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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
00343
00344 if (Town::GetNumItems() > (size_t) (dist * dist * 2)) {
00345 const int tx = TileX(tile);
00346 const int ty = TileY(tile);
00347 TileArea tile_area = TileArea(
00348 TileXY(max(0, tx - (int) dist), max(0, ty - (int) dist)),
00349 TileXY(min(MapMaxX(), tx + (int) dist), min(MapMaxY(), ty + (int) dist))
00350 );
00351 TILE_AREA_LOOP(atile, tile_area) {
00352 if (GetTileType(atile) == MP_HOUSE) {
00353 Town *t = Town::GetByTile(atile);
00354 if (DistanceManhattan(tile, t->xy) < dist) return true;
00355 }
00356 }
00357 return false;
00358 }
00359
00360 const Town *t;
00361
00362 FOR_ALL_TOWNS(t) {
00363 if (DistanceManhattan(tile, t->xy) < dist) return true;
00364 }
00365 return false;
00366 }
00367
00372 void Town::UpdateVirtCoord()
00373 {
00374 Point pt = RemapCoords2(TileX(this->xy) * TILE_SIZE, TileY(this->xy) * TILE_SIZE);
00375 SetDParam(0, this->index);
00376 SetDParam(1, this->cache.population);
00377 this->cache.sign.UpdatePosition(pt.x, pt.y - 24 * ZOOM_LVL_BASE,
00378 _settings_client.gui.population_in_label ? STR_VIEWPORT_TOWN_POP : STR_VIEWPORT_TOWN);
00379
00380 SetWindowDirty(WC_TOWN_VIEW, this->index);
00381 }
00382
00384 void UpdateAllTownVirtCoords()
00385 {
00386 Town *t;
00387
00388 FOR_ALL_TOWNS(t) {
00389 t->UpdateVirtCoord();
00390 }
00391 }
00392
00398 static void ChangePopulation(Town *t, int mod)
00399 {
00400 t->cache.population += mod;
00401 InvalidateWindowData(WC_TOWN_VIEW, t->index);
00402 t->UpdateVirtCoord();
00403
00404 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
00405 }
00406
00412 uint32 GetWorldPopulation()
00413 {
00414 uint32 pop = 0;
00415 const Town *t;
00416
00417 FOR_ALL_TOWNS(t) pop += t->cache.population;
00418 return pop;
00419 }
00420
00425 static void MakeSingleHouseBigger(TileIndex tile)
00426 {
00427 assert(IsTileType(tile, MP_HOUSE));
00428
00429
00430 IncHouseConstructionTick(tile);
00431 if (GetHouseConstructionTick(tile) != 0) return;
00432
00433 AnimateNewHouseConstruction(tile);
00434
00435 if (IsHouseCompleted(tile)) {
00436
00437
00438 ChangePopulation(Town::GetByTile(tile), HouseSpec::Get(GetHouseType(tile))->population);
00439 ResetHouseAge(tile);
00440 }
00441 MarkTileDirtyByTile(tile);
00442 }
00443
00448 static void MakeTownHouseBigger(TileIndex tile)
00449 {
00450 uint flags = HouseSpec::Get(GetHouseType(tile))->building_flags;
00451 if (flags & BUILDING_HAS_1_TILE) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 0));
00452 if (flags & BUILDING_2_TILES_Y) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 1));
00453 if (flags & BUILDING_2_TILES_X) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 0));
00454 if (flags & BUILDING_HAS_4_TILES) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 1));
00455 }
00456
00463 static void TileLoop_Town(TileIndex tile)
00464 {
00465 HouseID house_id = GetHouseType(tile);
00466
00467
00468
00469 if (house_id >= NEW_HOUSE_OFFSET && !NewHouseTileLoop(tile)) return;
00470
00471 if (!IsHouseCompleted(tile)) {
00472
00473 MakeTownHouseBigger(tile);
00474 return;
00475 }
00476
00477 const HouseSpec *hs = HouseSpec::Get(house_id);
00478
00479
00480 if ((hs->building_flags & BUILDING_IS_ANIMATED) &&
00481 house_id < NEW_HOUSE_OFFSET &&
00482 !LiftHasDestination(tile) &&
00483 Chance16(1, 2)) {
00484 AddAnimatedTile(tile);
00485 }
00486
00487 Town *t = Town::GetByTile(tile);
00488 uint32 r = Random();
00489
00490 StationFinder stations(TileArea(tile, 1, 1));
00491
00492 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00493 for (uint i = 0; i < 256; i++) {
00494 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, r, house_id, t, tile);
00495
00496 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00497
00498 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00499 if (cargo == CT_INVALID) continue;
00500
00501 uint amt = GB(callback, 0, 8);
00502 if (amt == 0) continue;
00503
00504 uint moved = MoveGoodsToStation(cargo, amt, ST_TOWN, t->index, stations.GetStations());
00505
00506 const CargoSpec *cs = CargoSpec::Get(cargo);
00507 t->supplied[cs->Index()].new_max += amt;
00508 t->supplied[cs->Index()].new_act += moved;
00509 }
00510 } else {
00511 if (GB(r, 0, 8) < hs->population) {
00512 uint amt = GB(r, 0, 8) / 8 + 1;
00513
00514 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00515 t->supplied[CT_PASSENGERS].new_max += amt;
00516 t->supplied[CT_PASSENGERS].new_act += MoveGoodsToStation(CT_PASSENGERS, amt, ST_TOWN, t->index, stations.GetStations());
00517 }
00518
00519 if (GB(r, 8, 8) < hs->mail_generation) {
00520 uint amt = GB(r, 8, 8) / 8 + 1;
00521
00522 if (EconomyIsInRecession()) amt = (amt + 1) >> 1;
00523 t->supplied[CT_MAIL].new_max += amt;
00524 t->supplied[CT_MAIL].new_act += MoveGoodsToStation(CT_MAIL, amt, ST_TOWN, t->index, stations.GetStations());
00525 }
00526 }
00527
00528 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
00529
00530 if ((hs->building_flags & BUILDING_HAS_1_TILE) &&
00531 HasBit(t->flags, TOWN_IS_GROWING) &&
00532 CanDeleteHouse(tile) &&
00533 GetHouseAge(tile) >= hs->minimum_life &&
00534 --t->time_until_rebuild == 0) {
00535 t->time_until_rebuild = GB(r, 16, 8) + 192;
00536
00537 ClearTownHouse(t, tile);
00538
00539
00540 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00541 }
00542
00543 cur_company.Restore();
00544 }
00545
00546 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00547 {
00548 if (flags & DC_AUTO) return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
00549 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00550
00551 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00552
00553 CommandCost cost(EXPENSES_CONSTRUCTION);
00554 cost.AddCost(hs->GetRemovalCost());
00555
00556 int rating = hs->remove_rating_decrease;
00557 Town *t = Town::GetByTile(tile);
00558
00559 if (Company::IsValidID(_current_company)) {
00560 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00561 SetDParam(0, t->index);
00562 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
00563 }
00564 }
00565
00566 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00567 if (flags & DC_EXEC) {
00568 ClearTownHouse(t, tile);
00569 }
00570
00571 return cost;
00572 }
00573
00574 static void AddProducedCargo_Town(TileIndex tile, CargoArray &produced)
00575 {
00576 HouseID house_id = GetHouseType(tile);
00577 const HouseSpec *hs = HouseSpec::Get(house_id);
00578 Town *t = Town::GetByTile(tile);
00579
00580 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00581 for (uint i = 0; i < 256; i++) {
00582 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00583
00584 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00585
00586 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grf_prop.grffile);
00587
00588 if (cargo == CT_INVALID) continue;
00589 produced[cargo]++;
00590 }
00591 } else {
00592 if (hs->population > 0) {
00593 produced[CT_PASSENGERS]++;
00594 }
00595 if (hs->mail_generation > 0) {
00596 produced[CT_MAIL]++;
00597 }
00598 }
00599 }
00600
00601 static inline void AddAcceptedCargoSetMask(CargoID cargo, uint amount, CargoArray &acceptance, uint32 *always_accepted)
00602 {
00603 if (cargo == CT_INVALID || amount == 0) return;
00604 acceptance[cargo] += amount;
00605 SetBit(*always_accepted, cargo);
00606 }
00607
00608 static void AddAcceptedCargo_Town(TileIndex tile, CargoArray &acceptance, uint32 *always_accepted)
00609 {
00610 const HouseSpec *hs = HouseSpec::Get(GetHouseType(tile));
00611 CargoID accepts[3];
00612
00613
00614 for (uint8 i = 0; i < lengthof(accepts); i++) {
00615 accepts[i] = hs->accepts_cargo[i];
00616 }
00617
00618
00619 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00620 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00621 if (callback != CALLBACK_FAILED) {
00622
00623 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grf_prop.grffile);
00624 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grf_prop.grffile);
00625 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grf_prop.grffile);
00626 }
00627 }
00628
00629
00630 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00631 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), Town::GetByTile(tile), tile);
00632 if (callback != CALLBACK_FAILED) {
00633 AddAcceptedCargoSetMask(accepts[0], GB(callback, 0, 4), acceptance, always_accepted);
00634 AddAcceptedCargoSetMask(accepts[1], GB(callback, 4, 4), acceptance, always_accepted);
00635 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00636
00637 AddAcceptedCargoSetMask(CT_FOOD, GB(callback, 8, 4), acceptance, always_accepted);
00638 } else {
00639 AddAcceptedCargoSetMask(accepts[2], GB(callback, 8, 4), acceptance, always_accepted);
00640 }
00641 return;
00642 }
00643 }
00644
00645
00646 for (uint8 i = 0; i < lengthof(accepts); i++) {
00647 AddAcceptedCargoSetMask(accepts[i], hs->cargo_acceptance[i], acceptance, always_accepted);
00648 }
00649 }
00650
00651 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00652 {
00653 const HouseID house = GetHouseType(tile);
00654 const HouseSpec *hs = HouseSpec::Get(house);
00655 bool house_completed = IsHouseCompleted(tile);
00656
00657 td->str = hs->building_name;
00658
00659 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, Town::GetByTile(tile), tile);
00660 if (callback_res != CALLBACK_FAILED && callback_res != 0x400) {
00661 if (callback_res > 0x400) {
00662 ErrorUnknownCallbackResult(hs->grf_prop.grffile->grfid, CBID_HOUSE_CUSTOM_NAME, callback_res);
00663 } else {
00664 StringID new_name = GetGRFStringID(hs->grf_prop.grffile->grfid, 0xD000 + callback_res);
00665 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00666 td->str = new_name;
00667 }
00668 }
00669 }
00670
00671 if (!house_completed) {
00672 SetDParamX(td->dparam, 0, td->str);
00673 td->str = STR_LAI_TOWN_INDUSTRY_DESCRIPTION_UNDER_CONSTRUCTION;
00674 }
00675
00676 if (hs->grf_prop.grffile != NULL) {
00677 const GRFConfig *gc = GetGRFConfig(hs->grf_prop.grffile->grfid);
00678 td->grf = gc->GetName();
00679 }
00680
00681 td->owner[0] = OWNER_TOWN;
00682 }
00683
00684 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00685 {
00686
00687 return 0;
00688 }
00689
00690 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00691 {
00692
00693 }
00694
00698 void UpdateTownCargoTotal(Town *t)
00699 {
00700 t->cargo_accepted_total = 0;
00701
00702 const TileArea &area = t->cargo_accepted.GetArea();
00703 TILE_AREA_LOOP(tile, area) {
00704 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00705 t->cargo_accepted_total |= t->cargo_accepted[tile];
00706 }
00707 }
00708 }
00709
00716 static void UpdateTownCargoes(Town *t, TileIndex start, bool update_total = true)
00717 {
00718 CargoArray accepted, produced;
00719 uint32 dummy;
00720
00721
00722
00723
00724 TileArea area = AcceptanceMatrix::GetAreaForTile(start, 1);
00725 TILE_AREA_LOOP(tile, area) {
00726 if (!IsTileType(tile, MP_HOUSE) || GetTownIndex(tile) != t->index) continue;
00727
00728 AddAcceptedCargo_Town(tile, accepted, &dummy);
00729 AddProducedCargo_Town(tile, produced);
00730 }
00731
00732
00733 uint32 acc = 0;
00734 for (uint cid = 0; cid < NUM_CARGO; cid++) {
00735 if (accepted[cid] >= 8) SetBit(acc, cid);
00736 if (produced[cid] > 0) SetBit(t->cargo_produced, cid);
00737 }
00738 t->cargo_accepted[start] = acc;
00739
00740 if (update_total) UpdateTownCargoTotal(t);
00741 }
00742
00746 void UpdateTownCargoes(Town *t)
00747 {
00748 t->cargo_produced = 0;
00749
00750 const TileArea &area = t->cargo_accepted.GetArea();
00751 if (area.tile == INVALID_TILE) return;
00752
00753
00754 TILE_AREA_LOOP(tile, area) {
00755 if (TileX(tile) % AcceptanceMatrix::GRID == 0 && TileY(tile) % AcceptanceMatrix::GRID == 0) {
00756 UpdateTownCargoes(t, tile, false);
00757 }
00758 }
00759
00760
00761 UpdateTownCargoTotal(t);
00762 }
00763
00765 void UpdateTownCargoBitmap()
00766 {
00767 Town *town;
00768 _town_cargoes_accepted = 0;
00769
00770 FOR_ALL_TOWNS(town) {
00771 _town_cargoes_accepted |= town->cargo_accepted_total;
00772 }
00773 }
00774
00775 static bool GrowTown(Town *t);
00776
00777 static void TownTickHandler(Town *t)
00778 {
00779 if (HasBit(t->flags, TOWN_IS_GROWING)) {
00780 int i = t->grow_counter - 1;
00781 if (i < 0) {
00782 if (GrowTown(t)) {
00783 i = t->growth_rate & (~TOWN_GROW_RATE_CUSTOM);
00784 } else {
00785 i = 0;
00786 }
00787 }
00788 t->grow_counter = i;
00789 }
00790 }
00791
00792 void OnTick_Town()
00793 {
00794 if (_game_mode == GM_EDITOR) return;
00795
00796 Town *t;
00797 FOR_ALL_TOWNS(t) {
00798
00799 if ((_tick_counter + t->index) % TOWN_GROWTH_TICKS == 0) {
00800 TownTickHandler(t);
00801 }
00802 }
00803 }
00804
00813 static RoadBits GetTownRoadBits(TileIndex tile)
00814 {
00815 if (IsRoadDepotTile(tile) || IsStandardRoadStopTile(tile)) return ROAD_NONE;
00816
00817 return GetAnyRoadBits(tile, ROADTYPE_ROAD, true);
00818 }
00819
00830 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00831 {
00832 if (!IsValidTile(tile)) return false;
00833
00834
00835 const TileIndexDiff tid_lt[3] = {
00836 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00837 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00838 TileOffsByDiagDir(ReverseDiagDir(dir)),
00839 };
00840
00841 dist_multi = (dist_multi + 1) * 4;
00842 for (uint pos = 4; pos < dist_multi; pos++) {
00843
00844 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00845
00846
00847 if (pos & 2) cur += tid_lt[2];
00848
00849
00850 if (IsValidTile(tile + cur) &&
00851 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00852 }
00853 return false;
00854 }
00855
00864 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00865 {
00866 if (DistanceFromEdge(tile) == 0) return false;
00867
00868
00869 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile) && GetBridgeAxis(tile) == DiagDirToAxis(dir)) return false;
00870
00871
00872 if (GetTownRoadBits(tile) == ROAD_NONE) {
00873
00874
00875
00876 if (DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_Y : ROAD_X), 0, DC_AUTO, CMD_BUILD_ROAD).Failed() &&
00877 DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR).Failed()) {
00878 return false;
00879 }
00880 }
00881
00882 Slope cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile) : GetTileSlope(tile);
00883 bool ret = !IsNeighborRoadTile(tile, dir, t->layout == TL_ORIGINAL ? 1 : 2);
00884 if (cur_slope == SLOPE_FLAT) return ret;
00885
00886
00887
00888 Slope desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00889 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00890 if (Chance16(1, 8)) {
00891 CommandCost res = CMD_ERROR;
00892 if (!_generating_world && Chance16(1, 10)) {
00893
00894 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00895 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00896 }
00897 if (res.Failed() && Chance16(1, 3)) {
00898
00899 return ret;
00900 }
00901 }
00902 return false;
00903 }
00904 return ret;
00905 }
00906
00907 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00908 {
00909 assert(tile < MapSize());
00910
00911 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00912 if (r.Failed() || r.GetCost() >= (_price[PR_TERRAFORM] + 2) * 8) return false;
00913 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00914 return true;
00915 }
00916
00917 static void LevelTownLand(TileIndex tile)
00918 {
00919 assert(tile < MapSize());
00920
00921
00922 if (IsTileType(tile, MP_HOUSE)) return;
00923 Slope tileh = GetTileSlope(tile);
00924 if (tileh == SLOPE_FLAT) return;
00925
00926
00927 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00928 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00929 }
00930 }
00931
00941 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00942 {
00943
00944 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00945 RoadBits rcmd = ROAD_NONE;
00946
00947 switch (t->layout) {
00948 default: NOT_REACHED();
00949
00950 case TL_2X2_GRID:
00951 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00952 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00953 break;
00954
00955 case TL_3X3_GRID:
00956 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00957 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00958 break;
00959 }
00960
00961
00962 if (rcmd != ROAD_ALL) return rcmd;
00963
00964 RoadBits rb_template;
00965
00966 switch (GetTileSlope(tile)) {
00967 default: rb_template = ROAD_ALL; break;
00968 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00969 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00970 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00971 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00972 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00973 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00974 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00975 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00976 case SLOPE_STEEP_W:
00977 case SLOPE_STEEP_S:
00978 case SLOPE_STEEP_E:
00979 case SLOPE_STEEP_N:
00980 rb_template = ROAD_NONE;
00981 break;
00982 }
00983
00984
00985 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00986
00987 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00988 }
00989
01000 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
01001 {
01002
01003 if (DistanceFromEdge(tile) == 0) return false;
01004
01005 uint counter = 0;
01006
01007
01008 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
01009
01010
01011
01012 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
01013 case MP_HOUSE:
01014 case MP_VOID:
01015 counter++;
01016 break;
01017
01018 default:
01019 break;
01020 }
01021
01022
01023 if (counter >= 3) {
01024 if (BuildTownHouse(t, tile)) {
01025 _grow_town_result = GROWTH_SUCCEED;
01026 return true;
01027 }
01028 return false;
01029 }
01030 }
01031 return false;
01032 }
01033
01042 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
01043 {
01044 if (DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD).Succeeded()) {
01045 _grow_town_result = GROWTH_SUCCEED;
01046 return true;
01047 }
01048 return false;
01049 }
01050
01061 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
01062 {
01063 assert(bridge_dir < DIAGDIR_END);
01064
01065 const Slope slope = GetTileSlope(tile);
01066
01067
01068
01069
01070 if (slope != SLOPE_FLAT && slope & InclinedSlope(bridge_dir)) return false;
01071
01072
01073 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
01074
01075
01076 uint8 bridge_length = 0;
01077 TileIndex bridge_tile = tile;
01078
01079 const int delta = TileOffsByDiagDir(bridge_dir);
01080
01081 if (slope == SLOPE_FLAT) {
01082
01083 do {
01084 if (bridge_length++ >= 4) {
01085
01086 return false;
01087 }
01088 bridge_tile += delta;
01089 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile) && !IsSea(bridge_tile));
01090 } else {
01091 do {
01092 if (bridge_length++ >= 11) {
01093
01094 return false;
01095 }
01096 bridge_tile += delta;
01097 } while (IsValidTile(bridge_tile) && IsWaterTile(bridge_tile));
01098 }
01099
01100
01101 if (bridge_length == 1) return false;
01102
01103 for (uint8 times = 0; times <= 22; times++) {
01104 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
01105
01106
01107 if (DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE).Succeeded()) {
01108 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | CommandFlagsToDCFlags(GetCommandFlags(CMD_BUILD_BRIDGE)), CMD_BUILD_BRIDGE);
01109 _grow_town_result = GROWTH_SUCCEED;
01110 return true;
01111 }
01112 }
01113
01114 return false;
01115 }
01116
01134 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01135 {
01136 RoadBits rcmd = ROAD_NONE;
01137 TileIndex tile = *tile_ptr;
01138
01139 assert(tile < MapSize());
01140
01141 if (cur_rb == ROAD_NONE) {
01142
01143
01144 _grow_town_result = GROWTH_SEARCH_STOPPED;
01145
01146 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01147 if (!_settings_game.economy.allow_town_level_crossings && IsTileType(tile, MP_RAILWAY)) return;
01148
01149
01150 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01151
01152
01153 switch (t1->layout) {
01154 default: NOT_REACHED();
01155
01156 case TL_3X3_GRID:
01157 case TL_2X2_GRID:
01158 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01159 if (rcmd == ROAD_NONE) return;
01160 break;
01161
01162 case TL_BETTER_ROADS:
01163 case TL_ORIGINAL:
01164 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01165
01166 DiagDirection source_dir = ReverseDiagDir(target_dir);
01167
01168 if (Chance16(1, 4)) {
01169
01170 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01171 }
01172
01173 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01174
01175
01176 if (target_dir != ReverseDiagDir(source_dir)) return;
01177
01178
01179 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01180 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01181 return;
01182 }
01183
01184
01185
01186 }
01187
01188 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01189 break;
01190 }
01191
01192 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01193
01194
01195
01196 _grow_town_result = GROWTH_SEARCH_STOPPED;
01197
01198 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01199
01200 switch (t1->layout) {
01201 default: NOT_REACHED();
01202
01203 case TL_3X3_GRID:
01204 case TL_2X2_GRID:
01205 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01206 break;
01207
01208 case TL_BETTER_ROADS:
01209 case TL_ORIGINAL:
01210 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01211 break;
01212 }
01213 } else {
01214 bool allow_house = true;
01215
01216
01217
01218 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01219 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD && (target_dir != DIAGDIR_END || Chance16(1, 2))) {
01220 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01221 }
01222 return;
01223 }
01224
01225
01226
01227 target_dir = RandomDiagDir();
01228 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01229
01230
01231 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01232
01233
01234 if (HasTileWaterGround(house_tile)) return;
01235
01236 if (!IsValidTile(house_tile)) return;
01237
01238 if (_settings_game.economy.allow_town_roads || _generating_world) {
01239 switch (t1->layout) {
01240 default: NOT_REACHED();
01241
01242 case TL_3X3_GRID:
01243 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01244
01245
01246 case TL_2X2_GRID:
01247 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01248 allow_house = (rcmd == ROAD_NONE);
01249 break;
01250
01251 case TL_BETTER_ROADS:
01252 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01253
01254
01255 case TL_ORIGINAL:
01256
01257
01258 rcmd = DiagDirToRoadBits(target_dir);
01259 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01260 break;
01261 }
01262 }
01263
01264 if (allow_house) {
01265
01266 if (!IsTileType(house_tile, MP_HOUSE)) {
01267
01268 if (Chance16(1, 6)) LevelTownLand(house_tile);
01269
01270
01271
01272 if (BuildTownHouse(t1, house_tile)) {
01273 _grow_town_result = GROWTH_SUCCEED;
01274 }
01275 }
01276 return;
01277 }
01278
01279 _grow_town_result = GROWTH_SEARCH_STOPPED;
01280 }
01281
01282
01283 if (HasTileWaterGround(tile)) return;
01284
01285
01286 rcmd = CleanUpRoadBits(tile, rcmd);
01287 if (rcmd == ROAD_NONE) return;
01288
01289
01290
01291
01292 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01293
01294 GrowTownWithRoad(t1, tile, rcmd);
01295 }
01296
01303 static int GrowTownAtRoad(Town *t, TileIndex tile)
01304 {
01305
01306
01307
01308 DiagDirection target_dir = DIAGDIR_END;
01309
01310 assert(tile < MapSize());
01311
01312
01313
01314
01315 switch (t->layout) {
01316 case TL_BETTER_ROADS:
01317 _grow_town_result = 10 + t->cache.num_houses * 2 / 9;
01318 break;
01319
01320 case TL_3X3_GRID:
01321 case TL_2X2_GRID:
01322 _grow_town_result = 10 + t->cache.num_houses * 1 / 9;
01323 break;
01324
01325 default:
01326 _grow_town_result = 10 + t->cache.num_houses * 4 / 9;
01327 break;
01328 }
01329
01330 do {
01331 RoadBits cur_rb = GetTownRoadBits(tile);
01332
01333
01334 GrowTownInTile(&tile, cur_rb, target_dir, t);
01335
01336
01337
01338 if (IsValidDiagDirection(target_dir)) cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01339 if (cur_rb == ROAD_NONE) {
01340 return _grow_town_result;
01341 }
01342
01343 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01344
01345 target_dir = ReverseDiagDir(GetTunnelBridgeDirection(tile));
01346 } else {
01347
01348
01349 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01350 }
01351 tile = TileAddByDiagDir(tile, target_dir);
01352
01353 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01354
01355 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && Town::GetByTile(tile) != t) {
01356 _grow_town_result = GROWTH_SUCCEED;
01357 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01358
01359
01360 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01361 SetTownIndex(tile, t->index);
01362 }
01363 }
01364
01365
01366 } while (--_grow_town_result >= 0);
01367
01368 return (_grow_town_result == -2);
01369 }
01370
01378 static RoadBits GenRandomRoadBits()
01379 {
01380 uint32 r = Random();
01381 uint a = GB(r, 0, 2);
01382 uint b = GB(r, 8, 2);
01383 if (a == b) b ^= 2;
01384 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01385 }
01386
01392 static bool GrowTown(Town *t)
01393 {
01394 static const TileIndexDiffC _town_coord_mod[] = {
01395 {-1, 0},
01396 { 1, 1},
01397 { 1, -1},
01398 {-1, -1},
01399 {-1, 0},
01400 { 0, 2},
01401 { 2, 0},
01402 { 0, -2},
01403 {-1, -1},
01404 {-2, 2},
01405 { 2, 2},
01406 { 2, -2},
01407 { 0, 0}
01408 };
01409
01410
01411 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01412
01413 TileIndex tile = t->xy;
01414
01415
01416 const TileIndexDiffC *ptr;
01417 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01418 if (GetTownRoadBits(tile) != ROAD_NONE) {
01419 int r = GrowTownAtRoad(t, tile);
01420 cur_company.Restore();
01421 return r != 0;
01422 }
01423 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01424 }
01425
01426
01427
01428 if (_settings_game.economy.allow_town_roads || _generating_world) {
01429 tile = t->xy;
01430 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01431
01432 if (!IsTileType(tile, MP_HOUSE) && IsTileFlat(tile)) {
01433 if (DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded()) {
01434 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01435 cur_company.Restore();
01436 return true;
01437 }
01438 }
01439 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01440 }
01441 }
01442
01443 cur_company.Restore();
01444 return false;
01445 }
01446
01447 void UpdateTownRadius(Town *t)
01448 {
01449 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01450 { 4, 0, 0, 0, 0},
01451 { 16, 0, 0, 0, 0},
01452 { 25, 0, 0, 0, 0},
01453 { 36, 0, 0, 0, 0},
01454 { 49, 0, 4, 0, 0},
01455 { 64, 0, 4, 0, 0},
01456 { 64, 0, 9, 0, 1},
01457 { 64, 0, 9, 0, 4},
01458 { 64, 0, 16, 0, 4},
01459 { 81, 0, 16, 0, 4},
01460 { 81, 0, 16, 0, 4},
01461 { 81, 0, 25, 0, 9},
01462 { 81, 36, 25, 0, 9},
01463 { 81, 36, 25, 16, 9},
01464 { 81, 49, 0, 25, 9},
01465 { 81, 64, 0, 25, 9},
01466 { 81, 64, 0, 36, 9},
01467 { 81, 64, 0, 36, 16},
01468 {100, 81, 0, 49, 16},
01469 {100, 81, 0, 49, 25},
01470 {121, 81, 0, 49, 25},
01471 {121, 81, 0, 49, 25},
01472 {121, 81, 0, 49, 36},
01473 };
01474
01475 if (t->cache.num_houses < 92) {
01476 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));
01477 } else {
01478 int mass = t->cache.num_houses / 8;
01479
01480
01481
01482 t->cache.squared_town_zone_radius[0] = mass * 15 - 40;
01483 t->cache.squared_town_zone_radius[1] = mass * 9 - 15;
01484 t->cache.squared_town_zone_radius[2] = 0;
01485 t->cache.squared_town_zone_radius[3] = mass * 5 - 5;
01486 t->cache.squared_town_zone_radius[4] = mass * 3 + 5;
01487 }
01488 }
01489
01490 void UpdateTownMaxPass(Town *t)
01491 {
01492 t->supplied[CT_PASSENGERS].old_max = t->cache.population >> 3;
01493 t->supplied[CT_MAIL].old_max = t->cache.population >> 4;
01494 }
01495
01507 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout, bool manual)
01508 {
01509 t->xy = tile;
01510 t->cache.num_houses = 0;
01511 t->time_until_rebuild = 10;
01512 UpdateTownRadius(t);
01513 t->flags = 0;
01514 t->cache.population = 0;
01515 t->grow_counter = 0;
01516 t->growth_rate = 250;
01517
01518
01519 switch (_settings_game.game_creation.landscape) {
01520 case LT_ARCTIC:
01521 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_WINTER;
01522 break;
01523
01524 case LT_TROPIC:
01525 if (FindFirstCargoWithTownEffect(TE_FOOD) != NULL) t->goal[TE_FOOD] = TOWN_GROWTH_DESERT;
01526 if (FindFirstCargoWithTownEffect(TE_WATER) != NULL) t->goal[TE_WATER] = TOWN_GROWTH_DESERT;
01527 break;
01528 }
01529
01530 t->fund_buildings_months = 0;
01531
01532 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01533
01534 t->have_ratings = 0;
01535 t->exclusivity = INVALID_COMPANY;
01536 t->exclusive_counter = 0;
01537 t->statues = 0;
01538
01539 extern int _nb_orig_names;
01540 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01541
01542 t->townnamegrfid = 0;
01543 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01544 } else {
01545
01546 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01547 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01548 }
01549 t->townnameparts = townnameparts;
01550
01551 t->UpdateVirtCoord();
01552 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01553
01554 t->InitializeLayout(layout);
01555
01556 t->larger_town = city;
01557
01558 int x = (int)size * 16 + 3;
01559 if (size == TSZ_RANDOM) x = (Random() & 0xF) + 8;
01560
01561 if (city && (!manual || _game_mode == GM_EDITOR)) x *= _settings_game.economy.initial_city_size;
01562
01563 t->cache.num_houses += x;
01564 UpdateTownRadius(t);
01565
01566 int i = x * 4;
01567 do {
01568 GrowTown(t);
01569 } while (--i);
01570
01571 t->cache.num_houses -= x;
01572 UpdateTownRadius(t);
01573 UpdateTownMaxPass(t);
01574 UpdateAirportsNoise();
01575 }
01576
01582 static CommandCost TownCanBePlacedHere(TileIndex tile)
01583 {
01584
01585 if (DistanceFromEdge(tile) < 12) {
01586 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP_SUB);
01587 }
01588
01589
01590 if (IsCloseToTown(tile, 20)) {
01591 return_cmd_error(STR_ERROR_TOO_CLOSE_TO_ANOTHER_TOWN);
01592 }
01593
01594
01595 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || !IsTileFlat(tile)) {
01596 return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
01597 }
01598
01599 return CommandCost(EXPENSES_OTHER);
01600 }
01601
01607 static bool IsUniqueTownName(const char *name)
01608 {
01609 const Town *t;
01610
01611 FOR_ALL_TOWNS(t) {
01612 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
01613 }
01614
01615 return true;
01616 }
01617
01630 CommandCost CmdFoundTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01631 {
01632 TownSize size = Extract<TownSize, 0, 2>(p1);
01633 bool city = HasBit(p1, 2);
01634 TownLayout layout = Extract<TownLayout, 3, 3>(p1);
01635 TownNameParams par(_settings_game.game_creation.town_name);
01636 bool random = HasBit(p1, 6);
01637 uint32 townnameparts = p2;
01638
01639 if (size >= TSZ_END) return CMD_ERROR;
01640 if (layout >= NUM_TLS) return CMD_ERROR;
01641
01642
01643 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) {
01644 if (_settings_game.economy.found_town == TF_FORBIDDEN) return CMD_ERROR;
01645 if (size == TSZ_LARGE) return CMD_ERROR;
01646 if (random) return CMD_ERROR;
01647 if (_settings_game.economy.found_town != TF_CUSTOM_LAYOUT && layout != _settings_game.economy.town_layout) {
01648 return CMD_ERROR;
01649 }
01650 } else if (_current_company == OWNER_DEITY && random) {
01651
01652 return CMD_ERROR;
01653 }
01654
01655 if (StrEmpty(text)) {
01656
01657 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01658 } else {
01659
01660 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
01661 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01662 }
01663
01664
01665 if (!Town::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_TOWNS);
01666
01667 if (!random) {
01668 CommandCost ret = TownCanBePlacedHere(tile);
01669 if (ret.Failed()) return ret;
01670 }
01671
01672 static const byte price_mult[][TSZ_RANDOM + 1] = {{ 15, 25, 40, 25 }, { 20, 35, 55, 35 }};
01673
01674 assert_compile(lengthof(price_mult[0]) == 4);
01675
01676 CommandCost cost(EXPENSES_OTHER, _price[PR_BUILD_TOWN]);
01677 byte mult = price_mult[city][size];
01678
01679 cost.MultiplyCost(mult);
01680
01681
01682 if (flags & DC_EXEC) {
01683 if (cost.GetCost() > GetAvailableMoneyForCommand()) {
01684 _additional_cash_required = cost.GetCost();
01685 return CommandCost(EXPENSES_OTHER);
01686 }
01687
01688 Backup<bool> old_generating_world(_generating_world, true, FILE_LINE);
01689 UpdateNearestTownForRoadTiles(true);
01690 Town *t;
01691 if (random) {
01692 t = CreateRandomTown(20, townnameparts, size, city, layout);
01693 if (t == NULL) {
01694 cost = CommandCost(STR_ERROR_NO_SPACE_FOR_TOWN);
01695 } else {
01696 _new_town_id = t->index;
01697 }
01698 } else {
01699 t = new Town(tile);
01700 DoCreateTown(t, tile, townnameparts, size, city, layout, true);
01701 }
01702 UpdateNearestTownForRoadTiles(false);
01703 old_generating_world.Restore();
01704
01705 if (t != NULL && !StrEmpty(text)) {
01706 t->name = strdup(text);
01707 t->UpdateVirtCoord();
01708 }
01709
01710 if (_game_mode != GM_EDITOR) {
01711
01712 assert(!random);
01713 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
01714 SetDParam(0, _current_company);
01715 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
01716
01717 char *cn = strdup(company_name);
01718 SetDParamStr(0, cn);
01719 SetDParam(1, t->index);
01720
01721 AddTileNewsItem(STR_NEWS_NEW_TOWN, NT_INDUSTRY_OPEN, tile, cn);
01722 AI::BroadcastNewEvent(new ScriptEventTownFounded(t->index));
01723 Game::NewEvent(new ScriptEventTownFounded(t->index));
01724 }
01725 }
01726 return cost;
01727 }
01728
01738 static TileIndex AlignTileToGrid(TileIndex tile, TownLayout layout)
01739 {
01740 switch (layout) {
01741 case TL_2X2_GRID: return TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01742 case TL_3X3_GRID: return TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01743 default: return tile;
01744 }
01745 }
01746
01756 static bool IsTileAlignedToGrid(TileIndex tile, TownLayout layout)
01757 {
01758 switch (layout) {
01759 case TL_2X2_GRID: return TileX(tile) % 3 == 0 && TileY(tile) % 3 == 0;
01760 case TL_3X3_GRID: return TileX(tile) % 4 == 0 && TileY(tile) % 4 == 0;
01761 default: return true;
01762 }
01763 }
01764
01768 struct SpotData {
01769 TileIndex tile;
01770 uint max_dist;
01771 TownLayout layout;
01772 };
01773
01790 static bool FindFurthestFromWater(TileIndex tile, void *user_data)
01791 {
01792 SpotData *sp = (SpotData*)user_data;
01793 uint dist = GetClosestWaterDistance(tile, true);
01794
01795 if (IsTileType(tile, MP_CLEAR) &&
01796 IsTileFlat(tile) &&
01797 IsTileAlignedToGrid(tile, sp->layout) &&
01798 dist > sp->max_dist) {
01799 sp->tile = tile;
01800 sp->max_dist = dist;
01801 }
01802
01803 return false;
01804 }
01805
01812 static bool FindNearestEmptyLand(TileIndex tile, void *user_data)
01813 {
01814 return IsTileType(tile, MP_CLEAR);
01815 }
01816
01829 static TileIndex FindNearestGoodCoastalTownSpot(TileIndex tile, TownLayout layout)
01830 {
01831 SpotData sp = { INVALID_TILE, 0, layout };
01832
01833 TileIndex coast = tile;
01834 if (CircularTileSearch(&coast, 40, FindNearestEmptyLand, NULL)) {
01835 CircularTileSearch(&coast, 10, FindFurthestFromWater, &sp);
01836 return sp.tile;
01837 }
01838
01839
01840 return INVALID_TILE;
01841 }
01842
01843 static Town *CreateRandomTown(uint attempts, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01844 {
01845 assert(_game_mode == GM_EDITOR || _generating_world);
01846
01847 if (!Town::CanAllocateItem()) return NULL;
01848
01849 do {
01850
01851 TileIndex tile = AlignTileToGrid(RandomTile(), layout);
01852
01853
01854
01855 if (IsTileType(tile, MP_WATER)) {
01856 tile = FindNearestGoodCoastalTownSpot(tile, layout);
01857 if (tile == INVALID_TILE) continue;
01858 }
01859
01860
01861 if (TownCanBePlacedHere(tile).Failed()) continue;
01862
01863
01864 Town *t = new Town(tile);
01865
01866 DoCreateTown(t, tile, townnameparts, size, city, layout, false);
01867
01868
01869
01870 if (t->cache.population > 0) return t;
01871
01872 Backup<CompanyByte> cur_company(_current_company, OWNER_TOWN, FILE_LINE);
01873 CommandCost rc = DoCommand(t->xy, t->index, 0, DC_EXEC, CMD_DELETE_TOWN);
01874 cur_company.Restore();
01875 assert(rc.Succeeded());
01876
01877
01878
01879
01880
01881 assert(Town::CanAllocateItem());
01882 } while (--attempts != 0);
01883
01884 return NULL;
01885 }
01886
01887 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01888
01896 bool GenerateTowns(TownLayout layout)
01897 {
01898 uint current_number = 0;
01899 uint difficulty = (_game_mode != GM_EDITOR) ? _settings_game.difficulty.number_towns : 0;
01900 uint total = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01901 total = min(TownPool::MAX_SIZE, total);
01902 uint32 townnameparts;
01903 TownNames town_names;
01904
01905 SetGeneratingWorldProgress(GWP_TOWN, total);
01906
01907
01908
01909
01910 do {
01911 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01912 IncreaseGeneratingWorldProgress(GWP_TOWN);
01913
01914 if (!GenerateTownName(&townnameparts, &town_names)) continue;
01915
01916 if (CreateRandomTown(20, townnameparts, TSZ_RANDOM, city, layout) != NULL) current_number++;
01917 } while (--total);
01918
01919 town_names.clear();
01920
01921 if (current_number != 0) return true;
01922
01923
01924
01925 if (GenerateTownName(&townnameparts) &&
01926 CreateRandomTown(10000, townnameparts, TSZ_RANDOM, _settings_game.economy.larger_towns != 0, layout) != NULL) {
01927 return true;
01928 }
01929
01930
01931 if (Town::GetNumItems() == 0 && _game_mode != GM_EDITOR) {
01932 ShowErrorMessage(STR_ERROR_COULD_NOT_CREATE_TOWN, INVALID_STRING_ID, WL_CRITICAL);
01933 }
01934
01935 return false;
01936 }
01937
01938
01945 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01946 {
01947 uint dist = DistanceSquare(tile, t->xy);
01948
01949 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01950
01951 HouseZonesBits smallest = HZB_TOWN_EDGE;
01952 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01953 if (dist < t->cache.squared_town_zone_radius[i]) smallest = i;
01954 }
01955
01956 return smallest;
01957 }
01958
01969 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01970 {
01971 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01972
01973 assert(cc.Succeeded());
01974
01975 IncreaseBuildingCount(t, type);
01976 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01977 if (HouseSpec::Get(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01978
01979 MarkTileDirtyByTile(tile);
01980 }
01981
01982
01993 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01994 {
01995 BuildingFlags size = HouseSpec::Get(type)->building_flags;
01996
01997 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01998 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01999 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
02000 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
02001 }
02002
02003
02012 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
02013 {
02014
02015 Slope slope = GetTileSlope(tile);
02016 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
02017
02018
02019 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02020
02021
02022 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
02023
02024
02025 return DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR).Succeeded();
02026 }
02027
02028
02038 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, int z, bool noslope)
02039 {
02040 if (!CanBuildHouseHere(tile, town, noslope)) return false;
02041
02042
02043 if (GetTileMaxZ(tile) != z) return false;
02044
02045 return true;
02046 }
02047
02048
02058 static bool CheckFree2x2Area(TileIndex tile, TownID town, int z, bool noslope)
02059 {
02060
02061 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02062
02063 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
02064 tile += TileOffsByDiagDir(d);
02065 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
02066 }
02067
02068 return true;
02069 }
02070
02071
02079 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
02080 {
02081
02082 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02083
02084 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02085
02086 switch (t->layout) {
02087 case TL_2X2_GRID:
02088 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
02089 break;
02090
02091 case TL_3X3_GRID:
02092 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
02093 break;
02094
02095 default:
02096 break;
02097 }
02098
02099 return true;
02100 }
02101
02102
02110 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
02111 {
02112
02113 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
02114
02115
02116 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
02117
02118 switch (t->layout) {
02119 case TL_2X2_GRID:
02120 grid_pos.x %= 3;
02121 grid_pos.y %= 3;
02122 if ((grid_pos.x != 2 && grid_pos.x != -1) ||
02123 (grid_pos.y != 2 && grid_pos.y != -1)) return false;
02124 break;
02125
02126 case TL_3X3_GRID:
02127 if ((grid_pos.x & 3) < 2 || (grid_pos.y & 3) < 2) return false;
02128 break;
02129
02130 default:
02131 break;
02132 }
02133
02134 return true;
02135 }
02136
02137
02147 static bool CheckTownBuild2House(TileIndex *tile, Town *t, int maxz, bool noslope, DiagDirection second)
02148 {
02149
02150
02151 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
02152 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
02153
02154 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
02155 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
02156 *tile = tile2;
02157 return true;
02158 }
02159
02160 return false;
02161 }
02162
02163
02172 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, int maxz, bool noslope)
02173 {
02174 TileIndex tile2 = *tile;
02175
02176 for (DiagDirection d = DIAGDIR_SE;; d++) {
02177 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
02178 *tile = tile2;
02179 return true;
02180 }
02181 if (d == DIAGDIR_END) break;
02182 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
02183 }
02184
02185 return false;
02186 }
02187
02188
02195 static bool BuildTownHouse(Town *t, TileIndex tile)
02196 {
02197
02198 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
02199
02200
02201 if (!CanBuildHouseHere(tile, t->index, false)) return false;
02202
02203 Slope slope = GetTileSlope(tile);
02204 int maxz = GetTileMaxZ(tile);
02205
02206
02207
02208 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
02209
02210
02211 int land = _settings_game.game_creation.landscape;
02212 if (land == LT_ARCTIC && maxz > HighestSnowLine()) land = -1;
02213
02214 uint bitmask = (1 << rad) + (1 << (land + 12));
02215
02216
02217
02218
02219 HouseID houses[NUM_HOUSES];
02220 uint num = 0;
02221 uint probs[NUM_HOUSES];
02222 uint probability_max = 0;
02223
02224
02225 for (uint i = 0; i < NUM_HOUSES; i++) {
02226 const HouseSpec *hs = HouseSpec::Get(i);
02227
02228
02229 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled || hs->grf_prop.override != INVALID_HOUSE_ID) continue;
02230
02231
02232 if (hs->class_id != HOUSE_NO_CLASS) {
02233
02234 if (t->cache.building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
02235 } else {
02236
02237 if (t->cache.building_counts.id_count[i] == UINT16_MAX) continue;
02238 }
02239
02240
02241 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
02242 probability_max += cur_prob;
02243 probs[num] = cur_prob;
02244 houses[num++] = (HouseID)i;
02245 }
02246
02247 TileIndex baseTile = tile;
02248
02249 while (probability_max > 0) {
02250
02251
02252
02253
02254
02255 tile = baseTile;
02256
02257 uint r = RandomRange(probability_max);
02258 uint i;
02259 for (i = 0; i < num; i++) {
02260 if (probs[i] > r) break;
02261 r -= probs[i];
02262 }
02263
02264 HouseID house = houses[i];
02265 probability_max -= probs[i];
02266
02267
02268 num--;
02269 houses[i] = houses[num];
02270 probs[i] = probs[num];
02271
02272 const HouseSpec *hs = HouseSpec::Get(house);
02273
02274 if (_loaded_newgrf_features.has_newhouses && !_generating_world &&
02275 _game_mode != GM_EDITOR && (hs->extra_flags & BUILDING_IS_HISTORICAL) != 0) {
02276 continue;
02277 }
02278
02279 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02280
02281
02282 uint oneof = 0;
02283
02284 if (hs->building_flags & BUILDING_IS_CHURCH) {
02285 SetBit(oneof, TOWN_HAS_CHURCH);
02286 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02287 SetBit(oneof, TOWN_HAS_STADIUM);
02288 }
02289
02290 if (t->flags & oneof) continue;
02291
02292
02293 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02294 if (noslope && slope != SLOPE_FLAT) continue;
02295
02296 if (hs->building_flags & TILE_SIZE_2x2) {
02297 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02298 } else if (hs->building_flags & TILE_SIZE_2x1) {
02299 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02300 } else if (hs->building_flags & TILE_SIZE_1x2) {
02301 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02302 } else {
02303
02304 }
02305
02306 byte random_bits = Random();
02307
02308 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02309 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile, true, random_bits);
02310 if (callback_res != CALLBACK_FAILED && !Convert8bitBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_ALLOW_CONSTRUCTION, callback_res)) continue;
02311 }
02312
02313
02314 t->cache.num_houses++;
02315
02316
02317 t->flags |= oneof;
02318
02319 byte construction_counter = 0;
02320 byte construction_stage = 0;
02321
02322 if (_generating_world || _game_mode == GM_EDITOR) {
02323 uint32 r = Random();
02324
02325 construction_stage = TOWN_HOUSE_COMPLETED;
02326 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02327
02328 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02329 ChangePopulation(t, hs->population);
02330 } else {
02331 construction_counter = GB(r, 2, 2);
02332 }
02333 }
02334
02335 MakeTownHouse(tile, t, construction_counter, construction_stage, house, random_bits);
02336 UpdateTownRadius(t);
02337 UpdateTownCargoes(t, tile);
02338
02339 return true;
02340 }
02341
02342 return false;
02343 }
02344
02351 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02352 {
02353 assert(IsTileType(tile, MP_HOUSE));
02354 DecreaseBuildingCount(t, house);
02355 DoClearSquare(tile);
02356 DeleteAnimatedTile(tile);
02357
02358 DeleteNewGRFInspectWindow(GSF_HOUSES, tile);
02359 }
02360
02368 TileIndexDiff GetHouseNorthPart(HouseID &house)
02369 {
02370 if (house >= 3) {
02371 if (HouseSpec::Get(house - 1)->building_flags & TILE_SIZE_2x1) {
02372 house--;
02373 return TileDiffXY(-1, 0);
02374 } else if (HouseSpec::Get(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02375 house--;
02376 return TileDiffXY(0, -1);
02377 } else if (HouseSpec::Get(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02378 house -= 2;
02379 return TileDiffXY(-1, 0);
02380 } else if (HouseSpec::Get(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02381 house -= 3;
02382 return TileDiffXY(-1, -1);
02383 }
02384 }
02385 return 0;
02386 }
02387
02388 void ClearTownHouse(Town *t, TileIndex tile)
02389 {
02390 assert(IsTileType(tile, MP_HOUSE));
02391
02392 HouseID house = GetHouseType(tile);
02393
02394
02395 tile += GetHouseNorthPart(house);
02396
02397 const HouseSpec *hs = HouseSpec::Get(house);
02398
02399
02400 if (IsHouseCompleted(tile)) {
02401 ChangePopulation(t, -hs->population);
02402 }
02403
02404 t->cache.num_houses--;
02405
02406
02407 if (hs->building_flags & BUILDING_IS_CHURCH) {
02408 ClrBit(t->flags, TOWN_HAS_CHURCH);
02409 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02410 ClrBit(t->flags, TOWN_HAS_STADIUM);
02411 }
02412
02413
02414 uint eflags = hs->building_flags;
02415 DoClearTownHouseHelper(tile, t, house);
02416 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02417 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02418 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02419
02420 UpdateTownRadius(t);
02421
02422
02423 UpdateTownCargoes(t, tile);
02424 }
02425
02435 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02436 {
02437 Town *t = Town::GetIfValid(p1);
02438 if (t == NULL) return CMD_ERROR;
02439
02440 bool reset = StrEmpty(text);
02441
02442 if (!reset) {
02443 if (Utf8StringLength(text) >= MAX_LENGTH_TOWN_NAME_CHARS) return CMD_ERROR;
02444 if (!IsUniqueTownName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
02445 }
02446
02447 if (flags & DC_EXEC) {
02448 free(t->name);
02449 t->name = reset ? NULL : strdup(text);
02450
02451 t->UpdateVirtCoord();
02452 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02453 UpdateAllStationVirtCoords();
02454 }
02455 return CommandCost();
02456 }
02457
02463 const CargoSpec *FindFirstCargoWithTownEffect(TownEffect effect)
02464 {
02465 const CargoSpec *cs;
02466 FOR_ALL_CARGOSPECS(cs) {
02467 if (cs->town_effect == effect) return cs;
02468 }
02469 return NULL;
02470 }
02471
02472 static void UpdateTownGrowRate(Town *t);
02473
02485 CommandCost CmdTownCargoGoal(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02486 {
02487 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02488
02489 TownEffect te = (TownEffect)GB(p1, 16, 8);
02490 if (te < TE_BEGIN || te >= TE_END) return CMD_ERROR;
02491
02492 uint16 index = GB(p1, 0, 16);
02493 Town *t = Town::GetIfValid(index);
02494 if (t == NULL) return CMD_ERROR;
02495
02496
02497 const CargoSpec *cargo = FindFirstCargoWithTownEffect(te);
02498 if (cargo == NULL) return CMD_ERROR;
02499
02500 if (flags & DC_EXEC) {
02501 t->goal[te] = p2;
02502 UpdateTownGrowRate(t);
02503 InvalidateWindowData(WC_TOWN_VIEW, index);
02504 }
02505
02506 return CommandCost();
02507 }
02508
02518 CommandCost CmdTownSetText(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02519 {
02520 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02521 Town *t = Town::GetIfValid(p1);
02522 if (t == NULL) return CMD_ERROR;
02523
02524 if (flags & DC_EXEC) {
02525 free(t->text);
02526 t->text = StrEmpty(text) ? NULL : strdup(text);
02527 InvalidateWindowData(WC_TOWN_VIEW, p1);
02528 }
02529
02530 return CommandCost();
02531 }
02532
02542 CommandCost CmdTownGrowthRate(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02543 {
02544 if (_current_company != OWNER_DEITY) return CMD_ERROR;
02545 if ((p2 & TOWN_GROW_RATE_CUSTOM) != 0 && p2 != TOWN_GROW_RATE_CUSTOM_NONE) return CMD_ERROR;
02546 if (GB(p2, 16, 16) != 0) return CMD_ERROR;
02547
02548 Town *t = Town::GetIfValid(p1);
02549 if (t == NULL) return CMD_ERROR;
02550
02551 if (flags & DC_EXEC) {
02552 if (p2 == 0) {
02553
02554 t->growth_rate = 0;
02555 } else {
02556 uint old_rate = t->growth_rate & ~TOWN_GROW_RATE_CUSTOM;
02557 if (t->grow_counter >= old_rate) {
02558
02559 t->grow_counter = p2;
02560 } else {
02561
02562 t->grow_counter = t->grow_counter * p2 / old_rate;
02563 }
02564 t->growth_rate = p2 | TOWN_GROW_RATE_CUSTOM;
02565 }
02566 UpdateTownGrowRate(t);
02567 InvalidateWindowData(WC_TOWN_VIEW, p1);
02568 }
02569
02570 return CommandCost();
02571 }
02572
02582 CommandCost CmdExpandTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02583 {
02584 if (_game_mode != GM_EDITOR && _current_company != OWNER_DEITY) return CMD_ERROR;
02585 Town *t = Town::GetIfValid(p1);
02586 if (t == NULL) return CMD_ERROR;
02587
02588 if (flags & DC_EXEC) {
02589
02590 if (p2 == 0) {
02591 uint amount = RandomRange(ClampToU16(t->cache.num_houses / 10)) + 3;
02592 t->cache.num_houses += amount;
02593 UpdateTownRadius(t);
02594
02595 uint n = amount * 10;
02596 do GrowTown(t); while (--n);
02597
02598 t->cache.num_houses -= amount;
02599 } else {
02600 for (; p2 > 0; p2--) {
02601
02602 for (uint i = 0; i < 25; i++) if (GrowTown(t)) break;
02603 }
02604 }
02605 UpdateTownRadius(t);
02606
02607 UpdateTownMaxPass(t);
02608 }
02609
02610 return CommandCost();
02611 }
02612
02622 CommandCost CmdDeleteTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02623 {
02624 if (_game_mode != GM_EDITOR && !_generating_world) return CMD_ERROR;
02625 Town *t = Town::GetIfValid(p1);
02626 if (t == NULL) return CMD_ERROR;
02627
02628
02629 const Station *st;
02630 FOR_ALL_STATIONS(st) {
02631 if (st->town == t) {
02632
02633 if (!(st->facilities & FACIL_AIRPORT) || st->airport.type != AT_OILRIG) return CMD_ERROR;
02634
02635 CommandCost ret = DoCommand(st->airport.tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02636 if (ret.Failed()) return ret;
02637 }
02638 }
02639
02640
02641 const Depot *d;
02642 FOR_ALL_DEPOTS(d) {
02643 if (d->town == t) return CMD_ERROR;
02644 }
02645
02646
02647 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
02648 bool try_clear = false;
02649 switch (GetTileType(tile)) {
02650 case MP_ROAD:
02651 try_clear = HasTownOwnedRoad(tile) && GetTownIndex(tile) == t->index;
02652 break;
02653
02654 case MP_TUNNELBRIDGE:
02655 try_clear = IsTileOwner(tile, OWNER_TOWN) && ClosestTownFromTile(tile, UINT_MAX) == t;
02656 break;
02657
02658 case MP_HOUSE:
02659 try_clear = GetTownIndex(tile) == t->index;
02660 break;
02661
02662 case MP_INDUSTRY:
02663 try_clear = Industry::GetByTile(tile)->town == t;
02664 break;
02665
02666 case MP_OBJECT:
02667 if (Town::GetNumItems() == 1) {
02668
02669 try_clear = true;
02670 } else {
02671 Object *o = Object::GetByTile(tile);
02672 if (o->town == t) {
02673 if (o->type == OBJECT_STATUE) {
02674
02675 try_clear = true;
02676 } else {
02677
02678 if (flags & DC_EXEC) o->town = NULL;
02679 }
02680 }
02681 }
02682 break;
02683
02684 default:
02685 break;
02686 }
02687 if (try_clear) {
02688 CommandCost ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02689 if (ret.Failed()) return ret;
02690 }
02691 }
02692
02693
02694 if (flags & DC_EXEC) delete t;
02695
02696 return CommandCost();
02697 }
02698
02703 const byte _town_action_costs[TACT_COUNT] = {
02704 2, 4, 9, 35, 48, 53, 117, 175
02705 };
02706
02707 static CommandCost TownActionAdvertiseSmall(Town *t, DoCommandFlag flags)
02708 {
02709 if (flags & DC_EXEC) {
02710 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02711 }
02712 return CommandCost();
02713 }
02714
02715 static CommandCost TownActionAdvertiseMedium(Town *t, DoCommandFlag flags)
02716 {
02717 if (flags & DC_EXEC) {
02718 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02719 }
02720 return CommandCost();
02721 }
02722
02723 static CommandCost TownActionAdvertiseLarge(Town *t, DoCommandFlag flags)
02724 {
02725 if (flags & DC_EXEC) {
02726 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02727 }
02728 return CommandCost();
02729 }
02730
02731 static CommandCost TownActionRoadRebuild(Town *t, DoCommandFlag flags)
02732 {
02733
02734 if (!_settings_game.economy.fund_roads) return CMD_ERROR;
02735
02736 if (flags & DC_EXEC) {
02737 t->road_build_months = 6;
02738
02739 char company_name[MAX_LENGTH_COMPANY_NAME_CHARS * MAX_CHAR_LENGTH];
02740 SetDParam(0, _current_company);
02741 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02742
02743 char *cn = strdup(company_name);
02744 SetDParam(0, t->index);
02745 SetDParamStr(1, cn);
02746
02747 AddNewsItem(STR_NEWS_ROAD_REBUILDING, NT_GENERAL, NF_NORMAL, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cn);
02748 AI::BroadcastNewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02749 Game::NewEvent(new ScriptEventRoadReconstruction((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02750 }
02751 return CommandCost();
02752 }
02753
02759 static bool TryClearTile(TileIndex tile)
02760 {
02761 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02762 CommandCost r = DoCommand(tile, 0, 0, DC_NONE, CMD_LANDSCAPE_CLEAR);
02763 cur_company.Restore();
02764 return r.Succeeded();
02765 }
02766
02768 struct StatueBuildSearchData {
02769 TileIndex best_position;
02770 int tile_count;
02771
02772 StatueBuildSearchData(TileIndex best_pos, int count) : best_position(best_pos), tile_count(count) { }
02773 };
02774
02781 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02782 {
02783 static const int STATUE_NUMBER_INNER_TILES = 25;
02784
02785 StatueBuildSearchData *statue_data = (StatueBuildSearchData *)user_data;
02786 statue_data->tile_count++;
02787
02788
02789 if (IsSteepSlope(GetTileSlope(tile))) return false;
02790
02791 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02792
02793
02794 if ((IsTileType(tile, MP_CLEAR) || IsTileType(tile, MP_TREES)) && TryClearTile(tile)) {
02795 statue_data->best_position = tile;
02796 return true;
02797 }
02798
02799 bool house = IsTileType(tile, MP_HOUSE);
02800
02801
02802 if (statue_data->tile_count <= STATUE_NUMBER_INNER_TILES) {
02803
02804 if (house && statue_data->best_position == INVALID_TILE && TryClearTile(tile)) {
02805 statue_data->best_position = tile;
02806 }
02807
02808
02809 return statue_data->tile_count == STATUE_NUMBER_INNER_TILES && statue_data->best_position != INVALID_TILE;
02810 }
02811
02812
02813 statue_data->best_position = tile;
02814 return house && TryClearTile(tile);
02815 }
02816
02824 static CommandCost TownActionBuildStatue(Town *t, DoCommandFlag flags)
02825 {
02826 if (!Object::CanAllocateItem()) return_cmd_error(STR_ERROR_TOO_MANY_OBJECTS);
02827
02828 TileIndex tile = t->xy;
02829 StatueBuildSearchData statue_data(INVALID_TILE, 0);
02830 if (!CircularTileSearch(&tile, 9, SearchTileForStatue, &statue_data)) return_cmd_error(STR_ERROR_STATUE_NO_SUITABLE_PLACE);
02831
02832 if (flags & DC_EXEC) {
02833 Backup<CompanyByte> cur_company(_current_company, OWNER_NONE, FILE_LINE);
02834 DoCommand(statue_data.best_position, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02835 cur_company.Restore();
02836 BuildObject(OBJECT_STATUE, statue_data.best_position, _current_company, t);
02837 SetBit(t->statues, _current_company);
02838 MarkTileDirtyByTile(statue_data.best_position);
02839 }
02840 return CommandCost();
02841 }
02842
02843 static CommandCost TownActionFundBuildings(Town *t, DoCommandFlag flags)
02844 {
02845
02846 if (!_settings_game.economy.fund_buildings) return CMD_ERROR;
02847
02848 if (flags & DC_EXEC) {
02849
02850 t->grow_counter = 1;
02851
02852 t->fund_buildings_months = 3;
02853
02854
02855 UpdateTownGrowRate(t);
02856
02857 SetWindowDirty(WC_TOWN_VIEW, t->index);
02858 }
02859 return CommandCost();
02860 }
02861
02862 static CommandCost TownActionBuyRights(Town *t, DoCommandFlag flags)
02863 {
02864
02865 if (!_settings_game.economy.exclusive_rights) return CMD_ERROR;
02866
02867 if (flags & DC_EXEC) {
02868 t->exclusive_counter = 12;
02869 t->exclusivity = _current_company;
02870
02871 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02872
02873 SetWindowClassesDirty(WC_STATION_VIEW);
02874
02875
02876 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
02877 cni->FillData(Company::Get(_current_company));
02878 SetDParam(0, STR_NEWS_EXCLUSIVE_RIGHTS_TITLE);
02879 SetDParam(1, STR_NEWS_EXCLUSIVE_RIGHTS_DESCRIPTION);
02880 SetDParam(2, t->index);
02881 SetDParamStr(3, cni->company_name);
02882 AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NT_GENERAL, NF_COMPANY, NR_TOWN, t->index, NR_NONE, UINT32_MAX, cni);
02883 AI::BroadcastNewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02884 Game::NewEvent(new ScriptEventExclusiveTransportRights((ScriptCompany::CompanyID)(Owner)_current_company, t->index));
02885 }
02886 return CommandCost();
02887 }
02888
02889 static CommandCost TownActionBribe(Town *t, DoCommandFlag flags)
02890 {
02891 if (flags & DC_EXEC) {
02892 if (Chance16(1, 14)) {
02893
02894 t->unwanted[_current_company] = 6;
02895
02896
02897 Station *st;
02898 FOR_ALL_STATIONS(st) {
02899 if (st->town == t && st->owner == _current_company) {
02900 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02901 }
02902 }
02903
02904
02905
02906 if (IsLocalCompany()) ShowErrorMessage(STR_ERROR_BRIBE_FAILED, INVALID_STRING_ID, WL_INFO);
02907
02908
02909
02910
02911
02912 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02913 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02914 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
02915 }
02916 } else {
02917 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02918 }
02919 }
02920 return CommandCost();
02921 }
02922
02923 typedef CommandCost TownActionProc(Town *t, DoCommandFlag flags);
02924 static TownActionProc * const _town_action_proc[] = {
02925 TownActionAdvertiseSmall,
02926 TownActionAdvertiseMedium,
02927 TownActionAdvertiseLarge,
02928 TownActionRoadRebuild,
02929 TownActionBuildStatue,
02930 TownActionFundBuildings,
02931 TownActionBuyRights,
02932 TownActionBribe
02933 };
02934
02942 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02943 {
02944 int num = 0;
02945 TownActions buttons = TACT_NONE;
02946
02947
02948 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02949
02950
02951 Money avail = Company::Get(cid)->money + _price[PR_STATION_VALUE] * 200;
02952
02953
02954
02955 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02956 const TownActions cur = (TownActions)(1 << i);
02957
02958
02959 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM)) continue;
02960
02961
02962 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights) continue;
02963
02964
02965 if (cur == TACT_FUND_BUILDINGS && !_settings_game.economy.fund_buildings) continue;
02966
02967
02968 if (cur == TACT_ROAD_REBUILD && !_settings_game.economy.fund_roads) continue;
02969
02970
02971 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid)) continue;
02972
02973 if (avail >= _town_action_costs[i] * _price[PR_TOWN_ACTION] >> 8) {
02974 buttons |= cur;
02975 num++;
02976 }
02977 }
02978 }
02979
02980 if (nump != NULL) *nump = num;
02981 return buttons;
02982 }
02983
02995 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02996 {
02997 Town *t = Town::GetIfValid(p1);
02998 if (t == NULL || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02999
03000 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
03001
03002 CommandCost cost(EXPENSES_OTHER, _price[PR_TOWN_ACTION] * _town_action_costs[p2] >> 8);
03003
03004 CommandCost ret = _town_action_proc[p2](t, flags);
03005 if (ret.Failed()) return ret;
03006
03007 if (flags & DC_EXEC) {
03008 SetWindowDirty(WC_TOWN_AUTHORITY, p1);
03009 }
03010
03011 return cost;
03012 }
03013
03014 static void UpdateTownRating(Town *t)
03015 {
03016
03017 const Company *c;
03018 FOR_ALL_COMPANIES(c) {
03019 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
03020 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
03021 }
03022 }
03023
03024 const Station *st;
03025 FOR_ALL_STATIONS(st) {
03026 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
03027 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
03028 if (Company::IsValidID(st->owner)) {
03029 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
03030 t->ratings[st->owner] = min(new_rating, INT16_MAX);
03031 }
03032 } else {
03033 if (Company::IsValidID(st->owner)) {
03034 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
03035 t->ratings[st->owner] = max(new_rating, INT16_MIN);
03036 }
03037 }
03038 }
03039 }
03040
03041
03042 for (uint i = 0; i < MAX_COMPANIES; i++) {
03043 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
03044 }
03045
03046 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03047 }
03048
03049 static void UpdateTownGrowRate(Town *t)
03050 {
03051 ClrBit(t->flags, TOWN_IS_GROWING);
03052 SetWindowDirty(WC_TOWN_VIEW, t->index);
03053
03054 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
03055
03056 if (t->fund_buildings_months == 0) {
03057
03058 for (int i = TE_BEGIN; i < TE_END; i++) {
03059 switch (t->goal[i]) {
03060 case TOWN_GROWTH_WINTER:
03061 if (TileHeight(t->xy) >= GetSnowLine() && t->received[i].old_act == 0 && t->cache.population > 90) return;
03062 break;
03063 case TOWN_GROWTH_DESERT:
03064 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && t->received[i].old_act == 0 && t->cache.population > 60) return;
03065 break;
03066 default:
03067 if (t->goal[i] > t->received[i].old_act) return;
03068 break;
03069 }
03070 }
03071 }
03072
03073 if ((t->growth_rate & TOWN_GROW_RATE_CUSTOM) != 0) {
03074 if (t->growth_rate != TOWN_GROW_RATE_CUSTOM_NONE) SetBit(t->flags, TOWN_IS_GROWING);
03075 SetWindowDirty(WC_TOWN_VIEW, t->index);
03076 return;
03077 }
03078
03083 static const uint16 _grow_count_values[2][6] = {
03084 { 120, 120, 120, 100, 80, 60 },
03085 { 320, 420, 300, 220, 160, 100 }
03086 };
03087
03088 int n = 0;
03089
03090 const Station *st;
03091 FOR_ALL_STATIONS(st) {
03092 if (DistanceSquare(st->xy, t->xy) <= t->cache.squared_town_zone_radius[0]) {
03093 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
03094 n++;
03095 }
03096 }
03097 }
03098
03099 uint16 m;
03100
03101 if (t->fund_buildings_months != 0) {
03102 m = _grow_count_values[0][min(n, 5)];
03103 } else {
03104 m = _grow_count_values[1][min(n, 5)];
03105 if (n == 0 && !Chance16(1, 12)) return;
03106 }
03107
03108
03109
03110 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
03111
03112 m >>= growth_multiplier;
03113 if (t->larger_town) m /= 2;
03114
03115 t->growth_rate = m / (t->cache.num_houses / 50 + 1);
03116 if (m <= t->grow_counter) {
03117 t->grow_counter = m;
03118 }
03119
03120 SetBit(t->flags, TOWN_IS_GROWING);
03121 SetWindowDirty(WC_TOWN_VIEW, t->index);
03122 }
03123
03124 static void UpdateTownAmounts(Town *t)
03125 {
03126 for (CargoID i = 0; i < NUM_CARGO; i++) t->supplied[i].NewMonth();
03127 for (int i = TE_BEGIN; i < TE_END; i++) t->received[i].NewMonth();
03128 if (t->fund_buildings_months != 0) t->fund_buildings_months--;
03129
03130 SetWindowDirty(WC_TOWN_VIEW, t->index);
03131 }
03132
03133 static void UpdateTownUnwanted(Town *t)
03134 {
03135 const Company *c;
03136
03137 FOR_ALL_COMPANIES(c) {
03138 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
03139 }
03140 }
03141
03148 CommandCost CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
03149 {
03150 if (!Company::IsValidID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return CommandCost();
03151
03152 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
03153 if (t == NULL) return CommandCost();
03154
03155 if (t->ratings[_current_company] > RATING_VERYPOOR) return CommandCost();
03156
03157 SetDParam(0, t->index);
03158 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03159 }
03160
03169 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
03170 {
03171 Town *t;
03172 uint best = threshold;
03173 Town *best_town = NULL;
03174
03175 FOR_ALL_TOWNS(t) {
03176 uint dist = DistanceManhattan(tile, t->xy);
03177 if (dist < best) {
03178 best = dist;
03179 best_town = t;
03180 }
03181 }
03182
03183 return best_town;
03184 }
03185
03194 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
03195 {
03196 switch (GetTileType(tile)) {
03197 case MP_ROAD:
03198 if (IsRoadDepot(tile)) return CalcClosestTownFromTile(tile, threshold);
03199
03200 if (!HasTownOwnedRoad(tile)) {
03201 TownID tid = GetTownIndex(tile);
03202
03203 if (tid == (TownID)INVALID_TOWN) {
03204
03205 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
03206 assert(Town::GetNumItems() == 0);
03207 return NULL;
03208 }
03209
03210 assert(Town::IsValidID(tid));
03211 Town *town = Town::Get(tid);
03212
03213 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
03214
03215 return town;
03216 }
03217
03218
03219 case MP_HOUSE:
03220 return Town::GetByTile(tile);
03221
03222 default:
03223 return CalcClosestTownFromTile(tile, threshold);
03224 }
03225 }
03226
03227 static bool _town_rating_test = false;
03228 static SmallMap<const Town *, int, 4> _town_test_ratings;
03229
03235 void SetTownRatingTestMode(bool mode)
03236 {
03237 static int ref_count = 0;
03238 if (mode) {
03239 if (ref_count == 0) {
03240 _town_test_ratings.Clear();
03241 }
03242 ref_count++;
03243 } else {
03244 assert(ref_count > 0);
03245 ref_count--;
03246 }
03247 _town_rating_test = !(ref_count == 0);
03248 }
03249
03255 static int GetRating(const Town *t)
03256 {
03257 if (_town_rating_test) {
03258 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
03259 if (it != _town_test_ratings.End()) {
03260 return it->second;
03261 }
03262 }
03263 return t->ratings[_current_company];
03264 }
03265
03273 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
03274 {
03275
03276 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
03277 !Company::IsValidID(_current_company) ||
03278 (_cheats.magic_bulldozer.value && add < 0)) {
03279 return;
03280 }
03281
03282 int rating = GetRating(t);
03283 if (add < 0) {
03284 if (rating > max) {
03285 rating += add;
03286 if (rating < max) rating = max;
03287 }
03288 } else {
03289 if (rating < max) {
03290 rating += add;
03291 if (rating > max) rating = max;
03292 }
03293 }
03294 if (_town_rating_test) {
03295 _town_test_ratings[t] = rating;
03296 } else {
03297 SetBit(t->have_ratings, _current_company);
03298 t->ratings[_current_company] = rating;
03299 SetWindowDirty(WC_TOWN_AUTHORITY, t->index);
03300 }
03301 }
03302
03310 CommandCost CheckforTownRating(DoCommandFlag flags, Town *t, TownRatingCheckType type)
03311 {
03312
03313 if (t == NULL || !Company::IsValidID(_current_company) ||
03314 _cheats.magic_bulldozer.value || (flags & DC_NO_TEST_TOWN_RATING)) {
03315 return CommandCost();
03316 }
03317
03318
03319 static const int needed_rating[][TOWN_RATING_CHECK_TYPE_COUNT] = {
03320
03321 { RATING_ROAD_NEEDED_PERMISSIVE, RATING_TUNNEL_BRIDGE_NEEDED_PERMISSIVE},
03322 { RATING_ROAD_NEEDED_NEUTRAL, RATING_TUNNEL_BRIDGE_NEEDED_NEUTRAL},
03323 { RATING_ROAD_NEEDED_HOSTILE, RATING_TUNNEL_BRIDGE_NEEDED_HOSTILE},
03324 };
03325
03326
03327
03328
03329
03330 int needed = needed_rating[_settings_game.difficulty.town_council_tolerance][type];
03331
03332 if (GetRating(t) < needed) {
03333 SetDParam(0, t->index);
03334 return_cmd_error(STR_ERROR_LOCAL_AUTHORITY_REFUSES_TO_ALLOW_THIS);
03335 }
03336
03337 return CommandCost();
03338 }
03339
03340 void TownsMonthlyLoop()
03341 {
03342 Town *t;
03343
03344 FOR_ALL_TOWNS(t) {
03345 if (t->road_build_months != 0) t->road_build_months--;
03346
03347 if (t->exclusive_counter != 0) {
03348 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
03349 }
03350
03351 UpdateTownAmounts(t);
03352 UpdateTownRating(t);
03353 UpdateTownGrowRate(t);
03354 UpdateTownUnwanted(t);
03355 UpdateTownCargoes(t);
03356 }
03357
03358 UpdateTownCargoBitmap();
03359 }
03360
03361 void TownsYearlyLoop()
03362 {
03363
03364 for (TileIndex t = 0; t < MapSize(); t++) {
03365 if (!IsTileType(t, MP_HOUSE)) continue;
03366 IncrementHouseAge(t);
03367 }
03368 }
03369
03370 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
03371 {
03372 if (AutoslopeEnabled()) {
03373 HouseID house = GetHouseType(tile);
03374 GetHouseNorthPart(house);
03375 const HouseSpec *hs = HouseSpec::Get(house);
03376
03377
03378 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
03379 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) {
03380 bool allow_terraform = true;
03381
03382
03383 house = GetHouseType(tile);
03384 hs = HouseSpec::Get(house);
03385 if (HasBit(hs->callback_mask, CBM_HOUSE_AUTOSLOPE)) {
03386
03387 uint16 res = GetHouseCallback(CBID_HOUSE_AUTOSLOPE, 0, 0, house, Town::GetByTile(tile), tile);
03388 if (res != CALLBACK_FAILED && ConvertBooleanCallback(hs->grf_prop.grffile, CBID_HOUSE_AUTOSLOPE, res)) allow_terraform = false;
03389 }
03390
03391 if (allow_terraform) return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
03392 }
03393 }
03394
03395 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
03396 }
03397
03399 extern const TileTypeProcs _tile_type_town_procs = {
03400 DrawTile_Town,
03401 GetSlopePixelZ_Town,
03402 ClearTile_Town,
03403 AddAcceptedCargo_Town,
03404 GetTileDesc_Town,
03405 GetTileTrackStatus_Town,
03406 NULL,
03407 AnimateTile_Town,
03408 TileLoop_Town,
03409 ChangeTileOwner_Town,
03410 AddProducedCargo_Town,
03411 NULL,
03412 GetFoundation_Town,
03413 TerraformTile_Town,
03414 };
03415
03416
03417 HouseSpec _house_specs[NUM_HOUSES];
03418
03419 void ResetHouses()
03420 {
03421 memset(&_house_specs, 0, sizeof(_house_specs));
03422 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
03423
03424
03425 _house_mngr.ResetOverride();
03426 }