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00012 #include "stdafx.h"
00013 #include "company_func.h"
00014 #include "command_func.h"
00015 #include "industry.h"
00016 #include "town.h"
00017 #include "news_func.h"
00018 #include "network/network.h"
00019 #include "network/network_func.h"
00020 #include "vehicle_gui.h"
00021 #include "ai/ai.hpp"
00022 #include "aircraft.h"
00023 #include "newgrf_engine.h"
00024 #include "engine_base.h"
00025 #include "ground_vehicle.hpp"
00026 #include "newgrf_cargo.h"
00027 #include "newgrf_sound.h"
00028 #include "newgrf_industrytiles.h"
00029 #include "newgrf_station.h"
00030 #include "newgrf_airporttiles.h"
00031 #include "object.h"
00032 #include "group.h"
00033 #include "strings_func.h"
00034 #include "functions.h"
00035 #include "window_func.h"
00036 #include "date_func.h"
00037 #include "vehicle_func.h"
00038 #include "sound_func.h"
00039 #include "autoreplace_func.h"
00040 #include "company_gui.h"
00041 #include "signs_base.h"
00042 #include "subsidy_base.h"
00043 #include "subsidy_func.h"
00044 #include "station_base.h"
00045 #include "waypoint_base.h"
00046 #include "economy_base.h"
00047 #include "core/pool_func.hpp"
00048 #include "newgrf.h"
00049 #include "core/backup_type.hpp"
00050
00051 #include "table/strings.h"
00052 #include "table/pricebase.h"
00053
00054
00055
00056 CargoPaymentPool _cargo_payment_pool("CargoPayment");
00057 INSTANTIATE_POOL_METHODS(CargoPayment)
00058
00059
00070 static inline int32 BigMulS(const int32 a, const int32 b, const uint8 shift)
00071 {
00072 return (int32)((int64)a * (int64)b >> shift);
00073 }
00074
00075 typedef SmallVector<Industry *, 16> SmallIndustryList;
00076
00080 const ScoreInfo _score_info[] = {
00081 { 120, 100},
00082 { 80, 100},
00083 { 10000, 100},
00084 { 50000, 50},
00085 { 100000, 100},
00086 { 40000, 400},
00087 { 8, 50},
00088 {10000000, 50},
00089 { 250000, 50},
00090 { 0, 0}
00091 };
00092
00093 int _score_part[MAX_COMPANIES][SCORE_END];
00094 Economy _economy;
00095 Prices _price;
00096 Money _additional_cash_required;
00097 static PriceMultipliers _price_base_multiplier;
00098
00108 Money CalculateCompanyValue(const Company *c, bool including_loan)
00109 {
00110 Owner owner = c->index;
00111
00112 Station *st;
00113 uint num = 0;
00114
00115 FOR_ALL_STATIONS(st) {
00116 if (st->owner == owner) num += CountBits((byte)st->facilities);
00117 }
00118
00119 Money value = num * _price[PR_STATION_VALUE] * 25;
00120
00121 Vehicle *v;
00122 FOR_ALL_VEHICLES(v) {
00123 if (v->owner != owner) continue;
00124
00125 if (v->type == VEH_TRAIN ||
00126 v->type == VEH_ROAD ||
00127 (v->type == VEH_AIRCRAFT && Aircraft::From(v)->IsNormalAircraft()) ||
00128 v->type == VEH_SHIP) {
00129 value += v->value * 3 >> 1;
00130 }
00131 }
00132
00133
00134 if (including_loan) value -= c->current_loan;
00135 value += c->money;
00136
00137 return max(value, (Money)1);
00138 }
00139
00148 int UpdateCompanyRatingAndValue(Company *c, bool update)
00149 {
00150 Owner owner = c->index;
00151 int score = 0;
00152
00153 memset(_score_part[owner], 0, sizeof(_score_part[owner]));
00154
00155
00156 {
00157 Vehicle *v;
00158 Money min_profit = 0;
00159 bool min_profit_first = true;
00160 uint num = 0;
00161
00162 FOR_ALL_VEHICLES(v) {
00163 if (v->owner != owner) continue;
00164 if (IsCompanyBuildableVehicleType(v->type) && v->IsPrimaryVehicle()) {
00165 if (v->profit_last_year > 0) num++;
00166 if (v->age > 730) {
00167
00168 if (min_profit_first || min_profit > v->profit_last_year) {
00169 min_profit = v->profit_last_year;
00170 min_profit_first = false;
00171 }
00172 }
00173 }
00174 }
00175
00176 min_profit >>= 8;
00177
00178 _score_part[owner][SCORE_VEHICLES] = num;
00179
00180 if (min_profit > 0) {
00181 _score_part[owner][SCORE_MIN_PROFIT] = ClampToI32(min_profit);
00182 }
00183 }
00184
00185
00186 {
00187 uint num = 0;
00188 const Station *st;
00189
00190 FOR_ALL_STATIONS(st) {
00191
00192 if (st->owner == owner && (st->time_since_load <= 20 || st->time_since_unload <= 20)) num += CountBits((byte)st->facilities);
00193 }
00194 _score_part[owner][SCORE_STATIONS] = num;
00195 }
00196
00197
00198 {
00199 int numec = min(c->num_valid_stat_ent, 12);
00200 if (numec != 0) {
00201 const CompanyEconomyEntry *cee = c->old_economy;
00202 Money min_income = cee->income + cee->expenses;
00203 Money max_income = cee->income + cee->expenses;
00204
00205 do {
00206 min_income = min(min_income, cee->income + cee->expenses);
00207 max_income = max(max_income, cee->income + cee->expenses);
00208 } while (++cee, --numec);
00209
00210 if (min_income > 0) {
00211 _score_part[owner][SCORE_MIN_INCOME] = ClampToI32(min_income);
00212 }
00213
00214 _score_part[owner][SCORE_MAX_INCOME] = ClampToI32(max_income);
00215 }
00216 }
00217
00218
00219 {
00220 const CompanyEconomyEntry *cee;
00221 int numec;
00222 uint32 total_delivered;
00223
00224 numec = min(c->num_valid_stat_ent, 4);
00225 if (numec != 0) {
00226 cee = c->old_economy;
00227 total_delivered = 0;
00228 do {
00229 total_delivered += cee->delivered_cargo;
00230 } while (++cee, --numec);
00231
00232 _score_part[owner][SCORE_DELIVERED] = total_delivered;
00233 }
00234 }
00235
00236
00237 {
00238 uint num = CountBits(c->cargo_types);
00239 _score_part[owner][SCORE_CARGO] = num;
00240 if (update) c->cargo_types = 0;
00241 }
00242
00243
00244 {
00245 if (c->money > 0) {
00246 _score_part[owner][SCORE_MONEY] = ClampToI32(c->money);
00247 }
00248 }
00249
00250
00251 {
00252 _score_part[owner][SCORE_LOAN] = ClampToI32(_score_info[SCORE_LOAN].needed - c->current_loan);
00253 }
00254
00255
00256 {
00257 int total_score = 0;
00258 int s;
00259 score = 0;
00260 for (ScoreID i = SCORE_BEGIN; i < SCORE_END; i++) {
00261
00262 if (i == SCORE_TOTAL) continue;
00263
00264 s = Clamp(_score_part[owner][i], 0, _score_info[i].needed) * _score_info[i].score / _score_info[i].needed;
00265 score += s;
00266 total_score += _score_info[i].score;
00267 }
00268
00269 _score_part[owner][SCORE_TOTAL] = score;
00270
00271
00272 if (total_score != SCORE_MAX) score = score * SCORE_MAX / total_score;
00273 }
00274
00275 if (update) {
00276 c->old_economy[0].performance_history = score;
00277 UpdateCompanyHQ(c->location_of_HQ, score);
00278 c->old_economy[0].company_value = CalculateCompanyValue(c);
00279 }
00280
00281 SetWindowDirty(WC_PERFORMANCE_DETAIL, 0);
00282 return score;
00283 }
00284
00285
00286 void ChangeOwnershipOfCompanyItems(Owner old_owner, Owner new_owner)
00287 {
00288 #ifdef ENABLE_NETWORK
00289
00290 if (_networking) NetworkClientsToSpectators(old_owner);
00291 #endif
00292
00293 Town *t;
00294 Backup<CompanyByte> cur_company(_current_company, old_owner, FILE_LINE);
00295
00296 assert(old_owner != new_owner);
00297
00298 {
00299 Company *c;
00300 uint i;
00301
00302
00303 FOR_ALL_COMPANIES(c) {
00304 for (i = 0; i < 4; i++) {
00305 if (c->share_owners[i] == old_owner) {
00306
00307 CommandCost res = DoCommand(0, c->index, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);
00308
00309
00310 SubtractMoneyFromCompany(res);
00311 }
00312 }
00313 }
00314
00315
00316 Backup<CompanyByte> cur_company2(_current_company, FILE_LINE);
00317 c = Company::Get(old_owner);
00318 for (i = 0; i < 4; i++) {
00319 cur_company2.Change(c->share_owners[i]);
00320 if (_current_company != INVALID_OWNER) {
00321
00322 CommandCost res = DoCommand(0, old_owner, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);
00323
00324
00325 SubtractMoneyFromCompany(res);
00326 }
00327 }
00328 cur_company2.Restore();
00329 }
00330
00331
00332
00333
00334 if (new_owner == INVALID_OWNER) {
00335 Company::Get(old_owner)->money = UINT64_MAX >> 2;
00336 }
00337
00338 Subsidy *s;
00339 FOR_ALL_SUBSIDIES(s) {
00340 if (s->awarded == old_owner) {
00341 if (new_owner == INVALID_OWNER) {
00342 delete s;
00343 } else {
00344 s->awarded = new_owner;
00345 }
00346 }
00347 }
00348 if (new_owner == INVALID_OWNER) RebuildSubsidisedSourceAndDestinationCache();
00349
00350
00351 FOR_ALL_TOWNS(t) {
00352
00353 if (new_owner != INVALID_OWNER) {
00354 if (HasBit(t->have_ratings, old_owner)) {
00355 if (HasBit(t->have_ratings, new_owner)) {
00356
00357 t->ratings[new_owner] = max(t->ratings[new_owner], t->ratings[old_owner]);
00358 } else {
00359 SetBit(t->have_ratings, new_owner);
00360 t->ratings[new_owner] = t->ratings[old_owner];
00361 }
00362 }
00363 }
00364
00365
00366 t->ratings[old_owner] = RATING_INITIAL;
00367 ClrBit(t->have_ratings, old_owner);
00368 }
00369
00370 {
00371 FreeUnitIDGenerator unitidgen[] = {
00372 FreeUnitIDGenerator(VEH_TRAIN, new_owner), FreeUnitIDGenerator(VEH_ROAD, new_owner),
00373 FreeUnitIDGenerator(VEH_SHIP, new_owner), FreeUnitIDGenerator(VEH_AIRCRAFT, new_owner)
00374 };
00375
00376 Vehicle *v;
00377 FOR_ALL_VEHICLES(v) {
00378 if (v->owner == old_owner && IsCompanyBuildableVehicleType(v->type)) {
00379 if (new_owner == INVALID_OWNER) {
00380 if (v->Previous() == NULL) delete v;
00381 } else {
00382 v->owner = new_owner;
00383 v->colourmap = PAL_NONE;
00384 if (v->IsEngineCountable()) Company::Get(new_owner)->num_engines[v->engine_type]++;
00385 if (v->IsPrimaryVehicle()) v->unitnumber = unitidgen[v->type].NextID();
00386
00387
00388 if (v->cargo_payment != NULL) v->cargo_payment->owner = NULL;
00389 }
00390 }
00391 }
00392 }
00393
00394
00395 {
00396 TileIndex tile = 0;
00397 do {
00398 ChangeTileOwner(tile, old_owner, new_owner);
00399 } while (++tile != MapSize());
00400
00401 if (new_owner != INVALID_OWNER) {
00402
00403
00404
00405
00406 tile = 0;
00407
00408 do {
00409 if (IsTileType(tile, MP_RAILWAY) && IsTileOwner(tile, new_owner) && HasSignals(tile)) {
00410 TrackBits tracks = GetTrackBits(tile);
00411 do {
00412 Track track = RemoveFirstTrack(&tracks);
00413 if (HasSignalOnTrack(tile, track)) AddTrackToSignalBuffer(tile, track, new_owner);
00414 } while (tracks != TRACK_BIT_NONE);
00415 } else if (IsLevelCrossingTile(tile) && IsTileOwner(tile, new_owner)) {
00416 UpdateLevelCrossing(tile);
00417 }
00418 } while (++tile != MapSize());
00419 }
00420
00421
00422 UpdateSignalsInBuffer();
00423 }
00424
00425
00426 Station *st;
00427 FOR_ALL_STATIONS(st) {
00428 if (st->owner == old_owner) {
00429
00430
00431 st->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00432 }
00433 }
00434
00435
00436 Waypoint *wp;
00437 FOR_ALL_WAYPOINTS(wp) {
00438 if (wp->owner == old_owner) {
00439 wp->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00440 }
00441 }
00442
00443
00444
00445 RemoveAllEngineReplacementForCompany(Company::Get(old_owner));
00446
00447 if (new_owner == INVALID_OWNER) {
00448 RemoveAllGroupsForCompany(old_owner);
00449 } else {
00450 Group *g;
00451 FOR_ALL_GROUPS(g) {
00452 if (g->owner == old_owner) g->owner = new_owner;
00453 }
00454 }
00455
00456 Sign *si;
00457 FOR_ALL_SIGNS(si) {
00458 if (si->owner == old_owner) si->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00459 }
00460
00461
00462 if (new_owner != INVALID_OWNER) ChangeWindowOwner(old_owner, new_owner);
00463
00464 cur_company.Restore();
00465
00466 MarkWholeScreenDirty();
00467 }
00468
00473 static void CompanyCheckBankrupt(Company *c)
00474 {
00475
00476 if (c->money >= 0) {
00477 c->quarters_of_bankruptcy = 0;
00478 c->bankrupt_asked = 0;
00479 return;
00480 }
00481
00482 c->quarters_of_bankruptcy++;
00483
00484 switch (c->quarters_of_bankruptcy) {
00485 case 0:
00486 case 1:
00487 break;
00488
00489 case 2: {
00490 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00491 cni->FillData(c);
00492 SetDParam(0, STR_NEWS_COMPANY_IN_TROUBLE_TITLE);
00493 SetDParam(1, STR_NEWS_COMPANY_IN_TROUBLE_DESCRIPTION);
00494 SetDParamStr(2, cni->company_name);
00495 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_TROUBLE, cni);
00496 AI::BroadcastNewEvent(new AIEventCompanyInTrouble(c->index));
00497 break;
00498 }
00499
00500 case 3: {
00501
00502
00503 Money val = CalculateCompanyValue(c, false);
00504 if (val > 0) {
00505 c->bankrupt_value = val;
00506 c->bankrupt_asked = 1 << c->index;
00507 c->bankrupt_timeout = 0;
00508 break;
00509 }
00510
00511 }
00512 default:
00513 case 4:
00514 if (!_networking && _local_company == c->index) {
00515
00516
00517
00518
00519 c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00520 break;
00521 }
00522
00523
00524 DoCommand(0, 2 | (c->index << 16), 0, DC_EXEC, CMD_COMPANY_CTRL);
00525 break;
00526 }
00527 }
00528
00533 static void CompaniesGenStatistics()
00534 {
00535 Station *st;
00536
00537 Backup<CompanyByte> cur_company(_current_company, FILE_LINE);
00538 FOR_ALL_STATIONS(st) {
00539 cur_company.Change(st->owner);
00540 CommandCost cost(EXPENSES_PROPERTY, _price[PR_STATION_VALUE] >> 1);
00541 SubtractMoneyFromCompany(cost);
00542 }
00543 cur_company.Restore();
00544
00545 if (!HasBit(1 << 0 | 1 << 3 | 1 << 6 | 1 << 9, _cur_month)) return;
00546
00547 Company *c;
00548 FOR_ALL_COMPANIES(c) {
00549 memmove(&c->old_economy[1], &c->old_economy[0], sizeof(c->old_economy) - sizeof(c->old_economy[0]));
00550 c->old_economy[0] = c->cur_economy;
00551 memset(&c->cur_economy, 0, sizeof(c->cur_economy));
00552
00553 if (c->num_valid_stat_ent != MAX_HISTORY_MONTHS) c->num_valid_stat_ent++;
00554
00555 UpdateCompanyRatingAndValue(c, true);
00556 if (c->block_preview != 0) c->block_preview--;
00557 CompanyCheckBankrupt(c);
00558 }
00559
00560 SetWindowDirty(WC_INCOME_GRAPH, 0);
00561 SetWindowDirty(WC_OPERATING_PROFIT, 0);
00562 SetWindowDirty(WC_DELIVERED_CARGO, 0);
00563 SetWindowDirty(WC_PERFORMANCE_HISTORY, 0);
00564 SetWindowDirty(WC_COMPANY_VALUE, 0);
00565 SetWindowDirty(WC_COMPANY_LEAGUE, 0);
00566 }
00567
00572 void AddInflation(bool check_year)
00573 {
00574
00575
00576
00577
00578
00579
00580
00581
00582
00583
00584
00585
00586
00587
00588
00589 if (check_year && (_cur_year - _settings_game.game_creation.starting_year) >= (ORIGINAL_MAX_YEAR - ORIGINAL_BASE_YEAR)) return;
00590
00591
00592
00593
00594
00595
00596 _economy.inflation_prices += min((_economy.inflation_prices * _economy.infl_amount * 54) >> 16, MAX_INFLATION);
00597 _economy.inflation_payment += min((_economy.inflation_payment * _economy.infl_amount_pr * 54) >> 16, MAX_INFLATION);
00598 }
00599
00603 void RecomputePrices()
00604 {
00605
00606 _economy.max_loan = (_settings_game.difficulty.max_loan * _economy.inflation_prices >> 16) / 50000 * 50000;
00607
00608
00609 for (Price i = PR_BEGIN; i < PR_END; i++) {
00610 Money price = _price_base_specs[i].start_price;
00611
00612
00613 uint mod = 1;
00614 switch (_price_base_specs[i].category) {
00615 case PCAT_RUNNING:
00616 mod = _settings_game.difficulty.vehicle_costs;
00617 break;
00618
00619 case PCAT_CONSTRUCTION:
00620 mod = _settings_game.difficulty.construction_cost;
00621 break;
00622
00623 default: break;
00624 }
00625 if (mod < 1) {
00626 price = price * 3 >> 2;
00627 } else if (mod > 1) {
00628 price = price * 9 >> 3;
00629 }
00630
00631
00632 price = (int64)price * _economy.inflation_prices;
00633
00634
00635 int shift = _price_base_multiplier[i] - 16;
00636 if (shift >= 0) {
00637 price <<= shift;
00638 } else {
00639 price >>= -shift;
00640 }
00641
00642
00643
00644
00645
00646
00647 if (price == 0) {
00648 price = Clamp(_price_base_specs[i].start_price, -1, 1);
00649
00650 assert(price != 0);
00651 }
00652
00653 _price[i] = price;
00654 }
00655
00656
00657 CargoSpec *cs;
00658 FOR_ALL_CARGOSPECS(cs) {
00659 cs->current_payment = ((int64)cs->initial_payment * _economy.inflation_payment) >> 16;
00660 }
00661
00662 SetWindowClassesDirty(WC_BUILD_VEHICLE);
00663 SetWindowClassesDirty(WC_REPLACE_VEHICLE);
00664 SetWindowClassesDirty(WC_VEHICLE_DETAILS);
00665 InvalidateWindowData(WC_PAYMENT_RATES, 0);
00666 }
00667
00669 static void CompaniesPayInterest()
00670 {
00671 const Company *c;
00672
00673 Backup<CompanyByte> cur_company(_current_company, FILE_LINE);
00674 FOR_ALL_COMPANIES(c) {
00675 cur_company.Change(c->index);
00676
00677
00678
00679
00680
00681
00682
00683
00684
00685 Money yearly_fee = c->current_loan * _economy.interest_rate / 100;
00686 Money up_to_previous_month = yearly_fee * _cur_month / 12;
00687 Money up_to_this_month = yearly_fee * (_cur_month + 1) / 12;
00688
00689 SubtractMoneyFromCompany(CommandCost(EXPENSES_LOAN_INT, up_to_this_month - up_to_previous_month));
00690
00691 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, _price[PR_STATION_VALUE] >> 2));
00692 }
00693 cur_company.Restore();
00694 }
00695
00696 static void HandleEconomyFluctuations()
00697 {
00698 if (_settings_game.difficulty.economy != 0) {
00699
00700 _economy.fluct--;
00701 } else if (EconomyIsInRecession()) {
00702
00703 _economy.fluct = -12;
00704 } else {
00705
00706 return;
00707 }
00708
00709 if (_economy.fluct == 0) {
00710 _economy.fluct = -(int)GB(Random(), 0, 2);
00711 AddNewsItem(STR_NEWS_BEGIN_OF_RECESSION, NS_ECONOMY);
00712 } else if (_economy.fluct == -12) {
00713 _economy.fluct = GB(Random(), 0, 8) + 312;
00714 AddNewsItem(STR_NEWS_END_OF_RECESSION, NS_ECONOMY);
00715 }
00716 }
00717
00718
00722 void ResetPriceBaseMultipliers()
00723 {
00724 memset(_price_base_multiplier, 0, sizeof(_price_base_multiplier));
00725 }
00726
00734 void SetPriceBaseMultiplier(Price price, int factor)
00735 {
00736 assert(price < PR_END);
00737 _price_base_multiplier[price] = Clamp(factor, MIN_PRICE_MODIFIER, MAX_PRICE_MODIFIER);
00738 }
00739
00744 void StartupIndustryDailyChanges(bool init_counter)
00745 {
00746 uint map_size = MapLogX() + MapLogY();
00747
00748
00749
00750
00751
00752
00753 _economy.industry_daily_increment = (1 << map_size) / 31;
00754
00755 if (init_counter) {
00756
00757 _economy.industry_daily_change_counter = 0;
00758 }
00759 }
00760
00761 void StartupEconomy()
00762 {
00763 _economy.interest_rate = _settings_game.difficulty.initial_interest;
00764 _economy.infl_amount = _settings_game.difficulty.initial_interest;
00765 _economy.infl_amount_pr = max(0, _settings_game.difficulty.initial_interest - 1);
00766 _economy.fluct = GB(Random(), 0, 8) + 168;
00767
00768
00769 RecomputePrices();
00770
00771 StartupIndustryDailyChanges(true);
00772
00773 }
00774
00778 void InitializeEconomy()
00779 {
00780 _economy.inflation_prices = _economy.inflation_payment = 1 << 16;
00781 }
00782
00791 Money GetPrice(Price index, uint cost_factor, const GRFFile *grf_file, int shift)
00792 {
00793 if (index >= PR_END) return 0;
00794
00795 Money cost = _price[index] * cost_factor;
00796 if (grf_file != NULL) shift += grf_file->price_base_multipliers[index];
00797
00798 if (shift >= 0) {
00799 cost <<= shift;
00800 } else {
00801 cost >>= -shift;
00802 }
00803
00804 return cost;
00805 }
00806
00807 Money GetTransportedGoodsIncome(uint num_pieces, uint dist, byte transit_days, CargoID cargo_type)
00808 {
00809 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00810 if (!cs->IsValid()) {
00811
00812 return 0;
00813 }
00814
00815
00816 if (HasBit(cs->callback_mask, CBM_CARGO_PROFIT_CALC)) {
00817 uint32 var18 = min(dist, 0xFFFF) | (min(num_pieces, 0xFF) << 16) | (transit_days << 24);
00818 uint16 callback = GetCargoCallback(CBID_CARGO_PROFIT_CALC, 0, var18, cs);
00819 if (callback != CALLBACK_FAILED) {
00820 int result = GB(callback, 0, 14);
00821
00822
00823 if (HasBit(callback, 14)) result -= 0x4000;
00824
00825
00826
00827
00828 return result * num_pieces * cs->current_payment / 8192;
00829 }
00830 }
00831
00832 static const int MIN_TIME_FACTOR = 31;
00833 static const int MAX_TIME_FACTOR = 255;
00834
00835 const int days1 = cs->transit_days[0];
00836 const int days2 = cs->transit_days[1];
00837 const int days_over_days1 = max( transit_days - days1, 0);
00838 const int days_over_days2 = max(days_over_days1 - days2, 0);
00839
00840
00841
00842
00843
00844
00845
00846
00847
00848
00849
00850 const int time_factor = max(MAX_TIME_FACTOR - days_over_days1 - days_over_days2, MIN_TIME_FACTOR);
00851
00852 return BigMulS(dist * time_factor * num_pieces, cs->current_payment, 21);
00853 }
00854
00856 static SmallIndustryList _cargo_delivery_destinations;
00857
00867 static uint DeliverGoodsToIndustry(const Station *st, CargoID cargo_type, uint num_pieces, IndustryID source)
00868 {
00869
00870
00871
00872
00873
00874
00875
00876 uint accepted = 0;
00877
00878 for (uint i = 0; i < st->industries_near.Length() && num_pieces != 0; i++) {
00879 Industry *ind = st->industries_near[i];
00880 if (ind->index == source) continue;
00881
00882 uint cargo_index;
00883 for (cargo_index = 0; cargo_index < lengthof(ind->accepts_cargo); cargo_index++) {
00884 if (cargo_type == ind->accepts_cargo[cargo_index]) break;
00885 }
00886
00887 if (cargo_index >= lengthof(ind->accepts_cargo)) continue;
00888
00889
00890 if (IndustryTemporarilyRefusesCargo(ind, cargo_type)) continue;
00891
00892
00893 _cargo_delivery_destinations.Include(ind);
00894
00895 uint amount = min(num_pieces, 0xFFFFU - ind->incoming_cargo_waiting[cargo_index]);
00896 ind->incoming_cargo_waiting[cargo_index] += amount;
00897 num_pieces -= amount;
00898 accepted += amount;
00899 }
00900
00901 return accepted;
00902 }
00903
00917 static Money DeliverGoods(int num_pieces, CargoID cargo_type, StationID dest, TileIndex source_tile, byte days_in_transit, Company *company, SourceType src_type, SourceID src)
00918 {
00919 assert(num_pieces > 0);
00920
00921 const Station *st = Station::Get(dest);
00922
00923
00924 uint accepted = DeliverGoodsToIndustry(st, cargo_type, num_pieces, src_type == ST_INDUSTRY ? src : INVALID_INDUSTRY);
00925
00926
00927 if (HasBit(st->always_accepted, cargo_type)) accepted = num_pieces;
00928
00929
00930 company->cur_economy.delivered_cargo += accepted;
00931 if (accepted > 0) SetBit(company->cargo_types, cargo_type);
00932
00933
00934 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00935 if (cs->town_effect == TE_FOOD) st->town->new_act_food += accepted;
00936 if (cs->town_effect == TE_WATER) st->town->new_act_water += accepted;
00937
00938
00939 Money profit = GetTransportedGoodsIncome(accepted, DistanceManhattan(source_tile, st->xy), days_in_transit, cargo_type);
00940
00941
00942 if (CheckSubsidised(cargo_type, company->index, src_type, src, st)) {
00943 switch (_settings_game.difficulty.subsidy_multiplier) {
00944 case 0: profit += profit >> 1; break;
00945 case 1: profit *= 2; break;
00946 case 2: profit *= 3; break;
00947 default: profit *= 4; break;
00948 }
00949 }
00950
00951 return profit;
00952 }
00953
00959 static void TriggerIndustryProduction(Industry *i)
00960 {
00961 const IndustrySpec *indspec = GetIndustrySpec(i->type);
00962 uint16 callback = indspec->callback_mask;
00963
00964 i->was_cargo_delivered = true;
00965 i->last_cargo_accepted_at = _date;
00966
00967 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
00968 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) {
00969 IndustryProductionCallback(i, 0);
00970 } else {
00971 SetWindowDirty(WC_INDUSTRY_VIEW, i->index);
00972 }
00973 } else {
00974 for (uint cargo_index = 0; cargo_index < lengthof(i->incoming_cargo_waiting); cargo_index++) {
00975 uint cargo_waiting = i->incoming_cargo_waiting[cargo_index];
00976 if (cargo_waiting == 0) continue;
00977
00978 i->produced_cargo_waiting[0] = min(i->produced_cargo_waiting[0] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][0] / 256), 0xFFFF);
00979 i->produced_cargo_waiting[1] = min(i->produced_cargo_waiting[1] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][1] / 256), 0xFFFF);
00980
00981 i->incoming_cargo_waiting[cargo_index] = 0;
00982 }
00983 }
00984
00985 TriggerIndustry(i, INDUSTRY_TRIGGER_RECEIVED_CARGO);
00986 StartStopIndustryTileAnimation(i, IAT_INDUSTRY_RECEIVED_CARGO);
00987 }
00988
00993 CargoPayment::CargoPayment(Vehicle *front) :
00994 front(front),
00995 current_station(front->last_station_visited)
00996 {
00997 }
00998
00999 CargoPayment::~CargoPayment()
01000 {
01001 if (this->CleaningPool()) return;
01002
01003 this->front->cargo_payment = NULL;
01004
01005 if (this->visual_profit == 0) return;
01006
01007 Backup<CompanyByte> cur_company(_current_company, this->front->owner, FILE_LINE);
01008
01009 SubtractMoneyFromCompany(CommandCost(this->front->GetExpenseType(true), -this->route_profit));
01010 this->front->profit_this_year += this->visual_profit << 8;
01011
01012 if (this->route_profit != 0) {
01013 if (IsLocalCompany() && !PlayVehicleSound(this->front, VSE_LOAD_UNLOAD)) {
01014 SndPlayVehicleFx(SND_14_CASHTILL, this->front);
01015 }
01016
01017 ShowCostOrIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, -this->visual_profit);
01018 } else {
01019 ShowFeederIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, this->visual_profit);
01020 }
01021
01022 cur_company.Restore();
01023 }
01024
01030 void CargoPayment::PayFinalDelivery(const CargoPacket *cp, uint count)
01031 {
01032 if (this->owner == NULL) {
01033 this->owner = Company::Get(this->front->owner);
01034 }
01035
01036
01037 Money profit = DeliverGoods(count, this->ct, this->current_station, cp->SourceStationXY(), cp->DaysInTransit(), this->owner, cp->SourceSubsidyType(), cp->SourceSubsidyID());
01038 this->route_profit += profit;
01039
01040
01041 this->visual_profit += profit - cp->FeederShare();
01042 }
01043
01050 Money CargoPayment::PayTransfer(const CargoPacket *cp, uint count)
01051 {
01052 Money profit = GetTransportedGoodsIncome(
01053 count,
01054
01055 DistanceManhattan(cp->LoadedAtXY(), Station::Get(this->current_station)->xy),
01056 cp->DaysInTransit(),
01057 this->ct);
01058
01059 profit = profit * _settings_game.economy.feeder_payment_share / 100;
01060
01061 this->visual_profit += profit;
01062 return profit;
01063 }
01064
01069 void PrepareUnload(Vehicle *front_v)
01070 {
01071
01072 ClrBit(front_v->vehicle_flags, VF_LOADING_FINISHED);
01073
01074
01075 front_v->load_unload_ticks = 1;
01076
01077 if ((front_v->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01078 for (Vehicle *v = front_v; v != NULL; v = v->Next()) {
01079 if (v->cargo_cap > 0 && !v->cargo.Empty()) {
01080 SetBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01081 }
01082 }
01083 }
01084
01085 assert(front_v->cargo_payment == NULL);
01086 front_v->cargo_payment = new CargoPayment(front_v);
01087 }
01088
01097 static void LoadUnloadVehicle(Vehicle *v, int *cargo_left)
01098 {
01099 assert(v->current_order.IsType(OT_LOADING));
01100
01101
01102 if (v->load_unload_ticks != 0) {
01103 if (_settings_game.order.improved_load && (v->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01104
01105 for (; v != NULL; v = v->Next()) {
01106 int cap_left = v->cargo_cap - v->cargo.Count();
01107 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01108 }
01109 }
01110 return;
01111 }
01112
01113 StationID last_visited = v->last_station_visited;
01114 Station *st = Station::Get(last_visited);
01115
01116 if (v->type == VEH_TRAIN && (!IsTileType(v->tile, MP_STATION) || GetStationIndex(v->tile) != st->index)) {
01117
01118
01119 SetBit(v->vehicle_flags, VF_LOADING_FINISHED);
01120 v->load_unload_ticks = 1;
01121 return;
01122 }
01123
01124 int unloading_time = 0;
01125 Vehicle *u = v;
01126 bool dirty_vehicle = false;
01127 bool dirty_station = false;
01128
01129 bool completely_emptied = true;
01130 bool anything_unloaded = false;
01131 bool anything_loaded = false;
01132 uint32 full_load_amount = 0;
01133 uint32 cargo_not_full = 0;
01134 uint32 cargo_full = 0;
01135
01136 v->cur_speed = 0;
01137
01138 CargoPayment *payment = v->cargo_payment;
01139
01140 for (; v != NULL; v = v->Next()) {
01141 if (v->cargo_cap == 0) continue;
01142
01143 const Engine *e = Engine::Get(v->engine_type);
01144 byte load_amount = e->info.load_amount;
01145
01146
01147 if (v->type == VEH_AIRCRAFT && !Aircraft::From(v)->IsNormalAircraft()) load_amount = CeilDiv(load_amount, 4);
01148
01149 if (_settings_game.order.gradual_loading && HasBit(e->info.callback_mask, CBM_VEHICLE_LOAD_AMOUNT)) {
01150 uint16 cb_load_amount = GetVehicleCallback(CBID_VEHICLE_LOAD_AMOUNT, 0, 0, v->engine_type, v);
01151 if (cb_load_amount != CALLBACK_FAILED && GB(cb_load_amount, 0, 8) != 0) load_amount = GB(cb_load_amount, 0, 8);
01152 }
01153
01154 GoodsEntry *ge = &st->goods[v->cargo_type];
01155
01156 if (HasBit(v->vehicle_flags, VF_CARGO_UNLOADING) && (u->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01157 uint cargo_count = v->cargo.Count();
01158 uint amount_unloaded = _settings_game.order.gradual_loading ? min(cargo_count, load_amount) : cargo_count;
01159 bool remaining = false;
01160 bool accepted = false;
01161
01162 payment->SetCargo(v->cargo_type);
01163
01164 if (HasBit(ge->acceptance_pickup, GoodsEntry::ACCEPTANCE) && !(u->current_order.GetUnloadType() & OUFB_TRANSFER)) {
01165
01166 remaining = v->cargo.MoveTo<StationCargoList>(NULL, amount_unloaded, VehicleCargoList::MTA_FINAL_DELIVERY, payment, last_visited);
01167
01168 dirty_vehicle = true;
01169 accepted = true;
01170 }
01171
01172
01173
01174
01175
01176
01177 if ((u->current_order.GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) && (!accepted || v->cargo.Count() == cargo_count)) {
01178 remaining = v->cargo.MoveTo(&ge->cargo, amount_unloaded, u->current_order.GetUnloadType() & OUFB_TRANSFER ? VehicleCargoList::MTA_TRANSFER : VehicleCargoList::MTA_UNLOAD, payment);
01179 if (!HasBit(ge->acceptance_pickup, GoodsEntry::PICKUP)) {
01180 InvalidateWindowData(WC_STATION_LIST, last_visited);
01181 SetBit(ge->acceptance_pickup, GoodsEntry::PICKUP);
01182 }
01183
01184 dirty_vehicle = dirty_station = true;
01185 } else if (!accepted) {
01186
01187
01188 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01189
01190
01191
01192
01193
01194 anything_unloaded = true;
01195 continue;
01196 }
01197
01198
01199 st->time_since_unload = 0;
01200
01201 unloading_time += amount_unloaded;
01202
01203 anything_unloaded = true;
01204 if (_settings_game.order.gradual_loading && remaining) {
01205 completely_emptied = false;
01206 } else {
01207
01208 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01209 }
01210
01211 continue;
01212 }
01213
01214
01215 if (u->current_order.GetLoadType() & OLFB_NO_LOAD || HasBit(u->vehicle_flags, VF_STOP_LOADING)) continue;
01216
01217
01218 int t;
01219 switch (u->type) {
01220 case VEH_TRAIN:
01221 case VEH_SHIP:
01222 t = u->vcache.cached_max_speed;
01223 break;
01224
01225 case VEH_ROAD:
01226 t = u->vcache.cached_max_speed / 2;
01227 break;
01228
01229 case VEH_AIRCRAFT:
01230 t = Aircraft::From(u)->GetSpeedOldUnits();
01231 break;
01232
01233 default: NOT_REACHED();
01234 }
01235
01236
01237 ge->last_speed = min(t, 255);
01238 ge->last_age = _cur_year - u->build_year;
01239 ge->days_since_pickup = 0;
01240
01241
01242
01243 int cap_left = v->cargo_cap - v->cargo.Count();
01244 if (!ge->cargo.Empty() && cap_left > 0) {
01245 uint cap = cap_left;
01246 uint count = ge->cargo.Count();
01247
01248
01249
01250 if (_settings_game.order.improved_load && cargo_left[v->cargo_type] <= 0) {
01251 SetBit(cargo_not_full, v->cargo_type);
01252 continue;
01253 }
01254
01255 if (cap > count) cap = count;
01256 if (_settings_game.order.gradual_loading) {
01257 cap = min(cap, load_amount);
01258 cap_left = min(cap_left, load_amount);
01259 }
01260 if (_settings_game.order.improved_load) {
01261
01262 cap = min((uint)cargo_left[v->cargo_type], cap);
01263 count = cargo_left[v->cargo_type];
01264 cargo_left[v->cargo_type] -= cap;
01265 }
01266
01267
01268 if (count >= (uint)cap_left) {
01269 SetBit(full_load_amount, v->cargo_type);
01270 } else {
01271 ClrBit(full_load_amount, v->cargo_type);
01272 }
01273
01274 if (v->cargo.Empty()) TriggerVehicle(v, VEHICLE_TRIGGER_NEW_CARGO);
01275
01276
01277
01278
01279
01280
01281
01282
01283 completely_emptied = false;
01284 anything_loaded = true;
01285
01286 ge->cargo.MoveTo(&v->cargo, cap, StationCargoList::MTA_CARGO_LOAD, NULL, st->xy);
01287
01288 st->time_since_load = 0;
01289 st->last_vehicle_type = v->type;
01290
01291 TriggerStationAnimation(st, st->xy, SAT_CARGO_TAKEN, v->cargo_type);
01292 AirportAnimationTrigger(st, AAT_STATION_CARGO_TAKEN, v->cargo_type);
01293
01294 unloading_time += cap;
01295
01296 dirty_vehicle = dirty_station = true;
01297 }
01298
01299 if (v->cargo.Count() >= v->cargo_cap) {
01300 SetBit(cargo_full, v->cargo_type);
01301 } else {
01302 SetBit(cargo_not_full, v->cargo_type);
01303 }
01304 }
01305
01306
01307 completely_emptied &= anything_unloaded;
01308
01309
01310
01311
01312
01313 if (_settings_game.order.improved_load && (u->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01314
01315 for (v = u; v != NULL; v = v->Next()) {
01316 int cap_left = v->cargo_cap - v->cargo.Count();
01317 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01318 }
01319 }
01320
01321 v = u;
01322
01323 if (!anything_unloaded) delete payment;
01324
01325 ClrBit(u->vehicle_flags, VF_STOP_LOADING);
01326 if (anything_loaded || anything_unloaded) {
01327 if (_settings_game.order.gradual_loading) {
01328
01329
01330 const uint gradual_loading_wait_time[] = { 40, 20, 10, 20 };
01331
01332 unloading_time = gradual_loading_wait_time[v->type];
01333 }
01334
01335
01336 if (!anything_unloaded && full_load_amount == 0 && !(v->current_order.GetLoadType() & OLFB_FULL_LOAD) &&
01337 v->current_order_time >= (uint)max(v->current_order.wait_time - v->lateness_counter, 0)) {
01338 SetBit(v->vehicle_flags, VF_STOP_LOADING);
01339 }
01340 } else {
01341 bool finished_loading = true;
01342 if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) {
01343 if (v->current_order.GetLoadType() == OLF_FULL_LOAD_ANY) {
01344
01345
01346 if ((v->type == VEH_AIRCRAFT && IsCargoInClass(v->cargo_type, CC_PASSENGERS) && v->cargo_cap > v->cargo.Count()) ||
01347 (cargo_not_full && (cargo_full & ~cargo_not_full) == 0)) {
01348 finished_loading = false;
01349 }
01350 } else if (cargo_not_full != 0) {
01351 finished_loading = false;
01352 }
01353 }
01354 unloading_time = 20;
01355
01356 SB(v->vehicle_flags, VF_LOADING_FINISHED, 1, finished_loading);
01357 }
01358
01359 if (v->type == VEH_TRAIN) {
01360
01361 int overhang = v->GetGroundVehicleCache()->cached_total_length - st->GetPlatformLength(v->tile) * TILE_SIZE;
01362 if (overhang > 0) {
01363 unloading_time <<= 1;
01364 unloading_time += (overhang * unloading_time) / 8;
01365 }
01366 }
01367
01368
01369
01370
01371
01372
01373
01374 if (_game_mode != GM_MENU && (_settings_client.gui.loading_indicators > (uint)(v->owner != _local_company && _local_company != COMPANY_SPECTATOR))) {
01375 StringID percent_up_down = STR_NULL;
01376 int percent = CalcPercentVehicleFilled(v, &percent_up_down);
01377 if (v->fill_percent_te_id == INVALID_TE_ID) {
01378 v->fill_percent_te_id = ShowFillingPercent(v->x_pos, v->y_pos, v->z_pos + 20, percent, percent_up_down);
01379 } else {
01380 UpdateFillingPercent(v->fill_percent_te_id, percent, percent_up_down);
01381 }
01382 }
01383
01384
01385 v->load_unload_ticks = max(1, unloading_time);
01386
01387 if (completely_emptied) {
01388 TriggerVehicle(v, VEHICLE_TRIGGER_EMPTY);
01389 }
01390
01391 if (dirty_vehicle) {
01392 SetWindowDirty(GetWindowClassForVehicleType(v->type), v->owner);
01393 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01394 v->MarkDirty();
01395 }
01396 if (dirty_station) {
01397 st->MarkTilesDirty(true);
01398 SetWindowDirty(WC_STATION_VIEW, last_visited);
01399 }
01400 }
01401
01407 void LoadUnloadStation(Station *st)
01408 {
01409
01410 if (st->loading_vehicles.empty()) return;
01411
01412 Vehicle *last_loading = NULL;
01413 std::list<Vehicle *>::iterator iter;
01414
01415
01416 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end(); ++iter) {
01417 Vehicle *v = *iter;
01418
01419 if ((v->vehstatus & (VS_STOPPED | VS_CRASHED))) continue;
01420
01421 assert(v->load_unload_ticks != 0);
01422 if (--v->load_unload_ticks == 0) last_loading = v;
01423 }
01424
01425
01426
01427
01428
01429
01430
01431
01432 if (last_loading == NULL) return;
01433
01434 int cargo_left[NUM_CARGO];
01435
01436 for (uint i = 0; i < NUM_CARGO; i++) cargo_left[i] = st->goods[i].cargo.Count();
01437
01438 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end(); ++iter) {
01439 Vehicle *v = *iter;
01440 if (!(v->vehstatus & (VS_STOPPED | VS_CRASHED))) LoadUnloadVehicle(v, cargo_left);
01441 if (v == last_loading) break;
01442 }
01443
01444
01445 const Industry * const *isend = _cargo_delivery_destinations.End();
01446 for (Industry **iid = _cargo_delivery_destinations.Begin(); iid != isend; iid++) {
01447 TriggerIndustryProduction(*iid);
01448 }
01449 _cargo_delivery_destinations.Clear();
01450 }
01451
01455 void CompaniesMonthlyLoop()
01456 {
01457 CompaniesGenStatistics();
01458 if (_settings_game.economy.inflation) {
01459 AddInflation();
01460 RecomputePrices();
01461 }
01462 CompaniesPayInterest();
01463 HandleEconomyFluctuations();
01464 }
01465
01466 static void DoAcquireCompany(Company *c)
01467 {
01468 CompanyID ci = c->index;
01469
01470 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
01471 cni->FillData(c, Company::Get(_current_company));
01472
01473 SetDParam(0, STR_NEWS_COMPANY_MERGER_TITLE);
01474 SetDParam(1, c->bankrupt_value == 0 ? STR_NEWS_MERGER_TAKEOVER_TITLE : STR_NEWS_COMPANY_MERGER_DESCRIPTION);
01475 SetDParamStr(2, cni->company_name);
01476 SetDParamStr(3, cni->other_company_name);
01477 SetDParam(4, c->bankrupt_value);
01478 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_MERGER, cni);
01479 AI::BroadcastNewEvent(new AIEventCompanyMerger(ci, _current_company));
01480
01481 ChangeOwnershipOfCompanyItems(ci, _current_company);
01482
01483 if (c->bankrupt_value == 0) {
01484 Company *owner = Company::Get(_current_company);
01485 owner->current_loan += c->current_loan;
01486 }
01487
01488 Money value = CalculateCompanyValue(c) >> 2;
01489 Backup<CompanyByte> cur_company(_current_company, FILE_LINE);
01490 for (int i = 0; i != 4; i++) {
01491 if (c->share_owners[i] != COMPANY_SPECTATOR) {
01492 cur_company.Change(c->share_owners[i]);
01493 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, -value));
01494 }
01495 }
01496 cur_company.Restore();
01497
01498 if (c->is_ai) AI::Stop(c->index);
01499
01500 DeleteCompanyWindows(ci);
01501 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01502 InvalidateWindowClassesData(WC_SHIPS_LIST, 0);
01503 InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
01504 InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
01505
01506 delete c;
01507 }
01508
01509 extern int GetAmountOwnedBy(const Company *c, Owner owner);
01510
01520 CommandCost CmdBuyShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01521 {
01522 CommandCost cost(EXPENSES_OTHER);
01523 CompanyID target_company = (CompanyID)p1;
01524 Company *c = Company::GetIfValid(target_company);
01525
01526
01527
01528 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == target_company) return CMD_ERROR;
01529
01530
01531 if (_cur_year - c->inaugurated_year < 6) return_cmd_error(STR_ERROR_PROTECTED);
01532
01533
01534 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 0) return cost;
01535
01536 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 1) {
01537 if (!c->is_ai) return cost;
01538
01539 if (GetAmountOwnedBy(c, _current_company) == 3 && !MayCompanyTakeOver(_current_company, target_company)) return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01540 }
01541
01542
01543 cost.AddCost(CalculateCompanyValue(c) >> 2);
01544 if (flags & DC_EXEC) {
01545 OwnerByte *b = c->share_owners;
01546
01547 while (*b != COMPANY_SPECTATOR) b++;
01548 *b = _current_company;
01549
01550 for (int i = 0; c->share_owners[i] == _current_company;) {
01551 if (++i == 4) {
01552 c->bankrupt_value = 0;
01553 DoAcquireCompany(c);
01554 break;
01555 }
01556 }
01557 SetWindowDirty(WC_COMPANY, target_company);
01558 CompanyAdminUpdate(c);
01559 }
01560 return cost;
01561 }
01562
01572 CommandCost CmdSellShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01573 {
01574 CompanyID target_company = (CompanyID)p1;
01575 Company *c = Company::GetIfValid(target_company);
01576
01577
01578
01579 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == target_company) return CMD_ERROR;
01580
01581
01582 if (GetAmountOwnedBy(c, _current_company) == 0) return CommandCost();
01583
01584
01585 Money cost = CalculateCompanyValue(c) >> 2;
01586 cost = -(cost - (cost >> 7));
01587
01588 if (flags & DC_EXEC) {
01589 OwnerByte *b = c->share_owners;
01590 while (*b != _current_company) b++;
01591 *b = COMPANY_SPECTATOR;
01592 SetWindowDirty(WC_COMPANY, target_company);
01593 CompanyAdminUpdate(c);
01594 }
01595 return CommandCost(EXPENSES_OTHER, cost);
01596 }
01597
01610 CommandCost CmdBuyCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01611 {
01612 CompanyID target_company = (CompanyID)p1;
01613 Company *c = Company::GetIfValid(target_company);
01614 if (c == NULL) return CMD_ERROR;
01615
01616
01617 if (!HasBit(c->bankrupt_asked, _current_company)) return CMD_ERROR;
01618
01619
01620 if (!_networking && _local_company == c->index) return CMD_ERROR;
01621
01622
01623 if (target_company == _current_company) return CMD_ERROR;
01624
01625
01626 if (!MayCompanyTakeOver(_current_company, target_company)) return CMD_ERROR;
01627
01628
01629 CommandCost cost(EXPENSES_OTHER, c->bankrupt_value);
01630
01631 if (flags & DC_EXEC) {
01632 DoAcquireCompany(c);
01633 }
01634 return cost;
01635 }