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00012 #include "stdafx.h"
00013 #include "tile_cmd.h"
00014 #include "company_func.h"
00015 #include "command_func.h"
00016 #include "industry.h"
00017 #include "town.h"
00018 #include "news_func.h"
00019 #include "network/network.h"
00020 #include "network/network_func.h"
00021 #include "vehicle_gui.h"
00022 #include "ai/ai.hpp"
00023 #include "aircraft.h"
00024 #include "train.h"
00025 #include "newgrf_cargo.h"
00026 #include "newgrf_engine.h"
00027 #include "newgrf_sound.h"
00028 #include "newgrf_industries.h"
00029 #include "newgrf_industrytiles.h"
00030 #include "newgrf_station.h"
00031 #include "unmovable.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 "gfx_func.h"
00040 #include "autoreplace_func.h"
00041 #include "company_gui.h"
00042 #include "signs_base.h"
00043 #include "subsidy_base.h"
00044 #include "subsidy_func.h"
00045 #include "station_base.h"
00046 #include "waypoint_base.h"
00047 #include "economy_base.h"
00048 #include "core/pool_func.hpp"
00049 #include "infrastructure_func.h"
00050
00051 #include "table/strings.h"
00052 #include "table/sprites.h"
00053 #include "table/pricebase.h"
00054
00055
00056
00057 CargoPaymentPool _cargo_payment_pool("CargoPayment");
00058 INSTANTIATE_POOL_METHODS(CargoPayment)
00059
00060
00071 static inline int32 BigMulS(const int32 a, const int32 b, const uint8 shift)
00072 {
00073 return (int32)((int64)a * (int64)b >> shift);
00074 }
00075
00087 static inline uint32 BigMulSU(const uint32 a, const uint32 b, const uint8 shift)
00088 {
00089 return (uint32)((uint64)a * (uint64)b >> shift);
00090 }
00091
00092 typedef SmallVector<Industry *, 16> SmallIndustryList;
00093
00094
00095 const ScoreInfo _score_info[] = {
00096 { SCORE_VEHICLES, 120, 100 },
00097 { SCORE_STATIONS, 80, 100 },
00098 { SCORE_MIN_PROFIT, 10000, 100 },
00099 { SCORE_MIN_INCOME, 50000, 50 },
00100 { SCORE_MAX_INCOME, 100000, 100 },
00101 { SCORE_DELIVERED, 40000, 400 },
00102 { SCORE_CARGO, 8, 50 },
00103 { SCORE_MONEY, 10000000, 50 },
00104 { SCORE_LOAN, 250000, 50 },
00105 { SCORE_TOTAL, 0, 0 }
00106 };
00107
00108 int _score_part[MAX_COMPANIES][SCORE_END];
00109 Economy _economy;
00110 Prices _price;
00111 Money _additional_cash_required;
00112 static PriceMultipliers _price_base_multiplier;
00113
00114 Money CalculateCompanyValue(const Company *c)
00115 {
00116 Owner owner = c->index;
00117 Money value = 0;
00118
00119 Station *st;
00120 uint num = 0;
00121
00122 FOR_ALL_STATIONS(st) {
00123 if (st->owner == owner) num += CountBits((byte)st->facilities);
00124 }
00125
00126 value += num * _price[PR_STATION_VALUE] * 25;
00127
00128 Vehicle *v;
00129 FOR_ALL_VEHICLES(v) {
00130 if (v->owner != owner) continue;
00131
00132 if (v->type == VEH_TRAIN ||
00133 v->type == VEH_ROAD ||
00134 (v->type == VEH_AIRCRAFT && Aircraft::From(v)->IsNormalAircraft()) ||
00135 v->type == VEH_SHIP) {
00136 value += v->value * 3 >> 1;
00137 }
00138 }
00139
00140
00141 value -= c->current_loan;
00142 value += c->money;
00143
00144 return max(value, (Money)1);
00145 }
00146
00153 int UpdateCompanyRatingAndValue(Company *c, bool update)
00154 {
00155 Owner owner = c->index;
00156 int score = 0;
00157
00158 memset(_score_part[owner], 0, sizeof(_score_part[owner]));
00159
00160
00161 {
00162 Vehicle *v;
00163 Money min_profit = 0;
00164 bool min_profit_first = true;
00165 uint num = 0;
00166
00167 FOR_ALL_VEHICLES(v) {
00168 if (v->owner != owner) continue;
00169 if (IsCompanyBuildableVehicleType(v->type) && v->IsPrimaryVehicle()) {
00170 if (v->profit_last_year > 0) num++;
00171 if (v->age > 730) {
00172
00173 if (min_profit_first || min_profit > v->profit_last_year) {
00174 min_profit = v->profit_last_year;
00175 min_profit_first = false;
00176 }
00177 }
00178 }
00179 }
00180
00181 min_profit >>= 8;
00182
00183 _score_part[owner][SCORE_VEHICLES] = num;
00184
00185 if (min_profit > 0)
00186 _score_part[owner][SCORE_MIN_PROFIT] = ClampToI32(min_profit);
00187 }
00188
00189
00190 {
00191 uint num = 0;
00192 const Station *st;
00193
00194 FOR_ALL_STATIONS(st) {
00195
00196 if (st->owner == owner && (st->time_since_load <= 20 || st->time_since_unload <= 20)) num += CountBits((byte)st->facilities);
00197 }
00198 _score_part[owner][SCORE_STATIONS] = num;
00199 }
00200
00201
00202 {
00203 int numec = min(c->num_valid_stat_ent, 12);
00204 if (numec != 0) {
00205 const CompanyEconomyEntry *cee = c->old_economy;
00206 Money min_income = cee->income + cee->expenses;
00207 Money max_income = cee->income + cee->expenses;
00208
00209 do {
00210 min_income = min(min_income, cee->income + cee->expenses);
00211 max_income = max(max_income, cee->income + cee->expenses);
00212 } while (++cee, --numec);
00213
00214 if (min_income > 0) {
00215 _score_part[owner][SCORE_MIN_INCOME] = ClampToI32(min_income);
00216 }
00217
00218 _score_part[owner][SCORE_MAX_INCOME] = ClampToI32(max_income);
00219 }
00220 }
00221
00222
00223 {
00224 const CompanyEconomyEntry *cee;
00225 int numec;
00226 uint32 total_delivered;
00227
00228 numec = min(c->num_valid_stat_ent, 4);
00229 if (numec != 0) {
00230 cee = c->old_economy;
00231 total_delivered = 0;
00232 do {
00233 total_delivered += cee->delivered_cargo;
00234 } while (++cee, --numec);
00235
00236 _score_part[owner][SCORE_DELIVERED] = total_delivered;
00237 }
00238 }
00239
00240
00241 {
00242 uint num = CountBits(c->cargo_types);
00243 _score_part[owner][SCORE_CARGO] = num;
00244 if (update) c->cargo_types = 0;
00245 }
00246
00247
00248 {
00249 if (c->money > 0) {
00250 _score_part[owner][SCORE_MONEY] = ClampToI32(c->money);
00251 }
00252 }
00253
00254
00255 {
00256 _score_part[owner][SCORE_LOAN] = ClampToI32(_score_info[SCORE_LOAN].needed - c->current_loan);
00257 }
00258
00259
00260 {
00261 int total_score = 0;
00262 int s;
00263 score = 0;
00264 for (ScoreID i = SCORE_BEGIN; i < SCORE_END; i++) {
00265
00266 if (i == SCORE_TOTAL) continue;
00267
00268 s = Clamp(_score_part[owner][i], 0, _score_info[i].needed) * _score_info[i].score / _score_info[i].needed;
00269 score += s;
00270 total_score += _score_info[i].score;
00271 }
00272
00273 _score_part[owner][SCORE_TOTAL] = score;
00274
00275
00276 if (total_score != SCORE_MAX) score = score * SCORE_MAX / total_score;
00277 }
00278
00279 if (update) {
00280 c->old_economy[0].performance_history = score;
00281 UpdateCompanyHQ(c, score);
00282 c->old_economy[0].company_value = CalculateCompanyValue(c);
00283 }
00284
00285 SetWindowDirty(WC_PERFORMANCE_DETAIL, 0);
00286 return score;
00287 }
00288
00289
00290 void ChangeOwnershipOfCompanyItems(Owner old_owner, Owner new_owner)
00291 {
00292 Town *t;
00293 CompanyID old = _current_company;
00294
00295 assert(old_owner != new_owner);
00296
00297 {
00298 Company *c;
00299 uint i;
00300
00301
00302 _current_company = old_owner;
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 c = Company::Get(old_owner);
00317 for (i = 0; i < 4; i++) {
00318 _current_company = c->share_owners[i];
00319 if (_current_company != INVALID_OWNER) {
00320
00321 CommandCost res = DoCommand(0, old_owner, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);
00322
00323
00324 SubtractMoneyFromCompany(res);
00325 }
00326 }
00327 }
00328
00329 _current_company = old_owner;
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 if (new_owner != INVALID_OWNER) {
00372 FreeUnitIDGenerator unitidgen[] = {
00373 FreeUnitIDGenerator(VEH_TRAIN, new_owner), FreeUnitIDGenerator(VEH_ROAD, new_owner),
00374 FreeUnitIDGenerator(VEH_SHIP, new_owner), FreeUnitIDGenerator(VEH_AIRCRAFT, new_owner)
00375 };
00376
00377 Vehicle *v;
00378 FOR_ALL_VEHICLES(v) {
00379 if (v->owner == old_owner && IsCompanyBuildableVehicleType(v->type)) {
00380 v->owner = new_owner;
00381 v->colourmap = PAL_NONE;
00382 if (v->IsEngineCountable()) Company::Get(new_owner)->num_engines[v->engine_type]++;
00383 if (v->IsPrimaryVehicle()) v->unitnumber = unitidgen[v->type].NextID();
00384 }
00385 }
00386 } else {
00387
00388
00389 HandleSharingCompanyDeletion(old_owner);
00390 }
00391
00392
00393 {
00394 TileIndex tile = 0;
00395 do {
00396 ChangeTileOwner(tile, old_owner, new_owner);
00397 } while (++tile != MapSize());
00398
00399 if (new_owner != INVALID_OWNER) {
00400
00401
00402
00403
00404 UpdateAllBlockSignals(new_owner);
00405 } else if (_settings_game.sharing.sharing_rail) {
00406
00407
00408 UpdateAllBlockSignals();
00409 }
00410 }
00411
00412
00413 Station *st;
00414 FOR_ALL_STATIONS(st) {
00415 if (st->owner == old_owner) {
00416
00417
00418 st->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00419 }
00420 }
00421
00422
00423 Waypoint *wp;
00424 FOR_ALL_WAYPOINTS(wp) {
00425 if (wp->owner == old_owner) {
00426 wp->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00427 }
00428 }
00429
00430
00431
00432 RemoveAllEngineReplacementForCompany(Company::Get(old_owner));
00433
00434 if (new_owner == INVALID_OWNER) {
00435 RemoveAllGroupsForCompany(old_owner);
00436 } else {
00437 Group *g;
00438 FOR_ALL_GROUPS(g) {
00439 if (g->owner == old_owner) g->owner = new_owner;
00440 }
00441 }
00442
00443 Sign *si;
00444 FOR_ALL_SIGNS(si) {
00445 if (si->owner == old_owner) si->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00446 }
00447
00448
00449 if (new_owner != INVALID_OWNER) ChangeWindowOwner(old_owner, new_owner);
00450
00451 _current_company = old;
00452
00453 MarkWholeScreenDirty();
00454 }
00455
00456 static void ChangeNetworkOwner(Owner current_owner, Owner new_owner)
00457 {
00458 #ifdef ENABLE_NETWORK
00459 if (!_networking) return;
00460
00461 if (current_owner == _local_company) {
00462 SetLocalCompany(new_owner);
00463 }
00464
00465 if (!_network_server) return;
00466
00467 NetworkServerChangeOwner(current_owner, new_owner);
00468 #endif
00469 }
00470
00471 static void CompanyCheckBankrupt(Company *c)
00472 {
00473
00474 if (c->money >= 0) {
00475 c->quarters_of_bankruptcy = 0;
00476 c->bankrupt_asked = 0;
00477 return;
00478 }
00479
00480 c->quarters_of_bankruptcy++;
00481
00482 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00483 cni->FillData(c);
00484
00485 switch (c->quarters_of_bankruptcy) {
00486 case 0:
00487 case 1:
00488 free(cni);
00489 break;
00490
00491 case 2:
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 case 3: {
00499
00500
00501 Money val = CalculateCompanyValue(c);
00502 if (val > 0) {
00503 c->bankrupt_value = val;
00504 c->bankrupt_asked = 1 << c->index;
00505 c->bankrupt_timeout = 0;
00506 free(cni);
00507 break;
00508 }
00509
00510 }
00511 default:
00512 case 4:
00513 if (!_networking && _local_company == c->index) {
00514
00515
00516
00517
00518 c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00519 free(cni);
00520 break;
00521 }
00522
00523
00524 DeleteCompanyWindows(c->index);
00525
00526
00527 SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
00528 SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
00529 SetDParamStr(2, cni->company_name);
00530 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
00531
00532
00533 ChangeNetworkOwner(c->index, COMPANY_SPECTATOR);
00534 ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00535
00536 if (c->is_ai) AI::Stop(c->index);
00537
00538 CompanyID c_index = c->index;
00539 delete c;
00540 AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00541 }
00542 }
00543
00544 static void CompaniesGenStatistics()
00545 {
00546 Station *st;
00547 Company *c;
00548
00549 FOR_ALL_STATIONS(st) {
00550 _current_company = st->owner;
00551 CommandCost cost(EXPENSES_PROPERTY, _price[PR_STATION_VALUE] >> 1);
00552 SubtractMoneyFromCompany(cost);
00553 }
00554
00555 if (!HasBit(1 << 0 | 1 << 3 | 1 << 6 | 1 << 9, _cur_month))
00556 return;
00557
00558 FOR_ALL_COMPANIES(c) {
00559 memmove(&c->old_economy[1], &c->old_economy[0], sizeof(c->old_economy) - sizeof(c->old_economy[0]));
00560 c->old_economy[0] = c->cur_economy;
00561 memset(&c->cur_economy, 0, sizeof(c->cur_economy));
00562
00563 if (c->num_valid_stat_ent != MAX_HISTORY_MONTHS) c->num_valid_stat_ent++;
00564
00565 UpdateCompanyRatingAndValue(c, true);
00566 if (c->block_preview != 0) c->block_preview--;
00567 CompanyCheckBankrupt(c);
00568 }
00569
00570 SetWindowDirty(WC_INCOME_GRAPH, 0);
00571 SetWindowDirty(WC_OPERATING_PROFIT, 0);
00572 SetWindowDirty(WC_DELIVERED_CARGO, 0);
00573 SetWindowDirty(WC_PERFORMANCE_HISTORY, 0);
00574 SetWindowDirty(WC_COMPANY_VALUE, 0);
00575 SetWindowDirty(WC_COMPANY_LEAGUE, 0);
00576 }
00577
00582 void AddInflation(bool check_year)
00583 {
00584
00585
00586
00587
00588
00589
00590
00591
00592
00593
00594
00595
00596
00597
00598
00599 if (check_year && (_cur_year - _settings_game.game_creation.starting_year) >= (ORIGINAL_MAX_YEAR - ORIGINAL_BASE_YEAR)) return;
00600
00601
00602
00603
00604
00605
00606 _economy.inflation_prices += min((_economy.inflation_prices * _economy.infl_amount * 54) >> 16, MAX_INFLATION);
00607 _economy.inflation_payment += min((_economy.inflation_payment * _economy.infl_amount_pr * 54) >> 16, MAX_INFLATION);
00608 }
00609
00613 void RecomputePrices()
00614 {
00615
00616 _economy.max_loan = (_settings_game.difficulty.max_loan * _economy.inflation_prices >> 16) / 50000 * 50000;
00617
00618
00619 for (Price i = PR_BEGIN; i < PR_END; i++) {
00620 Money price = _price_base_specs[i].start_price;
00621
00622
00623 uint mod = 1;
00624 switch (_price_base_specs[i].category) {
00625 case PCAT_RUNNING:
00626 mod = _settings_game.difficulty.vehicle_costs;
00627 break;
00628
00629 case PCAT_CONSTRUCTION:
00630 mod = _settings_game.difficulty.construction_cost;
00631 break;
00632
00633 default: break;
00634 }
00635 if (mod < 1) {
00636 price = price * 3 >> 2;
00637 } else if (mod > 1) {
00638 price = price * 9 >> 3;
00639 }
00640
00641
00642 price = (int64)price * _economy.inflation_prices;
00643
00644
00645 int shift = _price_base_multiplier[i] - 16;
00646 if (shift >= 0) {
00647 price <<= shift;
00648 } else {
00649 price >>= -shift;
00650 }
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 SetWindowDirty(WC_PAYMENT_RATES, 0);
00666 }
00667
00668 static void CompaniesPayInterest()
00669 {
00670 const Company *c;
00671
00672 FOR_ALL_COMPANIES(c) {
00673 _current_company = c->index;
00674
00675
00676
00677
00678
00679
00680
00681
00682
00683 Money yearly_fee = c->current_loan * _economy.interest_rate / 100;
00684 Money up_to_previous_month = yearly_fee * _cur_month / 12;
00685 Money up_to_this_month = yearly_fee * (_cur_month + 1) / 12;
00686
00687 SubtractMoneyFromCompany(CommandCost(EXPENSES_LOAN_INT, up_to_this_month - up_to_previous_month));
00688
00689 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, _price[PR_STATION_VALUE] >> 2));
00690 }
00691 }
00692
00693 static void HandleEconomyFluctuations()
00694 {
00695 if (_settings_game.difficulty.economy != 0) {
00696
00697 _economy.fluct--;
00698 } else if (_economy.fluct <= 0) {
00699
00700 _economy.fluct = -12;
00701 } else {
00702
00703 return;
00704 }
00705
00706 if (_economy.fluct == 0) {
00707 _economy.fluct = -(int)GB(Random(), 0, 2);
00708 AddNewsItem(STR_NEWS_BEGIN_OF_RECESSION, NS_ECONOMY);
00709 } else if (_economy.fluct == -12) {
00710 _economy.fluct = GB(Random(), 0, 8) + 312;
00711 AddNewsItem(STR_NEWS_END_OF_RECESSION, NS_ECONOMY);
00712 }
00713 }
00714
00715
00719 void ResetPriceBaseMultipliers()
00720 {
00721 memset(_price_base_multiplier, 0, sizeof(_price_base_multiplier));
00722 }
00723
00731 void SetPriceBaseMultiplier(Price price, int factor)
00732 {
00733 assert(price < PR_END);
00734 _price_base_multiplier[price] = Clamp(factor, MIN_PRICE_MODIFIER, MAX_PRICE_MODIFIER);
00735 }
00736
00741 void StartupIndustryDailyChanges(bool init_counter)
00742 {
00743 uint map_size = MapLogX() + MapLogY();
00744
00745
00746
00747
00748
00749
00750 _economy.industry_daily_increment = (1 << map_size) / 31;
00751
00752 if (init_counter) {
00753
00754 _economy.industry_daily_change_counter = 0;
00755 }
00756 }
00757
00758 void StartupEconomy()
00759 {
00760 _economy.interest_rate = _settings_game.difficulty.initial_interest;
00761 _economy.infl_amount = _settings_game.difficulty.initial_interest;
00762 _economy.infl_amount_pr = max(0, _settings_game.difficulty.initial_interest - 1);
00763 _economy.fluct = GB(Random(), 0, 8) + 168;
00764
00765
00766 RecomputePrices();
00767
00768 StartupIndustryDailyChanges(true);
00769
00770 }
00771
00775 void InitializeEconomy()
00776 {
00777 _economy.inflation_prices = _economy.inflation_payment = 1 << 16;
00778 }
00779
00788 Money GetPrice(Price index, uint cost_factor, const GRFFile *grf_file, int shift)
00789 {
00790 if (index >= PR_END) return 0;
00791
00792 Money cost = _price[index] * cost_factor;
00793 if (grf_file != NULL) shift += grf_file->price_base_multipliers[index];
00794
00795 if (shift >= 0) {
00796 cost <<= shift;
00797 } else {
00798 cost >>= -shift;
00799 }
00800
00801 return cost;
00802 }
00803
00804 Money GetTransportedGoodsIncome(uint num_pieces, uint dist, byte transit_days, CargoID cargo_type)
00805 {
00806 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00807 if (!cs->IsValid()) {
00808
00809 return 0;
00810 }
00811
00812
00813 if (HasBit(cs->callback_mask, CBM_CARGO_PROFIT_CALC)) {
00814 uint32 var18 = min(dist, 0xFFFF) | (min(num_pieces, 0xFF) << 16) | (transit_days << 24);
00815 uint16 callback = GetCargoCallback(CBID_CARGO_PROFIT_CALC, 0, var18, cs);
00816 if (callback != CALLBACK_FAILED) {
00817 int result = GB(callback, 0, 14);
00818
00819
00820 if (HasBit(callback, 14)) result -= 0x4000;
00821
00822
00823
00824
00825 return result * num_pieces * cs->current_payment / 8192;
00826 }
00827 }
00828
00829 static const int MIN_TIME_FACTOR = 31;
00830 static const int MAX_TIME_FACTOR = 255;
00831
00832 const int days1 = cs->transit_days[0];
00833 const int days2 = cs->transit_days[1];
00834 const int days_over_days1 = max( transit_days - days1, 0);
00835 const int days_over_days2 = max(days_over_days1 - days2, 0);
00836
00837
00838
00839
00840
00841
00842
00843
00844
00845
00846
00847 const int time_factor = max(MAX_TIME_FACTOR - days_over_days1 - days_over_days2, MIN_TIME_FACTOR);
00848
00849 return BigMulS(dist * time_factor * num_pieces, cs->current_payment, 21);
00850 }
00851
00853 static SmallIndustryList _cargo_delivery_destinations;
00854
00864 static uint DeliverGoodsToIndustry(const Station *st, CargoID cargo_type, uint num_pieces, IndustryID source)
00865 {
00866
00867
00868
00869
00870
00871
00872
00873 uint accepted = 0;
00874
00875 for (uint i = 0; i < st->industries_near.Length() && num_pieces != 0; i++) {
00876 Industry *ind = st->industries_near[i];
00877 if (ind->index == source) continue;
00878
00879 const IndustrySpec *indspec = GetIndustrySpec(ind->type);
00880
00881 uint cargo_index;
00882 for (cargo_index = 0; cargo_index < lengthof(ind->accepts_cargo); cargo_index++) {
00883 if (cargo_type == ind->accepts_cargo[cargo_index]) break;
00884 }
00885
00886 if (cargo_index >= lengthof(ind->accepts_cargo)) continue;
00887
00888
00889 if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
00890 uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO, 0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile), ind, ind->type, ind->xy);
00891 if (res == 0) continue;
00892 }
00893
00894
00895 _cargo_delivery_destinations.Include(ind);
00896
00897 uint amount = min(num_pieces, 0xFFFFU - ind->incoming_cargo_waiting[cargo_index]);
00898 ind->incoming_cargo_waiting[cargo_index] += amount;
00899 num_pieces -= amount;
00900 accepted += amount;
00901 }
00902
00903 return accepted;
00904 }
00905
00919 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)
00920 {
00921 assert(num_pieces > 0);
00922
00923 const Station *st = Station::Get(dest);
00924
00925
00926 uint accepted = DeliverGoodsToIndustry(st, cargo_type, num_pieces, src_type == ST_INDUSTRY ? src : INVALID_INDUSTRY);
00927
00928
00929 if (HasBit(st->always_accepted, cargo_type)) accepted = num_pieces;
00930
00931
00932 company->cur_economy.delivered_cargo += accepted;
00933 if (accepted > 0) SetBit(company->cargo_types, cargo_type);
00934
00935
00936 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00937 if (cs->town_effect == TE_FOOD) st->town->new_act_food += accepted;
00938 if (cs->town_effect == TE_WATER) st->town->new_act_water += accepted;
00939
00940
00941 Money profit = GetTransportedGoodsIncome(accepted, DistanceManhattan(source_tile, st->xy), days_in_transit, cargo_type);
00942
00943
00944 if (CheckSubsidised(cargo_type, company->index, src_type, src, st)) {
00945 switch (_settings_game.difficulty.subsidy_multiplier) {
00946 case 0: profit += profit >> 1; break;
00947 case 1: profit *= 2; break;
00948 case 2: profit *= 3; break;
00949 default: profit *= 4; break;
00950 }
00951 }
00952
00953 return profit;
00954 }
00955
00961 static void TriggerIndustryProduction(Industry *i)
00962 {
00963 const IndustrySpec *indspec = GetIndustrySpec(i->type);
00964 uint16 callback = indspec->callback_mask;
00965
00966 i->was_cargo_delivered = true;
00967 i->last_cargo_accepted_at = _date;
00968
00969 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
00970 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) {
00971 IndustryProductionCallback(i, 0);
00972 } else {
00973 SetWindowDirty(WC_INDUSTRY_VIEW, i->index);
00974 }
00975 } else {
00976 for (uint cargo_index = 0; cargo_index < lengthof(i->incoming_cargo_waiting); cargo_index++) {
00977 uint cargo_waiting = i->incoming_cargo_waiting[cargo_index];
00978 if (cargo_waiting == 0) continue;
00979
00980 i->produced_cargo_waiting[0] = min(i->produced_cargo_waiting[0] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][0] / 256), 0xFFFF);
00981 i->produced_cargo_waiting[1] = min(i->produced_cargo_waiting[1] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][1] / 256), 0xFFFF);
00982
00983 i->incoming_cargo_waiting[cargo_index] = 0;
00984 }
00985 }
00986
00987 TriggerIndustry(i, INDUSTRY_TRIGGER_RECEIVED_CARGO);
00988 StartStopIndustryTileAnimation(i, IAT_INDUSTRY_RECEIVED_CARGO);
00989 }
00990
00995 CargoPayment::CargoPayment(Vehicle *front) :
00996 front(front),
00997 current_station(front->last_station_visited)
00998 {
00999 }
01000
01001 CargoPayment::~CargoPayment()
01002 {
01003 if (this->CleaningPool()) return;
01004
01005 this->front->cargo_payment = NULL;
01006
01007 if (this->visual_profit == 0) return;
01008
01009 CompanyID old_company = _current_company;
01010 _current_company = this->front->owner;
01011
01012 SubtractMoneyFromCompany(CommandCost(this->front->GetExpenseType(true), -this->route_profit));
01013 this->front->profit_this_year += this->visual_profit << 8;
01014
01015 if (this->route_profit != 0) {
01016 if (IsLocalCompany() && !PlayVehicleSound(this->front, VSE_LOAD_UNLOAD)) {
01017 SndPlayVehicleFx(SND_14_CASHTILL, this->front);
01018 }
01019
01020 ShowCostOrIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, -this->visual_profit);
01021 } else {
01022 ShowFeederIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, this->visual_profit);
01023 }
01024
01025 _current_company = old_company;
01026 }
01027
01033 void CargoPayment::PayFinalDelivery(const CargoPacket *cp, uint count)
01034 {
01035 if (this->owner == NULL) {
01036 this->owner = Company::Get(this->front->owner);
01037 }
01038
01039
01040 Money profit = DeliverGoods(count, this->ct, this->current_station, cp->SourceStationXY(), cp->DaysInTransit(), this->owner, cp->SourceSubsidyType(), cp->SourceSubsidyID());
01041 this->route_profit += profit;
01042
01043
01044 this->visual_profit += profit - cp->FeederShare();
01045 }
01046
01053 Money CargoPayment::PayTransfer(const CargoPacket *cp, uint count)
01054 {
01055 Money profit = GetTransportedGoodsIncome(
01056 count,
01057
01058 DistanceManhattan(cp->LoadedAtXY(), Station::Get(this->current_station)->xy),
01059 cp->DaysInTransit(),
01060 this->ct);
01061
01062 this->visual_profit += profit;
01063 return profit;
01064 }
01065
01070 void PrepareUnload(Vehicle *front_v)
01071 {
01072
01073 ClrBit(front_v->vehicle_flags, VF_LOADING_FINISHED);
01074
01075
01076 front_v->time_counter = 1;
01077
01078 if ((front_v->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01079 for (Vehicle *v = front_v; v != NULL; v = v->Next()) {
01080 if (v->cargo_cap > 0 && !v->cargo.Empty()) {
01081 SetBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01082 }
01083 }
01084 }
01085
01086 assert(front_v->cargo_payment == NULL);
01087 front_v->cargo_payment = new CargoPayment(front_v);
01088 }
01089
01098 static void LoadUnloadVehicle(Vehicle *v, int *cargo_left)
01099 {
01100 assert(v->current_order.IsType(OT_LOADING));
01101
01102 assert(v->time_counter != 0);
01103
01104
01105 if (--v->time_counter != 0) {
01106 if (_settings_game.order.improved_load && (v->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01107
01108 for (; v != NULL; v = v->Next()) {
01109 int cap_left = v->cargo_cap - v->cargo.Count();
01110 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01111 }
01112 }
01113 return;
01114 }
01115
01116 StationID last_visited = v->last_station_visited;
01117 Station *st = Station::Get(last_visited);
01118
01119 if (v->type == VEH_TRAIN && (!IsTileType(v->tile, MP_STATION) || GetStationIndex(v->tile) != st->index)) {
01120
01121
01122 SetBit(v->vehicle_flags, VF_LOADING_FINISHED);
01123 v->time_counter = 1;
01124 return;
01125 }
01126
01127 int unloading_time = 0;
01128 Vehicle *u = v;
01129 bool dirty_vehicle = false;
01130 bool dirty_station = false;
01131
01132 bool completely_emptied = true;
01133 bool anything_unloaded = false;
01134 bool anything_loaded = false;
01135 uint32 cargo_not_full = 0;
01136 uint32 cargo_full = 0;
01137
01138 v->cur_speed = 0;
01139
01140 CargoPayment *payment = v->cargo_payment;
01141
01142 for (; v != NULL; v = v->Next()) {
01143 if (v->cargo_cap == 0) continue;
01144
01145 const Engine *e = Engine::Get(v->engine_type);
01146 byte load_amount = e->info.load_amount;
01147
01148
01149 if (v->type == VEH_AIRCRAFT && !Aircraft::From(v)->IsNormalAircraft()) load_amount = (load_amount + 3) / 4;
01150
01151 if (_settings_game.order.gradual_loading && HasBit(e->info.callback_mask, CBM_VEHICLE_LOAD_AMOUNT)) {
01152 uint16 cb_load_amount = GetVehicleCallback(CBID_VEHICLE_LOAD_AMOUNT, 0, 0, v->engine_type, v);
01153 if (cb_load_amount != CALLBACK_FAILED && GB(cb_load_amount, 0, 8) != 0) load_amount = GB(cb_load_amount, 0, 8);
01154 }
01155
01156 GoodsEntry *ge = &st->goods[v->cargo_type];
01157
01158 if (HasBit(v->vehicle_flags, VF_CARGO_UNLOADING) && (u->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01159 uint cargo_count = v->cargo.Count();
01160 uint amount_unloaded = _settings_game.order.gradual_loading ? min(cargo_count, load_amount) : cargo_count;
01161 bool remaining = false;
01162 bool accepted = false;
01163
01164 payment->SetCargo(v->cargo_type);
01165
01166 if (HasBit(ge->acceptance_pickup, GoodsEntry::ACCEPTANCE) && !(u->current_order.GetUnloadType() & OUFB_TRANSFER)) {
01167
01168 remaining = v->cargo.MoveTo<StationCargoList>(NULL, amount_unloaded, VehicleCargoList::MTA_FINAL_DELIVERY, payment, last_visited);
01169
01170 dirty_vehicle = true;
01171 accepted = true;
01172 }
01173
01174
01175
01176
01177
01178
01179 if ((u->current_order.GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) && (!accepted || v->cargo.Count() == cargo_count)) {
01180 remaining = v->cargo.MoveTo(&ge->cargo, amount_unloaded, u->current_order.GetUnloadType() & OUFB_TRANSFER ? VehicleCargoList::MTA_TRANSFER : VehicleCargoList::MTA_UNLOAD, payment);
01181 SetBit(ge->acceptance_pickup, GoodsEntry::PICKUP);
01182
01183 dirty_vehicle = dirty_station = true;
01184 } else if (!accepted) {
01185
01186
01187 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01188
01189
01190
01191
01192
01193 anything_unloaded = true;
01194 continue;
01195 }
01196
01197
01198 st->time_since_unload = 0;
01199
01200 unloading_time += amount_unloaded;
01201
01202 anything_unloaded = true;
01203 if (_settings_game.order.gradual_loading && remaining) {
01204 completely_emptied = false;
01205 } else {
01206
01207 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01208 }
01209
01210 continue;
01211 }
01212
01213
01214 if (u->current_order.GetLoadType() & OLFB_NO_LOAD) continue;
01215
01216
01217 int t;
01218 switch (u->type) {
01219 case VEH_TRAIN: t = Train::From(u)->tcache.cached_max_speed; break;
01220 case VEH_ROAD: t = u->max_speed / 2; break;
01221 case VEH_SHIP: t = u->max_speed; break;
01222 case VEH_AIRCRAFT: t = u->max_speed * 10 / 129; break;
01223 default: NOT_REACHED();
01224 }
01225
01226
01227 ge->last_speed = min(t, 255);
01228 ge->last_age = _cur_year - u->build_year;
01229 ge->days_since_pickup = 0;
01230
01231
01232
01233 int cap_left = v->cargo_cap - v->cargo.Count();
01234 if (!ge->cargo.Empty() && cap_left > 0) {
01235 uint cap = cap_left;
01236 uint count = ge->cargo.Count();
01237
01238
01239
01240 if (_settings_game.order.improved_load && cargo_left[v->cargo_type] <= 0) {
01241 SetBit(cargo_not_full, v->cargo_type);
01242 continue;
01243 }
01244
01245 if (cap > count) cap = count;
01246 if (_settings_game.order.gradual_loading) cap = min(cap, load_amount);
01247 if (_settings_game.order.improved_load) {
01248
01249 cap = min((uint)cargo_left[v->cargo_type], cap);
01250 cargo_left[v->cargo_type] -= cap;
01251 }
01252
01253 if (v->cargo.Empty()) TriggerVehicle(v, VEHICLE_TRIGGER_NEW_CARGO);
01254
01255
01256
01257
01258
01259
01260
01261
01262 completely_emptied = false;
01263 anything_loaded = true;
01264
01265 ge->cargo.MoveTo(&v->cargo, cap, StationCargoList::MTA_CARGO_LOAD, NULL, st->xy);
01266
01267 st->time_since_load = 0;
01268 st->last_vehicle_type = v->type;
01269
01270 StationAnimationTrigger(st, st->xy, STAT_ANIM_CARGO_TAKEN, v->cargo_type);
01271
01272 unloading_time += cap;
01273
01274 dirty_vehicle = dirty_station = true;
01275 }
01276
01277 if (v->cargo.Count() >= v->cargo_cap) {
01278 SetBit(cargo_full, v->cargo_type);
01279 } else {
01280 SetBit(cargo_not_full, v->cargo_type);
01281 }
01282 }
01283
01284
01285 completely_emptied &= anything_unloaded;
01286
01287
01288
01289
01290
01291 if (_settings_game.order.improved_load && (u->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01292
01293 for (v = u; v != NULL; v = v->Next()) {
01294 int cap_left = v->cargo_cap - v->cargo.Count();
01295 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01296 }
01297 }
01298
01299 v = u;
01300
01301 if (!anything_unloaded) delete payment;
01302
01303 if (anything_loaded || anything_unloaded) {
01304 if (_settings_game.order.gradual_loading) {
01305
01306
01307 const uint gradual_loading_wait_time[] = { 40, 20, 10, 20 };
01308
01309 unloading_time = gradual_loading_wait_time[v->type];
01310 }
01311 } else {
01312 bool finished_loading = true;
01313 if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) {
01314 if (v->current_order.GetLoadType() == OLF_FULL_LOAD_ANY) {
01315
01316
01317 if ((v->type == VEH_AIRCRAFT && IsCargoInClass(v->cargo_type, CC_PASSENGERS) && v->cargo_cap > v->cargo.Count()) ||
01318 (cargo_not_full && (cargo_full & ~cargo_not_full) == 0)) {
01319 finished_loading = false;
01320 }
01321 } else if (cargo_not_full != 0) {
01322 finished_loading = false;
01323 }
01324 }
01325 unloading_time = 20;
01326
01327 SB(v->vehicle_flags, VF_LOADING_FINISHED, 1, finished_loading);
01328 }
01329
01330 if (v->type == VEH_TRAIN) {
01331
01332 int overhang = Train::From(v)->tcache.cached_total_length - st->GetPlatformLength(v->tile) * TILE_SIZE;
01333 if (overhang > 0) {
01334 unloading_time <<= 1;
01335 unloading_time += (overhang * unloading_time) / 8;
01336 }
01337 }
01338
01339
01340
01341
01342
01343
01344
01345 if (_game_mode != GM_MENU && (_settings_client.gui.loading_indicators > (uint)(v->owner != _local_company && _local_company != COMPANY_SPECTATOR))) {
01346 StringID percent_up_down = STR_NULL;
01347 int percent = CalcPercentVehicleFilled(v, &percent_up_down);
01348 if (v->fill_percent_te_id == INVALID_TE_ID) {
01349 v->fill_percent_te_id = ShowFillingPercent(v->x_pos, v->y_pos, v->z_pos + 20, percent, percent_up_down);
01350 } else {
01351 UpdateFillingPercent(v->fill_percent_te_id, percent, percent_up_down);
01352 }
01353 }
01354
01355
01356 v->time_counter = max(1, unloading_time);
01357
01358 if (completely_emptied) {
01359 TriggerVehicle(v, VEHICLE_TRIGGER_EMPTY);
01360 }
01361
01362 if (dirty_vehicle) {
01363 SetWindowDirty(GetWindowClassForVehicleType(v->type), v->owner);
01364 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01365 v->MarkDirty();
01366 }
01367 if (dirty_station) {
01368 st->MarkTilesDirty(true);
01369 SetWindowDirty(WC_STATION_VIEW, last_visited);
01370 }
01371 }
01372
01378 void LoadUnloadStation(Station *st)
01379 {
01380
01381 if (st->loading_vehicles.empty()) return;
01382
01383 int cargo_left[NUM_CARGO];
01384
01385 for (uint i = 0; i < NUM_CARGO; i++) cargo_left[i] = st->goods[i].cargo.Count();
01386
01387 std::list<Vehicle *>::iterator iter;
01388 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end(); ++iter) {
01389 Vehicle *v = *iter;
01390 if (!(v->vehstatus & (VS_STOPPED | VS_CRASHED))) LoadUnloadVehicle(v, cargo_left);
01391 }
01392
01393
01394 const Industry * const *isend = _cargo_delivery_destinations.End();
01395 for (Industry **iid = _cargo_delivery_destinations.Begin(); iid != isend; iid++) {
01396 TriggerIndustryProduction(*iid);
01397 }
01398 _cargo_delivery_destinations.Clear();
01399 }
01400
01401 void CompaniesMonthlyLoop()
01402 {
01403 CompaniesGenStatistics();
01404 if (_settings_game.economy.inflation) {
01405 AddInflation();
01406 RecomputePrices();
01407 }
01408 CompaniesPayInterest();
01409
01410 _current_company = OWNER_NONE;
01411 HandleEconomyFluctuations();
01412 }
01413
01414 static void DoAcquireCompany(Company *c)
01415 {
01416 Company *owner;
01417 int i;
01418 Money value;
01419 CompanyID ci = c->index;
01420
01421 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
01422 cni->FillData(c, Company::Get(_current_company));
01423
01424 SetDParam(0, STR_NEWS_COMPANY_MERGER_TITLE);
01425 SetDParam(1, c->bankrupt_value == 0 ? STR_NEWS_MERGER_TAKEOVER_TITLE : STR_NEWS_COMPANY_MERGER_DESCRIPTION);
01426 SetDParamStr(2, cni->company_name);
01427 SetDParamStr(3, cni->other_company_name);
01428 SetDParam(4, c->bankrupt_value);
01429 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_MERGER, cni);
01430 AI::BroadcastNewEvent(new AIEventCompanyMerger(ci, _current_company));
01431
01432
01433 ChangeNetworkOwner(ci, _current_company);
01434 ChangeOwnershipOfCompanyItems(ci, _current_company);
01435
01436 if (c->bankrupt_value == 0) {
01437 owner = Company::Get(_current_company);
01438 owner->current_loan += c->current_loan;
01439 }
01440
01441 value = CalculateCompanyValue(c) >> 2;
01442 CompanyID old_company = _current_company;
01443 for (i = 0; i != 4; i++) {
01444 if (c->share_owners[i] != COMPANY_SPECTATOR) {
01445 _current_company = c->share_owners[i];
01446 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, -value));
01447 }
01448 }
01449 _current_company = old_company;
01450
01451 if (c->is_ai) AI::Stop(c->index);
01452
01453 DeleteCompanyWindows(ci);
01454 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01455 InvalidateWindowClassesData(WC_SHIPS_LIST, 0);
01456 InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
01457 InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
01458
01459 delete c;
01460 }
01461
01462 extern int GetAmountOwnedBy(const Company *c, Owner owner);
01463
01472 CommandCost CmdBuyShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01473 {
01474 CommandCost cost(EXPENSES_OTHER);
01475
01476 Company *c = Company::GetIfValid(p1);
01477
01478
01479
01480 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == (CompanyID)p1) return CMD_ERROR;
01481
01482
01483 if (_cur_year - c->inaugurated_year < 6) return_cmd_error(STR_ERROR_PROTECTED);
01484
01485
01486 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 0) return cost;
01487
01488
01489 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 1 && !c->is_ai) return cost;
01490
01491 cost.AddCost(CalculateCompanyValue(c) >> 2);
01492 if (flags & DC_EXEC) {
01493 OwnerByte *b = c->share_owners;
01494 int i;
01495
01496 while (*b != COMPANY_SPECTATOR) b++;
01497 *b = _current_company;
01498
01499 for (i = 0; c->share_owners[i] == _current_company;) {
01500 if (++i == 4) {
01501 c->bankrupt_value = 0;
01502 DoAcquireCompany(c);
01503 break;
01504 }
01505 }
01506 SetWindowDirty(WC_COMPANY, p1);
01507 }
01508 return cost;
01509 }
01510
01519 CommandCost CmdSellShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01520 {
01521 Company *c = Company::GetIfValid(p1);
01522
01523
01524
01525 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == (CompanyID)p1) return CMD_ERROR;
01526
01527
01528 if (GetAmountOwnedBy(c, _current_company) == 0) return CommandCost();
01529
01530
01531 Money cost = CalculateCompanyValue(c) >> 2;
01532 cost = -(cost - (cost >> 7));
01533
01534 if (flags & DC_EXEC) {
01535 OwnerByte *b = c->share_owners;
01536 while (*b != _current_company) b++;
01537 *b = COMPANY_SPECTATOR;
01538 SetWindowDirty(WC_COMPANY, p1);
01539 }
01540 return CommandCost(EXPENSES_OTHER, cost);
01541 }
01542
01554 CommandCost CmdBuyCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01555 {
01556 Company *c = Company::GetIfValid(p1);
01557 if (c == NULL) return CMD_ERROR;
01558
01559
01560 if (!HasBit(c->bankrupt_asked, _current_company)) return CMD_ERROR;
01561
01562
01563 if (!_networking && _local_company == c->index) return CMD_ERROR;
01564
01565
01566 if ((CompanyID)p1 == _current_company) return CMD_ERROR;
01567
01568
01569 CommandCost cost(EXPENSES_OTHER, c->bankrupt_value);
01570
01571 if (flags & DC_EXEC) {
01572 DoAcquireCompany(c);
01573 }
01574 return cost;
01575 }