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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 "autoslope.h"
00030 #include "tunnelbridge_map.h"
00031 #include "strings_func.h"
00032 #include "window_func.h"
00033 #include "string_func.h"
00034 #include "newgrf_cargo.h"
00035 #include "cheat_type.h"
00036 #include "animated_tile_func.h"
00037 #include "date_func.h"
00038 #include "subsidy_func.h"
00039 #include "core/pool_func.hpp"
00040 #include "town.h"
00041 #include "townname_func.h"
00042 #include "core/random_func.hpp"
00043 #include "core/backup_type.hpp"
00044 #include "depot_base.h"
00045 #include "object_map.h"
00046 #include "object_base.h"
00047 #include "ai/ai.hpp"
00048 #include "game/game.hpp"
00049
00050 #include "table/strings.h"
00051 #include "table/town_land.h"
00052
00053 TownID _new_town_id;
00054 uint32 _town_cargoes_accepted;
00055
00056
00057 TownPool _town_pool("Town");
00058 INSTANTIATE_POOL_METHODS(Town)
00059
00060 Town::~Town()
00061 {
00062 free(this->name);
00063 free(this->text);
00064
00065 if (CleaningPool()) return;
00066
00067
00068
00069 DeleteWindowById(WC_TOWN_VIEW, this->index);
00070
00071
00072 const Industry *i;
00073 FOR_ALL_INDUSTRIES(i) assert(i->town != this);
00074
00075
00076 const Object *o;
00077 FOR_ALL_OBJECTS(o) assert(o->town != this);
00078
00079
00080 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
00081 switch (GetTileType(tile)) {
00082 case MP_HOUSE:
00083 assert(GetTownIndex(tile) != this->index);
00084 break;
00085
00086 case MP_ROAD:
00087 assert(!HasTownOwnedRoad(tile) || GetTownIndex(tile) != this->index);
00088 break;
00089
00090 case MP_TUNNELBRIDGE:
00091 assert(!IsTileOwner(tile, OWNER_TOWN) || ClosestTownFromTile(tile, UINT_MAX) != this);
00092 break;
00093
00094 default:
00095 break;
00096 }
00097 }
00098
00099
00100 this->psa_list.clear();
00101
00102 DeleteSubsidyWith(ST_TOWN, this->index);
00103 DeleteNewGRFInspectWindow(GSF_FAKE_TOWNS, this->index);
00104 CargoPacket::InvalidateAllFrom(ST_TOWN, this->index);
00105 MarkWholeScreenDirty();
00106 }
00107
00108
00114 void Town::PostDestructor(size_t index)
00115 {
00116 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
00117 UpdateNearestTownForRoadTiles(false);
00118
00119
00120 Object *o;
00121 FOR_ALL_OBJECTS(o) {
00122 if (o->town == NULL) o->town = CalcClosestTownFromTile(o->location.tile, UINT_MAX);
00123 }
00124 }
00125
00129 void Town::InitializeLayout(TownLayout layout)
00130 {
00131 if (layout != TL_RANDOM) {
00132 this->layout = layout;
00133 return;
00134 }
00135
00136 this->layout = TileHash(TileX(this->xy), TileY(this->xy)) % (NUM_TLS - 1);
00137 }
00138
00143 Town *Town::GetRandom()
00144 {
00145 if (Town::GetNumItems() == 0) return NULL;
00146 int num = RandomRange((uint16)Town::GetNumItems());
00147 size_t index = MAX_UVALUE(size_t);
00148
00149 while (num >= 0) {
00150 num--;
00151 index++;
00152
00153
00154 while (!Town::IsValidID(index)) {
00155 index++;
00156 assert(index < Town::GetPoolSize());
00157 }
00158 }
00159
00160 return Town::Get(index);
00161 }
00162
00167 Money HouseSpec::GetRemovalCost() const
00168 {
00169 return (_price[PR_CLEAR_HOUSE] * this->removal_cost) >> 8;
00170 }
00171
00172
00173 static int _grow_town_result;
00174
00175
00176 enum TownGrowthResult {
00177 GROWTH_SUCCEED = -1,
00178 GROWTH_SEARCH_STOPPED = 0
00179
00180 };
00181
00182 static bool BuildTownHouse(Town *t, TileIndex tile);
00183 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout);
00184
00185 static void TownDrawHouseLift(const TileInfo *ti)
00186 {
00187 AddChildSpriteScreen(SPR_LIFT, PAL_NONE, 14, 60 - GetLiftPosition(ti->tile));
00188 }
00189
00190 typedef void TownDrawTileProc(const TileInfo *ti);
00191 static TownDrawTileProc * const _town_draw_tile_procs[1] = {
00192 TownDrawHouseLift
00193 };
00194
00200 static inline DiagDirection RandomDiagDir()
00201 {
00202 return (DiagDirection)(3 & Random());
00203 }
00204
00210 static void DrawTile_Town(TileInfo *ti)
00211 {
00212 HouseID house_id = GetHouseType(ti->tile);
00213
00214 if (house_id >= NEW_HOUSE_OFFSET) {
00215
00216
00217
00218 if (HouseSpec::Get(house_id)->grf_prop.spritegroup[0] != NULL) {
00219 DrawNewHouseTile(ti, house_id);
00220 return;
00221 } else {
00222 house_id = HouseSpec::Get(house_id)->grf_prop.subst_id;
00223 }
00224 }
00225
00226
00227 const DrawBuildingsTileStruct *dcts = &_town_draw_tile_data[house_id << 4 | TileHash2Bit(ti->x, ti->y) << 2 | GetHouseBuildingStage(ti->tile)];
00228
00229 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00230
00231 DrawGroundSprite(dcts->ground.sprite, dcts->ground.pal);
00232
00233
00234 if (IsInvisibilitySet(TO_HOUSES)) return;
00235
00236
00237 SpriteID image = dcts->building.sprite;
00238 if (image != 0) {
00239 AddSortableSpriteToDraw(image, dcts->building.pal,
00240 ti->x + dcts->subtile_x,
00241 ti->y + dcts->subtile_y,
00242 dcts->width,
00243 dcts->height,
00244 dcts->dz,
00245 ti->z,
00246 IsTransparencySet(TO_HOUSES)
00247 );
00248
00249 if (IsTransparencySet(TO_HOUSES)) return;
00250 }
00251
00252 {
00253 int proc = dcts->draw_proc - 1;
00254
00255 if (proc >= 0) _town_draw_tile_procs[proc](ti);
00256 }
00257 }
00258
00259 static int GetSlopePixelZ_Town(TileIndex tile, uint x, uint y)
00260 {
00261 return GetTileMaxPixelZ(tile);
00262 }
00263
00265 static Foundation GetFoundation_Town(TileIndex tile, Slope tileh)
00266 {
00267 HouseID hid = GetHouseType(tile);
00268
00269
00270
00271
00272
00273 if (hid >= NEW_HOUSE_OFFSET) {
00274 const HouseSpec *hs = HouseSpec::Get(hid);
00275 if (hs->grf_prop.spritegroup[0] != NULL && HasBit(hs->callback_mask, CBM_HOUSE_DRAW_FOUNDATIONS)) {
00276 uint32 callback_res = GetHouseCallback(CBID_HOUSE_DRAW_FOUNDATIONS, 0, 0, hid, Town::GetByTile(tile), tile);
00277 if (callback_res != CALLBACK_FAILED && !ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_DRAW_FOUNDATIONS, callback_res)) return FOUNDATION_NONE;
00278 }
00279 }
00280 return FlatteningFoundation(tileh);
00281 }
00282
00289 static void AnimateTile_Town(TileIndex tile)
00290 {
00291 if (GetHouseType(tile) >= NEW_HOUSE_OFFSET) {
00292 AnimateNewHouseTile(tile);
00293 return;
00294 }
00295
00296 if (_tick_counter & 3) return;
00297
00298
00299
00300
00301
00302 if (!(HouseSpec::Get(GetHouseType(tile))->building_flags & BUILDING_IS_ANIMATED)) {
00303 DeleteAnimatedTile(tile);
00304 return;
00305 }
00306
00307 if (!LiftHasDestination(tile)) {
00308 uint i;
00309
00310
00311
00312
00313
00314 do {
00315 i = RandomRange(7);
00316 } while (i == 1 || i * 6 == GetLiftPosition(tile));
00317
00318 SetLiftDestination(tile, i);
00319 }
00320
00321 int pos = GetLiftPosition(tile);
00322 int dest = GetLiftDestination(tile) * 6;
00323 pos += (pos < dest) ? 1 : -1;
00324 SetLiftPosition(tile, pos);
00325
00326 if (pos == dest) {
00327 HaltLift(tile);
00328 DeleteAnimatedTile(tile);
00329 }
00330
00331 MarkTileDirtyByTile(tile);
00332 }
00333
00340 static bool IsCloseToTown(TileIndex tile, uint dist)
00341 {
00342 const Town *t;
00343
00344 FOR_ALL_TOWNS(t) {
00345 if (DistanceManhattan(tile, t->xy) < dist) return true;
00346 }
00347 return false;
00348 }
00349
00354 void Town::UpdateVirtCoord()
00355 {
00356 Point pt = RemapCoords2(TileX(this->xy) * TILE_SIZE, TileY(this->xy) * TILE_SIZE);
00357 SetDParam(0, this->index);
00358 SetDParam(1, this->cache.population);
00359 this->cache.sign.UpdatePosition(pt.x, pt.y - 24 * ZOOM_LVL_BASE,
00360 _settings_client.gui.population_in_label ? STR_VIEWPORT_TOWN_POP : STR_VIEWPORT_TOWN);
00361
00362 SetWindowDirty(WC_TOWN_VIEW, this->index);
00363 }
00364
00366 void UpdateAllTownVirtCoords()
00367 {
00368 Town *t;
00369
00370 FOR_ALL_TOWNS(t) {
00371 t->UpdateVirtCoord();
00372 }
00373 }
00374
00380 static void ChangePopulation(Town *t, int mod)
00381 {
00382 t->cache.population += mod;
00383 InvalidateWindowData(WC_TOWN_VIEW, t->index);
00384 t->UpdateVirtCoord();
00385
00386 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
00387 }
00388
00394 uint32 GetWorldPopulation()
00395 {
00396 uint32 pop = 0;
00397 const Town *t;
00398
00399 FOR_ALL_TOWNS(t) pop += t->cache.population;
00400 return pop;
00401 }
00402
00407 static void MakeSingleHouseBigger(TileIndex tile)
00408 {
00409 assert(IsTileType(tile, MP_HOUSE));
00410
00411
00412 IncHouseConstructionTick(tile);
00413 if (GetHouseConstructionTick(tile) != 0) return;
00414
00415 AnimateNewHouseConstruction(tile);
00416
00417 if (IsHouseCompleted(tile)) {
00418
00419
00420 ChangePopulation(Town::GetByTile(tile), HouseSpec::Get(GetHouseType(tile))->population);
00421 ResetHouseAge(tile);
00422 }
00423 MarkTileDirtyByTile(tile);
00424 }
00425
00430 static void MakeTownHouseBigger(TileIndex tile)
00431 {
00432 uint flags = HouseSpec::Get(GetHouseType(tile))->building_flags;
00433 if (flags & BUILDING_HAS_1_TILE) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 0));
00434 if (flags & BUILDING_2_TILES_Y) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 1));
00435 if (flags & BUILDING_2_TILES_X) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 0));
00436 if (flags & BUILDING_HAS_4_TILES) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 1));
00437 }
00438
00445 static void TileLoop_Town(TileIndex tile)
00446 {
00447 HouseID house_id = GetHouseType(tile);
00448
00449
00450
00451 if (house_id >= NEW_HOUSE_OFFSET && !NewHouseTileLoop(tile)) return;
00452
00453 if (!IsHouseCompleted(tile)) {
00454
00455 MakeTownHouseBigger(tile);
00456 return;
00457 }
00458
00459 const HouseSpec *hs = HouseSpec::Get(house_id);
00460
00461
00462 if ((hs->building_flags & BUILDING_IS_ANIMATED) &&
00463 house_id < NEW_HOUSE_OFFSET &&
00464 !LiftHasDestination(tile) &&
00465 Chance16(1, 2)) {
00466 AddAnimatedTile(tile);
00467 }
00468
00469 Town *t = Town::GetByTile(tile);
00470 uint32 r = Random();
00471
00472 StationFinder stations(TileArea(tile, 1, 1));
00473
00474 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00475 for (uint i = 0; i < 256; i++) {
00476 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, r, house_id, t, tile);
00477
00478 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00479
00480 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00481 if (cargo == CT_INVALID) continue;
00482
00483 uint amt = GB(callback, 0, 8);
00484 if (amt == 0) continue;
00485
00486 uint moved = MoveGoodsToStation(cargo, amt, ST_TOWN, t->index, stations.GetStations());
00487
00488 const CargoSpec *cs = CargoSpec::Get(cargo);
00489 t->supplied[cs->Index()].new_max += amt;
00490 t->supplied[cs->Index()].new_act += moved;
00491 }
00492 } else {
00493 if (GB(r, 0, 8) < hs->population) {
00494 uint amt = GB(r, 0, 8) / 8 + 1;
00495
00496 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00497 t->supplied[CT_PASSENGERS].new_max += amt;
00498 t->supplied[CT_PASSENGERS].new_act += MoveGoodsToStation(CT_PASSENGERS, amt, ST_TOWN, t->index, stations.GetStations());
00499 }
00500
00501 if (GB(r, 8, 8) < hs->mail_generation) {
00502 uint amt = GB(r, 8, 8) / 8 + 1;
00503
00504 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00505 t->supplied[CT_MAIL].new_max += amt;
00506 t->supplied[CT_MAIL].new_act += MoveGoodsToStation(CT_MAIL, amt, ST_TOWN, t->index, stations.GetStations());
00507 }
00508 }
00509
00510 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
00511
00512 if ((hs->building_flags & BUILDING_HAS_1_TILE) &&
00513 HasBit(t->flags, TOWN_IS_FUNDED) &&
00514 CanDeleteHouse(tile) &&
00515 GetHouseAge(tile) >= hs->minimum_life &&
00516 --t->time_until_rebuild == 0) {
00517 t->time_until_rebuild = GB(r, 16, 8) + 192;
00518
00519 ClearTownHouse(t, tile);
00520
00521
00522 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00523 }
00524
00525 cur_company.Restore();
00526 }
00527
00528 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00529 {
00530 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
00531 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00532
00533 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00534
00535 CommandCost cost(EXPENSES_CONSTRUCTION);
00536 cost.AddCost(hs->GetRemovalCost());
00537
00538 int rating = hs->remove_rating_decrease;
00539 Town *t = Town::GetByTile(tile);
00540
00541 if (Company::IsValidID(_current_company)) {
00542 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00543 SetDParam(0, t->index);
00544 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00545 }
00546 }
00547
00548 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00549 if (flags & DC_EXEC) {
00550 ClearTownHouse(t, tile);
00551 }
00552
00553 return cost;
00554 }
00555
00556 static void AddProducedCargo_Town(TileIndex tile, CargoArray &produced)
00557 {
00558 HouseID house_id = GetHouseType(tile);
00559 const HouseSpec *hs = HouseSpec::Get(house_id);
00560 Town *t = Town::GetByTile(tile);
00561
00562 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00563 for (uint i = 0; i < 256; i++) {
00564 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00565
00566 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00567
00568 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00569
00570 if (cargo == CT_INVALID) continue;
00571 produced[cargo]++;
00572 }
00573 } else {
00574 if (hs->population > 0) {
00575 produced[CT_PASSENGERS]++;
00576 }
00577 if (hs->mail_generation > 0) {
00578 produced[CT_MAIL]++;
00579 }
00580 }
00581 }
00582
00583 static inline void AddAcceptedCargoSetMask(CargoID cargo, uint amount, CargoArray &acceptance, uint32 *always_accepted)
00584 {
00585 if (cargo == CT_INVALID || amount == 0) return;
00586 acceptance[cargo] += amount;
00587 SetBit(*always_accepted, cargo);
00588 }
00589
00590 static void AddAcceptedCargo_Town(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00591 {
00592 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00593 CargoID accepts[3];
00594
00595
00596 for (uint8 i = 0; i < lengthof(accepts); i++) {
00597 accepts[i] = hs->accepts_cargo[i];
00598 }
00599
00600
00601 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00602 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00603 if (callback != CALLBACK_FAILED) {
00604
00605 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grf_prop.grffile);
00606 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grf_prop.grffile);
00607 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grf_prop.grffile);
00608 }
00609 }
00610
00611
00612 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00613 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00614 if (callback != CALLBACK_FAILED) {
00615 AddAcceptedCargoSetMask(accepts[0], GB(callback, 0, 4), acceptance, always_accepted);
00616 AddAcceptedCargoSetMask(accepts[1], GB(callback, 4, 4), acceptance, always_accepted);
00617 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00618
00619 AddAcceptedCargoSetMask(CT_FOOD, GB(callback, 8, 4), acceptance, always_accepted);
00620 } else {
00621 AddAcceptedCargoSetMask(accepts[2], GB(callback, 8, 4), acceptance, always_accepted);
00622 }
00623 return;
00624 }
00625 }
00626
00627
00628 for (uint8 i = 0; i < lengthof(accepts); i++) {
00629 AddAcceptedCargoSetMask(accepts[i], hs->cargo_acceptance[i], acceptance, always_accepted);
00630 }
00631 }
00632
00633 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00634 {
00635 const HouseID house = GetHouseType(tile);
00636 const HouseSpec *hs = HouseSpec::Get(house);
00637 bool house_completed = IsHouseCompleted(tile);
00638
00639 td->str = hs->building_name;
00640
00641 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, Town::GetByTile(tile), tile);
00642 if (callback_res != CALLBACK_FAILED && callback_res != 0x400) {
00643 if (callback_res > 0x400) {
00644 ErrorUnknownCallbackResult(hs->grf_prop.grffile->grfid, CBID_HOUSE_CUSTOM_NAME, callback_res);
00645 } else {
00646 StringID new_name = GetGRFStringID(hs->grf_prop.grffile->grfid, 0xD000 + callback_res);
00647 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00648 td->str = new_name;
00649 }
00650 }
00651 }
00652
00653 if (!house_completed) {
00654 SetDParamX(td->dparam, 0, td->str);
00655 td->str = STR_LAI_TOWN_INDUSTRY_DESCRIPTION_UNDER_CONSTRUCTION;
00656 }
00657
00658 if (hs->grf_prop.grffile != NULL) {
00659 const GRFConfig *gc = GetGRFConfig(hs->grf_prop.grffile->grfid);
00660 td->grf = gc->GetName();
00661 }
00662
00663 td->owner[0] = OWNER_TOWN;
00664 }
00665
00666 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00667 {
00668
00669 return 0;
00670 }
00671
00672 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00673 {
00674
00675 }
00676
00680 void UpdateTownCargoTotal(Town *t)
00681 {
00682 t->cargo_accepted_total = 0;
00683
00684 const TileArea &area = t->cargo_accepted.GetArea();
00685 TILE_AREA_LOOP(tile, area) {
00686 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00687 t->cargo_accepted_total |= t->cargo_accepted[tile];
00688 }
00689 }
00690 }
00691
00698 static void UpdateTownCargoes(Town *t, TileIndex start, bool update_total = true)
00699 {
00700 CargoArray accepted, produced;
00701 uint32 dummy;
00702
00703
00704
00705
00706 TileArea area = AcceptanceMatrix::GetAreaForTile(start, 1);
00707 TILE_AREA_LOOP(tile, area) {
00708 if (!IsTileType(tile, MP_HOUSE) || GetTownIndex(tile) != t->index) continue;
00709
00710 AddAcceptedCargo_Town(tile, accepted, &dummy);
00711 AddProducedCargo_Town(tile, produced);
00712 }
00713
00714
00715 uint32 acc = 0;
00716 for (uint cid = 0; cid < NUM_CARGO; cid++) {
00717 if (accepted[cid] >= 8) SetBit(acc, cid);
00718 if (produced[cid] > 0) SetBit(t->cargo_produced, cid);
00719 }
00720 t->cargo_accepted[start] = acc;
00721
00722 if (update_total) UpdateTownCargoTotal(t);
00723 }
00724
00728 void UpdateTownCargoes(Town *t)
00729 {
00730 t->cargo_produced = 0;
00731
00732 const TileArea &area = t->cargo_accepted.GetArea();
00733 if (area.tile == INVALID_TILE) return;
00734
00735
00736 TILE_AREA_LOOP(tile, area) {
00737 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00738 UpdateTownCargoes(t, tile, false);
00739 }
00740 }
00741
00742
00743 UpdateTownCargoTotal(t);
00744 }
00745
00747 void UpdateTownCargoBitmap()
00748 {
00749 Town *town;
00750 _town_cargoes_accepted = 0;
00751
00752 FOR_ALL_TOWNS(town) {
00753 _town_cargoes_accepted |= town->cargo_accepted_total;
00754 }
00755 }
00756
00757 static bool GrowTown(Town *t);
00758
00759 static void TownTickHandler(Town *t)
00760 {
00761 if (HasBit(t->flags, TOWN_IS_FUNDED)) {
00762 int i = t->grow_counter - 1;
00763 if (i < 0) {
00764 if (GrowTown(t)) {
00765 i = t->growth_rate & (~TOWN_GROW_RATE_CUSTOM);
00766 } else {
00767 i = 0;
00768 }
00769 }
00770 t->grow_counter = i;
00771 }
00772 }
00773
00774 void OnTick_Town()
00775 {
00776 if (_game_mode == GM_EDITOR) return;
00777
00778 Town *t;
00779 FOR_ALL_TOWNS(t) {
00780
00781 if ((_tick_counter + t->index) % TOWN_GROWTH_TICKS == 0) {
00782 TownTickHandler(t);
00783 }
00784 }
00785 }
00786
00795 static RoadBits GetTownRoadBits(TileIndex tile)
00796 {
00797 if (IsRoadDepotTile(tile) || IsStandardRoadStopTile(tile)) return ROAD_NONE;
00798
00799 return GetAnyRoadBits(tile, ROADTYPE_ROAD, true);
00800 }
00801
00812 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00813 {
00814 if (!IsValidTile(tile)) return false;
00815
00816
00817 const TileIndexDiff tid_lt[3] = {
00818 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00819 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00820 TileOffsByDiagDir(ReverseDiagDir(dir)),
00821 };
00822
00823 dist_multi = (dist_multi + 1) * 4;
00824 for (uint pos = 4; pos < dist_multi; pos++) {
00825
00826 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00827
00828
00829 if (pos & 2) cur += tid_lt[2];
00830
00831
00832 if (IsValidTile(tile + cur) &&
00833 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00834 }
00835 return false;
00836 }
00837
00846 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00847 {
00848 if (DistanceFromEdge(tile) == 0) return false;
00849
00850
00851 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && GetBridgeAxis(tile) == DiagDirToAxis(dir)) return false;
00852
00853
00854 if (GetTownRoadBits(tile) == ROAD_NONE) {
00855
00856
00857
00858 if (DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_Y : ROAD_X), 0, DC_AUTO, CMD_BUILD_ROAD).Failed() &&
00859 DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR).Failed()) {
00860 return false;
00861 }
00862 }
00863
00864 Slope cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile) : GetTileSlope(tile);
00865 bool ret = !IsNeighborRoadTile(tile, dir, t->layout == TL_ORIGINAL ? 1 : 2);
00866 if (cur_slope == SLOPE_FLAT) return ret;
00867
00868
00869
00870 Slope desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00871 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00872 if (Chance16(1, 8)) {
00873 CommandCost res = CMD_ERROR;
00874 if (!_generating_world && Chance16(1, 10)) {
00875
00876 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00877 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00878 }
00879 if (res.Failed() && Chance16(1, 3)) {
00880
00881 return ret;
00882 }
00883 }
00884 return false;
00885 }
00886 return ret;
00887 }
00888
00889 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00890 {
00891 assert(tile < MapSize());
00892
00893 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00894 if (r.Failed() || r.GetCost() >= (_price[PR_TERRAFORM] + 2) * 8) return false;
00895 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00896 return true;
00897 }
00898
00899 static void LevelTownLand(TileIndex tile)
00900 {
00901 assert(tile < MapSize());
00902
00903
00904 if (IsTileType(tile, MP_HOUSE)) return;
00905 Slope tileh = GetTileSlope(tile);
00906 if (tileh == SLOPE_FLAT) return;
00907
00908
00909 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00910 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00911 }
00912 }
00913
00923 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00924 {
00925
00926 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00927 RoadBits rcmd = ROAD_NONE;
00928
00929 switch (t->layout) {
00930 default: NOT_REACHED();
00931
00932 case TL_2X2_GRID:
00933 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00934 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00935 break;
00936
00937 case TL_3X3_GRID:
00938 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00939 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00940 break;
00941 }
00942
00943
00944 if (rcmd != ROAD_ALL) return rcmd;
00945
00946 RoadBits rb_template;
00947
00948 switch (GetTileSlope(tile)) {
00949 default: rb_template = ROAD_ALL; break;
00950 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00951 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00952 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00953 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00954 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00955 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00956 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00957 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00958 case SLOPE_STEEP_W:
00959 case SLOPE_STEEP_S:
00960 case SLOPE_STEEP_E:
00961 case SLOPE_STEEP_N:
00962 rb_template = ROAD_NONE;
00963 break;
00964 }
00965
00966
00967 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00968
00969 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00970 }
00971
00982 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00983 {
00984
00985 if (DistanceFromEdge(tile) == 0) return false;
00986
00987 uint counter = 0;
00988
00989
00990 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00991
00992
00993
00994 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
00995 case MP_HOUSE:
00996 case MP_VOID:
00997 counter++;
00998 break;
00999
01000 default:
01001 break;
01002 }
01003
01004
01005 if (counter >= 3) {
01006 if (BuildTownHouse(t, tile)) {
01007 _grow_town_result = GROWTH_SUCCEED;
01008 return true;
01009 }
01010 return false;
01011 }
01012 }
01013 return false;
01014 }
01015
01024 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
01025 {
01026 if (DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD).Succeeded()) {
01027 _grow_town_result = GROWTH_SUCCEED;
01028 return true;
01029 }
01030 return false;
01031 }
01032
01043 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
01044 {
01045 assert(bridge_dir < DIAGDIR_END);
01046
01047 const Slope slope = GetTileSlope(tile);
01048
01049
01050
01051
01052 if (slope != SLOPE_FLAT && slope & InclinedSlope(bridge_dir)) return false;
01053
01054
01055 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
01056
01057
01058 uint8 bridge_length = 0;
01059 TileIndex bridge_tile = tile;
01060
01061 const int delta = TileOffsByDiagDir(bridge_dir);
01062
01063 if (slope == SLOPE_FLAT) {
01064
01065 do {
01066 if (bridge_length++ >= 4) {
01067
01068 return false;
01069 }
01070 bridge_tile += delta;
01071 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile) && !IsSea(bridge_tile));
01072 } else {
01073 do {
01074 if (bridge_length++ >= 11) {
01075
01076 return false;
01077 }
01078 bridge_tile += delta;
01079 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile));
01080 }
01081
01082
01083 if (bridge_length == 1) return false;
01084
01085 for (uint8 times = 0; times <= 22; times++) {
01086 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
01087
01088
01089 if (DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE).Succeeded()) {
01090 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE);
01091 _grow_town_result = GROWTH_SUCCEED;
01092 return true;
01093 }
01094 }
01095
01096 return false;
01097 }
01098
01116 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01117 {
01118 RoadBits rcmd = ROAD_NONE;
01119 TileIndex tile = *tile_ptr;
01120
01121 assert(tile < MapSize());
01122
01123 if (cur_rb == ROAD_NONE) {
01124
01125
01126 _grow_town_result = GROWTH_SEARCH_STOPPED;
01127
01128 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01129 if (!_settings_game.economy.allow_town_level_crossings && IsTileType(tile, MP_RAILWAY)) return;
01130
01131
01132 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01133
01134
01135 switch (t1->layout) {
01136 default: NOT_REACHED();
01137
01138 case TL_3X3_GRID:
01139 case TL_2X2_GRID:
01140 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01141 if (rcmd == ROAD_NONE) return;
01142 break;
01143
01144 case TL_BETTER_ROADS:
01145 case TL_ORIGINAL:
01146 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01147
01148 DiagDirection source_dir = ReverseDiagDir(target_dir);
01149
01150 if (Chance16(1, 4)) {
01151
01152 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01153 }
01154
01155 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01156
01157
01158 if (target_dir != ReverseDiagDir(source_dir)) return;
01159
01160
01161 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01162 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01163 return;
01164 }
01165
01166
01167
01168 }
01169
01170 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01171 break;
01172 }
01173
01174 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01175
01176
01177
01178 _grow_town_result = GROWTH_SEARCH_STOPPED;
01179
01180 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01181
01182 switch (t1->layout) {
01183 default: NOT_REACHED();
01184
01185 case TL_3X3_GRID:
01186 case TL_2X2_GRID:
01187 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01188 break;
01189
01190 case TL_BETTER_ROADS:
01191 case TL_ORIGINAL:
01192 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01193 break;
01194 }
01195 } else {
01196 bool allow_house = true;
01197
01198
01199
01200 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01201 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD && (target_dir != DIAGDIR_END || Chance16(1, 2))) {
01202 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01203 }
01204 return;
01205 }
01206
01207
01208
01209 target_dir = RandomDiagDir();
01210 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01211
01212
01213 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01214
01215
01216 if (HasTileWaterGround(house_tile)) return;
01217
01218 if (!IsValidTile(house_tile)) return;
01219
01220 if (_settings_game.economy.allow_town_roads || _generating_world) {
01221 switch (t1->layout) {
01222 default: NOT_REACHED();
01223
01224 case TL_3X3_GRID:
01225 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01226
01227
01228 case TL_2X2_GRID:
01229 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01230 allow_house = (rcmd == ROAD_NONE);
01231 break;
01232
01233 case TL_BETTER_ROADS:
01234 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01235
01236
01237 case TL_ORIGINAL:
01238
01239
01240 rcmd = DiagDirToRoadBits(target_dir);
01241 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01242 break;
01243 }
01244 }
01245
01246 if (allow_house) {
01247
01248 if (!IsTileType(house_tile, MP_HOUSE)) {
01249
01250 if (Chance16(1, 6)) LevelTownLand(house_tile);
01251
01252
01253
01254 if (BuildTownHouse(t1, house_tile)) {
01255 _grow_town_result = GROWTH_SUCCEED;
01256 }
01257 }
01258 return;
01259 }
01260
01261 _grow_town_result = GROWTH_SEARCH_STOPPED;
01262 }
01263
01264
01265 if (HasTileWaterGround(tile)) return;
01266
01267
01268 rcmd = CleanUpRoadBits(tile, rcmd);
01269 if (rcmd == ROAD_NONE) return;
01270
01271
01272
01273
01274 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01275
01276 GrowTownWithRoad(t1, tile, rcmd);
01277 }
01278
01285 static int GrowTownAtRoad(Town *t, TileIndex tile)
01286 {
01287
01288
01289
01290 DiagDirection target_dir = DIAGDIR_END;
01291
01292 assert(tile < MapSize());
01293
01294
01295
01296
01297 switch (t->layout) {
01298 case TL_BETTER_ROADS:
01299 _grow_town_result = 10 + t->cache.num_houses * 2 / 9;
01300 break;
01301
01302 case TL_3X3_GRID:
01303 case TL_2X2_GRID:
01304 _grow_town_result = 10 + t->cache.num_houses * 1 / 9;
01305 break;
01306
01307 default:
01308 _grow_town_result = 10 + t->cache.num_houses * 4 / 9;
01309 break;
01310 }
01311
01312 do {
01313 RoadBits cur_rb = GetTownRoadBits(tile);
01314
01315
01316 GrowTownInTile(&tile, cur_rb, target_dir, t);
01317
01318
01319
01320 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01321 if (cur_rb == ROAD_NONE) {
01322 return _grow_town_result;
01323 }
01324
01325 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01326
01327 target_dir = ReverseDiagDir(GetTunnelBridgeDirection(tile));
01328 } else {
01329
01330
01331 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01332 }
01333 tile = TileAddByDiagDir(tile, target_dir);
01334
01335 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01336
01337 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && Town::GetByTile(tile) != t) {
01338 _grow_town_result = GROWTH_SUCCEED;
01339 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01340
01341
01342 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01343 SetTownIndex(tile, t->index);
01344 }
01345 }
01346
01347
01348 } while (--_grow_town_result >= 0);
01349
01350 return (_grow_town_result == -2);
01351 }
01352
01360 static RoadBits GenRandomRoadBits()
01361 {
01362 uint32 r = Random();
01363 uint a = GB(r, 0, 2);
01364 uint b = GB(r, 8, 2);
01365 if (a == b) b ^= 2;
01366 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01367 }
01368
01374 static bool GrowTown(Town *t)
01375 {
01376 static const TileIndexDiffC _town_coord_mod[] = {
01377 {-1, 0},
01378 { 1, 1},
01379 { 1, -1},
01380 {-1, -1},
01381 {-1, 0},
01382 { 0, 2},
01383 { 2, 0},
01384 { 0, -2},
01385 {-1, -1},
01386 {-2, 2},
01387 { 2, 2},
01388 { 2, -2},
01389 { 0, 0}
01390 };
01391
01392
01393 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01394
01395 TileIndex tile = t->xy;
01396
01397
01398 const TileIndexDiffC *ptr;
01399 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01400 if (GetTownRoadBits(tile) != ROAD_NONE) {
01401 int r = GrowTownAtRoad(t, tile);
01402 cur_company.Restore();
01403 return r != 0;
01404 }
01405 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01406 }
01407
01408
01409
01410 if (_settings_game.economy.allow_town_roads || _generating_world) {
01411 tile = t->xy;
01412 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01413
01414 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile) == SLOPE_FLAT) {
01415 if (DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded()) {
01416 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01417 cur_company.Restore();
01418 return true;
01419 }
01420 }
01421 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01422 }
01423 }
01424
01425 cur_company.Restore();
01426 return false;
01427 }
01428
01429 void UpdateTownRadius(Town *t)
01430 {
01431 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01432 { 4, 0, 0, 0, 0},
01433 { 16, 0, 0, 0, 0},
01434 { 25, 0, 0, 0, 0},
01435 { 36, 0, 0, 0, 0},
01436 { 49, 0, 4, 0, 0},
01437 { 64, 0, 4, 0, 0},
01438 { 64, 0, 9, 0, 1},
01439 { 64, 0, 9, 0, 4},
01440 { 64, 0, 16, 0, 4},
01441 { 81, 0, 16, 0, 4},
01442 { 81, 0, 16, 0, 4},
01443 { 81, 0, 25, 0, 9},
01444 { 81, 36, 25, 0, 9},
01445 { 81, 36, 25, 16, 9},
01446 { 81, 49, 0, 25, 9},
01447 { 81, 64, 0, 25, 9},
01448 { 81, 64, 0, 36, 9},
01449 { 81, 64, 0, 36, 16},
01450 {100, 81, 0, 49, 16},
01451 {100, 81, 0, 49, 25},
01452 {121, 81, 0, 49, 25},
01453 {121, 81, 0, 49, 25},
01454 {121, 81, 0, 49, 36},
01455 };
01456
01457 if (t->cache.num_houses < 92) {
01458 memcpy(t->cache.squared_town_zone_radius, _town_squared_town_zone_radius_data[t->cache.num_houses / 4], sizeof(t->cache.squared_town_zone_radius));
01459 } else {
01460 int mass = t->cache.num_houses / 8;
01461
01462
01463
01464 t->cache.squared_town_zone_radius[0] = mass * 15 - 40;
01465 t->cache.squared_town_zone_radius[1] = mass * 9 - 15;
01466 t->cache.squared_town_zone_radius[2] = 0;
01467 t->cache.squared_town_zone_radius[3] = mass * 5 - 5;
01468 t->cache.squared_town_zone_radius[4] = mass * 3 + 5;
01469 }
01470 }
01471
01472 void UpdateTownMaxPass(Town *t)
01473 {
01474 t->supplied[CT_PASSENGERS].old_max = t->cache.population >> 3;
01475 t->supplied[CT_MAIL].old_max = t->cache.population >> 4;
01476 }
01477
01489 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
01490 {
01491 t->xy = tile;
01492 t->cache.num_houses = 0;
01493 t->time_until_rebuild = 10;
01494 UpdateTownRadius(t);
01495 t->flags = 0;
01496 t->cache.population = 0;
01497 t->grow_counter = 0;
01498 t->growth_rate = 250;
01499
01500
01501 switch (_settings_game.game_creation.landscape) {
01502 case LT_ARCTIC:
01503 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
01504 break;
01505
01506 case LT_TROPIC:
01507 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
01508 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
01509 break;
01510 }
01511
01512 t->fund_buildings_months = 0;
01513
01514 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01515
01516 t->have_ratings = 0;
01517 t->exclusivity = INVALID_COMPANY;
01518 t->exclusive_counter = 0;
01519 t->statues = 0;
01520
01521 extern int _nb_orig_names;
01522 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01523
01524 t->townnamegrfid = 0;
01525 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01526 } else {
01527
01528 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01529 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01530 }
01531 t->townnameparts = townnameparts;
01532
01533 t->UpdateVirtCoord();
01534 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01535
01536 t->InitializeLayout(layout);
01537
01538 t->larger_town = city;
01539
01540 int x = (int)size * 16 + 3;
01541 if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
01542
01543 if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;
01544
01545 t->cache.num_houses += x;
01546 UpdateTownRadius(t);
01547
01548 int i = x * 4;
01549 do {
01550 GrowTown(t);
01551 } while (--i);
01552
01553 t->cache.num_houses -= x;
01554 UpdateTownRadius(t);
01555 UpdateTownMaxPass(t);
01556 UpdateAirportsNoise();
01557 }
01558
01564 static CommandCost TownCanBePlacedHere(TileIndex tile)
01565 {
01566
01567 if (DistanceFromEdge(tile) < 12) {
01568 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB);
01569 }
01570
01571
01572 if (IsCloseToTown(tile, 20)) {
01573 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN);
01574 }
01575
01576
01577 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile) != SLOPE_FLAT) {
01578 return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
01579 }
01580
01581 return CommandCost(EXPENSES_OTHER);
01582 }
01583
01589 static bool IsUniqueTownName(const char *name)
01590 {
01591 const Town *t;
01592
01593 FOR_ALL_TOWNS(t) {
01594 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
01595 }
01596
01597 return true;
01598 }
01599
01612 CommandCost CmdFoundTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01613 {
01614 TownSize size = Extract<TownSize, 0, 2>(p1);
01615 bool city = HasBit(p1, 2);
01616 TownLayout layout = Extract<TownLayout, 3, 3>(p1);
01617 TownNameParams par(_settings_game.game_creation.town_name);
01618 bool random = HasBit(p1, 6);
01619 uint32 townnameparts = p2;
01620
01621 if (size >= TSZ_END) return CMD_ERROR;
01622 if (layout >= NUM_TLS) return CMD_ERROR;
01623
01624
01625 if (_game_mode != GM_EDITOR) {
01626 if (_settings_game.economy.found_town == TF_FORBIDDEN) return CMD_ERROR;
01627 if (size == TSZ_LARGE) return CMD_ERROR;
01628 if (random) return CMD_ERROR;
01629 if (_settings_game.economy.found_town != TF_CUSTOM_LAYOUT && layout != _settings_game.economy.town_layout) {
01630 return CMD_ERROR;
01631 }
01632 }
01633
01634 if (StrEmpty(text)) {
01635
01636 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01637 } else {
01638
01639 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
01640 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01641 }
01642
01643
01644 if (!Town::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_TOWNS);
01645
01646 if (!random) {
01647 CommandCost ret = TownCanBePlacedHere(tile);
01648 if (ret.Failed()) return ret;
01649 }
01650
01651 static const byte price_mult[][TSZ_RANDOM + 1] = {{ 15, 25, 40, 25 }, { 20, 35, 55, 35 }};
01652
01653 assert_compile(lengthof(price_mult[0]) == 4);
01654
01655 CommandCost cost(EXPENSES_OTHER, _price[PR_BUILD_TOWN]);
01656 byte mult = price_mult[city][size];
01657
01658 cost.MultiplyCost(mult);
01659
01660
01661 if (flags & DC_EXEC) {
01662 if (cost.GetCost() > GetAvailableMoneyForCommand()) {
01663 _additional_cash_required = cost.GetCost();
01664 return CommandCost(EXPENSES_OTHER);
01665 }
01666
01667 _generating_world = true;
01668 UpdateNearestTownForRoadTiles(true);
01669 Town *t;
01670 if (random) {
01671 t = CreateRandomTown(20, townnameparts, size, city, layout);
01672 if (t == NULL) {
01673 cost = CommandCost(STR_ERROR_NO_SPACE_FOR_TOWN);
01674 } else {
01675 _new_town_id = t->index;
01676 }
01677 } else {
01678 t = new Town(tile);
01679 DoCreateTown(t, tile, townnameparts, size, city, layout, true);
01680 }
01681 UpdateNearestTownForRoadTiles(false);
01682 _generating_world = false;
01683
01684 if (t != NULL && !StrEmpty(text)) {
01685 t->name = strdup(text);
01686 t->UpdateVirtCoord();
01687 }
01688
01689 if (_game_mode != GM_EDITOR) {
01690
01691 assert(!random);
01692 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
01693 SetDParam(0, _current_company);
01694 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
01695
01696 char *cn = strdup(company_name);
01697 SetDParamStr(0, cn);
01698 SetDParam(1, t->index);
01699
01700 AddTileNewsItem(STR_NEWS_NEW_TOWN, NT_INDUSTRY_OPEN, tile, cn);
01701 AI::BroadcastNewEvent(new ScriptEventTownFounded(t->index));
01702 Game::NewEvent(new ScriptEventTownFounded(t->index));
01703 }
01704 }
01705 return cost;
01706 }
01707
01717 static TileIndex AlignTileToGrid(TileIndex tile, TownLayout layout)
01718 {
01719 switch (layout) {
01720 case TL_2X2_GRID: return TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01721 case TL_3X3_GRID: return TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01722 default: return tile;
01723 }
01724 }
01725
01735 static bool IsTileAlignedToGrid(TileIndex tile, TownLayout layout)
01736 {
01737 switch (layout) {
01738 case TL_2X2_GRID: return TileX(tile) % 3 == 0 && TileY(tile) % 3 == 0;
01739 case TL_3X3_GRID: return TileX(tile) % 4 == 0 && TileY(tile) % 4 == 0;
01740 default: return true;
01741 }
01742 }
01743
01747 struct SpotData {
01748 TileIndex tile;
01749 uint max_dist;
01750 TownLayout layout;
01751 };
01752
01769 static bool FindFurthestFromWater(TileIndex tile, void *user_data)
01770 {
01771 SpotData *sp = (SpotData*)user_data;
01772 uint dist = GetClosestWaterDistance(tile, true);
01773
01774 if (IsTileType(tile, MP_CLEAR) &&
01775 GetTileSlope(tile) == SLOPE_FLAT &&
01776 IsTileAlignedToGrid(tile, sp->layout) &&
01777 dist > sp->max_dist) {
01778 sp->tile = tile;
01779 sp->max_dist = dist;
01780 }
01781
01782 return false;
01783 }
01784
01791 static bool FindNearestEmptyLand(TileIndex tile, void *user_data)
01792 {
01793 return IsTileType(tile, MP_CLEAR);
01794 }
01795
01808 static TileIndex FindNearestGoodCoastalTownSpot(TileIndex tile, TownLayout layout)
01809 {
01810 SpotData sp = { INVALID_TILE, 0, layout };
01811
01812 TileIndex coast = tile;
01813 if (CircularTileSearch(&coast, 40, FindNearestEmptyLand, NULL)) {
01814 CircularTileSearch(&coast, 10, FindFurthestFromWater, &sp);
01815 return sp.tile;
01816 }
01817
01818
01819 return INVALID_TILE;
01820 }
01821
01822 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01823 {
01824 assert(_game_mode == GM_EDITOR || _generating_world);
01825
01826 if (!Town::CanAllocateItem()) return NULL;
01827
01828 do {
01829
01830 TileIndex tile = AlignTileToGrid(RandomTile(), layout);
01831
01832
01833
01834 if (IsTileType(tile, MP_WATER)) {
01835 tile = FindNearestGoodCoastalTownSpot(tile, layout);
01836 if (tile == INVALID_TILE) continue;
01837 }
01838
01839
01840 if (TownCanBePlacedHere(tile).Failed()) continue;
01841
01842
01843 Town *t = new Town(tile);
01844
01845 DoCreateTown(t, tile, townnameparts, size, city, layout, false);
01846
01847
01848
01849 if (t->cache.population > 0) return t;
01850 CommandCost rc = DoCommand(t->xy, t->index, 0, DC_EXEC, CMD_DELETE_TOWN);
01851 assert(rc.Succeeded());
01852
01853
01854
01855
01856
01857 assert(Town::CanAllocateItem());
01858 } while (--attempts != 0);
01859
01860 return NULL;
01861 }
01862
01863 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01864
01872 bool GenerateTowns(TownLayout layout)
01873 {
01874 uint current_number = 0;
01875 uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_towns : 0;
01876 uint total = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01877 uint32 townnameparts;
01878
01879 SetGeneratingWorldProgress(GWP_TOWN, total);
01880
01881
01882
01883
01884 do {
01885 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01886 IncreaseGeneratingWorldProgress(GWP_TOWN);
01887
01888 if (!GenerateTownName(&townnameparts)) continue;
01889
01890 if (CreateRandomTown(20, townnameparts, TSZ_RANDOM, city, layout) != NULL) current_number++;
01891 } while (--total);
01892
01893 if (current_number != 0) return true;
01894
01895
01896
01897 if (GenerateTownName(&townnameparts) &&
01898 CreateRandomTown(10000, townnameparts, TSZ_RANDOM, _settings_game.economy.larger_towns != 0, layout) != NULL) {
01899 return true;
01900 }
01901
01902
01903 if (Town::GetNumItems() == 0 && _game_mode != GM_EDITOR) {
01904 ShowErrorMessage(STR_ERROR_COULD_NOT_CREATE_TOWN, INVALID_STRING_ID, WL_CRITICAL);
01905 }
01906
01907 return false;
01908 }
01909
01910
01917 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01918 {
01919 uint dist = DistanceSquare(tile, t->xy);
01920
01921 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01922
01923 HouseZonesBits smallest = HZB_TOWN_EDGE;
01924 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01925 if (dist < t->cache.squared_town_zone_radius[i]) smallest = i;
01926 }
01927
01928 return smallest;
01929 }
01930
01941 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01942 {
01943 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01944
01945 assert(cc.Succeeded());
01946
01947 IncreaseBuildingCount(t, type);
01948 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01949 if (HouseSpec::Get(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01950
01951 MarkTileDirtyByTile(tile);
01952 }
01953
01954
01965 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01966 {
01967 BuildingFlags size = HouseSpec::Get(type)->building_flags;
01968
01969 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01970 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01971 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01972 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01973 }
01974
01975
01984 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01985 {
01986
01987 Slope slope = GetTileSlope(tile);
01988 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01989
01990
01991 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01992
01993
01994 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01995
01996
01997 return DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded();
01998 }
01999
02000
02010 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, int z, bool noslope)
02011 {
02012 if (!CanBuildHouseHere(tile, town, noslope)) return false;
02013
02014
02015 if (GetTileMaxZ(tile) != z) return false;
02016
02017 return true;
02018 }
02019
02020
02030 static bool CheckFree2x2Area(TileIndex tile, TownID town, int z, bool noslope)
02031 {
02032
02033 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02034
02035 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
02036 tile += TileOffsByDiagDir(d);
02037 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02038 }
02039
02040 return true;
02041 }
02042
02043
02051 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
02052 {
02053
02054 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02055
02056 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02057
02058 switch (t->layout) {
02059 case TL_2X2_GRID:
02060 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
02061 break;
02062
02063 case TL_3X3_GRID:
02064 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
02065 break;
02066
02067 default:
02068 break;
02069 }
02070
02071 return true;
02072 }
02073
02074
02082 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
02083 {
02084
02085 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02086
02087
02088 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02089
02090 switch (t->layout) {
02091 case TL_2X2_GRID:
02092 grid_pos.x %= 3;
02093 grid_pos.y %= 3;
02094 if ((grid_pos.x != 2 && grid_pos.x != -1) ||
02095 (grid_pos.y != 2 && grid_pos.y != -1)) return false;
02096 break;
02097
02098 case TL_3X3_GRID:
02099 if ((grid_pos.x & 3) < 2 || (grid_pos.y & 3) < 2) return false;
02100 break;
02101
02102 default:
02103 break;
02104 }
02105
02106 return true;
02107 }
02108
02109
02119 static bool CheckTownBuild2House(TileIndex *tile, Town *t, int maxz, bool noslope, DiagDirection second)
02120 {
02121
02122
02123 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
02124 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
02125
02126 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
02127 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
02128 *tile = tile2;
02129 return true;
02130 }
02131
02132 return false;
02133 }
02134
02135
02144 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, int maxz, bool noslope)
02145 {
02146 TileIndex tile2 = *tile;
02147
02148 for (DiagDirection d = DIAGDIR_SE;; d++) {
02149 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
02150 *tile = tile2;
02151 return true;
02152 }
02153 if (d == DIAGDIR_END) break;
02154 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
02155 }
02156
02157 return false;
02158 }
02159
02160
02167 static bool BuildTownHouse(Town *t, TileIndex tile)
02168 {
02169
02170 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
02171
02172
02173 if (!CanBuildHouseHere(tile, t->index, false)) return false;
02174
02175 Slope slope = GetTileSlope(tile);
02176 int maxz = GetTileMaxZ(tile);
02177
02178
02179
02180 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
02181
02182
02183 int land = _settings_game.game_creation.landscape;
02184 if (land == LT_ARCTIC && maxz > HighestSnowLine()) land = -1;
02185
02186 uint bitmask = (1 << rad) + (1 << (land + 12));
02187
02188
02189
02190
02191 HouseID houses[HOUSE_MAX];
02192 uint num = 0;
02193 uint probs[HOUSE_MAX];
02194 uint probability_max = 0;
02195
02196
02197 for (uint i = 0; i < HOUSE_MAX; i++) {
02198 const HouseSpec *hs = HouseSpec::Get(i);
02199
02200
02201 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled || hs->grf_prop.override != INVALID_HOUSE_ID) continue;
02202
02203
02204 if (hs->class_id != HOUSE_NO_CLASS) {
02205
02206 if (t->cache.building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
02207 } else {
02208
02209 if (t->cache.building_counts.id_count[i] == UINT16_MAX) continue;
02210 }
02211
02212
02213 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
02214 probability_max += cur_prob;
02215 probs[num] = cur_prob;
02216 houses[num++] = (HouseID)i;
02217 }
02218
02219 TileIndex baseTile = tile;
02220
02221 while (probability_max > 0) {
02222
02223
02224
02225
02226
02227 tile = baseTile;
02228
02229 uint r = RandomRange(probability_max);
02230 uint i;
02231 for (i = 0; i < num; i++) {
02232 if (probs[i] > r) break;
02233 r -= probs[i];
02234 }
02235
02236 HouseID house = houses[i];
02237 probability_max -= probs[i];
02238
02239
02240 num--;
02241 houses[i] = houses[num];
02242 probs[i] = probs[num];
02243
02244 const HouseSpec *hs = HouseSpec::Get(house);
02245
02246 if (_loaded_newgrf_features.has_newhouses && !_generating_world &&
02247 _game_mode != GM_EDITOR && (hs->extra_flags & BUILDING_IS_HISTORICAL) != 0) {
02248 continue;
02249 }
02250
02251 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02252
02253
02254 uint oneof = 0;
02255
02256 if (hs->building_flags & BUILDING_IS_CHURCH) {
02257 SetBit(oneof, TOWN_HAS_CHURCH);
02258 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02259 SetBit(oneof, TOWN_HAS_STADIUM);
02260 }
02261
02262 if (t->flags & oneof) continue;
02263
02264
02265 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02266 if (noslope && slope != SLOPE_FLAT) continue;
02267
02268 if (hs->building_flags & TILE_SIZE_2x2) {
02269 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02270 } else if (hs->building_flags & TILE_SIZE_2x1) {
02271 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02272 } else if (hs->building_flags & TILE_SIZE_1x2) {
02273 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02274 } else {
02275
02276 }
02277
02278 byte random_bits = Random();
02279
02280 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02281 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile, true, random_bits);
02282 if (callback_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_ALLOW_CONSTRUCTION, callback_res)) continue;
02283 }
02284
02285
02286 t->cache.num_houses++;
02287
02288
02289 t->flags |= oneof;
02290
02291 byte construction_counter = 0;
02292 byte construction_stage = 0;
02293
02294 if (_generating_world || _game_mode == GM_EDITOR) {
02295 uint32 r = Random();
02296
02297 construction_stage = TOWN_HOUSE_COMPLETED;
02298 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02299
02300 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02301 ChangePopulation(t, hs->population);
02302 } else {
02303 construction_counter = GB(r, 2, 2);
02304 }
02305 }
02306
02307 MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
02308 UpdateTownRadius(t);
02309 UpdateTownCargoes(t, tile);
02310
02311 return true;
02312 }
02313
02314 return false;
02315 }
02316
02323 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02324 {
02325 assert(IsTileType(tile, MP_HOUSE));
02326 DecreaseBuildingCount(t, house);
02327 DoClearSquare(tile);
02328 DeleteAnimatedTile(tile);
02329
02330 DeleteNewGRFInspectWindow(GSF_HOUSES, tile);
02331 }
02332
02340 TileIndexDiff GetHouseNorthPart(HouseID &house)
02341 {
02342 if (house >= 3) {
02343 if (HouseSpec::Get(house - 1)->building_flags & TILE_SIZE_2x1) {
02344 house--;
02345 return TileDiffXY(-1, 0);
02346 } else if (HouseSpec::Get(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02347 house--;
02348 return TileDiffXY(0, -1);
02349 } else if (HouseSpec::Get(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02350 house -= 2;
02351 return TileDiffXY(-1, 0);
02352 } else if (HouseSpec::Get(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02353 house -= 3;
02354 return TileDiffXY(-1, -1);
02355 }
02356 }
02357 return 0;
02358 }
02359
02360 void ClearTownHouse(Town *t, TileIndex tile)
02361 {
02362 assert(IsTileType(tile, MP_HOUSE));
02363
02364 HouseID house = GetHouseType(tile);
02365
02366
02367 tile += GetHouseNorthPart(house);
02368
02369 const HouseSpec *hs = HouseSpec::Get(house);
02370
02371
02372 if (IsHouseCompleted(tile)) {
02373 ChangePopulation(t, -hs->population);
02374 }
02375
02376 t->cache.num_houses--;
02377
02378
02379 if (hs->building_flags & BUILDING_IS_CHURCH) {
02380 ClrBit(t->flags, TOWN_HAS_CHURCH);
02381 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02382 ClrBit(t->flags, TOWN_HAS_STADIUM);
02383 }
02384
02385
02386 uint eflags = hs->building_flags;
02387 DoClearTownHouseHelper(tile, t, house);
02388 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02389 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02390 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02391
02392 UpdateTownRadius(t);
02393
02394
02395 UpdateTownCargoes(t, tile);
02396 }
02397
02407 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02408 {
02409 Town *t = Town::GetIfValid(p1);
02410 if (t == NULL) return CMD_ERROR;
02411
02412 bool reset = StrEmpty(text);
02413
02414 if (!reset) {
02415 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
02416 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
02417 }
02418
02419 if (flags & DC_EXEC) {
02420 free(t->name);
02421 t->name = reset ? NULL : strdup(text);
02422
02423 t->UpdateVirtCoord();
02424 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02425 UpdateAllStationVirtCoords();
02426 }
02427 return CommandCost();
02428 }
02429
02435 const CargoSpec *FindFirstCargoWithTownEffect(TownEffect effect)
02436 {
02437 const CargoSpec *cs;
02438 FOR_ALL_CARGOSPECS(cs) {
02439 if (cs->town_effect == effect) return cs;
02440 }
02441 return NULL;
02442 }
02443
02444 static void UpdateTownGrowRate(Town *t);
02445
02457 CommandCost CmdTownCargoGoal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02458 {
02459 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02460
02461 TownEffect te = (TownEffect)GB(p1, 16, 8);
02462 if (te < TE_BEGIN || te > TE_END) return CMD_ERROR;
02463
02464 uint16 index = GB(p1, 0, 16);
02465 Town *t = Town::GetIfValid(index);
02466 if (t == NULL) return CMD_ERROR;
02467
02468
02469 const CargoSpec *cargo = FindFirstCargoWithTownEffect(te);
02470 if (cargo == NULL) return CMD_ERROR;
02471
02472 if (flags & DC_EXEC) {
02473 t->goal[te] = p2;
02474 UpdateTownGrowRate(t);
02475 InvalidateWindowData(WC_TOWN_VIEW, index);
02476 }
02477
02478 return CommandCost();
02479 }
02480
02490 CommandCost CmdTownSetText(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02491 {
02492 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02493 Town *t = Town::GetIfValid(p1);
02494 if (t == NULL) return CMD_ERROR;
02495
02496 if (flags & DC_EXEC) {
02497 free(t->text);
02498 t->text = StrEmpty(text) ? NULL : strdup(text);
02499 InvalidateWindowData(WC_TOWN_VIEW, p1);
02500 }
02501
02502 return CommandCost();
02503 }
02504
02514 CommandCost CmdTownGrowthRate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02515 {
02516 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02517 if ((p2 & TOWN_GROW_RATE_CUSTOM) != 0) return CMD_ERROR;
02518 if (GB(p2, 16, 16) != 0) return CMD_ERROR;
02519
02520 Town *t = Town::GetIfValid(p1);
02521 if (t == NULL) return CMD_ERROR;
02522
02523 if (flags & DC_EXEC) {
02524 t->growth_rate = (p2 == 0) ? 0 : p2 | TOWN_GROW_RATE_CUSTOM;
02525 UpdateTownGrowRate(t);
02526 InvalidateWindowData(WC_TOWN_VIEW, p1);
02527 }
02528
02529 return CommandCost();
02530 }
02531
02541 CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02542 {
02543 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) return CMD_ERROR;
02544 Town *t = Town::GetIfValid(p1);
02545 if (t == NULL) return CMD_ERROR;
02546
02547 if (flags & DC_EXEC) {
02548
02549 if (p2 == 0) {
02550 uint amount = RandomRange(ClampToU16(t->cache.num_houses / 10)) + 3;
02551 t->cache.num_houses += amount;
02552 UpdateTownRadius(t);
02553
02554 uint n = amount * 10;
02555 do GrowTown(t); while (--n);
02556
02557 t->cache.num_houses -= amount;
02558 } else {
02559 for (; p2 > 0; p2--) {
02560
02561 for (uint i = 0; i < 25; i++) if (GrowTown(t)) break;
02562 }
02563 }
02564 UpdateTownRadius(t);
02565
02566 UpdateTownMaxPass(t);
02567 }
02568
02569 return CommandCost();
02570 }
02571
02581 CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02582 {
02583 if (_game_mode != GM_EDITOR && !_generating_world) return CMD_ERROR;
02584 Town *t = Town::GetIfValid(p1);
02585 if (t == NULL) return CMD_ERROR;
02586
02587
02588 const Station *st;
02589 FOR_ALL_STATIONS(st) {
02590 if (st->town == t) {
02591
02592 if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
02593
02594 CommandCost ret = DoCommand(st->airport.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02595 if (ret.Failed()) return ret;
02596 }
02597 }
02598
02599
02600 const Depot *d;
02601 FOR_ALL_DEPOTS(d) {
02602 if (d->town == t) return CMD_ERROR;
02603 }
02604
02605
02606 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
02607 bool try_clear = false;
02608 switch (GetTileType(tile)) {
02609 case MP_ROAD:
02610 try_clear = HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index;
02611 break;
02612
02613 case MP_TUNNELBRIDGE:
02614 try_clear = IsTileOwner(tile, OWNER_TOWN) && ClosestTownFromTile(tile, UINT_MAX) == t;
02615 break;
02616
02617 case MP_HOUSE:
02618 try_clear = GetTownIndex(tile) == t->index;
02619 break;
02620
02621 case MP_INDUSTRY:
02622 try_clear = Industry::GetByTile(tile)->town == t;
02623 break;
02624
02625 case MP_OBJECT:
02626 if (Town::GetNumItems() == 1) {
02627
02628 try_clear = true;
02629 } else {
02630 Object *o = Object::GetByTile(tile);
02631 if (o->town == t) {
02632 if (GetObjectType(tile) == OBJECT_STATUE) {
02633
02634 try_clear = true;
02635 } else {
02636
02637 if (flags & DC_EXEC) o->town = NULL;
02638 }
02639 }
02640 }
02641 break;
02642
02643 default:
02644 break;
02645 }
02646 if (try_clear) {
02647 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02648 if (ret.Failed()) return ret;
02649 }
02650 }
02651
02652
02653 if (flags & DC_EXEC) delete t;
02654
02655 return CommandCost();
02656 }
02657
02662 const byte _town_action_costs[TACT_COUNT] = {
02663 2, 4, 9, 35, 48, 53, 117, 175
02664 };
02665
02666 static CommandCost TownActionAdvertiseSmall(Town *t, DoCommandFlag flags)
02667 {
02668 if (flags & DC_EXEC) {
02669 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02670 }
02671 return CommandCost();
02672 }
02673
02674 static CommandCost TownActionAdvertiseMedium(Town *t, DoCommandFlag flags)
02675 {
02676 if (flags & DC_EXEC) {
02677 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02678 }
02679 return CommandCost();
02680 }
02681
02682 static CommandCost TownActionAdvertiseLarge(Town *t, DoCommandFlag flags)
02683 {
02684 if (flags & DC_EXEC) {
02685 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02686 }
02687 return CommandCost();
02688 }
02689
02690 static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlag flags)
02691 {
02692
02693 if (!_settings_game.economy.fund_roads) return CMD_ERROR;
02694
02695 if (flags & DC_EXEC) {
02696 t->road_build_months = 6;
02697
02698 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
02699 SetDParam(0, _current_company);
02700 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02701
02702 char *cn = strdup(company_name);
02703 SetDParam(0, t->index);
02704 SetDParamStr(1, cn);
02705
02706 AddNewsItem(STR_NEWS_ROAD_REBUILDING, NT_GENERAL, NF_NORMAL, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cn);
02707 AI::BroadcastNewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02708 Game::NewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02709 }
02710 return CommandCost();
02711 }
02712
02718 static bool TryClearTile(TileIndex tile)
02719 {
02720 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02721 CommandCost r = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
02722 cur_company.Restore();
02723 return r.Succeeded();
02724 }
02725
02727 struct StatueBuildSearchData {
02728 TileIndex best_position;
02729 int tile_count;
02730
02731 StatueBuildSearchData(TileIndex best_pos, int count) : best_position(best_pos), tile_count(count) { }
02732 };
02733
02740 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02741 {
02742 static const int STATUE_NUMBER_INNER_TILES = 25;
02743
02744 StatueBuildSearchData *statue_data = (StatueBuildSearchData *)user_data;
02745 statue_data->tile_count++;
02746
02747
02748 if (IsSteepSlope(GetTileSlope(tile))) return false;
02749
02750 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02751
02752
02753 if ((IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES)) && TryClearTile(tile)) {
02754 statue_data->best_position = tile;
02755 return true;
02756 }
02757
02758 bool house = IsTileType(tile, MP_HOUSE);
02759
02760
02761 if (statue_data->tile_count <= STATUE_NUMBER_INNER_TILES) {
02762
02763 if (house && statue_data->best_position == INVALID_TILE && TryClearTile(tile)) {
02764 statue_data->best_position = tile;
02765 }
02766
02767
02768 return statue_data->tile_count == STATUE_NUMBER_INNER_TILES && statue_data->best_position != INVALID_TILE;
02769 }
02770
02771
02772 statue_data->best_position = tile;
02773 return house && TryClearTile(tile);
02774 }
02775
02783 static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
02784 {
02785 if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS);
02786
02787 TileIndex tile = t->xy;
02788 StatueBuildSearchData statue_data(INVALID_TILE, 0);
02789 if (!CircularTileSearch(&tile, 9, SearchTileForStatue, &statue_data)) return_cmd_error(STR_ERROR_STATUE_NO_SUITABLE_PLACE);
02790
02791 if (flags & DC_EXEC) {
02792 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02793 DoCommand(statue_data.best_position, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02794 cur_company.Restore();
02795 BuildObject(OBJECT_STATUE, statue_data.best_position, _current_company, t);
02796 SetBit(t->statues, _current_company);
02797 MarkTileDirtyByTile(statue_data.best_position);
02798 }
02799 return CommandCost();
02800 }
02801
02802 static CommandCost TownActionFundBuildings(Town *t, DoCommandFlag flags)
02803 {
02804
02805 if (!_settings_game.economy.fund_buildings) return CMD_ERROR;
02806
02807 if (flags & DC_EXEC) {
02808
02809 t->grow_counter = 1;
02810
02811 SetBit(t->flags, TOWN_IS_FUNDED);
02812
02813 t->fund_buildings_months = 3;
02814
02815 SetWindowDirty(WC_TOWN_VIEW, t->index);
02816 }
02817 return CommandCost();
02818 }
02819
02820 static CommandCost TownActionBuyRights(Town *t, DoCommandFlag flags)
02821 {
02822
02823 if (!_settings_game.economy.exclusive_rights) return CMD_ERROR;
02824
02825 if (flags & DC_EXEC) {
02826 t->exclusive_counter = 12;
02827 t->exclusivity = _current_company;
02828
02829 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02830
02831 SetWindowClassesDirty(WC_STATION_VIEW);
02832
02833
02834 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
02835 cni->FillData(Company::Get(_current_company));
02836 SetDParam(0, STR_NEWS_EXCLUSIVE_RIGHTS_TITLE);
02837 SetDParam(1, STR_NEWS_EXCLUSIVE_RIGHTS_DESCRIPTION);
02838 SetDParam(2, t->index);
02839 SetDParamStr(3, cni->company_name);
02840 AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NT_GENERAL, NF_COMPANY, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cni);
02841 AI::BroadcastNewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02842 Game::NewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02843 }
02844 return CommandCost();
02845 }
02846
02847 static CommandCost TownActionBribe(Town *t, DoCommandFlag flags)
02848 {
02849 if (flags & DC_EXEC) {
02850 if (Chance16(1, 14)) {
02851
02852 t->unwanted[_current_company] = 6;
02853
02854
02855 Station *st;
02856 FOR_ALL_STATIONS(st) {
02857 if (st->town == t && st->owner == _current_company) {
02858 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02859 }
02860 }
02861
02862
02863
02864 if (IsLocalCompany()) ShowErrorMessage(STR_ERROR_BRIBE_FAILED, INVALID_STRING_ID, WL_INFO);
02865
02866
02867
02868
02869
02870 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02871 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02872 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02873 }
02874 } else {
02875 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02876 }
02877 }
02878 return CommandCost();
02879 }
02880
02881 typedef CommandCost TownActionProc(Town *t, DoCommandFlag flags);
02882 static TownActionProc * const _town_action_proc[] = {
02883 TownActionAdvertiseSmall,
02884 TownActionAdvertiseMedium,
02885 TownActionAdvertiseLarge,
02886 TownActionRoadRebuild,
02887 TownActionBuildStatue,
02888 TownActionFundBuildings,
02889 TownActionBuyRights,
02890 TownActionBribe
02891 };
02892
02900 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02901 {
02902 int num = 0;
02903 TownActions buttons = TACT_NONE;
02904
02905
02906 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02907
02908
02909 Money avail = Company::Get(cid)->money + _price[PR_STATION_VALUE] * 200;
02910
02911
02912
02913 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02914 const TownActions cur = (TownActions)(1 << i);
02915
02916
02917 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM)) continue;
02918
02919
02920 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights) continue;
02921
02922
02923 if (cur == TACT_FUND_BUILDINGS && !_settings_game.economy.fund_buildings) continue;
02924
02925
02926 if (cur == TACT_ROAD_REBUILD && !_settings_game.economy.fund_roads) continue;
02927
02928
02929 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid)) continue;
02930
02931 if (avail >= _town_action_costs[i] * _price[PR_TOWN_ACTION] >> 8) {
02932 buttons |= cur;
02933 num++;
02934 }
02935 }
02936 }
02937
02938 if (nump != NULL) *nump = num;
02939 return buttons;
02940 }
02941
02953 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02954 {
02955 Town *t = Town::GetIfValid(p1);
02956 if (t == NULL || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02957
02958 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02959
02960 CommandCost cost(EXPENSES_OTHER, _price[PR_TOWN_ACTION] * _town_action_costs[p2] >> 8);
02961
02962 CommandCost ret = _town_action_proc[p2](t, flags);
02963 if (ret.Failed()) return ret;
02964
02965 if (flags & DC_EXEC) {
02966 SetWindowDirty(WC_TOWN_AUTHORITY, p1);
02967 }
02968
02969 return cost;
02970 }
02971
02972 static void UpdateTownRating(Town *t)
02973 {
02974
02975 const Company *c;
02976 FOR_ALL_COMPANIES(c) {
02977 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02978 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02979 }
02980 }
02981
02982 const Station *st;
02983 FOR_ALL_STATIONS(st) {
02984 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
02985 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02986 if (Company::IsValidID(st->owner)) {
02987 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02988 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02989 }
02990 } else {
02991 if (Company::IsValidID(st->owner)) {
02992 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02993 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02994 }
02995 }
02996 }
02997 }
02998
02999
03000 for (uint i = 0; i < MAX_COMPANIES; i++) {
03001 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
03002 }
03003
03004 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03005 }
03006
03007 static void UpdateTownGrowRate(Town *t)
03008 {
03009 ClrBit(t->flags, TOWN_IS_FUNDED);
03010 SetWindowDirty(WC_TOWN_VIEW, t->index);
03011
03012 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
03013
03014 if (t->fund_buildings_months == 0) {
03015
03016 for (int i = TE_BEGIN; i < TE_END; i++) {
03017 switch (t->goal[i]) {
03018 case TOWN_GROWTH_WINTER:
03019 if (TileHeight(t->xy) >= GetSnowLine() && t->received[i].old_act == 0 && t->cache.population > 90) return;
03020 break;
03021 case TOWN_GROWTH_DESERT:
03022 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && t->received[i].old_act == 0 && t->cache.population > 60) return;
03023 break;
03024 default:
03025 if (t->goal[i] > t->received[i].old_act) return;
03026 break;
03027 }
03028 }
03029 }
03030
03031 if ((t->growth_rate & TOWN_GROW_RATE_CUSTOM) != 0) {
03032 SetBit(t->flags, TOWN_IS_FUNDED);
03033 SetWindowDirty(WC_TOWN_VIEW, t->index);
03034 return;
03035 }
03036
03041 static const uint16 _grow_count_values[2][6] = {
03042 { 120, 120, 120, 100, 80, 60 },
03043 { 320, 420, 300, 220, 160, 100 }
03044 };
03045
03046 int n = 0;
03047
03048 const Station *st;
03049 FOR_ALL_STATIONS(st) {
03050 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
03051 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
03052 n++;
03053 }
03054 }
03055 }
03056
03057 uint16 m;
03058
03059 if (t->fund_buildings_months != 0) {
03060 m = _grow_count_values[0][min(n, 5)];
03061 } else {
03062 m = _grow_count_values[1][min(n, 5)];
03063 if (n == 0 && !Chance16(1, 12)) return;
03064 }
03065
03066
03067
03068 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
03069
03070 m >>= growth_multiplier;
03071 if (t->larger_town) m /= 2;
03072
03073 t->growth_rate = m / (t->cache.num_houses / 50 + 1);
03074 if (m <= t->grow_counter) {
03075 t->grow_counter = m;
03076 }
03077
03078 SetBit(t->flags, TOWN_IS_FUNDED);
03079 SetWindowDirty(WC_TOWN_VIEW, t->index);
03080 }
03081
03082 static void UpdateTownAmounts(Town *t)
03083 {
03084 for (CargoID i = 0; i < NUM_CARGO; i++) t->supplied[i].NewMonth();
03085 for (int i = TE_BEGIN; i < TE_END; i++) t->received[i].NewMonth();
03086 if (t->fund_buildings_months != 0) t->fund_buildings_months--;
03087
03088 SetWindowDirty(WC_TOWN_VIEW, t->index);
03089 }
03090
03091 static void UpdateTownUnwanted(Town *t)
03092 {
03093 const Company *c;
03094
03095 FOR_ALL_COMPANIES(c) {
03096 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
03097 }
03098 }
03099
03106 CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
03107 {
03108 if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
03109
03110 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
03111 if (t == NULL) return CommandCost();
03112
03113 if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
03114
03115 SetDParam(0, t->index);
03116 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03117 }
03118
03127 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
03128 {
03129 Town *t;
03130 uint best = threshold;
03131 Town *best_town = NULL;
03132
03133 FOR_ALL_TOWNS(t) {
03134 uint dist = DistanceManhattan(tile, t->xy);
03135 if (dist < best) {
03136 best = dist;
03137 best_town = t;
03138 }
03139 }
03140
03141 return best_town;
03142 }
03143
03152 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
03153 {
03154 switch (GetTileType(tile)) {
03155 case MP_ROAD:
03156 if (IsRoadDepot(tile)) return CalcClosestTownFromTile(tile, threshold);
03157
03158 if (!HasTownOwnedRoad(tile)) {
03159 TownID tid = GetTownIndex(tile);
03160
03161 if (tid == (TownID)INVALID_TOWN) {
03162
03163 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
03164 assert(Town::GetNumItems() == 0);
03165 return NULL;
03166 }
03167
03168 assert(Town::IsValidID(tid));
03169 Town *town = Town::Get(tid);
03170
03171 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
03172
03173 return town;
03174 }
03175
03176
03177 case MP_HOUSE:
03178 return Town::GetByTile(tile);
03179
03180 default:
03181 return CalcClosestTownFromTile(tile, threshold);
03182 }
03183 }
03184
03185 static bool _town_rating_test = false;
03186 static SmallMap<const Town *, int, 4> _town_test_ratings;
03187
03193 void SetTownRatingTestMode(bool mode)
03194 {
03195 static int ref_count = 0;
03196 if (mode) {
03197 if (ref_count == 0) {
03198 _town_test_ratings.Clear();
03199 }
03200 ref_count++;
03201 } else {
03202 assert(ref_count > 0);
03203 ref_count--;
03204 }
03205 _town_rating_test = !(ref_count == 0);
03206 }
03207
03213 static int GetRating(const Town *t)
03214 {
03215 if (_town_rating_test) {
03216 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
03217 if (it != _town_test_ratings.End()) {
03218 return it->second;
03219 }
03220 }
03221 return t->ratings[_current_company];
03222 }
03223
03231 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
03232 {
03233
03234 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
03235 !Company::IsValidID(_current_company) ||
03236 (_cheats.magic_bulldozer.value && add < 0)) {
03237 return;
03238 }
03239
03240 int rating = GetRating(t);
03241 if (add < 0) {
03242 if (rating > max) {
03243 rating += add;
03244 if (rating < max) rating = max;
03245 }
03246 } else {
03247 if (rating < max) {
03248 rating += add;
03249 if (rating > max) rating = max;
03250 }
03251 }
03252 if (_town_rating_test) {
03253 _town_test_ratings[t] = rating;
03254 } else {
03255 SetBit(t->have_ratings, _current_company);
03256 t->ratings[_current_company] = rating;
03257 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03258 }
03259 }
03260
03268 CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
03269 {
03270
03271 if (t == NULL || !Company::IsValidID(_current_company) ||
03272 _cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
03273 return CommandCost();
03274 }
03275
03276
03277 static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
03278
03279 { RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE},
03280 { RATING_ROAD_NEEDED_NEUTRAL, RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL},
03281 { RATING_ROAD_NEEDED_HOSTILE, RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE},
03282 };
03283
03284
03285
03286
03287
03288 int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][type];
03289
03290 if (GetRating(t) < needed) {
03291 SetDParam(0, t->index);
03292 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03293 }
03294
03295 return CommandCost();
03296 }
03297
03298 void TownsMonthlyLoop()
03299 {
03300 Town *t;
03301
03302 FOR_ALL_TOWNS(t) {
03303 if (t->road_build_months != 0) t->road_build_months--;
03304
03305 if (t->exclusive_counter != 0) {
03306 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
03307 }
03308
03309 UpdateTownAmounts(t);
03310 UpdateTownRating(t);
03311 UpdateTownGrowRate(t);
03312 UpdateTownUnwanted(t);
03313 UpdateTownCargoes(t);
03314 }
03315
03316 UpdateTownCargoBitmap();
03317 }
03318
03319 void TownsYearlyLoop()
03320 {
03321
03322 for (TileIndex t = 0; t < MapSize(); t++) {
03323 if (!IsTileType(t, MP_HOUSE)) continue;
03324 IncrementHouseAge(t);
03325 }
03326 }
03327
03328 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
03329 {
03330 if (AutoslopeEnabled()) {
03331 HouseID house = GetHouseType(tile);
03332 GetHouseNorthPart(house);
03333 const HouseSpec *hs = HouseSpec::Get(house);
03334
03335
03336 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
03337 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
03338 bool allow_terraform = true;
03339
03340
03341 house = GetHouseType(tile);
03342 hs = HouseSpec::Get(house);
03343 if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
03344
03345 uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
03346 if (res != CALLBACK_FAILED && ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_AUTOSLOPE, res)) allow_terraform = false;
03347 }
03348
03349 if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
03350 }
03351 }
03352
03353 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
03354 }
03355
03357 extern const TileTypeProcs _tile_type_town_procs = {
03358 DrawTile_Town,
03359 GetSlopePixelZ_Town,
03360 ClearTile_Town,
03361 AddAcceptedCargo_Town,
03362 GetTileDesc_Town,
03363 GetTileTrackStatus_Town,
03364 NULL,
03365 AnimateTile_Town,
03366 TileLoop_Town,
03367 ChangeTileOwner_Town,
03368 AddProducedCargo_Town,
03369 NULL,
03370 GetFoundation_Town,
03371 TerraformTile_Town,
03372 };
03373
03374
03375 HouseSpec _house_specs[HOUSE_MAX];
03376
03377 void ResetHouses()
03378 {
03379 memset(&_house_specs, 0, sizeof(_house_specs));
03380 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
03381
03382
03383 _house_mngr.ResetOverride();
03384 }