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 uint moved = MoveGoodsToStation(tile, 1, 1, cargo, amt);
00459
00460 const CargoSpec *cs = GetCargo(cargo);
00461 switch (cs->town_effect) {
00462 case TE_PASSENGERS:
00463 t->new_max_pass += amt;
00464 t->new_act_pass += moved;
00465 break;
00466
00467 case TE_MAIL:
00468 t->new_max_mail += amt;
00469 t->new_act_mail += moved;
00470 break;
00471
00472 default:
00473 break;
00474 }
00475 }
00476 } else {
00477 if (GB(r, 0, 8) < hs->population) {
00478 uint amt = GB(r, 0, 8) / 8 + 1;
00479
00480 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00481 t->new_max_pass += amt;
00482 t->new_act_pass += MoveGoodsToStation(tile, 1, 1, CT_PASSENGERS, amt);
00483 }
00484
00485 if (GB(r, 8, 8) < hs->mail_generation) {
00486 uint amt = GB(r, 8, 8) / 8 + 1;
00487
00488 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00489 t->new_max_mail += amt;
00490 t->new_act_mail += MoveGoodsToStation(tile, 1, 1, CT_MAIL, amt);
00491 }
00492 }
00493
00494 _current_company = OWNER_TOWN;
00495
00496 if (hs->building_flags & BUILDING_HAS_1_TILE &&
00497 HasBit(t->flags12, TOWN_IS_FUNDED) &&
00498 CanDeleteHouse(tile) &&
00499 GetHouseAge(tile) >= hs->minimum_life &&
00500 --t->time_until_rebuild == 0) {
00501 t->time_until_rebuild = GB(r, 16, 8) + 192;
00502
00503 ClearTownHouse(t, tile);
00504
00505
00506 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00507 }
00508
00509 _current_company = OWNER_NONE;
00510 }
00511
00516 static bool ClickTile_Town(TileIndex tile)
00517 {
00518
00519 return false;
00520 }
00521
00522 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00523 {
00524 if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
00525 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00526
00527 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00528
00529 CommandCost cost(EXPENSES_CONSTRUCTION);
00530 cost.AddCost(hs->GetRemovalCost());
00531
00532 int rating = hs->remove_rating_decrease;
00533 _cleared_town_rating += rating;
00534 Town *t = _cleared_town = GetTownByTile(tile);
00535
00536 if (IsValidCompanyID(_current_company)) {
00537 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00538 SetDParam(0, t->index);
00539 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00540 }
00541 }
00542
00543 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00544 if (flags & DC_EXEC) {
00545 ClearTownHouse(t, tile);
00546 }
00547
00548 return cost;
00549 }
00550
00551 static void GetProducedCargo_Town(TileIndex tile, CargoID *b)
00552 {
00553 HouseID house_id = GetHouseType(tile);
00554 const HouseSpec *hs = GetHouseSpecs(house_id);
00555 Town *t = GetTownByTile(tile);
00556
00557 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00558 for (uint i = 0; i < 256; i++) {
00559 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00560
00561 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00562
00563 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grffile);
00564
00565 if (cargo == CT_INVALID) continue;
00566 *(b++) = cargo;
00567 }
00568 } else {
00569 if (hs->population > 0) {
00570 *(b++) = CT_PASSENGERS;
00571 }
00572 if (hs->mail_generation > 0) {
00573 *(b++) = CT_MAIL;
00574 }
00575 }
00576 }
00577
00578 static void GetAcceptedCargo_Town(TileIndex tile, AcceptedCargo ac)
00579 {
00580 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00581 CargoID accepts[3];
00582
00583
00584 for (uint8 i = 0; i < lengthof(accepts); i++) {
00585 accepts[i] = hs->accepts_cargo[i];
00586 }
00587
00588
00589 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00590 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00591 if (callback != CALLBACK_FAILED) {
00592
00593 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grffile);
00594 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grffile);
00595 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grffile);
00596 }
00597 }
00598
00599
00600 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00601 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00602 if (callback != CALLBACK_FAILED) {
00603 if (accepts[0] != CT_INVALID) ac[accepts[0]] = GB(callback, 0, 4);
00604 if (accepts[1] != CT_INVALID) ac[accepts[1]] = GB(callback, 4, 4);
00605 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00606
00607 ac[CT_FOOD] = GB(callback, 8, 4);
00608 } else {
00609 if (accepts[2] != CT_INVALID) ac[accepts[2]] = GB(callback, 8, 4);
00610 }
00611 return;
00612 }
00613 }
00614
00615
00616 for (uint8 i = 0; i < lengthof(accepts); i++) {
00617 if (accepts[i] != CT_INVALID) ac[accepts[i]] = hs->cargo_acceptance[i];
00618 }
00619 }
00620
00621 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00622 {
00623 const HouseID house = GetHouseType(tile);
00624 const HouseSpec *hs = GetHouseSpecs(house);
00625 bool house_completed = IsHouseCompleted(tile);
00626
00627 td->str = hs->building_name;
00628
00629 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, GetTownByTile(tile), tile);
00630 if (callback_res != CALLBACK_FAILED) {
00631 StringID new_name = GetGRFStringID(hs->grffile->grfid, 0xD000 + callback_res);
00632 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00633 td->str = new_name;
00634 }
00635 }
00636
00637 if (!house_completed) {
00638 SetDParamX(td->dparam, 0, td->str);
00639 td->str = STR_2058_UNDER_CONSTRUCTION;
00640 }
00641
00642 if (hs->grffile != NULL) {
00643 const GRFConfig *gc = GetGRFConfig(hs->grffile->grfid);
00644 td->grf = gc->name;
00645 }
00646
00647 td->owner[0] = OWNER_TOWN;
00648 }
00649
00650 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00651 {
00652
00653 return 0;
00654 }
00655
00656 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00657 {
00658
00659 }
00660
00661 static bool GrowTown(Town *t);
00662
00663 static void TownTickHandler(Town *t)
00664 {
00665 if (HasBit(t->flags12, TOWN_IS_FUNDED)) {
00666 int i = t->grow_counter - 1;
00667 if (i < 0) {
00668 if (GrowTown(t)) {
00669 i = t->growth_rate;
00670 } else {
00671 i = 0;
00672 }
00673 }
00674 t->grow_counter = i;
00675 }
00676
00677 UpdateTownRadius(t);
00678 }
00679
00680 void OnTick_Town()
00681 {
00682 if (_game_mode == GM_EDITOR) return;
00683
00684
00685
00686 for (_cur_town_iter += GetMaxTownIndex() + 1;
00687 _cur_town_iter >= TOWN_GROWTH_FREQUENCY;
00688 _cur_town_iter -= TOWN_GROWTH_FREQUENCY) {
00689 uint32 i = _cur_town_ctr;
00690
00691 if (++_cur_town_ctr > GetMaxTownIndex())
00692 _cur_town_ctr = 0;
00693
00694 if (IsValidTownID(i)) TownTickHandler(GetTown(i));
00695 }
00696 }
00697
00706 static RoadBits GetTownRoadBits(TileIndex tile)
00707 {
00708 TrackBits b = GetAnyRoadTrackBits(tile, ROADTYPE_ROAD);
00709 RoadBits r = ROAD_NONE;
00710
00711 if (b == TRACK_BIT_NONE) return r;
00712 if (b & TRACK_BIT_X) r |= ROAD_X;
00713 if (b & TRACK_BIT_Y) r |= ROAD_Y;
00714 if (b & TRACK_BIT_UPPER) r |= ROAD_NE | ROAD_NW;
00715 if (b & TRACK_BIT_LOWER) r |= ROAD_SE | ROAD_SW;
00716 if (b & TRACK_BIT_LEFT) r |= ROAD_NW | ROAD_SW;
00717 if (b & TRACK_BIT_RIGHT) r |= ROAD_NE | ROAD_SE;
00718 return r;
00719 }
00720
00731 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00732 {
00733 if (!IsValidTile(tile)) return false;
00734
00735
00736 const TileIndexDiff tid_lt[3] = {
00737 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00738 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00739 TileOffsByDiagDir(ReverseDiagDir(dir)),
00740 };
00741
00742 dist_multi = (dist_multi + 1) * 4;
00743 for (uint pos = 4; pos < dist_multi; pos++) {
00744
00745 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00746
00747
00748 if (pos & 2) cur += tid_lt[2];
00749
00750
00751 if (IsValidTile(tile + cur) &&
00752 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00753 }
00754 return false;
00755 }
00756
00765 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00766 {
00767 if (TileX(tile) < 2 || TileX(tile) >= MapMaxX() || TileY(tile) < 2 || TileY(tile) >= MapMaxY()) return false;
00768
00769 Slope cur_slope, desired_slope;
00770
00771 for (;;) {
00772
00773 if (GetTownRoadBits(tile) == ROAD_NONE) {
00774
00775
00776
00777 if (CmdFailed(DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_X : ROAD_Y), 0, DC_AUTO, CMD_BUILD_ROAD)) &&
00778 CmdFailed(DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR)))
00779 return false;
00780 }
00781
00782 cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile, NULL) : GetTileSlope(tile, NULL);
00783 if (cur_slope == SLOPE_FLAT) {
00784 no_slope:
00785
00786 switch (t->layout) {
00787 default: NOT_REACHED();
00788
00789 case TL_ORIGINAL:
00790 return !IsNeighborRoadTile(tile, dir, 1);
00791
00792 case TL_BETTER_ROADS:
00793 return !IsNeighborRoadTile(tile, dir, 2);
00794 }
00795 }
00796
00797
00798
00799 desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00800 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00801 if (Chance16(1, 8)) {
00802 CommandCost res = CMD_ERROR;
00803 if (!_generating_world && Chance16(1, 10)) {
00804
00805 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00806 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00807 }
00808 if (CmdFailed(res) && Chance16(1, 3)) {
00809
00810 goto no_slope;
00811 }
00812 }
00813 return false;
00814 }
00815 return true;
00816 }
00817 }
00818
00819 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00820 {
00821 assert(tile < MapSize());
00822
00823 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00824 if (CmdFailed(r) || r.GetCost() >= (_price.terraform + 2) * 8) return false;
00825 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00826 return true;
00827 }
00828
00829 static void LevelTownLand(TileIndex tile)
00830 {
00831 assert(tile < MapSize());
00832
00833
00834 if (IsTileType(tile, MP_HOUSE)) return;
00835 Slope tileh = GetTileSlope(tile, NULL);
00836 if (tileh == SLOPE_FLAT) return;
00837
00838
00839 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00840 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00841 }
00842 }
00843
00853 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00854 {
00855
00856 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00857 RoadBits rcmd = ROAD_NONE;
00858
00859 switch (t->layout) {
00860 default: NOT_REACHED();
00861
00862 case TL_2X2_GRID:
00863 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00864 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00865 break;
00866
00867 case TL_3X3_GRID:
00868 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00869 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00870 break;
00871 }
00872
00873
00874 if (rcmd != ROAD_ALL) return rcmd;
00875
00876 RoadBits rb_template;
00877
00878 switch (GetTileSlope(tile, NULL)) {
00879 default: rb_template = ROAD_ALL; break;
00880 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00881 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00882 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00883 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00884 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00885 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00886 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00887 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00888 case SLOPE_STEEP_W:
00889 case SLOPE_STEEP_S:
00890 case SLOPE_STEEP_E:
00891 case SLOPE_STEEP_N:
00892 rb_template = ROAD_NONE;
00893 break;
00894 }
00895
00896
00897 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00898
00899 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00900 }
00901
00912 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00913 {
00914
00915 if (TileX(tile) < 2 || TileY(tile) < 2 || MapMaxX() <= TileX(tile) || MapMaxY() <= TileY(tile)) return false;
00916
00917 uint counter = 0;
00918
00919
00920 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00921
00922 if (IsTileType(TileAddByDiagDir(tile, dir), MP_HOUSE)) counter++;
00923
00924
00925 if (counter >= 3) {
00926 if (BuildTownHouse(t, tile)) {
00927 _grow_town_result = GROWTH_SUCCEED;
00928 return true;
00929 }
00930 return false;
00931 }
00932 }
00933 return false;
00934 }
00935
00944 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
00945 {
00946 if (CmdSucceeded(DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD))) {
00947 _grow_town_result = GROWTH_SUCCEED;
00948 return true;
00949 }
00950 return false;
00951 }
00952
00963 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
00964 {
00965 assert(bridge_dir < DIAGDIR_END);
00966
00967 const Slope slope = GetTileSlope(tile, NULL);
00968 if (slope == SLOPE_FLAT) return false;
00969
00970
00971
00972
00973 if (HASBITS(slope, InclinedSlope(bridge_dir))) return false;
00974
00975
00976 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
00977
00978
00979 uint8 bridge_length = 0;
00980 TileIndex bridge_tile = tile;
00981
00982 const int delta = TileOffsByDiagDir(bridge_dir);
00983 do {
00984 if (bridge_length++ >= 11) {
00985
00986 return false;
00987 }
00988 bridge_tile += delta;
00989 } while (TileX(bridge_tile) != 0 && TileY(bridge_tile) != 0 && IsWaterTile(bridge_tile));
00990
00991
00992 if (bridge_length == 1) return false;
00993
00994 for (uint8 times = 0; times <= 22; times++) {
00995 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
00996
00997
00998 if (CmdSucceeded(DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_AUTO, CMD_BUILD_BRIDGE))) {
00999 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | DC_AUTO, CMD_BUILD_BRIDGE);
01000 _grow_town_result = GROWTH_SUCCEED;
01001 return true;
01002 }
01003 }
01004
01005 return false;
01006 }
01007
01025 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01026 {
01027 RoadBits rcmd = ROAD_NONE;
01028 TileIndex tile = *tile_ptr;
01029
01030 assert(tile < MapSize());
01031
01032 if (cur_rb == ROAD_NONE) {
01033
01034
01035 _grow_town_result = GROWTH_SEARCH_STOPPED;
01036
01037 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01038
01039
01040 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01041
01042
01043 switch (t1->layout) {
01044 default: NOT_REACHED();
01045
01046 case TL_3X3_GRID:
01047 case TL_2X2_GRID:
01048 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01049 if (rcmd == ROAD_NONE) return;
01050 break;
01051
01052 case TL_BETTER_ROADS:
01053 case TL_ORIGINAL:
01054 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01055
01056 DiagDirection source_dir = ReverseDiagDir(target_dir);
01057
01058 if (Chance16(1, 4)) {
01059
01060 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01061 }
01062
01063 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01064
01065
01066 if (target_dir != ReverseDiagDir(source_dir)) return;
01067
01068
01069 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01070 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01071 return;
01072 }
01073
01074
01075
01076 }
01077
01078 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01079 break;
01080 }
01081
01082 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01083
01084
01085
01086 _grow_town_result = GROWTH_SEARCH_STOPPED;
01087
01088 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01089
01090 switch (t1->layout) {
01091 default: NOT_REACHED();
01092
01093 case TL_3X3_GRID:
01094 case TL_2X2_GRID:
01095 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01096 break;
01097
01098 case TL_BETTER_ROADS:
01099 case TL_ORIGINAL:
01100 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01101 break;
01102 }
01103 } else {
01104 bool allow_house = true;
01105
01106
01107 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01108 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
01109 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01110 }
01111 return;
01112 }
01113
01114
01115
01116 target_dir = RandomDiagDir();
01117 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01118
01119
01120 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01121
01122
01123 if (IsWaterTile(house_tile)) return;
01124
01125 if (!IsValidTile(house_tile) || !IsValidTile(house_tile + TileOffsByDiagDir(target_dir))) return;
01126
01127 if (_settings_game.economy.allow_town_roads || _generating_world) {
01128 switch (t1->layout) {
01129 default: NOT_REACHED();
01130
01131 case TL_3X3_GRID:
01132 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01133
01134
01135 case TL_2X2_GRID:
01136 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01137 allow_house = (rcmd == ROAD_NONE);
01138 break;
01139
01140 case TL_BETTER_ROADS:
01141 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01142
01143
01144 case TL_ORIGINAL:
01145
01146
01147 rcmd = DiagDirToRoadBits(target_dir);
01148 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01149 break;
01150 }
01151 }
01152
01153 if (allow_house) {
01154
01155 if (!IsTileType(house_tile, MP_HOUSE)) {
01156
01157 if (Chance16(1, 6)) LevelTownLand(house_tile);
01158
01159
01160
01161 if (BuildTownHouse(t1, house_tile)) {
01162 _grow_town_result = GROWTH_SUCCEED;
01163 }
01164 }
01165 return;
01166 }
01167
01168 _grow_town_result = GROWTH_SEARCH_STOPPED;
01169 }
01170
01171
01172 if (IsWaterTile(tile)) return;
01173
01174
01175 rcmd = CleanUpRoadBits(tile, rcmd);
01176 if (rcmd == ROAD_NONE) return;
01177
01178
01179
01180
01181 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01182
01183 GrowTownWithRoad(t1, tile, rcmd);
01184 }
01185
01191 static int GrowTownAtRoad(Town *t, TileIndex tile)
01192 {
01193
01194
01195
01196 DiagDirection target_dir = DIAGDIR_END;
01197
01198 assert(tile < MapSize());
01199
01200
01201
01202
01203 switch (t->layout) {
01204 case TL_BETTER_ROADS:
01205 _grow_town_result = 10 + t->num_houses * 2 / 9;
01206 break;
01207
01208 case TL_3X3_GRID:
01209 case TL_2X2_GRID:
01210 _grow_town_result = 10 + t->num_houses * 1 / 9;
01211 break;
01212
01213 default:
01214 _grow_town_result = 10 + t->num_houses * 4 / 9;
01215 break;
01216 }
01217
01218 do {
01219 RoadBits cur_rb = GetTownRoadBits(tile);
01220
01221
01222 GrowTownInTile(&tile, cur_rb, target_dir, t);
01223
01224
01225
01226 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01227 if (cur_rb == ROAD_NONE)
01228 return _grow_town_result;
01229
01230
01231
01232 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01233 tile = TileAddByDiagDir(tile, target_dir);
01234
01235 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01236
01237 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && GetTownByTile(tile) != t) {
01238 _grow_town_result = GROWTH_SUCCEED;
01239 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01240
01241
01242 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01243 SetTownIndex(tile, t->index);
01244 }
01245 }
01246
01247
01248 } while (--_grow_town_result >= 0);
01249
01250 return (_grow_town_result == -2);
01251 }
01252
01260 static RoadBits GenRandomRoadBits()
01261 {
01262 uint32 r = Random();
01263 uint a = GB(r, 0, 2);
01264 uint b = GB(r, 8, 2);
01265 if (a == b) b ^= 2;
01266 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01267 }
01268
01273 static bool GrowTown(Town *t)
01274 {
01275 static const TileIndexDiffC _town_coord_mod[] = {
01276 {-1, 0},
01277 { 1, 1},
01278 { 1, -1},
01279 {-1, -1},
01280 {-1, 0},
01281 { 0, 2},
01282 { 2, 0},
01283 { 0, -2},
01284 {-1, -1},
01285 {-2, 2},
01286 { 2, 2},
01287 { 2, -2},
01288 { 0, 0}
01289 };
01290
01291
01292 CompanyID old_company = _current_company;
01293 _current_company = OWNER_TOWN;
01294
01295 TileIndex tile = t->xy;
01296
01297
01298 const TileIndexDiffC *ptr;
01299 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01300 if (GetTownRoadBits(tile) != ROAD_NONE) {
01301 int r = GrowTownAtRoad(t, tile);
01302 _current_company = old_company;
01303 return r != 0;
01304 }
01305 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01306 }
01307
01308
01309
01310 tile = t->xy;
01311 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01312
01313 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile, NULL) == SLOPE_FLAT) {
01314 if (CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR))) {
01315 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01316 _current_company = old_company;
01317 return true;
01318 }
01319 }
01320 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01321 }
01322
01323 _current_company = old_company;
01324 return false;
01325 }
01326
01327 void UpdateTownRadius(Town *t)
01328 {
01329 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01330 { 4, 0, 0, 0, 0},
01331 { 16, 0, 0, 0, 0},
01332 { 25, 0, 0, 0, 0},
01333 { 36, 0, 0, 0, 0},
01334 { 49, 0, 4, 0, 0},
01335 { 64, 0, 4, 0, 0},
01336 { 64, 0, 9, 0, 1},
01337 { 64, 0, 9, 0, 4},
01338 { 64, 0, 16, 0, 4},
01339 { 81, 0, 16, 0, 4},
01340 { 81, 0, 16, 0, 4},
01341 { 81, 0, 25, 0, 9},
01342 { 81, 36, 25, 0, 9},
01343 { 81, 36, 25, 16, 9},
01344 { 81, 49, 0, 25, 9},
01345 { 81, 64, 0, 25, 9},
01346 { 81, 64, 0, 36, 9},
01347 { 81, 64, 0, 36, 16},
01348 {100, 81, 0, 49, 16},
01349 {100, 81, 0, 49, 25},
01350 {121, 81, 0, 49, 25},
01351 {121, 81, 0, 49, 25},
01352 {121, 81, 0, 49, 36},
01353 };
01354
01355 if (t->num_houses < 92) {
01356 memcpy(t->squared_town_zone_radius, _town_squared_town_zone_radius_data[t->num_houses / 4], sizeof(t->squared_town_zone_radius));
01357 } else {
01358 int mass = t->num_houses / 8;
01359
01360
01361
01362 t->squared_town_zone_radius[0] = mass * 15 - 40;
01363 t->squared_town_zone_radius[1] = mass * 9 - 15;
01364 t->squared_town_zone_radius[2] = 0;
01365 t->squared_town_zone_radius[3] = mass * 5 - 5;
01366 t->squared_town_zone_radius[4] = mass * 3 + 5;
01367 }
01368 }
01369
01370 extern int _nb_orig_names;
01371
01376 struct TownNameParams {
01377 bool grf;
01378 uint32 grfid;
01379 uint16 townnametype;
01380
01381 TownNameParams(byte town_name) :
01382 grf(town_name >= _nb_orig_names),
01383 grfid(this->grf ? GetGRFTownNameId(town_name - _nb_orig_names) : 0),
01384 townnametype(this->grf ? GetGRFTownNameType(town_name - _nb_orig_names) : SPECSTR_TOWNNAME_START + town_name)
01385 { }
01386 };
01387
01394 static bool VerifyTownName(uint32 r, const TownNameParams *par)
01395 {
01396
01397 char buf1[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01398 char buf2[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01399
01400 SetDParam(0, r);
01401 if (par->grf && par->grfid != 0) {
01402 GRFTownNameGenerate(buf1, par->grfid, par->townnametype, r, lastof(buf1));
01403 } else {
01404 GetString(buf1, par->townnametype, lastof(buf1));
01405 }
01406
01407
01408 if (strlen(buf1) >= MAX_LENGTH_TOWN_NAME_BYTES) return false;
01409
01410 const Town *t;
01411 FOR_ALL_TOWNS(t) {
01412
01413
01414 SetDParam(0, t->index);
01415 GetString(buf2, STR_TOWN, lastof(buf2));
01416 if (strcmp(buf1, buf2) == 0) return false;
01417 }
01418
01419 return true;
01420 }
01421
01427 bool GenerateTownName(uint32 *townnameparts)
01428 {
01429
01430
01431
01432
01433
01434 int tries = 1000;
01435 TownNameParams par(_settings_game.game_creation.town_name);
01436
01437 assert(townnameparts != NULL);
01438
01439 for (;;) {
01440 uint32 r = InteractiveRandom();
01441
01442 if (!VerifyTownName(r, &par)) {
01443 if (tries-- < 0) return false;
01444 continue;
01445 }
01446
01447 *townnameparts = r;
01448 return true;
01449 }
01450 }
01451
01452 void UpdateTownMaxPass(Town *t)
01453 {
01454 t->max_pass = t->population >> 3;
01455 t->max_mail = t->population >> 4;
01456 }
01457
01467 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01468 {
01469 t->xy = tile;
01470 t->num_houses = 0;
01471 t->time_until_rebuild = 10;
01472 UpdateTownRadius(t);
01473 t->flags12 = 0;
01474 t->population = 0;
01475 t->grow_counter = 0;
01476 t->growth_rate = 250;
01477 t->new_max_pass = 0;
01478 t->new_max_mail = 0;
01479 t->new_act_pass = 0;
01480 t->new_act_mail = 0;
01481 t->max_pass = 0;
01482 t->max_mail = 0;
01483 t->act_pass = 0;
01484 t->act_mail = 0;
01485
01486 t->pct_pass_transported = 0;
01487 t->pct_mail_transported = 0;
01488 t->fund_buildings_months = 0;
01489 t->new_act_food = 0;
01490 t->new_act_water = 0;
01491 t->act_food = 0;
01492 t->act_water = 0;
01493
01494 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01495
01496 t->have_ratings = 0;
01497 t->exclusivity = INVALID_COMPANY;
01498 t->exclusive_counter = 0;
01499 t->statues = 0;
01500
01501 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01502
01503 t->townnamegrfid = 0;
01504 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01505 } else {
01506
01507 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01508 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01509 }
01510 t->townnameparts = townnameparts;
01511
01512 UpdateTownVirtCoord(t);
01513 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01514
01515 t->InitializeLayout(layout);
01516
01517 t->larger_town = city;
01518
01519 int x = (int)size * 16 + 3;
01520 if (size == TS_RANDOM) x = (Random() & 0xF) + 8;
01521 if (city) x *= _settings_game.economy.initial_city_size;
01522
01523 t->num_houses += x;
01524 UpdateTownRadius(t);
01525
01526 int i = x * 4;
01527 do {
01528 GrowTown(t);
01529 } while (--i);
01530
01531 t->num_houses -= x;
01532 UpdateTownRadius(t);
01533 UpdateTownMaxPass(t);
01534 UpdateAirportsNoise();
01535 }
01536
01547 CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01548 {
01549
01550 if (_game_mode != GM_EDITOR) return CMD_ERROR;
01551
01552 TownSize size = (TownSize)GB(p1, 0, 2);
01553 bool city = HasBit(p1, 2);
01554 TownLayout layout = (TownLayout)GB(p1, 3, 3);
01555 TownNameParams par(_settings_game.game_creation.town_name);
01556 uint32 townnameparts = p2;
01557
01558 if (size > TS_RANDOM) return CMD_ERROR;
01559 if (layout > TL_RANDOM) return CMD_ERROR;
01560 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
01561
01562
01563 if (DistanceFromEdge(tile) < 12) {
01564 return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
01565 }
01566
01567
01568 if (IsCloseToTown(tile, 20)) {
01569 return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
01570 }
01571
01572
01573 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
01574 return_cmd_error(STR_0239_SITE_UNSUITABLE);
01575 }
01576
01577
01578 if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
01579
01580
01581 if (flags & DC_EXEC) {
01582 Town *t = new Town(tile);
01583 _generating_world = true;
01584 UpdateNearestTownForRoadTiles(true);
01585 DoCreateTown(t, tile, townnameparts, size, city, layout);
01586 UpdateNearestTownForRoadTiles(false);
01587 _generating_world = false;
01588 }
01589 return CommandCost();
01590 }
01591
01592 Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layout)
01593 {
01594 if (!Town::CanAllocateItem()) return NULL;
01595
01596 do {
01597
01598 TileIndex tile = RandomTile();
01599 switch (layout) {
01600 case TL_2X2_GRID:
01601 tile = TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01602 break;
01603 case TL_3X3_GRID:
01604 tile = TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01605 break;
01606 default: break;
01607 }
01608 if (DistanceFromEdge(tile) < 20) continue;
01609
01610
01611 if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
01612
01613
01614 if (IsCloseToTown(tile, 20)) continue;
01615
01616 uint32 townnameparts;
01617
01618
01619 if (!GenerateTownName(&townnameparts)) break;
01620
01621
01622 Town *t = new Town(tile);
01623
01624 DoCreateTown(t, tile, townnameparts, size, city, layout);
01625 return t;
01626 } while (--attempts != 0);
01627
01628 return NULL;
01629 }
01630
01631 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01632
01633 bool GenerateTowns(TownLayout layout)
01634 {
01635 uint num = 0;
01636 uint n = ScaleByMapSize(_num_initial_towns[_settings_game.difficulty.number_towns] + (Random() & 7));
01637 uint num_cities = _settings_game.economy.larger_towns == 0 ? 0 : n / _settings_game.economy.larger_towns;
01638
01639 SetGeneratingWorldProgress(GWP_TOWN, n);
01640
01641 do {
01642 IncreaseGeneratingWorldProgress(GWP_TOWN);
01643
01644 if (CreateRandomTown(20, TS_RANDOM, num_cities > 0, layout) != NULL) num++;
01645 if (num_cities > 0) num_cities--;
01646 } while (--n);
01647
01648
01649 if (num == 0 && CreateRandomTown(10000, TS_RANDOM, false, layout) == NULL) {
01650 if (GetNumTowns() == 0) {
01651
01652 if (_game_mode != GM_EDITOR) usererror("Could not generate any town");
01653
01654 return false;
01655 }
01656 }
01657
01658 return true;
01659 }
01660
01661
01667 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01668 {
01669 uint dist = DistanceSquare(tile, t->xy);
01670
01671 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01672
01673 HouseZonesBits smallest = HZB_TOWN_EDGE;
01674 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01675 if (dist < t->squared_town_zone_radius[i]) smallest = i;
01676 }
01677
01678 return smallest;
01679 }
01680
01691 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01692 {
01693 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01694
01695 assert(CmdSucceeded(cc));
01696
01697 IncreaseBuildingCount(t, type);
01698 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01699 if (GetHouseSpecs(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01700
01701 MarkTileDirtyByTile(tile);
01702 }
01703
01704
01715 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01716 {
01717 BuildingFlags size = GetHouseSpecs(type)->building_flags;
01718
01719 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01720 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01721 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01722 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01723 }
01724
01725
01734 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01735 {
01736
01737 Slope slope = GetTileSlope(tile, NULL);
01738 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01739
01740
01741 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01742
01743
01744 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01745
01746
01747 return CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR));
01748 }
01749
01750
01760 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, uint z, bool noslope)
01761 {
01762 if (!CanBuildHouseHere(tile, town, noslope)) return false;
01763
01764
01765 if (GetTileMaxZ(tile) != z) return false;
01766
01767 return true;
01768 }
01769
01770
01780 static bool CheckFree2x2Area(TileIndex tile, TownID town, uint z, bool noslope)
01781 {
01782
01783 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01784
01785 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
01786 tile += TileOffsByDiagDir(d);
01787 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01788 }
01789
01790 return true;
01791 }
01792
01793
01801 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
01802 {
01803
01804 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01805
01806 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
01807
01808 switch (t->layout) {
01809 case TL_2X2_GRID:
01810 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
01811 break;
01812
01813 case TL_3X3_GRID:
01814 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
01815 break;
01816
01817 default:
01818 break;
01819 }
01820
01821 return true;
01822 }
01823
01824
01832 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
01833 {
01834
01835 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01836
01837
01838
01839 uint dx = MapSize() + TileX(t->xy) - TileX(tile);
01840 uint dy = MapSize() + TileY(t->xy) - TileY(tile);
01841
01842 switch (t->layout) {
01843 case TL_2X2_GRID:
01844 if ((dx % 3) != 0 || (dy % 3) != 0) return false;
01845 break;
01846
01847 case TL_3X3_GRID:
01848 if ((dx % 4) < 2 || (dy % 4) < 2) return false;
01849 break;
01850
01851 default:
01852 break;
01853 }
01854
01855 return true;
01856 }
01857
01858
01868 static bool CheckTownBuild2House(TileIndex *tile, Town *t, uint maxz, bool noslope, DiagDirection second)
01869 {
01870
01871
01872 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
01873 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
01874
01875 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
01876 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
01877 *tile = tile2;
01878 return true;
01879 }
01880
01881 return false;
01882 }
01883
01884
01893 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, uint maxz, bool noslope)
01894 {
01895 TileIndex tile2 = *tile;
01896
01897 for (DiagDirection d = DIAGDIR_SE;;d++) {
01898 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
01899 *tile = tile2;
01900 return true;
01901 }
01902 if (d == DIAGDIR_END) break;
01903 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
01904 }
01905
01906 return false;
01907 }
01908
01909
01916 static bool BuildTownHouse(Town *t, TileIndex tile)
01917 {
01918
01919 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
01920
01921
01922 if (!CanBuildHouseHere(tile, t->index, false)) return false;
01923
01924 uint z;
01925 Slope slope = GetTileSlope(tile, &z);
01926
01927
01928
01929 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
01930
01931
01932 int land = _settings_game.game_creation.landscape;
01933 if (land == LT_ARCTIC && z >= _settings_game.game_creation.snow_line) land = -1;
01934
01935 uint bitmask = (1 << rad) + (1 << (land + 12));
01936
01937
01938
01939
01940 HouseID houses[HOUSE_MAX];
01941 uint num = 0;
01942 uint probs[HOUSE_MAX];
01943 uint probability_max = 0;
01944
01945
01946 for (uint i = 0; i < HOUSE_MAX; i++) {
01947 const HouseSpec *hs = GetHouseSpecs(i);
01948
01949 if ((~hs->building_availability & bitmask) == 0 && hs->enabled) {
01950
01951 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
01952 probability_max += cur_prob;
01953 probs[num] = cur_prob;
01954 houses[num++] = (HouseID)i;
01955 }
01956 }
01957
01958 uint maxz = GetTileMaxZ(tile);
01959
01960 while (probability_max > 0) {
01961 uint r = RandomRange(probability_max);
01962 uint i;
01963 for (i = 0; i < num; i++) {
01964 if (probs[i] > r) break;
01965 r -= probs[i];
01966 }
01967
01968 HouseID house = houses[i];
01969 probability_max -= probs[i];
01970
01971
01972 num--;
01973 houses[i] = houses[num];
01974 probs[i] = probs[num];
01975
01976 const HouseSpec *hs = GetHouseSpecs(house);
01977
01978 if (_loaded_newgrf_features.has_newhouses) {
01979 if (hs->override != 0) {
01980 house = hs->override;
01981 hs = GetHouseSpecs(house);
01982 }
01983
01984 if ((hs->extra_flags & BUILDING_IS_HISTORICAL) && !_generating_world && _game_mode != GM_EDITOR) continue;
01985 }
01986
01987 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
01988
01989
01990 uint oneof = 0;
01991
01992 if (hs->building_flags & BUILDING_IS_CHURCH) {
01993 SetBit(oneof, TOWN_HAS_CHURCH);
01994 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
01995 SetBit(oneof, TOWN_HAS_STADIUM);
01996 }
01997
01998 if (HASBITS(t->flags12, oneof)) continue;
01999
02000
02001 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02002 if (noslope && slope != SLOPE_FLAT) continue;
02003
02004 if (hs->building_flags & TILE_SIZE_2x2) {
02005 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02006 } else if (hs->building_flags & TILE_SIZE_2x1) {
02007 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02008 } else if (hs->building_flags & TILE_SIZE_1x2) {
02009 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02010 } else {
02011
02012 }
02013
02014 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02015 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile);
02016 if (callback_res != CALLBACK_FAILED && GB(callback_res, 0, 8) == 0) continue;
02017 }
02018
02019
02020 t->num_houses++;
02021
02022
02023 t->flags12 |= oneof;
02024
02025 byte construction_counter = 0;
02026 byte construction_stage = 0;
02027
02028 if (_generating_world || _game_mode == GM_EDITOR) {
02029 uint32 r = Random();
02030
02031 construction_stage = TOWN_HOUSE_COMPLETED;
02032 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02033
02034 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02035 ChangePopulation(t, hs->population);
02036 } else {
02037 construction_counter = GB(r, 2, 2);
02038 }
02039 }
02040
02041 MakeTownHouse(tile, t, construction_counter, construction_stage, house, Random());
02042
02043 return true;
02044 }
02045
02046 return false;
02047 }
02048
02055 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02056 {
02057 assert(IsTileType(tile, MP_HOUSE));
02058 DecreaseBuildingCount(t, house);
02059 DoClearSquare(tile);
02060 DeleteAnimatedTile(tile);
02061 }
02062
02070 TileIndexDiff GetHouseNorthPart(HouseID &house)
02071 {
02072 if (house >= 3) {
02073 if (GetHouseSpecs(house - 1)->building_flags & TILE_SIZE_2x1) {
02074 house--;
02075 return TileDiffXY(-1, 0);
02076 } else if (GetHouseSpecs(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02077 house--;
02078 return TileDiffXY(0, -1);
02079 } else if (GetHouseSpecs(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02080 house -= 2;
02081 return TileDiffXY(-1, 0);
02082 } else if (GetHouseSpecs(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02083 house -= 3;
02084 return TileDiffXY(-1, -1);
02085 }
02086 }
02087 return 0;
02088 }
02089
02090 void ClearTownHouse(Town *t, TileIndex tile)
02091 {
02092 assert(IsTileType(tile, MP_HOUSE));
02093
02094 HouseID house = GetHouseType(tile);
02095
02096
02097 tile += GetHouseNorthPart(house);
02098
02099 const HouseSpec *hs = GetHouseSpecs(house);
02100
02101
02102 if (IsHouseCompleted(tile)) {
02103 ChangePopulation(t, -hs->population);
02104 }
02105
02106 t->num_houses--;
02107
02108
02109 if (hs->building_flags & BUILDING_IS_CHURCH) {
02110 ClrBit(t->flags12, TOWN_HAS_CHURCH);
02111 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02112 ClrBit(t->flags12, TOWN_HAS_STADIUM);
02113 }
02114
02115
02116 uint eflags = hs->building_flags;
02117 DoClearTownHouseHelper(tile, t, house);
02118 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02119 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02120 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02121 }
02122
02123 static bool IsUniqueTownName(const char *name)
02124 {
02125 const Town *t;
02126
02127 FOR_ALL_TOWNS(t) {
02128 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
02129 }
02130
02131 return true;
02132 }
02133
02140 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02141 {
02142 if (!IsValidTownID(p1)) return CMD_ERROR;
02143
02144 bool reset = StrEmpty(text);
02145
02146 if (!reset) {
02147 if (strlen(text) >= MAX_LENGTH_TOWN_NAME_BYTES) return CMD_ERROR;
02148 if (!IsUniqueTownName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
02149 }
02150
02151 if (flags & DC_EXEC) {
02152 Town *t = GetTown(p1);
02153
02154 free(t->name);
02155 t->name = reset ? NULL : strdup(text);
02156
02157 UpdateTownVirtCoord(t);
02158 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02159 UpdateAllStationVirtCoord();
02160 UpdateAllWaypointSigns();
02161 MarkWholeScreenDirty();
02162 }
02163 return CommandCost();
02164 }
02165
02167 void ExpandTown(Town *t)
02168 {
02169
02170
02171 static bool warned_no_roads = false;
02172 if (!_settings_game.economy.allow_town_roads && !warned_no_roads) {
02173 ShowErrorMessage(INVALID_STRING_ID, STR_TOWN_EXPAND_WARN_NO_ROADS, 0, 0);
02174 warned_no_roads = true;
02175 }
02176
02177
02178 uint amount = RandomRange(ClampToU16(t->num_houses / 10)) + 3;
02179 t->num_houses += amount;
02180 UpdateTownRadius(t);
02181
02182 uint n = amount * 10;
02183 do GrowTown(t); while (--n);
02184
02185 t->num_houses -= amount;
02186 UpdateTownRadius(t);
02187
02188 UpdateTownMaxPass(t);
02189 }
02190
02191 extern const byte _town_action_costs[8] = {
02192 2, 4, 9, 35, 48, 53, 117, 175
02193 };
02194
02195 static void TownActionAdvertiseSmall(Town *t)
02196 {
02197 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02198 }
02199
02200 static void TownActionAdvertiseMedium(Town *t)
02201 {
02202 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02203 }
02204
02205 static void TownActionAdvertiseLarge(Town *t)
02206 {
02207 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02208 }
02209
02210 static void TownActionRoadRebuild(Town *t)
02211 {
02212 t->road_build_months = 6;
02213
02214 char company_name[MAX_LENGTH_COMPANY_NAME_BYTES];
02215 SetDParam(0, _current_company);
02216 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02217
02218 char *cn = strdup(company_name);
02219 SetDParam(0, t->index);
02220 SetDParamStr(1, cn);
02221
02222 AddNewsItem(STR_2055_TRAFFIC_CHAOS_IN_ROAD_REBUILDING, NS_GENERAL, t->xy, 0, cn);
02223 }
02224
02225 static bool DoBuildStatueOfCompany(TileIndex tile, TownID town_id)
02226 {
02227
02228 if (IsSteepSlope(GetTileSlope(tile, NULL))) return false;
02229
02230 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02231
02232 if (!IsTileType(tile, MP_HOUSE) &&
02233 !IsTileType(tile, MP_CLEAR) &&
02234 !IsTileType(tile, MP_TREES)) {
02235 return false;
02236 }
02237
02238 CompanyID old = _current_company;
02239 _current_company = OWNER_NONE;
02240 CommandCost r = DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02241 _current_company = old;
02242
02243 if (CmdFailed(r)) return false;
02244
02245 MakeStatue(tile, _current_company, town_id);
02246 MarkTileDirtyByTile(tile);
02247
02248 return true;
02249 }
02250
02257 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02258 {
02259 TownID *town_id = (TownID *)user_data;
02260 return DoBuildStatueOfCompany(tile, *town_id);
02261 }
02262
02268 static void TownActionBuildStatue(Town *t)
02269 {
02270 TileIndex tile = t->xy;
02271
02272 if (CircularTileSearch(&tile, 9, SearchTileForStatue, &t->index)) {
02273 SetBit(t->statues, _current_company);
02274 }
02275 }
02276
02277 static void TownActionFundBuildings(Town *t)
02278 {
02279
02280 t->grow_counter = 1;
02281
02282 SetBit(t->flags12, TOWN_IS_FUNDED);
02283
02284 t->fund_buildings_months = 3;
02285 }
02286
02287 static void TownActionBuyRights(Town *t)
02288 {
02289
02290 if (!_settings_game.economy.exclusive_rights) return;
02291
02292 t->exclusive_counter = 12;
02293 t->exclusivity = _current_company;
02294
02295 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02296 }
02297
02298 static void TownActionBribe(Town *t)
02299 {
02300 if (Chance16(1, 14)) {
02301
02302 t->unwanted[_current_company] = 6;
02303
02304
02305 Station *st;
02306 FOR_ALL_STATIONS(st) {
02307 if (st->town == t && st->owner == _current_company) {
02308 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02309 }
02310 }
02311
02312
02313
02314 if (IsLocalCompany()) ShowErrorMessage(STR_BRIBE_FAILED_2, STR_BRIBE_FAILED, 0, 0);
02315
02316
02317
02318
02319
02320 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02321 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02322 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02323 }
02324 } else {
02325 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02326 }
02327 }
02328
02329 typedef void TownActionProc(Town *t);
02330 static TownActionProc *const _town_action_proc[] = {
02331 TownActionAdvertiseSmall,
02332 TownActionAdvertiseMedium,
02333 TownActionAdvertiseLarge,
02334 TownActionRoadRebuild,
02335 TownActionBuildStatue,
02336 TownActionFundBuildings,
02337 TownActionBuyRights,
02338 TownActionBribe
02339 };
02340
02341 enum TownActions {
02342 TACT_NONE = 0x00,
02343
02344 TACT_ADVERTISE_SMALL = 0x01,
02345 TACT_ADVERTISE_MEDIUM = 0x02,
02346 TACT_ADVERTISE_LARGE = 0x04,
02347 TACT_ROAD_REBUILD = 0x08,
02348 TACT_BUILD_STATUE = 0x10,
02349 TACT_FOUND_BUILDINGS = 0x20,
02350 TACT_BUY_RIGHTS = 0x40,
02351 TACT_BRIBE = 0x80,
02352
02353 TACT_ADVERTISE = TACT_ADVERTISE_SMALL | TACT_ADVERTISE_MEDIUM | TACT_ADVERTISE_LARGE,
02354 TACT_CONSTRUCTION = TACT_ROAD_REBUILD | TACT_BUILD_STATUE | TACT_FOUND_BUILDINGS,
02355 TACT_FUNDS = TACT_BUY_RIGHTS | TACT_BRIBE,
02356 TACT_ALL = TACT_ADVERTISE | TACT_CONSTRUCTION | TACT_FUNDS,
02357 };
02358
02359 DECLARE_ENUM_AS_BIT_SET(TownActions);
02360
02367 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02368 {
02369 int num = 0;
02370 TownActions buttons = TACT_NONE;
02371
02372
02373 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02374
02375
02376 Money avail = GetCompany(cid)->money + _price.station_value * 200;
02377 Money ref = _price.build_industry >> 8;
02378
02379
02380
02381 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02382 const TownActions cur = (TownActions)(1 << i);
02383
02384
02385 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM))
02386 continue;
02387
02388
02389 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights)
02390 continue;
02391
02392
02393 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid))
02394 continue;
02395
02396 if (avail >= _town_action_costs[i] * ref) {
02397 buttons |= cur;
02398 num++;
02399 }
02400 }
02401 }
02402
02403 if (nump != NULL) *nump = num;
02404 return buttons;
02405 }
02406
02415 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02416 {
02417 if (!IsValidTownID(p1) || p2 > lengthof(_town_action_proc)) return CMD_ERROR;
02418
02419 Town *t = GetTown(p1);
02420
02421 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02422
02423 CommandCost cost(EXPENSES_OTHER, (_price.build_industry >> 8) * _town_action_costs[p2]);
02424
02425 if (flags & DC_EXEC) {
02426 _town_action_proc[p2](t);
02427 InvalidateWindow(WC_TOWN_AUTHORITY, p1);
02428 }
02429
02430 return cost;
02431 }
02432
02433 static void UpdateTownGrowRate(Town *t)
02434 {
02435
02436 const Company *c;
02437 FOR_ALL_COMPANIES(c) {
02438 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02439 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02440 }
02441 }
02442
02443 int n = 0;
02444
02445 const Station *st;
02446 FOR_ALL_STATIONS(st) {
02447 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02448 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02449 n++;
02450 if (IsValidCompanyID(st->owner)) {
02451 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02452 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02453 }
02454 } else {
02455 if (IsValidCompanyID(st->owner)) {
02456 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02457 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02458 }
02459 }
02460 }
02461 }
02462
02463
02464 for (uint i = 0; i < MAX_COMPANIES; i++) {
02465 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02466 }
02467
02468 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02469
02470 ClrBit(t->flags12, TOWN_IS_FUNDED);
02471 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
02472
02475 static const uint16 _grow_count_values[2][6] = {
02476 { 120, 120, 120, 100, 80, 60 },
02477 { 320, 420, 300, 220, 160, 100 }
02478 };
02479
02480 uint16 m;
02481
02482 if (t->fund_buildings_months != 0) {
02483 m = _grow_count_values[0][min(n, 5)];
02484 t->fund_buildings_months--;
02485 } else {
02486 m = _grow_count_values[1][min(n, 5)];
02487 if (n == 0 && !Chance16(1, 12)) return;
02488 }
02489
02490 if (_settings_game.game_creation.landscape == LT_ARCTIC) {
02491 if (TilePixelHeight(t->xy) >= GetSnowLine() && t->act_food == 0 && t->population > 90)
02492 return;
02493 } else if (_settings_game.game_creation.landscape == LT_TROPIC) {
02494 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && (t->act_food == 0 || t->act_water == 0) && t->population > 60)
02495 return;
02496 }
02497
02498
02499
02500 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
02501
02502 m >>= growth_multiplier;
02503 if (t->larger_town) m /= 2;
02504
02505 t->growth_rate = m / (t->num_houses / 50 + 1);
02506 if (m <= t->grow_counter)
02507 t->grow_counter = m;
02508
02509 SetBit(t->flags12, TOWN_IS_FUNDED);
02510 }
02511
02512 static void UpdateTownAmounts(Town *t)
02513 {
02514
02515 t->pct_pass_transported = t->new_act_pass * 256 / (t->new_max_pass + 1);
02516
02517 t->max_pass = t->new_max_pass; t->new_max_pass = 0;
02518 t->act_pass = t->new_act_pass; t->new_act_pass = 0;
02519 t->act_food = t->new_act_food; t->new_act_food = 0;
02520 t->act_water = t->new_act_water; t->new_act_water = 0;
02521
02522
02523 t->pct_mail_transported = t->new_act_mail * 256 / (t->new_max_mail + 1);
02524 t->max_mail = t->new_max_mail; t->new_max_mail = 0;
02525 t->act_mail = t->new_act_mail; t->new_act_mail = 0;
02526
02527 InvalidateWindow(WC_TOWN_VIEW, t->index);
02528 }
02529
02530 static void UpdateTownUnwanted(Town *t)
02531 {
02532 const Company *c;
02533
02534 FOR_ALL_COMPANIES(c) {
02535 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
02536 }
02537 }
02538
02544 bool CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
02545 {
02546 if (!IsValidCompanyID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return true;
02547
02548 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
02549 if (t == NULL) return true;
02550
02551 if (t->ratings[_current_company] > RATING_VERYPOOR) return true;
02552
02553 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02554 SetDParam(0, t->index);
02555
02556 return false;
02557 }
02558
02559
02560 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
02561 {
02562 Town *t;
02563 uint best = threshold;
02564 Town *best_town = NULL;
02565
02566 FOR_ALL_TOWNS(t) {
02567 uint dist = DistanceManhattan(tile, t->xy);
02568 if (dist < best) {
02569 best = dist;
02570 best_town = t;
02571 }
02572 }
02573
02574 return best_town;
02575 }
02576
02577
02578 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
02579 {
02580 switch (GetTileType(tile)) {
02581 case MP_ROAD:
02582 if (!HasTownOwnedRoad(tile)) {
02583 TownID tid = GetTownIndex(tile);
02584 if (tid == (TownID)INVALID_TOWN) {
02585
02586 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
02587 assert(GetNumTowns() == 0);
02588 return NULL;
02589 }
02590
02591 Town *town = GetTown(tid);
02592 assert(town->IsValid());
02593 assert(town == CalcClosestTownFromTile(tile));
02594
02595 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
02596
02597 return town;
02598 }
02599
02600
02601 case MP_HOUSE:
02602 return GetTownByTile(tile);
02603
02604 default:
02605 return CalcClosestTownFromTile(tile, threshold);
02606 }
02607 }
02608
02609 static bool _town_rating_test = false;
02610 SmallMap<const Town *, int, 4> _town_test_ratings;
02611
02612 void SetTownRatingTestMode(bool mode)
02613 {
02614 static int ref_count = 0;
02615 if (mode) {
02616 if (ref_count == 0) {
02617 _town_test_ratings.Clear();
02618 }
02619 ref_count++;
02620 } else {
02621 assert(ref_count > 0);
02622 ref_count--;
02623 }
02624 _town_rating_test = !(ref_count == 0);
02625 }
02626
02627 static int GetRating(const Town *t)
02628 {
02629 if (_town_rating_test) {
02630 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
02631 if (it != _town_test_ratings.End()) {
02632 return it->second;
02633 }
02634 }
02635 return t->ratings[_current_company];
02636 }
02637
02645 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
02646 {
02647
02648 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
02649 !IsValidCompanyID(_current_company) ||
02650 (_cheats.magic_bulldozer.value && add < 0)) {
02651 return;
02652 }
02653
02654 SetBit(t->have_ratings, _current_company);
02655
02656 int rating = GetRating(t);
02657 if (add < 0) {
02658 if (rating > max) {
02659 rating += add;
02660 if (rating < max) rating = max;
02661 }
02662 } else {
02663 if (rating < max) {
02664 rating += add;
02665 if (rating > max) rating = max;
02666 }
02667 }
02668 if (_town_rating_test) {
02669 _town_test_ratings[t] = rating;
02670 } else {
02671 t->ratings[_current_company] = rating;
02672 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02673 }
02674 }
02675
02676
02677 static const int _default_rating_settings [3][3] = {
02678
02679 { 0, 128, 384},
02680 { 48, 192, 480},
02681 { 96, 384, 768},
02682 };
02683
02684 bool CheckforTownRating(DoCommandFlag flags, Town *t, byte type)
02685 {
02686
02687 if (t == NULL || !IsValidCompanyID(_current_company) || _cheats.magic_bulldozer.value)
02688 return true;
02689
02690
02691
02692
02693
02694 int modemod = _default_rating_settings[_settings_game.difficulty.town_council_tolerance][type];
02695
02696 if (GetRating(t) < 16 + modemod && !(flags & DC_NO_TEST_TOWN_RATING)) {
02697 SetDParam(0, t->index);
02698 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02699 return false;
02700 }
02701
02702 return true;
02703 }
02704
02705 void TownsMonthlyLoop()
02706 {
02707 Town *t;
02708
02709 FOR_ALL_TOWNS(t) {
02710 if (t->road_build_months != 0) t->road_build_months--;
02711
02712 if (t->exclusive_counter != 0)
02713 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
02714
02715 UpdateTownGrowRate(t);
02716 UpdateTownAmounts(t);
02717 UpdateTownUnwanted(t);
02718 }
02719 }
02720
02721 void TownsYearlyLoop()
02722 {
02723
02724 for (TileIndex t = 0; t < MapSize(); t++) {
02725 if (!IsTileType(t, MP_HOUSE)) continue;
02726 IncrementHouseAge(t);
02727 }
02728 }
02729
02730 void InitializeTowns()
02731 {
02732
02733 _Town_pool.CleanPool();
02734 _Town_pool.AddBlockToPool();
02735
02736 memset(_subsidies, 0, sizeof(_subsidies));
02737 for (Subsidy *s = _subsidies; s != endof(_subsidies); s++) {
02738 s->cargo_type = CT_INVALID;
02739 }
02740
02741 _cur_town_ctr = 0;
02742 _cur_town_iter = 0;
02743 _total_towns = 0;
02744 }
02745
02746 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02747 {
02748 if (AutoslopeEnabled()) {
02749 HouseID house = GetHouseType(tile);
02750 GetHouseNorthPart(house);
02751 const HouseSpec *hs = GetHouseSpecs(house);
02752
02753
02754 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
02755 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
02756 }
02757
02758 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02759 }
02760
02762 extern const TileTypeProcs _tile_type_town_procs = {
02763 DrawTile_Town,
02764 GetSlopeZ_Town,
02765 ClearTile_Town,
02766 GetAcceptedCargo_Town,
02767 GetTileDesc_Town,
02768 GetTileTrackStatus_Town,
02769 ClickTile_Town,
02770 AnimateTile_Town,
02771 TileLoop_Town,
02772 ChangeTileOwner_Town,
02773 GetProducedCargo_Town,
02774 NULL,
02775 GetFoundation_Town,
02776 TerraformTile_Town,
02777 };
02778
02779 void ResetHouses()
02780 {
02781 memset(&_house_specs, 0, sizeof(_house_specs));
02782 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
02783
02784
02785 _house_mngr.ResetOverride();
02786 }