company_cmd.cpp

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00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "engine_base.h"
00014 #include "company_base.h"
00015 #include "company_func.h"
00016 #include "company_gui.h"
00017 #include "town.h"
00018 #include "news_func.h"
00019 #include "cmd_helper.h"
00020 #include "command_func.h"
00021 #include "network/network.h"
00022 #include "network/network_func.h"
00023 #include "network/network_base.h"
00024 #include "network/network_admin.h"
00025 #include "ai/ai.hpp"
00026 #include "company_manager_face.h"
00027 #include "window_func.h"
00028 #include "strings_func.h"
00029 #include "date_func.h"
00030 #include "sound_func.h"
00031 #include "rail.h"
00032 #include "core/pool_func.hpp"
00033 #include "settings_func.h"
00034 #include "vehicle_base.h"
00035 #include "vehicle_func.h"
00036 #include "sprite.h"
00037 #include "smallmap_gui.h"
00038 
00039 #include "table/strings.h"
00040 
00041 CompanyByte _local_company;   
00042 CompanyByte _current_company; 
00043 Colours _company_colours[MAX_COMPANIES];  
00044 CompanyManagerFace _company_manager_face; 
00045 uint _next_competitor_start;              
00046 uint _cur_company_tick_index;             
00047 
00048 CompanyPool _company_pool("Company"); 
00049 INSTANTIATE_POOL_METHODS(Company)
00050 
00051 
00056 Company::Company(uint16 name_1, bool is_ai)
00057 {
00058   this->name_1 = name_1;
00059   this->location_of_HQ = INVALID_TILE;
00060   this->is_ai = is_ai;
00061   this->terraform_limit = _settings_game.construction.terraform_frame_burst << 16;
00062   this->clear_limit     = _settings_game.construction.clear_frame_burst << 16;
00063 
00064   for (uint j = 0; j < 4; j++) this->share_owners[j] = COMPANY_SPECTATOR;
00065   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, INVALID_COMPANY);
00066 }
00067 
00069 Company::~Company()
00070 {
00071   free(this->num_engines);
00072 
00073   if (CleaningPool()) return;
00074 
00075   DeleteCompanyWindows(this->index);
00076 }
00077 
00082 void Company::PostDestructor(size_t index)
00083 {
00084   InvalidateWindowData(WC_GRAPH_LEGEND, 0, (int)index);
00085   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, (int)index);
00086   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00087   InvalidateWindowData(WC_LINKGRAPH_LEGEND, 0);
00088   /* If the currently shown error message has this company in it, then close it. */
00089   InvalidateWindowData(WC_ERRMSG, 0);
00090 }
00091 
00098 void SetLocalCompany(CompanyID new_company)
00099 {
00100   /* company could also be COMPANY_SPECTATOR or OWNER_NONE */
00101   assert(Company::IsValidID(new_company) || new_company == COMPANY_SPECTATOR || new_company == OWNER_NONE);
00102 
00103 #ifdef ENABLE_NETWORK
00104   /* Delete the chat window, if you were team chatting. */
00105   InvalidateWindowData(WC_SEND_NETWORK_MSG, DESTTYPE_TEAM, _local_company);
00106 #endif
00107 
00108   assert(IsLocalCompany());
00109 
00110   _current_company = _local_company = new_company;
00111 
00112   /* Delete any construction windows... */
00113   DeleteConstructionWindows();
00114 
00115   /* ... and redraw the whole screen. */
00116   MarkWholeScreenDirty();
00117 }
00118 
00124 TextColour GetDrawStringCompanyColour(CompanyID company)
00125 {
00126   if (!Company::IsValidID(company)) return (TextColour)_colour_gradient[COLOUR_WHITE][4] | TC_IS_PALETTE_COLOUR;
00127   return (TextColour)_colour_gradient[_company_colours[company]][4] | TC_IS_PALETTE_COLOUR;
00128 }
00129 
00136 void DrawCompanyIcon(CompanyID c, int x, int y)
00137 {
00138   DrawSprite(SPR_COMPANY_ICON, COMPANY_SPRITE_COLOUR(c), x, y);
00139 }
00140 
00147 static bool IsValidCompanyManagerFace(CompanyManagerFace cmf)
00148 {
00149   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_GEN_ETHN, GE_WM)) return false;
00150 
00151   GenderEthnicity ge   = (GenderEthnicity)GetCompanyManagerFaceBits(cmf, CMFV_GEN_ETHN, GE_WM);
00152   bool has_moustache   = !HasBit(ge, GENDER_FEMALE) && GetCompanyManagerFaceBits(cmf, CMFV_HAS_MOUSTACHE,   ge) != 0;
00153   bool has_tie_earring = !HasBit(ge, GENDER_FEMALE) || GetCompanyManagerFaceBits(cmf, CMFV_HAS_TIE_EARRING, ge) != 0;
00154   bool has_glasses     = GetCompanyManagerFaceBits(cmf, CMFV_HAS_GLASSES, ge) != 0;
00155 
00156   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_EYE_COLOUR, ge)) return false;
00157   for (CompanyManagerFaceVariable cmfv = CMFV_CHEEKS; cmfv < CMFV_END; cmfv++) {
00158     switch (cmfv) {
00159       case CMFV_MOUSTACHE:   if (!has_moustache)   continue; break;
00160       case CMFV_LIPS:        // FALL THROUGH
00161       case CMFV_NOSE:        if (has_moustache)    continue; break;
00162       case CMFV_TIE_EARRING: if (!has_tie_earring) continue; break;
00163       case CMFV_GLASSES:     if (!has_glasses)     continue; break;
00164       default: break;
00165     }
00166     if (!AreCompanyManagerFaceBitsValid(cmf, cmfv, ge)) return false;
00167   }
00168 
00169   return true;
00170 }
00171 
00176 void InvalidateCompanyWindows(const Company *company)
00177 {
00178   CompanyID cid = company->index;
00179 
00180   if (cid == _local_company) SetWindowDirty(WC_STATUS_BAR, 0);
00181   SetWindowDirty(WC_FINANCES, cid);
00182 }
00183 
00189 bool CheckCompanyHasMoney(CommandCost &cost)
00190 {
00191   if (cost.GetCost() > 0) {
00192     const Company *c = Company::GetIfValid(_current_company);
00193     if (c != NULL && cost.GetCost() > c->money) {
00194       SetDParam(0, cost.GetCost());
00195       cost.MakeError(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY);
00196       return false;
00197     }
00198   }
00199   return true;
00200 }
00201 
00207 static void SubtractMoneyFromAnyCompany(Company *c, CommandCost cost)
00208 {
00209   if (cost.GetCost() == 0) return;
00210   assert(cost.GetExpensesType() != INVALID_EXPENSES);
00211 
00212   c->money -= cost.GetCost();
00213   c->yearly_expenses[0][cost.GetExpensesType()] += cost.GetCost();
00214 
00215   if (HasBit(1 << EXPENSES_TRAIN_INC    |
00216              1 << EXPENSES_ROADVEH_INC  |
00217              1 << EXPENSES_AIRCRAFT_INC |
00218              1 << EXPENSES_SHIP_INC, cost.GetExpensesType())) {
00219     c->cur_economy.income -= cost.GetCost();
00220   } else if (HasBit(1 << EXPENSES_TRAIN_RUN    |
00221                     1 << EXPENSES_ROADVEH_RUN  |
00222                     1 << EXPENSES_AIRCRAFT_RUN |
00223                     1 << EXPENSES_SHIP_RUN     |
00224                     1 << EXPENSES_PROPERTY     |
00225                     1 << EXPENSES_LOAN_INT, cost.GetExpensesType())) {
00226     c->cur_economy.expenses -= cost.GetCost();
00227   }
00228 
00229   InvalidateCompanyWindows(c);
00230 }
00231 
00236 void SubtractMoneyFromCompany(CommandCost cost)
00237 {
00238   Company *c = Company::GetIfValid(_current_company);
00239   if (c != NULL) SubtractMoneyFromAnyCompany(c, cost);
00240 }
00241 
00247 void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cst)
00248 {
00249   Company *c = Company::Get(company);
00250   byte m = c->money_fraction;
00251   Money cost = cst.GetCost();
00252 
00253   c->money_fraction = m - (byte)cost;
00254   cost >>= 8;
00255   if (c->money_fraction > m) cost++;
00256   if (cost != 0) SubtractMoneyFromAnyCompany(c, CommandCost(cst.GetExpensesType(), cost));
00257 }
00258 
00260 void UpdateLandscapingLimits()
00261 {
00262   Company *c;
00263   FOR_ALL_COMPANIES(c) {
00264     c->terraform_limit = min(c->terraform_limit + _settings_game.construction.terraform_per_64k_frames, (uint32)_settings_game.construction.terraform_frame_burst << 16);
00265     c->clear_limit     = min(c->clear_limit     + _settings_game.construction.clear_per_64k_frames,     (uint32)_settings_game.construction.clear_frame_burst << 16);
00266   }
00267 }
00268 
00275 void GetNameOfOwner(Owner owner, TileIndex tile)
00276 {
00277   SetDParam(2, owner);
00278 
00279   if (owner != OWNER_TOWN) {
00280     if (!Company::IsValidID(owner)) {
00281       SetDParam(0, STR_COMPANY_SOMEONE);
00282     } else {
00283       SetDParam(0, STR_COMPANY_NAME);
00284       SetDParam(1, owner);
00285     }
00286   } else {
00287     assert(tile != 0);
00288     const Town *t = ClosestTownFromTile(tile, UINT_MAX);
00289 
00290     SetDParam(0, STR_TOWN_NAME);
00291     SetDParam(1, t->index);
00292   }
00293 }
00294 
00295 
00304 CommandCost CheckOwnership(Owner owner, TileIndex tile)
00305 {
00306   assert(owner < OWNER_END);
00307   assert(owner != OWNER_TOWN || tile != 0);
00308 
00309   if (owner == _current_company) return CommandCost();
00310 
00311   GetNameOfOwner(owner, tile);
00312   return_cmd_error(STR_ERROR_OWNED_BY);
00313 }
00314 
00322 CommandCost CheckTileOwnership(TileIndex tile)
00323 {
00324   Owner owner = GetTileOwner(tile);
00325 
00326   assert(owner < OWNER_END);
00327 
00328   if (owner == _current_company) return CommandCost();
00329 
00330   /* no need to get the name of the owner unless we're the local company (saves some time) */
00331   if (IsLocalCompany()) GetNameOfOwner(owner, tile);
00332   return_cmd_error(STR_ERROR_OWNED_BY);
00333 }
00334 
00339 static void GenerateCompanyName(Company *c)
00340 {
00341   /* Reserve space for extra unicode character. We need to do this to be able
00342    * to detect too long company name. */
00343   char buffer[(MAX_LENGTH_COMPANY_NAME_CHARS + 1) * MAX_CHAR_LENGTH];
00344 
00345   if (c->name_1 != STR_SV_UNNAMED) return;
00346   if (c->last_build_coordinate == 0) return;
00347 
00348   Town *t = ClosestTownFromTile(c->last_build_coordinate, UINT_MAX);
00349 
00350   StringID str;
00351   uint32 strp;
00352   if (t->name == NULL && IsInsideMM(t->townnametype, SPECSTR_TOWNNAME_START, SPECSTR_TOWNNAME_LAST + 1)) {
00353     str = t->townnametype - SPECSTR_TOWNNAME_START + SPECSTR_PLAYERNAME_START;
00354     strp = t->townnameparts;
00355 
00356 verify_name:;
00357     /* No companies must have this name already */
00358     Company *cc;
00359     FOR_ALL_COMPANIES(cc) {
00360       if (cc->name_1 == str && cc->name_2 == strp) goto bad_town_name;
00361     }
00362 
00363     GetString(buffer, str, lastof(buffer));
00364     if (Utf8StringLength(buffer) >= MAX_LENGTH_COMPANY_NAME_CHARS) goto bad_town_name;
00365 
00366 set_name:;
00367     c->name_1 = str;
00368     c->name_2 = strp;
00369 
00370     MarkWholeScreenDirty();
00371 
00372     if (c->is_ai) {
00373       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00374       cni->FillData(c);
00375       SetDParam(0, STR_NEWS_COMPANY_LAUNCH_TITLE);
00376       SetDParam(1, STR_NEWS_COMPANY_LAUNCH_DESCRIPTION);
00377       SetDParamStr(2, cni->company_name);
00378       SetDParam(3, t->index);
00379       AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_NEW, NR_TILE, c->last_build_coordinate, NR_NONE, UINT32_MAX, cni);
00380     }
00381     AI::BroadcastNewEvent(new AIEventCompanyNew(c->index), c->index);
00382     return;
00383   }
00384 bad_town_name:;
00385 
00386   if (c->president_name_1 == SPECSTR_PRESIDENT_NAME) {
00387     str = SPECSTR_ANDCO_NAME;
00388     strp = c->president_name_2;
00389     goto set_name;
00390   } else {
00391     str = SPECSTR_ANDCO_NAME;
00392     strp = Random();
00393     goto verify_name;
00394   }
00395 }
00396 
00398 static const byte _colour_sort[COLOUR_END] = {2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 1, 1, 1};
00400 static const Colours _similar_colour[COLOUR_END][2] = {
00401   { COLOUR_BLUE,       COLOUR_LIGHT_BLUE }, // COLOUR_DARK_BLUE
00402   { COLOUR_GREEN,      COLOUR_DARK_GREEN }, // COLOUR_PALE_GREEN
00403   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_PINK
00404   { COLOUR_ORANGE,     INVALID_COLOUR    }, // COLOUR_YELLOW
00405   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_RED
00406   { COLOUR_DARK_BLUE,  COLOUR_BLUE       }, // COLOUR_LIGHT_BLUE
00407   { COLOUR_PALE_GREEN, COLOUR_DARK_GREEN }, // COLOUR_GREEN
00408   { COLOUR_PALE_GREEN, COLOUR_GREEN      }, // COLOUR_DARK_GREEN
00409   { COLOUR_DARK_BLUE,  COLOUR_LIGHT_BLUE }, // COLOUR_BLUE
00410   { COLOUR_BROWN,      COLOUR_ORANGE     }, // COLOUR_CREAM
00411   { COLOUR_PURPLE,     INVALID_COLOUR    }, // COLOUR_MAUVE
00412   { COLOUR_MAUVE,      INVALID_COLOUR    }, // COLOUR_PURPLE
00413   { COLOUR_YELLOW,     COLOUR_CREAM      }, // COLOUR_ORANGE
00414   { COLOUR_CREAM,      INVALID_COLOUR    }, // COLOUR_BROWN
00415   { COLOUR_WHITE,      INVALID_COLOUR    }, // COLOUR_GREY
00416   { COLOUR_GREY,       INVALID_COLOUR    }, // COLOUR_WHITE
00417 };
00418 
00423 static Colours GenerateCompanyColour()
00424 {
00425   Colours colours[COLOUR_END];
00426 
00427   /* Initialize array */
00428   for (uint i = 0; i < COLOUR_END; i++) colours[i] = (Colours)i;
00429 
00430   /* And randomize it */
00431   for (uint i = 0; i < 100; i++) {
00432     uint r = Random();
00433     Swap(colours[GB(r, 0, 4)], colours[GB(r, 4, 4)]);
00434   }
00435 
00436   /* Bubble sort it according to the values in table 1 */
00437   for (uint i = 0; i < COLOUR_END; i++) {
00438     for (uint j = 1; j < COLOUR_END; j++) {
00439       if (_colour_sort[colours[j - 1]] < _colour_sort[colours[j]]) {
00440         Swap(colours[j - 1], colours[j]);
00441       }
00442     }
00443   }
00444 
00445   /* Move the colours that look similar to each company's colour to the side */
00446   Company *c;
00447   FOR_ALL_COMPANIES(c) {
00448     Colours pcolour = (Colours)c->colour;
00449 
00450     for (uint i = 0; i < COLOUR_END; i++) {
00451       if (colours[i] == pcolour) {
00452         colours[i] = INVALID_COLOUR;
00453         break;
00454       }
00455     }
00456 
00457     for (uint j = 0; j < 2; j++) {
00458       Colours similar = _similar_colour[pcolour][j];
00459       if (similar == INVALID_COLOUR) break;
00460 
00461       for (uint i = 1; i < COLOUR_END; i++) {
00462         if (colours[i - 1] == similar) Swap(colours[i - 1], colours[i]);
00463       }
00464     }
00465   }
00466 
00467   /* Return the first available colour */
00468   for (uint i = 0; i < COLOUR_END; i++) {
00469     if (colours[i] != INVALID_COLOUR) return colours[i];
00470   }
00471 
00472   NOT_REACHED();
00473 }
00474 
00479 static void GeneratePresidentName(Company *c)
00480 {
00481   for (;;) {
00482 restart:;
00483     c->president_name_2 = Random();
00484     c->president_name_1 = SPECSTR_PRESIDENT_NAME;
00485 
00486     /* Reserve space for extra unicode character. We need to do this to be able
00487      * to detect too long president name. */
00488     char buffer[(MAX_LENGTH_PRESIDENT_NAME_CHARS + 1) * MAX_CHAR_LENGTH];
00489     SetDParam(0, c->index);
00490     GetString(buffer, STR_PRESIDENT_NAME, lastof(buffer));
00491     if (Utf8StringLength(buffer) >= MAX_LENGTH_PRESIDENT_NAME_CHARS) continue;
00492 
00493     Company *cc;
00494     FOR_ALL_COMPANIES(cc) {
00495       if (c != cc) {
00496         /* Reserve extra space so even overlength president names can be compared. */
00497         char buffer2[(MAX_LENGTH_PRESIDENT_NAME_CHARS + 1) * MAX_CHAR_LENGTH];
00498         SetDParam(0, cc->index);
00499         GetString(buffer2, STR_PRESIDENT_NAME, lastof(buffer2));
00500         if (strcmp(buffer2, buffer) == 0) goto restart;
00501       }
00502     }
00503     return;
00504   }
00505 }
00506 
00512 void ResetCompanyLivery(Company *c)
00513 {
00514   for (LiveryScheme scheme = LS_BEGIN; scheme < LS_END; scheme++) {
00515     c->livery[scheme].in_use  = false;
00516     c->livery[scheme].colour1 = c->colour;
00517     c->livery[scheme].colour2 = c->colour;
00518   }
00519 }
00520 
00528 Company *DoStartupNewCompany(bool is_ai, CompanyID company = INVALID_COMPANY)
00529 {
00530   if (!Company::CanAllocateItem()) return NULL;
00531 
00532   /* we have to generate colour before this company is valid */
00533   Colours colour = GenerateCompanyColour();
00534 
00535   Company *c;
00536   if (company == INVALID_COMPANY) {
00537     c = new Company(STR_SV_UNNAMED, is_ai);
00538   } else {
00539     if (Company::IsValidID(company)) return NULL;
00540     c = new (company) Company(STR_SV_UNNAMED, is_ai);
00541   }
00542 
00543   c->colour = colour;
00544 
00545   ResetCompanyLivery(c);
00546   _company_colours[c->index] = (Colours)c->colour;
00547 
00548   c->money = c->current_loan = (100000ll * _economy.inflation_prices >> 16) / 50000 * 50000;
00549 
00550   c->share_owners[0] = c->share_owners[1] = c->share_owners[2] = c->share_owners[3] = INVALID_OWNER;
00551 
00552   c->avail_railtypes = GetCompanyRailtypes(c->index);
00553   c->avail_roadtypes = GetCompanyRoadtypes(c->index);
00554   c->inaugurated_year = _cur_year;
00555   RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
00556 
00557   SetDefaultCompanySettings(c->index);
00558 
00559   GeneratePresidentName(c);
00560 
00561   SetWindowDirty(WC_GRAPH_LEGEND, 0);
00562   SetWindowClassesDirty(WC_CLIENT_LIST_POPUP);
00563   SetWindowDirty(WC_CLIENT_LIST, 0);
00564   InvalidateWindowData(WC_LINKGRAPH_LEGEND, 0);
00565   BuildOwnerLegend();
00566   InvalidateWindowData(WC_SMALLMAP, 0, 1);
00567 
00568   if (is_ai && (!_networking || _network_server)) AI::StartNew(c->index);
00569 
00570   c->num_engines = CallocT<uint16>(Engine::GetPoolSize());
00571 
00572   return c;
00573 }
00574 
00576 void StartupCompanies()
00577 {
00578   _next_competitor_start = 0;
00579 }
00580 
00581 #ifdef ENABLE_AI
00582 
00583 static void MaybeStartNewCompany()
00584 {
00585 #ifdef ENABLE_NETWORK
00586   if (_networking && Company::GetNumItems() >= _settings_client.network.max_companies) return;
00587 #endif /* ENABLE_NETWORK */
00588 
00589   Company *c;
00590 
00591   /* count number of competitors */
00592   uint n = 0;
00593   FOR_ALL_COMPANIES(c) {
00594     if (c->is_ai) n++;
00595   }
00596 
00597   if (n < (uint)_settings_game.difficulty.max_no_competitors) {
00598     /* Send a command to all clients to start up a new AI.
00599      * Works fine for Multiplayer and Singleplayer */
00600     DoCommandP(0, 1 | INVALID_COMPANY << 16, 0, CMD_COMPANY_CTRL);
00601   }
00602 }
00603 #endif /* ENABLE_AI */
00604 
00606 void InitializeCompanies()
00607 {
00608   _cur_company_tick_index = 0;
00609 }
00610 
00617 bool MayCompanyTakeOver(CompanyID cbig, CompanyID csmall)
00618 {
00619   uint big_counts[4], small_counts[4];
00620   CountCompanyVehicles(cbig,   big_counts);
00621   CountCompanyVehicles(csmall, small_counts);
00622 
00623   /* Do the combined vehicle counts stay within the limits? */
00624   return big_counts[VEH_TRAIN]     + small_counts[VEH_TRAIN]    <= _settings_game.vehicle.max_trains &&
00625     big_counts[VEH_ROAD]     + small_counts[VEH_ROAD]     <= _settings_game.vehicle.max_roadveh &&
00626     big_counts[VEH_SHIP]     + small_counts[VEH_SHIP]     <= _settings_game.vehicle.max_ships &&
00627     big_counts[VEH_AIRCRAFT] + small_counts[VEH_AIRCRAFT] <= _settings_game.vehicle.max_aircraft;
00628 }
00629 
00639 static void HandleBankruptcyTakeover(Company *c)
00640 {
00641   /* Amount of time out for each company to take over a company;
00642    * Timeout is a quarter (3 months of 30 days) divided over the
00643    * number of companies. The minimum number of days in a quarter
00644    * is 90: 31 in January, 28 in February and 31 in March.
00645    * Note that the company going bankrupt can't buy itself. */
00646   static const int TAKE_OVER_TIMEOUT = 3 * 30 * DAY_TICKS / (MAX_COMPANIES - 1);
00647 
00648   assert(c->bankrupt_asked != 0);
00649 
00650   /* We're currently asking some company to buy 'us' */
00651   if (c->bankrupt_timeout != 0) {
00652     c->bankrupt_timeout -= MAX_COMPANIES;
00653     if (c->bankrupt_timeout > 0) return;
00654     c->bankrupt_timeout = 0;
00655 
00656     return;
00657   }
00658 
00659   /* Did we ask everyone for bankruptcy? If so, bail out. */
00660   if (c->bankrupt_asked == MAX_UVALUE(CompanyMask)) return;
00661 
00662   Company *c2, *best = NULL;
00663   int32 best_performance = -1;
00664 
00665   /* Ask the company with the highest performance history first */
00666   FOR_ALL_COMPANIES(c2) {
00667     if (c2->bankrupt_asked == 0 && // Don't ask companies going bankrupt themselves
00668         !HasBit(c->bankrupt_asked, c2->index) &&
00669         best_performance < c2->old_economy[1].performance_history &&
00670         MayCompanyTakeOver(c2->index, c->index)) {
00671       best_performance = c2->old_economy[1].performance_history;
00672       best = c2;
00673     }
00674   }
00675 
00676   /* Asked all companies? */
00677   if (best_performance == -1) {
00678     c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00679     return;
00680   }
00681 
00682   SetBit(c->bankrupt_asked, best->index);
00683 
00684   c->bankrupt_timeout = TAKE_OVER_TIMEOUT;
00685   if (best->is_ai) {
00686     AI::NewEvent(best->index, new AIEventCompanyAskMerger(c->index, ClampToI32(c->bankrupt_value)));
00687   } else if (IsInteractiveCompany(best->index)) {
00688     ShowBuyCompanyDialog(c->index);
00689   }
00690 }
00691 
00693 void OnTick_Companies()
00694 {
00695   if (_game_mode == GM_EDITOR) return;
00696 
00697   Company *c = Company::GetIfValid(_cur_company_tick_index);
00698   if (c != NULL) {
00699     if (c->name_1 != 0) GenerateCompanyName(c);
00700     if (c->bankrupt_asked != 0) HandleBankruptcyTakeover(c);
00701   }
00702 
00703 #ifdef ENABLE_AI
00704   if (_next_competitor_start == 0) {
00705     _next_competitor_start = AI::GetStartNextTime() * DAY_TICKS;
00706   }
00707 
00708   if (AI::CanStartNew() && _game_mode != GM_MENU && --_next_competitor_start == 0) {
00709     MaybeStartNewCompany();
00710   }
00711 #endif /* ENABLE_AI */
00712 
00713   _cur_company_tick_index = (_cur_company_tick_index + 1) % MAX_COMPANIES;
00714 }
00715 
00720 void CompaniesYearlyLoop()
00721 {
00722   Company *c;
00723 
00724   /* Copy statistics */
00725   FOR_ALL_COMPANIES(c) {
00726     memmove(&c->yearly_expenses[1], &c->yearly_expenses[0], sizeof(c->yearly_expenses) - sizeof(c->yearly_expenses[0]));
00727     memset(&c->yearly_expenses[0], 0, sizeof(c->yearly_expenses[0]));
00728     SetWindowDirty(WC_FINANCES, c->index);
00729   }
00730 
00731   if (_settings_client.gui.show_finances && _local_company != COMPANY_SPECTATOR) {
00732     ShowCompanyFinances(_local_company);
00733     c = Company::Get(_local_company);
00734     if (c->num_valid_stat_ent > 5 && c->old_economy[0].performance_history < c->old_economy[4].performance_history) {
00735       SndPlayFx(SND_01_BAD_YEAR);
00736     } else {
00737       SndPlayFx(SND_00_GOOD_YEAR);
00738     }
00739   }
00740 }
00741 
00747 void CompanyNewsInformation::FillData(const Company *c, const Company *other)
00748 {
00749   SetDParam(0, c->index);
00750   GetString(this->company_name, STR_COMPANY_NAME, lastof(this->company_name));
00751 
00752   if (other == NULL) {
00753     *this->other_company_name = '\0';
00754   } else {
00755     SetDParam(0, other->index);
00756     GetString(this->other_company_name, STR_COMPANY_NAME, lastof(this->other_company_name));
00757     c = other;
00758   }
00759 
00760   SetDParam(0, c->index);
00761   GetString(this->president_name, STR_PRESIDENT_NAME_MANAGER, lastof(this->president_name));
00762 
00763   this->colour = c->colour;
00764   this->face = c->face;
00765 
00766 }
00767 
00772 void CompanyAdminUpdate(const Company *company)
00773 {
00774 #ifdef ENABLE_NETWORK
00775   if (_network_server) NetworkAdminCompanyUpdate(company);
00776 #endif /* ENABLE_NETWORK */
00777 }
00778 
00783 void CompanyAdminBankrupt(CompanyID company_id)
00784 {
00785 #ifdef ENABLE_NETWORK
00786   if (_network_server) NetworkAdminCompanyRemove(company_id, ADMIN_CRR_BANKRUPT);
00787 #endif /* ENABLE_NETWORK */
00788 }
00789 
00804 CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00805 {
00806   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00807   CompanyID company_id = (CompanyID)GB(p1, 16, 8);
00808 #ifdef ENABLE_NETWORK
00809   ClientID client_id = (ClientID)p2;
00810 #endif /* ENABLE_NETWORK */
00811 
00812   switch (GB(p1, 0, 16)) {
00813     case 0: { // Create a new company
00814       /* This command is only executed in a multiplayer game */
00815       if (!_networking) return CMD_ERROR;
00816 
00817 #ifdef ENABLE_NETWORK
00818       /* Has the network client a correct ClientIndex? */
00819       if (!(flags & DC_EXEC)) return CommandCost();
00820       NetworkClientInfo *ci = NetworkClientInfo::GetByClientID(client_id);
00821       if (ci == NULL) return CommandCost();
00822 
00823       /* Delete multiplayer progress bar */
00824       DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00825 
00826       Company *c = DoStartupNewCompany(false);
00827 
00828       /* A new company could not be created, revert to being a spectator */
00829       if (c == NULL) {
00830         if (_network_server) {
00831           ci->client_playas = COMPANY_SPECTATOR;
00832           NetworkUpdateClientInfo(ci->client_id);
00833         }
00834         break;
00835       }
00836 
00837       /* This is the client (or non-dedicated server) who wants a new company */
00838       if (client_id == _network_own_client_id) {
00839         assert(_local_company == COMPANY_SPECTATOR);
00840         SetLocalCompany(c->index);
00841         if (!StrEmpty(_settings_client.network.default_company_pass)) {
00842           NetworkChangeCompanyPassword(_local_company, _settings_client.network.default_company_pass);
00843         }
00844 
00845         /* Now that we have a new company, broadcast our company settings to
00846          * all clients so everything is in sync */
00847         SyncCompanySettings();
00848 
00849         MarkWholeScreenDirty();
00850       }
00851 
00852       if (_network_server) {
00853         CompanyID old_playas = ci->client_playas;
00854         ci->client_playas = c->index;
00855         NetworkUpdateClientInfo(ci->client_id);
00856 
00857         if (Company::IsValidID(ci->client_playas)) {
00858           _network_company_states[c->index].months_empty = 0;
00859           _network_company_states[c->index].password[0] = '\0';
00860           NetworkServerUpdateCompanyPassworded(ci->client_playas, false);
00861 
00862           /* XXX - When a client joins, we automatically set its name to the
00863            * client's name (for some reason). As it stands now only the server
00864            * knows the client's name, so it needs to send out a "broadcast" to
00865            * do this. To achieve this we send a network command. However, it
00866            * uses _local_company to execute the command as.  To prevent abuse
00867            * (eg. only yourself can change your name/company), we 'cheat' by
00868            * impersonation _local_company as the server. Not the best solution;
00869            * but it works.
00870            * TODO: Perhaps this could be improved by when the client is ready
00871            * with joining to let it send itself the command, and not the server?
00872            * For example in network_client.c:534? */
00873           NetworkSendCommand(0, 0, 0, CMD_RENAME_PRESIDENT, NULL, ci->client_name, ci->client_playas);
00874         }
00875 
00876         /* Announce new company on network, if the client was a SPECTATOR before */
00877         if (old_playas == COMPANY_SPECTATOR) {
00878           NetworkAdminCompanyInfo(c, true);
00879           NetworkServerSendChat(NETWORK_ACTION_COMPANY_NEW, DESTTYPE_BROADCAST, 0, "", ci->client_id, ci->client_playas + 1);
00880         }
00881       }
00882 #endif /* ENABLE_NETWORK */
00883       break;
00884     }
00885 
00886     case 1: // Make a new AI company
00887       if (!(flags & DC_EXEC)) return CommandCost();
00888 
00889       if (company_id != INVALID_COMPANY && (company_id >= MAX_COMPANIES || Company::IsValidID(company_id))) return CMD_ERROR;
00890       DoStartupNewCompany(true, company_id);
00891       break;
00892 
00893     case 2: { // Delete a company
00894       Company *c = Company::GetIfValid(company_id);
00895       if (c == NULL) return CMD_ERROR;
00896 
00897       if (!(flags & DC_EXEC)) return CommandCost();
00898 
00899       /* Delete any open window of the company */
00900       DeleteCompanyWindows(c->index);
00901       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00902       cni->FillData(c);
00903 
00904       /* Show the bankrupt news */
00905       SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
00906       SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
00907       SetDParamStr(2, cni->company_name);
00908       AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
00909 
00910       /* Remove the company */
00911       ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00912       if (c->is_ai) AI::Stop(c->index);
00913 
00914       CompanyID c_index = c->index;
00915       delete c;
00916       AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00917       CompanyAdminBankrupt(c_index);
00918       break;
00919     }
00920 
00921     default: return CMD_ERROR;
00922   }
00923 
00924   InvalidateWindowClassesData(WC_GAME_OPTIONS);
00925   InvalidateWindowClassesData(WC_AI_SETTINGS);
00926   InvalidateWindowClassesData(WC_AI_LIST);
00927 
00928   return CommandCost();
00929 }
00930 
00940 CommandCost CmdSetCompanyManagerFace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00941 {
00942   CompanyManagerFace cmf = (CompanyManagerFace)p2;
00943 
00944   if (!IsValidCompanyManagerFace(cmf)) return CMD_ERROR;
00945 
00946   if (flags & DC_EXEC) {
00947     Company::Get(_current_company)->face = cmf;
00948     MarkWholeScreenDirty();
00949   }
00950   return CommandCost();
00951 }
00952 
00964 CommandCost CmdSetCompanyColour(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00965 {
00966   Colours colour = Extract<Colours, 0, 4>(p2);
00967   LiveryScheme scheme = Extract<LiveryScheme, 0, 8>(p1);
00968   byte state = GB(p1, 8, 2);
00969 
00970   if (scheme >= LS_END || state >= 3 || colour == INVALID_COLOUR) return CMD_ERROR;
00971 
00972   Company *c = Company::Get(_current_company);
00973 
00974   /* Ensure no two companies have the same primary colour */
00975   if (scheme == LS_DEFAULT && state == 0) {
00976     const Company *cc;
00977     FOR_ALL_COMPANIES(cc) {
00978       if (cc != c && cc->colour == colour) return CMD_ERROR;
00979     }
00980   }
00981 
00982   if (flags & DC_EXEC) {
00983     switch (state) {
00984       case 0:
00985         c->livery[scheme].colour1 = colour;
00986 
00987         /* If setting the first colour of the default scheme, adjust the
00988          * original and cached company colours too. */
00989         if (scheme == LS_DEFAULT) {
00990           _company_colours[_current_company] = colour;
00991           c->colour = colour;
00992           CompanyAdminUpdate(c);
00993         }
00994         break;
00995 
00996       case 1:
00997         c->livery[scheme].colour2 = colour;
00998         break;
00999 
01000       case 2:
01001         c->livery[scheme].in_use = colour != 0;
01002 
01003         /* Now handle setting the default scheme's in_use flag.
01004          * This is different to the other schemes, as it signifies if any
01005          * scheme is active at all. If this flag is not set, then no
01006          * processing of vehicle types occurs at all, and only the default
01007          * colours will be used. */
01008 
01009         /* If enabling a scheme, set the default scheme to be in use too */
01010         if (colour != 0) {
01011           c->livery[LS_DEFAULT].in_use = true;
01012           break;
01013         }
01014 
01015         /* Else loop through all schemes to see if any are left enabled.
01016          * If not, disable the default scheme too. */
01017         c->livery[LS_DEFAULT].in_use = false;
01018         for (scheme = LS_DEFAULT; scheme < LS_END; scheme++) {
01019           if (c->livery[scheme].in_use) {
01020             c->livery[LS_DEFAULT].in_use = true;
01021             break;
01022           }
01023         }
01024         break;
01025 
01026       default:
01027         break;
01028     }
01029     ResetVehicleColourMap();
01030     MarkWholeScreenDirty();
01031 
01032     /* All graph related to companies use the company colour. */
01033     InvalidateWindowData(WC_INCOME_GRAPH, 0);
01034     InvalidateWindowData(WC_OPERATING_PROFIT, 0);
01035     InvalidateWindowData(WC_DELIVERED_CARGO, 0);
01036     InvalidateWindowData(WC_PERFORMANCE_HISTORY, 0);
01037     InvalidateWindowData(WC_COMPANY_VALUE, 0);
01038     InvalidateWindowData(WC_LINKGRAPH_LEGEND, 0);
01039     /* The smallmap owner view also stores the company colours. */
01040     BuildOwnerLegend();
01041     InvalidateWindowData(WC_SMALLMAP, 0, 1);
01042 
01043     /* Company colour data is indirectly cached. */
01044     Vehicle *v;
01045     FOR_ALL_VEHICLES(v) {
01046       if (v->owner == _current_company) v->InvalidateNewGRFCache();
01047     }
01048 
01049     extern void UpdateObjectColours(const Company *c);
01050     UpdateObjectColours(c);
01051   }
01052   return CommandCost();
01053 }
01054 
01060 static bool IsUniqueCompanyName(const char *name)
01061 {
01062   const Company *c;
01063 
01064   FOR_ALL_COMPANIES(c) {
01065     if (c->name != NULL && strcmp(c->name, name) == 0) return false;
01066   }
01067 
01068   return true;
01069 }
01070 
01080 CommandCost CmdRenameCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01081 {
01082   bool reset = StrEmpty(text);
01083 
01084   if (!reset) {
01085     if (Utf8StringLength(text) >= MAX_LENGTH_COMPANY_NAME_CHARS) return CMD_ERROR;
01086     if (!IsUniqueCompanyName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01087   }
01088 
01089   if (flags & DC_EXEC) {
01090     Company *c = Company::Get(_current_company);
01091     free(c->name);
01092     c->name = reset ? NULL : strdup(text);
01093     MarkWholeScreenDirty();
01094     CompanyAdminUpdate(c);
01095   }
01096 
01097   return CommandCost();
01098 }
01099 
01105 static bool IsUniquePresidentName(const char *name)
01106 {
01107   const Company *c;
01108 
01109   FOR_ALL_COMPANIES(c) {
01110     if (c->president_name != NULL && strcmp(c->president_name, name) == 0) return false;
01111   }
01112 
01113   return true;
01114 }
01115 
01125 CommandCost CmdRenamePresident(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01126 {
01127   bool reset = StrEmpty(text);
01128 
01129   if (!reset) {
01130     if (Utf8StringLength(text) >= MAX_LENGTH_PRESIDENT_NAME_CHARS) return CMD_ERROR;
01131     if (!IsUniquePresidentName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01132   }
01133 
01134   if (flags & DC_EXEC) {
01135     Company *c = Company::Get(_current_company);
01136     free(c->president_name);
01137 
01138     if (reset) {
01139       c->president_name = NULL;
01140     } else {
01141       c->president_name = strdup(text);
01142 
01143       if (c->name_1 == STR_SV_UNNAMED && c->name == NULL) {
01144         char buf[80];
01145 
01146         snprintf(buf, lengthof(buf), "%s Transport", text);
01147         DoCommand(0, 0, 0, DC_EXEC, CMD_RENAME_COMPANY, buf);
01148       }
01149     }
01150 
01151     MarkWholeScreenDirty();
01152     CompanyAdminUpdate(c);
01153   }
01154 
01155   return CommandCost();
01156 }

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