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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
00779
00780 Town *t;
00781 FOR_ALL_TOWNS(t) {
00782 if (--t->town_growth_counter == 0) {
00783 TownTickHandler(t);
00784 t->town_growth_counter = TOWN_GROWTH_TICKS;
00785 }
00786 }
00787 }
00788
00797 static RoadBits GetTownRoadBits(TileIndex tile)
00798 {
00799 if (IsRoadDepotTile(tile) || IsStandardRoadStopTile(tile)) return ROAD_NONE;
00800
00801 return GetAnyRoadBits(tile, ROADTYPE_ROAD, true);
00802 }
00803
00814 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00815 {
00816 if (!IsValidTile(tile)) return false;
00817
00818
00819 const TileIndexDiff tid_lt[3] = {
00820 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00821 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00822 TileOffsByDiagDir(ReverseDiagDir(dir)),
00823 };
00824
00825 dist_multi = (dist_multi + 1) * 4;
00826 for (uint pos = 4; pos < dist_multi; pos++) {
00827
00828 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00829
00830
00831 if (pos & 2) cur += tid_lt[2];
00832
00833
00834 if (IsValidTile(tile + cur) &&
00835 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00836 }
00837 return false;
00838 }
00839
00848 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00849 {
00850 if (DistanceFromEdge(tile) == 0) return false;
00851
00852
00853 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && GetBridgeAxis(tile) == DiagDirToAxis(dir)) return false;
00854
00855
00856 if (GetTownRoadBits(tile) == ROAD_NONE) {
00857
00858
00859
00860 if (DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_Y : ROAD_X), 0, DC_AUTO, CMD_BUILD_ROAD).Failed() &&
00861 DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR).Failed()) {
00862 return false;
00863 }
00864 }
00865
00866 Slope cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile) : GetTileSlope(tile);
00867 bool ret = !IsNeighborRoadTile(tile, dir, t->layout == TL_ORIGINAL ? 1 : 2);
00868 if (cur_slope == SLOPE_FLAT) return ret;
00869
00870
00871
00872 Slope desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00873 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00874 if (Chance16(1, 8)) {
00875 CommandCost res = CMD_ERROR;
00876 if (!_generating_world && Chance16(1, 10)) {
00877
00878 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00879 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00880 }
00881 if (res.Failed() && Chance16(1, 3)) {
00882
00883 return ret;
00884 }
00885 }
00886 return false;
00887 }
00888 return ret;
00889 }
00890
00891 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00892 {
00893 assert(tile < MapSize());
00894
00895 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00896 if (r.Failed() || r.GetCost() >= (_price[PR_TERRAFORM] + 2) * 8) return false;
00897 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00898 return true;
00899 }
00900
00901 static void LevelTownLand(TileIndex tile)
00902 {
00903 assert(tile < MapSize());
00904
00905
00906 if (IsTileType(tile, MP_HOUSE)) return;
00907 Slope tileh = GetTileSlope(tile);
00908 if (tileh == SLOPE_FLAT) return;
00909
00910
00911 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00912 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00913 }
00914 }
00915
00925 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00926 {
00927
00928 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00929 RoadBits rcmd = ROAD_NONE;
00930
00931 switch (t->layout) {
00932 default: NOT_REACHED();
00933
00934 case TL_2X2_GRID:
00935 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00936 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00937 break;
00938
00939 case TL_3X3_GRID:
00940 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00941 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00942 break;
00943 }
00944
00945
00946 if (rcmd != ROAD_ALL) return rcmd;
00947
00948 RoadBits rb_template;
00949
00950 switch (GetTileSlope(tile)) {
00951 default: rb_template = ROAD_ALL; break;
00952 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00953 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00954 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00955 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00956 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00957 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00958 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00959 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00960 case SLOPE_STEEP_W:
00961 case SLOPE_STEEP_S:
00962 case SLOPE_STEEP_E:
00963 case SLOPE_STEEP_N:
00964 rb_template = ROAD_NONE;
00965 break;
00966 }
00967
00968
00969 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00970
00971 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00972 }
00973
00984 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00985 {
00986
00987 if (DistanceFromEdge(tile) == 0) return false;
00988
00989 uint counter = 0;
00990
00991
00992 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00993
00994
00995
00996 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
00997 case MP_HOUSE:
00998 case MP_VOID:
00999 counter++;
01000 break;
01001
01002 default:
01003 break;
01004 }
01005
01006
01007 if (counter >= 3) {
01008 if (BuildTownHouse(t, tile)) {
01009 _grow_town_result = GROWTH_SUCCEED;
01010 return true;
01011 }
01012 return false;
01013 }
01014 }
01015 return false;
01016 }
01017
01026 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
01027 {
01028 if (DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD).Succeeded()) {
01029 _grow_town_result = GROWTH_SUCCEED;
01030 return true;
01031 }
01032 return false;
01033 }
01034
01045 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
01046 {
01047 assert(bridge_dir < DIAGDIR_END);
01048
01049 const Slope slope = GetTileSlope(tile);
01050
01051
01052
01053
01054 if (slope != SLOPE_FLAT && slope & InclinedSlope(bridge_dir)) return false;
01055
01056
01057 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
01058
01059
01060 uint8 bridge_length = 0;
01061 TileIndex bridge_tile = tile;
01062
01063 const int delta = TileOffsByDiagDir(bridge_dir);
01064
01065 if (slope == SLOPE_FLAT) {
01066
01067 do {
01068 if (bridge_length++ >= 4) {
01069
01070 return false;
01071 }
01072 bridge_tile += delta;
01073 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile) && !IsSea(bridge_tile));
01074 } else {
01075 do {
01076 if (bridge_length++ >= 11) {
01077
01078 return false;
01079 }
01080 bridge_tile += delta;
01081 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile));
01082 }
01083
01084
01085 if (bridge_length == 1) return false;
01086
01087 for (uint8 times = 0; times <= 22; times++) {
01088 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
01089
01090
01091 if (DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE).Succeeded()) {
01092 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE);
01093 _grow_town_result = GROWTH_SUCCEED;
01094 return true;
01095 }
01096 }
01097
01098 return false;
01099 }
01100
01118 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01119 {
01120 RoadBits rcmd = ROAD_NONE;
01121 TileIndex tile = *tile_ptr;
01122
01123 assert(tile < MapSize());
01124
01125 if (cur_rb == ROAD_NONE) {
01126
01127
01128 _grow_town_result = GROWTH_SEARCH_STOPPED;
01129
01130 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01131 if (!_settings_game.economy.allow_town_level_crossings && IsTileType(tile, MP_RAILWAY)) return;
01132
01133
01134 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01135
01136
01137 switch (t1->layout) {
01138 default: NOT_REACHED();
01139
01140 case TL_3X3_GRID:
01141 case TL_2X2_GRID:
01142 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01143 if (rcmd == ROAD_NONE) return;
01144 break;
01145
01146 case TL_BETTER_ROADS:
01147 case TL_ORIGINAL:
01148 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01149
01150 DiagDirection source_dir = ReverseDiagDir(target_dir);
01151
01152 if (Chance16(1, 4)) {
01153
01154 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01155 }
01156
01157 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01158
01159
01160 if (target_dir != ReverseDiagDir(source_dir)) return;
01161
01162
01163 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01164 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01165 return;
01166 }
01167
01168
01169
01170 }
01171
01172 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01173 break;
01174 }
01175
01176 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01177
01178
01179
01180 _grow_town_result = GROWTH_SEARCH_STOPPED;
01181
01182 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01183
01184 switch (t1->layout) {
01185 default: NOT_REACHED();
01186
01187 case TL_3X3_GRID:
01188 case TL_2X2_GRID:
01189 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01190 break;
01191
01192 case TL_BETTER_ROADS:
01193 case TL_ORIGINAL:
01194 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01195 break;
01196 }
01197 } else {
01198 bool allow_house = true;
01199
01200
01201
01202 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01203 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD && (target_dir != DIAGDIR_END || Chance16(1, 2))) {
01204 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01205 }
01206 return;
01207 }
01208
01209
01210
01211 target_dir = RandomDiagDir();
01212 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01213
01214
01215 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01216
01217
01218 if (HasTileWaterGround(house_tile)) return;
01219
01220 if (!IsValidTile(house_tile)) return;
01221
01222 if (_settings_game.economy.allow_town_roads || _generating_world) {
01223 switch (t1->layout) {
01224 default: NOT_REACHED();
01225
01226 case TL_3X3_GRID:
01227 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01228
01229
01230 case TL_2X2_GRID:
01231 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01232 allow_house = (rcmd == ROAD_NONE);
01233 break;
01234
01235 case TL_BETTER_ROADS:
01236 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01237
01238
01239 case TL_ORIGINAL:
01240
01241
01242 rcmd = DiagDirToRoadBits(target_dir);
01243 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01244 break;
01245 }
01246 }
01247
01248 if (allow_house) {
01249
01250 if (!IsTileType(house_tile, MP_HOUSE)) {
01251
01252 if (Chance16(1, 6)) LevelTownLand(house_tile);
01253
01254
01255
01256 if (BuildTownHouse(t1, house_tile)) {
01257 _grow_town_result = GROWTH_SUCCEED;
01258 }
01259 }
01260 return;
01261 }
01262
01263 _grow_town_result = GROWTH_SEARCH_STOPPED;
01264 }
01265
01266
01267 if (HasTileWaterGround(tile)) return;
01268
01269
01270 rcmd = CleanUpRoadBits(tile, rcmd);
01271 if (rcmd == ROAD_NONE) return;
01272
01273
01274
01275
01276 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01277
01278 GrowTownWithRoad(t1, tile, rcmd);
01279 }
01280
01287 static int GrowTownAtRoad(Town *t, TileIndex tile)
01288 {
01289
01290
01291
01292 DiagDirection target_dir = DIAGDIR_END;
01293
01294 assert(tile < MapSize());
01295
01296
01297
01298
01299 switch (t->layout) {
01300 case TL_BETTER_ROADS:
01301 _grow_town_result = 10 + t->cache.num_houses * 2 / 9;
01302 break;
01303
01304 case TL_3X3_GRID:
01305 case TL_2X2_GRID:
01306 _grow_town_result = 10 + t->cache.num_houses * 1 / 9;
01307 break;
01308
01309 default:
01310 _grow_town_result = 10 + t->cache.num_houses * 4 / 9;
01311 break;
01312 }
01313
01314 do {
01315 RoadBits cur_rb = GetTownRoadBits(tile);
01316
01317
01318 GrowTownInTile(&tile, cur_rb, target_dir, t);
01319
01320
01321
01322 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01323 if (cur_rb == ROAD_NONE) {
01324 return _grow_town_result;
01325 }
01326
01327 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01328
01329 target_dir = ReverseDiagDir(GetTunnelBridgeDirection(tile));
01330 } else {
01331
01332
01333 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01334 }
01335 tile = TileAddByDiagDir(tile, target_dir);
01336
01337 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01338
01339 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && Town::GetByTile(tile) != t) {
01340 _grow_town_result = GROWTH_SUCCEED;
01341 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01342
01343
01344 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01345 SetTownIndex(tile, t->index);
01346 }
01347 }
01348
01349
01350 } while (--_grow_town_result >= 0);
01351
01352 return (_grow_town_result == -2);
01353 }
01354
01362 static RoadBits GenRandomRoadBits()
01363 {
01364 uint32 r = Random();
01365 uint a = GB(r, 0, 2);
01366 uint b = GB(r, 8, 2);
01367 if (a == b) b ^= 2;
01368 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01369 }
01370
01376 static bool GrowTown(Town *t)
01377 {
01378 static const TileIndexDiffC _town_coord_mod[] = {
01379 {-1, 0},
01380 { 1, 1},
01381 { 1, -1},
01382 {-1, -1},
01383 {-1, 0},
01384 { 0, 2},
01385 { 2, 0},
01386 { 0, -2},
01387 {-1, -1},
01388 {-2, 2},
01389 { 2, 2},
01390 { 2, -2},
01391 { 0, 0}
01392 };
01393
01394
01395 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01396
01397 TileIndex tile = t->xy;
01398
01399
01400 const TileIndexDiffC *ptr;
01401 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01402 if (GetTownRoadBits(tile) != ROAD_NONE) {
01403 int r = GrowTownAtRoad(t, tile);
01404 cur_company.Restore();
01405 return r != 0;
01406 }
01407 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01408 }
01409
01410
01411
01412 if (_settings_game.economy.allow_town_roads || _generating_world) {
01413 tile = t->xy;
01414 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01415
01416 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile) == SLOPE_FLAT) {
01417 if (DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded()) {
01418 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01419 cur_company.Restore();
01420 return true;
01421 }
01422 }
01423 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01424 }
01425 }
01426
01427 cur_company.Restore();
01428 return false;
01429 }
01430
01431 void UpdateTownRadius(Town *t)
01432 {
01433 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01434 { 4, 0, 0, 0, 0},
01435 { 16, 0, 0, 0, 0},
01436 { 25, 0, 0, 0, 0},
01437 { 36, 0, 0, 0, 0},
01438 { 49, 0, 4, 0, 0},
01439 { 64, 0, 4, 0, 0},
01440 { 64, 0, 9, 0, 1},
01441 { 64, 0, 9, 0, 4},
01442 { 64, 0, 16, 0, 4},
01443 { 81, 0, 16, 0, 4},
01444 { 81, 0, 16, 0, 4},
01445 { 81, 0, 25, 0, 9},
01446 { 81, 36, 25, 0, 9},
01447 { 81, 36, 25, 16, 9},
01448 { 81, 49, 0, 25, 9},
01449 { 81, 64, 0, 25, 9},
01450 { 81, 64, 0, 36, 9},
01451 { 81, 64, 0, 36, 16},
01452 {100, 81, 0, 49, 16},
01453 {100, 81, 0, 49, 25},
01454 {121, 81, 0, 49, 25},
01455 {121, 81, 0, 49, 25},
01456 {121, 81, 0, 49, 36},
01457 };
01458
01459 if (t->cache.num_houses < 92) {
01460 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));
01461 } else {
01462 int mass = t->cache.num_houses / 8;
01463
01464
01465
01466 t->cache.squared_town_zone_radius[0] = mass * 15 - 40;
01467 t->cache.squared_town_zone_radius[1] = mass * 9 - 15;
01468 t->cache.squared_town_zone_radius[2] = 0;
01469 t->cache.squared_town_zone_radius[3] = mass * 5 - 5;
01470 t->cache.squared_town_zone_radius[4] = mass * 3 + 5;
01471 }
01472 }
01473
01474 void UpdateTownMaxPass(Town *t)
01475 {
01476 t->supplied[CT_PASSENGERS].old_max = t->cache.population >> 3;
01477 t->supplied[CT_MAIL].old_max = t->cache.population >> 4;
01478 }
01479
01491 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
01492 {
01493 assert(_head_to_head != 0);
01494 t->head_to_head = _head_to_head;
01495 t->town_growth_counter = RandomRange(TOWN_GROWTH_TICKS) + 1;
01496 t->xy = tile;
01497 t->cache.num_houses = 0;
01498 t->time_until_rebuild = 10;
01499 UpdateTownRadius(t);
01500 t->flags = 0;
01501 t->cache.population = 0;
01502 t->grow_counter = 0;
01503 t->growth_rate = 250;
01504
01505
01506 switch (_settings_game.game_creation.landscape) {
01507 case LT_ARCTIC:
01508 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
01509 break;
01510
01511 case LT_TROPIC:
01512 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
01513 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
01514 break;
01515 }
01516
01517 t->fund_buildings_months = 0;
01518
01519 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01520
01521 t->have_ratings = 0;
01522 t->exclusivity = INVALID_COMPANY;
01523 t->exclusive_counter = 0;
01524 t->statues = 0;
01525
01526 extern int _nb_orig_names;
01527 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01528
01529 t->townnamegrfid = 0;
01530 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01531 } else {
01532
01533 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01534 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01535 }
01536 t->townnameparts = townnameparts;
01537
01538 t->UpdateVirtCoord();
01539 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01540
01541 t->InitializeLayout(layout);
01542
01543 t->larger_town = city;
01544
01545 int x = (int)size * 16 + 3;
01546 if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
01547
01548 if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;
01549
01550 t->cache.num_houses += x;
01551 UpdateTownRadius(t);
01552
01553 int i = x * 4;
01554 do {
01555 GrowTown(t);
01556 } while (--i);
01557
01558 t->cache.num_houses -= x;
01559 UpdateTownRadius(t);
01560 UpdateTownMaxPass(t);
01561 UpdateAirportsNoise();
01562 }
01563
01569 static CommandCost TownCanBePlacedHere(TileIndex tile)
01570 {
01571
01572 if (DistanceFromEdge(tile) < 12) {
01573 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB);
01574 }
01575
01576
01577 if (IsCloseToTown(tile, 20)) {
01578 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN);
01579 }
01580
01581
01582 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile) != SLOPE_FLAT) {
01583 return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
01584 }
01585
01586 return CommandCost(EXPENSES_OTHER);
01587 }
01588
01594 static bool IsUniqueTownName(const char *name)
01595 {
01596 const Town *t;
01597
01598 FOR_ALL_TOWNS(t) {
01599 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
01600 }
01601
01602 return true;
01603 }
01604
01617 CommandCost CmdFoundTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01618 {
01619 TownSize size = Extract<TownSize, 0, 2>(p1);
01620 bool city = HasBit(p1, 2);
01621 TownLayout layout = Extract<TownLayout, 3, 3>(p1);
01622 TownNameParams par(_settings_game.game_creation.town_name);
01623 bool random = HasBit(p1, 6);
01624 uint32 townnameparts = p2;
01625
01626 if (size >= TSZ_END) return CMD_ERROR;
01627 if (layout >= NUM_TLS) return CMD_ERROR;
01628
01629
01630 if (_game_mode != GM_EDITOR) {
01631 if (_settings_game.economy.found_town == TF_FORBIDDEN) return CMD_ERROR;
01632 if (size == TSZ_LARGE) return CMD_ERROR;
01633 if (random) return CMD_ERROR;
01634 if (_settings_game.economy.found_town != TF_CUSTOM_LAYOUT && layout != _settings_game.economy.town_layout) {
01635 return CMD_ERROR;
01636 }
01637 }
01638
01639 if (StrEmpty(text)) {
01640
01641 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01642 } else {
01643
01644 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
01645 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01646 }
01647
01648
01649 if (!Town::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_TOWNS);
01650
01651 if (!random) {
01652 CommandCost ret = TownCanBePlacedHere(tile);
01653 if (ret.Failed()) return ret;
01654 }
01655
01656 static const byte price_mult[][TSZ_RANDOM + 1] = {{ 15, 25, 40, 25 }, { 20, 35, 55, 35 }};
01657
01658 assert_compile(lengthof(price_mult[0]) == 4);
01659
01660 CommandCost cost(EXPENSES_OTHER, _price[PR_BUILD_TOWN]);
01661 byte mult = price_mult[city][size];
01662
01663 cost.MultiplyCost(mult);
01664
01665
01666 if (flags & DC_EXEC) {
01667 if (cost.GetCost() > GetAvailableMoneyForCommand()) {
01668 _additional_cash_required = cost.GetCost();
01669 return CommandCost(EXPENSES_OTHER);
01670 }
01671
01672 _generating_world = true;
01673 UpdateNearestTownForRoadTiles(true);
01674 Town *t;
01675 if (random) {
01676 t = CreateRandomTown(20, townnameparts, size, city, layout);
01677 if (t == NULL) {
01678 cost = CommandCost(STR_ERROR_NO_SPACE_FOR_TOWN);
01679 } else {
01680 _new_town_id = t->index;
01681 }
01682 } else {
01683 t = new Town(tile);
01684 DoCreateTown(t, tile, townnameparts, size, city, layout, true);
01685 }
01686 UpdateNearestTownForRoadTiles(false);
01687 _generating_world = false;
01688
01689 if (t != NULL && !StrEmpty(text)) {
01690 t->name = strdup(text);
01691 t->UpdateVirtCoord();
01692 }
01693
01694 if (_game_mode != GM_EDITOR) {
01695
01696 assert(!random);
01697 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
01698 SetDParam(0, _current_company);
01699 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
01700
01701 char *cn = strdup(company_name);
01702 SetDParamStr(0, cn);
01703 SetDParam(1, t->index);
01704
01705 AddTileNewsItem(STR_NEWS_NEW_TOWN, NT_INDUSTRY_OPEN, tile, cn);
01706 AI::BroadcastNewEvent(new ScriptEventTownFounded(t->index));
01707 Game::NewEvent(new ScriptEventTownFounded(t->index));
01708 }
01709 }
01710 return cost;
01711 }
01712
01722 static TileIndex AlignTileToGrid(TileIndex tile, TownLayout layout)
01723 {
01724 switch (layout) {
01725 case TL_2X2_GRID: return TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01726 case TL_3X3_GRID: return TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01727 default: return tile;
01728 }
01729 }
01730
01740 static bool IsTileAlignedToGrid(TileIndex tile, TownLayout layout)
01741 {
01742 switch (layout) {
01743 case TL_2X2_GRID: return TileX(tile) % 3 == 0 && TileY(tile) % 3 == 0;
01744 case TL_3X3_GRID: return TileX(tile) % 4 == 0 && TileY(tile) % 4 == 0;
01745 default: return true;
01746 }
01747 }
01748
01752 struct SpotData {
01753 TileIndex tile;
01754 uint max_dist;
01755 TownLayout layout;
01756 };
01757
01774 static bool FindFurthestFromWater(TileIndex tile, void *user_data)
01775 {
01776 SpotData *sp = (SpotData*)user_data;
01777 uint dist = GetClosestWaterDistance(tile, true);
01778
01779 if (IsTileType(tile, MP_CLEAR) &&
01780 GetTileSlope(tile) == SLOPE_FLAT &&
01781 IsTileAlignedToGrid(tile, sp->layout) &&
01782 dist > sp->max_dist) {
01783 sp->tile = tile;
01784 sp->max_dist = dist;
01785 }
01786
01787 return false;
01788 }
01789
01796 static bool FindNearestEmptyLand(TileIndex tile, void *user_data)
01797 {
01798 return IsTileType(tile, MP_CLEAR);
01799 }
01800
01813 static TileIndex FindNearestGoodCoastalTownSpot(TileIndex tile, TownLayout layout)
01814 {
01815 SpotData sp = { INVALID_TILE, 0, layout };
01816
01817 TileIndex coast = tile;
01818 if (CircularTileSearch(&coast, 40, FindNearestEmptyLand, NULL)) {
01819 CircularTileSearch(&coast, 10, FindFurthestFromWater, &sp);
01820 return sp.tile;
01821 }
01822
01823
01824 return INVALID_TILE;
01825 }
01826
01827 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01828 {
01829 assert(_game_mode == GM_EDITOR || _generating_world);
01830
01831 if (!Town::CanAllocateItem()) return NULL;
01832
01833 do {
01834
01835 TileIndex tile = AlignTileToGrid(RandomTile(), layout);
01836
01837
01838
01839 if (IsTileType(tile, MP_WATER)) {
01840 tile = FindNearestGoodCoastalTownSpot(tile, layout);
01841 if (tile == INVALID_TILE) continue;
01842 }
01843
01844
01845 if (TownCanBePlacedHere(tile).Failed()) continue;
01846
01847
01848 Town *t = new Town(tile);
01849
01850 DoCreateTown(t, tile, townnameparts, size, city, layout, false);
01851
01852
01853
01854 if (t->cache.population > 0) return t;
01855 CommandCost rc = DoCommand(t->xy, t->index, 0, DC_EXEC, CMD_DELETE_TOWN);
01856 assert(rc.Succeeded());
01857
01858
01859
01860
01861
01862 assert(Town::CanAllocateItem());
01863 } while (--attempts != 0);
01864
01865 return NULL;
01866 }
01867
01868 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01869
01877 bool GenerateTowns(TownLayout layout)
01878 {
01879 uint current_number = 0;
01880 uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_towns : 0;
01881 uint total = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01882 uint32 townnameparts;
01883
01884 SetGeneratingWorldProgress(GWP_TOWN, total);
01885
01886
01887
01888
01889 do {
01890 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01891 IncreaseGeneratingWorldProgress(GWP_TOWN);
01892
01893 if (!GenerateTownName(&townnameparts)) continue;
01894
01895 if (CreateRandomTown(20, townnameparts, TSZ_RANDOM, city, layout) != NULL) current_number++;
01896 } while (--total);
01897
01898 if (current_number != 0) return true;
01899
01900
01901
01902 if (GenerateTownName(&townnameparts) &&
01903 CreateRandomTown(10000, townnameparts, TSZ_RANDOM, _settings_game.economy.larger_towns != 0, layout) != NULL) {
01904 return true;
01905 }
01906
01907
01908 if (Town::GetNumItems() == 0 && _game_mode != GM_EDITOR) {
01909 ShowErrorMessage(STR_ERROR_COULD_NOT_CREATE_TOWN, INVALID_STRING_ID, WL_CRITICAL);
01910 }
01911
01912 return false;
01913 }
01914
01915
01922 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01923 {
01924 uint dist = DistanceSquare(tile, t->xy);
01925
01926 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01927
01928 HouseZonesBits smallest = HZB_TOWN_EDGE;
01929 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01930 if (dist < t->cache.squared_town_zone_radius[i]) smallest = i;
01931 }
01932
01933 return smallest;
01934 }
01935
01946 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01947 {
01948 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01949
01950 assert(cc.Succeeded());
01951
01952 IncreaseBuildingCount(t, type);
01953 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01954 if (HouseSpec::Get(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01955
01956 MarkTileDirtyByTile(tile);
01957 }
01958
01959
01970 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01971 {
01972 BuildingFlags size = HouseSpec::Get(type)->building_flags;
01973
01974 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01975 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01976 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01977 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01978 }
01979
01980
01989 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01990 {
01991
01992 Slope slope = GetTileSlope(tile);
01993 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01994
01995
01996 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01997
01998
01999 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
02000
02001
02002 return DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded();
02003 }
02004
02005
02015 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, int z, bool noslope)
02016 {
02017 if (!CanBuildHouseHere(tile, town, noslope)) return false;
02018
02019
02020 if (GetTileMaxZ(tile) != z) return false;
02021
02022 return true;
02023 }
02024
02025
02035 static bool CheckFree2x2Area(TileIndex tile, TownID town, int z, bool noslope)
02036 {
02037
02038 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02039
02040 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
02041 tile += TileOffsByDiagDir(d);
02042 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02043 }
02044
02045 return true;
02046 }
02047
02048
02056 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
02057 {
02058
02059 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02060
02061 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02062
02063 switch (t->layout) {
02064 case TL_2X2_GRID:
02065 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
02066 break;
02067
02068 case TL_3X3_GRID:
02069 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
02070 break;
02071
02072 default:
02073 break;
02074 }
02075
02076 return true;
02077 }
02078
02079
02087 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
02088 {
02089
02090 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02091
02092
02093 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02094
02095 switch (t->layout) {
02096 case TL_2X2_GRID:
02097 grid_pos.x %= 3;
02098 grid_pos.y %= 3;
02099 if ((grid_pos.x != 2 && grid_pos.x != -1) ||
02100 (grid_pos.y != 2 && grid_pos.y != -1)) return false;
02101 break;
02102
02103 case TL_3X3_GRID:
02104 if ((grid_pos.x & 3) < 2 || (grid_pos.y & 3) < 2) return false;
02105 break;
02106
02107 default:
02108 break;
02109 }
02110
02111 return true;
02112 }
02113
02114
02124 static bool CheckTownBuild2House(TileIndex *tile, Town *t, int maxz, bool noslope, DiagDirection second)
02125 {
02126
02127
02128 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
02129 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
02130
02131 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
02132 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
02133 *tile = tile2;
02134 return true;
02135 }
02136
02137 return false;
02138 }
02139
02140
02149 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, int maxz, bool noslope)
02150 {
02151 TileIndex tile2 = *tile;
02152
02153 for (DiagDirection d = DIAGDIR_SE;; d++) {
02154 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
02155 *tile = tile2;
02156 return true;
02157 }
02158 if (d == DIAGDIR_END) break;
02159 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
02160 }
02161
02162 return false;
02163 }
02164
02165
02172 static bool BuildTownHouse(Town *t, TileIndex tile)
02173 {
02174
02175 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
02176
02177
02178 if (!CanBuildHouseHere(tile, t->index, false)) return false;
02179
02180 Slope slope = GetTileSlope(tile);
02181 int maxz = GetTileMaxZ(tile);
02182
02183
02184
02185 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
02186
02187
02188 int land = _settings_game.game_creation.landscape;
02189 if (land == LT_ARCTIC && maxz > HighestSnowLine()) land = -1;
02190
02191 uint bitmask = (1 << rad) + (1 << (land + 12));
02192
02193
02194
02195
02196 HouseID houses[HOUSE_MAX];
02197 uint num = 0;
02198 uint probs[HOUSE_MAX];
02199 uint probability_max = 0;
02200
02201
02202 for (uint i = 0; i < HOUSE_MAX; i++) {
02203 const HouseSpec *hs = HouseSpec::Get(i);
02204
02205
02206 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled || hs->grf_prop.override != INVALID_HOUSE_ID) continue;
02207
02208
02209 if (hs->class_id != HOUSE_NO_CLASS) {
02210
02211 if (t->cache.building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
02212 } else {
02213
02214 if (t->cache.building_counts.id_count[i] == UINT16_MAX) continue;
02215 }
02216
02217
02218 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
02219 probability_max += cur_prob;
02220 probs[num] = cur_prob;
02221 houses[num++] = (HouseID)i;
02222 }
02223
02224 TileIndex baseTile = tile;
02225
02226 while (probability_max > 0) {
02227
02228
02229
02230
02231
02232 tile = baseTile;
02233
02234 uint r = RandomRange(probability_max);
02235 uint i;
02236 for (i = 0; i < num; i++) {
02237 if (probs[i] > r) break;
02238 r -= probs[i];
02239 }
02240
02241 HouseID house = houses[i];
02242 probability_max -= probs[i];
02243
02244
02245 num--;
02246 houses[i] = houses[num];
02247 probs[i] = probs[num];
02248
02249 const HouseSpec *hs = HouseSpec::Get(house);
02250
02251 if (_loaded_newgrf_features.has_newhouses && !_generating_world &&
02252 _game_mode != GM_EDITOR && (hs->extra_flags & BUILDING_IS_HISTORICAL) != 0) {
02253 continue;
02254 }
02255
02256 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02257
02258
02259 uint oneof = 0;
02260
02261 if (hs->building_flags & BUILDING_IS_CHURCH) {
02262 SetBit(oneof, TOWN_HAS_CHURCH);
02263 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02264 SetBit(oneof, TOWN_HAS_STADIUM);
02265 }
02266
02267 if (t->flags & oneof) continue;
02268
02269
02270 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02271 if (noslope && slope != SLOPE_FLAT) continue;
02272
02273 if (hs->building_flags & TILE_SIZE_2x2) {
02274 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02275 } else if (hs->building_flags & TILE_SIZE_2x1) {
02276 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02277 } else if (hs->building_flags & TILE_SIZE_1x2) {
02278 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02279 } else {
02280
02281 }
02282
02283 byte random_bits = Random();
02284
02285 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02286 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile, true, random_bits);
02287 if (callback_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_ALLOW_CONSTRUCTION, callback_res)) continue;
02288 }
02289
02290
02291 t->cache.num_houses++;
02292
02293
02294 t->flags |= oneof;
02295
02296 byte construction_counter = 0;
02297 byte construction_stage = 0;
02298
02299 if (_generating_world || _game_mode == GM_EDITOR) {
02300 uint32 r = Random();
02301
02302 construction_stage = TOWN_HOUSE_COMPLETED;
02303 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02304
02305 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02306 ChangePopulation(t, hs->population);
02307 } else {
02308 construction_counter = GB(r, 2, 2);
02309 }
02310 }
02311
02312 MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
02313 UpdateTownRadius(t);
02314 UpdateTownCargoes(t, tile);
02315
02316 return true;
02317 }
02318
02319 return false;
02320 }
02321
02328 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02329 {
02330 assert(IsTileType(tile, MP_HOUSE));
02331 DecreaseBuildingCount(t, house);
02332 DoClearSquare(tile);
02333 DeleteAnimatedTile(tile);
02334
02335 DeleteNewGRFInspectWindow(GSF_HOUSES, tile);
02336 }
02337
02345 TileIndexDiff GetHouseNorthPart(HouseID &house)
02346 {
02347 if (house >= 3) {
02348 if (HouseSpec::Get(house - 1)->building_flags & TILE_SIZE_2x1) {
02349 house--;
02350 return TileDiffXY(-1, 0);
02351 } else if (HouseSpec::Get(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02352 house--;
02353 return TileDiffXY(0, -1);
02354 } else if (HouseSpec::Get(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02355 house -= 2;
02356 return TileDiffXY(-1, 0);
02357 } else if (HouseSpec::Get(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02358 house -= 3;
02359 return TileDiffXY(-1, -1);
02360 }
02361 }
02362 return 0;
02363 }
02364
02365 void ClearTownHouse(Town *t, TileIndex tile)
02366 {
02367 assert(IsTileType(tile, MP_HOUSE));
02368
02369 HouseID house = GetHouseType(tile);
02370
02371
02372 tile += GetHouseNorthPart(house);
02373
02374 const HouseSpec *hs = HouseSpec::Get(house);
02375
02376
02377 if (IsHouseCompleted(tile)) {
02378 ChangePopulation(t, -hs->population);
02379 }
02380
02381 t->cache.num_houses--;
02382
02383
02384 if (hs->building_flags & BUILDING_IS_CHURCH) {
02385 ClrBit(t->flags, TOWN_HAS_CHURCH);
02386 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02387 ClrBit(t->flags, TOWN_HAS_STADIUM);
02388 }
02389
02390
02391 uint eflags = hs->building_flags;
02392 DoClearTownHouseHelper(tile, t, house);
02393 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02394 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02395 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02396
02397 UpdateTownRadius(t);
02398
02399
02400 UpdateTownCargoes(t, tile);
02401 }
02402
02412 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02413 {
02414 Town *t = Town::GetIfValid(p1);
02415 if (t == NULL) return CMD_ERROR;
02416
02417 bool reset = StrEmpty(text);
02418
02419 if (!reset) {
02420 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
02421 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
02422 }
02423
02424 if (flags & DC_EXEC) {
02425 free(t->name);
02426 t->name = reset ? NULL : strdup(text);
02427
02428 t->UpdateVirtCoord();
02429 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02430 UpdateAllStationVirtCoords();
02431 }
02432 return CommandCost();
02433 }
02434
02440 const CargoSpec *FindFirstCargoWithTownEffect(TownEffect effect)
02441 {
02442 const CargoSpec *cs;
02443 FOR_ALL_CARGOSPECS(cs) {
02444 if (cs->town_effect == effect) return cs;
02445 }
02446 return NULL;
02447 }
02448
02449 static void UpdateTownGrowRate(Town *t);
02450
02462 CommandCost CmdTownCargoGoal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02463 {
02464 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02465
02466 TownEffect te = (TownEffect)GB(p1, 16, 8);
02467 if (te < TE_BEGIN || te > TE_END) return CMD_ERROR;
02468
02469 uint16 index = GB(p1, 0, 16);
02470 Town *t = Town::GetIfValid(index);
02471 if (t == NULL) return CMD_ERROR;
02472
02473
02474 const CargoSpec *cargo = FindFirstCargoWithTownEffect(te);
02475 if (cargo == NULL) return CMD_ERROR;
02476
02477 if (flags & DC_EXEC) {
02478 t->goal[te] = p2;
02479 UpdateTownGrowRate(t);
02480 InvalidateWindowData(WC_TOWN_VIEW, index);
02481 }
02482
02483 return CommandCost();
02484 }
02485
02495 CommandCost CmdTownSetText(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02496 {
02497 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02498 Town *t = Town::GetIfValid(p1);
02499 if (t == NULL) return CMD_ERROR;
02500
02501 if (flags & DC_EXEC) {
02502 free(t->text);
02503 t->text = StrEmpty(text) ? NULL : strdup(text);
02504 InvalidateWindowData(WC_TOWN_VIEW, p1);
02505 }
02506
02507 return CommandCost();
02508 }
02509
02519 CommandCost CmdTownGrowthRate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02520 {
02521 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02522 if ((p2 & TOWN_GROW_RATE_CUSTOM) != 0) return CMD_ERROR;
02523 if (GB(p2, 16, 16) != 0) return CMD_ERROR;
02524
02525 Town *t = Town::GetIfValid(p1);
02526 if (t == NULL) return CMD_ERROR;
02527
02528 if (flags & DC_EXEC) {
02529 t->growth_rate = (p2 == 0) ? 0 : p2 | TOWN_GROW_RATE_CUSTOM;
02530 UpdateTownGrowRate(t);
02531 InvalidateWindowData(WC_TOWN_VIEW, p1);
02532 }
02533
02534 return CommandCost();
02535 }
02536
02546 CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02547 {
02548 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) return CMD_ERROR;
02549 Town *t = Town::GetIfValid(p1);
02550 if (t == NULL) return CMD_ERROR;
02551
02552 if (flags & DC_EXEC) {
02553
02554 if (p2 == 0) {
02555 uint amount = RandomRange(ClampToU16(t->cache.num_houses / 10)) + 3;
02556 t->cache.num_houses += amount;
02557 UpdateTownRadius(t);
02558
02559 uint n = amount * 10;
02560 do GrowTown(t); while (--n);
02561
02562 t->cache.num_houses -= amount;
02563 } else {
02564 for (; p2 > 0; p2--) {
02565
02566 for (uint i = 0; i < 25; i++) if (GrowTown(t)) break;
02567 }
02568 }
02569 UpdateTownRadius(t);
02570
02571 UpdateTownMaxPass(t);
02572 }
02573
02574 return CommandCost();
02575 }
02576
02586 CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02587 {
02588 if (_game_mode != GM_EDITOR && !_generating_world) return CMD_ERROR;
02589 Town *t = Town::GetIfValid(p1);
02590 if (t == NULL) return CMD_ERROR;
02591
02592
02593 const Station *st;
02594 FOR_ALL_STATIONS(st) {
02595 if (st->town == t) {
02596
02597 if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
02598
02599 CommandCost ret = DoCommand(st->airport.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02600 if (ret.Failed()) return ret;
02601 }
02602 }
02603
02604
02605 const Depot *d;
02606 FOR_ALL_DEPOTS(d) {
02607 if (d->town == t) return CMD_ERROR;
02608 }
02609
02610
02611 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
02612 bool try_clear = false;
02613 switch (GetTileType(tile)) {
02614 case MP_ROAD:
02615 try_clear = HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index;
02616 break;
02617
02618 case MP_TUNNELBRIDGE:
02619 try_clear = IsTileOwner(tile, OWNER_TOWN) && ClosestTownFromTile(tile, UINT_MAX) == t;
02620 break;
02621
02622 case MP_HOUSE:
02623 try_clear = GetTownIndex(tile) == t->index;
02624 break;
02625
02626 case MP_INDUSTRY:
02627 try_clear = Industry::GetByTile(tile)->town == t;
02628 break;
02629
02630 case MP_OBJECT:
02631 if (Town::GetNumItems() == 1) {
02632
02633 try_clear = true;
02634 } else {
02635 Object *o = Object::GetByTile(tile);
02636 if (o->town == t) {
02637 if (GetObjectType(tile) == OBJECT_STATUE) {
02638
02639 try_clear = true;
02640 } else {
02641
02642 if (flags & DC_EXEC) o->town = NULL;
02643 }
02644 }
02645 }
02646 break;
02647
02648 default:
02649 break;
02650 }
02651 if (try_clear) {
02652 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02653 if (ret.Failed()) return ret;
02654 }
02655 }
02656
02657
02658 if (flags & DC_EXEC) delete t;
02659
02660 return CommandCost();
02661 }
02662
02667 const byte _town_action_costs[TACT_COUNT] = {
02668 2, 4, 9, 35, 48, 53, 117, 175
02669 };
02670
02671 static CommandCost TownActionAdvertiseSmall(Town *t, DoCommandFlag flags)
02672 {
02673 if (flags & DC_EXEC) {
02674 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02675 }
02676 return CommandCost();
02677 }
02678
02679 static CommandCost TownActionAdvertiseMedium(Town *t, DoCommandFlag flags)
02680 {
02681 if (flags & DC_EXEC) {
02682 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02683 }
02684 return CommandCost();
02685 }
02686
02687 static CommandCost TownActionAdvertiseLarge(Town *t, DoCommandFlag flags)
02688 {
02689 if (flags & DC_EXEC) {
02690 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02691 }
02692 return CommandCost();
02693 }
02694
02695 static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlag flags)
02696 {
02697
02698 if (!_settings_game.economy.fund_roads) return CMD_ERROR;
02699
02700 if (flags & DC_EXEC) {
02701 t->road_build_months = 6;
02702
02703 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
02704 SetDParam(0, _current_company);
02705 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02706
02707 char *cn = strdup(company_name);
02708 SetDParam(0, t->index);
02709 SetDParamStr(1, cn);
02710
02711 AddNewsItem(STR_NEWS_ROAD_REBUILDING, NT_GENERAL, NF_NORMAL, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cn);
02712 AI::BroadcastNewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02713 Game::NewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02714 }
02715 return CommandCost();
02716 }
02717
02723 static bool TryClearTile(TileIndex tile)
02724 {
02725 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02726 CommandCost r = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
02727 cur_company.Restore();
02728 return r.Succeeded();
02729 }
02730
02732 struct StatueBuildSearchData {
02733 TileIndex best_position;
02734 int tile_count;
02735
02736 StatueBuildSearchData(TileIndex best_pos, int count) : best_position(best_pos), tile_count(count) { }
02737 };
02738
02745 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02746 {
02747 static const int STATUE_NUMBER_INNER_TILES = 25;
02748
02749 StatueBuildSearchData *statue_data = (StatueBuildSearchData *)user_data;
02750 statue_data->tile_count++;
02751
02752
02753 if (IsSteepSlope(GetTileSlope(tile))) return false;
02754
02755 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02756
02757
02758 if ((IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES)) && TryClearTile(tile)) {
02759 statue_data->best_position = tile;
02760 return true;
02761 }
02762
02763 bool house = IsTileType(tile, MP_HOUSE);
02764
02765
02766 if (statue_data->tile_count <= STATUE_NUMBER_INNER_TILES) {
02767
02768 if (house && statue_data->best_position == INVALID_TILE && TryClearTile(tile)) {
02769 statue_data->best_position = tile;
02770 }
02771
02772
02773 return statue_data->tile_count == STATUE_NUMBER_INNER_TILES && statue_data->best_position != INVALID_TILE;
02774 }
02775
02776
02777 statue_data->best_position = tile;
02778 return house && TryClearTile(tile);
02779 }
02780
02788 static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
02789 {
02790 if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS);
02791
02792 TileIndex tile = t->xy;
02793 StatueBuildSearchData statue_data(INVALID_TILE, 0);
02794 if (!CircularTileSearch(&tile, 9, SearchTileForStatue, &statue_data)) return_cmd_error(STR_ERROR_STATUE_NO_SUITABLE_PLACE);
02795
02796 if (flags & DC_EXEC) {
02797 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02798 DoCommand(statue_data.best_position, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02799 cur_company.Restore();
02800 BuildObject(OBJECT_STATUE, statue_data.best_position, _current_company, t);
02801 SetBit(t->statues, _current_company);
02802 MarkTileDirtyByTile(statue_data.best_position);
02803 }
02804 return CommandCost();
02805 }
02806
02807 static CommandCost TownActionFundBuildings(Town *t, DoCommandFlag flags)
02808 {
02809
02810 if (!_settings_game.economy.fund_buildings) return CMD_ERROR;
02811
02812 if (flags & DC_EXEC) {
02813
02814 t->grow_counter = 1;
02815
02816 SetBit(t->flags, TOWN_IS_FUNDED);
02817
02818 t->fund_buildings_months = 3;
02819
02820 SetWindowDirty(WC_TOWN_VIEW, t->index);
02821 }
02822 return CommandCost();
02823 }
02824
02825 static CommandCost TownActionBuyRights(Town *t, DoCommandFlag flags)
02826 {
02827
02828 if (!_settings_game.economy.exclusive_rights) return CMD_ERROR;
02829
02830 if (flags & DC_EXEC) {
02831 t->exclusive_counter = 12;
02832 t->exclusivity = _current_company;
02833
02834 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02835
02836 SetWindowClassesDirty(WC_STATION_VIEW);
02837
02838
02839 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
02840 cni->FillData(Company::Get(_current_company));
02841 SetDParam(0, STR_NEWS_EXCLUSIVE_RIGHTS_TITLE);
02842 SetDParam(1, STR_NEWS_EXCLUSIVE_RIGHTS_DESCRIPTION);
02843 SetDParam(2, t->index);
02844 SetDParamStr(3, cni->company_name);
02845 AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NT_GENERAL, NF_COMPANY, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cni);
02846 AI::BroadcastNewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02847 Game::NewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02848 }
02849 return CommandCost();
02850 }
02851
02852 static CommandCost TownActionBribe(Town *t, DoCommandFlag flags)
02853 {
02854 if (flags & DC_EXEC) {
02855 if (Chance16(1, 14)) {
02856
02857 t->unwanted[_current_company] = 6;
02858
02859
02860 Station *st;
02861 FOR_ALL_STATIONS(st) {
02862 if (st->town == t && st->owner == _current_company) {
02863 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02864 }
02865 }
02866
02867
02868
02869 if (IsLocalCompany()) ShowErrorMessage(STR_ERROR_BRIBE_FAILED, INVALID_STRING_ID, WL_INFO);
02870
02871
02872
02873
02874
02875 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02876 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02877 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02878 }
02879 } else {
02880 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02881 }
02882 }
02883 return CommandCost();
02884 }
02885
02886 typedef CommandCost TownActionProc(Town *t, DoCommandFlag flags);
02887 static TownActionProc * const _town_action_proc[] = {
02888 TownActionAdvertiseSmall,
02889 TownActionAdvertiseMedium,
02890 TownActionAdvertiseLarge,
02891 TownActionRoadRebuild,
02892 TownActionBuildStatue,
02893 TownActionFundBuildings,
02894 TownActionBuyRights,
02895 TownActionBribe
02896 };
02897
02905 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02906 {
02907 int num = 0;
02908 TownActions buttons = TACT_NONE;
02909
02910
02911 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02912
02913
02914 Money avail = Company::Get(cid)->money + _price[PR_STATION_VALUE] * 200;
02915
02916
02917
02918 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02919 const TownActions cur = (TownActions)(1 << i);
02920
02921
02922 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM)) continue;
02923
02924
02925 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights) continue;
02926
02927
02928 if (cur == TACT_FUND_BUILDINGS && !_settings_game.economy.fund_buildings) continue;
02929
02930
02931 if (cur == TACT_ROAD_REBUILD && !_settings_game.economy.fund_roads) continue;
02932
02933
02934 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid)) continue;
02935
02936 if (avail >= _town_action_costs[i] * _price[PR_TOWN_ACTION] >> 8) {
02937 buttons |= cur;
02938 num++;
02939 }
02940 }
02941 }
02942
02943 if (nump != NULL) *nump = num;
02944 return buttons;
02945 }
02946
02958 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02959 {
02960 Town *t = Town::GetIfValid(p1);
02961 if (t == NULL || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02962
02963 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02964
02965 CommandCost cost(EXPENSES_OTHER, _price[PR_TOWN_ACTION] * _town_action_costs[p2] >> 8);
02966
02967 CommandCost ret = _town_action_proc[p2](t, flags);
02968 if (ret.Failed()) return ret;
02969
02970 if (flags & DC_EXEC) {
02971 SetWindowDirty(WC_TOWN_AUTHORITY, p1);
02972 }
02973
02974 return cost;
02975 }
02976
02977 static void UpdateTownRating(Town *t)
02978 {
02979
02980 const Company *c;
02981 FOR_ALL_COMPANIES(c) {
02982 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02983 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02984 }
02985 }
02986
02987 const Station *st;
02988 FOR_ALL_STATIONS(st) {
02989 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
02990 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02991 if (Company::IsValidID(st->owner)) {
02992 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02993 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02994 }
02995 } else {
02996 if (Company::IsValidID(st->owner)) {
02997 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02998 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02999 }
03000 }
03001 }
03002 }
03003
03004
03005 for (uint i = 0; i < MAX_COMPANIES; i++) {
03006 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
03007 }
03008
03009 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03010 }
03011
03012 static void UpdateTownGrowRate(Town *t)
03013 {
03014 ClrBit(t->flags, TOWN_IS_FUNDED);
03015 SetWindowDirty(WC_TOWN_VIEW, t->index);
03016
03017 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
03018
03019 if (t->fund_buildings_months == 0) {
03020
03021 for (int i = TE_BEGIN; i < TE_END; i++) {
03022 switch (t->goal[i]) {
03023 case TOWN_GROWTH_WINTER:
03024 if (TileHeight(t->xy) >= GetSnowLine() && t->received[i].old_act == 0 && t->cache.population > 90) return;
03025 break;
03026 case TOWN_GROWTH_DESERT:
03027 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && t->received[i].old_act == 0 && t->cache.population > 60) return;
03028 break;
03029 default:
03030 if (t->goal[i] > t->received[i].old_act) return;
03031 break;
03032 }
03033 }
03034 }
03035
03036 if ((t->growth_rate & TOWN_GROW_RATE_CUSTOM) != 0) {
03037 SetBit(t->flags, TOWN_IS_FUNDED);
03038 SetWindowDirty(WC_TOWN_VIEW, t->index);
03039 return;
03040 }
03041
03046 static const uint16 _grow_count_values[2][6] = {
03047 { 120, 120, 120, 100, 80, 60 },
03048 { 320, 420, 300, 220, 160, 100 }
03049 };
03050
03051 int n = 0;
03052
03053 const Station *st;
03054 FOR_ALL_STATIONS(st) {
03055 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
03056 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
03057 n++;
03058 }
03059 }
03060 }
03061
03062 uint16 m;
03063
03064 if (t->fund_buildings_months != 0) {
03065 m = _grow_count_values[0][min(n, 5)];
03066 } else {
03067 m = _grow_count_values[1][min(n, 5)];
03068 if (n == 0 && !Chance16(1, 12)) return;
03069 }
03070
03071
03072
03073 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
03074
03075 m >>= growth_multiplier;
03076 if (t->larger_town) m /= 2;
03077
03078 t->growth_rate = m / (t->cache.num_houses / 50 + 1);
03079 if (m <= t->grow_counter) {
03080 t->grow_counter = m;
03081 }
03082
03083 SetBit(t->flags, TOWN_IS_FUNDED);
03084 SetWindowDirty(WC_TOWN_VIEW, t->index);
03085 }
03086
03087 static void UpdateTownAmounts(Town *t)
03088 {
03089 for (CargoID i = 0; i < NUM_CARGO; i++) t->supplied[i].NewMonth();
03090 for (int i = TE_BEGIN; i < TE_END; i++) t->received[i].NewMonth();
03091 if (t->fund_buildings_months != 0) t->fund_buildings_months--;
03092
03093 SetWindowDirty(WC_TOWN_VIEW, t->index);
03094 }
03095
03096 static void UpdateTownUnwanted(Town *t)
03097 {
03098 const Company *c;
03099
03100 FOR_ALL_COMPANIES(c) {
03101 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
03102 }
03103 }
03104
03111 CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
03112 {
03113 if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
03114
03115 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
03116 if (t == NULL) return CommandCost();
03117
03118 if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
03119
03120 SetDParam(0, t->index);
03121 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03122 }
03123
03132 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
03133 {
03134 Town *t;
03135 uint best = threshold;
03136 Town *best_town = NULL;
03137
03138 FOR_ALL_TOWNS(t) {
03139 uint dist = DistanceManhattan(tile, t->xy);
03140 if (dist < best) {
03141 best = dist;
03142 best_town = t;
03143 }
03144 }
03145
03146 return best_town;
03147 }
03148
03157 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
03158 {
03159 switch (GetTileType(tile)) {
03160 case MP_ROAD:
03161 if (IsRoadDepot(tile)) return CalcClosestTownFromTile(tile, threshold);
03162
03163 if (!HasTownOwnedRoad(tile)) {
03164 TownID tid = GetTownIndex(tile);
03165
03166 if (tid == (TownID)INVALID_TOWN) {
03167
03168 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
03169 assert(Town::GetNumItems() == 0);
03170 return NULL;
03171 }
03172
03173 assert(Town::IsValidID(tid));
03174 Town *town = Town::Get(tid);
03175
03176 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
03177
03178 return town;
03179 }
03180
03181
03182 case MP_HOUSE:
03183 return Town::GetByTile(tile);
03184
03185 default:
03186 return CalcClosestTownFromTile(tile, threshold);
03187 }
03188 }
03189
03190 static bool _town_rating_test = false;
03191 static SmallMap<const Town *, int, 4> _town_test_ratings;
03192
03198 void SetTownRatingTestMode(bool mode)
03199 {
03200 static int ref_count = 0;
03201 if (mode) {
03202 if (ref_count == 0) {
03203 _town_test_ratings.Clear();
03204 }
03205 ref_count++;
03206 } else {
03207 assert(ref_count > 0);
03208 ref_count--;
03209 }
03210 _town_rating_test = !(ref_count == 0);
03211 }
03212
03218 static int GetRating(const Town *t)
03219 {
03220 if (_town_rating_test) {
03221 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
03222 if (it != _town_test_ratings.End()) {
03223 return it->second;
03224 }
03225 }
03226 return t->ratings[_current_company];
03227 }
03228
03236 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
03237 {
03238
03239 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
03240 !Company::IsValidID(_current_company) ||
03241 (_cheats.magic_bulldozer.value && add < 0)) {
03242 return;
03243 }
03244
03245 int rating = GetRating(t);
03246 if (add < 0) {
03247 if (rating > max) {
03248 rating += add;
03249 if (rating < max) rating = max;
03250 }
03251 } else {
03252 if (rating < max) {
03253 rating += add;
03254 if (rating > max) rating = max;
03255 }
03256 }
03257 if (_town_rating_test) {
03258 _town_test_ratings[t] = rating;
03259 } else {
03260 SetBit(t->have_ratings, _current_company);
03261 t->ratings[_current_company] = rating;
03262 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03263 }
03264 }
03265
03273 CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
03274 {
03275
03276 if (t == NULL || !Company::IsValidID(_current_company) ||
03277 _cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
03278 return CommandCost();
03279 }
03280
03281
03282 static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
03283
03284 { RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE},
03285 { RATING_ROAD_NEEDED_NEUTRAL, RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL},
03286 { RATING_ROAD_NEEDED_HOSTILE, RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE},
03287 };
03288
03289
03290
03291
03292
03293 int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][type];
03294
03295 if (GetRating(t) < needed) {
03296 SetDParam(0, t->index);
03297 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03298 }
03299
03300 return CommandCost();
03301 }
03302
03303 void TownsMonthlyLoop()
03304 {
03305 Town *t;
03306
03307 FOR_ALL_TOWNS(t) {
03308 if (t->road_build_months != 0) t->road_build_months--;
03309
03310 if (t->exclusive_counter != 0) {
03311 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
03312 }
03313
03314 UpdateTownAmounts(t);
03315 UpdateTownRating(t);
03316 UpdateTownGrowRate(t);
03317 UpdateTownUnwanted(t);
03318 UpdateTownCargoes(t);
03319 }
03320
03321 UpdateTownCargoBitmap();
03322 }
03323
03324 void TownsYearlyLoop()
03325 {
03326
03327 for (TileIndex t = 0; t < MapSize(); t++) {
03328 if (!IsTileType(t, MP_HOUSE)) continue;
03329 IncrementHouseAge(t);
03330 }
03331 }
03332
03333 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
03334 {
03335 if (AutoslopeEnabled()) {
03336 HouseID house = GetHouseType(tile);
03337 GetHouseNorthPart(house);
03338 const HouseSpec *hs = HouseSpec::Get(house);
03339
03340
03341 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
03342 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
03343 bool allow_terraform = true;
03344
03345
03346 house = GetHouseType(tile);
03347 hs = HouseSpec::Get(house);
03348 if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
03349
03350 uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
03351 if (res != CALLBACK_FAILED && ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_AUTOSLOPE, res)) allow_terraform = false;
03352 }
03353
03354 if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
03355 }
03356 }
03357
03358 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
03359 }
03360
03362 extern const TileTypeProcs _tile_type_town_procs = {
03363 DrawTile_Town,
03364 GetSlopePixelZ_Town,
03365 ClearTile_Town,
03366 AddAcceptedCargo_Town,
03367 GetTileDesc_Town,
03368 GetTileTrackStatus_Town,
03369 NULL,
03370 AnimateTile_Town,
03371 TileLoop_Town,
03372 ChangeTileOwner_Town,
03373 AddProducedCargo_Town,
03374 NULL,
03375 GetFoundation_Town,
03376 TerraformTile_Town,
03377 };
03378
03379
03380 HouseSpec _house_specs[HOUSE_MAX];
03381
03382 void ResetHouses()
03383 {
03384 memset(&_house_specs, 0, sizeof(_house_specs));
03385 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
03386
03387
03388 _house_mngr.ResetOverride();
03389 }