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00012 #include "stdafx.h"
00013 #include "company_func.h"
00014 #include "command_func.h"
00015 #include "news_func.h"
00016 #include "aircraft.h"
00017 #include "newgrf.h"
00018 #include "newgrf_engine.h"
00019 #include "group.h"
00020 #include "strings_func.h"
00021 #include "core/random_func.hpp"
00022 #include "window_func.h"
00023 #include "date_func.h"
00024 #include "autoreplace_gui.h"
00025 #include "string_func.h"
00026 #include "ai/ai.hpp"
00027 #include "core/pool_func.hpp"
00028 #include "engine_gui.h"
00029 #include "engine_func.h"
00030 #include "engine_base.h"
00031 #include "company_base.h"
00032
00033 #include "table/strings.h"
00034 #include "table/engines.h"
00035
00036 EnginePool _engine_pool("Engine");
00037 INSTANTIATE_POOL_METHODS(Engine)
00038
00039 EngineOverrideManager _engine_mngr;
00040
00043 static Year _year_engine_aging_stops;
00044
00046 const uint8 _engine_counts[4] = {
00047 lengthof(_orig_rail_vehicle_info),
00048 lengthof(_orig_road_vehicle_info),
00049 lengthof(_orig_ship_vehicle_info),
00050 lengthof(_orig_aircraft_vehicle_info),
00051 };
00052
00054 const uint8 _engine_offsets[4] = {
00055 0,
00056 lengthof(_orig_rail_vehicle_info),
00057 lengthof(_orig_rail_vehicle_info) + lengthof(_orig_road_vehicle_info),
00058 lengthof(_orig_rail_vehicle_info) + lengthof(_orig_road_vehicle_info) + lengthof(_orig_ship_vehicle_info),
00059 };
00060
00061 assert_compile(lengthof(_orig_rail_vehicle_info) + lengthof(_orig_road_vehicle_info) + lengthof(_orig_ship_vehicle_info) + lengthof(_orig_aircraft_vehicle_info) == lengthof(_orig_engine_info));
00062
00063 const uint EngineOverrideManager::NUM_DEFAULT_ENGINES = _engine_counts[VEH_TRAIN] + _engine_counts[VEH_ROAD] + _engine_counts[VEH_SHIP] + _engine_counts[VEH_AIRCRAFT];
00064
00065 Engine::Engine() :
00066 name(NULL),
00067 overrides_count(0),
00068 overrides(NULL)
00069 {
00070 }
00071
00072 Engine::Engine(VehicleType type, EngineID base)
00073 {
00074 this->type = type;
00075 this->internal_id = base;
00076 this->list_position = base;
00077
00078
00079 if (base >= _engine_counts[type]) {
00080
00081 this->info.climates = 0x80;
00082
00083 this->info.base_life = 0xFF;
00084 return;
00085 }
00086
00087
00088 this->info = _orig_engine_info[_engine_offsets[type] + base];
00089
00090
00091 switch (type) {
00092 default: NOT_REACHED();
00093
00094 case VEH_TRAIN:
00095 this->u.rail = _orig_rail_vehicle_info[base];
00096 this->original_image_index = this->u.rail.image_index;
00097 this->info.string_id = STR_VEHICLE_NAME_TRAIN_ENGINE_RAIL_KIRBY_PAUL_TANK_STEAM + base;
00098
00099
00100 if (this->u.rail.railveh_type == RAILVEH_WAGON) this->info.base_life = 0xFF;
00101
00102 break;
00103
00104 case VEH_ROAD:
00105 this->u.road = _orig_road_vehicle_info[base];
00106 this->original_image_index = this->u.road.image_index;
00107 this->info.string_id = STR_VEHICLE_NAME_ROAD_VEHICLE_MPS_REGAL_BUS + base;
00108 break;
00109
00110 case VEH_SHIP:
00111 this->u.ship = _orig_ship_vehicle_info[base];
00112 this->original_image_index = this->u.ship.image_index;
00113 this->info.string_id = STR_VEHICLE_NAME_SHIP_MPS_OIL_TANKER + base;
00114 break;
00115
00116 case VEH_AIRCRAFT:
00117 this->u.air = _orig_aircraft_vehicle_info[base];
00118 this->original_image_index = this->u.air.image_index;
00119 this->info.string_id = STR_VEHICLE_NAME_AIRCRAFT_SAMPSON_U52 + base;
00120 break;
00121 }
00122 }
00123
00124 Engine::~Engine()
00125 {
00126 UnloadWagonOverrides(this);
00127 free(this->name);
00128 }
00129
00135 bool Engine::CanCarryCargo() const
00136 {
00137
00138
00139
00140
00141
00142 switch (this->type) {
00143 case VEH_TRAIN:
00144 if (this->u.rail.capacity == 0) return false;
00145 break;
00146
00147 case VEH_ROAD:
00148 if (this->u.road.capacity == 0) return false;
00149 break;
00150
00151 case VEH_SHIP:
00152 case VEH_AIRCRAFT:
00153 break;
00154
00155 default: NOT_REACHED();
00156 }
00157 return this->GetDefaultCargoType() != CT_INVALID;
00158 }
00159
00172 uint Engine::GetDisplayDefaultCapacity(uint16 *mail_capacity) const
00173 {
00174 if (mail_capacity != NULL) *mail_capacity = 0;
00175 if (!this->CanCarryCargo()) return 0;
00176 switch (type) {
00177 case VEH_TRAIN:
00178 return GetEngineProperty(this->index, PROP_TRAIN_CARGO_CAPACITY, this->u.rail.capacity) + (this->u.rail.railveh_type == RAILVEH_MULTIHEAD ? this->u.rail.capacity : 0);
00179
00180 case VEH_ROAD:
00181 return GetEngineProperty(this->index, PROP_ROADVEH_CARGO_CAPACITY, this->u.road.capacity);
00182
00183 case VEH_SHIP:
00184 return GetEngineProperty(this->index, PROP_SHIP_CARGO_CAPACITY, this->u.ship.capacity);
00185
00186 case VEH_AIRCRAFT: {
00187 uint capacity = this->u.air.passenger_capacity;
00188 CargoID cargo = this->GetDefaultCargoType();
00189 if (IsCargoInClass(cargo, CC_PASSENGERS)) {
00190 if (mail_capacity != NULL) *mail_capacity = this->u.air.mail_capacity;
00191 } else {
00192 capacity += this->u.air.mail_capacity;
00193 }
00194 switch (cargo) {
00195 case CT_PASSENGERS:
00196 case CT_MAIL: return capacity;
00197 case CT_GOODS: return capacity / 2;
00198 default: return capacity / 4;
00199 }
00200 }
00201
00202 default: NOT_REACHED();
00203 }
00204 }
00205
00206 Money Engine::GetRunningCost() const
00207 {
00208 Price base_price;
00209 uint cost_factor;
00210 switch (this->type) {
00211 case VEH_ROAD:
00212 base_price = this->u.road.running_cost_class;
00213 if (base_price == INVALID_PRICE) return 0;
00214 cost_factor = GetEngineProperty(this->index, PROP_ROADVEH_RUNNING_COST_FACTOR, this->u.road.running_cost);
00215 break;
00216
00217 case VEH_TRAIN:
00218 base_price = this->u.rail.running_cost_class;
00219 if (base_price == INVALID_PRICE) return 0;
00220 cost_factor = GetEngineProperty(this->index, PROP_TRAIN_RUNNING_COST_FACTOR, this->u.rail.running_cost);
00221 break;
00222
00223 case VEH_SHIP:
00224 base_price = PR_RUNNING_SHIP;
00225 cost_factor = GetEngineProperty(this->index, PROP_SHIP_RUNNING_COST_FACTOR, this->u.ship.running_cost);
00226 break;
00227
00228 case VEH_AIRCRAFT:
00229 base_price = PR_RUNNING_AIRCRAFT;
00230 cost_factor = GetEngineProperty(this->index, PROP_AIRCRAFT_RUNNING_COST_FACTOR, this->u.air.running_cost);
00231 break;
00232
00233 default: NOT_REACHED();
00234 }
00235
00236 return GetPrice(base_price, cost_factor, this->grffile, -8);
00237 }
00238
00239 Money Engine::GetCost() const
00240 {
00241 Price base_price;
00242 uint cost_factor;
00243 switch (this->type) {
00244 case VEH_ROAD:
00245 base_price = PR_BUILD_VEHICLE_ROAD;
00246 cost_factor = GetEngineProperty(this->index, PROP_ROADVEH_COST_FACTOR, this->u.road.cost_factor);
00247 break;
00248
00249 case VEH_TRAIN:
00250 if (this->u.rail.railveh_type == RAILVEH_WAGON) {
00251 base_price = PR_BUILD_VEHICLE_WAGON;
00252 cost_factor = GetEngineProperty(this->index, PROP_TRAIN_COST_FACTOR, this->u.rail.cost_factor);
00253 } else {
00254 base_price = PR_BUILD_VEHICLE_TRAIN;
00255 cost_factor = GetEngineProperty(this->index, PROP_TRAIN_COST_FACTOR, this->u.rail.cost_factor);
00256 }
00257 break;
00258
00259 case VEH_SHIP:
00260 base_price = PR_BUILD_VEHICLE_SHIP;
00261 cost_factor = GetEngineProperty(this->index, PROP_SHIP_COST_FACTOR, this->u.ship.cost_factor);
00262 break;
00263
00264 case VEH_AIRCRAFT:
00265 base_price = PR_BUILD_VEHICLE_AIRCRAFT;
00266 cost_factor = GetEngineProperty(this->index, PROP_AIRCRAFT_COST_FACTOR, this->u.air.cost_factor);
00267 break;
00268
00269 default: NOT_REACHED();
00270 }
00271
00272 return GetPrice(base_price, cost_factor, this->grffile, -8);
00273 }
00274
00279 uint Engine::GetDisplayMaxSpeed() const
00280 {
00281 switch (this->type) {
00282 case VEH_TRAIN:
00283 return GetEngineProperty(this->index, PROP_TRAIN_SPEED, this->u.rail.max_speed);
00284
00285 case VEH_ROAD:
00286 return this->u.road.max_speed / 2;
00287
00288 case VEH_SHIP:
00289 return GetEngineProperty(this->index, PROP_SHIP_SPEED, this->u.ship.max_speed) / 2;
00290
00291 case VEH_AIRCRAFT:
00292 return this->u.air.max_speed;
00293
00294 default: NOT_REACHED();
00295 }
00296 }
00297
00298 uint Engine::GetPower() const
00299 {
00300
00301 switch (this->type) {
00302 case VEH_TRAIN:
00303 return GetEngineProperty(this->index, PROP_TRAIN_POWER, this->u.rail.power);
00304
00305 default: NOT_REACHED();
00306 }
00307 }
00308
00314 uint Engine::GetDisplayWeight() const
00315 {
00316
00317 switch (this->type) {
00318 case VEH_TRAIN:
00319 return GetEngineProperty(this->index, PROP_TRAIN_WEIGHT, this->u.rail.weight) << (this->u.rail.railveh_type == RAILVEH_MULTIHEAD ? 1 : 0);
00320
00321 default: NOT_REACHED();
00322 }
00323 }
00324
00330 uint Engine::GetDisplayMaxTractiveEffort() const
00331 {
00332
00333 switch (this->type) {
00334 case VEH_TRAIN:
00335 return (10 * this->GetDisplayWeight() * GetEngineProperty(this->index, PROP_TRAIN_TRACTIVE_EFFORT, this->u.rail.tractive_effort)) / 256;
00336
00337 default: NOT_REACHED();
00338 }
00339 }
00340
00345 Date Engine::GetLifeLengthInDays() const
00346 {
00347
00348 return (this->info.lifelength + _settings_game.vehicle.extend_vehicle_life) * DAYS_IN_LEAP_YEAR;
00349 }
00350
00354 void EngineOverrideManager::ResetToDefaultMapping()
00355 {
00356 this->Clear();
00357 for (VehicleType type = VEH_TRAIN; type <= VEH_AIRCRAFT; type++) {
00358 for (uint internal_id = 0; internal_id < _engine_counts[type]; internal_id++) {
00359 EngineIDMapping *eid = this->Append();
00360 eid->type = type;
00361 eid->grfid = INVALID_GRFID;
00362 eid->internal_id = internal_id;
00363 eid->substitute_id = internal_id;
00364 }
00365 }
00366 }
00367
00377 EngineID EngineOverrideManager::GetID(VehicleType type, uint16 grf_local_id, uint32 grfid)
00378 {
00379 const EngineIDMapping *end = this->End();
00380 EngineID index = 0;
00381 for (const EngineIDMapping *eid = this->Begin(); eid != end; eid++, index++) {
00382 if (eid->type == type && eid->grfid == grfid && eid->internal_id == grf_local_id) {
00383 return index;
00384 }
00385 }
00386 return INVALID_ENGINE;
00387 }
00388
00391 void SetCachedEngineCounts()
00392 {
00393 size_t engines = Engine::GetPoolSize();
00394
00395
00396 Company *c;
00397 FOR_ALL_COMPANIES(c) {
00398 free(c->num_engines);
00399 c->num_engines = CallocT<EngineID>(engines);
00400 }
00401
00402
00403 Group *g;
00404 FOR_ALL_GROUPS(g) {
00405 free(g->num_engines);
00406 g->num_engines = CallocT<EngineID>(engines);
00407 }
00408
00409 const Vehicle *v;
00410 FOR_ALL_VEHICLES(v) {
00411 if (!v->IsEngineCountable()) continue;
00412
00413 assert(v->engine_type < engines);
00414
00415 Company::Get(v->owner)->num_engines[v->engine_type]++;
00416
00417 if (v->group_id == DEFAULT_GROUP) continue;
00418
00419 g = Group::Get(v->group_id);
00420 assert(v->type == g->vehicle_type);
00421 assert(v->owner == g->owner);
00422
00423 g->num_engines[v->engine_type]++;
00424 }
00425 }
00426
00427 void SetupEngines()
00428 {
00429 _engine_pool.CleanPool();
00430
00431 assert(_engine_mngr.Length() >= _engine_mngr.NUM_DEFAULT_ENGINES);
00432 const EngineIDMapping *end = _engine_mngr.End();
00433 uint index = 0;
00434 for (const EngineIDMapping *eid = _engine_mngr.Begin(); eid != end; eid++, index++) {
00435 const Engine *e = new Engine(eid->type, eid->internal_id);
00436 assert(e->index == index);
00437 }
00438 }
00439
00440
00441 void ShowEnginePreviewWindow(EngineID engine);
00442
00443
00444 static bool IsWagon(EngineID index)
00445 {
00446 const Engine *e = Engine::Get(index);
00447 return e->type == VEH_TRAIN && e->u.rail.railveh_type == RAILVEH_WAGON;
00448 }
00449
00450 static void CalcEngineReliability(Engine *e)
00451 {
00452 uint age = e->age;
00453
00454
00455 if (e->company_avail != 0 && !_settings_game.vehicle.never_expire_vehicles && e->info.base_life != 0xFF) {
00456 int retire_early = e->info.retire_early;
00457 uint retire_early_max_age = max(0, e->duration_phase_1 + e->duration_phase_2 - retire_early * 12);
00458 if (retire_early != 0 && age >= retire_early_max_age) {
00459
00460 e->company_avail = 0;
00461 AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
00462 }
00463 }
00464
00465 if (age < e->duration_phase_1) {
00466 uint start = e->reliability_start;
00467 e->reliability = age * (e->reliability_max - start) / e->duration_phase_1 + start;
00468 } else if ((age -= e->duration_phase_1) < e->duration_phase_2 || _settings_game.vehicle.never_expire_vehicles || e->info.base_life == 0xFF) {
00469
00470
00471 e->reliability = e->reliability_max;
00472 } else if ((age -= e->duration_phase_2) < e->duration_phase_3) {
00473 uint max = e->reliability_max;
00474 e->reliability = (int)age * (int)(e->reliability_final - max) / e->duration_phase_3 + max;
00475 } else {
00476
00477
00478 e->company_avail = 0;
00479 e->reliability = e->reliability_final;
00480
00481 AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
00482 }
00483 SetWindowClassesDirty(WC_BUILD_VEHICLE);
00484 SetWindowClassesDirty(WC_REPLACE_VEHICLE);
00485 }
00486
00487 void SetYearEngineAgingStops()
00488 {
00489
00490 _year_engine_aging_stops = 2050;
00491
00492 const Engine *e;
00493 FOR_ALL_ENGINES(e) {
00494 const EngineInfo *ei = &e->info;
00495
00496
00497 if (!HasBit(ei->climates, _settings_game.game_creation.landscape)) continue;
00498 if (e->type == VEH_TRAIN && e->u.rail.railveh_type == RAILVEH_WAGON) continue;
00499
00500
00501 YearMonthDay ymd;
00502 ConvertDateToYMD(ei->base_intro + (ei->lifelength * DAYS_IN_LEAP_YEAR) / 2, &ymd);
00503
00504 _year_engine_aging_stops = max(_year_engine_aging_stops, ymd.year);
00505 }
00506 }
00507
00508 void StartupOneEngine(Engine *e, Date aging_date)
00509 {
00510 const EngineInfo *ei = &e->info;
00511 uint32 r;
00512
00513 e->age = 0;
00514 e->flags = 0;
00515 e->company_avail = 0;
00516
00517
00518
00519
00520 r = Random();
00521 e->intro_date = ei->base_intro <= ConvertYMDToDate(_settings_game.game_creation.starting_year + 2, 0, 1) ? ei->base_intro : (Date)GB(r, 0, 9) + ei->base_intro;
00522 if (e->intro_date <= _date) {
00523 e->age = (aging_date - e->intro_date) >> 5;
00524 e->company_avail = (CompanyMask)-1;
00525 e->flags |= ENGINE_AVAILABLE;
00526 }
00527
00528 e->reliability_start = GB(r, 16, 14) + 0x7AE0;
00529 r = Random();
00530 e->reliability_max = GB(r, 0, 14) + 0xBFFF;
00531 e->reliability_final = GB(r, 16, 14) + 0x3FFF;
00532
00533 r = Random();
00534 e->duration_phase_1 = GB(r, 0, 5) + 7;
00535 e->duration_phase_2 = GB(r, 5, 4) + ei->base_life * 12 - 96;
00536 e->duration_phase_3 = GB(r, 9, 7) + 120;
00537
00538 e->reliability_spd_dec = ei->decay_speed << 2;
00539
00540 CalcEngineReliability(e);
00541
00542
00543 if (!HasBit(ei->climates, _settings_game.game_creation.landscape)) {
00544 e->flags |= ENGINE_AVAILABLE;
00545 e->company_avail = 0;
00546 }
00547 }
00548
00549 void StartupEngines()
00550 {
00551 Engine *e;
00552
00553 const Date aging_date = min(_date, ConvertYMDToDate(_year_engine_aging_stops, 0, 1));
00554
00555 FOR_ALL_ENGINES(e) {
00556 StartupOneEngine(e, aging_date);
00557 }
00558
00559
00560 Company *c;
00561 FOR_ALL_COMPANIES(c) {
00562 c->avail_railtypes = GetCompanyRailtypes(c->index);
00563 c->avail_roadtypes = GetCompanyRoadtypes(c->index);
00564 }
00565 }
00566
00567 static void AcceptEnginePreview(EngineID eid, CompanyID company)
00568 {
00569 Engine *e = Engine::Get(eid);
00570 Company *c = Company::Get(company);
00571
00572 SetBit(e->company_avail, company);
00573 if (e->type == VEH_TRAIN) {
00574 assert(e->u.rail.railtype < RAILTYPE_END);
00575 SetBit(c->avail_railtypes, e->u.rail.railtype);
00576 } else if (e->type == VEH_ROAD) {
00577 SetBit(c->avail_roadtypes, HasBit(e->info.misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD);
00578 }
00579
00580 e->preview_company_rank = 0xFF;
00581 if (company == _local_company) {
00582 AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
00583 }
00584 }
00585
00586 static CompanyID GetBestCompany(uint8 pp)
00587 {
00588 const Company *c;
00589 int32 best_hist;
00590 CompanyID best_company;
00591 CompanyMask mask = 0;
00592
00593 do {
00594 best_hist = -1;
00595 best_company = INVALID_COMPANY;
00596 FOR_ALL_COMPANIES(c) {
00597 if (c->block_preview == 0 && !HasBit(mask, c->index) &&
00598 c->old_economy[0].performance_history > best_hist) {
00599 best_hist = c->old_economy[0].performance_history;
00600 best_company = c->index;
00601 }
00602 }
00603
00604 if (best_company == INVALID_COMPANY) return INVALID_COMPANY;
00605
00606 SetBit(mask, best_company);
00607 } while (--pp != 0);
00608
00609 return best_company;
00610 }
00611
00612 void EnginesDailyLoop()
00613 {
00614 if (_cur_year >= _year_engine_aging_stops) return;
00615
00616 Engine *e;
00617 FOR_ALL_ENGINES(e) {
00618 EngineID i = e->index;
00619 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) {
00620 if (e->flags & ENGINE_OFFER_WINDOW_OPEN) {
00621 if (e->preview_company_rank != 0xFF && !--e->preview_wait) {
00622 e->flags &= ~ENGINE_OFFER_WINDOW_OPEN;
00623 DeleteWindowById(WC_ENGINE_PREVIEW, i);
00624 e->preview_company_rank++;
00625 }
00626 } else if (e->preview_company_rank != 0xFF) {
00627 CompanyID best_company = GetBestCompany(e->preview_company_rank);
00628
00629 if (best_company == INVALID_COMPANY) {
00630 e->preview_company_rank = 0xFF;
00631 continue;
00632 }
00633
00634 e->flags |= ENGINE_OFFER_WINDOW_OPEN;
00635 e->preview_wait = 20;
00636 AI::NewEvent(best_company, new AIEventEnginePreview(i));
00637 if (IsInteractiveCompany(best_company)) ShowEnginePreviewWindow(i);
00638 }
00639 }
00640 }
00641 }
00642
00652 CommandCost CmdWantEnginePreview(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00653 {
00654 Engine *e = Engine::GetIfValid(p1);
00655 if (e == NULL || GetBestCompany(e->preview_company_rank) != _current_company) return CMD_ERROR;
00656
00657 if (flags & DC_EXEC) AcceptEnginePreview(p1, _current_company);
00658
00659 return CommandCost();
00660 }
00661
00662 static void NewVehicleAvailable(Engine *e)
00663 {
00664 Vehicle *v;
00665 Company *c;
00666 EngineID index = e->index;
00667
00668
00669
00670 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) {
00671 FOR_ALL_COMPANIES(c) {
00672 uint block_preview = c->block_preview;
00673
00674 if (!HasBit(e->company_avail, c->index)) continue;
00675
00676
00677 c->block_preview = 20;
00678
00679 FOR_ALL_VEHICLES(v) {
00680 if (v->type == VEH_TRAIN || v->type == VEH_ROAD || v->type == VEH_SHIP ||
00681 (v->type == VEH_AIRCRAFT && Aircraft::From(v)->IsNormalAircraft())) {
00682 if (v->owner == c->index && v->engine_type == index) {
00683
00684 c->block_preview = block_preview;
00685 break;
00686 }
00687 }
00688 }
00689 }
00690 }
00691
00692 e->flags = (e->flags & ~ENGINE_EXCLUSIVE_PREVIEW) | ENGINE_AVAILABLE;
00693 AddRemoveEngineFromAutoreplaceAndBuildWindows(e->type);
00694
00695
00696 e->company_avail = (CompanyMask)-1;
00697
00698
00699 if (IsWagon(index)) return;
00700
00701 if (e->type == VEH_TRAIN) {
00702
00703 RailType railtype = e->u.rail.railtype;
00704 assert(railtype < RAILTYPE_END);
00705 FOR_ALL_COMPANIES(c) SetBit(c->avail_railtypes, railtype);
00706 } else if (e->type == VEH_ROAD) {
00707
00708 FOR_ALL_COMPANIES(c) SetBit(c->avail_roadtypes, HasBit(e->info.misc_flags, EF_ROAD_TRAM) ? ROADTYPE_TRAM : ROADTYPE_ROAD);
00709 }
00710
00711 AI::BroadcastNewEvent(new AIEventEngineAvailable(index));
00712
00713 SetDParam(0, GetEngineCategoryName(index));
00714 SetDParam(1, index);
00715 AddNewsItem(STR_NEWS_NEW_VEHICLE_NOW_AVAILABLE_WITH_TYPE, NS_NEW_VEHICLES, NR_ENGINE, index);
00716 }
00717
00718 void EnginesMonthlyLoop()
00719 {
00720 if (_cur_year < _year_engine_aging_stops) {
00721 Engine *e;
00722 FOR_ALL_ENGINES(e) {
00723
00724 if ((e->flags & ENGINE_AVAILABLE) && e->age != 0xFFFF) {
00725 e->age++;
00726 CalcEngineReliability(e);
00727 }
00728
00729 if (!(e->flags & ENGINE_AVAILABLE) && _date >= (e->intro_date + DAYS_IN_YEAR)) {
00730
00731 NewVehicleAvailable(e);
00732 } else if (!(e->flags & (ENGINE_AVAILABLE | ENGINE_EXCLUSIVE_PREVIEW)) && _date >= e->intro_date) {
00733
00734 e->flags |= ENGINE_EXCLUSIVE_PREVIEW;
00735
00736
00737 if (!IsWagon(e->index))
00738 e->preview_company_rank = 1;
00739 }
00740 }
00741 }
00742 }
00743
00744 static bool IsUniqueEngineName(const char *name)
00745 {
00746 const Engine *e;
00747
00748 FOR_ALL_ENGINES(e) {
00749 if (e->name != NULL && strcmp(e->name, name) == 0) return false;
00750 }
00751
00752 return true;
00753 }
00754
00763 CommandCost CmdRenameEngine(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00764 {
00765 Engine *e = Engine::GetIfValid(p1);
00766 if (e == NULL) return CMD_ERROR;
00767
00768 bool reset = StrEmpty(text);
00769
00770 if (!reset) {
00771 if (strlen(text) >= MAX_LENGTH_ENGINE_NAME_BYTES) return CMD_ERROR;
00772 if (!IsUniqueEngineName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
00773 }
00774
00775 if (flags & DC_EXEC) {
00776 free(e->name);
00777
00778 if (reset) {
00779 e->name = NULL;
00780 } else {
00781 e->name = strdup(text);
00782 }
00783
00784 MarkWholeScreenDirty();
00785 }
00786
00787 return CommandCost();
00788 }
00789
00790
00798 bool IsEngineBuildable(EngineID engine, VehicleType type, CompanyID company)
00799 {
00800 const Engine *e = Engine::GetIfValid(engine);
00801
00802
00803 if (e == NULL) return false;
00804
00805
00806 if (e->type != type) return false;
00807
00808
00809 if (!HasBit(e->company_avail, company)) return false;
00810
00811 if (type == VEH_TRAIN) {
00812
00813 const Company *c = Company::Get(company);
00814 if (((GetRailTypeInfo(e->u.rail.railtype))->compatible_railtypes & c->avail_railtypes) == 0) return false;
00815 }
00816
00817 return true;
00818 }
00819
00826 bool IsEngineRefittable(EngineID engine)
00827 {
00828 const Engine *e = Engine::GetIfValid(engine);
00829
00830
00831 if (e == NULL) return false;
00832
00833 if (!e->CanCarryCargo()) return false;
00834
00835 const EngineInfo *ei = &e->info;
00836 if (ei->refit_mask == 0) return false;
00837
00838
00839
00840 if (HasBit(ei->callback_mask, CBM_VEHICLE_CARGO_SUFFIX)) return true;
00841
00842
00843 CargoID default_cargo = e->GetDefaultCargoType();
00844 return default_cargo != CT_INVALID && ei->refit_mask != 1U << default_cargo;
00845 }