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 uint32 grfid;
01378 uint16 townnametype;
01379 bool grf;
01380
01381 TownNameParams(byte town_name)
01382 {
01383 this->grf = town_name >= _nb_orig_names;
01384 this->grfid = this->grf ? GetGRFTownNameId(town_name - _nb_orig_names) : 0;
01385 this->townnametype = this->grf ? GetGRFTownNameType(town_name - _nb_orig_names) : SPECSTR_TOWNNAME_START + town_name;
01386 }
01387 };
01388
01395 static bool VerifyTownName(uint32 r, const TownNameParams *par)
01396 {
01397
01398 char buf1[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01399 char buf2[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01400
01401 SetDParam(0, r);
01402 if (par->grf && par->grfid != 0) {
01403 GRFTownNameGenerate(buf1, par->grfid, par->townnametype, r, lastof(buf1));
01404 } else {
01405 GetString(buf1, par->townnametype, lastof(buf1));
01406 }
01407
01408
01409 if (strlen(buf1) >= MAX_LENGTH_TOWN_NAME_BYTES) return false;
01410
01411 const Town *t;
01412 FOR_ALL_TOWNS(t) {
01413
01414
01415 SetDParam(0, t->index);
01416 GetString(buf2, STR_TOWN, lastof(buf2));
01417 if (strcmp(buf1, buf2) == 0) return false;
01418 }
01419
01420 return true;
01421 }
01422
01428 bool GenerateTownName(uint32 *townnameparts)
01429 {
01430
01431
01432
01433
01434
01435 int tries = 1000;
01436 TownNameParams par(_settings_game.game_creation.town_name);
01437
01438 assert(townnameparts != NULL);
01439
01440 for (;;) {
01441 uint32 r = InteractiveRandom();
01442
01443 if (!VerifyTownName(r, &par)) {
01444 if (tries-- < 0) return false;
01445 continue;
01446 }
01447
01448 *townnameparts = r;
01449 return true;
01450 }
01451 }
01452
01453 void UpdateTownMaxPass(Town *t)
01454 {
01455 t->max_pass = t->population >> 3;
01456 t->max_mail = t->population >> 4;
01457 }
01458
01468 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01469 {
01470 t->xy = tile;
01471 t->num_houses = 0;
01472 t->time_until_rebuild = 10;
01473 UpdateTownRadius(t);
01474 t->flags12 = 0;
01475 t->population = 0;
01476 t->grow_counter = 0;
01477 t->growth_rate = 250;
01478 t->new_max_pass = 0;
01479 t->new_max_mail = 0;
01480 t->new_act_pass = 0;
01481 t->new_act_mail = 0;
01482 t->max_pass = 0;
01483 t->max_mail = 0;
01484 t->act_pass = 0;
01485 t->act_mail = 0;
01486
01487 t->pct_pass_transported = 0;
01488 t->pct_mail_transported = 0;
01489 t->fund_buildings_months = 0;
01490 t->new_act_food = 0;
01491 t->new_act_water = 0;
01492 t->act_food = 0;
01493 t->act_water = 0;
01494
01495 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01496
01497 t->have_ratings = 0;
01498 t->exclusivity = INVALID_COMPANY;
01499 t->exclusive_counter = 0;
01500 t->statues = 0;
01501
01502 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01503
01504 t->townnamegrfid = 0;
01505 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01506 } else {
01507
01508 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01509 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01510 }
01511 t->townnameparts = townnameparts;
01512
01513 UpdateTownVirtCoord(t);
01514 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01515
01516 t->InitializeLayout(layout);
01517
01518 t->larger_town = city;
01519
01520 int x = (int)size * 16 + 3;
01521 if (size == TS_RANDOM) x = (Random() & 0xF) + 8;
01522 if (city) x *= _settings_game.economy.initial_city_size;
01523
01524 t->num_houses += x;
01525 UpdateTownRadius(t);
01526
01527 int i = x * 4;
01528 do {
01529 GrowTown(t);
01530 } while (--i);
01531
01532 t->num_houses -= x;
01533 UpdateTownRadius(t);
01534 UpdateTownMaxPass(t);
01535 UpdateAirportsNoise();
01536 }
01537
01548 CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01549 {
01550
01551 if (_game_mode != GM_EDITOR) return CMD_ERROR;
01552
01553 TownSize size = (TownSize)GB(p1, 0, 2);
01554 bool city = HasBit(p1, 2);
01555 TownLayout layout = (TownLayout)GB(p1, 3, 3);
01556 TownNameParams par(_settings_game.game_creation.town_name);
01557 uint32 townnameparts = p2;
01558
01559 if (size > TS_RANDOM) return CMD_ERROR;
01560 if (layout > TL_RANDOM) return CMD_ERROR;
01561 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
01562
01563
01564 if (DistanceFromEdge(tile) < 12) {
01565 return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
01566 }
01567
01568
01569 if (IsCloseToTown(tile, 20)) {
01570 return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
01571 }
01572
01573
01574 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
01575 return_cmd_error(STR_0239_SITE_UNSUITABLE);
01576 }
01577
01578
01579 if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
01580
01581
01582 if (flags & DC_EXEC) {
01583 Town *t = new Town(tile);
01584 _generating_world = true;
01585 UpdateNearestTownForRoadTiles(true);
01586 DoCreateTown(t, tile, townnameparts, size, city, layout);
01587 UpdateNearestTownForRoadTiles(false);
01588 _generating_world = false;
01589 }
01590 return CommandCost();
01591 }
01592
01593 Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layout)
01594 {
01595 if (!Town::CanAllocateItem()) return NULL;
01596
01597 do {
01598
01599 TileIndex tile = RandomTile();
01600 switch (layout) {
01601 case TL_2X2_GRID:
01602 tile = TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01603 break;
01604 case TL_3X3_GRID:
01605 tile = TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01606 break;
01607 default: break;
01608 }
01609 if (DistanceFromEdge(tile) < 20) continue;
01610
01611
01612 if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
01613
01614
01615 if (IsCloseToTown(tile, 20)) continue;
01616
01617 uint32 townnameparts;
01618
01619
01620 if (!GenerateTownName(&townnameparts)) break;
01621
01622
01623 Town *t = new Town(tile);
01624
01625 DoCreateTown(t, tile, townnameparts, size, city, layout);
01626 return t;
01627 } while (--attempts != 0);
01628
01629 return NULL;
01630 }
01631
01632 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01633
01634 bool GenerateTowns(TownLayout layout)
01635 {
01636 uint num = 0;
01637 uint difficulty = _settings_game.difficulty.number_towns;
01638 uint n = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01639
01640 SetGeneratingWorldProgress(GWP_TOWN, n);
01641
01642 do {
01643 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01644 IncreaseGeneratingWorldProgress(GWP_TOWN);
01645
01646 if (CreateRandomTown(20, TS_RANDOM, city, layout) != NULL) num++;
01647 } while (--n);
01648
01649
01650 if (num == 0 && CreateRandomTown(10000, TS_RANDOM, _settings_game.economy.larger_towns != 0, layout) == NULL) {
01651 if (GetNumTowns() == 0) {
01652 if (_game_mode != GM_EDITOR) {
01653 extern StringID _switch_mode_errorstr;
01654 _switch_mode_errorstr = STR_COULD_NOT_CREATE_TOWN;
01655 }
01656
01657 return false;
01658 }
01659 }
01660
01661 return true;
01662 }
01663
01664
01670 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01671 {
01672 uint dist = DistanceSquare(tile, t->xy);
01673
01674 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01675
01676 HouseZonesBits smallest = HZB_TOWN_EDGE;
01677 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01678 if (dist < t->squared_town_zone_radius[i]) smallest = i;
01679 }
01680
01681 return smallest;
01682 }
01683
01694 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01695 {
01696 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01697
01698 assert(CmdSucceeded(cc));
01699
01700 IncreaseBuildingCount(t, type);
01701 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01702 if (GetHouseSpecs(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01703
01704 MarkTileDirtyByTile(tile);
01705 }
01706
01707
01718 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01719 {
01720 BuildingFlags size = GetHouseSpecs(type)->building_flags;
01721
01722 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01723 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01724 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01725 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01726 }
01727
01728
01737 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01738 {
01739
01740 Slope slope = GetTileSlope(tile, NULL);
01741 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01742
01743
01744 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01745
01746
01747 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01748
01749
01750 return CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR));
01751 }
01752
01753
01763 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, uint z, bool noslope)
01764 {
01765 if (!CanBuildHouseHere(tile, town, noslope)) return false;
01766
01767
01768 if (GetTileMaxZ(tile) != z) return false;
01769
01770 return true;
01771 }
01772
01773
01783 static bool CheckFree2x2Area(TileIndex tile, TownID town, uint z, bool noslope)
01784 {
01785
01786 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01787
01788 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
01789 tile += TileOffsByDiagDir(d);
01790 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01791 }
01792
01793 return true;
01794 }
01795
01796
01804 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
01805 {
01806
01807 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01808
01809 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
01810
01811 switch (t->layout) {
01812 case TL_2X2_GRID:
01813 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
01814 break;
01815
01816 case TL_3X3_GRID:
01817 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
01818 break;
01819
01820 default:
01821 break;
01822 }
01823
01824 return true;
01825 }
01826
01827
01835 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
01836 {
01837
01838 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01839
01840
01841
01842 uint dx = MapSize() + TileX(t->xy) - TileX(tile);
01843 uint dy = MapSize() + TileY(t->xy) - TileY(tile);
01844
01845 switch (t->layout) {
01846 case TL_2X2_GRID:
01847 if ((dx % 3) != 0 || (dy % 3) != 0) return false;
01848 break;
01849
01850 case TL_3X3_GRID:
01851 if ((dx % 4) < 2 || (dy % 4) < 2) return false;
01852 break;
01853
01854 default:
01855 break;
01856 }
01857
01858 return true;
01859 }
01860
01861
01871 static bool CheckTownBuild2House(TileIndex *tile, Town *t, uint maxz, bool noslope, DiagDirection second)
01872 {
01873
01874
01875 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
01876 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
01877
01878 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
01879 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
01880 *tile = tile2;
01881 return true;
01882 }
01883
01884 return false;
01885 }
01886
01887
01896 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, uint maxz, bool noslope)
01897 {
01898 TileIndex tile2 = *tile;
01899
01900 for (DiagDirection d = DIAGDIR_SE;;d++) {
01901 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
01902 *tile = tile2;
01903 return true;
01904 }
01905 if (d == DIAGDIR_END) break;
01906 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
01907 }
01908
01909 return false;
01910 }
01911
01912
01919 static bool BuildTownHouse(Town *t, TileIndex tile)
01920 {
01921
01922 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
01923
01924
01925 if (!CanBuildHouseHere(tile, t->index, false)) return false;
01926
01927 uint z;
01928 Slope slope = GetTileSlope(tile, &z);
01929
01930
01931
01932 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
01933
01934
01935 int land = _settings_game.game_creation.landscape;
01936 if (land == LT_ARCTIC && z >= _settings_game.game_creation.snow_line) land = -1;
01937
01938 uint bitmask = (1 << rad) + (1 << (land + 12));
01939
01940
01941
01942
01943 HouseID houses[HOUSE_MAX];
01944 uint num = 0;
01945 uint probs[HOUSE_MAX];
01946 uint probability_max = 0;
01947
01948
01949 for (uint i = 0; i < HOUSE_MAX; i++) {
01950 const HouseSpec *hs = GetHouseSpecs(i);
01951
01952
01953 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled) continue;
01954
01955
01956 if (hs->class_id != HOUSE_NO_CLASS) {
01957
01958 if (t->building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
01959 } else {
01960
01961 if (t->building_counts.id_count[i] == UINT16_MAX) continue;
01962 }
01963
01964
01965 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
01966 probability_max += cur_prob;
01967 probs[num] = cur_prob;
01968 houses[num++] = (HouseID)i;
01969 }
01970
01971 uint maxz = GetTileMaxZ(tile);
01972
01973 while (probability_max > 0) {
01974 uint r = RandomRange(probability_max);
01975 uint i;
01976 for (i = 0; i < num; i++) {
01977 if (probs[i] > r) break;
01978 r -= probs[i];
01979 }
01980
01981 HouseID house = houses[i];
01982 probability_max -= probs[i];
01983
01984
01985 num--;
01986 houses[i] = houses[num];
01987 probs[i] = probs[num];
01988
01989 const HouseSpec *hs = GetHouseSpecs(house);
01990
01991 if (_loaded_newgrf_features.has_newhouses) {
01992 if (hs->override != 0) {
01993 house = hs->override;
01994 hs = GetHouseSpecs(house);
01995 }
01996
01997 if ((hs->extra_flags & BUILDING_IS_HISTORICAL) && !_generating_world && _game_mode != GM_EDITOR) continue;
01998 }
01999
02000 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02001
02002
02003 uint oneof = 0;
02004
02005 if (hs->building_flags & BUILDING_IS_CHURCH) {
02006 SetBit(oneof, TOWN_HAS_CHURCH);
02007 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02008 SetBit(oneof, TOWN_HAS_STADIUM);
02009 }
02010
02011 if (HASBITS(t->flags12, oneof)) continue;
02012
02013
02014 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02015 if (noslope && slope != SLOPE_FLAT) continue;
02016
02017 if (hs->building_flags & TILE_SIZE_2x2) {
02018 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02019 } else if (hs->building_flags & TILE_SIZE_2x1) {
02020 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02021 } else if (hs->building_flags & TILE_SIZE_1x2) {
02022 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02023 } else {
02024
02025 }
02026
02027 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02028 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile);
02029 if (callback_res != CALLBACK_FAILED && GB(callback_res, 0, 8) == 0) continue;
02030 }
02031
02032
02033 t->num_houses++;
02034
02035
02036 t->flags12 |= oneof;
02037
02038 byte construction_counter = 0;
02039 byte construction_stage = 0;
02040
02041 if (_generating_world || _game_mode == GM_EDITOR) {
02042 uint32 r = Random();
02043
02044 construction_stage = TOWN_HOUSE_COMPLETED;
02045 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02046
02047 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02048 ChangePopulation(t, hs->population);
02049 } else {
02050 construction_counter = GB(r, 2, 2);
02051 }
02052 }
02053
02054 MakeTownHouse(tile, t, construction_counter, construction_stage, house, Random());
02055
02056 return true;
02057 }
02058
02059 return false;
02060 }
02061
02068 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02069 {
02070 assert(IsTileType(tile, MP_HOUSE));
02071 DecreaseBuildingCount(t, house);
02072 DoClearSquare(tile);
02073 DeleteAnimatedTile(tile);
02074 }
02075
02083 TileIndexDiff GetHouseNorthPart(HouseID &house)
02084 {
02085 if (house >= 3) {
02086 if (GetHouseSpecs(house - 1)->building_flags & TILE_SIZE_2x1) {
02087 house--;
02088 return TileDiffXY(-1, 0);
02089 } else if (GetHouseSpecs(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02090 house--;
02091 return TileDiffXY(0, -1);
02092 } else if (GetHouseSpecs(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02093 house -= 2;
02094 return TileDiffXY(-1, 0);
02095 } else if (GetHouseSpecs(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02096 house -= 3;
02097 return TileDiffXY(-1, -1);
02098 }
02099 }
02100 return 0;
02101 }
02102
02103 void ClearTownHouse(Town *t, TileIndex tile)
02104 {
02105 assert(IsTileType(tile, MP_HOUSE));
02106
02107 HouseID house = GetHouseType(tile);
02108
02109
02110 tile += GetHouseNorthPart(house);
02111
02112 const HouseSpec *hs = GetHouseSpecs(house);
02113
02114
02115 if (IsHouseCompleted(tile)) {
02116 ChangePopulation(t, -hs->population);
02117 }
02118
02119 t->num_houses--;
02120
02121
02122 if (hs->building_flags & BUILDING_IS_CHURCH) {
02123 ClrBit(t->flags12, TOWN_HAS_CHURCH);
02124 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02125 ClrBit(t->flags12, TOWN_HAS_STADIUM);
02126 }
02127
02128
02129 uint eflags = hs->building_flags;
02130 DoClearTownHouseHelper(tile, t, house);
02131 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02132 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02133 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02134 }
02135
02136 static bool IsUniqueTownName(const char *name)
02137 {
02138 const Town *t;
02139
02140 FOR_ALL_TOWNS(t) {
02141 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
02142 }
02143
02144 return true;
02145 }
02146
02153 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02154 {
02155 if (!IsValidTownID(p1)) return CMD_ERROR;
02156
02157 bool reset = StrEmpty(text);
02158
02159 if (!reset) {
02160 if (strlen(text) >= MAX_LENGTH_TOWN_NAME_BYTES) return CMD_ERROR;
02161 if (!IsUniqueTownName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
02162 }
02163
02164 if (flags & DC_EXEC) {
02165 Town *t = GetTown(p1);
02166
02167 free(t->name);
02168 t->name = reset ? NULL : strdup(text);
02169
02170 UpdateTownVirtCoord(t);
02171 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02172 UpdateAllStationVirtCoord();
02173 UpdateAllWaypointSigns();
02174 MarkWholeScreenDirty();
02175 }
02176 return CommandCost();
02177 }
02178
02180 void ExpandTown(Town *t)
02181 {
02182
02183
02184 static bool warned_no_roads = false;
02185 if (!_settings_game.economy.allow_town_roads && !warned_no_roads) {
02186 ShowErrorMessage(INVALID_STRING_ID, STR_TOWN_EXPAND_WARN_NO_ROADS, 0, 0);
02187 warned_no_roads = true;
02188 }
02189
02190
02191 uint amount = RandomRange(ClampToU16(t->num_houses / 10)) + 3;
02192 t->num_houses += amount;
02193 UpdateTownRadius(t);
02194
02195 uint n = amount * 10;
02196 do GrowTown(t); while (--n);
02197
02198 t->num_houses -= amount;
02199 UpdateTownRadius(t);
02200
02201 UpdateTownMaxPass(t);
02202 }
02203
02204 extern const byte _town_action_costs[8] = {
02205 2, 4, 9, 35, 48, 53, 117, 175
02206 };
02207
02208 static void TownActionAdvertiseSmall(Town *t)
02209 {
02210 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02211 }
02212
02213 static void TownActionAdvertiseMedium(Town *t)
02214 {
02215 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02216 }
02217
02218 static void TownActionAdvertiseLarge(Town *t)
02219 {
02220 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02221 }
02222
02223 static void TownActionRoadRebuild(Town *t)
02224 {
02225 t->road_build_months = 6;
02226
02227 char company_name[MAX_LENGTH_COMPANY_NAME_BYTES];
02228 SetDParam(0, _current_company);
02229 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02230
02231 char *cn = strdup(company_name);
02232 SetDParam(0, t->index);
02233 SetDParamStr(1, cn);
02234
02235 AddNewsItem(STR_2055_TRAFFIC_CHAOS_IN_ROAD_REBUILDING, NS_GENERAL, t->xy, 0, cn);
02236 }
02237
02238 static bool DoBuildStatueOfCompany(TileIndex tile, TownID town_id)
02239 {
02240
02241 if (IsSteepSlope(GetTileSlope(tile, NULL))) return false;
02242
02243 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02244
02245 if (!IsTileType(tile, MP_HOUSE) &&
02246 !IsTileType(tile, MP_CLEAR) &&
02247 !IsTileType(tile, MP_TREES)) {
02248 return false;
02249 }
02250
02251 CompanyID old = _current_company;
02252 _current_company = OWNER_NONE;
02253 CommandCost r = DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02254 _current_company = old;
02255
02256 if (CmdFailed(r)) return false;
02257
02258 MakeStatue(tile, _current_company, town_id);
02259 MarkTileDirtyByTile(tile);
02260
02261 return true;
02262 }
02263
02270 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02271 {
02272 TownID *town_id = (TownID *)user_data;
02273 return DoBuildStatueOfCompany(tile, *town_id);
02274 }
02275
02281 static void TownActionBuildStatue(Town *t)
02282 {
02283 TileIndex tile = t->xy;
02284
02285 if (CircularTileSearch(&tile, 9, SearchTileForStatue, &t->index)) {
02286 SetBit(t->statues, _current_company);
02287 }
02288 }
02289
02290 static void TownActionFundBuildings(Town *t)
02291 {
02292
02293 t->grow_counter = 1;
02294
02295 SetBit(t->flags12, TOWN_IS_FUNDED);
02296
02297 t->fund_buildings_months = 3;
02298 }
02299
02300 static void TownActionBuyRights(Town *t)
02301 {
02302
02303 if (!_settings_game.economy.exclusive_rights) return;
02304
02305 t->exclusive_counter = 12;
02306 t->exclusivity = _current_company;
02307
02308 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02309 }
02310
02311 static void TownActionBribe(Town *t)
02312 {
02313 if (Chance16(1, 14)) {
02314
02315 t->unwanted[_current_company] = 6;
02316
02317
02318 Station *st;
02319 FOR_ALL_STATIONS(st) {
02320 if (st->town == t && st->owner == _current_company) {
02321 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02322 }
02323 }
02324
02325
02326
02327 if (IsLocalCompany()) ShowErrorMessage(STR_BRIBE_FAILED_2, STR_BRIBE_FAILED, 0, 0);
02328
02329
02330
02331
02332
02333 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02334 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02335 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02336 }
02337 } else {
02338 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02339 }
02340 }
02341
02342 typedef void TownActionProc(Town *t);
02343 static TownActionProc * const _town_action_proc[] = {
02344 TownActionAdvertiseSmall,
02345 TownActionAdvertiseMedium,
02346 TownActionAdvertiseLarge,
02347 TownActionRoadRebuild,
02348 TownActionBuildStatue,
02349 TownActionFundBuildings,
02350 TownActionBuyRights,
02351 TownActionBribe
02352 };
02353
02354 enum TownActions {
02355 TACT_NONE = 0x00,
02356
02357 TACT_ADVERTISE_SMALL = 0x01,
02358 TACT_ADVERTISE_MEDIUM = 0x02,
02359 TACT_ADVERTISE_LARGE = 0x04,
02360 TACT_ROAD_REBUILD = 0x08,
02361 TACT_BUILD_STATUE = 0x10,
02362 TACT_FOUND_BUILDINGS = 0x20,
02363 TACT_BUY_RIGHTS = 0x40,
02364 TACT_BRIBE = 0x80,
02365
02366 TACT_ADVERTISE = TACT_ADVERTISE_SMALL | TACT_ADVERTISE_MEDIUM | TACT_ADVERTISE_LARGE,
02367 TACT_CONSTRUCTION = TACT_ROAD_REBUILD | TACT_BUILD_STATUE | TACT_FOUND_BUILDINGS,
02368 TACT_FUNDS = TACT_BUY_RIGHTS | TACT_BRIBE,
02369 TACT_ALL = TACT_ADVERTISE | TACT_CONSTRUCTION | TACT_FUNDS,
02370 };
02371
02372 DECLARE_ENUM_AS_BIT_SET(TownActions);
02373
02380 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02381 {
02382 int num = 0;
02383 TownActions buttons = TACT_NONE;
02384
02385
02386 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02387
02388
02389 Money avail = GetCompany(cid)->money + _price.station_value * 200;
02390 Money ref = _price.build_industry >> 8;
02391
02392
02393
02394 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02395 const TownActions cur = (TownActions)(1 << i);
02396
02397
02398 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM))
02399 continue;
02400
02401
02402 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights)
02403 continue;
02404
02405
02406 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid))
02407 continue;
02408
02409 if (avail >= _town_action_costs[i] * ref) {
02410 buttons |= cur;
02411 num++;
02412 }
02413 }
02414 }
02415
02416 if (nump != NULL) *nump = num;
02417 return buttons;
02418 }
02419
02428 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02429 {
02430 if (!IsValidTownID(p1) || p2 > lengthof(_town_action_proc)) return CMD_ERROR;
02431
02432 Town *t = GetTown(p1);
02433
02434 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02435
02436 CommandCost cost(EXPENSES_OTHER, (_price.build_industry >> 8) * _town_action_costs[p2]);
02437
02438 if (flags & DC_EXEC) {
02439 _town_action_proc[p2](t);
02440 InvalidateWindow(WC_TOWN_AUTHORITY, p1);
02441 }
02442
02443 return cost;
02444 }
02445
02446 static void UpdateTownGrowRate(Town *t)
02447 {
02448
02449 const Company *c;
02450 FOR_ALL_COMPANIES(c) {
02451 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02452 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02453 }
02454 }
02455
02456 int n = 0;
02457
02458 const Station *st;
02459 FOR_ALL_STATIONS(st) {
02460 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02461 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02462 n++;
02463 if (IsValidCompanyID(st->owner)) {
02464 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02465 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02466 }
02467 } else {
02468 if (IsValidCompanyID(st->owner)) {
02469 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02470 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02471 }
02472 }
02473 }
02474 }
02475
02476
02477 for (uint i = 0; i < MAX_COMPANIES; i++) {
02478 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02479 }
02480
02481 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02482
02483 ClrBit(t->flags12, TOWN_IS_FUNDED);
02484 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
02485
02488 static const uint16 _grow_count_values[2][6] = {
02489 { 120, 120, 120, 100, 80, 60 },
02490 { 320, 420, 300, 220, 160, 100 }
02491 };
02492
02493 uint16 m;
02494
02495 if (t->fund_buildings_months != 0) {
02496 m = _grow_count_values[0][min(n, 5)];
02497 t->fund_buildings_months--;
02498 } else {
02499 m = _grow_count_values[1][min(n, 5)];
02500 if (n == 0 && !Chance16(1, 12)) return;
02501 }
02502
02503 if (_settings_game.game_creation.landscape == LT_ARCTIC) {
02504 if (TilePixelHeight(t->xy) >= GetSnowLine() && t->act_food == 0 && t->population > 90)
02505 return;
02506 } else if (_settings_game.game_creation.landscape == LT_TROPIC) {
02507 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && (t->act_food == 0 || t->act_water == 0) && t->population > 60)
02508 return;
02509 }
02510
02511
02512
02513 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
02514
02515 m >>= growth_multiplier;
02516 if (t->larger_town) m /= 2;
02517
02518 t->growth_rate = m / (t->num_houses / 50 + 1);
02519 if (m <= t->grow_counter)
02520 t->grow_counter = m;
02521
02522 SetBit(t->flags12, TOWN_IS_FUNDED);
02523 }
02524
02525 static void UpdateTownAmounts(Town *t)
02526 {
02527
02528 t->pct_pass_transported = t->new_act_pass * 256 / (t->new_max_pass + 1);
02529
02530 t->max_pass = t->new_max_pass; t->new_max_pass = 0;
02531 t->act_pass = t->new_act_pass; t->new_act_pass = 0;
02532 t->act_food = t->new_act_food; t->new_act_food = 0;
02533 t->act_water = t->new_act_water; t->new_act_water = 0;
02534
02535
02536 t->pct_mail_transported = t->new_act_mail * 256 / (t->new_max_mail + 1);
02537 t->max_mail = t->new_max_mail; t->new_max_mail = 0;
02538 t->act_mail = t->new_act_mail; t->new_act_mail = 0;
02539
02540 InvalidateWindow(WC_TOWN_VIEW, t->index);
02541 }
02542
02543 static void UpdateTownUnwanted(Town *t)
02544 {
02545 const Company *c;
02546
02547 FOR_ALL_COMPANIES(c) {
02548 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
02549 }
02550 }
02551
02557 bool CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
02558 {
02559 if (!IsValidCompanyID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return true;
02560
02561 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
02562 if (t == NULL) return true;
02563
02564 if (t->ratings[_current_company] > RATING_VERYPOOR) return true;
02565
02566 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02567 SetDParam(0, t->index);
02568
02569 return false;
02570 }
02571
02572
02573 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
02574 {
02575 Town *t;
02576 uint best = threshold;
02577 Town *best_town = NULL;
02578
02579 FOR_ALL_TOWNS(t) {
02580 uint dist = DistanceManhattan(tile, t->xy);
02581 if (dist < best) {
02582 best = dist;
02583 best_town = t;
02584 }
02585 }
02586
02587 return best_town;
02588 }
02589
02590
02591 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
02592 {
02593 switch (GetTileType(tile)) {
02594 case MP_ROAD:
02595 if (!HasTownOwnedRoad(tile)) {
02596 TownID tid = GetTownIndex(tile);
02597 if (tid == (TownID)INVALID_TOWN) {
02598
02599 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
02600 assert(GetNumTowns() == 0);
02601 return NULL;
02602 }
02603
02604 Town *town = GetTown(tid);
02605 assert(town->IsValid());
02606 assert(town == CalcClosestTownFromTile(tile));
02607
02608 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
02609
02610 return town;
02611 }
02612
02613
02614 case MP_HOUSE:
02615 return GetTownByTile(tile);
02616
02617 default:
02618 return CalcClosestTownFromTile(tile, threshold);
02619 }
02620 }
02621
02622 static bool _town_rating_test = false;
02623 SmallMap<const Town *, int, 4> _town_test_ratings;
02624
02625 void SetTownRatingTestMode(bool mode)
02626 {
02627 static int ref_count = 0;
02628 if (mode) {
02629 if (ref_count == 0) {
02630 _town_test_ratings.Clear();
02631 }
02632 ref_count++;
02633 } else {
02634 assert(ref_count > 0);
02635 ref_count--;
02636 }
02637 _town_rating_test = !(ref_count == 0);
02638 }
02639
02640 static int GetRating(const Town *t)
02641 {
02642 if (_town_rating_test) {
02643 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
02644 if (it != _town_test_ratings.End()) {
02645 return it->second;
02646 }
02647 }
02648 return t->ratings[_current_company];
02649 }
02650
02658 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
02659 {
02660
02661 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
02662 !IsValidCompanyID(_current_company) ||
02663 (_cheats.magic_bulldozer.value && add < 0)) {
02664 return;
02665 }
02666
02667 int rating = GetRating(t);
02668 if (add < 0) {
02669 if (rating > max) {
02670 rating += add;
02671 if (rating < max) rating = max;
02672 }
02673 } else {
02674 if (rating < max) {
02675 rating += add;
02676 if (rating > max) rating = max;
02677 }
02678 }
02679 if (_town_rating_test) {
02680 _town_test_ratings[t] = rating;
02681 } else {
02682 SetBit(t->have_ratings, _current_company);
02683 t->ratings[_current_company] = rating;
02684 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02685 }
02686 }
02687
02688
02689 static const int _default_rating_settings [3][3] = {
02690
02691 { 0, 128, 384},
02692 { 48, 192, 480},
02693 { 96, 384, 768},
02694 };
02695
02696 bool CheckforTownRating(DoCommandFlag flags, Town *t, byte type)
02697 {
02698
02699 if (t == NULL || !IsValidCompanyID(_current_company) || _cheats.magic_bulldozer.value)
02700 return true;
02701
02702
02703
02704
02705
02706 int modemod = _default_rating_settings[_settings_game.difficulty.town_council_tolerance][type];
02707
02708 if (GetRating(t) < 16 + modemod && !(flags & DC_NO_TEST_TOWN_RATING)) {
02709 SetDParam(0, t->index);
02710 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02711 return false;
02712 }
02713
02714 return true;
02715 }
02716
02717 void TownsMonthlyLoop()
02718 {
02719 Town *t;
02720
02721 FOR_ALL_TOWNS(t) {
02722 if (t->road_build_months != 0) t->road_build_months--;
02723
02724 if (t->exclusive_counter != 0)
02725 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
02726
02727 UpdateTownGrowRate(t);
02728 UpdateTownAmounts(t);
02729 UpdateTownUnwanted(t);
02730 }
02731 }
02732
02733 void TownsYearlyLoop()
02734 {
02735
02736 for (TileIndex t = 0; t < MapSize(); t++) {
02737 if (!IsTileType(t, MP_HOUSE)) continue;
02738 IncrementHouseAge(t);
02739 }
02740 }
02741
02742 void InitializeTowns()
02743 {
02744
02745 _Town_pool.CleanPool();
02746 _Town_pool.AddBlockToPool();
02747
02748 memset(_subsidies, 0, sizeof(_subsidies));
02749 for (Subsidy *s = _subsidies; s != endof(_subsidies); s++) {
02750 s->cargo_type = CT_INVALID;
02751 }
02752
02753 _cur_town_ctr = 0;
02754 _cur_town_iter = 0;
02755 _total_towns = 0;
02756 }
02757
02758 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02759 {
02760 if (AutoslopeEnabled()) {
02761 HouseID house = GetHouseType(tile);
02762 GetHouseNorthPart(house);
02763 const HouseSpec *hs = GetHouseSpecs(house);
02764
02765
02766 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
02767 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
02768 }
02769
02770 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02771 }
02772
02774 extern const TileTypeProcs _tile_type_town_procs = {
02775 DrawTile_Town,
02776 GetSlopeZ_Town,
02777 ClearTile_Town,
02778 GetAcceptedCargo_Town,
02779 GetTileDesc_Town,
02780 GetTileTrackStatus_Town,
02781 ClickTile_Town,
02782 AnimateTile_Town,
02783 TileLoop_Town,
02784 ChangeTileOwner_Town,
02785 GetProducedCargo_Town,
02786 NULL,
02787 GetFoundation_Town,
02788 TerraformTile_Town,
02789 };
02790
02791 void ResetHouses()
02792 {
02793 memset(&_house_specs, 0, sizeof(_house_specs));
02794 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
02795
02796
02797 _house_mngr.ResetOverride();
02798 }