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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 (GetTownRoadBits(tile) == ROAD_NONE) {
00852
00853
00854
00855 if (DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_Y : ROAD_X), 0, DC_AUTO, CMD_BUILD_ROAD).Failed() &&
00856 DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR).Failed()) {
00857 return false;
00858 }
00859 }
00860
00861 Slope cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile) : GetTileSlope(tile);
00862 bool ret = !IsNeighborRoadTile(tile, dir, t->layout == TL_ORIGINAL ? 1 : 2);
00863 if (cur_slope == SLOPE_FLAT) return ret;
00864
00865
00866
00867 Slope desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00868 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00869 if (Chance16(1, 8)) {
00870 CommandCost res = CMD_ERROR;
00871 if (!_generating_world && Chance16(1, 10)) {
00872
00873 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00874 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00875 }
00876 if (res.Failed() && Chance16(1, 3)) {
00877
00878 return ret;
00879 }
00880 }
00881 return false;
00882 }
00883 return ret;
00884 }
00885
00886 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00887 {
00888 assert(tile < MapSize());
00889
00890 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00891 if (r.Failed() || r.GetCost() >= (_price[PR_TERRAFORM] + 2) * 8) return false;
00892 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00893 return true;
00894 }
00895
00896 static void LevelTownLand(TileIndex tile)
00897 {
00898 assert(tile < MapSize());
00899
00900
00901 if (IsTileType(tile, MP_HOUSE)) return;
00902 Slope tileh = GetTileSlope(tile);
00903 if (tileh == SLOPE_FLAT) return;
00904
00905
00906 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00907 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00908 }
00909 }
00910
00920 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00921 {
00922
00923 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00924 RoadBits rcmd = ROAD_NONE;
00925
00926 switch (t->layout) {
00927 default: NOT_REACHED();
00928
00929 case TL_2X2_GRID:
00930 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00931 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00932 break;
00933
00934 case TL_3X3_GRID:
00935 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00936 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00937 break;
00938 }
00939
00940
00941 if (rcmd != ROAD_ALL) return rcmd;
00942
00943 RoadBits rb_template;
00944
00945 switch (GetTileSlope(tile)) {
00946 default: rb_template = ROAD_ALL; break;
00947 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00948 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00949 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00950 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00951 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00952 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00953 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00954 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00955 case SLOPE_STEEP_W:
00956 case SLOPE_STEEP_S:
00957 case SLOPE_STEEP_E:
00958 case SLOPE_STEEP_N:
00959 rb_template = ROAD_NONE;
00960 break;
00961 }
00962
00963
00964 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00965
00966 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00967 }
00968
00979 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00980 {
00981
00982 if (DistanceFromEdge(tile) == 0) return false;
00983
00984 uint counter = 0;
00985
00986
00987 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00988
00989
00990
00991 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
00992 case MP_HOUSE:
00993 case MP_VOID:
00994 counter++;
00995 break;
00996
00997 default:
00998 break;
00999 }
01000
01001
01002 if (counter >= 3) {
01003 if (BuildTownHouse(t, tile)) {
01004 _grow_town_result = GROWTH_SUCCEED;
01005 return true;
01006 }
01007 return false;
01008 }
01009 }
01010 return false;
01011 }
01012
01021 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
01022 {
01023 if (DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD).Succeeded()) {
01024 _grow_town_result = GROWTH_SUCCEED;
01025 return true;
01026 }
01027 return false;
01028 }
01029
01040 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
01041 {
01042 assert(bridge_dir < DIAGDIR_END);
01043
01044 const Slope slope = GetTileSlope(tile);
01045
01046
01047
01048
01049 if (slope != SLOPE_FLAT && slope & InclinedSlope(bridge_dir)) return false;
01050
01051
01052 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
01053
01054
01055 uint8 bridge_length = 0;
01056 TileIndex bridge_tile = tile;
01057
01058 const int delta = TileOffsByDiagDir(bridge_dir);
01059
01060 if (slope == SLOPE_FLAT) {
01061
01062 do {
01063 if (bridge_length++ >= 4) {
01064
01065 return false;
01066 }
01067 bridge_tile += delta;
01068 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile) && !IsSea(bridge_tile));
01069 } else {
01070 do {
01071 if (bridge_length++ >= 11) {
01072
01073 return false;
01074 }
01075 bridge_tile += delta;
01076 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile));
01077 }
01078
01079
01080 if (bridge_length == 1) return false;
01081
01082 for (uint8 times = 0; times <= 22; times++) {
01083 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
01084
01085
01086 if (DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE).Succeeded()) {
01087 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE);
01088 _grow_town_result = GROWTH_SUCCEED;
01089 return true;
01090 }
01091 }
01092
01093 return false;
01094 }
01095
01113 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01114 {
01115 RoadBits rcmd = ROAD_NONE;
01116 TileIndex tile = *tile_ptr;
01117
01118 assert(tile < MapSize());
01119
01120 if (cur_rb == ROAD_NONE) {
01121
01122
01123 _grow_town_result = GROWTH_SEARCH_STOPPED;
01124
01125 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01126 if (!_settings_game.economy.allow_town_level_crossings && IsTileType(tile, MP_RAILWAY)) return;
01127
01128
01129 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01130
01131
01132 switch (t1->layout) {
01133 default: NOT_REACHED();
01134
01135 case TL_3X3_GRID:
01136 case TL_2X2_GRID:
01137 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01138 if (rcmd == ROAD_NONE) return;
01139 break;
01140
01141 case TL_BETTER_ROADS:
01142 case TL_ORIGINAL:
01143 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01144
01145 DiagDirection source_dir = ReverseDiagDir(target_dir);
01146
01147 if (Chance16(1, 4)) {
01148
01149 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01150 }
01151
01152 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01153
01154
01155 if (target_dir != ReverseDiagDir(source_dir)) return;
01156
01157
01158 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01159 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01160 return;
01161 }
01162
01163
01164
01165 }
01166
01167 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01168 break;
01169 }
01170
01171 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01172
01173
01174
01175 _grow_town_result = GROWTH_SEARCH_STOPPED;
01176
01177 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01178
01179 switch (t1->layout) {
01180 default: NOT_REACHED();
01181
01182 case TL_3X3_GRID:
01183 case TL_2X2_GRID:
01184 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01185 break;
01186
01187 case TL_BETTER_ROADS:
01188 case TL_ORIGINAL:
01189 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01190 break;
01191 }
01192 } else {
01193 bool allow_house = true;
01194
01195
01196
01197 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01198 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD && (target_dir != DIAGDIR_END || Chance16(1, 2))) {
01199 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01200 }
01201 return;
01202 }
01203
01204
01205
01206 target_dir = RandomDiagDir();
01207 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01208
01209
01210 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01211
01212
01213 if (HasTileWaterGround(house_tile)) return;
01214
01215 if (!IsValidTile(house_tile)) return;
01216
01217 if (_settings_game.economy.allow_town_roads || _generating_world) {
01218 switch (t1->layout) {
01219 default: NOT_REACHED();
01220
01221 case TL_3X3_GRID:
01222 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01223
01224
01225 case TL_2X2_GRID:
01226 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01227 allow_house = (rcmd == ROAD_NONE);
01228 break;
01229
01230 case TL_BETTER_ROADS:
01231 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01232
01233
01234 case TL_ORIGINAL:
01235
01236
01237 rcmd = DiagDirToRoadBits(target_dir);
01238 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01239 break;
01240 }
01241 }
01242
01243 if (allow_house) {
01244
01245 if (!IsTileType(house_tile, MP_HOUSE)) {
01246
01247 if (Chance16(1, 6)) LevelTownLand(house_tile);
01248
01249
01250
01251 if (BuildTownHouse(t1, house_tile)) {
01252 _grow_town_result = GROWTH_SUCCEED;
01253 }
01254 }
01255 return;
01256 }
01257
01258 _grow_town_result = GROWTH_SEARCH_STOPPED;
01259 }
01260
01261
01262 if (HasTileWaterGround(tile)) return;
01263
01264
01265 rcmd = CleanUpRoadBits(tile, rcmd);
01266 if (rcmd == ROAD_NONE) return;
01267
01268
01269
01270
01271 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01272
01273 GrowTownWithRoad(t1, tile, rcmd);
01274 }
01275
01282 static int GrowTownAtRoad(Town *t, TileIndex tile)
01283 {
01284
01285
01286
01287 DiagDirection target_dir = DIAGDIR_END;
01288
01289 assert(tile < MapSize());
01290
01291
01292
01293
01294 switch (t->layout) {
01295 case TL_BETTER_ROADS:
01296 _grow_town_result = 10 + t->cache.num_houses * 2 / 9;
01297 break;
01298
01299 case TL_3X3_GRID:
01300 case TL_2X2_GRID:
01301 _grow_town_result = 10 + t->cache.num_houses * 1 / 9;
01302 break;
01303
01304 default:
01305 _grow_town_result = 10 + t->cache.num_houses * 4 / 9;
01306 break;
01307 }
01308
01309 do {
01310 RoadBits cur_rb = GetTownRoadBits(tile);
01311
01312
01313 GrowTownInTile(&tile, cur_rb, target_dir, t);
01314
01315
01316
01317 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01318 if (cur_rb == ROAD_NONE) {
01319 return _grow_town_result;
01320 }
01321
01322 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01323
01324 target_dir = ReverseDiagDir(GetTunnelBridgeDirection(tile));
01325 } else {
01326
01327
01328 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01329 }
01330 tile = TileAddByDiagDir(tile, target_dir);
01331
01332 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01333
01334 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && Town::GetByTile(tile) != t) {
01335 _grow_town_result = GROWTH_SUCCEED;
01336 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01337
01338
01339 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01340 SetTownIndex(tile, t->index);
01341 }
01342 }
01343
01344
01345 } while (--_grow_town_result >= 0);
01346
01347 return (_grow_town_result == -2);
01348 }
01349
01357 static RoadBits GenRandomRoadBits()
01358 {
01359 uint32 r = Random();
01360 uint a = GB(r, 0, 2);
01361 uint b = GB(r, 8, 2);
01362 if (a == b) b ^= 2;
01363 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01364 }
01365
01371 static bool GrowTown(Town *t)
01372 {
01373 static const TileIndexDiffC _town_coord_mod[] = {
01374 {-1, 0},
01375 { 1, 1},
01376 { 1, -1},
01377 {-1, -1},
01378 {-1, 0},
01379 { 0, 2},
01380 { 2, 0},
01381 { 0, -2},
01382 {-1, -1},
01383 {-2, 2},
01384 { 2, 2},
01385 { 2, -2},
01386 { 0, 0}
01387 };
01388
01389
01390 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01391
01392 TileIndex tile = t->xy;
01393
01394
01395 const TileIndexDiffC *ptr;
01396 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01397 if (GetTownRoadBits(tile) != ROAD_NONE) {
01398 int r = GrowTownAtRoad(t, tile);
01399 cur_company.Restore();
01400 return r != 0;
01401 }
01402 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01403 }
01404
01405
01406
01407 if (_settings_game.economy.allow_town_roads || _generating_world) {
01408 tile = t->xy;
01409 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01410
01411 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile) == SLOPE_FLAT) {
01412 if (DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded()) {
01413 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01414 cur_company.Restore();
01415 return true;
01416 }
01417 }
01418 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01419 }
01420 }
01421
01422 cur_company.Restore();
01423 return false;
01424 }
01425
01426 void UpdateTownRadius(Town *t)
01427 {
01428 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01429 { 4, 0, 0, 0, 0},
01430 { 16, 0, 0, 0, 0},
01431 { 25, 0, 0, 0, 0},
01432 { 36, 0, 0, 0, 0},
01433 { 49, 0, 4, 0, 0},
01434 { 64, 0, 4, 0, 0},
01435 { 64, 0, 9, 0, 1},
01436 { 64, 0, 9, 0, 4},
01437 { 64, 0, 16, 0, 4},
01438 { 81, 0, 16, 0, 4},
01439 { 81, 0, 16, 0, 4},
01440 { 81, 0, 25, 0, 9},
01441 { 81, 36, 25, 0, 9},
01442 { 81, 36, 25, 16, 9},
01443 { 81, 49, 0, 25, 9},
01444 { 81, 64, 0, 25, 9},
01445 { 81, 64, 0, 36, 9},
01446 { 81, 64, 0, 36, 16},
01447 {100, 81, 0, 49, 16},
01448 {100, 81, 0, 49, 25},
01449 {121, 81, 0, 49, 25},
01450 {121, 81, 0, 49, 25},
01451 {121, 81, 0, 49, 36},
01452 };
01453
01454 if (t->cache.num_houses < 92) {
01455 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));
01456 } else {
01457 int mass = t->cache.num_houses / 8;
01458
01459
01460
01461 t->cache.squared_town_zone_radius[0] = mass * 15 - 40;
01462 t->cache.squared_town_zone_radius[1] = mass * 9 - 15;
01463 t->cache.squared_town_zone_radius[2] = 0;
01464 t->cache.squared_town_zone_radius[3] = mass * 5 - 5;
01465 t->cache.squared_town_zone_radius[4] = mass * 3 + 5;
01466 }
01467 }
01468
01469 void UpdateTownMaxPass(Town *t)
01470 {
01471 t->supplied[CT_PASSENGERS].old_max = t->cache.population >> 3;
01472 t->supplied[CT_MAIL].old_max = t->cache.population >> 4;
01473 }
01474
01486 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
01487 {
01488 t->xy = tile;
01489 t->cache.num_houses = 0;
01490 t->time_until_rebuild = 10;
01491 UpdateTownRadius(t);
01492 t->flags = 0;
01493 t->cache.population = 0;
01494 t->grow_counter = 0;
01495 t->growth_rate = 250;
01496
01497
01498 switch (_settings_game.game_creation.landscape) {
01499 case LT_ARCTIC:
01500 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
01501 break;
01502
01503 case LT_TROPIC:
01504 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
01505 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
01506 break;
01507 }
01508
01509 t->fund_buildings_months = 0;
01510
01511 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01512
01513 t->have_ratings = 0;
01514 t->exclusivity = INVALID_COMPANY;
01515 t->exclusive_counter = 0;
01516 t->statues = 0;
01517
01518 extern int _nb_orig_names;
01519 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01520
01521 t->townnamegrfid = 0;
01522 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01523 } else {
01524
01525 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01526 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01527 }
01528 t->townnameparts = townnameparts;
01529
01530 t->UpdateVirtCoord();
01531 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01532
01533 t->InitializeLayout(layout);
01534
01535 t->larger_town = city;
01536
01537 int x = (int)size * 16 + 3;
01538 if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
01539
01540 if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;
01541
01542 t->cache.num_houses += x;
01543 UpdateTownRadius(t);
01544
01545 int i = x * 4;
01546 do {
01547 GrowTown(t);
01548 } while (--i);
01549
01550 t->cache.num_houses -= x;
01551 UpdateTownRadius(t);
01552 UpdateTownMaxPass(t);
01553 UpdateAirportsNoise();
01554 }
01555
01561 static CommandCost TownCanBePlacedHere(TileIndex tile)
01562 {
01563
01564 if (DistanceFromEdge(tile) < 12) {
01565 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB);
01566 }
01567
01568
01569 if (IsCloseToTown(tile, 20)) {
01570 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN);
01571 }
01572
01573
01574 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile) != SLOPE_FLAT) {
01575 return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
01576 }
01577
01578 return CommandCost(EXPENSES_OTHER);
01579 }
01580
01586 static bool IsUniqueTownName(const char *name)
01587 {
01588 const Town *t;
01589
01590 FOR_ALL_TOWNS(t) {
01591 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
01592 }
01593
01594 return true;
01595 }
01596
01609 CommandCost CmdFoundTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01610 {
01611 TownSize size = Extract<TownSize, 0, 2>(p1);
01612 bool city = HasBit(p1, 2);
01613 TownLayout layout = Extract<TownLayout, 3, 3>(p1);
01614 TownNameParams par(_settings_game.game_creation.town_name);
01615 bool random = HasBit(p1, 6);
01616 uint32 townnameparts = p2;
01617
01618 if (size >= TSZ_END) return CMD_ERROR;
01619 if (layout >= NUM_TLS) return CMD_ERROR;
01620
01621
01622 if (_game_mode != GM_EDITOR) {
01623 if (_settings_game.economy.found_town == TF_FORBIDDEN) return CMD_ERROR;
01624 if (size == TSZ_LARGE) return CMD_ERROR;
01625 if (random) return CMD_ERROR;
01626 if (_settings_game.economy.found_town != TF_CUSTOM_LAYOUT && layout != _settings_game.economy.town_layout) {
01627 return CMD_ERROR;
01628 }
01629 }
01630
01631 if (StrEmpty(text)) {
01632
01633 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01634 } else {
01635
01636 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
01637 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01638 }
01639
01640
01641 if (!Town::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_TOWNS);
01642
01643 if (!random) {
01644 CommandCost ret = TownCanBePlacedHere(tile);
01645 if (ret.Failed()) return ret;
01646 }
01647
01648 static const byte price_mult[][TSZ_RANDOM + 1] = {{ 15, 25, 40, 25 }, { 20, 35, 55, 35 }};
01649
01650 assert_compile(lengthof(price_mult[0]) == 4);
01651
01652 CommandCost cost(EXPENSES_OTHER, _price[PR_BUILD_TOWN]);
01653 byte mult = price_mult[city][size];
01654
01655 cost.MultiplyCost(mult);
01656
01657
01658 if (flags & DC_EXEC) {
01659 if (cost.GetCost() > GetAvailableMoneyForCommand()) {
01660 _additional_cash_required = cost.GetCost();
01661 return CommandCost(EXPENSES_OTHER);
01662 }
01663
01664 _generating_world = true;
01665 UpdateNearestTownForRoadTiles(true);
01666 Town *t;
01667 if (random) {
01668 t = CreateRandomTown(20, townnameparts, size, city, layout);
01669 if (t == NULL) {
01670 cost = CommandCost(STR_ERROR_NO_SPACE_FOR_TOWN);
01671 } else {
01672 _new_town_id = t->index;
01673 }
01674 } else {
01675 t = new Town(tile);
01676 DoCreateTown(t, tile, townnameparts, size, city, layout, true);
01677 }
01678 UpdateNearestTownForRoadTiles(false);
01679 _generating_world = false;
01680
01681 if (t != NULL && !StrEmpty(text)) {
01682 t->name = strdup(text);
01683 t->UpdateVirtCoord();
01684 }
01685
01686 if (_game_mode != GM_EDITOR) {
01687
01688 assert(!random);
01689 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
01690 SetDParam(0, _current_company);
01691 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
01692
01693 char *cn = strdup(company_name);
01694 SetDParamStr(0, cn);
01695 SetDParam(1, t->index);
01696
01697 AddTileNewsItem(STR_NEWS_NEW_TOWN, NT_INDUSTRY_OPEN, tile, cn);
01698 AI::BroadcastNewEvent(new ScriptEventTownFounded(t->index));
01699 Game::NewEvent(new ScriptEventTownFounded(t->index));
01700 }
01701 }
01702 return cost;
01703 }
01704
01714 static TileIndex AlignTileToGrid(TileIndex tile, TownLayout layout)
01715 {
01716 switch (layout) {
01717 case TL_2X2_GRID: return TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01718 case TL_3X3_GRID: return TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01719 default: return tile;
01720 }
01721 }
01722
01732 static bool IsTileAlignedToGrid(TileIndex tile, TownLayout layout)
01733 {
01734 switch (layout) {
01735 case TL_2X2_GRID: return TileX(tile) % 3 == 0 && TileY(tile) % 3 == 0;
01736 case TL_3X3_GRID: return TileX(tile) % 4 == 0 && TileY(tile) % 4 == 0;
01737 default: return true;
01738 }
01739 }
01740
01744 struct SpotData {
01745 TileIndex tile;
01746 uint max_dist;
01747 TownLayout layout;
01748 };
01749
01766 static bool FindFurthestFromWater(TileIndex tile, void *user_data)
01767 {
01768 SpotData *sp = (SpotData*)user_data;
01769 uint dist = GetClosestWaterDistance(tile, true);
01770
01771 if (IsTileType(tile, MP_CLEAR) &&
01772 GetTileSlope(tile) == SLOPE_FLAT &&
01773 IsTileAlignedToGrid(tile, sp->layout) &&
01774 dist > sp->max_dist) {
01775 sp->tile = tile;
01776 sp->max_dist = dist;
01777 }
01778
01779 return false;
01780 }
01781
01788 static bool FindNearestEmptyLand(TileIndex tile, void *user_data)
01789 {
01790 return IsTileType(tile, MP_CLEAR);
01791 }
01792
01805 static TileIndex FindNearestGoodCoastalTownSpot(TileIndex tile, TownLayout layout)
01806 {
01807 SpotData sp = { INVALID_TILE, 0, layout };
01808
01809 TileIndex coast = tile;
01810 if (CircularTileSearch(&coast, 40, FindNearestEmptyLand, NULL)) {
01811 CircularTileSearch(&coast, 10, FindFurthestFromWater, &sp);
01812 return sp.tile;
01813 }
01814
01815
01816 return INVALID_TILE;
01817 }
01818
01819 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01820 {
01821 assert(_game_mode == GM_EDITOR || _generating_world);
01822
01823 if (!Town::CanAllocateItem()) return NULL;
01824
01825 do {
01826
01827 TileIndex tile = AlignTileToGrid(RandomTile(), layout);
01828
01829
01830
01831 if (IsTileType(tile, MP_WATER)) {
01832 tile = FindNearestGoodCoastalTownSpot(tile, layout);
01833 if (tile == INVALID_TILE) continue;
01834 }
01835
01836
01837 if (TownCanBePlacedHere(tile).Failed()) continue;
01838
01839
01840 Town *t = new Town(tile);
01841
01842 DoCreateTown(t, tile, townnameparts, size, city, layout, false);
01843
01844
01845
01846 if (t->cache.population > 0) return t;
01847 CommandCost rc = DoCommand(t->xy, t->index, 0, DC_EXEC, CMD_DELETE_TOWN);
01848 assert(rc.Succeeded());
01849
01850
01851
01852
01853
01854 assert(Town::CanAllocateItem());
01855 } while (--attempts != 0);
01856
01857 return NULL;
01858 }
01859
01860 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01861
01869 bool GenerateTowns(TownLayout layout)
01870 {
01871 uint current_number = 0;
01872 uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_towns : 0;
01873 uint total = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01874 uint32 townnameparts;
01875
01876 SetGeneratingWorldProgress(GWP_TOWN, total);
01877
01878
01879
01880
01881 do {
01882 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01883 IncreaseGeneratingWorldProgress(GWP_TOWN);
01884
01885 if (!GenerateTownName(&townnameparts)) continue;
01886
01887 if (CreateRandomTown(20, townnameparts, TSZ_RANDOM, city, layout) != NULL) current_number++;
01888 } while (--total);
01889
01890 if (current_number != 0) return true;
01891
01892
01893
01894 if (GenerateTownName(&townnameparts) &&
01895 CreateRandomTown(10000, townnameparts, TSZ_RANDOM, _settings_game.economy.larger_towns != 0, layout) != NULL) {
01896 return true;
01897 }
01898
01899
01900 if (Town::GetNumItems() == 0 && _game_mode != GM_EDITOR) {
01901 ShowErrorMessage(STR_ERROR_COULD_NOT_CREATE_TOWN, INVALID_STRING_ID, WL_CRITICAL);
01902 }
01903
01904 return false;
01905 }
01906
01907
01914 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01915 {
01916 uint dist = DistanceSquare(tile, t->xy);
01917
01918 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01919
01920 HouseZonesBits smallest = HZB_TOWN_EDGE;
01921 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01922 if (dist < t->cache.squared_town_zone_radius[i]) smallest = i;
01923 }
01924
01925 return smallest;
01926 }
01927
01938 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01939 {
01940 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01941
01942 assert(cc.Succeeded());
01943
01944 IncreaseBuildingCount(t, type);
01945 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01946 if (HouseSpec::Get(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01947
01948 MarkTileDirtyByTile(tile);
01949 }
01950
01951
01962 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01963 {
01964 BuildingFlags size = HouseSpec::Get(type)->building_flags;
01965
01966 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01967 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01968 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01969 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01970 }
01971
01972
01981 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01982 {
01983
01984 Slope slope = GetTileSlope(tile);
01985 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01986
01987
01988 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01989
01990
01991 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01992
01993
01994 return DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded();
01995 }
01996
01997
02007 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, int z, bool noslope)
02008 {
02009 if (!CanBuildHouseHere(tile, town, noslope)) return false;
02010
02011
02012 if (GetTileMaxZ(tile) != z) return false;
02013
02014 return true;
02015 }
02016
02017
02027 static bool CheckFree2x2Area(TileIndex tile, TownID town, int z, bool noslope)
02028 {
02029
02030 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02031
02032 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
02033 tile += TileOffsByDiagDir(d);
02034 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02035 }
02036
02037 return true;
02038 }
02039
02040
02048 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
02049 {
02050
02051 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02052
02053 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02054
02055 switch (t->layout) {
02056 case TL_2X2_GRID:
02057 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
02058 break;
02059
02060 case TL_3X3_GRID:
02061 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
02062 break;
02063
02064 default:
02065 break;
02066 }
02067
02068 return true;
02069 }
02070
02071
02079 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
02080 {
02081
02082 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02083
02084
02085 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02086
02087 switch (t->layout) {
02088 case TL_2X2_GRID:
02089 grid_pos.x %= 3;
02090 grid_pos.y %= 3;
02091 if ((grid_pos.x != 2 && grid_pos.x != -1) ||
02092 (grid_pos.y != 2 && grid_pos.y != -1)) return false;
02093 break;
02094
02095 case TL_3X3_GRID:
02096 if ((grid_pos.x & 3) < 2 || (grid_pos.y & 3) < 2) return false;
02097 break;
02098
02099 default:
02100 break;
02101 }
02102
02103 return true;
02104 }
02105
02106
02116 static bool CheckTownBuild2House(TileIndex *tile, Town *t, int maxz, bool noslope, DiagDirection second)
02117 {
02118
02119
02120 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
02121 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
02122
02123 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
02124 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
02125 *tile = tile2;
02126 return true;
02127 }
02128
02129 return false;
02130 }
02131
02132
02141 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, int maxz, bool noslope)
02142 {
02143 TileIndex tile2 = *tile;
02144
02145 for (DiagDirection d = DIAGDIR_SE;; d++) {
02146 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
02147 *tile = tile2;
02148 return true;
02149 }
02150 if (d == DIAGDIR_END) break;
02151 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
02152 }
02153
02154 return false;
02155 }
02156
02157
02164 static bool BuildTownHouse(Town *t, TileIndex tile)
02165 {
02166
02167 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
02168
02169
02170 if (!CanBuildHouseHere(tile, t->index, false)) return false;
02171
02172 Slope slope = GetTileSlope(tile);
02173 int maxz = GetTileMaxZ(tile);
02174
02175
02176
02177 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
02178
02179
02180 int land = _settings_game.game_creation.landscape;
02181 if (land == LT_ARCTIC && maxz > HighestSnowLine()) land = -1;
02182
02183 uint bitmask = (1 << rad) + (1 << (land + 12));
02184
02185
02186
02187
02188 HouseID houses[HOUSE_MAX];
02189 uint num = 0;
02190 uint probs[HOUSE_MAX];
02191 uint probability_max = 0;
02192
02193
02194 for (uint i = 0; i < HOUSE_MAX; i++) {
02195 const HouseSpec *hs = HouseSpec::Get(i);
02196
02197
02198 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled || hs->grf_prop.override != INVALID_HOUSE_ID) continue;
02199
02200
02201 if (hs->class_id != HOUSE_NO_CLASS) {
02202
02203 if (t->cache.building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
02204 } else {
02205
02206 if (t->cache.building_counts.id_count[i] == UINT16_MAX) continue;
02207 }
02208
02209
02210 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
02211 probability_max += cur_prob;
02212 probs[num] = cur_prob;
02213 houses[num++] = (HouseID)i;
02214 }
02215
02216 TileIndex baseTile = tile;
02217
02218 while (probability_max > 0) {
02219
02220
02221
02222
02223
02224 tile = baseTile;
02225
02226 uint r = RandomRange(probability_max);
02227 uint i;
02228 for (i = 0; i < num; i++) {
02229 if (probs[i] > r) break;
02230 r -= probs[i];
02231 }
02232
02233 HouseID house = houses[i];
02234 probability_max -= probs[i];
02235
02236
02237 num--;
02238 houses[i] = houses[num];
02239 probs[i] = probs[num];
02240
02241 const HouseSpec *hs = HouseSpec::Get(house);
02242
02243 if (_loaded_newgrf_features.has_newhouses && !_generating_world &&
02244 _game_mode != GM_EDITOR && (hs->extra_flags & BUILDING_IS_HISTORICAL) != 0) {
02245 continue;
02246 }
02247
02248 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02249
02250
02251 uint oneof = 0;
02252
02253 if (hs->building_flags & BUILDING_IS_CHURCH) {
02254 SetBit(oneof, TOWN_HAS_CHURCH);
02255 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02256 SetBit(oneof, TOWN_HAS_STADIUM);
02257 }
02258
02259 if (t->flags & oneof) continue;
02260
02261
02262 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02263 if (noslope && slope != SLOPE_FLAT) continue;
02264
02265 if (hs->building_flags & TILE_SIZE_2x2) {
02266 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02267 } else if (hs->building_flags & TILE_SIZE_2x1) {
02268 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02269 } else if (hs->building_flags & TILE_SIZE_1x2) {
02270 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02271 } else {
02272
02273 }
02274
02275 byte random_bits = Random();
02276
02277 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02278 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile, true, random_bits);
02279 if (callback_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_ALLOW_CONSTRUCTION, callback_res)) continue;
02280 }
02281
02282
02283 t->cache.num_houses++;
02284
02285
02286 t->flags |= oneof;
02287
02288 byte construction_counter = 0;
02289 byte construction_stage = 0;
02290
02291 if (_generating_world || _game_mode == GM_EDITOR) {
02292 uint32 r = Random();
02293
02294 construction_stage = TOWN_HOUSE_COMPLETED;
02295 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02296
02297 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02298 ChangePopulation(t, hs->population);
02299 } else {
02300 construction_counter = GB(r, 2, 2);
02301 }
02302 }
02303
02304 MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
02305 UpdateTownRadius(t);
02306 UpdateTownCargoes(t, tile);
02307
02308 return true;
02309 }
02310
02311 return false;
02312 }
02313
02320 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02321 {
02322 assert(IsTileType(tile, MP_HOUSE));
02323 DecreaseBuildingCount(t, house);
02324 DoClearSquare(tile);
02325 DeleteAnimatedTile(tile);
02326
02327 DeleteNewGRFInspectWindow(GSF_HOUSES, tile);
02328 }
02329
02337 TileIndexDiff GetHouseNorthPart(HouseID &house)
02338 {
02339 if (house >= 3) {
02340 if (HouseSpec::Get(house - 1)->building_flags & TILE_SIZE_2x1) {
02341 house--;
02342 return TileDiffXY(-1, 0);
02343 } else if (HouseSpec::Get(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02344 house--;
02345 return TileDiffXY(0, -1);
02346 } else if (HouseSpec::Get(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02347 house -= 2;
02348 return TileDiffXY(-1, 0);
02349 } else if (HouseSpec::Get(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02350 house -= 3;
02351 return TileDiffXY(-1, -1);
02352 }
02353 }
02354 return 0;
02355 }
02356
02357 void ClearTownHouse(Town *t, TileIndex tile)
02358 {
02359 assert(IsTileType(tile, MP_HOUSE));
02360
02361 HouseID house = GetHouseType(tile);
02362
02363
02364 tile += GetHouseNorthPart(house);
02365
02366 const HouseSpec *hs = HouseSpec::Get(house);
02367
02368
02369 if (IsHouseCompleted(tile)) {
02370 ChangePopulation(t, -hs->population);
02371 }
02372
02373 t->cache.num_houses--;
02374
02375
02376 if (hs->building_flags & BUILDING_IS_CHURCH) {
02377 ClrBit(t->flags, TOWN_HAS_CHURCH);
02378 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02379 ClrBit(t->flags, TOWN_HAS_STADIUM);
02380 }
02381
02382
02383 uint eflags = hs->building_flags;
02384 DoClearTownHouseHelper(tile, t, house);
02385 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02386 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02387 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02388
02389 UpdateTownRadius(t);
02390
02391
02392 UpdateTownCargoes(t, tile);
02393 }
02394
02404 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02405 {
02406 Town *t = Town::GetIfValid(p1);
02407 if (t == NULL) return CMD_ERROR;
02408
02409 bool reset = StrEmpty(text);
02410
02411 if (!reset) {
02412 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
02413 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
02414 }
02415
02416 if (flags & DC_EXEC) {
02417 free(t->name);
02418 t->name = reset ? NULL : strdup(text);
02419
02420 t->UpdateVirtCoord();
02421 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02422 UpdateAllStationVirtCoords();
02423 }
02424 return CommandCost();
02425 }
02426
02432 const CargoSpec *FindFirstCargoWithTownEffect(TownEffect effect)
02433 {
02434 const CargoSpec *cs;
02435 FOR_ALL_CARGOSPECS(cs) {
02436 if (cs->town_effect == effect) return cs;
02437 }
02438 return NULL;
02439 }
02440
02441 static void UpdateTownGrowRate(Town *t);
02442
02454 CommandCost CmdTownCargoGoal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02455 {
02456 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02457
02458 TownEffect te = (TownEffect)GB(p1, 16, 8);
02459 if (te < TE_BEGIN || te > TE_END) return CMD_ERROR;
02460
02461 uint16 index = GB(p1, 0, 16);
02462 Town *t = Town::GetIfValid(index);
02463 if (t == NULL) return CMD_ERROR;
02464
02465
02466 const CargoSpec *cargo = FindFirstCargoWithTownEffect(te);
02467 if (cargo == NULL) return CMD_ERROR;
02468
02469 if (flags & DC_EXEC) {
02470 t->goal[te] = p2;
02471 UpdateTownGrowRate(t);
02472 InvalidateWindowData(WC_TOWN_VIEW, index);
02473 }
02474
02475 return CommandCost();
02476 }
02477
02487 CommandCost CmdTownSetText(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02488 {
02489 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02490 Town *t = Town::GetIfValid(p1);
02491 if (t == NULL) return CMD_ERROR;
02492
02493 if (flags & DC_EXEC) {
02494 free(t->text);
02495 t->text = StrEmpty(text) ? NULL : strdup(text);
02496 InvalidateWindowData(WC_TOWN_VIEW, p1);
02497 }
02498
02499 return CommandCost();
02500 }
02501
02511 CommandCost CmdTownGrowthRate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02512 {
02513 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02514 if ((p2 & TOWN_GROW_RATE_CUSTOM) != 0) return CMD_ERROR;
02515 if (GB(p2, 16, 16) != 0) return CMD_ERROR;
02516
02517 Town *t = Town::GetIfValid(p1);
02518 if (t == NULL) return CMD_ERROR;
02519
02520 if (flags & DC_EXEC) {
02521 t->growth_rate = (p2 == 0) ? 0 : p2 | TOWN_GROW_RATE_CUSTOM;
02522 UpdateTownGrowRate(t);
02523 InvalidateWindowData(WC_TOWN_VIEW, p1);
02524 }
02525
02526 return CommandCost();
02527 }
02528
02538 CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02539 {
02540 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) return CMD_ERROR;
02541 Town *t = Town::GetIfValid(p1);
02542 if (t == NULL) return CMD_ERROR;
02543
02544 if (flags & DC_EXEC) {
02545
02546 if (p2 == 0) {
02547 uint amount = RandomRange(ClampToU16(t->cache.num_houses / 10)) + 3;
02548 t->cache.num_houses += amount;
02549 UpdateTownRadius(t);
02550
02551 uint n = amount * 10;
02552 do GrowTown(t); while (--n);
02553
02554 t->cache.num_houses -= amount;
02555 } else {
02556 for (; p2 > 0; p2--) {
02557
02558 for (uint i = 0; i < 25; i++) if (GrowTown(t)) break;
02559 }
02560 }
02561 UpdateTownRadius(t);
02562
02563 UpdateTownMaxPass(t);
02564 }
02565
02566 return CommandCost();
02567 }
02568
02578 CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02579 {
02580 if (_game_mode != GM_EDITOR && !_generating_world) return CMD_ERROR;
02581 Town *t = Town::GetIfValid(p1);
02582 if (t == NULL) return CMD_ERROR;
02583
02584
02585 const Station *st;
02586 FOR_ALL_STATIONS(st) {
02587 if (st->town == t) {
02588
02589 if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
02590
02591 CommandCost ret = DoCommand(st->airport.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02592 if (ret.Failed()) return ret;
02593 }
02594 }
02595
02596
02597 const Depot *d;
02598 FOR_ALL_DEPOTS(d) {
02599 if (d->town == t) return CMD_ERROR;
02600 }
02601
02602
02603 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
02604 bool try_clear = false;
02605 switch (GetTileType(tile)) {
02606 case MP_ROAD:
02607 try_clear = HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index;
02608 break;
02609
02610 case MP_TUNNELBRIDGE:
02611 try_clear = IsTileOwner(tile, OWNER_TOWN) && ClosestTownFromTile(tile, UINT_MAX) == t;
02612 break;
02613
02614 case MP_HOUSE:
02615 try_clear = GetTownIndex(tile) == t->index;
02616 break;
02617
02618 case MP_INDUSTRY:
02619 try_clear = Industry::GetByTile(tile)->town == t;
02620 break;
02621
02622 case MP_OBJECT:
02623 if (Town::GetNumItems() == 1) {
02624
02625 try_clear = true;
02626 } else {
02627 Object *o = Object::GetByTile(tile);
02628 if (o->town == t) {
02629 if (GetObjectType(tile) == OBJECT_STATUE) {
02630
02631 try_clear = true;
02632 } else {
02633
02634 if (flags & DC_EXEC) o->town = NULL;
02635 }
02636 }
02637 }
02638 break;
02639
02640 default:
02641 break;
02642 }
02643 if (try_clear) {
02644 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02645 if (ret.Failed()) return ret;
02646 }
02647 }
02648
02649
02650 if (flags & DC_EXEC) delete t;
02651
02652 return CommandCost();
02653 }
02654
02659 const byte _town_action_costs[TACT_COUNT] = {
02660 2, 4, 9, 35, 48, 53, 117, 175
02661 };
02662
02663 static CommandCost TownActionAdvertiseSmall(Town *t, DoCommandFlag flags)
02664 {
02665 if (flags & DC_EXEC) {
02666 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02667 }
02668 return CommandCost();
02669 }
02670
02671 static CommandCost TownActionAdvertiseMedium(Town *t, DoCommandFlag flags)
02672 {
02673 if (flags & DC_EXEC) {
02674 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02675 }
02676 return CommandCost();
02677 }
02678
02679 static CommandCost TownActionAdvertiseLarge(Town *t, DoCommandFlag flags)
02680 {
02681 if (flags & DC_EXEC) {
02682 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02683 }
02684 return CommandCost();
02685 }
02686
02687 static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlag flags)
02688 {
02689
02690 if (!_settings_game.economy.fund_roads) return CMD_ERROR;
02691
02692 if (flags & DC_EXEC) {
02693 t->road_build_months = 6;
02694
02695 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
02696 SetDParam(0, _current_company);
02697 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02698
02699 char *cn = strdup(company_name);
02700 SetDParam(0, t->index);
02701 SetDParamStr(1, cn);
02702
02703 AddNewsItem(STR_NEWS_ROAD_REBUILDING, NT_GENERAL, NF_NORMAL, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cn);
02704 AI::BroadcastNewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02705 Game::NewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02706 }
02707 return CommandCost();
02708 }
02709
02715 static bool TryClearTile(TileIndex tile)
02716 {
02717 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02718 CommandCost r = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
02719 cur_company.Restore();
02720 return r.Succeeded();
02721 }
02722
02724 struct StatueBuildSearchData {
02725 TileIndex best_position;
02726 int tile_count;
02727
02728 StatueBuildSearchData(TileIndex best_pos, int count) : best_position(best_pos), tile_count(count) { }
02729 };
02730
02737 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02738 {
02739 static const int STATUE_NUMBER_INNER_TILES = 25;
02740
02741 StatueBuildSearchData *statue_data = (StatueBuildSearchData *)user_data;
02742 statue_data->tile_count++;
02743
02744
02745 if (IsSteepSlope(GetTileSlope(tile))) return false;
02746
02747 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02748
02749
02750 if ((IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES)) && TryClearTile(tile)) {
02751 statue_data->best_position = tile;
02752 return true;
02753 }
02754
02755 bool house = IsTileType(tile, MP_HOUSE);
02756
02757
02758 if (statue_data->tile_count <= STATUE_NUMBER_INNER_TILES) {
02759
02760 if (house && statue_data->best_position == INVALID_TILE && TryClearTile(tile)) {
02761 statue_data->best_position = tile;
02762 }
02763
02764
02765 return statue_data->tile_count == STATUE_NUMBER_INNER_TILES && statue_data->best_position != INVALID_TILE;
02766 }
02767
02768
02769 statue_data->best_position = tile;
02770 return house && TryClearTile(tile);
02771 }
02772
02780 static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
02781 {
02782 if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS);
02783
02784 TileIndex tile = t->xy;
02785 StatueBuildSearchData statue_data(INVALID_TILE, 0);
02786 if (!CircularTileSearch(&tile, 9, SearchTileForStatue, &statue_data)) return_cmd_error(STR_ERROR_STATUE_NO_SUITABLE_PLACE);
02787
02788 if (flags & DC_EXEC) {
02789 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02790 DoCommand(statue_data.best_position, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02791 cur_company.Restore();
02792 BuildObject(OBJECT_STATUE, statue_data.best_position, _current_company, t);
02793 SetBit(t->statues, _current_company);
02794 MarkTileDirtyByTile(statue_data.best_position);
02795 }
02796 return CommandCost();
02797 }
02798
02799 static CommandCost TownActionFundBuildings(Town *t, DoCommandFlag flags)
02800 {
02801
02802 if (!_settings_game.economy.fund_buildings) return CMD_ERROR;
02803
02804 if (flags & DC_EXEC) {
02805
02806 t->grow_counter = 1;
02807
02808 SetBit(t->flags, TOWN_IS_FUNDED);
02809
02810 t->fund_buildings_months = 3;
02811
02812 SetWindowDirty(WC_TOWN_VIEW, t->index);
02813 }
02814 return CommandCost();
02815 }
02816
02817 static CommandCost TownActionBuyRights(Town *t, DoCommandFlag flags)
02818 {
02819
02820 if (!_settings_game.economy.exclusive_rights) return CMD_ERROR;
02821
02822 if (flags & DC_EXEC) {
02823 t->exclusive_counter = 12;
02824 t->exclusivity = _current_company;
02825
02826 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02827
02828 SetWindowClassesDirty(WC_STATION_VIEW);
02829
02830
02831 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
02832 cni->FillData(Company::Get(_current_company));
02833 SetDParam(0, STR_NEWS_EXCLUSIVE_RIGHTS_TITLE);
02834 SetDParam(1, STR_NEWS_EXCLUSIVE_RIGHTS_DESCRIPTION);
02835 SetDParam(2, t->index);
02836 SetDParamStr(3, cni->company_name);
02837 AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NT_GENERAL, NF_COMPANY, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cni);
02838 AI::BroadcastNewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02839 Game::NewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02840 }
02841 return CommandCost();
02842 }
02843
02844 static CommandCost TownActionBribe(Town *t, DoCommandFlag flags)
02845 {
02846 if (flags & DC_EXEC) {
02847 if (Chance16(1, 14)) {
02848
02849 t->unwanted[_current_company] = 6;
02850
02851
02852 Station *st;
02853 FOR_ALL_STATIONS(st) {
02854 if (st->town == t && st->owner == _current_company) {
02855 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02856 }
02857 }
02858
02859
02860
02861 if (IsLocalCompany()) ShowErrorMessage(STR_ERROR_BRIBE_FAILED, INVALID_STRING_ID, WL_INFO);
02862
02863
02864
02865
02866
02867 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02868 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02869 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02870 }
02871 } else {
02872 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02873 }
02874 }
02875 return CommandCost();
02876 }
02877
02878 typedef CommandCost TownActionProc(Town *t, DoCommandFlag flags);
02879 static TownActionProc * const _town_action_proc[] = {
02880 TownActionAdvertiseSmall,
02881 TownActionAdvertiseMedium,
02882 TownActionAdvertiseLarge,
02883 TownActionRoadRebuild,
02884 TownActionBuildStatue,
02885 TownActionFundBuildings,
02886 TownActionBuyRights,
02887 TownActionBribe
02888 };
02889
02897 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02898 {
02899 int num = 0;
02900 TownActions buttons = TACT_NONE;
02901
02902
02903 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02904
02905
02906 Money avail = Company::Get(cid)->money + _price[PR_STATION_VALUE] * 200;
02907
02908
02909
02910 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02911 const TownActions cur = (TownActions)(1 << i);
02912
02913
02914 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM)) continue;
02915
02916
02917 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights) continue;
02918
02919
02920 if (cur == TACT_FUND_BUILDINGS && !_settings_game.economy.fund_buildings) continue;
02921
02922
02923 if (cur == TACT_ROAD_REBUILD && !_settings_game.economy.fund_roads) continue;
02924
02925
02926 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid)) continue;
02927
02928 if (avail >= _town_action_costs[i] * _price[PR_TOWN_ACTION] >> 8) {
02929 buttons |= cur;
02930 num++;
02931 }
02932 }
02933 }
02934
02935 if (nump != NULL) *nump = num;
02936 return buttons;
02937 }
02938
02950 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02951 {
02952 Town *t = Town::GetIfValid(p1);
02953 if (t == NULL || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02954
02955 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02956
02957 CommandCost cost(EXPENSES_OTHER, _price[PR_TOWN_ACTION] * _town_action_costs[p2] >> 8);
02958
02959 CommandCost ret = _town_action_proc[p2](t, flags);
02960 if (ret.Failed()) return ret;
02961
02962 if (flags & DC_EXEC) {
02963 SetWindowDirty(WC_TOWN_AUTHORITY, p1);
02964 }
02965
02966 return cost;
02967 }
02968
02969 static void UpdateTownRating(Town *t)
02970 {
02971
02972 const Company *c;
02973 FOR_ALL_COMPANIES(c) {
02974 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02975 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02976 }
02977 }
02978
02979 const Station *st;
02980 FOR_ALL_STATIONS(st) {
02981 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
02982 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02983 if (Company::IsValidID(st->owner)) {
02984 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02985 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02986 }
02987 } else {
02988 if (Company::IsValidID(st->owner)) {
02989 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02990 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02991 }
02992 }
02993 }
02994 }
02995
02996
02997 for (uint i = 0; i < MAX_COMPANIES; i++) {
02998 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02999 }
03000
03001 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03002 }
03003
03004 static void UpdateTownGrowRate(Town *t)
03005 {
03006 ClrBit(t->flags, TOWN_IS_FUNDED);
03007 SetWindowDirty(WC_TOWN_VIEW, t->index);
03008
03009 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
03010
03011 if (t->fund_buildings_months == 0) {
03012
03013 for (int i = TE_BEGIN; i < TE_END; i++) {
03014 switch (t->goal[i]) {
03015 case TOWN_GROWTH_WINTER:
03016 if (TileHeight(t->xy) >= GetSnowLine() && t->received[i].old_act == 0 && t->cache.population > 90) return;
03017 break;
03018 case TOWN_GROWTH_DESERT:
03019 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && t->received[i].old_act == 0 && t->cache.population > 60) return;
03020 break;
03021 default:
03022 if (t->goal[i] > t->received[i].old_act) return;
03023 break;
03024 }
03025 }
03026 }
03027
03028 if ((t->growth_rate & TOWN_GROW_RATE_CUSTOM) != 0) {
03029 SetBit(t->flags, TOWN_IS_FUNDED);
03030 SetWindowDirty(WC_TOWN_VIEW, t->index);
03031 return;
03032 }
03033
03038 static const uint16 _grow_count_values[2][6] = {
03039 { 120, 120, 120, 100, 80, 60 },
03040 { 320, 420, 300, 220, 160, 100 }
03041 };
03042
03043 int n = 0;
03044
03045 const Station *st;
03046 FOR_ALL_STATIONS(st) {
03047 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
03048 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
03049 n++;
03050 }
03051 }
03052 }
03053
03054 uint16 m;
03055
03056 if (t->fund_buildings_months != 0) {
03057 m = _grow_count_values[0][min(n, 5)];
03058 } else {
03059 m = _grow_count_values[1][min(n, 5)];
03060 if (n == 0 && !Chance16(1, 12)) return;
03061 }
03062
03063
03064
03065 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
03066
03067 m >>= growth_multiplier;
03068 if (t->larger_town) m /= 2;
03069
03070 t->growth_rate = m / (t->cache.num_houses / 50 + 1);
03071 if (m <= t->grow_counter) {
03072 t->grow_counter = m;
03073 }
03074
03075 SetBit(t->flags, TOWN_IS_FUNDED);
03076 SetWindowDirty(WC_TOWN_VIEW, t->index);
03077 }
03078
03079 static void UpdateTownAmounts(Town *t)
03080 {
03081 for (CargoID i = 0; i < NUM_CARGO; i++) t->supplied[i].NewMonth();
03082 for (int i = TE_BEGIN; i < TE_END; i++) t->received[i].NewMonth();
03083 if (t->fund_buildings_months != 0) t->fund_buildings_months--;
03084
03085 SetWindowDirty(WC_TOWN_VIEW, t->index);
03086 }
03087
03088 static void UpdateTownUnwanted(Town *t)
03089 {
03090 const Company *c;
03091
03092 FOR_ALL_COMPANIES(c) {
03093 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
03094 }
03095 }
03096
03103 CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
03104 {
03105 if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
03106
03107 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
03108 if (t == NULL) return CommandCost();
03109
03110 if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
03111
03112 SetDParam(0, t->index);
03113 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03114 }
03115
03124 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
03125 {
03126 Town *t;
03127 uint best = threshold;
03128 Town *best_town = NULL;
03129
03130 FOR_ALL_TOWNS(t) {
03131 uint dist = DistanceManhattan(tile, t->xy);
03132 if (dist < best) {
03133 best = dist;
03134 best_town = t;
03135 }
03136 }
03137
03138 return best_town;
03139 }
03140
03149 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
03150 {
03151 switch (GetTileType(tile)) {
03152 case MP_ROAD:
03153 if (IsRoadDepot(tile)) return CalcClosestTownFromTile(tile, threshold);
03154
03155 if (!HasTownOwnedRoad(tile)) {
03156 TownID tid = GetTownIndex(tile);
03157
03158 if (tid == (TownID)INVALID_TOWN) {
03159
03160 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
03161 assert(Town::GetNumItems() == 0);
03162 return NULL;
03163 }
03164
03165 assert(Town::IsValidID(tid));
03166 Town *town = Town::Get(tid);
03167
03168 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
03169
03170 return town;
03171 }
03172
03173
03174 case MP_HOUSE:
03175 return Town::GetByTile(tile);
03176
03177 default:
03178 return CalcClosestTownFromTile(tile, threshold);
03179 }
03180 }
03181
03182 static bool _town_rating_test = false;
03183 static SmallMap<const Town *, int, 4> _town_test_ratings;
03184
03190 void SetTownRatingTestMode(bool mode)
03191 {
03192 static int ref_count = 0;
03193 if (mode) {
03194 if (ref_count == 0) {
03195 _town_test_ratings.Clear();
03196 }
03197 ref_count++;
03198 } else {
03199 assert(ref_count > 0);
03200 ref_count--;
03201 }
03202 _town_rating_test = !(ref_count == 0);
03203 }
03204
03210 static int GetRating(const Town *t)
03211 {
03212 if (_town_rating_test) {
03213 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
03214 if (it != _town_test_ratings.End()) {
03215 return it->second;
03216 }
03217 }
03218 return t->ratings[_current_company];
03219 }
03220
03228 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
03229 {
03230
03231 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
03232 !Company::IsValidID(_current_company) ||
03233 (_cheats.magic_bulldozer.value && add < 0)) {
03234 return;
03235 }
03236
03237 int rating = GetRating(t);
03238 if (add < 0) {
03239 if (rating > max) {
03240 rating += add;
03241 if (rating < max) rating = max;
03242 }
03243 } else {
03244 if (rating < max) {
03245 rating += add;
03246 if (rating > max) rating = max;
03247 }
03248 }
03249 if (_town_rating_test) {
03250 _town_test_ratings[t] = rating;
03251 } else {
03252 SetBit(t->have_ratings, _current_company);
03253 t->ratings[_current_company] = rating;
03254 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03255 }
03256 }
03257
03265 CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
03266 {
03267
03268 if (t == NULL || !Company::IsValidID(_current_company) ||
03269 _cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
03270 return CommandCost();
03271 }
03272
03273
03274 static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
03275
03276 { RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE},
03277 { RATING_ROAD_NEEDED_NEUTRAL, RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL},
03278 { RATING_ROAD_NEEDED_HOSTILE, RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE},
03279 };
03280
03281
03282
03283
03284
03285 int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][type];
03286
03287 if (GetRating(t) < needed) {
03288 SetDParam(0, t->index);
03289 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03290 }
03291
03292 return CommandCost();
03293 }
03294
03295 void TownsMonthlyLoop()
03296 {
03297 Town *t;
03298
03299 FOR_ALL_TOWNS(t) {
03300 if (t->road_build_months != 0) t->road_build_months--;
03301
03302 if (t->exclusive_counter != 0) {
03303 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
03304 }
03305
03306 UpdateTownAmounts(t);
03307 UpdateTownRating(t);
03308 UpdateTownGrowRate(t);
03309 UpdateTownUnwanted(t);
03310 UpdateTownCargoes(t);
03311 }
03312
03313 UpdateTownCargoBitmap();
03314 }
03315
03316 void TownsYearlyLoop()
03317 {
03318
03319 for (TileIndex t = 0; t < MapSize(); t++) {
03320 if (!IsTileType(t, MP_HOUSE)) continue;
03321 IncrementHouseAge(t);
03322 }
03323 }
03324
03325 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
03326 {
03327 if (AutoslopeEnabled()) {
03328 HouseID house = GetHouseType(tile);
03329 GetHouseNorthPart(house);
03330 const HouseSpec *hs = HouseSpec::Get(house);
03331
03332
03333 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
03334 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
03335 bool allow_terraform = true;
03336
03337
03338 house = GetHouseType(tile);
03339 hs = HouseSpec::Get(house);
03340 if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
03341
03342 uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
03343 if (res != CALLBACK_FAILED && ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_AUTOSLOPE, res)) allow_terraform = false;
03344 }
03345
03346 if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
03347 }
03348 }
03349
03350 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
03351 }
03352
03354 extern const TileTypeProcs _tile_type_town_procs = {
03355 DrawTile_Town,
03356 GetSlopePixelZ_Town,
03357 ClearTile_Town,
03358 AddAcceptedCargo_Town,
03359 GetTileDesc_Town,
03360 GetTileTrackStatus_Town,
03361 NULL,
03362 AnimateTile_Town,
03363 TileLoop_Town,
03364 ChangeTileOwner_Town,
03365 AddProducedCargo_Town,
03366 NULL,
03367 GetFoundation_Town,
03368 TerraformTile_Town,
03369 };
03370
03371
03372 HouseSpec _house_specs[HOUSE_MAX];
03373
03374 void ResetHouses()
03375 {
03376 memset(&_house_specs, 0, sizeof(_house_specs));
03377 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
03378
03379
03380 _house_mngr.ResetOverride();
03381 }