591 {
01592 const Town *t;
01593
01594 FOR_ALL_TOWNS(t) {
01595 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
01596 }
01597
01598 return true;
01599 }
01600
01613 CommandCost CmdFoundTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01614 {
01615 TownSize size = Extract<TownSize, 0, 2>(p1);
01616 bool city = HasBit(p1, 2);
01617 TownLayout layout = Extract<TownLayout, 3, 3>(p1);
01618 TownNameParams par(_settings_game.game_creation.town_name);
01619 bool random = HasBit(p1, 6);
01620 uint32 townnameparts = p2;
01621
01622 if (size >= TSZ_END) return CMD_ERROR;
01623 if (layout >= NUM_TLS) return CMD_ERROR;
01624
01625
01626 if (_game_mode != GM_EDITOR) {
01627 if (_settings_game.economy.found_town == TF_FORBIDDEN) return CMD_ERROR;
01628 if (size == TSZ_LARGE) return CMD_ERROR;
01629 if (random) return CMD_ERROR;
01630 if (_settings_game.economy.found_town != TF_CUSTOM_LAYOUT && layout != _settings_game.economy.town_layout) {
01631 return CMD_ERROR;
01632 }
01633 }
01634
01635 if (StrEmpty(text)) {
01636
01637 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01638 } else {
01639
01640 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
01641 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01642 }
01643
01644
01645 if (!Town::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_TOWNS);
01646
01647 if (!random) {
01648 CommandCost ret = TownCanBePlacedHere(tile);
01649 if (ret.Failed()) return ret;
01650 }
01651
01652 static const byte price_mult[][TSZ_RANDOM + 1] = {{ 15, 25, 40, 25 }, { 20, 35, 55, 35 }};
01653
01654 assert_compile(lengthof(price_mult[0]) == 4);
01655
01656 CommandCost cost(EXPENSES_OTHER, _price[PR_BUILD_TOWN]);
01657 byte mult = price_mult[city][size];
01658
01659 cost.MultiplyCost(mult);
01660
01661
01662 if (flags & DC_EXEC) {
01663 if (cost.GetCost() > GetAvailableMoneyForCommand()) {
01664 _additional_cash_required = cost.GetCost();
01665 return CommandCost(EXPENSES_OTHER);
01666 }
01667
01668 _generating_world = true;
01669 UpdateNearestTownForRoadTiles(true);
01670 Town *t;
01671 if (random) {
01672 t = CreateRandomTown(20, townnameparts, size, city, layout);
01673 if (t == NULL) {
01674 cost = CommandCost(STR_ERROR_NO_SPACE_FOR_TOWN);
01675 } else {
01676 _new_town_id = t->index;
01677 }
01678 } else {
01679 t = new Town(tile);
01680 DoCreateTown(t, tile, townnameparts, size, city, layout, true);
01681 }
01682 UpdateNearestTownForRoadTiles(false);
01683 _generating_world = false;
01684
01685 if (t != NULL && !StrEmpty(text)) {
01686 t->name = strdup(text);
01687 t->UpdateVirtCoord();
01688 }
01689
01690 if (_game_mode != GM_EDITOR) {
01691
01692 assert(!random);
01693 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
01694 SetDParam(0, _current_company);
01695 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
01696
01697 char *cn = strdup(company_name);
01698 SetDParamStr(0, cn);
01699 SetDParam(1, t->index);
01700
01701 AddNewsItem(STR_NEWS_NEW_TOWN, NS_INDUSTRY_OPEN, NR_TILE, tile, NR_NONE, UINT32_MAX, cn);
01702 AI::BroadcastNewEvent(new ScriptEventTownFounded(t->index));
01703 Game::NewEvent(new ScriptEventTownFounded(t->index));
01704 }
01705 }
01706 return cost;
01707 }
01708
01718 static TileIndex AlignTileToGrid(TileIndex tile, TownLayout layout)
01719 {
01720 switch (layout) {
01721 case TL_2X2_GRID: return TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01722 case TL_3X3_GRID: return TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01723 default: return tile;
01724 }
01725 }
01726
01736 static bool IsTileAlignedToGrid(TileIndex tile, TownLayout layout)
01737 {
01738 switch (layout) {
01739 case TL_2X2_GRID: return TileX(tile) % 3 == 0 && TileY(tile) % 3 == 0;
01740 case TL_3X3_GRID: return TileX(tile) % 4 == 0 && TileY(tile) % 4 == 0;
01741 default: return true;
01742 }
01743 }
01744
01748 struct SpotData {
01749 TileIndex tile;
01750 uint max_dist;
01751 TownLayout layout;
01752 };
01753
01770 static bool FindFurthestFromWater(TileIndex tile, void *user_data)
01771 {
01772 SpotData *sp = (SpotData*)user_data;
01773 uint dist = GetClosestWaterDistance(tile, true);
01774
01775 if (IsTileType(tile, MP_CLEAR) &&
01776 GetTileSlope(tile) == SLOPE_FLAT &&
01777 IsTileAlignedToGrid(tile, sp->layout) &&
01778 dist > sp->max_dist) {
01779 sp->tile = tile;
01780 sp->max_dist = dist;
01781 }
01782
01783 return false;
01784 }
01785
01792 static bool FindNearestEmptyLand(TileIndex tile, void *user_data)
01793 {
01794 return IsTileType(tile, MP_CLEAR);
01795 }
01796
01809 static TileIndex FindNearestGoodCoastalTownSpot(TileIndex tile, TownLayout layout)
01810 {
01811 SpotData sp = { INVALID_TILE, 0, layout };
01812
01813 TileIndex coast = tile;
01814 if (CircularTileSearch(&coast, 40, FindNearestEmptyLand, NULL)) {
01815 CircularTileSearch(&coast, 10, FindFurthestFromWater, &sp);
01816 return sp.tile;
01817 }
01818
01819
01820 return INVALID_TILE;
01821 }
01822
01823 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01824 {
01825 if (!Town::CanAllocateItem()) return NULL;
01826
01827 do {
01828
01829 TileIndex tile = AlignTileToGrid(RandomTile(), layout);
01830
01831
01832
01833 if (IsTileType(tile, MP_WATER)) {
01834 tile = FindNearestGoodCoastalTownSpot(tile, layout);
01835 if (tile == INVALID_TILE) continue;
01836 }
01837
01838
01839 if (TownCanBePlacedHere(tile).Failed()) continue;
01840
01841
01842 Town *t = new Town(tile);
01843
01844 DoCreateTown(t, tile, townnameparts, size, city, layout, false);
01845
01846
01847
01848 if (t->population > 0) return t;
01849 DoCommand(t->xy, t->index, 0, DC_EXEC, CMD_DELETE_TOWN);
01850
01851
01852
01853
01854
01855 assert(Town::CanAllocateItem());
01856 } while (--attempts != 0);
01857
01858 return NULL;
01859 }
01860
01861 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01862
01870 bool GenerateTowns(TownLayout layout)
01871 {
01872 uint current_number = 0;
01873 uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_towns : 0;
01874 uint total = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01875 uint32 townnameparts;
01876
01877 SetGeneratingWorldProgress(GWP_TOWN, total);
01878
01879
01880
01881
01882 do {
01883 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01884 IncreaseGeneratingWorldProgress(GWP_TOWN);
01885
01886 if (!GenerateTownName(&townnameparts)) continue;
01887
01888 if (CreateRandomTown(20, townnameparts, TSZ_RANDOM, city, layout) != NULL) current_number++;
01889 } while (--total);
01890
01891 if (current_number != 0) return true;
01892
01893
01894
01895 if (GenerateTownName(&townnameparts) &&
01896 CreateRandomTown(10000, townnameparts, TSZ_RANDOM, _settings_game.economy.larger_towns != 0, layout) != NULL) {
01897 return true;
01898 }
01899
01900
01901 if (Town::GetNumItems() == 0 && _game_mode != GM_EDITOR) {
01902 ShowErrorMessage(STR_ERROR_COULD_NOT_CREATE_TOWN, INVALID_STRING_ID, WL_CRITICAL);
01903 }
01904
01905 return false;
01906 }
01907
01908
01915 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01916 {
01917 uint dist = DistanceSquare(tile, t->xy);
01918
01919 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01920
01921 HouseZonesBits smallest = HZB_TOWN_EDGE;
01922 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01923 if (dist < t->squared_town_zone_radius[i]) smallest = i;
01924 }
01925
01926 return smallest;
01927 }
01928
01939 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01940 {
01941 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01942
01943 assert(cc.Succeeded());
01944
01945 IncreaseBuildingCount(t, type);
01946 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01947 if (HouseSpec::Get(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01948
01949 MarkTileDirtyByTile(tile);
01950 }
01951
01952
01963 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01964 {
01965 BuildingFlags size = HouseSpec::Get(type)->building_flags;
01966
01967 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01968 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01969 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01970 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01971 }
01972
01973
01982 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01983 {
01984
01985 Slope slope = GetTileSlope(tile);
01986 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01987
01988
01989 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01990
01991
01992 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01993
01994
01995 return DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded();
01996 }
01997
01998
02008 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, int z, bool noslope)
02009 {
02010 if (!CanBuildHouseHere(tile, town, noslope)) return false;
02011
02012
02013 if (GetTileMaxZ(tile) != z) return false;
02014
02015 return true;
02016 }
02017
02018
02028 static bool CheckFree2x2Area(TileIndex tile, TownID town, int z, bool noslope)
02029 {
02030
02031 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02032
02033 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
02034 tile += TileOffsByDiagDir(d);
02035 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02036 }
02037
02038 return true;
02039 }
02040
02041
02049 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
02050 {
02051
02052 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02053
02054 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02055
02056 switch (t->layout) {
02057 case TL_2X2_GRID:
02058 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
02059 break;
02060
02061 case TL_3X3_GRID:
02062 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
02063 break;
02064
02065 default:
02066 break;
02067 }
02068
02069 return true;
02070 }
02071
02072
02080 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
02081 {
02082
02083 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02084
02085
02086 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02087
02088 switch (t->layout) {
02089 case TL_2X2_GRID:
02090 grid_pos.x %= 3;
02091 grid_pos.y %= 3;
02092 if ((grid_pos.x != 2 && grid_pos.x != -1) ||
02093 (grid_pos.y != 2 && grid_pos.y != -1)) return false;
02094 break;
02095
02096 case TL_3X3_GRID:
02097 if ((grid_pos.x & 3) < 2 || (grid_pos.y & 3) < 2) return false;
02098 break;
02099
02100 default:
02101 break;
02102 }
02103
02104 return true;
02105 }
02106
02107
02117 static bool CheckTownBuild2House(TileIndex *tile, Town *t, int maxz, bool noslope, DiagDirection second)
02118 {
02119
02120
02121 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
02122 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
02123
02124 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
02125 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
02126 *tile = tile2;
02127 return true;
02128 }
02129
02130 return false;
02131 }
02132
02133
02142 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, int maxz, bool noslope)
02143 {
02144 TileIndex tile2 = *tile;
02145
02146 for (DiagDirection d = DIAGDIR_SE;; d++) {
02147 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
02148 *tile = tile2;
02149 return true;
02150 }
02151 if (d == DIAGDIR_END) break;
02152 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
02153 }
02154
02155 return false;
02156 }
02157
02158
02165 static bool BuildTownHouse(Town *t, TileIndex tile)
02166 {
02167
02168 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
02169
02170
02171 if (!CanBuildHouseHere(tile, t->index, false)) return false;
02172
02173 int z;
02174 Slope slope = GetTileSlope(tile, &z);
02175
02176
02177
02178 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
02179
02180
02181 int land = _settings_game.game_creation.landscape;
02182 if (land == LT_ARCTIC && z >= HighestSnowLine()) land = -1;
02183
02184 uint bitmask = (1 << rad) + (1 << (land + 12));
02185
02186
02187
02188
02189 HouseID houses[HOUSE_MAX];
02190 uint num = 0;
02191 uint probs[HOUSE_MAX];
02192 uint probability_max = 0;
02193
02194
02195 for (uint i = 0; i < HOUSE_MAX; i++) {
02196 const HouseSpec *hs = HouseSpec::Get(i);
02197
02198
02199 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled || hs->grf_prop.override != INVALID_HOUSE_ID) continue;
02200
02201
02202 if (hs->class_id != HOUSE_NO_CLASS) {
02203
02204 if (t->building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
02205 } else {
02206
02207 if (t->building_counts.id_count[i] == UINT16_MAX) continue;
02208 }
02209
02210
02211 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
02212 probability_max += cur_prob;
02213 probs[num] = cur_prob;
02214 houses[num++] = (HouseID)i;
02215 }
02216
02217 int maxz = GetTileMaxZ(tile);
02218 TileIndex baseTile = tile;
02219
02220 while (probability_max > 0) {
02221
02222
02223
02224
02225
02226 tile = baseTile;
02227
02228 uint r = RandomRange(probability_max);
02229 uint i;
02230 for (i = 0; i < num; i++) {
02231 if (probs[i] > r) break;
02232 r -= probs[i];
02233 }
02234
02235 HouseID house = houses[i];
02236 probability_max -= probs[i];
02237
02238
02239 num--;
02240 houses[i] = houses[num];
02241 probs[i] = probs[num];
02242
02243 const HouseSpec *hs = HouseSpec::Get(house);
02244
02245 if (_loaded_newgrf_features.has_newhouses && !_generating_world &&
02246 _game_mode != GM_EDITOR && (hs->extra_flags & BUILDING_IS_HISTORICAL) != 0) {
02247 continue;
02248 }
02249
02250 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02251
02252
02253 uint oneof = 0;
02254
02255 if (hs->building_flags & BUILDING_IS_CHURCH) {
02256 SetBit(oneof, TOWN_HAS_CHURCH);
02257 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02258 SetBit(oneof, TOWN_HAS_STADIUM);
02259 }
02260
02261 if (t->flags & oneof) continue;
02262
02263
02264 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02265 if (noslope && slope != SLOPE_FLAT) continue;
02266
02267 if (hs->building_flags & TILE_SIZE_2x2) {
02268 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02269 } else if (hs->building_flags & TILE_SIZE_2x1) {
02270 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02271 } else if (hs->building_flags & TILE_SIZE_1x2) {
02272 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02273 } else {
02274
02275 }
02276
02277 byte random_bits = Random();
02278
02279 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02280 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile, true, random_bits);
02281 if (callback_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_ALLOW_CONSTRUCTION, callback_res)) continue;
02282 }
02283
02284
02285 t->num_houses++;
02286
02287
02288 t->flags |= oneof;
02289
02290 byte construction_counter = 0;
02291 byte construction_stage = 0;
02292
02293 if (_generating_world || _game_mode == GM_EDITOR) {
02294 uint32 r = Random();
02295
02296 construction_stage = TOWN_HOUSE_COMPLETED;
02297 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02298
02299 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02300 ChangePopulation(t, hs->population);
02301 } else {
02302 construction_counter = GB(r, 2, 2);
02303 }
02304 }
02305
02306 MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
02307 UpdateTownCargoes(t, tile);
02308
02309 return true;
02310 }
02311
02312 return false;
02313 }
02314
02321 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02322 {
02323 assert(IsTileType(tile, MP_HOUSE));
02324 DecreaseBuildingCount(t, house);
02325 DoClearSquare(tile);
02326 DeleteAnimatedTile(tile);
02327
02328 DeleteNewGRFInspectWindow(GSF_HOUSES, tile);
02329 }
02330
02338 TileIndexDiff GetHouseNorthPart(HouseID &house)
02339 {
02340 if (house >= 3) {
02341 if (HouseSpec::Get(house - 1)->building_flags & TILE_SIZE_2x1) {
02342 house--;
02343 return TileDiffXY(-1, 0);
02344 } else if (HouseSpec::Get(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02345 house--;
02346 return TileDiffXY(0, -1);
02347 } else if (HouseSpec::Get(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02348 house -= 2;
02349 return TileDiffXY(-1, 0);
02350 } else if (HouseSpec::Get(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02351 house -= 3;
02352 return TileDiffXY(-1, -1);
02353 }
02354 }
02355 return 0;
02356 }
02357
02358 void ClearTownHouse(Town *t, TileIndex tile)
02359 {
02360 assert(IsTileType(tile, MP_HOUSE));
02361
02362 HouseID house = GetHouseType(tile);
02363
02364
02365 tile += GetHouseNorthPart(house);
02366
02367 const HouseSpec *hs = HouseSpec::Get(house);
02368
02369
02370 if (IsHouseCompleted(tile)) {
02371 ChangePopulation(t, -hs->population);
02372 }
02373
02374 t->num_houses--;
02375
02376
02377 if (hs->building_flags & BUILDING_IS_CHURCH) {
02378 ClrBit(t->flags, TOWN_HAS_CHURCH);
02379 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02380 ClrBit(t->flags, TOWN_HAS_STADIUM);
02381 }
02382
02383
02384 uint eflags = hs->building_flags;
02385 DoClearTownHouseHelper(tile, t, house);
02386 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02387 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02388 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02389
02390
02391 UpdateTownCargoes(t, tile);
02392 }
02393
02403 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02404 {
02405 Town *t = Town::GetIfValid(p1);
02406 if (t == NULL) return CMD_ERROR;
02407
02408 bool reset = StrEmpty(text);
02409
02410 if (!reset) {
02411 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
02412 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
02413 }
02414
02415 if (flags & DC_EXEC) {
02416 free(t->name);
02417 t->name = reset ? NULL : strdup(text);
02418
02419 t->UpdateVirtCoord();
02420 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02421 UpdateAllStationVirtCoords();
02422 }
02423 return CommandCost();
02424 }
02425
02431 const CargoSpec *FindFirstCargoWithTownEffect(TownEffect effect)
02432 {
02433 const CargoSpec *cs;
02434 FOR_ALL_CARGOSPECS(cs) {
02435 if (cs->town_effect == effect) return cs;
02436 }
02437 return NULL;
02438 }
02439
02440 static void UpdateTownGrowRate(Town *t);
02441
02453 CommandCost CmdTownCargoGoal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02454 {
02455 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02456
02457 TownEffect te = (TownEffect)GB(p1, 16, 8);
02458 if (te < TE_BEGIN || te > TE_END) return CMD_ERROR;
02459
02460 uint16 index = GB(p1, 0, 16);
02461 Town *t = Town::GetIfValid(index);
02462 if (t == NULL) return CMD_ERROR;
02463
02464
02465 const CargoSpec *cargo = FindFirstCargoWithTownEffect(te);
02466 if (cargo == NULL) return CMD_ERROR;
02467
02468 if (flags & DC_EXEC) {
02469 t->goal[te] = p2;
02470 UpdateTownGrowRate(t);
02471 InvalidateWindowData(WC_TOWN_VIEW, index);
02472 }
02473
02474 return CommandCost();
02475 }
02476
02486 CommandCost CmdTownSetText(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02487 {
02488 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02489 Town *t = Town::GetIfValid(p1);
02490 if (t == NULL) return CMD_ERROR;
02491
02492 if (flags & DC_EXEC) {
02493 free(t->text);
02494 t->text = StrEmpty(text) ? NULL : strdup(text);
02495 InvalidateWindowData(WC_TOWN_VIEW, p1);
02496 }
02497
02498 return CommandCost();
02499 }
02500
02510 CommandCost CmdTownGrowthRate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02511 {
02512 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02513 if ((p2 & TOWN_GROW_RATE_CUSTOM) != 0) return CMD_ERROR;
02514 if (GB(p2, 16, 16) != 0) return CMD_ERROR;
02515
02516 Town *t = Town::GetIfValid(p1);
02517 if (t == NULL) return CMD_ERROR;
02518
02519 if (flags & DC_EXEC) {
02520 t->growth_rate = (p2 == 0) ? 0 : p2 | TOWN_GROW_RATE_CUSTOM;
02521 UpdateTownGrowRate(t);
02522 InvalidateWindowData(WC_TOWN_VIEW, p1);
02523 }
02524
02525 return CommandCost();
02526 }
02527
02537 CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02538 {
02539 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) return CMD_ERROR;
02540 Town *t = Town::GetIfValid(p1);
02541 if (t == NULL) return CMD_ERROR;
02542
02543 if (flags & DC_EXEC) {
02544
02545 if (p2 == 0) {
02546 uint amount = RandomRange(ClampToU16(t->num_houses / 10)) + 3;
02547 t->num_houses += amount;
02548 UpdateTownRadius(t);
02549
02550 uint n = amount * 10;
02551 do GrowTown(t); while (--n);
02552
02553 t->num_houses -= amount;
02554 } else {
02555 for (; p2 > 0; p2--) {
02556
02557 for (uint i = 0; i < 25; i++) if (GrowTown(t)) break;
02558 }
02559 }
02560 UpdateTownRadius(t);
02561
02562 UpdateTownMaxPass(t);
02563 }
02564
02565 return CommandCost();
02566 }
02567
02577 CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02578 {
02579 if (_game_mode != GM_EDITOR) return CMD_ERROR;
02580 Town *t = Town::GetIfValid(p1);
02581 if (t == NULL) return CMD_ERROR;
02582
02583
02584 const Station *st;
02585 FOR_ALL_STATIONS(st) {
02586 if (st->town == t) {
02587
02588 if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
02589
02590 CommandCost ret = DoCommand(st->airport.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02591 if (ret.Failed()) return ret;
02592 }
02593 }
02594
02595
02596 const Depot *d;
02597 FOR_ALL_DEPOTS(d) {
02598 if (d->town == t) return CMD_ERROR;
02599 }
02600
02601
02602 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
02603 bool try_clear = false;
02604 switch (GetTileType(tile)) {
02605 case MP_ROAD:
02606 try_clear = HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index;
02607 break;
02608
02609 case MP_TUNNELBRIDGE:
02610 try_clear = IsTileOwner(tile, OWNER_TOWN) && ClosestTownFromTile(tile, UINT_MAX) == t;
02611 break;
02612
02613 case MP_HOUSE:
02614 try_clear = GetTownIndex(tile) == t->index;
02615 break;
02616
02617 case MP_INDUSTRY:
02618 try_clear = Industry::GetByTile(tile)->town == t;
02619 break;
02620
02621 case MP_OBJECT:
02622 if (Town::GetNumItems() == 1) {
02623
02624 try_clear = true;
02625 } else {
02626 Object *o = Object::GetByTile(tile);
02627 if (o->town == t) {
02628 if (GetObjectType(tile) == OBJECT_STATUE) {
02629
02630 try_clear = true;
02631 } else {
02632
02633 if (flags & DC_EXEC) o->town = NULL;
02634 }
02635 }
02636 }
02637 break;
02638
02639 default:
02640 break;
02641 }
02642 if (try_clear) {
02643 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02644 if (ret.Failed()) return ret;
02645 }
02646 }
02647
02648
02649 if (flags & DC_EXEC) delete t;
02650
02651 return CommandCost();
02652 }
02653
02658 const byte _town_action_costs[TACT_COUNT] = {
02659 2, 4, 9, 35, 48, 53, 117, 175
02660 };
02661
02662 static CommandCost TownActionAdvertiseSmall(Town *t, DoCommandFlag flags)
02663 {
02664 if (flags & DC_EXEC) {
02665 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02666 }
02667 return CommandCost();
02668 }
02669
02670 static CommandCost TownActionAdvertiseMedium(Town *t, DoCommandFlag flags)
02671 {
02672 if (flags & DC_EXEC) {
02673 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02674 }
02675 return CommandCost();
02676 }
02677
02678 static CommandCost TownActionAdvertiseLarge(Town *t, DoCommandFlag flags)
02679 {
02680 if (flags & DC_EXEC) {
02681 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02682 }
02683 return CommandCost();
02684 }
02685
02686 static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlag flags)
02687 {
02688
02689 if (!_settings_game.economy.fund_roads) return CMD_ERROR;
02690
02691 if (flags & DC_EXEC) {
02692 t->road_build_months = 6;
02693
02694 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
02695 SetDParam(0, _current_company);
02696 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02697
02698 char *cn = strdup(company_name);
02699 SetDParam(0, t->index);
02700 SetDParamStr(1, cn);
02701
02702 AddNewsItem(STR_NEWS_ROAD_REBUILDING, NS_GENERAL, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cn);
02703 }
02704 return CommandCost();
02705 }
02706
02713 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02714 {
02715
02716 if (IsSteepSlope(GetTileSlope(tile))) return false;
02717
02718 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02719
02720 if (!IsTileType(tile, MP_HOUSE) &&
02721 !IsTileType(tile, MP_CLEAR) &&
02722 !IsTileType(tile, MP_TREES)) {
02723 return false;
02724 }
02725
02726 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02727 CommandCost r = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
02728 cur_company.Restore();
02729
02730 if (r.Failed()) return false;
02731
02732 return true;
02733 }
02734
02742 static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
02743 {
02744 if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS);
02745
02746 TileIndex tile = t->xy;
02747 if (CircularTileSearch(&tile, 9, SearchTileForStatue, NULL)) {
02748 if (flags & DC_EXEC) {
02749 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02750 DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02751 cur_company.Restore();
02752 BuildObject(OBJECT_STATUE, tile, _current_company, t);
02753 SetBit(t->statues, _current_company);
02754 MarkTileDirtyByTile(tile);
02755 }
02756 return CommandCost();
02757 }
02758 return_cmd_error(STR_ERROR_STATUE_NO_SUITABLE_PLACE);
02759 }
02760
02761 static CommandCost TownActionFundBuildings(Town *t, DoCommandFlag flags)
02762 {
02763
02764 if (!_settings_game.economy.fund_buildings) return CMD_ERROR;
02765
02766 if (flags & DC_EXEC) {
02767
02768 t->grow_counter = 1;
02769
02770 SetBit(t->flags, TOWN_IS_FUNDED);
02771
02772 t->fund_buildings_months = 3;
02773
02774 SetWindowDirty(WC_TOWN_VIEW, t->index);
02775 }
02776 return CommandCost();
02777 }
02778
02779 static CommandCost TownActionBuyRights(Town *t, DoCommandFlag flags)
02780 {
02781
02782 if (!_settings_game.economy.exclusive_rights) return CMD_ERROR;
02783
02784 if (flags & DC_EXEC) {
02785 t->exclusive_counter = 12;
02786 t->exclusivity = _current_company;
02787
02788 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02789 }
02790 return CommandCost();
02791 }
02792
02793 static CommandCost TownActionBribe(Town *t, DoCommandFlag flags)
02794 {
02795 if (flags & DC_EXEC) {
02796 if (Chance16(1, 14)) {
02797
02798 t->unwanted[_current_company] = 6;
02799
02800
02801 Station *st;
02802 FOR_ALL_STATIONS(st) {
02803 if (st->town == t && st->owner == _current_company) {
02804 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02805 }
02806 }
02807
02808
02809
02810 if (IsLocalCompany()) ShowErrorMessage(STR_ERROR_BRIBE_FAILED, INVALID_STRING_ID, WL_INFO);
02811
02812
02813
02814
02815
02816 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02817 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02818 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02819 }
02820 } else {
02821 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02822 }
02823 }
02824 return CommandCost();
02825 }
02826
02827 typedef CommandCost TownActionProc(Town *t, DoCommandFlag flags);
02828 static TownActionProc * const _town_action_proc[] = {
02829 TownActionAdvertiseSmall,
02830 TownActionAdvertiseMedium,
02831 TownActionAdvertiseLarge,
02832 TownActionRoadRebuild,
02833 TownActionBuildStatue,
02834 TownActionFundBuildings,
02835 TownActionBuyRights,
02836 TownActionBribe
02837 };
02838
02846 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02847 {
02848 int num = 0;
02849 TownActions buttons = TACT_NONE;
02850
02851
02852 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02853
02854
02855 Money avail = Company::Get(cid)->money + _price[PR_STATION_VALUE] * 200;
02856
02857
02858
02859 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02860 const TownActions cur = (TownActions)(1 << i);
02861
02862
02863 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM)) continue;
02864
02865
02866 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights) continue;
02867
02868
02869 if (cur == TACT_FUND_BUILDINGS && !_settings_game.economy.fund_buildings) continue;
02870
02871
02872 if (cur == TACT_ROAD_REBUILD && !_settings_game.economy.fund_roads) continue;
02873
02874
02875 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid)) continue;
02876
02877 if (avail >= _town_action_costs[i] * _price[PR_TOWN_ACTION] >> 8) {
02878 buttons |= cur;
02879 num++;
02880 }
02881 }
02882 }
02883
02884 if (nump != NULL) *nump = num;
02885 return buttons;
02886 }
02887
02899 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02900 {
02901 Town *t = Town::GetIfValid(p1);
02902 if (t == NULL || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02903
02904 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02905
02906 CommandCost cost(EXPENSES_OTHER, _price[PR_TOWN_ACTION] * _town_action_costs[p2] >> 8);
02907
02908 CommandCost ret = _town_action_proc[p2](t, flags);
02909 if (ret.Failed()) return ret;
02910
02911 if (flags & DC_EXEC) {
02912 SetWindowDirty(WC_TOWN_AUTHORITY, p1);
02913 }
02914
02915 return cost;
02916 }
02917
02918 static void UpdateTownRating(Town *t)
02919 {
02920
02921 const Company *c;
02922 FOR_ALL_COMPANIES(c) {
02923 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02924 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02925 }
02926 }
02927
02928 const Station *st;
02929 FOR_ALL_STATIONS(st) {
02930 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02931 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02932 if (Company::IsValidID(st->owner)) {
02933 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02934 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02935 }
02936 } else {
02937 if (Company::IsValidID(st->owner)) {
02938 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02939 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02940 }
02941 }
02942 }
02943 }
02944
02945
02946 for (uint i = 0; i < MAX_COMPANIES; i++) {
02947 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02948 }
02949
02950 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02951 }
02952
02953 static void UpdateTownGrowRate(Town *t)
02954 {
02955 ClrBit(t->flags, TOWN_IS_FUNDED);
02956 SetWindowDirty(WC_TOWN_VIEW, t->index);
02957
02958 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
02959
02960 if (t->fund_buildings_months == 0) {
02961
02962 for (int i = TE_BEGIN; i < TE_END; i++) {
02963 switch (t->goal[i]) {
02964 case TOWN_GROWTH_WINTER:
02965 if (TileHeight(t->xy) >= GetSnowLine() && t->received[i].old_act == 0 && t->population > 90) return;
02966 break;
02967 case TOWN_GROWTH_DESERT:
02968 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && t->received[i].old_act == 0 && t->population > 60) return;
02969 break;
02970 default:
02971 if (t->goal[i] > t->received[i].old_act) return;
02972 break;
02973 }
02974 }
02975 }
02976
02977 if ((t->growth_rate & TOWN_GROW_RATE_CUSTOM) != 0) {
02978 SetBit(t->flags, TOWN_IS_FUNDED);
02979 SetWindowDirty(WC_TOWN_VIEW, t->index);
02980 return;
02981 }
02982
02987 static const uint16 _grow_count_values[2][6] = {
02988 { 120, 120, 120, 100, 80, 60 },
02989 { 320, 420, 300, 220, 160, 100 }
02990 };
02991
02992 int n = 0;
02993
02994 const Station *st;
02995 FOR_ALL_STATIONS(st) {
02996 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02997 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02998 n++;
02999 }
03000 }
03001 }
03002
03003 uint16 m;
03004
03005 if (t->fund_buildings_months != 0) {
03006 m = _grow_count_values[0][min(n, 5)];
03007 } else {
03008 m = _grow_count_values[1][min(n, 5)];
03009 if (n == 0 && !Chance16(1, 12)) return;
03010 }
03011
03012
03013
03014 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
03015
03016 m >>= growth_multiplier;
03017 if (t->larger_town) m /= 2;
03018
03019 t->growth_rate = m / (t->num_houses / 50 + 1);
03020 if (m <= t->grow_counter) {
03021 t->grow_counter = m;
03022 }
03023
03024 SetBit(t->flags, TOWN_IS_FUNDED);
03025 SetWindowDirty(WC_TOWN_VIEW, t->index);
03026 }
03027
03028 static void UpdateTownAmounts(Town *t)
03029 {
03030 for (CargoID i = 0; i < NUM_CARGO; i++) t->supplied[i].NewMonth();
03031 for (int i = TE_BEGIN; i < TE_END; i++) t->received[i].NewMonth();
03032 if (t->fund_buildings_months != 0) t->fund_buildings_months--;
03033
03034 SetWindowDirty(WC_TOWN_VIEW, t->index);
03035 }
03036
03037 static void UpdateTownUnwanted(Town *t)
03038 {
03039 const Company *c;
03040
03041 FOR_ALL_COMPANIES(c) {
03042 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
03043 }
03044 }
03045
03052 CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
03053 {
03054 if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
03055
03056 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
03057 if (t == NULL) return CommandCost();
03058
03059 if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
03060
03061 SetDParam(0, t->index);
03062 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03063 }
03064
03073 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
03074 {
03075 Town *t;
03076 uint best = threshold;
03077 Town *best_town = NULL;
03078
03079 FOR_ALL_TOWNS(t) {
03080 uint dist = DistanceManhattan(tile, t->xy);
03081 if (dist < best) {
03082 best = dist;
03083 best_town = t;
03084 }
03085 }
03086
03087 return best_town;
03088 }
03089
03098 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
03099 {
03100 switch (GetTileType(tile)) {
03101 case MP_ROAD:
03102 if (IsRoadDepot(tile)) return CalcClosestTownFromTile(tile, threshold);
03103
03104 if (!HasTownOwnedRoad(tile)) {
03105 TownID tid = GetTownIndex(tile);
03106
03107 if (tid == (TownID)INVALID_TOWN) {
03108
03109 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
03110 assert(Town::GetNumItems() == 0);
03111 return NULL;
03112 }
03113
03114 assert(Town::IsValidID(tid));
03115 Town *town = Town::Get(tid);
03116
03117 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
03118
03119 return town;
03120 }
03121
03122
03123 case MP_HOUSE:
03124 return Town::GetByTile(tile);
03125
03126 default:
03127 return CalcClosestTownFromTile(tile, threshold);
03128 }
03129 }
03130
03131 static bool _town_rating_test = false;
03132 static SmallMap<const Town *, int, 4> _town_test_ratings;
03133
03139 void SetTownRatingTestMode(bool mode)
03140 {
03141 static int ref_count = 0;
03142 if (mode) {
03143 if (ref_count == 0) {
03144 _town_test_ratings.Clear();
03145 }
03146 ref_count++;
03147 } else {
03148 assert(ref_count > 0);
03149 ref_count--;
03150 }
03151 _town_rating_test = !(ref_count == 0);
03152 }
03153
03159 static int GetRating(const Town *t)
03160 {
03161 if (_town_rating_test) {
03162 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
03163 if (it != _town_test_ratings.End()) {
03164 return it->second;
03165 }
03166 }
03167 return t->ratings[_current_company];
03168 }
03169
03177 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
03178 {
03179
03180 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
03181 !Company::IsValidID(_current_company) ||
03182 (_cheats.magic_bulldozer.value && add < 0)) {
03183 return;
03184 }
03185
03186 int rating = GetRating(t);
03187 if (add < 0) {
03188 if (rating > max) {
03189 rating += add;
03190 if (rating < max) rating = max;
03191 }
03192 } else {
03193 if (rating < max) {
03194 rating += add;
03195 if (rating > max) rating = max;
03196 }
03197 }
03198 if (_town_rating_test) {
03199 _town_test_ratings[t] = rating;
03200 } else {
03201 SetBit(t->have_ratings, _current_company);
03202 t->ratings[_current_company] = rating;
03203 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03204 }
03205 }
03206
03214 CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
03215 {
03216
03217 if (t == NULL || !Company::IsValidID(_current_company) ||
03218 _cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
03219 return CommandCost();
03220 }
03221
03222
03223 static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
03224
03225 { RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE},
03226 { RATING_ROAD_NEEDED_NEUTRAL, RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL},
03227 { RATING_ROAD_NEEDED_HOSTILE, RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE},
03228 };
03229
03230
03231
03232
03233
03234 int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][type];
03235
03236 if (GetRating(t) < needed) {
03237 SetDParam(0, t->index);
03238 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03239 }
03240
03241 return CommandCost();
03242 }
03243
03244 void TownsMonthlyLoop()
03245 {
03246 Town *t;
03247
03248 FOR_ALL_TOWNS(t) {
03249 if (t->road_build_months != 0) t->road_build_months--;
03250
03251 if (t->exclusive_counter != 0) {
03252 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
03253 }
03254
03255 UpdateTownAmounts(t);
03256 UpdateTownRating(t);
03257 UpdateTownGrowRate(t);
03258 UpdateTownUnwanted(t);
03259 UpdateTownCargoes(t);
03260 }
03261
03262 UpdateTownCargoBitmap();
03263 }
03264
03265 void TownsYearlyLoop()
03266 {
03267
03268 for (TileIndex t = 0; t < MapSize(); t++) {
03269 if (!IsTileType(t, MP_HOUSE)) continue;
03270 IncrementHouseAge(t);
03271 }
03272 }
03273
03274 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
03275 {
03276 if (AutoslopeEnabled()) {
03277 HouseID house = GetHouseType(tile);
03278 GetHouseNorthPart(house);
03279 const HouseSpec *hs = HouseSpec::Get(house);
03280
03281
03282 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
03283 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
03284 bool allow_terraform = true;
03285
03286
03287 house = GetHouseType(tile);
03288 hs = HouseSpec::Get(house);
03289 if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
03290
03291 uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
03292 if (res != CALLBACK_FAILED && ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_AUTOSLOPE, res)) allow_terraform = false;
03293 }
03294
03295 if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
03296 }
03297 }
03298
03299 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
03300 }
03301
03303 extern const TileTypeProcs _tile_type_town_procs = {
03304 DrawTile_Town,
03305 GetSlopePixelZ_Town,
03306 ClearTile_Town,
03307 AddAcceptedCargo_Town,
03308 GetTileDesc_Town,
03309 GetTileTrackStatus_Town,
03310 NULL,
03311 AnimateTile_Town,
03312 TileLoop_Town,
03313 ChangeTileOwner_Town,
03314 AddProducedCargo_Town,
03315 NULL,
03316 GetFoundation_Town,
03317 TerraformTile_Town,
03318 };
03319
03320
03321 HouseSpec _house_specs[HOUSE_MAX];
03322
03323 void ResetHouses()
03324 {
03325 memset(&_house_specs, 0, sizeof(_house_specs));
03326 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
03327
03328
03329 _house_mngr.ResetOverride();
03330 }