00001
00002
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "road_type.h"
00008 #include "road_internal.h"
00009 #include "road_cmd.h"
00010 #include "landscape.h"
00011 #include "town_map.h"
00012 #include "viewport_func.h"
00013 #include "command_func.h"
00014 #include "industry.h"
00015 #include "station_base.h"
00016 #include "company_base.h"
00017 #include "news_func.h"
00018 #include "gui.h"
00019 #include "unmovable_map.h"
00020 #include "water_map.h"
00021 #include "variables.h"
00022 #include "slope_func.h"
00023 #include "genworld.h"
00024 #include "newgrf.h"
00025 #include "newgrf_house.h"
00026 #include "newgrf_commons.h"
00027 #include "newgrf_townname.h"
00028 #include "newgrf_text.h"
00029 #include "autoslope.h"
00030 #include "waypoint.h"
00031 #include "transparency.h"
00032 #include "tunnelbridge_map.h"
00033 #include "strings_func.h"
00034 #include "window_func.h"
00035 #include "string_func.h"
00036 #include "newgrf_cargo.h"
00037 #include "oldpool_func.h"
00038 #include "economy_func.h"
00039 #include "station_func.h"
00040 #include "cheat_type.h"
00041 #include "functions.h"
00042 #include "animated_tile_func.h"
00043 #include "date_func.h"
00044 #include "core/smallmap_type.hpp"
00045
00046 #include "table/strings.h"
00047 #include "table/town_land.h"
00048
00049 uint _total_towns;
00050 HouseSpec _house_specs[HOUSE_MAX];
00051
00052 Town *_cleared_town;
00053 int _cleared_town_rating;
00054
00055 uint32 _cur_town_ctr;
00056 uint32 _cur_town_iter;
00057
00058
00059 DEFINE_OLD_POOL_GENERIC(Town, Town)
00060
00061 Town::Town(TileIndex tile)
00062 {
00063 if (tile != INVALID_TILE) _total_towns++;
00064 this->xy = tile;
00065 }
00066
00067 Town::~Town()
00068 {
00069 free(this->name);
00070
00071 if (CleaningPool()) return;
00072
00073 Industry *i;
00074
00075
00076
00077 DeleteWindowById(WC_TOWN_VIEW, this->index);
00078 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
00079 _total_towns--;
00080
00081
00082 FOR_ALL_INDUSTRIES(i) if (i->town == this) delete i;
00083
00084
00085 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
00086 switch (GetTileType(tile)) {
00087 case MP_HOUSE:
00088 if (GetTownByTile(tile) == this) DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00089 break;
00090
00091 case MP_ROAD:
00092
00093 if (HasTownOwnedRoad(tile) && GetTownIndex(tile) == this->index) {
00094 DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00095 }
00096 break;
00097
00098 case MP_TUNNELBRIDGE:
00099 if (IsTileOwner(tile, OWNER_TOWN) &&
00100 ClosestTownFromTile(tile, UINT_MAX) == this)
00101 DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00102 break;
00103
00104 default:
00105 break;
00106 }
00107 }
00108
00109 DeleteSubsidyWithTown(this->index);
00110
00111 MarkWholeScreenDirty();
00112
00113 this->xy = INVALID_TILE;
00114
00115 UpdateNearestTownForRoadTiles(false);
00116 }
00117
00121 void Town::InitializeLayout(TownLayout layout)
00122 {
00123 if (layout != TL_RANDOM) {
00124 this->layout = layout;
00125 return;
00126 }
00127
00128 this->layout = TileHash(TileX(this->xy), TileY(this->xy)) % (NUM_TLS - 1);
00129 }
00130
00131 Money HouseSpec::GetRemovalCost() const
00132 {
00133 return (_price.remove_house * this->removal_cost) >> 8;
00134 }
00135
00136
00137 static int _grow_town_result;
00138
00139
00140 enum TownGrowthResult {
00141 GROWTH_SUCCEED = -1,
00142 GROWTH_SEARCH_STOPPED = 0
00143
00144 };
00145
00146 static bool BuildTownHouse(Town *t, TileIndex tile);
00147
00148 static void TownDrawHouseLift(const TileInfo *ti)
00149 {
00150 AddChildSpriteScreen(SPR_LIFT, PAL_NONE, 14, 60 - GetLiftPosition(ti->tile));
00151 }
00152
00153 typedef void TownDrawTileProc(const TileInfo *ti);
00154 static TownDrawTileProc * const _town_draw_tile_procs[1] = {
00155 TownDrawHouseLift
00156 };
00157
00163 static inline DiagDirection RandomDiagDir()
00164 {
00165 return (DiagDirection)(3 & Random());
00166 }
00167
00173 static void DrawTile_Town(TileInfo *ti)
00174 {
00175 HouseID house_id = GetHouseType(ti->tile);
00176
00177 if (house_id >= NEW_HOUSE_OFFSET) {
00178
00179
00180
00181 if (GetHouseSpecs(house_id)->spritegroup != NULL) {
00182 DrawNewHouseTile(ti, house_id);
00183 return;
00184 } else {
00185 house_id = GetHouseSpecs(house_id)->substitute_id;
00186 }
00187 }
00188
00189
00190 const DrawBuildingsTileStruct *dcts = &_town_draw_tile_data[house_id << 4 | TileHash2Bit(ti->x, ti->y) << 2 | GetHouseBuildingStage(ti->tile)];
00191
00192 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00193
00194 DrawGroundSprite(dcts->ground.sprite, dcts->ground.pal);
00195
00196
00197 if (IsInvisibilitySet(TO_HOUSES)) return;
00198
00199
00200 SpriteID image = dcts->building.sprite;
00201 if (image != 0) {
00202 AddSortableSpriteToDraw(image, dcts->building.pal,
00203 ti->x + dcts->subtile_x,
00204 ti->y + dcts->subtile_y,
00205 dcts->width,
00206 dcts->height,
00207 dcts->dz,
00208 ti->z,
00209 IsTransparencySet(TO_HOUSES)
00210 );
00211
00212 if (IsTransparencySet(TO_HOUSES)) return;
00213 }
00214
00215 {
00216 int proc = dcts->draw_proc - 1;
00217
00218 if (proc >= 0) _town_draw_tile_procs[proc](ti);
00219 }
00220 }
00221
00222 static uint GetSlopeZ_Town(TileIndex tile, uint x, uint y)
00223 {
00224 return GetTileMaxZ(tile);
00225 }
00226
00228 static Foundation GetFoundation_Town(TileIndex tile, Slope tileh)
00229 {
00230 return FlatteningFoundation(tileh);
00231 }
00232
00239 static void AnimateTile_Town(TileIndex tile)
00240 {
00241 if (GetHouseType(tile) >= NEW_HOUSE_OFFSET) {
00242 AnimateNewHouseTile(tile);
00243 return;
00244 }
00245
00246 if (_tick_counter & 3) return;
00247
00248
00249
00250
00251
00252 if (!(GetHouseSpecs(GetHouseType(tile))->building_flags & BUILDING_IS_ANIMATED)) {
00253 DeleteAnimatedTile(tile);
00254 return;
00255 }
00256
00257 if (!LiftHasDestination(tile)) {
00258 uint i;
00259
00260
00261
00262
00263
00264 do {
00265 i = RandomRange(7);
00266 } while (i == 1 || i * 6 == GetLiftPosition(tile));
00267
00268 SetLiftDestination(tile, i);
00269 }
00270
00271 int pos = GetLiftPosition(tile);
00272 int dest = GetLiftDestination(tile) * 6;
00273 pos += (pos < dest) ? 1 : -1;
00274 SetLiftPosition(tile, pos);
00275
00276 if (pos == dest) {
00277 HaltLift(tile);
00278 DeleteAnimatedTile(tile);
00279 }
00280
00281 MarkTileDirtyByTile(tile);
00282 }
00283
00290 static bool IsCloseToTown(TileIndex tile, uint dist)
00291 {
00292 const Town *t;
00293
00294 FOR_ALL_TOWNS(t) {
00295 if (DistanceManhattan(tile, t->xy) < dist) return true;
00296 }
00297 return false;
00298 }
00299
00308 static void MarkTownSignDirty(Town *t)
00309 {
00310 MarkAllViewportsDirty(
00311 t->sign.left - 6,
00312 t->sign.top - 3,
00313 t->sign.left + t->sign.width_1 * 4 + 12,
00314 t->sign.top + 45
00315 );
00316 }
00317
00323 void UpdateTownVirtCoord(Town *t)
00324 {
00325 MarkTownSignDirty(t);
00326 Point pt = RemapCoords2(TileX(t->xy) * TILE_SIZE, TileY(t->xy) * TILE_SIZE);
00327 SetDParam(0, t->index);
00328 SetDParam(1, t->population);
00329 UpdateViewportSignPos(&t->sign, pt.x, pt.y - 24,
00330 _settings_client.gui.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL);
00331 MarkTownSignDirty(t);
00332 }
00333
00335 void UpdateAllTownVirtCoords()
00336 {
00337 Town *t;
00338 FOR_ALL_TOWNS(t) {
00339 UpdateTownVirtCoord(t);
00340 }
00341 }
00342
00348 static void ChangePopulation(Town *t, int mod)
00349 {
00350 t->population += mod;
00351 InvalidateWindow(WC_TOWN_VIEW, t->index);
00352 UpdateTownVirtCoord(t);
00353
00354 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
00355 }
00356
00362 uint32 GetWorldPopulation()
00363 {
00364 uint32 pop = 0;
00365 const Town *t;
00366
00367 FOR_ALL_TOWNS(t) pop += t->population;
00368 return pop;
00369 }
00370
00375 static void MakeSingleHouseBigger(TileIndex tile)
00376 {
00377 assert(IsTileType(tile, MP_HOUSE));
00378
00379
00380 if (LiftHasDestination(tile)) return;
00381
00382
00383 IncHouseConstructionTick(tile);
00384 if (GetHouseConstructionTick(tile) != 0) return;
00385
00386 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00387
00388
00389 if (HasBit(hs->callback_mask, CBM_HOUSE_CONSTRUCTION_STATE_CHANGE)) {
00390 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CONSTRUCTION_STATE_CHANGE, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00391 if (callback_res != CALLBACK_FAILED) ChangeHouseAnimationFrame(hs->grffile, tile, callback_res);
00392 }
00393
00394 if (IsHouseCompleted(tile)) {
00395
00396
00397 ChangePopulation(GetTownByTile(tile), hs->population);
00398 ResetHouseAge(tile);
00399 }
00400 MarkTileDirtyByTile(tile);
00401 }
00402
00406 static void MakeTownHouseBigger(TileIndex tile)
00407 {
00408 uint flags = GetHouseSpecs(GetHouseType(tile))->building_flags;
00409 if (flags & BUILDING_HAS_1_TILE) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 0));
00410 if (flags & BUILDING_2_TILES_Y) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 1));
00411 if (flags & BUILDING_2_TILES_X) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 0));
00412 if (flags & BUILDING_HAS_4_TILES) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 1));
00413 }
00414
00421 static void TileLoop_Town(TileIndex tile)
00422 {
00423 HouseID house_id = GetHouseType(tile);
00424
00425
00426
00427 if (house_id >= NEW_HOUSE_OFFSET && !NewHouseTileLoop(tile)) return;
00428
00429 if (!IsHouseCompleted(tile)) {
00430
00431 MakeTownHouseBigger(tile);
00432 return;
00433 }
00434
00435 const HouseSpec *hs = GetHouseSpecs(house_id);
00436
00437
00438 if ((hs->building_flags & BUILDING_IS_ANIMATED) &&
00439 house_id < NEW_HOUSE_OFFSET &&
00440 !LiftHasDestination(tile) &&
00441 Chance16(1, 2)) {
00442 AddAnimatedTile(tile);
00443 }
00444
00445 Town *t = GetTownByTile(tile);
00446 uint32 r = Random();
00447
00448 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00449 for (uint i = 0; i < 256; i++) {
00450 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, r, house_id, t, tile);
00451
00452 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00453
00454 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grffile);
00455 if (cargo == CT_INVALID) continue;
00456
00457 uint amt = GB(callback, 0, 8);
00458 if (amt == 0) continue;
00459
00460 uint moved = MoveGoodsToStation(tile, 1, 1, cargo, amt);
00461
00462 const CargoSpec *cs = GetCargo(cargo);
00463 switch (cs->town_effect) {
00464 case TE_PASSENGERS:
00465 t->new_max_pass += amt;
00466 t->new_act_pass += moved;
00467 break;
00468
00469 case TE_MAIL:
00470 t->new_max_mail += amt;
00471 t->new_act_mail += moved;
00472 break;
00473
00474 default:
00475 break;
00476 }
00477 }
00478 } else {
00479 if (GB(r, 0, 8) < hs->population) {
00480 uint amt = GB(r, 0, 8) / 8 + 1;
00481
00482 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00483 t->new_max_pass += amt;
00484 t->new_act_pass += MoveGoodsToStation(tile, 1, 1, CT_PASSENGERS, amt);
00485 }
00486
00487 if (GB(r, 8, 8) < hs->mail_generation) {
00488 uint amt = GB(r, 8, 8) / 8 + 1;
00489
00490 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00491 t->new_max_mail += amt;
00492 t->new_act_mail += MoveGoodsToStation(tile, 1, 1, CT_MAIL, amt);
00493 }
00494 }
00495
00496 _current_company = OWNER_TOWN;
00497
00498 if (hs->building_flags & BUILDING_HAS_1_TILE &&
00499 HasBit(t->flags12, TOWN_IS_FUNDED) &&
00500 CanDeleteHouse(tile) &&
00501 GetHouseAge(tile) >= hs->minimum_life &&
00502 --t->time_until_rebuild == 0) {
00503 t->time_until_rebuild = GB(r, 16, 8) + 192;
00504
00505 ClearTownHouse(t, tile);
00506
00507
00508 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00509 }
00510
00511 _current_company = OWNER_NONE;
00512 }
00513
00518 static bool ClickTile_Town(TileIndex tile)
00519 {
00520
00521 return false;
00522 }
00523
00524 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00525 {
00526 if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
00527 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00528
00529 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00530
00531 CommandCost cost(EXPENSES_CONSTRUCTION);
00532 cost.AddCost(hs->GetRemovalCost());
00533
00534 int rating = hs->remove_rating_decrease;
00535 _cleared_town_rating += rating;
00536 Town *t = _cleared_town = GetTownByTile(tile);
00537
00538 if (IsValidCompanyID(_current_company)) {
00539 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00540 SetDParam(0, t->index);
00541 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00542 }
00543 }
00544
00545 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00546 if (flags & DC_EXEC) {
00547 ClearTownHouse(t, tile);
00548 }
00549
00550 return cost;
00551 }
00552
00553 static void GetProducedCargo_Town(TileIndex tile, CargoID *b)
00554 {
00555 HouseID house_id = GetHouseType(tile);
00556 const HouseSpec *hs = GetHouseSpecs(house_id);
00557 Town *t = GetTownByTile(tile);
00558
00559 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00560 for (uint i = 0; i < 256; i++) {
00561 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00562
00563 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00564
00565 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grffile);
00566
00567 if (cargo == CT_INVALID) continue;
00568 *(b++) = cargo;
00569 }
00570 } else {
00571 if (hs->population > 0) {
00572 *(b++) = CT_PASSENGERS;
00573 }
00574 if (hs->mail_generation > 0) {
00575 *(b++) = CT_MAIL;
00576 }
00577 }
00578 }
00579
00580 static void GetAcceptedCargo_Town(TileIndex tile, AcceptedCargo ac)
00581 {
00582 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00583 CargoID accepts[3];
00584
00585
00586 for (uint8 i = 0; i < lengthof(accepts); i++) {
00587 accepts[i] = hs->accepts_cargo[i];
00588 }
00589
00590
00591 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00592 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00593 if (callback != CALLBACK_FAILED) {
00594
00595 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grffile);
00596 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grffile);
00597 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grffile);
00598 }
00599 }
00600
00601
00602 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00603 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00604 if (callback != CALLBACK_FAILED) {
00605 if (accepts[0] != CT_INVALID) ac[accepts[0]] = GB(callback, 0, 4);
00606 if (accepts[1] != CT_INVALID) ac[accepts[1]] = GB(callback, 4, 4);
00607 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00608
00609 ac[CT_FOOD] = GB(callback, 8, 4);
00610 } else {
00611 if (accepts[2] != CT_INVALID) ac[accepts[2]] = GB(callback, 8, 4);
00612 }
00613 return;
00614 }
00615 }
00616
00617
00618 for (uint8 i = 0; i < lengthof(accepts); i++) {
00619 if (accepts[i] != CT_INVALID) ac[accepts[i]] = hs->cargo_acceptance[i];
00620 }
00621 }
00622
00623 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00624 {
00625 const HouseID house = GetHouseType(tile);
00626 const HouseSpec *hs = GetHouseSpecs(house);
00627 bool house_completed = IsHouseCompleted(tile);
00628
00629 td->str = hs->building_name;
00630
00631 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, GetTownByTile(tile), tile);
00632 if (callback_res != CALLBACK_FAILED) {
00633 StringID new_name = GetGRFStringID(hs->grffile->grfid, 0xD000 + callback_res);
00634 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00635 td->str = new_name;
00636 }
00637 }
00638
00639 if (!house_completed) {
00640 SetDParamX(td->dparam, 0, td->str);
00641 td->str = STR_2058_UNDER_CONSTRUCTION;
00642 }
00643
00644 if (hs->grffile != NULL) {
00645 const GRFConfig *gc = GetGRFConfig(hs->grffile->grfid);
00646 td->grf = gc->name;
00647 }
00648
00649 td->owner[0] = OWNER_TOWN;
00650 }
00651
00652 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00653 {
00654
00655 return 0;
00656 }
00657
00658 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00659 {
00660
00661 }
00662
00663 static bool GrowTown(Town *t);
00664
00665 static void TownTickHandler(Town *t)
00666 {
00667 if (HasBit(t->flags12, TOWN_IS_FUNDED)) {
00668 int i = t->grow_counter - 1;
00669 if (i < 0) {
00670 if (GrowTown(t)) {
00671 i = t->growth_rate;
00672 } else {
00673 i = 0;
00674 }
00675 }
00676 t->grow_counter = i;
00677 }
00678
00679 UpdateTownRadius(t);
00680 }
00681
00682 void OnTick_Town()
00683 {
00684 if (_game_mode == GM_EDITOR) return;
00685
00686
00687
00688 for (_cur_town_iter += GetMaxTownIndex() + 1;
00689 _cur_town_iter >= TOWN_GROWTH_FREQUENCY;
00690 _cur_town_iter -= TOWN_GROWTH_FREQUENCY) {
00691 uint32 i = _cur_town_ctr;
00692
00693 if (++_cur_town_ctr > GetMaxTownIndex())
00694 _cur_town_ctr = 0;
00695
00696 if (IsValidTownID(i)) TownTickHandler(GetTown(i));
00697 }
00698 }
00699
00708 static RoadBits GetTownRoadBits(TileIndex tile)
00709 {
00710 TrackBits b = GetAnyRoadTrackBits(tile, ROADTYPE_ROAD);
00711 RoadBits r = ROAD_NONE;
00712
00713 if (b == TRACK_BIT_NONE) return r;
00714 if (b & TRACK_BIT_X) r |= ROAD_X;
00715 if (b & TRACK_BIT_Y) r |= ROAD_Y;
00716 if (b & TRACK_BIT_UPPER) r |= ROAD_NE | ROAD_NW;
00717 if (b & TRACK_BIT_LOWER) r |= ROAD_SE | ROAD_SW;
00718 if (b & TRACK_BIT_LEFT) r |= ROAD_NW | ROAD_SW;
00719 if (b & TRACK_BIT_RIGHT) r |= ROAD_NE | ROAD_SE;
00720 return r;
00721 }
00722
00733 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00734 {
00735 if (!IsValidTile(tile)) return false;
00736
00737
00738 const TileIndexDiff tid_lt[3] = {
00739 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00740 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00741 TileOffsByDiagDir(ReverseDiagDir(dir)),
00742 };
00743
00744 dist_multi = (dist_multi + 1) * 4;
00745 for (uint pos = 4; pos < dist_multi; pos++) {
00746
00747 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00748
00749
00750 if (pos & 2) cur += tid_lt[2];
00751
00752
00753 if (IsValidTile(tile + cur) &&
00754 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00755 }
00756 return false;
00757 }
00758
00767 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00768 {
00769 if (TileX(tile) < 2 || TileX(tile) >= MapMaxX() || TileY(tile) < 2 || TileY(tile) >= MapMaxY()) return false;
00770
00771 Slope cur_slope, desired_slope;
00772
00773 for (;;) {
00774
00775 if (GetTownRoadBits(tile) == ROAD_NONE) {
00776
00777
00778
00779 if (CmdFailed(DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_X : ROAD_Y), 0, DC_AUTO, CMD_BUILD_ROAD)) &&
00780 CmdFailed(DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR)))
00781 return false;
00782 }
00783
00784 cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile, NULL) : GetTileSlope(tile, NULL);
00785 if (cur_slope == SLOPE_FLAT) {
00786 no_slope:
00787
00788 switch (t->layout) {
00789 default: NOT_REACHED();
00790
00791 case TL_ORIGINAL:
00792 return !IsNeighborRoadTile(tile, dir, 1);
00793
00794 case TL_BETTER_ROADS:
00795 return !IsNeighborRoadTile(tile, dir, 2);
00796 }
00797 }
00798
00799
00800
00801 desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00802 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00803 if (Chance16(1, 8)) {
00804 CommandCost res = CMD_ERROR;
00805 if (!_generating_world && Chance16(1, 10)) {
00806
00807 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00808 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00809 }
00810 if (CmdFailed(res) && Chance16(1, 3)) {
00811
00812 goto no_slope;
00813 }
00814 }
00815 return false;
00816 }
00817 return true;
00818 }
00819 }
00820
00821 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00822 {
00823 assert(tile < MapSize());
00824
00825 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00826 if (CmdFailed(r) || r.GetCost() >= (_price.terraform + 2) * 8) return false;
00827 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00828 return true;
00829 }
00830
00831 static void LevelTownLand(TileIndex tile)
00832 {
00833 assert(tile < MapSize());
00834
00835
00836 if (IsTileType(tile, MP_HOUSE)) return;
00837 Slope tileh = GetTileSlope(tile, NULL);
00838 if (tileh == SLOPE_FLAT) return;
00839
00840
00841 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00842 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00843 }
00844 }
00845
00855 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00856 {
00857
00858 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00859 RoadBits rcmd = ROAD_NONE;
00860
00861 switch (t->layout) {
00862 default: NOT_REACHED();
00863
00864 case TL_2X2_GRID:
00865 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00866 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00867 break;
00868
00869 case TL_3X3_GRID:
00870 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00871 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00872 break;
00873 }
00874
00875
00876 if (rcmd != ROAD_ALL) return rcmd;
00877
00878 RoadBits rb_template;
00879
00880 switch (GetTileSlope(tile, NULL)) {
00881 default: rb_template = ROAD_ALL; break;
00882 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00883 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00884 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00885 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00886 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00887 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00888 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00889 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00890 case SLOPE_STEEP_W:
00891 case SLOPE_STEEP_S:
00892 case SLOPE_STEEP_E:
00893 case SLOPE_STEEP_N:
00894 rb_template = ROAD_NONE;
00895 break;
00896 }
00897
00898
00899 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00900
00901 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00902 }
00903
00914 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00915 {
00916
00917 if (TileX(tile) < 2 || TileY(tile) < 2 || MapMaxX() <= TileX(tile) || MapMaxY() <= TileY(tile)) return false;
00918
00919 uint counter = 0;
00920
00921
00922 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00923
00924 if (IsTileType(TileAddByDiagDir(tile, dir), MP_HOUSE)) counter++;
00925
00926
00927 if (counter >= 3) {
00928 if (BuildTownHouse(t, tile)) {
00929 _grow_town_result = GROWTH_SUCCEED;
00930 return true;
00931 }
00932 return false;
00933 }
00934 }
00935 return false;
00936 }
00937
00946 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
00947 {
00948 if (CmdSucceeded(DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD))) {
00949 _grow_town_result = GROWTH_SUCCEED;
00950 return true;
00951 }
00952 return false;
00953 }
00954
00965 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
00966 {
00967 assert(bridge_dir < DIAGDIR_END);
00968
00969 const Slope slope = GetTileSlope(tile, NULL);
00970 if (slope == SLOPE_FLAT) return false;
00971
00972
00973
00974
00975 if (HASBITS(slope, InclinedSlope(bridge_dir))) return false;
00976
00977
00978 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
00979
00980
00981 uint8 bridge_length = 0;
00982 TileIndex bridge_tile = tile;
00983
00984 const int delta = TileOffsByDiagDir(bridge_dir);
00985 do {
00986 if (bridge_length++ >= 11) {
00987
00988 return false;
00989 }
00990 bridge_tile += delta;
00991 } while (TileX(bridge_tile) != 0 && TileY(bridge_tile) != 0 && IsWaterTile(bridge_tile));
00992
00993
00994 if (bridge_length == 1) return false;
00995
00996 for (uint8 times = 0; times <= 22; times++) {
00997 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
00998
00999
01000 if (CmdSucceeded(DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_AUTO, CMD_BUILD_BRIDGE))) {
01001 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | DC_AUTO, CMD_BUILD_BRIDGE);
01002 _grow_town_result = GROWTH_SUCCEED;
01003 return true;
01004 }
01005 }
01006
01007 return false;
01008 }
01009
01027 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01028 {
01029 RoadBits rcmd = ROAD_NONE;
01030 TileIndex tile = *tile_ptr;
01031
01032 assert(tile < MapSize());
01033
01034 if (cur_rb == ROAD_NONE) {
01035
01036
01037 _grow_town_result = GROWTH_SEARCH_STOPPED;
01038
01039 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01040
01041
01042 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01043
01044
01045 switch (t1->layout) {
01046 default: NOT_REACHED();
01047
01048 case TL_3X3_GRID:
01049 case TL_2X2_GRID:
01050 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01051 if (rcmd == ROAD_NONE) return;
01052 break;
01053
01054 case TL_BETTER_ROADS:
01055 case TL_ORIGINAL:
01056 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01057
01058 DiagDirection source_dir = ReverseDiagDir(target_dir);
01059
01060 if (Chance16(1, 4)) {
01061
01062 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01063 }
01064
01065 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01066
01067
01068 if (target_dir != ReverseDiagDir(source_dir)) return;
01069
01070
01071 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01072 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01073 return;
01074 }
01075
01076
01077
01078 }
01079
01080 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01081 break;
01082 }
01083
01084 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01085
01086
01087
01088 _grow_town_result = GROWTH_SEARCH_STOPPED;
01089
01090 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01091
01092 switch (t1->layout) {
01093 default: NOT_REACHED();
01094
01095 case TL_3X3_GRID:
01096 case TL_2X2_GRID:
01097 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01098 break;
01099
01100 case TL_BETTER_ROADS:
01101 case TL_ORIGINAL:
01102 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01103 break;
01104 }
01105 } else {
01106 bool allow_house = true;
01107
01108
01109 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01110 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
01111 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01112 }
01113 return;
01114 }
01115
01116
01117
01118 target_dir = RandomDiagDir();
01119 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01120
01121
01122 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01123
01124
01125 if (IsWaterTile(house_tile)) return;
01126
01127 if (!IsValidTile(house_tile) || !IsValidTile(house_tile + TileOffsByDiagDir(target_dir))) return;
01128
01129 if (_settings_game.economy.allow_town_roads || _generating_world) {
01130 switch (t1->layout) {
01131 default: NOT_REACHED();
01132
01133 case TL_3X3_GRID:
01134 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01135
01136
01137 case TL_2X2_GRID:
01138 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01139 allow_house = (rcmd == ROAD_NONE);
01140 break;
01141
01142 case TL_BETTER_ROADS:
01143 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01144
01145
01146 case TL_ORIGINAL:
01147
01148
01149 rcmd = DiagDirToRoadBits(target_dir);
01150 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01151 break;
01152 }
01153 }
01154
01155 if (allow_house) {
01156
01157 if (!IsTileType(house_tile, MP_HOUSE)) {
01158
01159 if (Chance16(1, 6)) LevelTownLand(house_tile);
01160
01161
01162
01163 if (BuildTownHouse(t1, house_tile)) {
01164 _grow_town_result = GROWTH_SUCCEED;
01165 }
01166 }
01167 return;
01168 }
01169
01170 _grow_town_result = GROWTH_SEARCH_STOPPED;
01171 }
01172
01173
01174 if (IsWaterTile(tile)) return;
01175
01176
01177 rcmd = CleanUpRoadBits(tile, rcmd);
01178 if (rcmd == ROAD_NONE) return;
01179
01180
01181
01182
01183 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01184
01185 GrowTownWithRoad(t1, tile, rcmd);
01186 }
01187
01193 static int GrowTownAtRoad(Town *t, TileIndex tile)
01194 {
01195
01196
01197
01198 DiagDirection target_dir = DIAGDIR_END;
01199
01200 assert(tile < MapSize());
01201
01202
01203
01204
01205 switch (t->layout) {
01206 case TL_BETTER_ROADS:
01207 _grow_town_result = 10 + t->num_houses * 2 / 9;
01208 break;
01209
01210 case TL_3X3_GRID:
01211 case TL_2X2_GRID:
01212 _grow_town_result = 10 + t->num_houses * 1 / 9;
01213 break;
01214
01215 default:
01216 _grow_town_result = 10 + t->num_houses * 4 / 9;
01217 break;
01218 }
01219
01220 do {
01221 RoadBits cur_rb = GetTownRoadBits(tile);
01222
01223
01224 GrowTownInTile(&tile, cur_rb, target_dir, t);
01225
01226
01227
01228 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01229 if (cur_rb == ROAD_NONE)
01230 return _grow_town_result;
01231
01232
01233
01234 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01235 tile = TileAddByDiagDir(tile, target_dir);
01236
01237 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01238
01239 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && GetTownByTile(tile) != t) {
01240 _grow_town_result = GROWTH_SUCCEED;
01241 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01242
01243
01244 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01245 SetTownIndex(tile, t->index);
01246 }
01247 }
01248
01249
01250 } while (--_grow_town_result >= 0);
01251
01252 return (_grow_town_result == -2);
01253 }
01254
01262 static RoadBits GenRandomRoadBits()
01263 {
01264 uint32 r = Random();
01265 uint a = GB(r, 0, 2);
01266 uint b = GB(r, 8, 2);
01267 if (a == b) b ^= 2;
01268 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01269 }
01270
01275 static bool GrowTown(Town *t)
01276 {
01277 static const TileIndexDiffC _town_coord_mod[] = {
01278 {-1, 0},
01279 { 1, 1},
01280 { 1, -1},
01281 {-1, -1},
01282 {-1, 0},
01283 { 0, 2},
01284 { 2, 0},
01285 { 0, -2},
01286 {-1, -1},
01287 {-2, 2},
01288 { 2, 2},
01289 { 2, -2},
01290 { 0, 0}
01291 };
01292
01293
01294 CompanyID old_company = _current_company;
01295 _current_company = OWNER_TOWN;
01296
01297 TileIndex tile = t->xy;
01298
01299
01300 const TileIndexDiffC *ptr;
01301 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01302 if (GetTownRoadBits(tile) != ROAD_NONE) {
01303 int r = GrowTownAtRoad(t, tile);
01304 _current_company = old_company;
01305 return r != 0;
01306 }
01307 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01308 }
01309
01310
01311
01312 tile = t->xy;
01313 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01314
01315 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile, NULL) == SLOPE_FLAT) {
01316 if (CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR))) {
01317 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01318 _current_company = old_company;
01319 return true;
01320 }
01321 }
01322 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01323 }
01324
01325 _current_company = old_company;
01326 return false;
01327 }
01328
01329 void UpdateTownRadius(Town *t)
01330 {
01331 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01332 { 4, 0, 0, 0, 0},
01333 { 16, 0, 0, 0, 0},
01334 { 25, 0, 0, 0, 0},
01335 { 36, 0, 0, 0, 0},
01336 { 49, 0, 4, 0, 0},
01337 { 64, 0, 4, 0, 0},
01338 { 64, 0, 9, 0, 1},
01339 { 64, 0, 9, 0, 4},
01340 { 64, 0, 16, 0, 4},
01341 { 81, 0, 16, 0, 4},
01342 { 81, 0, 16, 0, 4},
01343 { 81, 0, 25, 0, 9},
01344 { 81, 36, 25, 0, 9},
01345 { 81, 36, 25, 16, 9},
01346 { 81, 49, 0, 25, 9},
01347 { 81, 64, 0, 25, 9},
01348 { 81, 64, 0, 36, 9},
01349 { 81, 64, 0, 36, 16},
01350 {100, 81, 0, 49, 16},
01351 {100, 81, 0, 49, 25},
01352 {121, 81, 0, 49, 25},
01353 {121, 81, 0, 49, 25},
01354 {121, 81, 0, 49, 36},
01355 };
01356
01357 if (t->num_houses < 92) {
01358 memcpy(t->squared_town_zone_radius, _town_squared_town_zone_radius_data[t->num_houses / 4], sizeof(t->squared_town_zone_radius));
01359 } else {
01360 int mass = t->num_houses / 8;
01361
01362
01363
01364 t->squared_town_zone_radius[0] = mass * 15 - 40;
01365 t->squared_town_zone_radius[1] = mass * 9 - 15;
01366 t->squared_town_zone_radius[2] = 0;
01367 t->squared_town_zone_radius[3] = mass * 5 - 5;
01368 t->squared_town_zone_radius[4] = mass * 3 + 5;
01369 }
01370 }
01371
01372 extern int _nb_orig_names;
01373
01378 struct TownNameParams {
01379 uint32 grfid;
01380 uint16 townnametype;
01381 bool grf;
01382
01383 TownNameParams(byte town_name)
01384 {
01385 this->grf = town_name >= _nb_orig_names;
01386 this->grfid = this->grf ? GetGRFTownNameId(town_name - _nb_orig_names) : 0;
01387 this->townnametype = this->grf ? GetGRFTownNameType(town_name - _nb_orig_names) : SPECSTR_TOWNNAME_START + town_name;
01388 }
01389 };
01390
01397 static bool VerifyTownName(uint32 r, const TownNameParams *par)
01398 {
01399
01400 char buf1[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01401 char buf2[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01402
01403 SetDParam(0, r);
01404 if (par->grf && par->grfid != 0) {
01405 GRFTownNameGenerate(buf1, par->grfid, par->townnametype, r, lastof(buf1));
01406 } else {
01407 GetString(buf1, par->townnametype, lastof(buf1));
01408 }
01409
01410
01411 if (strlen(buf1) >= MAX_LENGTH_TOWN_NAME_BYTES) return false;
01412
01413 const Town *t;
01414 FOR_ALL_TOWNS(t) {
01415
01416
01417 SetDParam(0, t->index);
01418 GetString(buf2, STR_TOWN, lastof(buf2));
01419 if (strcmp(buf1, buf2) == 0) return false;
01420 }
01421
01422 return true;
01423 }
01424
01430 bool GenerateTownName(uint32 *townnameparts)
01431 {
01432
01433
01434
01435
01436
01437 int tries = 1000;
01438 TownNameParams par(_settings_game.game_creation.town_name);
01439
01440 assert(townnameparts != NULL);
01441
01442 for (;;) {
01443 uint32 r = InteractiveRandom();
01444
01445 if (!VerifyTownName(r, &par)) {
01446 if (tries-- < 0) return false;
01447 continue;
01448 }
01449
01450 *townnameparts = r;
01451 return true;
01452 }
01453 }
01454
01455 void UpdateTownMaxPass(Town *t)
01456 {
01457 t->max_pass = t->population >> 3;
01458 t->max_mail = t->population >> 4;
01459 }
01460
01470 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01471 {
01472 t->xy = tile;
01473 t->num_houses = 0;
01474 t->time_until_rebuild = 10;
01475 UpdateTownRadius(t);
01476 t->flags12 = 0;
01477 t->population = 0;
01478 t->grow_counter = 0;
01479 t->growth_rate = 250;
01480 t->new_max_pass = 0;
01481 t->new_max_mail = 0;
01482 t->new_act_pass = 0;
01483 t->new_act_mail = 0;
01484 t->max_pass = 0;
01485 t->max_mail = 0;
01486 t->act_pass = 0;
01487 t->act_mail = 0;
01488
01489 t->pct_pass_transported = 0;
01490 t->pct_mail_transported = 0;
01491 t->fund_buildings_months = 0;
01492 t->new_act_food = 0;
01493 t->new_act_water = 0;
01494 t->act_food = 0;
01495 t->act_water = 0;
01496
01497 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01498
01499 t->have_ratings = 0;
01500 t->exclusivity = INVALID_COMPANY;
01501 t->exclusive_counter = 0;
01502 t->statues = 0;
01503
01504 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01505
01506 t->townnamegrfid = 0;
01507 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01508 } else {
01509
01510 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01511 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01512 }
01513 t->townnameparts = townnameparts;
01514
01515 UpdateTownVirtCoord(t);
01516 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01517
01518 t->InitializeLayout(layout);
01519
01520 t->larger_town = city;
01521
01522 int x = (int)size * 16 + 3;
01523 if (size == TS_RANDOM) x = (Random() & 0xF) + 8;
01524 if (city) x *= _settings_game.economy.initial_city_size;
01525
01526 t->num_houses += x;
01527 UpdateTownRadius(t);
01528
01529 int i = x * 4;
01530 do {
01531 GrowTown(t);
01532 } while (--i);
01533
01534 t->num_houses -= x;
01535 UpdateTownRadius(t);
01536 UpdateTownMaxPass(t);
01537 UpdateAirportsNoise();
01538 }
01539
01550 CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01551 {
01552
01553 if (_game_mode != GM_EDITOR) return CMD_ERROR;
01554
01555 TownSize size = (TownSize)GB(p1, 0, 2);
01556 bool city = HasBit(p1, 2);
01557 TownLayout layout = (TownLayout)GB(p1, 3, 3);
01558 TownNameParams par(_settings_game.game_creation.town_name);
01559 uint32 townnameparts = p2;
01560
01561 if (size > TS_RANDOM) return CMD_ERROR;
01562 if (layout > TL_RANDOM) return CMD_ERROR;
01563 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
01564
01565
01566 if (DistanceFromEdge(tile) < 12) {
01567 return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
01568 }
01569
01570
01571 if (IsCloseToTown(tile, 20)) {
01572 return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
01573 }
01574
01575
01576 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
01577 return_cmd_error(STR_0239_SITE_UNSUITABLE);
01578 }
01579
01580
01581 if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
01582
01583
01584 if (flags & DC_EXEC) {
01585 Town *t = new Town(tile);
01586 _generating_world = true;
01587 UpdateNearestTownForRoadTiles(true);
01588 DoCreateTown(t, tile, townnameparts, size, city, layout);
01589 UpdateNearestTownForRoadTiles(false);
01590 _generating_world = false;
01591 }
01592 return CommandCost();
01593 }
01594
01595 Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layout)
01596 {
01597 if (!Town::CanAllocateItem()) return NULL;
01598
01599 do {
01600
01601 TileIndex tile = RandomTile();
01602 switch (layout) {
01603 case TL_2X2_GRID:
01604 tile = TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01605 break;
01606 case TL_3X3_GRID:
01607 tile = TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01608 break;
01609 default: break;
01610 }
01611 if (DistanceFromEdge(tile) < 20) continue;
01612
01613
01614 if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
01615
01616
01617 if (IsCloseToTown(tile, 20)) continue;
01618
01619 uint32 townnameparts;
01620
01621
01622 if (!GenerateTownName(&townnameparts)) break;
01623
01624
01625 Town *t = new Town(tile);
01626
01627 DoCreateTown(t, tile, townnameparts, size, city, layout);
01628 return t;
01629 } while (--attempts != 0);
01630
01631 return NULL;
01632 }
01633
01634 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01635
01636 bool GenerateTowns(TownLayout layout)
01637 {
01638 uint num = 0;
01639 uint difficulty = _settings_game.difficulty.number_towns;
01640 uint n = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01641
01642 SetGeneratingWorldProgress(GWP_TOWN, n);
01643
01644 do {
01645 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01646 IncreaseGeneratingWorldProgress(GWP_TOWN);
01647
01648 if (CreateRandomTown(20, TS_RANDOM, city, layout) != NULL) num++;
01649 } while (--n);
01650
01651
01652 if (num == 0 && CreateRandomTown(10000, TS_RANDOM, _settings_game.economy.larger_towns != 0, layout) == NULL) {
01653 if (GetNumTowns() == 0) {
01654 if (_game_mode != GM_EDITOR) {
01655 extern StringID _switch_mode_errorstr;
01656 _switch_mode_errorstr = STR_COULD_NOT_CREATE_TOWN;
01657 }
01658
01659 return false;
01660 }
01661 }
01662
01663 return true;
01664 }
01665
01666
01672 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01673 {
01674 uint dist = DistanceSquare(tile, t->xy);
01675
01676 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01677
01678 HouseZonesBits smallest = HZB_TOWN_EDGE;
01679 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01680 if (dist < t->squared_town_zone_radius[i]) smallest = i;
01681 }
01682
01683 return smallest;
01684 }
01685
01696 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01697 {
01698 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01699
01700 assert(CmdSucceeded(cc));
01701
01702 IncreaseBuildingCount(t, type);
01703 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01704 if (GetHouseSpecs(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01705
01706 MarkTileDirtyByTile(tile);
01707 }
01708
01709
01720 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01721 {
01722 BuildingFlags size = GetHouseSpecs(type)->building_flags;
01723
01724 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01725 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01726 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01727 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01728 }
01729
01730
01739 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01740 {
01741
01742 Slope slope = GetTileSlope(tile, NULL);
01743 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01744
01745
01746 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01747
01748
01749 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01750
01751
01752 return CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR));
01753 }
01754
01755
01765 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, uint z, bool noslope)
01766 {
01767 if (!CanBuildHouseHere(tile, town, noslope)) return false;
01768
01769
01770 if (GetTileMaxZ(tile) != z) return false;
01771
01772 return true;
01773 }
01774
01775
01785 static bool CheckFree2x2Area(TileIndex tile, TownID town, uint z, bool noslope)
01786 {
01787
01788 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01789
01790 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
01791 tile += TileOffsByDiagDir(d);
01792 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01793 }
01794
01795 return true;
01796 }
01797
01798
01806 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
01807 {
01808
01809 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01810
01811 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
01812
01813 switch (t->layout) {
01814 case TL_2X2_GRID:
01815 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
01816 break;
01817
01818 case TL_3X3_GRID:
01819 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
01820 break;
01821
01822 default:
01823 break;
01824 }
01825
01826 return true;
01827 }
01828
01829
01837 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
01838 {
01839
01840 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01841
01842
01843
01844 uint dx = MapSize() + TileX(t->xy) - TileX(tile);
01845 uint dy = MapSize() + TileY(t->xy) - TileY(tile);
01846
01847 switch (t->layout) {
01848 case TL_2X2_GRID:
01849 if ((dx % 3) != 0 || (dy % 3) != 0) return false;
01850 break;
01851
01852 case TL_3X3_GRID:
01853 if ((dx % 4) < 2 || (dy % 4) < 2) return false;
01854 break;
01855
01856 default:
01857 break;
01858 }
01859
01860 return true;
01861 }
01862
01863
01873 static bool CheckTownBuild2House(TileIndex *tile, Town *t, uint maxz, bool noslope, DiagDirection second)
01874 {
01875
01876
01877 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
01878 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
01879
01880 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
01881 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
01882 *tile = tile2;
01883 return true;
01884 }
01885
01886 return false;
01887 }
01888
01889
01898 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, uint maxz, bool noslope)
01899 {
01900 TileIndex tile2 = *tile;
01901
01902 for (DiagDirection d = DIAGDIR_SE;;d++) {
01903 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
01904 *tile = tile2;
01905 return true;
01906 }
01907 if (d == DIAGDIR_END) break;
01908 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
01909 }
01910
01911 return false;
01912 }
01913
01914
01921 static bool BuildTownHouse(Town *t, TileIndex tile)
01922 {
01923
01924 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
01925
01926
01927 if (!CanBuildHouseHere(tile, t->index, false)) return false;
01928
01929 uint z;
01930 Slope slope = GetTileSlope(tile, &z);
01931
01932
01933
01934 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
01935
01936
01937 int land = _settings_game.game_creation.landscape;
01938 if (land == LT_ARCTIC && z >= _settings_game.game_creation.snow_line) land = -1;
01939
01940 uint bitmask = (1 << rad) + (1 << (land + 12));
01941
01942
01943
01944
01945 HouseID houses[HOUSE_MAX];
01946 uint num = 0;
01947 uint probs[HOUSE_MAX];
01948 uint probability_max = 0;
01949
01950
01951 for (uint i = 0; i < HOUSE_MAX; i++) {
01952 const HouseSpec *hs = GetHouseSpecs(i);
01953
01954
01955 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled) continue;
01956
01957
01958 if (hs->class_id != HOUSE_NO_CLASS) {
01959
01960 if (t->building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
01961 } else {
01962
01963 if (t->building_counts.id_count[i] == UINT16_MAX) continue;
01964 }
01965
01966
01967 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
01968 probability_max += cur_prob;
01969 probs[num] = cur_prob;
01970 houses[num++] = (HouseID)i;
01971 }
01972
01973 uint maxz = GetTileMaxZ(tile);
01974
01975 while (probability_max > 0) {
01976 uint r = RandomRange(probability_max);
01977 uint i;
01978 for (i = 0; i < num; i++) {
01979 if (probs[i] > r) break;
01980 r -= probs[i];
01981 }
01982
01983 HouseID house = houses[i];
01984 probability_max -= probs[i];
01985
01986
01987 num--;
01988 houses[i] = houses[num];
01989 probs[i] = probs[num];
01990
01991 const HouseSpec *hs = GetHouseSpecs(house);
01992
01993 if (_loaded_newgrf_features.has_newhouses) {
01994 if (hs->override != 0) {
01995 house = hs->override;
01996 hs = GetHouseSpecs(house);
01997 }
01998
01999 if ((hs->extra_flags & BUILDING_IS_HISTORICAL) && !_generating_world && _game_mode != GM_EDITOR) continue;
02000 }
02001
02002 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02003
02004
02005 uint oneof = 0;
02006
02007 if (hs->building_flags & BUILDING_IS_CHURCH) {
02008 SetBit(oneof, TOWN_HAS_CHURCH);
02009 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02010 SetBit(oneof, TOWN_HAS_STADIUM);
02011 }
02012
02013 if (HASBITS(t->flags12, oneof)) continue;
02014
02015
02016 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02017 if (noslope && slope != SLOPE_FLAT) continue;
02018
02019 if (hs->building_flags & TILE_SIZE_2x2) {
02020 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02021 } else if (hs->building_flags & TILE_SIZE_2x1) {
02022 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02023 } else if (hs->building_flags & TILE_SIZE_1x2) {
02024 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02025 } else {
02026
02027 }
02028
02029 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02030 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile);
02031 if (callback_res != CALLBACK_FAILED && GB(callback_res, 0, 8) == 0) continue;
02032 }
02033
02034
02035 t->num_houses++;
02036
02037
02038 t->flags12 |= oneof;
02039
02040 byte construction_counter = 0;
02041 byte construction_stage = 0;
02042
02043 if (_generating_world || _game_mode == GM_EDITOR) {
02044 uint32 r = Random();
02045
02046 construction_stage = TOWN_HOUSE_COMPLETED;
02047 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02048
02049 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02050 ChangePopulation(t, hs->population);
02051 } else {
02052 construction_counter = GB(r, 2, 2);
02053 }
02054 }
02055
02056 MakeTownHouse(tile, t, construction_counter, construction_stage, house, Random());
02057
02058 return true;
02059 }
02060
02061 return false;
02062 }
02063
02070 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02071 {
02072 assert(IsTileType(tile, MP_HOUSE));
02073 DecreaseBuildingCount(t, house);
02074 DoClearSquare(tile);
02075 DeleteAnimatedTile(tile);
02076 }
02077
02085 TileIndexDiff GetHouseNorthPart(HouseID &house)
02086 {
02087 if (house >= 3) {
02088 if (GetHouseSpecs(house - 1)->building_flags & TILE_SIZE_2x1) {
02089 house--;
02090 return TileDiffXY(-1, 0);
02091 } else if (GetHouseSpecs(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02092 house--;
02093 return TileDiffXY(0, -1);
02094 } else if (GetHouseSpecs(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02095 house -= 2;
02096 return TileDiffXY(-1, 0);
02097 } else if (GetHouseSpecs(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02098 house -= 3;
02099 return TileDiffXY(-1, -1);
02100 }
02101 }
02102 return 0;
02103 }
02104
02105 void ClearTownHouse(Town *t, TileIndex tile)
02106 {
02107 assert(IsTileType(tile, MP_HOUSE));
02108
02109 HouseID house = GetHouseType(tile);
02110
02111
02112 tile += GetHouseNorthPart(house);
02113
02114 const HouseSpec *hs = GetHouseSpecs(house);
02115
02116
02117 if (IsHouseCompleted(tile)) {
02118 ChangePopulation(t, -hs->population);
02119 }
02120
02121 t->num_houses--;
02122
02123
02124 if (hs->building_flags & BUILDING_IS_CHURCH) {
02125 ClrBit(t->flags12, TOWN_HAS_CHURCH);
02126 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02127 ClrBit(t->flags12, TOWN_HAS_STADIUM);
02128 }
02129
02130
02131 uint eflags = hs->building_flags;
02132 DoClearTownHouseHelper(tile, t, house);
02133 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02134 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02135 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02136 }
02137
02138 static bool IsUniqueTownName(const char *name)
02139 {
02140 const Town *t;
02141
02142 FOR_ALL_TOWNS(t) {
02143 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
02144 }
02145
02146 return true;
02147 }
02148
02155 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02156 {
02157 if (!IsValidTownID(p1)) return CMD_ERROR;
02158
02159 bool reset = StrEmpty(text);
02160
02161 if (!reset) {
02162 if (strlen(text) >= MAX_LENGTH_TOWN_NAME_BYTES) return CMD_ERROR;
02163 if (!IsUniqueTownName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
02164 }
02165
02166 if (flags & DC_EXEC) {
02167 Town *t = GetTown(p1);
02168
02169 free(t->name);
02170 t->name = reset ? NULL : strdup(text);
02171
02172 UpdateTownVirtCoord(t);
02173 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02174 UpdateAllStationVirtCoord();
02175 UpdateAllWaypointSigns();
02176 MarkWholeScreenDirty();
02177 }
02178 return CommandCost();
02179 }
02180
02182 void ExpandTown(Town *t)
02183 {
02184
02185
02186 static bool warned_no_roads = false;
02187 if (!_settings_game.economy.allow_town_roads && !warned_no_roads) {
02188 ShowErrorMessage(INVALID_STRING_ID, STR_TOWN_EXPAND_WARN_NO_ROADS, 0, 0);
02189 warned_no_roads = true;
02190 }
02191
02192
02193 uint amount = RandomRange(ClampToU16(t->num_houses / 10)) + 3;
02194 t->num_houses += amount;
02195 UpdateTownRadius(t);
02196
02197 uint n = amount * 10;
02198 do GrowTown(t); while (--n);
02199
02200 t->num_houses -= amount;
02201 UpdateTownRadius(t);
02202
02203 UpdateTownMaxPass(t);
02204 }
02205
02206 extern const byte _town_action_costs[8] = {
02207 2, 4, 9, 35, 48, 53, 117, 175
02208 };
02209
02210 static void TownActionAdvertiseSmall(Town *t)
02211 {
02212 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02213 }
02214
02215 static void TownActionAdvertiseMedium(Town *t)
02216 {
02217 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02218 }
02219
02220 static void TownActionAdvertiseLarge(Town *t)
02221 {
02222 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02223 }
02224
02225 static void TownActionRoadRebuild(Town *t)
02226 {
02227 t->road_build_months = 6;
02228
02229 char company_name[MAX_LENGTH_COMPANY_NAME_BYTES];
02230 SetDParam(0, _current_company);
02231 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02232
02233 char *cn = strdup(company_name);
02234 SetDParam(0, t->index);
02235 SetDParamStr(1, cn);
02236
02237 AddNewsItem(STR_2055_TRAFFIC_CHAOS_IN_ROAD_REBUILDING, NS_GENERAL, t->xy, 0, cn);
02238 }
02239
02240 static bool DoBuildStatueOfCompany(TileIndex tile, TownID town_id)
02241 {
02242
02243 if (IsSteepSlope(GetTileSlope(tile, NULL))) return false;
02244
02245 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02246
02247 if (!IsTileType(tile, MP_HOUSE) &&
02248 !IsTileType(tile, MP_CLEAR) &&
02249 !IsTileType(tile, MP_TREES)) {
02250 return false;
02251 }
02252
02253 CompanyID old = _current_company;
02254 _current_company = OWNER_NONE;
02255 CommandCost r = DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02256 _current_company = old;
02257
02258 if (CmdFailed(r)) return false;
02259
02260 MakeStatue(tile, _current_company, town_id);
02261 MarkTileDirtyByTile(tile);
02262
02263 return true;
02264 }
02265
02272 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02273 {
02274 TownID *town_id = (TownID *)user_data;
02275 return DoBuildStatueOfCompany(tile, *town_id);
02276 }
02277
02283 static void TownActionBuildStatue(Town *t)
02284 {
02285 TileIndex tile = t->xy;
02286
02287 if (CircularTileSearch(&tile, 9, SearchTileForStatue, &t->index)) {
02288 SetBit(t->statues, _current_company);
02289 }
02290 }
02291
02292 static void TownActionFundBuildings(Town *t)
02293 {
02294
02295 t->grow_counter = 1;
02296
02297 SetBit(t->flags12, TOWN_IS_FUNDED);
02298
02299 t->fund_buildings_months = 3;
02300 }
02301
02302 static void TownActionBuyRights(Town *t)
02303 {
02304
02305 if (!_settings_game.economy.exclusive_rights) return;
02306
02307 t->exclusive_counter = 12;
02308 t->exclusivity = _current_company;
02309
02310 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02311 }
02312
02313 static void TownActionBribe(Town *t)
02314 {
02315 if (Chance16(1, 14)) {
02316
02317 t->unwanted[_current_company] = 6;
02318
02319
02320 Station *st;
02321 FOR_ALL_STATIONS(st) {
02322 if (st->town == t && st->owner == _current_company) {
02323 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02324 }
02325 }
02326
02327
02328
02329 if (IsLocalCompany()) ShowErrorMessage(STR_BRIBE_FAILED_2, STR_BRIBE_FAILED, 0, 0);
02330
02331
02332
02333
02334
02335 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02336 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02337 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02338 }
02339 } else {
02340 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02341 }
02342 }
02343
02344 typedef void TownActionProc(Town *t);
02345 static TownActionProc * const _town_action_proc[] = {
02346 TownActionAdvertiseSmall,
02347 TownActionAdvertiseMedium,
02348 TownActionAdvertiseLarge,
02349 TownActionRoadRebuild,
02350 TownActionBuildStatue,
02351 TownActionFundBuildings,
02352 TownActionBuyRights,
02353 TownActionBribe
02354 };
02355
02356 enum TownActions {
02357 TACT_NONE = 0x00,
02358
02359 TACT_ADVERTISE_SMALL = 0x01,
02360 TACT_ADVERTISE_MEDIUM = 0x02,
02361 TACT_ADVERTISE_LARGE = 0x04,
02362 TACT_ROAD_REBUILD = 0x08,
02363 TACT_BUILD_STATUE = 0x10,
02364 TACT_FOUND_BUILDINGS = 0x20,
02365 TACT_BUY_RIGHTS = 0x40,
02366 TACT_BRIBE = 0x80,
02367
02368 TACT_ADVERTISE = TACT_ADVERTISE_SMALL | TACT_ADVERTISE_MEDIUM | TACT_ADVERTISE_LARGE,
02369 TACT_CONSTRUCTION = TACT_ROAD_REBUILD | TACT_BUILD_STATUE | TACT_FOUND_BUILDINGS,
02370 TACT_FUNDS = TACT_BUY_RIGHTS | TACT_BRIBE,
02371 TACT_ALL = TACT_ADVERTISE | TACT_CONSTRUCTION | TACT_FUNDS,
02372 };
02373
02374 DECLARE_ENUM_AS_BIT_SET(TownActions);
02375
02382 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02383 {
02384 int num = 0;
02385 TownActions buttons = TACT_NONE;
02386
02387
02388 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02389
02390
02391 Money avail = GetCompany(cid)->money + _price.station_value * 200;
02392 Money ref = _price.build_industry >> 8;
02393
02394
02395
02396 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02397 const TownActions cur = (TownActions)(1 << i);
02398
02399
02400 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM))
02401 continue;
02402
02403
02404 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights)
02405 continue;
02406
02407
02408 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid))
02409 continue;
02410
02411 if (avail >= _town_action_costs[i] * ref) {
02412 buttons |= cur;
02413 num++;
02414 }
02415 }
02416 }
02417
02418 if (nump != NULL) *nump = num;
02419 return buttons;
02420 }
02421
02430 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02431 {
02432 if (!IsValidTownID(p1) || p2 > lengthof(_town_action_proc)) return CMD_ERROR;
02433
02434 Town *t = GetTown(p1);
02435
02436 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02437
02438 CommandCost cost(EXPENSES_OTHER, (_price.build_industry >> 8) * _town_action_costs[p2]);
02439
02440 if (flags & DC_EXEC) {
02441 _town_action_proc[p2](t);
02442 InvalidateWindow(WC_TOWN_AUTHORITY, p1);
02443 }
02444
02445 return cost;
02446 }
02447
02448 static void UpdateTownGrowRate(Town *t)
02449 {
02450
02451 const Company *c;
02452 FOR_ALL_COMPANIES(c) {
02453 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02454 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02455 }
02456 }
02457
02458 int n = 0;
02459
02460 const Station *st;
02461 FOR_ALL_STATIONS(st) {
02462 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02463 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02464 n++;
02465 if (IsValidCompanyID(st->owner)) {
02466 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02467 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02468 }
02469 } else {
02470 if (IsValidCompanyID(st->owner)) {
02471 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02472 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02473 }
02474 }
02475 }
02476 }
02477
02478
02479 for (uint i = 0; i < MAX_COMPANIES; i++) {
02480 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02481 }
02482
02483 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02484
02485 ClrBit(t->flags12, TOWN_IS_FUNDED);
02486 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
02487
02490 static const uint16 _grow_count_values[2][6] = {
02491 { 120, 120, 120, 100, 80, 60 },
02492 { 320, 420, 300, 220, 160, 100 }
02493 };
02494
02495 uint16 m;
02496
02497 if (t->fund_buildings_months != 0) {
02498 m = _grow_count_values[0][min(n, 5)];
02499 t->fund_buildings_months--;
02500 } else {
02501 m = _grow_count_values[1][min(n, 5)];
02502 if (n == 0 && !Chance16(1, 12)) return;
02503 }
02504
02505 if (_settings_game.game_creation.landscape == LT_ARCTIC) {
02506 if (TilePixelHeight(t->xy) >= GetSnowLine() && t->act_food == 0 && t->population > 90)
02507 return;
02508 } else if (_settings_game.game_creation.landscape == LT_TROPIC) {
02509 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && (t->act_food == 0 || t->act_water == 0) && t->population > 60)
02510 return;
02511 }
02512
02513
02514
02515 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
02516
02517 m >>= growth_multiplier;
02518 if (t->larger_town) m /= 2;
02519
02520 t->growth_rate = m / (t->num_houses / 50 + 1);
02521 if (m <= t->grow_counter)
02522 t->grow_counter = m;
02523
02524 SetBit(t->flags12, TOWN_IS_FUNDED);
02525 }
02526
02527 static void UpdateTownAmounts(Town *t)
02528 {
02529
02530 t->pct_pass_transported = t->new_act_pass * 256 / (t->new_max_pass + 1);
02531
02532 t->max_pass = t->new_max_pass; t->new_max_pass = 0;
02533 t->act_pass = t->new_act_pass; t->new_act_pass = 0;
02534 t->act_food = t->new_act_food; t->new_act_food = 0;
02535 t->act_water = t->new_act_water; t->new_act_water = 0;
02536
02537
02538 t->pct_mail_transported = t->new_act_mail * 256 / (t->new_max_mail + 1);
02539 t->max_mail = t->new_max_mail; t->new_max_mail = 0;
02540 t->act_mail = t->new_act_mail; t->new_act_mail = 0;
02541
02542 InvalidateWindow(WC_TOWN_VIEW, t->index);
02543 }
02544
02545 static void UpdateTownUnwanted(Town *t)
02546 {
02547 const Company *c;
02548
02549 FOR_ALL_COMPANIES(c) {
02550 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
02551 }
02552 }
02553
02559 bool CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
02560 {
02561 if (!IsValidCompanyID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return true;
02562
02563 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
02564 if (t == NULL) return true;
02565
02566 if (t->ratings[_current_company] > RATING_VERYPOOR) return true;
02567
02568 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02569 SetDParam(0, t->index);
02570
02571 return false;
02572 }
02573
02574
02575 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
02576 {
02577 Town *t;
02578 uint best = threshold;
02579 Town *best_town = NULL;
02580
02581 FOR_ALL_TOWNS(t) {
02582 uint dist = DistanceManhattan(tile, t->xy);
02583 if (dist < best) {
02584 best = dist;
02585 best_town = t;
02586 }
02587 }
02588
02589 return best_town;
02590 }
02591
02592
02593 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
02594 {
02595 switch (GetTileType(tile)) {
02596 case MP_ROAD:
02597 if (!HasTownOwnedRoad(tile)) {
02598 TownID tid = GetTownIndex(tile);
02599 if (tid == (TownID)INVALID_TOWN) {
02600
02601 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
02602 assert(GetNumTowns() == 0);
02603 return NULL;
02604 }
02605
02606 Town *town = GetTown(tid);
02607 assert(town->IsValid());
02608
02609 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
02610
02611 return town;
02612 }
02613
02614
02615 case MP_HOUSE:
02616 return GetTownByTile(tile);
02617
02618 default:
02619 return CalcClosestTownFromTile(tile, threshold);
02620 }
02621 }
02622
02623 static bool _town_rating_test = false;
02624 SmallMap<const Town *, int, 4> _town_test_ratings;
02625
02626 void SetTownRatingTestMode(bool mode)
02627 {
02628 static int ref_count = 0;
02629 if (mode) {
02630 if (ref_count == 0) {
02631 _town_test_ratings.Clear();
02632 }
02633 ref_count++;
02634 } else {
02635 assert(ref_count > 0);
02636 ref_count--;
02637 }
02638 _town_rating_test = !(ref_count == 0);
02639 }
02640
02641 static int GetRating(const Town *t)
02642 {
02643 if (_town_rating_test) {
02644 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
02645 if (it != _town_test_ratings.End()) {
02646 return it->second;
02647 }
02648 }
02649 return t->ratings[_current_company];
02650 }
02651
02659 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
02660 {
02661
02662 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
02663 !IsValidCompanyID(_current_company) ||
02664 (_cheats.magic_bulldozer.value && add < 0)) {
02665 return;
02666 }
02667
02668 int rating = GetRating(t);
02669 if (add < 0) {
02670 if (rating > max) {
02671 rating += add;
02672 if (rating < max) rating = max;
02673 }
02674 } else {
02675 if (rating < max) {
02676 rating += add;
02677 if (rating > max) rating = max;
02678 }
02679 }
02680 if (_town_rating_test) {
02681 _town_test_ratings[t] = rating;
02682 } else {
02683 SetBit(t->have_ratings, _current_company);
02684 t->ratings[_current_company] = rating;
02685 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02686 }
02687 }
02688
02689
02690 static const int _default_rating_settings [3][3] = {
02691
02692 { 0, 128, 384},
02693 { 48, 192, 480},
02694 { 96, 384, 768},
02695 };
02696
02697 bool CheckforTownRating(DoCommandFlag flags, Town *t, byte type)
02698 {
02699
02700 if (t == NULL || !IsValidCompanyID(_current_company) || _cheats.magic_bulldozer.value)
02701 return true;
02702
02703
02704
02705
02706
02707 int modemod = _default_rating_settings[_settings_game.difficulty.town_council_tolerance][type];
02708
02709 if (GetRating(t) < 16 + modemod && !(flags & DC_NO_TEST_TOWN_RATING)) {
02710 SetDParam(0, t->index);
02711 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02712 return false;
02713 }
02714
02715 return true;
02716 }
02717
02718 void TownsMonthlyLoop()
02719 {
02720 Town *t;
02721
02722 FOR_ALL_TOWNS(t) {
02723 if (t->road_build_months != 0) t->road_build_months--;
02724
02725 if (t->exclusive_counter != 0)
02726 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
02727
02728 UpdateTownGrowRate(t);
02729 UpdateTownAmounts(t);
02730 UpdateTownUnwanted(t);
02731 }
02732 }
02733
02734 void TownsYearlyLoop()
02735 {
02736
02737 for (TileIndex t = 0; t < MapSize(); t++) {
02738 if (!IsTileType(t, MP_HOUSE)) continue;
02739 IncrementHouseAge(t);
02740 }
02741 }
02742
02743 void InitializeTowns()
02744 {
02745
02746 _Town_pool.CleanPool();
02747 _Town_pool.AddBlockToPool();
02748
02749 memset(_subsidies, 0, sizeof(_subsidies));
02750 for (Subsidy *s = _subsidies; s != endof(_subsidies); s++) {
02751 s->cargo_type = CT_INVALID;
02752 }
02753
02754 _cur_town_ctr = 0;
02755 _cur_town_iter = 0;
02756 _total_towns = 0;
02757 }
02758
02759 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02760 {
02761 if (AutoslopeEnabled()) {
02762 HouseID house = GetHouseType(tile);
02763 GetHouseNorthPart(house);
02764 const HouseSpec *hs = GetHouseSpecs(house);
02765
02766
02767 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
02768 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
02769 }
02770
02771 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02772 }
02773
02775 extern const TileTypeProcs _tile_type_town_procs = {
02776 DrawTile_Town,
02777 GetSlopeZ_Town,
02778 ClearTile_Town,
02779 GetAcceptedCargo_Town,
02780 GetTileDesc_Town,
02781 GetTileTrackStatus_Town,
02782 ClickTile_Town,
02783 AnimateTile_Town,
02784 TileLoop_Town,
02785 ChangeTileOwner_Town,
02786 GetProducedCargo_Town,
02787 NULL,
02788 GetFoundation_Town,
02789 TerraformTile_Town,
02790 };
02791
02792 void ResetHouses()
02793 {
02794 memset(&_house_specs, 0, sizeof(_house_specs));
02795 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
02796
02797
02798 _house_mngr.ResetOverride();
02799 }