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 "station_map.h"
00041 #include "cheat_type.h"
00042 #include "functions.h"
00043 #include "animated_tile_func.h"
00044 #include "date_func.h"
00045 #include "core/smallmap_type.hpp"
00046
00047 #include "table/strings.h"
00048 #include "table/town_land.h"
00049
00050 uint _total_towns;
00051 HouseSpec _house_specs[HOUSE_MAX];
00052
00053 Town *_cleared_town;
00054 int _cleared_town_rating;
00055
00056 uint32 _cur_town_ctr;
00057 uint32 _cur_town_iter;
00058
00059
00060 DEFINE_OLD_POOL_GENERIC(Town, Town)
00061
00062 Town::Town(TileIndex tile)
00063 {
00064 if (tile != INVALID_TILE) _total_towns++;
00065 this->xy = tile;
00066 }
00067
00068 Town::~Town()
00069 {
00070 free(this->name);
00071
00072 if (CleaningPool()) return;
00073
00074 Industry *i;
00075
00076
00077
00078 DeleteWindowById(WC_TOWN_VIEW, this->index);
00079 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
00080 _total_towns--;
00081
00082
00083 FOR_ALL_INDUSTRIES(i) if (i->town == this) delete i;
00084
00085
00086 for (TileIndex tile = 0; tile < MapSize(); ++tile) {
00087 switch (GetTileType(tile)) {
00088 case MP_HOUSE:
00089 if (GetTownByTile(tile) == this) DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00090 break;
00091
00092 case MP_ROAD:
00093
00094 if (HasTownOwnedRoad(tile) && GetTownIndex(tile) == this->index) {
00095 DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00096 }
00097 break;
00098
00099 case MP_TUNNELBRIDGE:
00100 if (IsTileOwner(tile, OWNER_TOWN) &&
00101 ClosestTownFromTile(tile, UINT_MAX) == this)
00102 DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
00103 break;
00104
00105 default:
00106 break;
00107 }
00108 }
00109
00110 DeleteSubsidyWithTown(this->index);
00111
00112 MarkWholeScreenDirty();
00113
00114 this->xy = INVALID_TILE;
00115
00116 UpdateNearestTownForRoadTiles(false);
00117 }
00118
00122 void Town::InitializeLayout(TownLayout layout)
00123 {
00124 if (layout != TL_RANDOM) {
00125 this->layout = layout;
00126 return;
00127 }
00128
00129 this->layout = TileHash(TileX(this->xy), TileY(this->xy)) % (NUM_TLS - 1);
00130 }
00131
00132 Money HouseSpec::GetRemovalCost() const
00133 {
00134 return (_price.remove_house * this->removal_cost) >> 8;
00135 }
00136
00137
00138 static int _grow_town_result;
00139
00140
00141 enum TownGrowthResult {
00142 GROWTH_SUCCEED = -1,
00143 GROWTH_SEARCH_STOPPED = 0
00144
00145 };
00146
00147 static bool BuildTownHouse(Town *t, TileIndex tile);
00148
00149 static void TownDrawHouseLift(const TileInfo *ti)
00150 {
00151 AddChildSpriteScreen(SPR_LIFT, PAL_NONE, 14, 60 - GetLiftPosition(ti->tile));
00152 }
00153
00154 typedef void TownDrawTileProc(const TileInfo *ti);
00155 static TownDrawTileProc * const _town_draw_tile_procs[1] = {
00156 TownDrawHouseLift
00157 };
00158
00164 static inline DiagDirection RandomDiagDir()
00165 {
00166 return (DiagDirection)(3 & Random());
00167 }
00168
00174 static void DrawTile_Town(TileInfo *ti)
00175 {
00176 HouseID house_id = GetHouseType(ti->tile);
00177
00178 if (house_id >= NEW_HOUSE_OFFSET) {
00179
00180
00181
00182 if (GetHouseSpecs(house_id)->spritegroup != NULL) {
00183 DrawNewHouseTile(ti, house_id);
00184 return;
00185 } else {
00186 house_id = GetHouseSpecs(house_id)->substitute_id;
00187 }
00188 }
00189
00190
00191 const DrawBuildingsTileStruct *dcts = &_town_draw_tile_data[house_id << 4 | TileHash2Bit(ti->x, ti->y) << 2 | GetHouseBuildingStage(ti->tile)];
00192
00193 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
00194
00195 DrawGroundSprite(dcts->ground.sprite, dcts->ground.pal);
00196
00197
00198 if (IsInvisibilitySet(TO_HOUSES)) return;
00199
00200
00201 SpriteID image = dcts->building.sprite;
00202 if (image != 0) {
00203 AddSortableSpriteToDraw(image, dcts->building.pal,
00204 ti->x + dcts->subtile_x,
00205 ti->y + dcts->subtile_y,
00206 dcts->width,
00207 dcts->height,
00208 dcts->dz,
00209 ti->z,
00210 IsTransparencySet(TO_HOUSES)
00211 );
00212
00213 if (IsTransparencySet(TO_HOUSES)) return;
00214 }
00215
00216 {
00217 int proc = dcts->draw_proc - 1;
00218
00219 if (proc >= 0) _town_draw_tile_procs[proc](ti);
00220 }
00221 }
00222
00223 static uint GetSlopeZ_Town(TileIndex tile, uint x, uint y)
00224 {
00225 return GetTileMaxZ(tile);
00226 }
00227
00229 static Foundation GetFoundation_Town(TileIndex tile, Slope tileh)
00230 {
00231 return FlatteningFoundation(tileh);
00232 }
00233
00240 static void AnimateTile_Town(TileIndex tile)
00241 {
00242 if (GetHouseType(tile) >= NEW_HOUSE_OFFSET) {
00243 AnimateNewHouseTile(tile);
00244 return;
00245 }
00246
00247 if (_tick_counter & 3) return;
00248
00249
00250
00251
00252
00253 if (!(GetHouseSpecs(GetHouseType(tile))->building_flags & BUILDING_IS_ANIMATED)) {
00254 DeleteAnimatedTile(tile);
00255 return;
00256 }
00257
00258 if (!LiftHasDestination(tile)) {
00259 uint i;
00260
00261
00262
00263
00264
00265 do {
00266 i = RandomRange(7);
00267 } while (i == 1 || i * 6 == GetLiftPosition(tile));
00268
00269 SetLiftDestination(tile, i);
00270 }
00271
00272 int pos = GetLiftPosition(tile);
00273 int dest = GetLiftDestination(tile) * 6;
00274 pos += (pos < dest) ? 1 : -1;
00275 SetLiftPosition(tile, pos);
00276
00277 if (pos == dest) {
00278 HaltLift(tile);
00279 DeleteAnimatedTile(tile);
00280 }
00281
00282 MarkTileDirtyByTile(tile);
00283 }
00284
00291 static bool IsCloseToTown(TileIndex tile, uint dist)
00292 {
00293 const Town *t;
00294
00295 FOR_ALL_TOWNS(t) {
00296 if (DistanceManhattan(tile, t->xy) < dist) return true;
00297 }
00298 return false;
00299 }
00300
00309 static void MarkTownSignDirty(Town *t)
00310 {
00311 MarkAllViewportsDirty(
00312 t->sign.left - 6,
00313 t->sign.top - 3,
00314 t->sign.left + t->sign.width_1 * 4 + 12,
00315 t->sign.top + 45
00316 );
00317 }
00318
00324 void UpdateTownVirtCoord(Town *t)
00325 {
00326 MarkTownSignDirty(t);
00327 Point pt = RemapCoords2(TileX(t->xy) * TILE_SIZE, TileY(t->xy) * TILE_SIZE);
00328 SetDParam(0, t->index);
00329 SetDParam(1, t->population);
00330 UpdateViewportSignPos(&t->sign, pt.x, pt.y - 24,
00331 _settings_client.gui.population_in_label ? STR_TOWN_LABEL_POP : STR_TOWN_LABEL);
00332 MarkTownSignDirty(t);
00333 }
00334
00336 void UpdateAllTownVirtCoords()
00337 {
00338 Town *t;
00339 FOR_ALL_TOWNS(t) {
00340 UpdateTownVirtCoord(t);
00341 }
00342 }
00343
00349 static void ChangePopulation(Town *t, int mod)
00350 {
00351 t->population += mod;
00352 InvalidateWindow(WC_TOWN_VIEW, t->index);
00353 UpdateTownVirtCoord(t);
00354
00355 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
00356 }
00357
00363 uint32 GetWorldPopulation()
00364 {
00365 uint32 pop = 0;
00366 const Town *t;
00367
00368 FOR_ALL_TOWNS(t) pop += t->population;
00369 return pop;
00370 }
00371
00376 static void MakeSingleHouseBigger(TileIndex tile)
00377 {
00378 assert(IsTileType(tile, MP_HOUSE));
00379
00380
00381 if (LiftHasDestination(tile)) return;
00382
00383
00384 IncHouseConstructionTick(tile);
00385 if (GetHouseConstructionTick(tile) != 0) return;
00386
00387 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00388
00389
00390 if (HasBit(hs->callback_mask, CBM_HOUSE_CONSTRUCTION_STATE_CHANGE)) {
00391 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CONSTRUCTION_STATE_CHANGE, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00392 if (callback_res != CALLBACK_FAILED) ChangeHouseAnimationFrame(hs->grffile, tile, callback_res);
00393 }
00394
00395 if (IsHouseCompleted(tile)) {
00396
00397
00398 ChangePopulation(GetTownByTile(tile), hs->population);
00399 ResetHouseAge(tile);
00400 }
00401 MarkTileDirtyByTile(tile);
00402 }
00403
00407 static void MakeTownHouseBigger(TileIndex tile)
00408 {
00409 uint flags = GetHouseSpecs(GetHouseType(tile))->building_flags;
00410 if (flags & BUILDING_HAS_1_TILE) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 0));
00411 if (flags & BUILDING_2_TILES_Y) MakeSingleHouseBigger(TILE_ADDXY(tile, 0, 1));
00412 if (flags & BUILDING_2_TILES_X) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 0));
00413 if (flags & BUILDING_HAS_4_TILES) MakeSingleHouseBigger(TILE_ADDXY(tile, 1, 1));
00414 }
00415
00422 static void TileLoop_Town(TileIndex tile)
00423 {
00424 HouseID house_id = GetHouseType(tile);
00425
00426
00427
00428 if (house_id >= NEW_HOUSE_OFFSET && !NewHouseTileLoop(tile)) return;
00429
00430 if (!IsHouseCompleted(tile)) {
00431
00432 MakeTownHouseBigger(tile);
00433 return;
00434 }
00435
00436 const HouseSpec *hs = GetHouseSpecs(house_id);
00437
00438
00439 if ((hs->building_flags & BUILDING_IS_ANIMATED) &&
00440 house_id < NEW_HOUSE_OFFSET &&
00441 !LiftHasDestination(tile) &&
00442 Chance16(1, 2)) {
00443 AddAnimatedTile(tile);
00444 }
00445
00446 Town *t = GetTownByTile(tile);
00447 uint32 r = Random();
00448
00449 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00450 for (uint i = 0; i < 256; i++) {
00451 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, r, house_id, t, tile);
00452
00453 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00454
00455 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grffile);
00456 if (cargo == CT_INVALID) continue;
00457
00458 uint amt = GB(callback, 0, 8);
00459 if (amt == 0) continue;
00460
00461 uint moved = MoveGoodsToStation(tile, 1, 1, cargo, amt);
00462
00463 const CargoSpec *cs = GetCargo(cargo);
00464 switch (cs->town_effect) {
00465 case TE_PASSENGERS:
00466 t->new_max_pass += amt;
00467 t->new_act_pass += moved;
00468 break;
00469
00470 case TE_MAIL:
00471 t->new_max_mail += amt;
00472 t->new_act_mail += moved;
00473 break;
00474
00475 default:
00476 break;
00477 }
00478 }
00479 } else {
00480 if (GB(r, 0, 8) < hs->population) {
00481 uint amt = GB(r, 0, 8) / 8 + 1;
00482
00483 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00484 t->new_max_pass += amt;
00485 t->new_act_pass += MoveGoodsToStation(tile, 1, 1, CT_PASSENGERS, amt);
00486 }
00487
00488 if (GB(r, 8, 8) < hs->mail_generation) {
00489 uint amt = GB(r, 8, 8) / 8 + 1;
00490
00491 if (_economy.fluct <= 0) amt = (amt + 1) >> 1;
00492 t->new_max_mail += amt;
00493 t->new_act_mail += MoveGoodsToStation(tile, 1, 1, CT_MAIL, amt);
00494 }
00495 }
00496
00497 _current_company = OWNER_TOWN;
00498
00499 if (hs->building_flags & BUILDING_HAS_1_TILE &&
00500 HasBit(t->flags12, TOWN_IS_FUNDED) &&
00501 CanDeleteHouse(tile) &&
00502 GetHouseAge(tile) >= hs->minimum_life &&
00503 --t->time_until_rebuild == 0) {
00504 t->time_until_rebuild = GB(r, 16, 8) + 192;
00505
00506 ClearTownHouse(t, tile);
00507
00508
00509 if (GB(r, 24, 8) >= 12) BuildTownHouse(t, tile);
00510 }
00511
00512 _current_company = OWNER_NONE;
00513 }
00514
00515 static CommandCost ClearTile_Town(TileIndex tile, DoCommandFlag flags)
00516 {
00517 if (flags & DC_AUTO) return_cmd_error(STR_2004_BUILDING_MUST_BE_DEMOLISHED);
00518 if (!CanDeleteHouse(tile)) return CMD_ERROR;
00519
00520 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00521
00522 CommandCost cost(EXPENSES_CONSTRUCTION);
00523 cost.AddCost(hs->GetRemovalCost());
00524
00525 int rating = hs->remove_rating_decrease;
00526 _cleared_town_rating += rating;
00527 Town *t = _cleared_town = GetTownByTile(tile);
00528
00529 if (IsValidCompanyID(_current_company)) {
00530 if (rating > t->ratings[_current_company] && !(flags & DC_NO_TEST_TOWN_RATING) && !_cheats.magic_bulldozer.value) {
00531 SetDParam(0, t->index);
00532 return_cmd_error(STR_2009_LOCAL_AUTHORITY_REFUSES);
00533 }
00534 }
00535
00536 ChangeTownRating(t, -rating, RATING_HOUSE_MINIMUM, flags);
00537 if (flags & DC_EXEC) {
00538 ClearTownHouse(t, tile);
00539 }
00540
00541 return cost;
00542 }
00543
00544 static void GetProducedCargo_Town(TileIndex tile, CargoID *b)
00545 {
00546 HouseID house_id = GetHouseType(tile);
00547 const HouseSpec *hs = GetHouseSpecs(house_id);
00548 Town *t = GetTownByTile(tile);
00549
00550 if (HasBit(hs->callback_mask, CBM_HOUSE_PRODUCE_CARGO)) {
00551 for (uint i = 0; i < 256; i++) {
00552 uint16 callback = GetHouseCallback(CBID_HOUSE_PRODUCE_CARGO, i, 0, house_id, t, tile);
00553
00554 if (callback == CALLBACK_FAILED || callback == CALLBACK_HOUSEPRODCARGO_END) break;
00555
00556 CargoID cargo = GetCargoTranslation(GB(callback, 8, 7), hs->grffile);
00557
00558 if (cargo == CT_INVALID) continue;
00559 *(b++) = cargo;
00560 }
00561 } else {
00562 if (hs->population > 0) {
00563 *(b++) = CT_PASSENGERS;
00564 }
00565 if (hs->mail_generation > 0) {
00566 *(b++) = CT_MAIL;
00567 }
00568 }
00569 }
00570
00571 static void GetAcceptedCargo_Town(TileIndex tile, AcceptedCargo ac)
00572 {
00573 const HouseSpec *hs = GetHouseSpecs(GetHouseType(tile));
00574 CargoID accepts[3];
00575
00576
00577 for (uint8 i = 0; i < lengthof(accepts); i++) {
00578 accepts[i] = hs->accepts_cargo[i];
00579 }
00580
00581
00582 if (HasBit(hs->callback_mask, CBM_HOUSE_ACCEPT_CARGO)) {
00583 uint16 callback = GetHouseCallback(CBID_HOUSE_ACCEPT_CARGO, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00584 if (callback != CALLBACK_FAILED) {
00585
00586 accepts[0] = GetCargoTranslation(GB(callback, 0, 5), hs->grffile);
00587 accepts[1] = GetCargoTranslation(GB(callback, 5, 5), hs->grffile);
00588 accepts[2] = GetCargoTranslation(GB(callback, 10, 5), hs->grffile);
00589 }
00590 }
00591
00592
00593 if (HasBit(hs->callback_mask, CBM_HOUSE_CARGO_ACCEPTANCE)) {
00594 uint16 callback = GetHouseCallback(CBID_HOUSE_CARGO_ACCEPTANCE, 0, 0, GetHouseType(tile), GetTownByTile(tile), tile);
00595 if (callback != CALLBACK_FAILED) {
00596 if (accepts[0] != CT_INVALID) ac[accepts[0]] = GB(callback, 0, 4);
00597 if (accepts[1] != CT_INVALID) ac[accepts[1]] = GB(callback, 4, 4);
00598 if (_settings_game.game_creation.landscape != LT_TEMPERATE && HasBit(callback, 12)) {
00599
00600 ac[CT_FOOD] = GB(callback, 8, 4);
00601 } else {
00602 if (accepts[2] != CT_INVALID) ac[accepts[2]] = GB(callback, 8, 4);
00603 }
00604 return;
00605 }
00606 }
00607
00608
00609 for (uint8 i = 0; i < lengthof(accepts); i++) {
00610 if (accepts[i] != CT_INVALID) ac[accepts[i]] = hs->cargo_acceptance[i];
00611 }
00612 }
00613
00614 static void GetTileDesc_Town(TileIndex tile, TileDesc *td)
00615 {
00616 const HouseID house = GetHouseType(tile);
00617 const HouseSpec *hs = GetHouseSpecs(house);
00618 bool house_completed = IsHouseCompleted(tile);
00619
00620 td->str = hs->building_name;
00621
00622 uint16 callback_res = GetHouseCallback(CBID_HOUSE_CUSTOM_NAME, house_completed ? 1 : 0, 0, house, GetTownByTile(tile), tile);
00623 if (callback_res != CALLBACK_FAILED) {
00624 StringID new_name = GetGRFStringID(hs->grffile->grfid, 0xD000 + callback_res);
00625 if (new_name != STR_NULL && new_name != STR_UNDEFINED) {
00626 td->str = new_name;
00627 }
00628 }
00629
00630 if (!house_completed) {
00631 SetDParamX(td->dparam, 0, td->str);
00632 td->str = STR_2058_UNDER_CONSTRUCTION;
00633 }
00634
00635 if (hs->grffile != NULL) {
00636 const GRFConfig *gc = GetGRFConfig(hs->grffile->grfid);
00637 td->grf = gc->name;
00638 }
00639
00640 td->owner[0] = OWNER_TOWN;
00641 }
00642
00643 static TrackStatus GetTileTrackStatus_Town(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
00644 {
00645
00646 return 0;
00647 }
00648
00649 static void ChangeTileOwner_Town(TileIndex tile, Owner old_owner, Owner new_owner)
00650 {
00651
00652 }
00653
00654 static bool GrowTown(Town *t);
00655
00656 static void TownTickHandler(Town *t)
00657 {
00658 if (HasBit(t->flags12, TOWN_IS_FUNDED)) {
00659 int i = t->grow_counter - 1;
00660 if (i < 0) {
00661 if (GrowTown(t)) {
00662 i = t->growth_rate;
00663 } else {
00664 i = 0;
00665 }
00666 }
00667 t->grow_counter = i;
00668 }
00669
00670 UpdateTownRadius(t);
00671 }
00672
00673 void OnTick_Town()
00674 {
00675 if (_game_mode == GM_EDITOR) return;
00676
00677 Town *t;
00678 FOR_ALL_TOWNS(t) {
00679
00680 if ((_tick_counter + t->index) % TOWN_GROWTH_FREQUENCY == 0) {
00681 TownTickHandler(t);
00682 }
00683 }
00684 }
00685
00694 static RoadBits GetTownRoadBits(TileIndex tile)
00695 {
00696 if (IsRoadDepotTile(tile) || IsStandardRoadStopTile(tile)) return ROAD_NONE;
00697
00698 return GetAnyRoadBits(tile, ROADTYPE_ROAD, true);
00699 }
00700
00711 static bool IsNeighborRoadTile(TileIndex tile, const DiagDirection dir, uint dist_multi)
00712 {
00713 if (!IsValidTile(tile)) return false;
00714
00715
00716 const TileIndexDiff tid_lt[3] = {
00717 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90RIGHT)),
00718 TileOffsByDiagDir(ChangeDiagDir(dir, DIAGDIRDIFF_90LEFT)),
00719 TileOffsByDiagDir(ReverseDiagDir(dir)),
00720 };
00721
00722 dist_multi = (dist_multi + 1) * 4;
00723 for (uint pos = 4; pos < dist_multi; pos++) {
00724
00725 TileIndexDiff cur = tid_lt[(pos & 1) ? 0 : 1] * (pos / 4);
00726
00727
00728 if (pos & 2) cur += tid_lt[2];
00729
00730
00731 if (IsValidTile(tile + cur) &&
00732 GetTownRoadBits(TILE_ADD(tile, cur)) & DiagDirToRoadBits((pos & 2) ? dir : ReverseDiagDir(dir))) return true;
00733 }
00734 return false;
00735 }
00736
00745 static bool IsRoadAllowedHere(Town *t, TileIndex tile, DiagDirection dir)
00746 {
00747 if (DistanceFromEdge(tile) == 0) return false;
00748
00749 Slope cur_slope, desired_slope;
00750
00751 for (;;) {
00752
00753 if (GetTownRoadBits(tile) == ROAD_NONE) {
00754
00755
00756
00757 if (CmdFailed(DoCommand(tile, ((dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? ROAD_X : ROAD_Y), 0, DC_AUTO, CMD_BUILD_ROAD)) &&
00758 CmdFailed(DoCommand(tile, 0, 0, DC_AUTO, CMD_LANDSCAPE_CLEAR)))
00759 return false;
00760 }
00761
00762 cur_slope = _settings_game.construction.build_on_slopes ? GetFoundationSlope(tile, NULL) : GetTileSlope(tile, NULL);
00763 if (cur_slope == SLOPE_FLAT) {
00764 no_slope:
00765
00766 switch (t->layout) {
00767 default: NOT_REACHED();
00768
00769 case TL_ORIGINAL:
00770 return !IsNeighborRoadTile(tile, dir, 1);
00771
00772 case TL_BETTER_ROADS:
00773 return !IsNeighborRoadTile(tile, dir, 2);
00774 }
00775 }
00776
00777
00778
00779 desired_slope = (dir == DIAGDIR_NW || dir == DIAGDIR_SE) ? SLOPE_NW : SLOPE_NE;
00780 if (desired_slope != cur_slope && ComplementSlope(desired_slope) != cur_slope) {
00781 if (Chance16(1, 8)) {
00782 CommandCost res = CMD_ERROR;
00783 if (!_generating_world && Chance16(1, 10)) {
00784
00785 res = DoCommand(tile, Chance16(1, 16) ? cur_slope : cur_slope ^ SLOPE_ELEVATED, 0,
00786 DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00787 }
00788 if (CmdFailed(res) && Chance16(1, 3)) {
00789
00790 goto no_slope;
00791 }
00792 }
00793 return false;
00794 }
00795 return true;
00796 }
00797 }
00798
00799 static bool TerraformTownTile(TileIndex tile, int edges, int dir)
00800 {
00801 assert(tile < MapSize());
00802
00803 CommandCost r = DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER, CMD_TERRAFORM_LAND);
00804 if (CmdFailed(r) || r.GetCost() >= (_price.terraform + 2) * 8) return false;
00805 DoCommand(tile, edges, dir, DC_AUTO | DC_NO_WATER | DC_EXEC, CMD_TERRAFORM_LAND);
00806 return true;
00807 }
00808
00809 static void LevelTownLand(TileIndex tile)
00810 {
00811 assert(tile < MapSize());
00812
00813
00814 if (IsTileType(tile, MP_HOUSE)) return;
00815 Slope tileh = GetTileSlope(tile, NULL);
00816 if (tileh == SLOPE_FLAT) return;
00817
00818
00819 if (!TerraformTownTile(tile, ~tileh & SLOPE_ELEVATED, 1)) {
00820 TerraformTownTile(tile, tileh & SLOPE_ELEVATED, 0);
00821 }
00822 }
00823
00833 static RoadBits GetTownRoadGridElement(Town *t, TileIndex tile, DiagDirection dir)
00834 {
00835
00836 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
00837 RoadBits rcmd = ROAD_NONE;
00838
00839 switch (t->layout) {
00840 default: NOT_REACHED();
00841
00842 case TL_2X2_GRID:
00843 if ((grid_pos.x % 3) == 0) rcmd |= ROAD_Y;
00844 if ((grid_pos.y % 3) == 0) rcmd |= ROAD_X;
00845 break;
00846
00847 case TL_3X3_GRID:
00848 if ((grid_pos.x % 4) == 0) rcmd |= ROAD_Y;
00849 if ((grid_pos.y % 4) == 0) rcmd |= ROAD_X;
00850 break;
00851 }
00852
00853
00854 if (rcmd != ROAD_ALL) return rcmd;
00855
00856 RoadBits rb_template;
00857
00858 switch (GetTileSlope(tile, NULL)) {
00859 default: rb_template = ROAD_ALL; break;
00860 case SLOPE_W: rb_template = ROAD_NW | ROAD_SW; break;
00861 case SLOPE_SW: rb_template = ROAD_Y | ROAD_SW; break;
00862 case SLOPE_S: rb_template = ROAD_SW | ROAD_SE; break;
00863 case SLOPE_SE: rb_template = ROAD_X | ROAD_SE; break;
00864 case SLOPE_E: rb_template = ROAD_SE | ROAD_NE; break;
00865 case SLOPE_NE: rb_template = ROAD_Y | ROAD_NE; break;
00866 case SLOPE_N: rb_template = ROAD_NE | ROAD_NW; break;
00867 case SLOPE_NW: rb_template = ROAD_X | ROAD_NW; break;
00868 case SLOPE_STEEP_W:
00869 case SLOPE_STEEP_S:
00870 case SLOPE_STEEP_E:
00871 case SLOPE_STEEP_N:
00872 rb_template = ROAD_NONE;
00873 break;
00874 }
00875
00876
00877 if (DiagDirToRoadBits(ReverseDiagDir(dir)) & rb_template) return rb_template;
00878
00879 return DiagDirToRoadBits(dir) | DiagDirToRoadBits(ReverseDiagDir(dir));
00880 }
00881
00892 static bool GrowTownWithExtraHouse(Town *t, TileIndex tile)
00893 {
00894
00895 if (DistanceFromEdge(tile) == 0) return false;
00896
00897 uint counter = 0;
00898
00899
00900 for (DiagDirection dir = DIAGDIR_BEGIN; dir < DIAGDIR_END; dir++) {
00901
00902
00903
00904 switch (GetTileType(TileAddByDiagDir(tile, dir))) {
00905 case MP_HOUSE:
00906 case MP_VOID:
00907 counter++;
00908 break;
00909
00910 default:
00911 break;
00912 }
00913
00914
00915 if (counter >= 3) {
00916 if (BuildTownHouse(t, tile)) {
00917 _grow_town_result = GROWTH_SUCCEED;
00918 return true;
00919 }
00920 return false;
00921 }
00922 }
00923 return false;
00924 }
00925
00934 static bool GrowTownWithRoad(const Town *t, TileIndex tile, RoadBits rcmd)
00935 {
00936 if (CmdSucceeded(DoCommand(tile, rcmd, t->index, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_BUILD_ROAD))) {
00937 _grow_town_result = GROWTH_SUCCEED;
00938 return true;
00939 }
00940 return false;
00941 }
00942
00953 static bool GrowTownWithBridge(const Town *t, const TileIndex tile, const DiagDirection bridge_dir)
00954 {
00955 assert(bridge_dir < DIAGDIR_END);
00956
00957 const Slope slope = GetTileSlope(tile, NULL);
00958 if (slope == SLOPE_FLAT) return false;
00959
00960
00961
00962
00963 if (HASBITS(slope, InclinedSlope(bridge_dir))) return false;
00964
00965
00966 if (!(GetTownRoadBits(TileAddByDiagDir(tile, ReverseDiagDir(bridge_dir))) & DiagDirToRoadBits(bridge_dir))) return false;
00967
00968
00969 uint8 bridge_length = 0;
00970 TileIndex bridge_tile = tile;
00971
00972 const int delta = TileOffsByDiagDir(bridge_dir);
00973 do {
00974 if (bridge_length++ >= 11) {
00975
00976 return false;
00977 }
00978 bridge_tile += delta;
00979 } while (TileX(bridge_tile) != 0 && TileY(bridge_tile) != 0 && IsWaterTile(bridge_tile));
00980
00981
00982 if (bridge_length == 1) return false;
00983
00984 for (uint8 times = 0; times <= 22; times++) {
00985 byte bridge_type = RandomRange(MAX_BRIDGES - 1);
00986
00987
00988 if (CmdSucceeded(DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_AUTO, CMD_BUILD_BRIDGE))) {
00989 DoCommand(tile, bridge_tile, bridge_type | ROADTYPES_ROAD << 8 | TRANSPORT_ROAD << 15, DC_EXEC | DC_AUTO, CMD_BUILD_BRIDGE);
00990 _grow_town_result = GROWTH_SUCCEED;
00991 return true;
00992 }
00993 }
00994
00995 return false;
00996 }
00997
01015 static void GrowTownInTile(TileIndex *tile_ptr, RoadBits cur_rb, DiagDirection target_dir, Town *t1)
01016 {
01017 RoadBits rcmd = ROAD_NONE;
01018 TileIndex tile = *tile_ptr;
01019
01020 assert(tile < MapSize());
01021
01022 if (cur_rb == ROAD_NONE) {
01023
01024
01025 _grow_town_result = GROWTH_SEARCH_STOPPED;
01026
01027 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01028
01029
01030 if (!_settings_game.construction.build_on_slopes || Chance16(1, 6)) LevelTownLand(tile);
01031
01032
01033 switch (t1->layout) {
01034 default: NOT_REACHED();
01035
01036 case TL_3X3_GRID:
01037 case TL_2X2_GRID:
01038 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01039 if (rcmd == ROAD_NONE) return;
01040 break;
01041
01042 case TL_BETTER_ROADS:
01043 case TL_ORIGINAL:
01044 if (!IsRoadAllowedHere(t1, tile, target_dir)) return;
01045
01046 DiagDirection source_dir = ReverseDiagDir(target_dir);
01047
01048 if (Chance16(1, 4)) {
01049
01050 do target_dir = RandomDiagDir(); while (target_dir == source_dir);
01051 }
01052
01053 if (!IsRoadAllowedHere(t1, TileAddByDiagDir(tile, target_dir), target_dir)) {
01054
01055
01056 if (target_dir != ReverseDiagDir(source_dir)) return;
01057
01058
01059 if (!IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90RIGHT)), MP_HOUSE) &&
01060 !IsTileType(TileAddByDiagDir(tile, ChangeDiagDir(target_dir, DIAGDIRDIFF_90LEFT)), MP_HOUSE)) {
01061 return;
01062 }
01063
01064
01065
01066 }
01067
01068 rcmd = DiagDirToRoadBits(target_dir) | DiagDirToRoadBits(source_dir);
01069 break;
01070 }
01071
01072 } else if (target_dir < DIAGDIR_END && !(cur_rb & DiagDirToRoadBits(ReverseDiagDir(target_dir)))) {
01073
01074
01075
01076 _grow_town_result = GROWTH_SEARCH_STOPPED;
01077
01078 if (!_settings_game.economy.allow_town_roads && !_generating_world) return;
01079
01080 switch (t1->layout) {
01081 default: NOT_REACHED();
01082
01083 case TL_3X3_GRID:
01084 case TL_2X2_GRID:
01085 rcmd = GetTownRoadGridElement(t1, tile, target_dir);
01086 break;
01087
01088 case TL_BETTER_ROADS:
01089 case TL_ORIGINAL:
01090 rcmd = DiagDirToRoadBits(ReverseDiagDir(target_dir));
01091 break;
01092 }
01093 } else {
01094 bool allow_house = true;
01095
01096
01097 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
01098 if (GetTunnelBridgeTransportType(tile) == TRANSPORT_ROAD) {
01099 *tile_ptr = GetOtherTunnelBridgeEnd(tile);
01100 }
01101 return;
01102 }
01103
01104
01105
01106 target_dir = RandomDiagDir();
01107 if (cur_rb & DiagDirToRoadBits(target_dir)) return;
01108
01109
01110 TileIndex house_tile = TileAddByDiagDir(tile, target_dir);
01111
01112
01113 if (IsWaterTile(house_tile)) return;
01114
01115 if (!IsValidTile(house_tile)) return;
01116
01117 if (_settings_game.economy.allow_town_roads || _generating_world) {
01118 switch (t1->layout) {
01119 default: NOT_REACHED();
01120
01121 case TL_3X3_GRID:
01122 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01123
01124
01125 case TL_2X2_GRID:
01126 rcmd = GetTownRoadGridElement(t1, house_tile, target_dir);
01127 allow_house = (rcmd == ROAD_NONE);
01128 break;
01129
01130 case TL_BETTER_ROADS:
01131 GrowTownWithExtraHouse(t1, TileAddByDiagDir(house_tile, target_dir));
01132
01133
01134 case TL_ORIGINAL:
01135
01136
01137 rcmd = DiagDirToRoadBits(target_dir);
01138 allow_house = (!IsRoadAllowedHere(t1, house_tile, target_dir) || Chance16(6, 10));
01139 break;
01140 }
01141 }
01142
01143 if (allow_house) {
01144
01145 if (!IsTileType(house_tile, MP_HOUSE)) {
01146
01147 if (Chance16(1, 6)) LevelTownLand(house_tile);
01148
01149
01150
01151 if (BuildTownHouse(t1, house_tile)) {
01152 _grow_town_result = GROWTH_SUCCEED;
01153 }
01154 }
01155 return;
01156 }
01157
01158 _grow_town_result = GROWTH_SEARCH_STOPPED;
01159 }
01160
01161
01162 if (IsWaterTile(tile)) return;
01163
01164
01165 rcmd = CleanUpRoadBits(tile, rcmd);
01166 if (rcmd == ROAD_NONE) return;
01167
01168
01169
01170
01171 if (GrowTownWithBridge(t1, tile, target_dir)) return;
01172
01173 GrowTownWithRoad(t1, tile, rcmd);
01174 }
01175
01181 static int GrowTownAtRoad(Town *t, TileIndex tile)
01182 {
01183
01184
01185
01186 DiagDirection target_dir = DIAGDIR_END;
01187
01188 assert(tile < MapSize());
01189
01190
01191
01192
01193 switch (t->layout) {
01194 case TL_BETTER_ROADS:
01195 _grow_town_result = 10 + t->num_houses * 2 / 9;
01196 break;
01197
01198 case TL_3X3_GRID:
01199 case TL_2X2_GRID:
01200 _grow_town_result = 10 + t->num_houses * 1 / 9;
01201 break;
01202
01203 default:
01204 _grow_town_result = 10 + t->num_houses * 4 / 9;
01205 break;
01206 }
01207
01208 do {
01209 RoadBits cur_rb = GetTownRoadBits(tile);
01210
01211
01212 GrowTownInTile(&tile, cur_rb, target_dir, t);
01213
01214
01215
01216 cur_rb &= ~DiagDirToRoadBits(ReverseDiagDir(target_dir));
01217 if (cur_rb == ROAD_NONE)
01218 return _grow_town_result;
01219
01220
01221
01222 do target_dir = RandomDiagDir(); while (!(cur_rb & DiagDirToRoadBits(target_dir)));
01223 tile = TileAddByDiagDir(tile, target_dir);
01224
01225 if (IsTileType(tile, MP_ROAD) && !IsRoadDepot(tile) && HasTileRoadType(tile, ROADTYPE_ROAD)) {
01226
01227 if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN) && GetTownByTile(tile) != t) {
01228 _grow_town_result = GROWTH_SUCCEED;
01229 } else if (IsRoadOwner(tile, ROADTYPE_ROAD, OWNER_NONE) && _game_mode == GM_EDITOR) {
01230
01231
01232 SetRoadOwner(tile, ROADTYPE_ROAD, OWNER_TOWN);
01233 SetTownIndex(tile, t->index);
01234 }
01235 }
01236
01237
01238 } while (--_grow_town_result >= 0);
01239
01240 return (_grow_town_result == -2);
01241 }
01242
01250 static RoadBits GenRandomRoadBits()
01251 {
01252 uint32 r = Random();
01253 uint a = GB(r, 0, 2);
01254 uint b = GB(r, 8, 2);
01255 if (a == b) b ^= 2;
01256 return (RoadBits)((ROAD_NW << a) + (ROAD_NW << b));
01257 }
01258
01263 static bool GrowTown(Town *t)
01264 {
01265 static const TileIndexDiffC _town_coord_mod[] = {
01266 {-1, 0},
01267 { 1, 1},
01268 { 1, -1},
01269 {-1, -1},
01270 {-1, 0},
01271 { 0, 2},
01272 { 2, 0},
01273 { 0, -2},
01274 {-1, -1},
01275 {-2, 2},
01276 { 2, 2},
01277 { 2, -2},
01278 { 0, 0}
01279 };
01280
01281
01282 CompanyID old_company = _current_company;
01283 _current_company = OWNER_TOWN;
01284
01285 TileIndex tile = t->xy;
01286
01287
01288 const TileIndexDiffC *ptr;
01289 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01290 if (GetTownRoadBits(tile) != ROAD_NONE) {
01291 int r = GrowTownAtRoad(t, tile);
01292 _current_company = old_company;
01293 return r != 0;
01294 }
01295 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01296 }
01297
01298
01299
01300 if (_settings_game.economy.allow_town_roads || _generating_world) {
01301 tile = t->xy;
01302 for (ptr = _town_coord_mod; ptr != endof(_town_coord_mod); ++ptr) {
01303
01304 if (!IsTileType(tile, MP_HOUSE) && GetTileSlope(tile, NULL) == SLOPE_FLAT) {
01305 if (CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR))) {
01306 DoCommand(tile, GenRandomRoadBits(), t->index, DC_EXEC | DC_AUTO, CMD_BUILD_ROAD);
01307 _current_company = old_company;
01308 return true;
01309 }
01310 }
01311 tile = TILE_ADD(tile, ToTileIndexDiff(*ptr));
01312 }
01313 }
01314
01315 _current_company = old_company;
01316 return false;
01317 }
01318
01319 void UpdateTownRadius(Town *t)
01320 {
01321 static const uint32 _town_squared_town_zone_radius_data[23][5] = {
01322 { 4, 0, 0, 0, 0},
01323 { 16, 0, 0, 0, 0},
01324 { 25, 0, 0, 0, 0},
01325 { 36, 0, 0, 0, 0},
01326 { 49, 0, 4, 0, 0},
01327 { 64, 0, 4, 0, 0},
01328 { 64, 0, 9, 0, 1},
01329 { 64, 0, 9, 0, 4},
01330 { 64, 0, 16, 0, 4},
01331 { 81, 0, 16, 0, 4},
01332 { 81, 0, 16, 0, 4},
01333 { 81, 0, 25, 0, 9},
01334 { 81, 36, 25, 0, 9},
01335 { 81, 36, 25, 16, 9},
01336 { 81, 49, 0, 25, 9},
01337 { 81, 64, 0, 25, 9},
01338 { 81, 64, 0, 36, 9},
01339 { 81, 64, 0, 36, 16},
01340 {100, 81, 0, 49, 16},
01341 {100, 81, 0, 49, 25},
01342 {121, 81, 0, 49, 25},
01343 {121, 81, 0, 49, 25},
01344 {121, 81, 0, 49, 36},
01345 };
01346
01347 if (t->num_houses < 92) {
01348 memcpy(t->squared_town_zone_radius, _town_squared_town_zone_radius_data[t->num_houses / 4], sizeof(t->squared_town_zone_radius));
01349 } else {
01350 int mass = t->num_houses / 8;
01351
01352
01353
01354 t->squared_town_zone_radius[0] = mass * 15 - 40;
01355 t->squared_town_zone_radius[1] = mass * 9 - 15;
01356 t->squared_town_zone_radius[2] = 0;
01357 t->squared_town_zone_radius[3] = mass * 5 - 5;
01358 t->squared_town_zone_radius[4] = mass * 3 + 5;
01359 }
01360 }
01361
01362 extern int _nb_orig_names;
01363
01368 struct TownNameParams {
01369 uint32 grfid;
01370 uint16 townnametype;
01371 bool grf;
01372
01373 TownNameParams(byte town_name)
01374 {
01375 this->grf = town_name >= _nb_orig_names;
01376 this->grfid = this->grf ? GetGRFTownNameId(town_name - _nb_orig_names) : 0;
01377 this->townnametype = this->grf ? GetGRFTownNameType(town_name - _nb_orig_names) : SPECSTR_TOWNNAME_START + town_name;
01378 }
01379 };
01380
01387 static bool VerifyTownName(uint32 r, const TownNameParams *par)
01388 {
01389
01390
01391 char buf1[MAX_LENGTH_TOWN_NAME_BYTES + MAX_CHAR_LENGTH];
01392 char buf2[MAX_LENGTH_TOWN_NAME_BYTES + MAX_CHAR_LENGTH];
01393
01394 SetDParam(0, r);
01395 if (par->grf && par->grfid != 0) {
01396 GRFTownNameGenerate(buf1, par->grfid, par->townnametype, r, lastof(buf1));
01397 } else {
01398 GetString(buf1, par->townnametype, lastof(buf1));
01399 }
01400
01401
01402 if (strlen(buf1) >= MAX_LENGTH_TOWN_NAME_BYTES) return false;
01403
01404 const Town *t;
01405 FOR_ALL_TOWNS(t) {
01406
01407
01408 SetDParam(0, t->index);
01409 GetString(buf2, STR_TOWN, lastof(buf2));
01410 if (strcmp(buf1, buf2) == 0) return false;
01411 }
01412
01413 return true;
01414 }
01415
01421 bool GenerateTownName(uint32 *townnameparts)
01422 {
01423
01424
01425
01426
01427
01428 int tries = 1000;
01429 TownNameParams par(_settings_game.game_creation.town_name);
01430
01431 assert(townnameparts != NULL);
01432
01433 for (;;) {
01434 uint32 r = InteractiveRandom();
01435
01436 if (!VerifyTownName(r, &par)) {
01437 if (tries-- < 0) return false;
01438 continue;
01439 }
01440
01441 *townnameparts = r;
01442 return true;
01443 }
01444 }
01445
01446 void UpdateTownMaxPass(Town *t)
01447 {
01448 t->max_pass = t->population >> 3;
01449 t->max_mail = t->population >> 4;
01450 }
01451
01461 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01462 {
01463 t->xy = tile;
01464 t->num_houses = 0;
01465 t->time_until_rebuild = 10;
01466 UpdateTownRadius(t);
01467 t->flags12 = 0;
01468 t->population = 0;
01469 t->grow_counter = 0;
01470 t->growth_rate = 250;
01471 t->new_max_pass = 0;
01472 t->new_max_mail = 0;
01473 t->new_act_pass = 0;
01474 t->new_act_mail = 0;
01475 t->max_pass = 0;
01476 t->max_mail = 0;
01477 t->act_pass = 0;
01478 t->act_mail = 0;
01479
01480 t->pct_pass_transported = 0;
01481 t->pct_mail_transported = 0;
01482 t->fund_buildings_months = 0;
01483 t->new_act_food = 0;
01484 t->new_act_water = 0;
01485 t->act_food = 0;
01486 t->act_water = 0;
01487
01488 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01489
01490 t->have_ratings = 0;
01491 t->exclusivity = INVALID_COMPANY;
01492 t->exclusive_counter = 0;
01493 t->statues = 0;
01494
01495 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01496
01497 t->townnamegrfid = 0;
01498 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01499 } else {
01500
01501 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01502 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01503 }
01504 t->townnameparts = townnameparts;
01505
01506 UpdateTownVirtCoord(t);
01507 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01508
01509 t->InitializeLayout(layout);
01510
01511 t->larger_town = city;
01512
01513 int x = (int)size * 16 + 3;
01514 if (size == TS_RANDOM) x = (Random() & 0xF) + 8;
01515 if (city) x *= _settings_game.economy.initial_city_size;
01516
01517 t->num_houses += x;
01518 UpdateTownRadius(t);
01519
01520 int i = x * 4;
01521 do {
01522 GrowTown(t);
01523 } while (--i);
01524
01525 t->num_houses -= x;
01526 UpdateTownRadius(t);
01527 UpdateTownMaxPass(t);
01528 UpdateAirportsNoise();
01529 }
01530
01541 CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01542 {
01543
01544 if (_game_mode != GM_EDITOR) return CMD_ERROR;
01545
01546 TownSize size = (TownSize)GB(p1, 0, 2);
01547 bool city = HasBit(p1, 2);
01548 TownLayout layout = (TownLayout)GB(p1, 3, 3);
01549 TownNameParams par(_settings_game.game_creation.town_name);
01550 uint32 townnameparts = p2;
01551
01552 if (size > TS_RANDOM) return CMD_ERROR;
01553 if (layout > TL_RANDOM) return CMD_ERROR;
01554 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
01555
01556
01557 if (DistanceFromEdge(tile) < 12) {
01558 return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
01559 }
01560
01561
01562 if (IsCloseToTown(tile, 20)) {
01563 return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
01564 }
01565
01566
01567 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
01568 return_cmd_error(STR_0239_SITE_UNSUITABLE);
01569 }
01570
01571
01572 if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
01573
01574
01575 if (flags & DC_EXEC) {
01576 Town *t = new Town(tile);
01577 _generating_world = true;
01578 UpdateNearestTownForRoadTiles(true);
01579 DoCreateTown(t, tile, townnameparts, size, city, layout);
01580 UpdateNearestTownForRoadTiles(false);
01581 _generating_world = false;
01582 }
01583 return CommandCost();
01584 }
01585
01586 Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layout)
01587 {
01588 if (!Town::CanAllocateItem()) return NULL;
01589
01590 do {
01591
01592 TileIndex tile = RandomTile();
01593 switch (layout) {
01594 case TL_2X2_GRID:
01595 tile = TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01596 break;
01597 case TL_3X3_GRID:
01598 tile = TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01599 break;
01600 default: break;
01601 }
01602 if (DistanceFromEdge(tile) < 20) continue;
01603
01604
01605 if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
01606
01607
01608 if (IsCloseToTown(tile, 20)) continue;
01609
01610 uint32 townnameparts;
01611
01612
01613 if (!GenerateTownName(&townnameparts)) break;
01614
01615
01616 Town *t = new Town(tile);
01617
01618 DoCreateTown(t, tile, townnameparts, size, city, layout);
01619 return t;
01620 } while (--attempts != 0);
01621
01622 return NULL;
01623 }
01624
01625 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01626
01633 bool GenerateTowns(TownLayout layout)
01634 {
01635 uint num = 0;
01636 uint difficulty = _settings_game.difficulty.number_towns;
01637 uint n = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01638
01639 SetGeneratingWorldProgress(GWP_TOWN, n);
01640
01641
01642
01643
01644 do {
01645 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01646 IncreaseGeneratingWorldProgress(GWP_TOWN);
01647
01648 if (CreateRandomTown(20, TS_RANDOM, city, layout) != NULL) num++;
01649 } while (--n);
01650
01651
01652
01653 if (num == 0 && CreateRandomTown(10000, TS_RANDOM, _settings_game.economy.larger_towns != 0, layout) == NULL) {
01654 if (GetNumTowns() == 0) {
01655 if (_game_mode != GM_EDITOR) {
01656 extern StringID _switch_mode_errorstr;
01657 _switch_mode_errorstr = STR_COULD_NOT_CREATE_TOWN;
01658 }
01659 }
01660 return false;
01661 }
01662 return true;
01663 }
01664
01665
01671 HouseZonesBits GetTownRadiusGroup(const Town *t, TileIndex tile)
01672 {
01673 uint dist = DistanceSquare(tile, t->xy);
01674
01675 if (t->fund_buildings_months && dist <= 25) return HZB_TOWN_CENTRE;
01676
01677 HouseZonesBits smallest = HZB_TOWN_EDGE;
01678 for (HouseZonesBits i = HZB_BEGIN; i < HZB_END; i++) {
01679 if (dist < t->squared_town_zone_radius[i]) smallest = i;
01680 }
01681
01682 return smallest;
01683 }
01684
01695 static inline void ClearMakeHouseTile(TileIndex tile, Town *t, byte counter, byte stage, HouseID type, byte random_bits)
01696 {
01697 CommandCost cc = DoCommand(tile, 0, 0, DC_EXEC | DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR);
01698
01699 assert(CmdSucceeded(cc));
01700
01701 IncreaseBuildingCount(t, type);
01702 MakeHouseTile(tile, t->index, counter, stage, type, random_bits);
01703 if (GetHouseSpecs(type)->building_flags & BUILDING_IS_ANIMATED) AddAnimatedTile(tile);
01704
01705 MarkTileDirtyByTile(tile);
01706 }
01707
01708
01719 static void MakeTownHouse(TileIndex t, Town *town, byte counter, byte stage, HouseID type, byte random_bits)
01720 {
01721 BuildingFlags size = GetHouseSpecs(type)->building_flags;
01722
01723 ClearMakeHouseTile(t, town, counter, stage, type, random_bits);
01724 if (size & BUILDING_2_TILES_Y) ClearMakeHouseTile(t + TileDiffXY(0, 1), town, counter, stage, ++type, random_bits);
01725 if (size & BUILDING_2_TILES_X) ClearMakeHouseTile(t + TileDiffXY(1, 0), town, counter, stage, ++type, random_bits);
01726 if (size & BUILDING_HAS_4_TILES) ClearMakeHouseTile(t + TileDiffXY(1, 1), town, counter, stage, ++type, random_bits);
01727 }
01728
01729
01738 static inline bool CanBuildHouseHere(TileIndex tile, TownID town, bool noslope)
01739 {
01740
01741 Slope slope = GetTileSlope(tile, NULL);
01742 if ((noslope && slope != SLOPE_FLAT) || IsSteepSlope(slope)) return false;
01743
01744
01745 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
01746
01747
01748 if (IsTileType(tile, MP_HOUSE) && GetTownIndex(tile) != town) return false;
01749
01750
01751 return CmdSucceeded(DoCommand(tile, 0, 0, DC_AUTO | DC_NO_WATER, CMD_LANDSCAPE_CLEAR));
01752 }
01753
01754
01764 static inline bool CheckBuildHouseSameZ(TileIndex tile, TownID town, uint z, bool noslope)
01765 {
01766 if (!CanBuildHouseHere(tile, town, noslope)) return false;
01767
01768
01769 if (GetTileMaxZ(tile) != z) return false;
01770
01771 return true;
01772 }
01773
01774
01784 static bool CheckFree2x2Area(TileIndex tile, TownID town, uint z, bool noslope)
01785 {
01786
01787 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01788
01789 for (DiagDirection d = DIAGDIR_SE; d < DIAGDIR_END; d++) {
01790 tile += TileOffsByDiagDir(d);
01791 if (!CheckBuildHouseSameZ(tile, town, z, noslope)) return false;
01792 }
01793
01794 return true;
01795 }
01796
01797
01805 static inline bool TownLayoutAllowsHouseHere(Town *t, TileIndex tile)
01806 {
01807
01808 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01809
01810 TileIndexDiffC grid_pos = TileIndexToTileIndexDiffC(t->xy, tile);
01811
01812 switch (t->layout) {
01813 case TL_2X2_GRID:
01814 if ((grid_pos.x % 3) == 0 || (grid_pos.y % 3) == 0) return false;
01815 break;
01816
01817 case TL_3X3_GRID:
01818 if ((grid_pos.x % 4) == 0 || (grid_pos.y % 4) == 0) return false;
01819 break;
01820
01821 default:
01822 break;
01823 }
01824
01825 return true;
01826 }
01827
01828
01836 static inline bool TownLayoutAllows2x2HouseHere(Town *t, TileIndex tile)
01837 {
01838
01839 if (!_settings_game.economy.allow_town_roads && !_generating_world) return true;
01840
01841
01842
01843 uint dx = MapSize() + TileX(t->xy) - TileX(tile);
01844 uint dy = MapSize() + TileY(t->xy) - TileY(tile);
01845
01846 switch (t->layout) {
01847 case TL_2X2_GRID:
01848 if ((dx % 3) != 0 || (dy % 3) != 0) return false;
01849 break;
01850
01851 case TL_3X3_GRID:
01852 if ((dx % 4) < 2 || (dy % 4) < 2) return false;
01853 break;
01854
01855 default:
01856 break;
01857 }
01858
01859 return true;
01860 }
01861
01862
01872 static bool CheckTownBuild2House(TileIndex *tile, Town *t, uint maxz, bool noslope, DiagDirection second)
01873 {
01874
01875
01876 TileIndex tile2 = *tile + TileOffsByDiagDir(second);
01877 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) return true;
01878
01879 tile2 = *tile + TileOffsByDiagDir(ReverseDiagDir(second));
01880 if (TownLayoutAllowsHouseHere(t, tile2) && CheckBuildHouseSameZ(tile2, t->index, maxz, noslope)) {
01881 *tile = tile2;
01882 return true;
01883 }
01884
01885 return false;
01886 }
01887
01888
01897 static bool CheckTownBuild2x2House(TileIndex *tile, Town *t, uint maxz, bool noslope)
01898 {
01899 TileIndex tile2 = *tile;
01900
01901 for (DiagDirection d = DIAGDIR_SE;;d++) {
01902 if (TownLayoutAllows2x2HouseHere(t, tile2) && CheckFree2x2Area(tile2, t->index, maxz, noslope)) {
01903 *tile = tile2;
01904 return true;
01905 }
01906 if (d == DIAGDIR_END) break;
01907 tile2 += TileOffsByDiagDir(ReverseDiagDir(d));
01908 }
01909
01910 return false;
01911 }
01912
01913
01920 static bool BuildTownHouse(Town *t, TileIndex tile)
01921 {
01922
01923 if (!TownLayoutAllowsHouseHere(t, tile)) return false;
01924
01925
01926 if (!CanBuildHouseHere(tile, t->index, false)) return false;
01927
01928 uint z;
01929 Slope slope = GetTileSlope(tile, &z);
01930
01931
01932
01933 HouseZonesBits rad = GetTownRadiusGroup(t, tile);
01934
01935
01936 int land = _settings_game.game_creation.landscape;
01937 if (land == LT_ARCTIC && z >= _settings_game.game_creation.snow_line) land = -1;
01938
01939 uint bitmask = (1 << rad) + (1 << (land + 12));
01940
01941
01942
01943
01944 HouseID houses[HOUSE_MAX];
01945 uint num = 0;
01946 uint probs[HOUSE_MAX];
01947 uint probability_max = 0;
01948
01949
01950 for (uint i = 0; i < HOUSE_MAX; i++) {
01951 const HouseSpec *hs = GetHouseSpecs(i);
01952
01953
01954 if ((~hs->building_availability & bitmask) != 0 || !hs->enabled) continue;
01955
01956
01957 if (hs->class_id != HOUSE_NO_CLASS) {
01958
01959 if (t->building_counts.class_count[hs->class_id] == UINT16_MAX) continue;
01960 } else {
01961
01962 if (t->building_counts.id_count[i] == UINT16_MAX) continue;
01963 }
01964
01965
01966 uint cur_prob = (_loaded_newgrf_features.has_newhouses ? hs->probability : 1);
01967 probability_max += cur_prob;
01968 probs[num] = cur_prob;
01969 houses[num++] = (HouseID)i;
01970 }
01971
01972 uint maxz = GetTileMaxZ(tile);
01973
01974 while (probability_max > 0) {
01975 uint r = RandomRange(probability_max);
01976 uint i;
01977 for (i = 0; i < num; i++) {
01978 if (probs[i] > r) break;
01979 r -= probs[i];
01980 }
01981
01982 HouseID house = houses[i];
01983 probability_max -= probs[i];
01984
01985
01986 num--;
01987 houses[i] = houses[num];
01988 probs[i] = probs[num];
01989
01990 const HouseSpec *hs = GetHouseSpecs(house);
01991
01992 if (_loaded_newgrf_features.has_newhouses) {
01993 if (hs->override != 0) {
01994 house = hs->override;
01995 hs = GetHouseSpecs(house);
01996 }
01997
01998 if ((hs->extra_flags & BUILDING_IS_HISTORICAL) && !_generating_world && _game_mode != GM_EDITOR) continue;
01999 }
02000
02001 if (_cur_year < hs->min_year || _cur_year > hs->max_year) continue;
02002
02003
02004 uint oneof = 0;
02005
02006 if (hs->building_flags & BUILDING_IS_CHURCH) {
02007 SetBit(oneof, TOWN_HAS_CHURCH);
02008 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02009 SetBit(oneof, TOWN_HAS_STADIUM);
02010 }
02011
02012 if (HASBITS(t->flags12, oneof)) continue;
02013
02014
02015 bool noslope = (hs->building_flags & TILE_NOT_SLOPED) != 0;
02016 if (noslope && slope != SLOPE_FLAT) continue;
02017
02018 if (hs->building_flags & TILE_SIZE_2x2) {
02019 if (!CheckTownBuild2x2House(&tile, t, maxz, noslope)) continue;
02020 } else if (hs->building_flags & TILE_SIZE_2x1) {
02021 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SW)) continue;
02022 } else if (hs->building_flags & TILE_SIZE_1x2) {
02023 if (!CheckTownBuild2House(&tile, t, maxz, noslope, DIAGDIR_SE)) continue;
02024 } else {
02025
02026 }
02027
02028 if (HasBit(hs->callback_mask, CBM_HOUSE_ALLOW_CONSTRUCTION)) {
02029 uint16 callback_res = GetHouseCallback(CBID_HOUSE_ALLOW_CONSTRUCTION, 0, 0, house, t, tile);
02030 if (callback_res != CALLBACK_FAILED && GB(callback_res, 0, 8) == 0) continue;
02031 }
02032
02033
02034 t->num_houses++;
02035
02036
02037 t->flags12 |= oneof;
02038
02039 byte construction_counter = 0;
02040 byte construction_stage = 0;
02041
02042 if (_generating_world || _game_mode == GM_EDITOR) {
02043 uint32 r = Random();
02044
02045 construction_stage = TOWN_HOUSE_COMPLETED;
02046 if (Chance16(1, 7)) construction_stage = GB(r, 0, 2);
02047
02048 if (construction_stage == TOWN_HOUSE_COMPLETED) {
02049 ChangePopulation(t, hs->population);
02050 } else {
02051 construction_counter = GB(r, 2, 2);
02052 }
02053 }
02054
02055 MakeTownHouse(tile, t, construction_counter, construction_stage, house, Random());
02056
02057 return true;
02058 }
02059
02060 return false;
02061 }
02062
02069 static void DoClearTownHouseHelper(TileIndex tile, Town *t, HouseID house)
02070 {
02071 assert(IsTileType(tile, MP_HOUSE));
02072 DecreaseBuildingCount(t, house);
02073 DoClearSquare(tile);
02074 DeleteAnimatedTile(tile);
02075 }
02076
02084 TileIndexDiff GetHouseNorthPart(HouseID &house)
02085 {
02086 if (house >= 3) {
02087 if (GetHouseSpecs(house - 1)->building_flags & TILE_SIZE_2x1) {
02088 house--;
02089 return TileDiffXY(-1, 0);
02090 } else if (GetHouseSpecs(house - 1)->building_flags & BUILDING_2_TILES_Y) {
02091 house--;
02092 return TileDiffXY(0, -1);
02093 } else if (GetHouseSpecs(house - 2)->building_flags & BUILDING_HAS_4_TILES) {
02094 house -= 2;
02095 return TileDiffXY(-1, 0);
02096 } else if (GetHouseSpecs(house - 3)->building_flags & BUILDING_HAS_4_TILES) {
02097 house -= 3;
02098 return TileDiffXY(-1, -1);
02099 }
02100 }
02101 return 0;
02102 }
02103
02104 void ClearTownHouse(Town *t, TileIndex tile)
02105 {
02106 assert(IsTileType(tile, MP_HOUSE));
02107
02108 HouseID house = GetHouseType(tile);
02109
02110
02111 tile += GetHouseNorthPart(house);
02112
02113 const HouseSpec *hs = GetHouseSpecs(house);
02114
02115
02116 if (IsHouseCompleted(tile)) {
02117 ChangePopulation(t, -hs->population);
02118 }
02119
02120 t->num_houses--;
02121
02122
02123 if (hs->building_flags & BUILDING_IS_CHURCH) {
02124 ClrBit(t->flags12, TOWN_HAS_CHURCH);
02125 } else if (hs->building_flags & BUILDING_IS_STADIUM) {
02126 ClrBit(t->flags12, TOWN_HAS_STADIUM);
02127 }
02128
02129
02130 uint eflags = hs->building_flags;
02131 DoClearTownHouseHelper(tile, t, house);
02132 if (eflags & BUILDING_2_TILES_Y) DoClearTownHouseHelper(tile + TileDiffXY(0, 1), t, ++house);
02133 if (eflags & BUILDING_2_TILES_X) DoClearTownHouseHelper(tile + TileDiffXY(1, 0), t, ++house);
02134 if (eflags & BUILDING_HAS_4_TILES) DoClearTownHouseHelper(tile + TileDiffXY(1, 1), t, ++house);
02135 }
02136
02137 static bool IsUniqueTownName(const char *name)
02138 {
02139 const Town *t;
02140
02141 FOR_ALL_TOWNS(t) {
02142 if (t->name != NULL && strcmp(t->name, name) == 0) return false;
02143 }
02144
02145 return true;
02146 }
02147
02154 CommandCost CmdRenameTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02155 {
02156 if (!IsValidTownID(p1)) return CMD_ERROR;
02157
02158 bool reset = StrEmpty(text);
02159
02160 if (!reset) {
02161 if (strlen(text) >= MAX_LENGTH_TOWN_NAME_BYTES) return CMD_ERROR;
02162 if (!IsUniqueTownName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
02163 }
02164
02165 if (flags & DC_EXEC) {
02166 Town *t = GetTown(p1);
02167
02168 free(t->name);
02169 t->name = reset ? NULL : strdup(text);
02170
02171 UpdateTownVirtCoord(t);
02172 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 1);
02173 UpdateAllStationVirtCoord();
02174 UpdateAllWaypointSigns();
02175 MarkWholeScreenDirty();
02176 }
02177 return CommandCost();
02178 }
02179
02181 void ExpandTown(Town *t)
02182 {
02183
02184
02185 static bool warned_no_roads = false;
02186 if (!_settings_game.economy.allow_town_roads && !warned_no_roads) {
02187 ShowErrorMessage(INVALID_STRING_ID, STR_TOWN_EXPAND_WARN_NO_ROADS, 0, 0);
02188 warned_no_roads = true;
02189 }
02190
02191
02192 uint amount = RandomRange(ClampToU16(t->num_houses / 10)) + 3;
02193 t->num_houses += amount;
02194 UpdateTownRadius(t);
02195
02196 uint n = amount * 10;
02197 do GrowTown(t); while (--n);
02198
02199 t->num_houses -= amount;
02200 UpdateTownRadius(t);
02201
02202 UpdateTownMaxPass(t);
02203 }
02204
02205 extern const byte _town_action_costs[8] = {
02206 2, 4, 9, 35, 48, 53, 117, 175
02207 };
02208
02209 static void TownActionAdvertiseSmall(Town *t)
02210 {
02211 ModifyStationRatingAround(t->xy, _current_company, 0x40, 10);
02212 }
02213
02214 static void TownActionAdvertiseMedium(Town *t)
02215 {
02216 ModifyStationRatingAround(t->xy, _current_company, 0x70, 15);
02217 }
02218
02219 static void TownActionAdvertiseLarge(Town *t)
02220 {
02221 ModifyStationRatingAround(t->xy, _current_company, 0xA0, 20);
02222 }
02223
02224 static void TownActionRoadRebuild(Town *t)
02225 {
02226 t->road_build_months = 6;
02227
02228 char company_name[MAX_LENGTH_COMPANY_NAME_BYTES];
02229 SetDParam(0, _current_company);
02230 GetString(company_name, STR_COMPANY_NAME, lastof(company_name));
02231
02232 char *cn = strdup(company_name);
02233 SetDParam(0, t->index);
02234 SetDParamStr(1, cn);
02235
02236 AddNewsItem(STR_2055_TRAFFIC_CHAOS_IN_ROAD_REBUILDING, NS_GENERAL, t->xy, 0, cn);
02237 }
02238
02239 static bool DoBuildStatueOfCompany(TileIndex tile, TownID town_id)
02240 {
02241
02242 if (IsSteepSlope(GetTileSlope(tile, NULL))) return false;
02243
02244 if (MayHaveBridgeAbove(tile) && IsBridgeAbove(tile)) return false;
02245
02246 if (!IsTileType(tile, MP_HOUSE) &&
02247 !IsTileType(tile, MP_CLEAR) &&
02248 !IsTileType(tile, MP_TREES)) {
02249 return false;
02250 }
02251
02252 CompanyID old = _current_company;
02253 _current_company = OWNER_NONE;
02254 CommandCost r = DoCommand(tile, 0, 0, DC_EXEC, CMD_LANDSCAPE_CLEAR);
02255 _current_company = old;
02256
02257 if (CmdFailed(r)) return false;
02258
02259 MakeStatue(tile, _current_company, town_id);
02260 MarkTileDirtyByTile(tile);
02261
02262 return true;
02263 }
02264
02271 static bool SearchTileForStatue(TileIndex tile, void *user_data)
02272 {
02273 TownID *town_id = (TownID *)user_data;
02274 return DoBuildStatueOfCompany(tile, *town_id);
02275 }
02276
02282 static void TownActionBuildStatue(Town *t)
02283 {
02284 TileIndex tile = t->xy;
02285
02286 if (CircularTileSearch(&tile, 9, SearchTileForStatue, &t->index)) {
02287 SetBit(t->statues, _current_company);
02288 }
02289 }
02290
02291 static void TownActionFundBuildings(Town *t)
02292 {
02293
02294 t->grow_counter = 1;
02295
02296 SetBit(t->flags12, TOWN_IS_FUNDED);
02297
02298 t->fund_buildings_months = 3;
02299 }
02300
02301 static void TownActionBuyRights(Town *t)
02302 {
02303
02304 if (!_settings_game.economy.exclusive_rights) return;
02305
02306 t->exclusive_counter = 12;
02307 t->exclusivity = _current_company;
02308
02309 ModifyStationRatingAround(t->xy, _current_company, 130, 17);
02310 }
02311
02312 static void TownActionBribe(Town *t)
02313 {
02314 if (Chance16(1, 14)) {
02315
02316 t->unwanted[_current_company] = 6;
02317
02318
02319 Station *st;
02320 FOR_ALL_STATIONS(st) {
02321 if (st->town == t && st->owner == _current_company) {
02322 for (CargoID i = 0; i < NUM_CARGO; i++) st->goods[i].rating = 0;
02323 }
02324 }
02325
02326
02327
02328 if (IsLocalCompany()) ShowErrorMessage(STR_BRIBE_FAILED_2, STR_BRIBE_FAILED, 0, 0);
02329
02330
02331
02332
02333
02334 if (t->ratings[_current_company] > RATING_BRIBE_DOWN_TO) {
02335 t->ratings[_current_company] = RATING_BRIBE_DOWN_TO;
02336 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02337 }
02338 } else {
02339 ChangeTownRating(t, RATING_BRIBE_UP_STEP, RATING_BRIBE_MAXIMUM, DC_EXEC);
02340 }
02341 }
02342
02343 typedef void TownActionProc(Town *t);
02344 static TownActionProc * const _town_action_proc[] = {
02345 TownActionAdvertiseSmall,
02346 TownActionAdvertiseMedium,
02347 TownActionAdvertiseLarge,
02348 TownActionRoadRebuild,
02349 TownActionBuildStatue,
02350 TownActionFundBuildings,
02351 TownActionBuyRights,
02352 TownActionBribe
02353 };
02354
02355 enum TownActions {
02356 TACT_NONE = 0x00,
02357
02358 TACT_ADVERTISE_SMALL = 0x01,
02359 TACT_ADVERTISE_MEDIUM = 0x02,
02360 TACT_ADVERTISE_LARGE = 0x04,
02361 TACT_ROAD_REBUILD = 0x08,
02362 TACT_BUILD_STATUE = 0x10,
02363 TACT_FOUND_BUILDINGS = 0x20,
02364 TACT_BUY_RIGHTS = 0x40,
02365 TACT_BRIBE = 0x80,
02366
02367 TACT_ADVERTISE = TACT_ADVERTISE_SMALL | TACT_ADVERTISE_MEDIUM | TACT_ADVERTISE_LARGE,
02368 TACT_CONSTRUCTION = TACT_ROAD_REBUILD | TACT_BUILD_STATUE | TACT_FOUND_BUILDINGS,
02369 TACT_FUNDS = TACT_BUY_RIGHTS | TACT_BRIBE,
02370 TACT_ALL = TACT_ADVERTISE | TACT_CONSTRUCTION | TACT_FUNDS,
02371 };
02372
02373 DECLARE_ENUM_AS_BIT_SET(TownActions);
02374
02381 uint GetMaskOfTownActions(int *nump, CompanyID cid, const Town *t)
02382 {
02383 int num = 0;
02384 TownActions buttons = TACT_NONE;
02385
02386
02387 if (cid != COMPANY_SPECTATOR && !(_settings_game.economy.bribe && t->unwanted[cid])) {
02388
02389
02390 Money avail = GetCompany(cid)->money + _price.station_value * 200;
02391 Money ref = _price.build_industry >> 8;
02392
02393
02394
02395 for (uint i = 0; i != lengthof(_town_action_costs); i++) {
02396 const TownActions cur = (TownActions)(1 << i);
02397
02398
02399 if (cur == TACT_BRIBE && (!_settings_game.economy.bribe || t->ratings[cid] >= RATING_BRIBE_MAXIMUM))
02400 continue;
02401
02402
02403 if (cur == TACT_BUY_RIGHTS && !_settings_game.economy.exclusive_rights)
02404 continue;
02405
02406
02407 if (cur == TACT_BUILD_STATUE && HasBit(t->statues, cid))
02408 continue;
02409
02410 if (avail >= _town_action_costs[i] * ref) {
02411 buttons |= cur;
02412 num++;
02413 }
02414 }
02415 }
02416
02417 if (nump != NULL) *nump = num;
02418 return buttons;
02419 }
02420
02429 CommandCost CmdDoTownAction(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02430 {
02431 if (!IsValidTownID(p1) || p2 >= lengthof(_town_action_proc)) return CMD_ERROR;
02432
02433 Town *t = GetTown(p1);
02434
02435 if (!HasBit(GetMaskOfTownActions(NULL, _current_company, t), p2)) return CMD_ERROR;
02436
02437 CommandCost cost(EXPENSES_OTHER, (_price.build_industry >> 8) * _town_action_costs[p2]);
02438
02439 if (flags & DC_EXEC) {
02440 _town_action_proc[p2](t);
02441 InvalidateWindow(WC_TOWN_AUTHORITY, p1);
02442 }
02443
02444 return cost;
02445 }
02446
02447 static void UpdateTownGrowRate(Town *t)
02448 {
02449
02450 const Company *c;
02451 FOR_ALL_COMPANIES(c) {
02452 if (t->ratings[c->index] < RATING_GROWTH_MAXIMUM) {
02453 t->ratings[c->index] = min((int)RATING_GROWTH_MAXIMUM, t->ratings[c->index] + RATING_GROWTH_UP_STEP);
02454 }
02455 }
02456
02457 int n = 0;
02458
02459 const Station *st;
02460 FOR_ALL_STATIONS(st) {
02461 if (DistanceSquare(st->xy, t->xy) <= t->squared_town_zone_radius[0]) {
02462 if (st->time_since_load <= 20 || st->time_since_unload <= 20) {
02463 n++;
02464 if (IsValidCompanyID(st->owner)) {
02465 int new_rating = t->ratings[st->owner] + RATING_STATION_UP_STEP;
02466 t->ratings[st->owner] = min(new_rating, INT16_MAX);
02467 }
02468 } else {
02469 if (IsValidCompanyID(st->owner)) {
02470 int new_rating = t->ratings[st->owner] + RATING_STATION_DOWN_STEP;
02471 t->ratings[st->owner] = max(new_rating, INT16_MIN);
02472 }
02473 }
02474 }
02475 }
02476
02477
02478 for (uint i = 0; i < MAX_COMPANIES; i++) {
02479 t->ratings[i] = Clamp(t->ratings[i], RATING_MINIMUM, RATING_MAXIMUM);
02480 }
02481
02482 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02483
02484 ClrBit(t->flags12, TOWN_IS_FUNDED);
02485 if (_settings_game.economy.town_growth_rate == 0 && t->fund_buildings_months == 0) return;
02486
02489 static const uint16 _grow_count_values[2][6] = {
02490 { 120, 120, 120, 100, 80, 60 },
02491 { 320, 420, 300, 220, 160, 100 }
02492 };
02493
02494 uint16 m;
02495
02496 if (t->fund_buildings_months != 0) {
02497 m = _grow_count_values[0][min(n, 5)];
02498 t->fund_buildings_months--;
02499 } else {
02500 m = _grow_count_values[1][min(n, 5)];
02501 if (n == 0 && !Chance16(1, 12)) return;
02502 }
02503
02504 if (_settings_game.game_creation.landscape == LT_ARCTIC) {
02505 if (TilePixelHeight(t->xy) >= GetSnowLine() && t->act_food == 0 && t->population > 90)
02506 return;
02507 } else if (_settings_game.game_creation.landscape == LT_TROPIC) {
02508 if (GetTropicZone(t->xy) == TROPICZONE_DESERT && (t->act_food == 0 || t->act_water == 0) && t->population > 60)
02509 return;
02510 }
02511
02512
02513
02514 uint growth_multiplier = _settings_game.economy.town_growth_rate != 0 ? _settings_game.economy.town_growth_rate - 1 : 1;
02515
02516 m >>= growth_multiplier;
02517 if (t->larger_town) m /= 2;
02518
02519 t->growth_rate = m / (t->num_houses / 50 + 1);
02520 if (m <= t->grow_counter)
02521 t->grow_counter = m;
02522
02523 SetBit(t->flags12, TOWN_IS_FUNDED);
02524 }
02525
02526 static void UpdateTownAmounts(Town *t)
02527 {
02528
02529 t->pct_pass_transported = t->new_act_pass * 256 / (t->new_max_pass + 1);
02530
02531 t->max_pass = t->new_max_pass; t->new_max_pass = 0;
02532 t->act_pass = t->new_act_pass; t->new_act_pass = 0;
02533 t->act_food = t->new_act_food; t->new_act_food = 0;
02534 t->act_water = t->new_act_water; t->new_act_water = 0;
02535
02536
02537 t->pct_mail_transported = t->new_act_mail * 256 / (t->new_max_mail + 1);
02538 t->max_mail = t->new_max_mail; t->new_max_mail = 0;
02539 t->act_mail = t->new_act_mail; t->new_act_mail = 0;
02540
02541 InvalidateWindow(WC_TOWN_VIEW, t->index);
02542 }
02543
02544 static void UpdateTownUnwanted(Town *t)
02545 {
02546 const Company *c;
02547
02548 FOR_ALL_COMPANIES(c) {
02549 if (t->unwanted[c->index] > 0) t->unwanted[c->index]--;
02550 }
02551 }
02552
02558 bool CheckIfAuthorityAllowsNewStation(TileIndex tile, DoCommandFlag flags)
02559 {
02560 if (!IsValidCompanyID(_current_company) || (flags & DC_NO_TEST_TOWN_RATING)) return true;
02561
02562 Town *t = ClosestTownFromTile(tile, _settings_game.economy.dist_local_authority);
02563 if (t == NULL) return true;
02564
02565 if (t->ratings[_current_company] > RATING_VERYPOOR) return true;
02566
02567 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02568 SetDParam(0, t->index);
02569
02570 return false;
02571 }
02572
02573
02574 Town *CalcClosestTownFromTile(TileIndex tile, uint threshold)
02575 {
02576 Town *t;
02577 uint best = threshold;
02578 Town *best_town = NULL;
02579
02580 FOR_ALL_TOWNS(t) {
02581 uint dist = DistanceManhattan(tile, t->xy);
02582 if (dist < best) {
02583 best = dist;
02584 best_town = t;
02585 }
02586 }
02587
02588 return best_town;
02589 }
02590
02591
02592 Town *ClosestTownFromTile(TileIndex tile, uint threshold)
02593 {
02594 switch (GetTileType(tile)) {
02595 case MP_ROAD:
02596 if (!HasTownOwnedRoad(tile)) {
02597 TownID tid = GetTownIndex(tile);
02598 if (tid == (TownID)INVALID_TOWN) {
02599
02600 if (_generating_world) return CalcClosestTownFromTile(tile, threshold);
02601 assert(GetNumTowns() == 0);
02602 return NULL;
02603 }
02604
02605 Town *town = GetTown(tid);
02606 assert(town->IsValid());
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 _total_towns = 0;
02754 }
02755
02756 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02757 {
02758 if (AutoslopeEnabled()) {
02759 HouseID house = GetHouseType(tile);
02760 GetHouseNorthPart(house);
02761 const HouseSpec *hs = GetHouseSpecs(house);
02762
02763
02764 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
02765 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
02766 }
02767
02768 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02769 }
02770
02772 extern const TileTypeProcs _tile_type_town_procs = {
02773 DrawTile_Town,
02774 GetSlopeZ_Town,
02775 ClearTile_Town,
02776 GetAcceptedCargo_Town,
02777 GetTileDesc_Town,
02778 GetTileTrackStatus_Town,
02779 NULL,
02780 AnimateTile_Town,
02781 TileLoop_Town,
02782 ChangeTileOwner_Town,
02783 GetProducedCargo_Town,
02784 NULL,
02785 GetFoundation_Town,
02786 TerraformTile_Town,
02787 };
02788
02789 void ResetHouses()
02790 {
02791 memset(&_house_specs, 0, sizeof(_house_specs));
02792 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
02793
02794
02795 _house_mngr.ResetOverride();
02796 }