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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 "train.h"
00024 #include "newgrf_cargo.h"
00025 #include "newgrf_engine.h"
00026 #include "newgrf_sound.h"
00027 #include "newgrf_industries.h"
00028 #include "newgrf_industrytiles.h"
00029 #include "newgrf_station.h"
00030 #include "unmovable.h"
00031 #include "group.h"
00032 #include "strings_func.h"
00033 #include "functions.h"
00034 #include "window_func.h"
00035 #include "date_func.h"
00036 #include "vehicle_func.h"
00037 #include "sound_func.h"
00038 #include "autoreplace_func.h"
00039 #include "company_gui.h"
00040 #include "signs_base.h"
00041 #include "subsidy_base.h"
00042 #include "subsidy_func.h"
00043 #include "station_base.h"
00044 #include "waypoint_base.h"
00045 #include "economy_base.h"
00046 #include "core/pool_func.hpp"
00047 #include "newgrf.h"
00048 #include "engine_base.h"
00049
00050 #include "table/strings.h"
00051 #include "table/sprites.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
00086 static inline uint32 BigMulSU(const uint32 a, const uint32 b, const uint8 shift)
00087 {
00088 return (uint32)((uint64)a * (uint64)b >> shift);
00089 }
00090
00091 typedef SmallVector<Industry *, 16> SmallIndustryList;
00092
00093
00094 const ScoreInfo _score_info[] = {
00095 { SCORE_VEHICLES, 120, 100 },
00096 { SCORE_STATIONS, 80, 100 },
00097 { SCORE_MIN_PROFIT, 10000, 100 },
00098 { SCORE_MIN_INCOME, 50000, 50 },
00099 { SCORE_MAX_INCOME, 100000, 100 },
00100 { SCORE_DELIVERED, 40000, 400 },
00101 { SCORE_CARGO, 8, 50 },
00102 { SCORE_MONEY, 10000000, 50 },
00103 { SCORE_LOAN, 250000, 50 },
00104 { SCORE_TOTAL, 0, 0 }
00105 };
00106
00107 int _score_part[MAX_COMPANIES][SCORE_END];
00108 Economy _economy;
00109 Prices _price;
00110 Money _additional_cash_required;
00111 static PriceMultipliers _price_base_multiplier;
00112
00122 Money CalculateCompanyValue(const Company *c, bool including_loan)
00123 {
00124 Owner owner = c->index;
00125 Money value = 0;
00126
00127 Station *st;
00128 uint num = 0;
00129
00130 FOR_ALL_STATIONS(st) {
00131 if (st->owner == owner) num += CountBits((byte)st->facilities);
00132 }
00133
00134 value += num * _price[PR_STATION_VALUE] * 25;
00135
00136 Vehicle *v;
00137 FOR_ALL_VEHICLES(v) {
00138 if (v->owner != owner) continue;
00139
00140 if (v->type == VEH_TRAIN ||
00141 v->type == VEH_ROAD ||
00142 (v->type == VEH_AIRCRAFT && Aircraft::From(v)->IsNormalAircraft()) ||
00143 v->type == VEH_SHIP) {
00144 value += v->value * 3 >> 1;
00145 }
00146 }
00147
00148
00149 if (including_loan) value -= c->current_loan;
00150 value += c->money;
00151
00152 return max(value, (Money)1);
00153 }
00154
00161 int UpdateCompanyRatingAndValue(Company *c, bool update)
00162 {
00163 Owner owner = c->index;
00164 int score = 0;
00165
00166 memset(_score_part[owner], 0, sizeof(_score_part[owner]));
00167
00168
00169 {
00170 Vehicle *v;
00171 Money min_profit = 0;
00172 bool min_profit_first = true;
00173 uint num = 0;
00174
00175 FOR_ALL_VEHICLES(v) {
00176 if (v->owner != owner) continue;
00177 if (IsCompanyBuildableVehicleType(v->type) && v->IsPrimaryVehicle()) {
00178 if (v->profit_last_year > 0) num++;
00179 if (v->age > 730) {
00180
00181 if (min_profit_first || min_profit > v->profit_last_year) {
00182 min_profit = v->profit_last_year;
00183 min_profit_first = false;
00184 }
00185 }
00186 }
00187 }
00188
00189 min_profit >>= 8;
00190
00191 _score_part[owner][SCORE_VEHICLES] = num;
00192
00193 if (min_profit > 0)
00194 _score_part[owner][SCORE_MIN_PROFIT] = ClampToI32(min_profit);
00195 }
00196
00197
00198 {
00199 uint num = 0;
00200 const Station *st;
00201
00202 FOR_ALL_STATIONS(st) {
00203
00204 if (st->owner == owner && (st->time_since_load <= 20 || st->time_since_unload <= 20)) num += CountBits((byte)st->facilities);
00205 }
00206 _score_part[owner][SCORE_STATIONS] = num;
00207 }
00208
00209
00210 {
00211 int numec = min(c->num_valid_stat_ent, 12);
00212 if (numec != 0) {
00213 const CompanyEconomyEntry *cee = c->old_economy;
00214 Money min_income = cee->income + cee->expenses;
00215 Money max_income = cee->income + cee->expenses;
00216
00217 do {
00218 min_income = min(min_income, cee->income + cee->expenses);
00219 max_income = max(max_income, cee->income + cee->expenses);
00220 } while (++cee, --numec);
00221
00222 if (min_income > 0) {
00223 _score_part[owner][SCORE_MIN_INCOME] = ClampToI32(min_income);
00224 }
00225
00226 _score_part[owner][SCORE_MAX_INCOME] = ClampToI32(max_income);
00227 }
00228 }
00229
00230
00231 {
00232 const CompanyEconomyEntry *cee;
00233 int numec;
00234 uint32 total_delivered;
00235
00236 numec = min(c->num_valid_stat_ent, 4);
00237 if (numec != 0) {
00238 cee = c->old_economy;
00239 total_delivered = 0;
00240 do {
00241 total_delivered += cee->delivered_cargo;
00242 } while (++cee, --numec);
00243
00244 _score_part[owner][SCORE_DELIVERED] = total_delivered;
00245 }
00246 }
00247
00248
00249 {
00250 uint num = CountBits(c->cargo_types);
00251 _score_part[owner][SCORE_CARGO] = num;
00252 if (update) c->cargo_types = 0;
00253 }
00254
00255
00256 {
00257 if (c->money > 0) {
00258 _score_part[owner][SCORE_MONEY] = ClampToI32(c->money);
00259 }
00260 }
00261
00262
00263 {
00264 _score_part[owner][SCORE_LOAN] = ClampToI32(_score_info[SCORE_LOAN].needed - c->current_loan);
00265 }
00266
00267
00268 {
00269 int total_score = 0;
00270 int s;
00271 score = 0;
00272 for (ScoreID i = SCORE_BEGIN; i < SCORE_END; i++) {
00273
00274 if (i == SCORE_TOTAL) continue;
00275
00276 s = Clamp(_score_part[owner][i], 0, _score_info[i].needed) * _score_info[i].score / _score_info[i].needed;
00277 score += s;
00278 total_score += _score_info[i].score;
00279 }
00280
00281 _score_part[owner][SCORE_TOTAL] = score;
00282
00283
00284 if (total_score != SCORE_MAX) score = score * SCORE_MAX / total_score;
00285 }
00286
00287 if (update) {
00288 c->old_economy[0].performance_history = score;
00289 UpdateCompanyHQ(c, score);
00290 c->old_economy[0].company_value = CalculateCompanyValue(c);
00291 }
00292
00293 SetWindowDirty(WC_PERFORMANCE_DETAIL, 0);
00294 return score;
00295 }
00296
00297
00298 void ChangeOwnershipOfCompanyItems(Owner old_owner, Owner new_owner)
00299 {
00300 Town *t;
00301 CompanyID old = _current_company;
00302
00303 assert(old_owner != new_owner);
00304
00305 {
00306 Company *c;
00307 uint i;
00308
00309
00310 _current_company = old_owner;
00311 FOR_ALL_COMPANIES(c) {
00312 for (i = 0; i < 4; i++) {
00313 if (c->share_owners[i] == old_owner) {
00314
00315 CommandCost res = DoCommand(0, c->index, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);
00316
00317
00318 SubtractMoneyFromCompany(res);
00319 }
00320 }
00321 }
00322
00323
00324 c = Company::Get(old_owner);
00325 for (i = 0; i < 4; i++) {
00326 _current_company = c->share_owners[i];
00327 if (_current_company != INVALID_OWNER) {
00328
00329 CommandCost res = DoCommand(0, old_owner, 0, DC_EXEC, CMD_SELL_SHARE_IN_COMPANY);
00330
00331
00332 SubtractMoneyFromCompany(res);
00333 }
00334 }
00335 }
00336
00337 _current_company = old_owner;
00338
00339
00340
00341
00342 if (new_owner == INVALID_OWNER) {
00343 Company::Get(old_owner)->money = UINT64_MAX >> 2;
00344 }
00345
00346 Subsidy *s;
00347 FOR_ALL_SUBSIDIES(s) {
00348 if (s->awarded == old_owner) {
00349 if (new_owner == INVALID_OWNER) {
00350 delete s;
00351 } else {
00352 s->awarded = new_owner;
00353 }
00354 }
00355 }
00356 if (new_owner == INVALID_OWNER) RebuildSubsidisedSourceAndDestinationCache();
00357
00358
00359 FOR_ALL_TOWNS(t) {
00360
00361 if (new_owner != INVALID_OWNER) {
00362 if (HasBit(t->have_ratings, old_owner)) {
00363 if (HasBit(t->have_ratings, new_owner)) {
00364
00365 t->ratings[new_owner] = max(t->ratings[new_owner], t->ratings[old_owner]);
00366 } else {
00367 SetBit(t->have_ratings, new_owner);
00368 t->ratings[new_owner] = t->ratings[old_owner];
00369 }
00370 }
00371 }
00372
00373
00374 t->ratings[old_owner] = RATING_INITIAL;
00375 ClrBit(t->have_ratings, old_owner);
00376 }
00377
00378 {
00379 FreeUnitIDGenerator unitidgen[] = {
00380 FreeUnitIDGenerator(VEH_TRAIN, new_owner), FreeUnitIDGenerator(VEH_ROAD, new_owner),
00381 FreeUnitIDGenerator(VEH_SHIP, new_owner), FreeUnitIDGenerator(VEH_AIRCRAFT, new_owner)
00382 };
00383
00384 Vehicle *v;
00385 FOR_ALL_VEHICLES(v) {
00386 if (v->owner == old_owner && IsCompanyBuildableVehicleType(v->type)) {
00387 if (new_owner == INVALID_OWNER) {
00388 if (v->Previous() == NULL) delete v;
00389 } else {
00390 v->owner = new_owner;
00391 v->colourmap = PAL_NONE;
00392 if (v->IsEngineCountable()) Company::Get(new_owner)->num_engines[v->engine_type]++;
00393 if (v->IsPrimaryVehicle()) v->unitnumber = unitidgen[v->type].NextID();
00394 }
00395 }
00396 }
00397 }
00398
00399
00400 {
00401 TileIndex tile = 0;
00402 do {
00403 ChangeTileOwner(tile, old_owner, new_owner);
00404 } while (++tile != MapSize());
00405
00406 if (new_owner != INVALID_OWNER) {
00407
00408
00409
00410
00411 tile = 0;
00412
00413 do {
00414 if (IsTileType(tile, MP_RAILWAY) && IsTileOwner(tile, new_owner) && HasSignals(tile)) {
00415 TrackBits tracks = GetTrackBits(tile);
00416 do {
00417 Track track = RemoveFirstTrack(&tracks);
00418 if (HasSignalOnTrack(tile, track)) AddTrackToSignalBuffer(tile, track, new_owner);
00419 } while (tracks != TRACK_BIT_NONE);
00420 } else if (IsLevelCrossingTile(tile) && IsTileOwner(tile, new_owner)) {
00421 UpdateLevelCrossing(tile);
00422 }
00423 } while (++tile != MapSize());
00424 }
00425
00426
00427 UpdateSignalsInBuffer();
00428 }
00429
00430
00431 Station *st;
00432 FOR_ALL_STATIONS(st) {
00433 if (st->owner == old_owner) {
00434
00435
00436 st->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00437 }
00438 }
00439
00440
00441 Waypoint *wp;
00442 FOR_ALL_WAYPOINTS(wp) {
00443 if (wp->owner == old_owner) {
00444 wp->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00445 }
00446 }
00447
00448
00449
00450 RemoveAllEngineReplacementForCompany(Company::Get(old_owner));
00451
00452 if (new_owner == INVALID_OWNER) {
00453 RemoveAllGroupsForCompany(old_owner);
00454 } else {
00455 Group *g;
00456 FOR_ALL_GROUPS(g) {
00457 if (g->owner == old_owner) g->owner = new_owner;
00458 }
00459 }
00460
00461 Sign *si;
00462 FOR_ALL_SIGNS(si) {
00463 if (si->owner == old_owner) si->owner = new_owner == INVALID_OWNER ? OWNER_NONE : new_owner;
00464 }
00465
00466
00467 if (new_owner != INVALID_OWNER) ChangeWindowOwner(old_owner, new_owner);
00468
00469 _current_company = old;
00470
00471 MarkWholeScreenDirty();
00472 }
00473
00474 static void ChangeNetworkOwner(Owner current_owner, Owner new_owner)
00475 {
00476 #ifdef ENABLE_NETWORK
00477 if (!_networking) return;
00478
00479 if (current_owner == _local_company) {
00480 SetLocalCompany(new_owner);
00481 }
00482
00483 if (!_network_server) return;
00484
00485 NetworkServerChangeOwner(current_owner, new_owner);
00486 #endif
00487 }
00488
00489 static void CompanyCheckBankrupt(Company *c)
00490 {
00491
00492 if (c->money >= 0) {
00493 c->quarters_of_bankruptcy = 0;
00494 c->bankrupt_asked = 0;
00495 return;
00496 }
00497
00498 c->quarters_of_bankruptcy++;
00499
00500 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00501 cni->FillData(c);
00502
00503 switch (c->quarters_of_bankruptcy) {
00504 case 0:
00505 case 1:
00506 free(cni);
00507 break;
00508
00509 case 2:
00510 SetDParam(0, STR_NEWS_COMPANY_IN_TROUBLE_TITLE);
00511 SetDParam(1, STR_NEWS_COMPANY_IN_TROUBLE_DESCRIPTION);
00512 SetDParamStr(2, cni->company_name);
00513 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_TROUBLE, cni);
00514 AI::BroadcastNewEvent(new AIEventCompanyInTrouble(c->index));
00515 break;
00516 case 3: {
00517
00518
00519 Money val = CalculateCompanyValue(c, false);
00520 if (val > 0) {
00521 c->bankrupt_value = val;
00522 c->bankrupt_asked = 1 << c->index;
00523 c->bankrupt_timeout = 0;
00524 free(cni);
00525 break;
00526 }
00527
00528 }
00529 default:
00530 case 4:
00531 if (!_networking && _local_company == c->index) {
00532
00533
00534
00535
00536 c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00537 free(cni);
00538 break;
00539 }
00540
00541
00542 DeleteCompanyWindows(c->index);
00543
00544
00545 SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
00546 SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
00547 SetDParamStr(2, cni->company_name);
00548 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
00549
00550
00551 ChangeNetworkOwner(c->index, COMPANY_SPECTATOR);
00552 ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00553
00554 if (c->is_ai) AI::Stop(c->index);
00555
00556 CompanyID c_index = c->index;
00557 delete c;
00558 AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00559 }
00560 }
00561
00562 static void CompaniesGenStatistics()
00563 {
00564 Station *st;
00565 Company *c;
00566
00567 FOR_ALL_STATIONS(st) {
00568 _current_company = st->owner;
00569 CommandCost cost(EXPENSES_PROPERTY, _price[PR_STATION_VALUE] >> 1);
00570 SubtractMoneyFromCompany(cost);
00571 }
00572
00573 if (!HasBit(1 << 0 | 1 << 3 | 1 << 6 | 1 << 9, _cur_month))
00574 return;
00575
00576 FOR_ALL_COMPANIES(c) {
00577 memmove(&c->old_economy[1], &c->old_economy[0], sizeof(c->old_economy) - sizeof(c->old_economy[0]));
00578 c->old_economy[0] = c->cur_economy;
00579 memset(&c->cur_economy, 0, sizeof(c->cur_economy));
00580
00581 if (c->num_valid_stat_ent != MAX_HISTORY_MONTHS) c->num_valid_stat_ent++;
00582
00583 UpdateCompanyRatingAndValue(c, true);
00584 if (c->block_preview != 0) c->block_preview--;
00585 CompanyCheckBankrupt(c);
00586 }
00587
00588 SetWindowDirty(WC_INCOME_GRAPH, 0);
00589 SetWindowDirty(WC_OPERATING_PROFIT, 0);
00590 SetWindowDirty(WC_DELIVERED_CARGO, 0);
00591 SetWindowDirty(WC_PERFORMANCE_HISTORY, 0);
00592 SetWindowDirty(WC_COMPANY_VALUE, 0);
00593 SetWindowDirty(WC_COMPANY_LEAGUE, 0);
00594 }
00595
00600 void AddInflation(bool check_year)
00601 {
00602
00603
00604
00605
00606
00607
00608
00609
00610
00611
00612
00613
00614
00615
00616
00617 if (check_year && (_cur_year - _settings_game.game_creation.starting_year) >= (ORIGINAL_MAX_YEAR - ORIGINAL_BASE_YEAR)) return;
00618
00619
00620
00621
00622
00623
00624 _economy.inflation_prices += min((_economy.inflation_prices * _economy.infl_amount * 54) >> 16, MAX_INFLATION);
00625 _economy.inflation_payment += min((_economy.inflation_payment * _economy.infl_amount_pr * 54) >> 16, MAX_INFLATION);
00626 }
00627
00631 void RecomputePrices()
00632 {
00633
00634 _economy.max_loan = (_settings_game.difficulty.max_loan * _economy.inflation_prices >> 16) / 50000 * 50000;
00635
00636
00637 for (Price i = PR_BEGIN; i < PR_END; i++) {
00638 Money price = _price_base_specs[i].start_price;
00639
00640
00641 uint mod = 1;
00642 switch (_price_base_specs[i].category) {
00643 case PCAT_RUNNING:
00644 mod = _settings_game.difficulty.vehicle_costs;
00645 break;
00646
00647 case PCAT_CONSTRUCTION:
00648 mod = _settings_game.difficulty.construction_cost;
00649 break;
00650
00651 default: break;
00652 }
00653 if (mod < 1) {
00654 price = price * 3 >> 2;
00655 } else if (mod > 1) {
00656 price = price * 9 >> 3;
00657 }
00658
00659
00660 price = (int64)price * _economy.inflation_prices;
00661
00662
00663 int shift = _price_base_multiplier[i] - 16;
00664 if (shift >= 0) {
00665 price <<= shift;
00666 } else {
00667 price >>= -shift;
00668 }
00669
00670
00671
00672
00673
00674
00675 if (price == 0) {
00676 price = Clamp(_price_base_specs[i].start_price, -1, 1);
00677
00678 assert(price != 0);
00679 }
00680
00681 _price[i] = price;
00682 }
00683
00684
00685 CargoSpec *cs;
00686 FOR_ALL_CARGOSPECS(cs) {
00687 cs->current_payment = ((int64)cs->initial_payment * _economy.inflation_payment) >> 16;
00688 }
00689
00690 SetWindowClassesDirty(WC_BUILD_VEHICLE);
00691 SetWindowClassesDirty(WC_REPLACE_VEHICLE);
00692 SetWindowClassesDirty(WC_VEHICLE_DETAILS);
00693 SetWindowDirty(WC_PAYMENT_RATES, 0);
00694 }
00695
00696 static void CompaniesPayInterest()
00697 {
00698 const Company *c;
00699
00700 FOR_ALL_COMPANIES(c) {
00701 _current_company = c->index;
00702
00703
00704
00705
00706
00707
00708
00709
00710
00711 Money yearly_fee = c->current_loan * _economy.interest_rate / 100;
00712 Money up_to_previous_month = yearly_fee * _cur_month / 12;
00713 Money up_to_this_month = yearly_fee * (_cur_month + 1) / 12;
00714
00715 SubtractMoneyFromCompany(CommandCost(EXPENSES_LOAN_INT, up_to_this_month - up_to_previous_month));
00716
00717 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, _price[PR_STATION_VALUE] >> 2));
00718 }
00719 }
00720
00721 static void HandleEconomyFluctuations()
00722 {
00723 if (_settings_game.difficulty.economy != 0) {
00724
00725 _economy.fluct--;
00726 } else if (_economy.fluct <= 0) {
00727
00728 _economy.fluct = -12;
00729 } else {
00730
00731 return;
00732 }
00733
00734 if (_economy.fluct == 0) {
00735 _economy.fluct = -(int)GB(Random(), 0, 2);
00736 AddNewsItem(STR_NEWS_BEGIN_OF_RECESSION, NS_ECONOMY);
00737 } else if (_economy.fluct == -12) {
00738 _economy.fluct = GB(Random(), 0, 8) + 312;
00739 AddNewsItem(STR_NEWS_END_OF_RECESSION, NS_ECONOMY);
00740 }
00741 }
00742
00743
00747 void ResetPriceBaseMultipliers()
00748 {
00749 memset(_price_base_multiplier, 0, sizeof(_price_base_multiplier));
00750 }
00751
00759 void SetPriceBaseMultiplier(Price price, int factor)
00760 {
00761 assert(price < PR_END);
00762 _price_base_multiplier[price] = Clamp(factor, MIN_PRICE_MODIFIER, MAX_PRICE_MODIFIER);
00763 }
00764
00769 void StartupIndustryDailyChanges(bool init_counter)
00770 {
00771 uint map_size = MapLogX() + MapLogY();
00772
00773
00774
00775
00776
00777
00778 _economy.industry_daily_increment = (1 << map_size) / 31;
00779
00780 if (init_counter) {
00781
00782 _economy.industry_daily_change_counter = 0;
00783 }
00784 }
00785
00786 void StartupEconomy()
00787 {
00788 _economy.interest_rate = _settings_game.difficulty.initial_interest;
00789 _economy.infl_amount = _settings_game.difficulty.initial_interest;
00790 _economy.infl_amount_pr = max(0, _settings_game.difficulty.initial_interest - 1);
00791 _economy.fluct = GB(Random(), 0, 8) + 168;
00792
00793
00794 RecomputePrices();
00795
00796 StartupIndustryDailyChanges(true);
00797
00798 }
00799
00803 void InitializeEconomy()
00804 {
00805 _economy.inflation_prices = _economy.inflation_payment = 1 << 16;
00806 }
00807
00816 Money GetPrice(Price index, uint cost_factor, const GRFFile *grf_file, int shift)
00817 {
00818 if (index >= PR_END) return 0;
00819
00820 Money cost = _price[index] * cost_factor;
00821 if (grf_file != NULL) shift += grf_file->price_base_multipliers[index];
00822
00823 if (shift >= 0) {
00824 cost <<= shift;
00825 } else {
00826 cost >>= -shift;
00827 }
00828
00829 return cost;
00830 }
00831
00832 Money GetTransportedGoodsIncome(uint num_pieces, uint dist, byte transit_days, CargoID cargo_type)
00833 {
00834 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00835 if (!cs->IsValid()) {
00836
00837 return 0;
00838 }
00839
00840
00841 if (HasBit(cs->callback_mask, CBM_CARGO_PROFIT_CALC)) {
00842 uint32 var18 = min(dist, 0xFFFF) | (min(num_pieces, 0xFF) << 16) | (transit_days << 24);
00843 uint16 callback = GetCargoCallback(CBID_CARGO_PROFIT_CALC, 0, var18, cs);
00844 if (callback != CALLBACK_FAILED) {
00845 int result = GB(callback, 0, 14);
00846
00847
00848 if (HasBit(callback, 14)) result -= 0x4000;
00849
00850
00851
00852
00853 return result * num_pieces * cs->current_payment / 8192;
00854 }
00855 }
00856
00857 static const int MIN_TIME_FACTOR = 31;
00858 static const int MAX_TIME_FACTOR = 255;
00859
00860 const int days1 = cs->transit_days[0];
00861 const int days2 = cs->transit_days[1];
00862 const int days_over_days1 = max( transit_days - days1, 0);
00863 const int days_over_days2 = max(days_over_days1 - days2, 0);
00864
00865
00866
00867
00868
00869
00870
00871
00872
00873
00874
00875 const int time_factor = max(MAX_TIME_FACTOR - days_over_days1 - days_over_days2, MIN_TIME_FACTOR);
00876
00877 return BigMulS(dist * time_factor * num_pieces, cs->current_payment, 21);
00878 }
00879
00881 static SmallIndustryList _cargo_delivery_destinations;
00882
00892 static uint DeliverGoodsToIndustry(const Station *st, CargoID cargo_type, uint num_pieces, IndustryID source)
00893 {
00894
00895
00896
00897
00898
00899
00900
00901 uint accepted = 0;
00902
00903 for (uint i = 0; i < st->industries_near.Length() && num_pieces != 0; i++) {
00904 Industry *ind = st->industries_near[i];
00905 if (ind->index == source) continue;
00906
00907 const IndustrySpec *indspec = GetIndustrySpec(ind->type);
00908
00909 uint cargo_index;
00910 for (cargo_index = 0; cargo_index < lengthof(ind->accepts_cargo); cargo_index++) {
00911 if (cargo_type == ind->accepts_cargo[cargo_index]) break;
00912 }
00913
00914 if (cargo_index >= lengthof(ind->accepts_cargo)) continue;
00915
00916
00917 if (HasBit(indspec->callback_mask, CBM_IND_REFUSE_CARGO)) {
00918 uint16 res = GetIndustryCallback(CBID_INDUSTRY_REFUSE_CARGO, 0, GetReverseCargoTranslation(cargo_type, indspec->grf_prop.grffile), ind, ind->type, ind->location.tile);
00919 if (res == 0) continue;
00920 }
00921
00922
00923 _cargo_delivery_destinations.Include(ind);
00924
00925 uint amount = min(num_pieces, 0xFFFFU - ind->incoming_cargo_waiting[cargo_index]);
00926 ind->incoming_cargo_waiting[cargo_index] += amount;
00927 num_pieces -= amount;
00928 accepted += amount;
00929 }
00930
00931 return accepted;
00932 }
00933
00947 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)
00948 {
00949 assert(num_pieces > 0);
00950
00951 const Station *st = Station::Get(dest);
00952
00953
00954 uint accepted = DeliverGoodsToIndustry(st, cargo_type, num_pieces, src_type == ST_INDUSTRY ? src : INVALID_INDUSTRY);
00955
00956
00957 if (HasBit(st->always_accepted, cargo_type)) accepted = num_pieces;
00958
00959
00960 company->cur_economy.delivered_cargo += accepted;
00961 if (accepted > 0) SetBit(company->cargo_types, cargo_type);
00962
00963
00964 const CargoSpec *cs = CargoSpec::Get(cargo_type);
00965 if (cs->town_effect == TE_FOOD) st->town->new_act_food += accepted;
00966 if (cs->town_effect == TE_WATER) st->town->new_act_water += accepted;
00967
00968
00969 Money profit = GetTransportedGoodsIncome(accepted, DistanceManhattan(source_tile, st->xy), days_in_transit, cargo_type);
00970
00971
00972 if (CheckSubsidised(cargo_type, company->index, src_type, src, st)) {
00973 switch (_settings_game.difficulty.subsidy_multiplier) {
00974 case 0: profit += profit >> 1; break;
00975 case 1: profit *= 2; break;
00976 case 2: profit *= 3; break;
00977 default: profit *= 4; break;
00978 }
00979 }
00980
00981 return profit;
00982 }
00983
00989 static void TriggerIndustryProduction(Industry *i)
00990 {
00991 const IndustrySpec *indspec = GetIndustrySpec(i->type);
00992 uint16 callback = indspec->callback_mask;
00993
00994 i->was_cargo_delivered = true;
00995 i->last_cargo_accepted_at = _date;
00996
00997 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL) || HasBit(callback, CBM_IND_PRODUCTION_256_TICKS)) {
00998 if (HasBit(callback, CBM_IND_PRODUCTION_CARGO_ARRIVAL)) {
00999 IndustryProductionCallback(i, 0);
01000 } else {
01001 SetWindowDirty(WC_INDUSTRY_VIEW, i->index);
01002 }
01003 } else {
01004 for (uint cargo_index = 0; cargo_index < lengthof(i->incoming_cargo_waiting); cargo_index++) {
01005 uint cargo_waiting = i->incoming_cargo_waiting[cargo_index];
01006 if (cargo_waiting == 0) continue;
01007
01008 i->produced_cargo_waiting[0] = min(i->produced_cargo_waiting[0] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][0] / 256), 0xFFFF);
01009 i->produced_cargo_waiting[1] = min(i->produced_cargo_waiting[1] + (cargo_waiting * indspec->input_cargo_multiplier[cargo_index][1] / 256), 0xFFFF);
01010
01011 i->incoming_cargo_waiting[cargo_index] = 0;
01012 }
01013 }
01014
01015 TriggerIndustry(i, INDUSTRY_TRIGGER_RECEIVED_CARGO);
01016 StartStopIndustryTileAnimation(i, IAT_INDUSTRY_RECEIVED_CARGO);
01017 }
01018
01023 CargoPayment::CargoPayment(Vehicle *front) :
01024 front(front),
01025 current_station(front->last_station_visited)
01026 {
01027 }
01028
01029 CargoPayment::~CargoPayment()
01030 {
01031 if (this->CleaningPool()) return;
01032
01033 this->front->cargo_payment = NULL;
01034
01035 if (this->visual_profit == 0) return;
01036
01037 CompanyID old_company = _current_company;
01038 _current_company = this->front->owner;
01039
01040 SubtractMoneyFromCompany(CommandCost(this->front->GetExpenseType(true), -this->route_profit));
01041 this->front->profit_this_year += this->visual_profit << 8;
01042
01043 if (this->route_profit != 0) {
01044 if (IsLocalCompany() && !PlayVehicleSound(this->front, VSE_LOAD_UNLOAD)) {
01045 SndPlayVehicleFx(SND_14_CASHTILL, this->front);
01046 }
01047
01048 ShowCostOrIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, -this->visual_profit);
01049 } else {
01050 ShowFeederIncomeAnimation(this->front->x_pos, this->front->y_pos, this->front->z_pos, this->visual_profit);
01051 }
01052
01053 _current_company = old_company;
01054 }
01055
01061 void CargoPayment::PayFinalDelivery(const CargoPacket *cp, uint count)
01062 {
01063 if (this->owner == NULL) {
01064 this->owner = Company::Get(this->front->owner);
01065 }
01066
01067
01068 Money profit = DeliverGoods(count, this->ct, this->current_station, cp->SourceStationXY(), cp->DaysInTransit(), this->owner, cp->SourceSubsidyType(), cp->SourceSubsidyID());
01069 this->route_profit += profit;
01070
01071
01072 this->visual_profit += profit - cp->FeederShare();
01073 }
01074
01081 Money CargoPayment::PayTransfer(const CargoPacket *cp, uint count)
01082 {
01083 Money profit = GetTransportedGoodsIncome(
01084 count,
01085
01086 DistanceManhattan(cp->LoadedAtXY(), Station::Get(this->current_station)->xy),
01087 cp->DaysInTransit(),
01088 this->ct);
01089
01090 profit = profit * _settings_game.economy.feeder_payment_share / 100;
01091
01092 this->visual_profit += profit;
01093 return profit;
01094 }
01095
01100 void PrepareUnload(Vehicle *front_v)
01101 {
01102
01103 ClrBit(front_v->vehicle_flags, VF_LOADING_FINISHED);
01104
01105
01106 front_v->load_unload_ticks = 1;
01107
01108 if ((front_v->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01109 for (Vehicle *v = front_v; v != NULL; v = v->Next()) {
01110 if (v->cargo_cap > 0 && !v->cargo.Empty()) {
01111 SetBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01112 }
01113 }
01114 }
01115
01116 assert(front_v->cargo_payment == NULL);
01117 front_v->cargo_payment = new CargoPayment(front_v);
01118 }
01119
01128 static void LoadUnloadVehicle(Vehicle *v, int *cargo_left)
01129 {
01130 assert(v->current_order.IsType(OT_LOADING));
01131
01132 assert(v->load_unload_ticks != 0);
01133
01134
01135 if (--v->load_unload_ticks != 0) {
01136 if (_settings_game.order.improved_load && (v->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01137
01138 for (; v != NULL; v = v->Next()) {
01139 int cap_left = v->cargo_cap - v->cargo.Count();
01140 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01141 }
01142 }
01143 return;
01144 }
01145
01146 StationID last_visited = v->last_station_visited;
01147 Station *st = Station::Get(last_visited);
01148
01149 if (v->type == VEH_TRAIN && (!IsTileType(v->tile, MP_STATION) || GetStationIndex(v->tile) != st->index)) {
01150
01151
01152 SetBit(v->vehicle_flags, VF_LOADING_FINISHED);
01153 v->load_unload_ticks = 1;
01154 return;
01155 }
01156
01157 int unloading_time = 0;
01158 Vehicle *u = v;
01159 bool dirty_vehicle = false;
01160 bool dirty_station = false;
01161
01162 bool completely_emptied = true;
01163 bool anything_unloaded = false;
01164 bool anything_loaded = false;
01165 uint32 cargo_not_full = 0;
01166 uint32 cargo_full = 0;
01167
01168 v->cur_speed = 0;
01169
01170 CargoPayment *payment = v->cargo_payment;
01171
01172 for (; v != NULL; v = v->Next()) {
01173 if (v->cargo_cap == 0) continue;
01174
01175 const Engine *e = Engine::Get(v->engine_type);
01176 byte load_amount = e->info.load_amount;
01177
01178
01179 if (v->type == VEH_AIRCRAFT && !Aircraft::From(v)->IsNormalAircraft()) load_amount = (load_amount + 3) / 4;
01180
01181 if (_settings_game.order.gradual_loading && HasBit(e->info.callback_mask, CBM_VEHICLE_LOAD_AMOUNT)) {
01182 uint16 cb_load_amount = GetVehicleCallback(CBID_VEHICLE_LOAD_AMOUNT, 0, 0, v->engine_type, v);
01183 if (cb_load_amount != CALLBACK_FAILED && GB(cb_load_amount, 0, 8) != 0) load_amount = GB(cb_load_amount, 0, 8);
01184 }
01185
01186 GoodsEntry *ge = &st->goods[v->cargo_type];
01187
01188 if (HasBit(v->vehicle_flags, VF_CARGO_UNLOADING) && (u->current_order.GetUnloadType() & OUFB_NO_UNLOAD) == 0) {
01189 uint cargo_count = v->cargo.Count();
01190 uint amount_unloaded = _settings_game.order.gradual_loading ? min(cargo_count, load_amount) : cargo_count;
01191 bool remaining = false;
01192 bool accepted = false;
01193
01194 payment->SetCargo(v->cargo_type);
01195
01196 if (HasBit(ge->acceptance_pickup, GoodsEntry::ACCEPTANCE) && !(u->current_order.GetUnloadType() & OUFB_TRANSFER)) {
01197
01198 remaining = v->cargo.MoveTo<StationCargoList>(NULL, amount_unloaded, VehicleCargoList::MTA_FINAL_DELIVERY, payment, last_visited);
01199
01200 dirty_vehicle = true;
01201 accepted = true;
01202 }
01203
01204
01205
01206
01207
01208
01209 if ((u->current_order.GetUnloadType() & (OUFB_UNLOAD | OUFB_TRANSFER)) && (!accepted || v->cargo.Count() == cargo_count)) {
01210 remaining = v->cargo.MoveTo(&ge->cargo, amount_unloaded, u->current_order.GetUnloadType() & OUFB_TRANSFER ? VehicleCargoList::MTA_TRANSFER : VehicleCargoList::MTA_UNLOAD, payment);
01211 SetBit(ge->acceptance_pickup, GoodsEntry::PICKUP);
01212
01213 dirty_vehicle = dirty_station = true;
01214 } else if (!accepted) {
01215
01216
01217 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01218
01219
01220
01221
01222
01223 anything_unloaded = true;
01224 continue;
01225 }
01226
01227
01228 st->time_since_unload = 0;
01229
01230 unloading_time += amount_unloaded;
01231
01232 anything_unloaded = true;
01233 if (_settings_game.order.gradual_loading && remaining) {
01234 completely_emptied = false;
01235 } else {
01236
01237 ClrBit(v->vehicle_flags, VF_CARGO_UNLOADING);
01238 }
01239
01240 continue;
01241 }
01242
01243
01244 if (u->current_order.GetLoadType() & OLFB_NO_LOAD) continue;
01245
01246
01247 int t;
01248 switch (u->type) {
01249 case VEH_TRAIN: t = Train::From(u)->tcache.cached_max_speed; break;
01250 case VEH_ROAD: t = u->max_speed / 2; break;
01251 case VEH_SHIP: t = u->max_speed; break;
01252 case VEH_AIRCRAFT: t = u->max_speed * 10 / 129; break;
01253 default: NOT_REACHED();
01254 }
01255
01256
01257 ge->last_speed = min(t, 255);
01258 ge->last_age = _cur_year - u->build_year;
01259 ge->days_since_pickup = 0;
01260
01261
01262
01263 int cap_left = v->cargo_cap - v->cargo.Count();
01264 if (!ge->cargo.Empty() && cap_left > 0) {
01265 uint cap = cap_left;
01266 uint count = ge->cargo.Count();
01267
01268
01269
01270 if (_settings_game.order.improved_load && cargo_left[v->cargo_type] <= 0) {
01271 SetBit(cargo_not_full, v->cargo_type);
01272 continue;
01273 }
01274
01275 if (cap > count) cap = count;
01276 if (_settings_game.order.gradual_loading) cap = min(cap, load_amount);
01277 if (_settings_game.order.improved_load) {
01278
01279 cap = min((uint)cargo_left[v->cargo_type], cap);
01280 cargo_left[v->cargo_type] -= cap;
01281 }
01282
01283 if (v->cargo.Empty()) TriggerVehicle(v, VEHICLE_TRIGGER_NEW_CARGO);
01284
01285
01286
01287
01288
01289
01290
01291
01292 completely_emptied = false;
01293 anything_loaded = true;
01294
01295 ge->cargo.MoveTo(&v->cargo, cap, StationCargoList::MTA_CARGO_LOAD, NULL, st->xy);
01296
01297 st->time_since_load = 0;
01298 st->last_vehicle_type = v->type;
01299
01300 StationAnimationTrigger(st, st->xy, STAT_ANIM_CARGO_TAKEN, v->cargo_type);
01301
01302 unloading_time += cap;
01303
01304 dirty_vehicle = dirty_station = true;
01305 }
01306
01307 if (v->cargo.Count() >= v->cargo_cap) {
01308 SetBit(cargo_full, v->cargo_type);
01309 } else {
01310 SetBit(cargo_not_full, v->cargo_type);
01311 }
01312 }
01313
01314
01315 completely_emptied &= anything_unloaded;
01316
01317
01318
01319
01320
01321 if (_settings_game.order.improved_load && (u->current_order.GetLoadType() & OLFB_FULL_LOAD)) {
01322
01323 for (v = u; v != NULL; v = v->Next()) {
01324 int cap_left = v->cargo_cap - v->cargo.Count();
01325 if (cap_left > 0) cargo_left[v->cargo_type] -= cap_left;
01326 }
01327 }
01328
01329 v = u;
01330
01331 if (!anything_unloaded) delete payment;
01332
01333 if (anything_loaded || anything_unloaded) {
01334 if (_settings_game.order.gradual_loading) {
01335
01336
01337 const uint gradual_loading_wait_time[] = { 40, 20, 10, 20 };
01338
01339 unloading_time = gradual_loading_wait_time[v->type];
01340 }
01341 } else {
01342 bool finished_loading = true;
01343 if (v->current_order.GetLoadType() & OLFB_FULL_LOAD) {
01344 if (v->current_order.GetLoadType() == OLF_FULL_LOAD_ANY) {
01345
01346
01347 if ((v->type == VEH_AIRCRAFT && IsCargoInClass(v->cargo_type, CC_PASSENGERS) && v->cargo_cap > v->cargo.Count()) ||
01348 (cargo_not_full && (cargo_full & ~cargo_not_full) == 0)) {
01349 finished_loading = false;
01350 }
01351 } else if (cargo_not_full != 0) {
01352 finished_loading = false;
01353 }
01354 }
01355 unloading_time = 20;
01356
01357 SB(v->vehicle_flags, VF_LOADING_FINISHED, 1, finished_loading);
01358 }
01359
01360 if (v->type == VEH_TRAIN) {
01361
01362 int overhang = Train::From(v)->tcache.cached_total_length - st->GetPlatformLength(v->tile) * TILE_SIZE;
01363 if (overhang > 0) {
01364 unloading_time <<= 1;
01365 unloading_time += (overhang * unloading_time) / 8;
01366 }
01367 }
01368
01369
01370
01371
01372
01373
01374
01375 if (_game_mode != GM_MENU && (_settings_client.gui.loading_indicators > (uint)(v->owner != _local_company && _local_company != COMPANY_SPECTATOR))) {
01376 StringID percent_up_down = STR_NULL;
01377 int percent = CalcPercentVehicleFilled(v, &percent_up_down);
01378 if (v->fill_percent_te_id == INVALID_TE_ID) {
01379 v->fill_percent_te_id = ShowFillingPercent(v->x_pos, v->y_pos, v->z_pos + 20, percent, percent_up_down);
01380 } else {
01381 UpdateFillingPercent(v->fill_percent_te_id, percent, percent_up_down);
01382 }
01383 }
01384
01385
01386 v->load_unload_ticks = max(1, unloading_time);
01387
01388 if (completely_emptied) {
01389 TriggerVehicle(v, VEHICLE_TRIGGER_EMPTY);
01390 }
01391
01392 if (dirty_vehicle) {
01393 SetWindowDirty(GetWindowClassForVehicleType(v->type), v->owner);
01394 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01395 v->MarkDirty();
01396 }
01397 if (dirty_station) {
01398 st->MarkTilesDirty(true);
01399 SetWindowDirty(WC_STATION_VIEW, last_visited);
01400 }
01401 }
01402
01408 void LoadUnloadStation(Station *st)
01409 {
01410
01411 if (st->loading_vehicles.empty()) return;
01412
01413 int cargo_left[NUM_CARGO];
01414
01415 for (uint i = 0; i < NUM_CARGO; i++) cargo_left[i] = st->goods[i].cargo.Count();
01416
01417 std::list<Vehicle *>::iterator iter;
01418 for (iter = st->loading_vehicles.begin(); iter != st->loading_vehicles.end(); ++iter) {
01419 Vehicle *v = *iter;
01420 if (!(v->vehstatus & (VS_STOPPED | VS_CRASHED))) LoadUnloadVehicle(v, cargo_left);
01421 }
01422
01423
01424 const Industry * const *isend = _cargo_delivery_destinations.End();
01425 for (Industry **iid = _cargo_delivery_destinations.Begin(); iid != isend; iid++) {
01426 TriggerIndustryProduction(*iid);
01427 }
01428 _cargo_delivery_destinations.Clear();
01429 }
01430
01431 void CompaniesMonthlyLoop()
01432 {
01433 CompaniesGenStatistics();
01434 if (_settings_game.economy.inflation) {
01435 AddInflation();
01436 RecomputePrices();
01437 }
01438 CompaniesPayInterest();
01439
01440 _current_company = OWNER_NONE;
01441 HandleEconomyFluctuations();
01442 }
01443
01444 static void DoAcquireCompany(Company *c)
01445 {
01446 Company *owner;
01447 int i;
01448 Money value;
01449 CompanyID ci = c->index;
01450
01451 CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
01452 cni->FillData(c, Company::Get(_current_company));
01453
01454 SetDParam(0, STR_NEWS_COMPANY_MERGER_TITLE);
01455 SetDParam(1, c->bankrupt_value == 0 ? STR_NEWS_MERGER_TAKEOVER_TITLE : STR_NEWS_COMPANY_MERGER_DESCRIPTION);
01456 SetDParamStr(2, cni->company_name);
01457 SetDParamStr(3, cni->other_company_name);
01458 SetDParam(4, c->bankrupt_value);
01459 AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_MERGER, cni);
01460 AI::BroadcastNewEvent(new AIEventCompanyMerger(ci, _current_company));
01461
01462
01463 ChangeNetworkOwner(ci, _current_company);
01464 ChangeOwnershipOfCompanyItems(ci, _current_company);
01465
01466 if (c->bankrupt_value == 0) {
01467 owner = Company::Get(_current_company);
01468 owner->current_loan += c->current_loan;
01469 }
01470
01471 value = CalculateCompanyValue(c) >> 2;
01472 CompanyID old_company = _current_company;
01473 for (i = 0; i != 4; i++) {
01474 if (c->share_owners[i] != COMPANY_SPECTATOR) {
01475 _current_company = c->share_owners[i];
01476 SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, -value));
01477 }
01478 }
01479 _current_company = old_company;
01480
01481 if (c->is_ai) AI::Stop(c->index);
01482
01483 DeleteCompanyWindows(ci);
01484 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01485 InvalidateWindowClassesData(WC_SHIPS_LIST, 0);
01486 InvalidateWindowClassesData(WC_ROADVEH_LIST, 0);
01487 InvalidateWindowClassesData(WC_AIRCRAFT_LIST, 0);
01488
01489 delete c;
01490 }
01491
01492 extern int GetAmountOwnedBy(const Company *c, Owner owner);
01493
01502 CommandCost CmdBuyShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01503 {
01504 CommandCost cost(EXPENSES_OTHER);
01505
01506 Company *c = Company::GetIfValid(p1);
01507
01508
01509
01510 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == (CompanyID)p1) return CMD_ERROR;
01511
01512
01513 if (_cur_year - c->inaugurated_year < 6) return_cmd_error(STR_ERROR_PROTECTED);
01514
01515
01516 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 0) return cost;
01517
01518
01519 if (GetAmountOwnedBy(c, COMPANY_SPECTATOR) == 1 && !c->is_ai) return cost;
01520
01521 cost.AddCost(CalculateCompanyValue(c) >> 2);
01522 if (flags & DC_EXEC) {
01523 OwnerByte *b = c->share_owners;
01524 int i;
01525
01526 while (*b != COMPANY_SPECTATOR) b++;
01527 *b = _current_company;
01528
01529 for (i = 0; c->share_owners[i] == _current_company;) {
01530 if (++i == 4) {
01531 c->bankrupt_value = 0;
01532 DoAcquireCompany(c);
01533 break;
01534 }
01535 }
01536 SetWindowDirty(WC_COMPANY, p1);
01537 }
01538 return cost;
01539 }
01540
01549 CommandCost CmdSellShareInCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01550 {
01551 Company *c = Company::GetIfValid(p1);
01552
01553
01554
01555 if (c == NULL || !_settings_game.economy.allow_shares || _current_company == (CompanyID)p1) return CMD_ERROR;
01556
01557
01558 if (GetAmountOwnedBy(c, _current_company) == 0) return CommandCost();
01559
01560
01561 Money cost = CalculateCompanyValue(c) >> 2;
01562 cost = -(cost - (cost >> 7));
01563
01564 if (flags & DC_EXEC) {
01565 OwnerByte *b = c->share_owners;
01566 while (*b != _current_company) b++;
01567 *b = COMPANY_SPECTATOR;
01568 SetWindowDirty(WC_COMPANY, p1);
01569 }
01570 return CommandCost(EXPENSES_OTHER, cost);
01571 }
01572
01584 CommandCost CmdBuyCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01585 {
01586 Company *c = Company::GetIfValid(p1);
01587 if (c == NULL) return CMD_ERROR;
01588
01589
01590 if (!HasBit(c->bankrupt_asked, _current_company)) return CMD_ERROR;
01591
01592
01593 if (!_networking && _local_company == c->index) return CMD_ERROR;
01594
01595
01596 if ((CompanyID)p1 == _current_company) return CMD_ERROR;
01597
01598
01599 CommandCost cost(EXPENSES_OTHER, c->bankrupt_value);
01600
01601 if (flags & DC_EXEC) {
01602 DoAcquireCompany(c);
01603 }
01604 return cost;
01605 }