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 char buf1[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01391 char buf2[MAX_LENGTH_TOWN_NAME_BYTES + 4 + 1];
01392
01393 SetDParam(0, r);
01394 if (par->grf && par->grfid != 0) {
01395 GRFTownNameGenerate(buf1, par->grfid, par->townnametype, r, lastof(buf1));
01396 } else {
01397 GetString(buf1, par->townnametype, lastof(buf1));
01398 }
01399
01400
01401 if (strlen(buf1) >= MAX_LENGTH_TOWN_NAME_BYTES) return false;
01402
01403 const Town *t;
01404 FOR_ALL_TOWNS(t) {
01405
01406
01407 SetDParam(0, t->index);
01408 GetString(buf2, STR_TOWN, lastof(buf2));
01409 if (strcmp(buf1, buf2) == 0) return false;
01410 }
01411
01412 return true;
01413 }
01414
01420 bool GenerateTownName(uint32 *townnameparts)
01421 {
01422
01423
01424
01425
01426
01427 int tries = 1000;
01428 TownNameParams par(_settings_game.game_creation.town_name);
01429
01430 assert(townnameparts != NULL);
01431
01432 for (;;) {
01433 uint32 r = InteractiveRandom();
01434
01435 if (!VerifyTownName(r, &par)) {
01436 if (tries-- < 0) return false;
01437 continue;
01438 }
01439
01440 *townnameparts = r;
01441 return true;
01442 }
01443 }
01444
01445 void UpdateTownMaxPass(Town *t)
01446 {
01447 t->max_pass = t->population >> 3;
01448 t->max_mail = t->population >> 4;
01449 }
01450
01460 static void DoCreateTown(Town *t, TileIndex tile, uint32 townnameparts, TownSize size, bool city, TownLayout layout)
01461 {
01462 t->xy = tile;
01463 t->num_houses = 0;
01464 t->time_until_rebuild = 10;
01465 UpdateTownRadius(t);
01466 t->flags12 = 0;
01467 t->population = 0;
01468 t->grow_counter = 0;
01469 t->growth_rate = 250;
01470 t->new_max_pass = 0;
01471 t->new_max_mail = 0;
01472 t->new_act_pass = 0;
01473 t->new_act_mail = 0;
01474 t->max_pass = 0;
01475 t->max_mail = 0;
01476 t->act_pass = 0;
01477 t->act_mail = 0;
01478
01479 t->pct_pass_transported = 0;
01480 t->pct_mail_transported = 0;
01481 t->fund_buildings_months = 0;
01482 t->new_act_food = 0;
01483 t->new_act_water = 0;
01484 t->act_food = 0;
01485 t->act_water = 0;
01486
01487 for (uint i = 0; i != MAX_COMPANIES; i++) t->ratings[i] = RATING_INITIAL;
01488
01489 t->have_ratings = 0;
01490 t->exclusivity = INVALID_COMPANY;
01491 t->exclusive_counter = 0;
01492 t->statues = 0;
01493
01494 if (_settings_game.game_creation.town_name < _nb_orig_names) {
01495
01496 t->townnamegrfid = 0;
01497 t->townnametype = SPECSTR_TOWNNAME_START + _settings_game.game_creation.town_name;
01498 } else {
01499
01500 t->townnamegrfid = GetGRFTownNameId(_settings_game.game_creation.town_name - _nb_orig_names);
01501 t->townnametype = GetGRFTownNameType(_settings_game.game_creation.town_name - _nb_orig_names);
01502 }
01503 t->townnameparts = townnameparts;
01504
01505 UpdateTownVirtCoord(t);
01506 InvalidateWindowData(WC_TOWN_DIRECTORY, 0, 0);
01507
01508 t->InitializeLayout(layout);
01509
01510 t->larger_town = city;
01511
01512 int x = (int)size * 16 + 3;
01513 if (size == TS_RANDOM) x = (Random() & 0xF) + 8;
01514 if (city) x *= _settings_game.economy.initial_city_size;
01515
01516 t->num_houses += x;
01517 UpdateTownRadius(t);
01518
01519 int i = x * 4;
01520 do {
01521 GrowTown(t);
01522 } while (--i);
01523
01524 t->num_houses -= x;
01525 UpdateTownRadius(t);
01526 UpdateTownMaxPass(t);
01527 UpdateAirportsNoise();
01528 }
01529
01540 CommandCost CmdBuildTown(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01541 {
01542
01543 if (_game_mode != GM_EDITOR) return CMD_ERROR;
01544
01545 TownSize size = (TownSize)GB(p1, 0, 2);
01546 bool city = HasBit(p1, 2);
01547 TownLayout layout = (TownLayout)GB(p1, 3, 3);
01548 TownNameParams par(_settings_game.game_creation.town_name);
01549 uint32 townnameparts = p2;
01550
01551 if (size > TS_RANDOM) return CMD_ERROR;
01552 if (layout > TL_RANDOM) return CMD_ERROR;
01553 if (!VerifyTownName(townnameparts, &par)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
01554
01555
01556 if (DistanceFromEdge(tile) < 12) {
01557 return_cmd_error(STR_0237_TOO_CLOSE_TO_EDGE_OF_MAP);
01558 }
01559
01560
01561 if (IsCloseToTown(tile, 20)) {
01562 return_cmd_error(STR_0238_TOO_CLOSE_TO_ANOTHER_TOWN);
01563 }
01564
01565
01566 if ((!IsTileType(tile, MP_CLEAR) && !IsTileType(tile, MP_TREES)) || GetTileSlope(tile, NULL) != SLOPE_FLAT) {
01567 return_cmd_error(STR_0239_SITE_UNSUITABLE);
01568 }
01569
01570
01571 if (!Town::CanAllocateItem()) return_cmd_error(STR_023A_TOO_MANY_TOWNS);
01572
01573
01574 if (flags & DC_EXEC) {
01575 Town *t = new Town(tile);
01576 _generating_world = true;
01577 UpdateNearestTownForRoadTiles(true);
01578 DoCreateTown(t, tile, townnameparts, size, city, layout);
01579 UpdateNearestTownForRoadTiles(false);
01580 _generating_world = false;
01581 }
01582 return CommandCost();
01583 }
01584
01585 Town *CreateRandomTown(uint attempts, TownSize size, bool city, TownLayout layout)
01586 {
01587 if (!Town::CanAllocateItem()) return NULL;
01588
01589 do {
01590
01591 TileIndex tile = RandomTile();
01592 switch (layout) {
01593 case TL_2X2_GRID:
01594 tile = TileXY(TileX(tile) - TileX(tile) % 3, TileY(tile) - TileY(tile) % 3);
01595 break;
01596 case TL_3X3_GRID:
01597 tile = TileXY(TileX(tile) & ~3, TileY(tile) & ~3);
01598 break;
01599 default: break;
01600 }
01601 if (DistanceFromEdge(tile) < 20) continue;
01602
01603
01604 if (!IsTileType(tile, MP_CLEAR) || GetTileSlope(tile, NULL) != SLOPE_FLAT) continue;
01605
01606
01607 if (IsCloseToTown(tile, 20)) continue;
01608
01609 uint32 townnameparts;
01610
01611
01612 if (!GenerateTownName(&townnameparts)) break;
01613
01614
01615 Town *t = new Town(tile);
01616
01617 DoCreateTown(t, tile, townnameparts, size, city, layout);
01618 return t;
01619 } while (--attempts != 0);
01620
01621 return NULL;
01622 }
01623
01624 static const byte _num_initial_towns[4] = {5, 11, 23, 46};
01625
01632 bool GenerateTowns(TownLayout layout)
01633 {
01634 uint num = 0;
01635 uint difficulty = _settings_game.difficulty.number_towns;
01636 uint n = (difficulty == (uint)CUSTOM_TOWN_NUMBER_DIFFICULTY) ? _settings_game.game_creation.custom_town_number : ScaleByMapSize(_num_initial_towns[difficulty] + (Random() & 7));
01637
01638 SetGeneratingWorldProgress(GWP_TOWN, n);
01639
01640
01641
01642
01643 do {
01644 bool city = (_settings_game.economy.larger_towns != 0 && Chance16(1, _settings_game.economy.larger_towns));
01645 IncreaseGeneratingWorldProgress(GWP_TOWN);
01646
01647 if (CreateRandomTown(20, TS_RANDOM, city, layout) != NULL) num++;
01648 } while (--n);
01649
01650
01651
01652 if (num == 0 && CreateRandomTown(10000, TS_RANDOM, _settings_game.economy.larger_towns != 0, layout) == NULL) {
01653 if (GetNumTowns() == 0) {
01654 if (_game_mode != GM_EDITOR) {
01655 extern StringID _switch_mode_errorstr;
01656 _switch_mode_errorstr = STR_COULD_NOT_CREATE_TOWN;
01657 }
01658 }
01659 return false;
01660 }
01661 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
02607 if (DistanceManhattan(tile, town->xy) >= threshold) town = NULL;
02608
02609 return town;
02610 }
02611
02612
02613 case MP_HOUSE:
02614 return GetTownByTile(tile);
02615
02616 default:
02617 return CalcClosestTownFromTile(tile, threshold);
02618 }
02619 }
02620
02621 static bool _town_rating_test = false;
02622 SmallMap<const Town *, int, 4> _town_test_ratings;
02623
02624 void SetTownRatingTestMode(bool mode)
02625 {
02626 static int ref_count = 0;
02627 if (mode) {
02628 if (ref_count == 0) {
02629 _town_test_ratings.Clear();
02630 }
02631 ref_count++;
02632 } else {
02633 assert(ref_count > 0);
02634 ref_count--;
02635 }
02636 _town_rating_test = !(ref_count == 0);
02637 }
02638
02639 static int GetRating(const Town *t)
02640 {
02641 if (_town_rating_test) {
02642 SmallMap<const Town *, int>::iterator it = _town_test_ratings.Find(t);
02643 if (it != _town_test_ratings.End()) {
02644 return it->second;
02645 }
02646 }
02647 return t->ratings[_current_company];
02648 }
02649
02657 void ChangeTownRating(Town *t, int add, int max, DoCommandFlag flags)
02658 {
02659
02660 if (t == NULL || (flags & DC_NO_MODIFY_TOWN_RATING) ||
02661 !IsValidCompanyID(_current_company) ||
02662 (_cheats.magic_bulldozer.value && add < 0)) {
02663 return;
02664 }
02665
02666 int rating = GetRating(t);
02667 if (add < 0) {
02668 if (rating > max) {
02669 rating += add;
02670 if (rating < max) rating = max;
02671 }
02672 } else {
02673 if (rating < max) {
02674 rating += add;
02675 if (rating > max) rating = max;
02676 }
02677 }
02678 if (_town_rating_test) {
02679 _town_test_ratings[t] = rating;
02680 } else {
02681 SetBit(t->have_ratings, _current_company);
02682 t->ratings[_current_company] = rating;
02683 InvalidateWindow(WC_TOWN_AUTHORITY, t->index);
02684 }
02685 }
02686
02687
02688 static const int _default_rating_settings [3][3] = {
02689
02690 { 0, 128, 384},
02691 { 48, 192, 480},
02692 { 96, 384, 768},
02693 };
02694
02695 bool CheckforTownRating(DoCommandFlag flags, Town *t, byte type)
02696 {
02697
02698 if (t == NULL || !IsValidCompanyID(_current_company) || _cheats.magic_bulldozer.value)
02699 return true;
02700
02701
02702
02703
02704
02705 int modemod = _default_rating_settings[_settings_game.difficulty.town_council_tolerance][type];
02706
02707 if (GetRating(t) < 16 + modemod && !(flags & DC_NO_TEST_TOWN_RATING)) {
02708 SetDParam(0, t->index);
02709 _error_message = STR_2009_LOCAL_AUTHORITY_REFUSES;
02710 return false;
02711 }
02712
02713 return true;
02714 }
02715
02716 void TownsMonthlyLoop()
02717 {
02718 Town *t;
02719
02720 FOR_ALL_TOWNS(t) {
02721 if (t->road_build_months != 0) t->road_build_months--;
02722
02723 if (t->exclusive_counter != 0)
02724 if (--t->exclusive_counter == 0) t->exclusivity = INVALID_COMPANY;
02725
02726 UpdateTownGrowRate(t);
02727 UpdateTownAmounts(t);
02728 UpdateTownUnwanted(t);
02729 }
02730 }
02731
02732 void TownsYearlyLoop()
02733 {
02734
02735 for (TileIndex t = 0; t < MapSize(); t++) {
02736 if (!IsTileType(t, MP_HOUSE)) continue;
02737 IncrementHouseAge(t);
02738 }
02739 }
02740
02741 void InitializeTowns()
02742 {
02743
02744 _Town_pool.CleanPool();
02745 _Town_pool.AddBlockToPool();
02746
02747 memset(_subsidies, 0, sizeof(_subsidies));
02748 for (Subsidy *s = _subsidies; s != endof(_subsidies); s++) {
02749 s->cargo_type = CT_INVALID;
02750 }
02751
02752 _total_towns = 0;
02753 }
02754
02755 static CommandCost TerraformTile_Town(TileIndex tile, DoCommandFlag flags, uint z_new, Slope tileh_new)
02756 {
02757 if (AutoslopeEnabled()) {
02758 HouseID house = GetHouseType(tile);
02759 GetHouseNorthPart(house);
02760 const HouseSpec *hs = GetHouseSpecs(house);
02761
02762
02763 if (((hs->building_flags & TILE_NOT_SLOPED) == 0) && !IsSteepSlope(tileh_new) &&
02764 (GetTileMaxZ(tile) == z_new + GetSlopeMaxZ(tileh_new))) return CommandCost(EXPENSES_CONSTRUCTION, _price.terraform);
02765 }
02766
02767 return DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
02768 }
02769
02771 extern const TileTypeProcs _tile_type_town_procs = {
02772 DrawTile_Town,
02773 GetSlopeZ_Town,
02774 ClearTile_Town,
02775 GetAcceptedCargo_Town,
02776 GetTileDesc_Town,
02777 GetTileTrackStatus_Town,
02778 NULL,
02779 AnimateTile_Town,
02780 TileLoop_Town,
02781 ChangeTileOwner_Town,
02782 GetProducedCargo_Town,
02783 NULL,
02784 GetFoundation_Town,
02785 TerraformTile_Town,
02786 };
02787
02788 void ResetHouses()
02789 {
02790 memset(&_house_specs, 0, sizeof(_house_specs));
02791 memcpy(&_house_specs, &_original_house_specs, sizeof(_original_house_specs));
02792
02793
02794 _house_mngr.ResetOverride();
02795 }