company_cmd.cpp

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00001 /* $Id: company_cmd.cpp 20431 2010-08-09 21:53:44Z rubidium $ */
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_func.h"
00015 #include "company_gui.h"
00016 #include "town.h"
00017 #include "news_func.h"
00018 #include "cmd_helper.h"
00019 #include "command_func.h"
00020 #include "network/network.h"
00021 #include "network/network_func.h"
00022 #include "network/network_base.h"
00023 #include "ai/ai.hpp"
00024 #include "company_manager_face.h"
00025 #include "group.h"
00026 #include "window_func.h"
00027 #include "strings_func.h"
00028 #include "gfx_func.h"
00029 #include "date_func.h"
00030 #include "sound_func.h"
00031 #include "autoreplace_func.h"
00032 #include "autoreplace_gui.h"
00033 #include "rail.h"
00034 #include "core/pool_func.hpp"
00035 #include "settings_func.h"
00036 #include "vehicle_base.h"
00037 #include "vehicle_func.h"
00038 #include "sprite.h"
00039 
00040 #include "table/strings.h"
00041 
00042 CompanyByte _local_company;
00043 CompanyByte _current_company;
00044 /* NOSAVE: can be determined from company structs */
00045 Colours _company_colours[MAX_COMPANIES];
00046 CompanyManagerFace _company_manager_face; 
00047 uint _next_competitor_start;              
00048 uint _cur_company_tick_index;             
00049 
00050 CompanyPool _company_pool("Company");
00051 INSTANTIATE_POOL_METHODS(Company)
00052 
00053 Company::Company(uint16 name_1, bool is_ai) :
00054   name_1(name_1),
00055   location_of_HQ(INVALID_TILE),
00056   is_ai(is_ai)
00057 {
00058   for (uint j = 0; j < 4; j++) this->share_owners[j] = COMPANY_SPECTATOR;
00059   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, INVALID_COMPANY);
00060 }
00061 
00062 Company::~Company()
00063 {
00064   free(this->name);
00065   free(this->president_name);
00066   free(this->num_engines);
00067 
00068   if (CleaningPool()) return;
00069 
00070   DeleteCompanyWindows(this->index);
00071 }
00072 
00077 void Company::PostDestructor(size_t index)
00078 {
00079   InvalidateWindowData(WC_GRAPH_LEGEND, 0, (int)index);
00080   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, (int)index);
00081   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00082   /* If the currently shown error message has this company in it, the close it. */
00083   InvalidateWindowData(WC_ERRMSG, 0);
00084 }
00085 
00092 void SetLocalCompany(CompanyID new_company)
00093 {
00094   /* company could also be COMPANY_SPECTATOR or OWNER_NONE */
00095   assert(Company::IsValidID(new_company) || new_company == COMPANY_SPECTATOR || new_company == OWNER_NONE);
00096 
00097 #ifdef ENABLE_NETWORK
00098   /* Delete the chat window, if you were team chatting. */
00099   InvalidateWindowData(WC_SEND_NETWORK_MSG, DESTTYPE_TEAM, _local_company);
00100 #endif
00101 
00102   _local_company = new_company;
00103 
00104   /* Delete any construction windows... */
00105   DeleteConstructionWindows();
00106 
00107   /* ... and redraw the whole screen. */
00108   MarkWholeScreenDirty();
00109 }
00110 
00111 uint16 GetDrawStringCompanyColour(CompanyID company)
00112 {
00113   /* Get the colour for DrawString-subroutines which matches the colour
00114    * of the company */
00115   if (!Company::IsValidID(company)) return _colour_gradient[COLOUR_WHITE][4] | IS_PALETTE_COLOUR;
00116   return (_colour_gradient[_company_colours[company]][4]) | IS_PALETTE_COLOUR;
00117 }
00118 
00119 void DrawCompanyIcon(CompanyID c, int x, int y)
00120 {
00121   DrawSprite(SPR_COMPANY_ICON, COMPANY_SPRITE_COLOUR(c), x, y);
00122 }
00123 
00130 bool IsValidCompanyManagerFace(CompanyManagerFace cmf)
00131 {
00132   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_GEN_ETHN, GE_WM)) return false;
00133 
00134   GenderEthnicity ge   = (GenderEthnicity)GetCompanyManagerFaceBits(cmf, CMFV_GEN_ETHN, GE_WM);
00135   bool has_moustache   = !HasBit(ge, GENDER_FEMALE) && GetCompanyManagerFaceBits(cmf, CMFV_HAS_MOUSTACHE,   ge) != 0;
00136   bool has_tie_earring = !HasBit(ge, GENDER_FEMALE) || GetCompanyManagerFaceBits(cmf, CMFV_HAS_TIE_EARRING, ge) != 0;
00137   bool has_glasses     = GetCompanyManagerFaceBits(cmf, CMFV_HAS_GLASSES, ge) != 0;
00138 
00139   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_EYE_COLOUR, ge)) return false;
00140   for (CompanyManagerFaceVariable cmfv = CMFV_CHEEKS; cmfv < CMFV_END; cmfv++) {
00141     switch (cmfv) {
00142       case CMFV_MOUSTACHE:   if (!has_moustache)   continue; break;
00143       case CMFV_LIPS:        // FALL THROUGH
00144       case CMFV_NOSE:        if (has_moustache)    continue; break;
00145       case CMFV_TIE_EARRING: if (!has_tie_earring) continue; break;
00146       case CMFV_GLASSES:     if (!has_glasses)     continue; break;
00147       default: break;
00148     }
00149     if (!AreCompanyManagerFaceBitsValid(cmf, cmfv, ge)) return false;
00150   }
00151 
00152   return true;
00153 }
00154 
00155 void InvalidateCompanyWindows(const Company *company)
00156 {
00157   CompanyID cid = company->index;
00158 
00159   if (cid == _local_company) SetWindowDirty(WC_STATUS_BAR, 0);
00160   SetWindowDirty(WC_FINANCES, cid);
00161 }
00162 
00163 bool CheckCompanyHasMoney(CommandCost &cost)
00164 {
00165   if (cost.GetCost() > 0) {
00166     const Company *c = Company::GetIfValid(_current_company);
00167     if (c != NULL && cost.GetCost() > c->money) {
00168       SetDParam(0, cost.GetCost());
00169       cost.MakeError(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY);
00170       return false;
00171     }
00172   }
00173   return true;
00174 }
00175 
00176 static void SubtractMoneyFromAnyCompany(Company *c, CommandCost cost)
00177 {
00178   if (cost.GetCost() == 0) return;
00179   assert(cost.GetExpensesType() != INVALID_EXPENSES);
00180 
00181   c->money -= cost.GetCost();
00182   c->yearly_expenses[0][cost.GetExpensesType()] += cost.GetCost();
00183 
00184   if (HasBit(1 << EXPENSES_TRAIN_INC    |
00185              1 << EXPENSES_ROADVEH_INC  |
00186              1 << EXPENSES_AIRCRAFT_INC |
00187              1 << EXPENSES_SHIP_INC, cost.GetExpensesType())) {
00188     c->cur_economy.income -= cost.GetCost();
00189   } else if (HasBit(1 << EXPENSES_TRAIN_RUN    |
00190                     1 << EXPENSES_ROADVEH_RUN  |
00191                     1 << EXPENSES_AIRCRAFT_RUN |
00192                     1 << EXPENSES_SHIP_RUN     |
00193                     1 << EXPENSES_PROPERTY     |
00194                     1 << EXPENSES_LOAN_INT, cost.GetExpensesType())) {
00195     c->cur_economy.expenses -= cost.GetCost();
00196   }
00197 
00198   InvalidateCompanyWindows(c);
00199 }
00200 
00201 void SubtractMoneyFromCompany(CommandCost cost)
00202 {
00203   Company *c = Company::GetIfValid(_current_company);
00204   if (c != NULL) SubtractMoneyFromAnyCompany(c, cost);
00205 }
00206 
00207 void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cst)
00208 {
00209   Company *c = Company::Get(company);
00210   byte m = c->money_fraction;
00211   Money cost = cst.GetCost();
00212 
00213   c->money_fraction = m - (byte)cost;
00214   cost >>= 8;
00215   if (c->money_fraction > m) cost++;
00216   if (cost != 0) SubtractMoneyFromAnyCompany(c, CommandCost(cst.GetExpensesType(), cost));
00217 }
00218 
00225 void GetNameOfOwner(Owner owner, TileIndex tile)
00226 {
00227   SetDParam(2, owner);
00228 
00229   if (owner != OWNER_TOWN) {
00230     if (!Company::IsValidID(owner)) {
00231       SetDParam(0, STR_COMPANY_SOMEONE);
00232     } else {
00233       SetDParam(0, STR_COMPANY_NAME);
00234       SetDParam(1, owner);
00235     }
00236   } else {
00237     assert(tile != 0);
00238     const Town *t = ClosestTownFromTile(tile, UINT_MAX);
00239 
00240     SetDParam(0, STR_TOWN_NAME);
00241     SetDParam(1, t->index);
00242   }
00243 }
00244 
00245 
00254 bool CheckOwnership(Owner owner, TileIndex tile)
00255 {
00256   assert(owner < OWNER_END);
00257   assert(owner != OWNER_TOWN || tile != 0);
00258 
00259   if (owner == _current_company) return true;
00260   _error_message = STR_ERROR_OWNED_BY;
00261   GetNameOfOwner(owner, tile);
00262   return false;
00263 }
00264 
00272 bool CheckTileOwnership(TileIndex tile)
00273 {
00274   Owner owner = GetTileOwner(tile);
00275 
00276   assert(owner < OWNER_END);
00277 
00278   if (owner == _current_company) return true;
00279   _error_message = STR_ERROR_OWNED_BY;
00280 
00281   /* no need to get the name of the owner unless we're the local company (saves some time) */
00282   if (IsLocalCompany()) GetNameOfOwner(owner, tile);
00283   return false;
00284 }
00285 
00286 static void GenerateCompanyName(Company *c)
00287 {
00288   TileIndex tile;
00289   Town *t;
00290   StringID str;
00291   Company *cc;
00292   uint32 strp;
00293   /* Reserve space for extra unicode character. We need to do this to be able
00294    * to detect too long company name. */
00295   char buffer[MAX_LENGTH_COMPANY_NAME_BYTES + MAX_CHAR_LENGTH];
00296 
00297   if (c->name_1 != STR_SV_UNNAMED) return;
00298 
00299   tile = c->last_build_coordinate;
00300   if (tile == 0) return;
00301 
00302   t = ClosestTownFromTile(tile, UINT_MAX);
00303 
00304   if (t->name == NULL && IsInsideMM(t->townnametype, SPECSTR_TOWNNAME_START, SPECSTR_TOWNNAME_LAST + 1)) {
00305     str = t->townnametype - SPECSTR_TOWNNAME_START + SPECSTR_PLAYERNAME_START;
00306     strp = t->townnameparts;
00307 
00308 verify_name:;
00309     /* No companies must have this name already */
00310     FOR_ALL_COMPANIES(cc) {
00311       if (cc->name_1 == str && cc->name_2 == strp) goto bad_town_name;
00312     }
00313 
00314     GetString(buffer, str, lastof(buffer));
00315     if (strlen(buffer) >= MAX_LENGTH_COMPANY_NAME_BYTES) goto bad_town_name;
00316 
00317 set_name:;
00318     c->name_1 = str;
00319     c->name_2 = strp;
00320 
00321     MarkWholeScreenDirty();
00322 
00323     if (c->is_ai) {
00324       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00325       cni->FillData(c);
00326       SetDParam(0, STR_NEWS_COMPANY_LAUNCH_TITLE);
00327       SetDParam(1, STR_NEWS_COMPANY_LAUNCH_DESCRIPTION);
00328       SetDParamStr(2, cni->company_name);
00329       SetDParam(3, t->index);
00330       AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_NEW, NR_TILE, c->last_build_coordinate, NR_NONE, UINT32_MAX, cni);
00331     }
00332     AI::BroadcastNewEvent(new AIEventCompanyNew(c->index), c->index);
00333     return;
00334   }
00335 bad_town_name:;
00336 
00337   if (c->president_name_1 == SPECSTR_PRESIDENT_NAME) {
00338     str = SPECSTR_ANDCO_NAME;
00339     strp = c->president_name_2;
00340     goto set_name;
00341   } else {
00342     str = SPECSTR_ANDCO_NAME;
00343     strp = Random();
00344     goto verify_name;
00345   }
00346 }
00347 
00348 static const byte _colour_sort[COLOUR_END] = {2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 1, 1, 1};
00349 static const Colours _similar_colour[COLOUR_END][2] = {
00350   { COLOUR_BLUE,       COLOUR_LIGHT_BLUE }, // COLOUR_DARK_BLUE
00351   { COLOUR_GREEN,      COLOUR_DARK_GREEN }, // COLOUR_PALE_GREEN
00352   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_PINK
00353   { COLOUR_ORANGE,     INVALID_COLOUR    }, // COLOUR_YELLOW
00354   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_RED
00355   { COLOUR_DARK_BLUE,  COLOUR_BLUE       }, // COLOUR_LIGHT_BLUE
00356   { COLOUR_PALE_GREEN, COLOUR_DARK_GREEN }, // COLOUR_GREEN
00357   { COLOUR_PALE_GREEN, COLOUR_GREEN      }, // COLOUR_DARK_GREEN
00358   { COLOUR_DARK_BLUE,  COLOUR_LIGHT_BLUE }, // COLOUR_BLUE
00359   { COLOUR_BROWN,      COLOUR_ORANGE     }, // COLOUR_CREAM
00360   { COLOUR_PURPLE,     INVALID_COLOUR    }, // COLOUR_MAUVE
00361   { COLOUR_MAUVE,      INVALID_COLOUR    }, // COLOUR_PURPLE
00362   { COLOUR_YELLOW,     COLOUR_CREAM      }, // COLOUR_ORANGE
00363   { COLOUR_CREAM,      INVALID_COLOUR    }, // COLOUR_BROWN
00364   { COLOUR_WHITE,      INVALID_COLOUR    }, // COLOUR_GREY
00365   { COLOUR_GREY,       INVALID_COLOUR    }, // COLOUR_WHITE
00366 };
00367 
00368 static Colours GenerateCompanyColour()
00369 {
00370   Colours colours[COLOUR_END];
00371 
00372   /* Initialize array */
00373   for (uint i = 0; i < COLOUR_END; i++) colours[i] = (Colours)i;
00374 
00375   /* And randomize it */
00376   for (uint i = 0; i < 100; i++) {
00377     uint r = Random();
00378     Swap(colours[GB(r, 0, 4)], colours[GB(r, 4, 4)]);
00379   }
00380 
00381   /* Bubble sort it according to the values in table 1 */
00382   for (uint i = 0; i < COLOUR_END; i++) {
00383     for (uint j = 1; j < COLOUR_END; j++) {
00384       if (_colour_sort[colours[j - 1]] < _colour_sort[colours[j]]) {
00385         Swap(colours[j - 1], colours[j]);
00386       }
00387     }
00388   };
00389 
00390   /* Move the colours that look similar to each company's colour to the side */
00391   Company *c;
00392   FOR_ALL_COMPANIES(c) {
00393     Colours pcolour = (Colours)c->colour;
00394 
00395     for (uint i = 0; i < COLOUR_END; i++) {
00396       if (colours[i] == pcolour) {
00397         colours[i] = INVALID_COLOUR;
00398         break;
00399       }
00400     }
00401 
00402     for (uint j = 0; j < 2; j++) {
00403       Colours similar = _similar_colour[pcolour][j];
00404       if (similar == INVALID_COLOUR) break;
00405 
00406       for (uint i = 1; i < COLOUR_END; i++) {
00407         if (colours[i - 1] == similar) Swap(colours[i - 1], colours[i]);
00408       }
00409     }
00410   }
00411 
00412   /* Return the first available colour */
00413   for (uint i = 0; i < COLOUR_END; i++) {
00414     if (colours[i] != INVALID_COLOUR) return colours[i];
00415   }
00416 
00417   NOT_REACHED();
00418 }
00419 
00420 static void GeneratePresidentName(Company *c)
00421 {
00422   for (;;) {
00423 restart:;
00424     c->president_name_2 = Random();
00425     c->president_name_1 = SPECSTR_PRESIDENT_NAME;
00426 
00427     /* Reserve space for extra unicode character. We need to do this to be able
00428      * to detect too long president name. */
00429     char buffer[MAX_LENGTH_PRESIDENT_NAME_BYTES + MAX_CHAR_LENGTH];
00430     SetDParam(0, c->index);
00431     GetString(buffer, STR_PRESIDENT_NAME, lastof(buffer));
00432     if (strlen(buffer) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) continue;
00433 
00434     Company *cc;
00435     FOR_ALL_COMPANIES(cc) {
00436       if (c != cc) {
00437         /* Reserve extra space so even overlength president names can be compared. */
00438         char buffer2[MAX_LENGTH_PRESIDENT_NAME_BYTES + MAX_CHAR_LENGTH];
00439         SetDParam(0, cc->index);
00440         GetString(buffer2, STR_PRESIDENT_NAME, lastof(buffer2));
00441         if (strcmp(buffer2, buffer) == 0) goto restart;
00442       }
00443     }
00444     return;
00445   }
00446 }
00447 
00448 void ResetCompanyLivery(Company *c)
00449 {
00450   for (LiveryScheme scheme = LS_BEGIN; scheme < LS_END; scheme++) {
00451     c->livery[scheme].in_use  = false;
00452     c->livery[scheme].colour1 = c->colour;
00453     c->livery[scheme].colour2 = c->colour;
00454   }
00455 }
00456 
00464 Company *DoStartupNewCompany(bool is_ai, CompanyID company = INVALID_COMPANY)
00465 {
00466   if (!Company::CanAllocateItem()) return NULL;
00467 
00468   /* we have to generate colour before this company is valid */
00469   Colours colour = GenerateCompanyColour();
00470 
00471   Company *c;
00472   if (company == INVALID_COMPANY) {
00473     c = new Company(STR_SV_UNNAMED, is_ai);
00474   } else {
00475     if (Company::IsValidID(company)) return NULL;
00476     c = new (company) Company(STR_SV_UNNAMED, is_ai);
00477   }
00478 
00479   c->colour = colour;
00480 
00481   ResetCompanyLivery(c);
00482   _company_colours[c->index] = (Colours)c->colour;
00483 
00484   c->money = c->current_loan = 100000;
00485 
00486   c->share_owners[0] = c->share_owners[1] = c->share_owners[2] = c->share_owners[3] = INVALID_OWNER;
00487 
00488   c->avail_railtypes = GetCompanyRailtypes(c->index);
00489   c->avail_roadtypes = GetCompanyRoadtypes(c->index);
00490   c->inaugurated_year = _cur_year;
00491   RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
00492 
00493   SetDefaultCompanySettings(c->index);
00494 
00495   GeneratePresidentName(c);
00496 
00497   SetWindowDirty(WC_GRAPH_LEGEND, 0);
00498   SetWindowDirty(WC_TOOLBAR_MENU, 0);
00499   SetWindowDirty(WC_CLIENT_LIST, 0);
00500 
00501   if (is_ai && (!_networking || _network_server)) AI::StartNew(c->index);
00502 
00503   c->num_engines = CallocT<uint16>(Engine::GetPoolSize());
00504 
00505   return c;
00506 }
00507 
00508 void StartupCompanies()
00509 {
00510   _next_competitor_start = 0;
00511 }
00512 
00513 #ifdef ENABLE_AI
00514 static void MaybeStartNewCompany()
00515 {
00516 #ifdef ENABLE_NETWORK
00517   if (_networking && Company::GetNumItems() >= _settings_client.network.max_companies) return;
00518 #endif /* ENABLE_NETWORK */
00519 
00520   Company *c;
00521 
00522   /* count number of competitors */
00523   uint n = 0;
00524   FOR_ALL_COMPANIES(c) {
00525     if (c->is_ai) n++;
00526   }
00527 
00528   if (n < (uint)_settings_game.difficulty.max_no_competitors) {
00529     /* Send a command to all clients to start up a new AI.
00530      * Works fine for Multiplayer and Singleplayer */
00531     DoCommandP(0, 1, INVALID_COMPANY, CMD_COMPANY_CTRL);
00532   }
00533 }
00534 #endif /* ENABLE_AI */
00535 
00536 void InitializeCompanies()
00537 {
00538   _company_pool.CleanPool();
00539   _cur_company_tick_index = 0;
00540 }
00541 
00548 bool MayCompanyTakeOver(CompanyID cbig, CompanyID csmall)
00549 {
00550   uint big_counts[4], small_counts[4];
00551   CountCompanyVehicles(cbig,   big_counts);
00552   CountCompanyVehicles(csmall, small_counts);
00553 
00554   /* Do the combined vehicle counts stay within the limits? */
00555   return big_counts[VEH_TRAIN]     + small_counts[VEH_TRAIN]    <= _settings_game.vehicle.max_trains &&
00556     big_counts[VEH_ROAD]     + small_counts[VEH_ROAD]     <= _settings_game.vehicle.max_roadveh &&
00557     big_counts[VEH_SHIP]     + small_counts[VEH_SHIP]     <= _settings_game.vehicle.max_ships &&
00558     big_counts[VEH_AIRCRAFT] + small_counts[VEH_AIRCRAFT] <= _settings_game.vehicle.max_aircraft;
00559 }
00560 
00570 static void HandleBankruptcyTakeover(Company *c)
00571 {
00572   /* Amount of time out for each company to take over a company;
00573    * Timeout is a quarter (3 months of 30 days) divided over the
00574    * number of companies. The minimum number of days in a quarter
00575    * is 90: 31 in January, 28 in February and 31 in March.
00576    * Note that the company going bankrupt can't buy itself. */
00577   static const int TAKE_OVER_TIMEOUT = 3 * 30 * DAY_TICKS / (MAX_COMPANIES - 1);
00578 
00579   assert(c->bankrupt_asked != 0);
00580 
00581   /* We're currently asking some company to buy 'us' */
00582   if (c->bankrupt_timeout != 0) {
00583     c->bankrupt_timeout -= MAX_COMPANIES;
00584     if (c->bankrupt_timeout > 0) return;
00585     c->bankrupt_timeout = 0;
00586 
00587     return;
00588   }
00589 
00590   /* Did we ask everyone for bankruptcy? If so, bail out. */
00591   if (c->bankrupt_asked == MAX_UVALUE(CompanyMask)) return;
00592 
00593   Company *c2, *best = NULL;
00594   int32 best_performance = -1;
00595 
00596   /* Ask the company with the highest performance history first */
00597   FOR_ALL_COMPANIES(c2) {
00598     if (c2->bankrupt_asked == 0 && // Don't ask companies going bankrupt themselves
00599         !HasBit(c->bankrupt_asked, c2->index) &&
00600         best_performance < c2->old_economy[1].performance_history &&
00601         MayCompanyTakeOver(c2->index, c->index)) {
00602       best_performance = c2->old_economy[1].performance_history;
00603       best = c2;
00604     }
00605   }
00606 
00607   /* Asked all companies? */
00608   if (best_performance == -1) {
00609     c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00610     return;
00611   }
00612 
00613   SetBit(c->bankrupt_asked, best->index);
00614 
00615   c->bankrupt_timeout = TAKE_OVER_TIMEOUT;
00616   if (best->is_ai) {
00617     AI::NewEvent(best->index, new AIEventCompanyAskMerger(c->index, ClampToI32(c->bankrupt_value)));
00618   } else if (IsInteractiveCompany(best->index)) {
00619     ShowBuyCompanyDialog(c->index);
00620   }
00621 }
00622 
00623 void OnTick_Companies()
00624 {
00625   if (_game_mode == GM_EDITOR) return;
00626 
00627   Company *c = Company::GetIfValid(_cur_company_tick_index);
00628   if (c != NULL) {
00629     if (c->name_1 != 0) GenerateCompanyName(c);
00630     if (c->bankrupt_asked != 0) HandleBankruptcyTakeover(c);
00631   }
00632 
00633 #ifdef ENABLE_AI
00634   if (_next_competitor_start == 0) {
00635     _next_competitor_start = AI::GetStartNextTime() * DAY_TICKS;
00636   }
00637 
00638   if (AI::CanStartNew() && _game_mode != GM_MENU && --_next_competitor_start == 0) {
00639     MaybeStartNewCompany();
00640   }
00641 #endif /* ENABLE_AI */
00642 
00643   _cur_company_tick_index = (_cur_company_tick_index + 1) % MAX_COMPANIES;
00644 }
00645 
00646 void CompaniesYearlyLoop()
00647 {
00648   Company *c;
00649 
00650   /* Copy statistics */
00651   FOR_ALL_COMPANIES(c) {
00652     memmove(&c->yearly_expenses[1], &c->yearly_expenses[0], sizeof(c->yearly_expenses) - sizeof(c->yearly_expenses[0]));
00653     memset(&c->yearly_expenses[0], 0, sizeof(c->yearly_expenses[0]));
00654     SetWindowDirty(WC_FINANCES, c->index);
00655   }
00656 
00657   if (_settings_client.gui.show_finances && _local_company != COMPANY_SPECTATOR) {
00658     ShowCompanyFinances(_local_company);
00659     c = Company::Get(_local_company);
00660     if (c->num_valid_stat_ent > 5 && c->old_economy[0].performance_history < c->old_economy[4].performance_history) {
00661       SndPlayFx(SND_01_BAD_YEAR);
00662     } else {
00663       SndPlayFx(SND_00_GOOD_YEAR);
00664     }
00665   }
00666 }
00667 
00679 CommandCost CmdSetAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00680 {
00681   Company *c = Company::GetIfValid(_current_company);
00682   if (c == NULL) return CMD_ERROR;
00683 
00684   EngineID old_engine_type = GB(p2, 0, 16);
00685   EngineID new_engine_type = GB(p2, 16, 16);
00686   GroupID id_g = GB(p1, 16, 16);
00687   CommandCost cost;
00688 
00689   if (!Group::IsValidID(id_g) && !IsAllGroupID(id_g) && !IsDefaultGroupID(id_g)) return CMD_ERROR;
00690   if (!Engine::IsValidID(old_engine_type)) return CMD_ERROR;
00691 
00692   if (new_engine_type != INVALID_ENGINE) {
00693     if (!Engine::IsValidID(new_engine_type)) return CMD_ERROR;
00694     if (!CheckAutoreplaceValidity(old_engine_type, new_engine_type, _current_company)) return CMD_ERROR;
00695 
00696     cost = AddEngineReplacementForCompany(c, old_engine_type, new_engine_type, id_g, flags);
00697   } else {
00698     cost = RemoveEngineReplacementForCompany(c, old_engine_type, id_g, flags);
00699   }
00700 
00701   if ((flags & DC_EXEC) && IsLocalCompany()) InvalidateAutoreplaceWindow(old_engine_type, id_g);
00702 
00703   return cost;
00704 }
00705 
00711 void CompanyNewsInformation::FillData(const Company *c, const Company *other)
00712 {
00713   SetDParam(0, c->index);
00714   GetString(this->company_name, STR_COMPANY_NAME, lastof(this->company_name));
00715 
00716   if (other == NULL) {
00717     *this->other_company_name = '\0';
00718   } else {
00719     SetDParam(0, other->index);
00720     GetString(this->other_company_name, STR_COMPANY_NAME, lastof(this->other_company_name));
00721     c = other;
00722   }
00723 
00724   SetDParam(0, c->index);
00725   GetString(this->president_name, STR_PRESIDENT_NAME_MANAGER, lastof(this->president_name));
00726 
00727   this->colour = c->colour;
00728   this->face = c->face;
00729 
00730 }
00731 
00753 CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00754 {
00755   if (flags & DC_EXEC) _current_company = OWNER_NONE;
00756 
00757   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00758 
00759   switch (p1) {
00760     case 0: { // Create a new company
00761       /* This command is only executed in a multiplayer game */
00762       if (!_networking) return CMD_ERROR;
00763 
00764 #ifdef ENABLE_NETWORK
00765 
00766       /* Joining Client:
00767        * _local_company: COMPANY_SPECTATOR
00768        * cid = clientid
00769        *
00770        * Other client(s)/server:
00771        * _local_company: what they play as
00772        * cid = requested company/company of joining client */
00773       ClientID cid = (ClientID)p2;
00774 
00775       /* Has the network client a correct ClientIndex? */
00776       if (!(flags & DC_EXEC)) return CommandCost();
00777       NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(cid);
00778       if (ci == NULL) return CommandCost();
00779 
00780       /* Delete multiplayer progress bar */
00781       DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00782 
00783       Company *c = DoStartupNewCompany(false);
00784 
00785       /* A new company could not be created, revert to being a spectator */
00786       if (c == NULL) {
00787         if (_network_server) {
00788           ci->client_playas = COMPANY_SPECTATOR;
00789           NetworkUpdateClientInfo(ci->client_id);
00790         }
00791         break;
00792       }
00793 
00794       /* This is the client (or non-dedicated server) who wants a new company */
00795       if (cid == _network_own_client_id) {
00796         assert(_local_company == COMPANY_SPECTATOR);
00797         SetLocalCompany(c->index);
00798         if (!StrEmpty(_settings_client.network.default_company_pass)) {
00799           NetworkChangeCompanyPassword(_settings_client.network.default_company_pass);
00800         }
00801 
00802         _current_company = _local_company;
00803 
00804         /* Now that we have a new company, broadcast our company settings to
00805          * all clients so everything is in sync */
00806         SyncCompanySettings();
00807 
00808         MarkWholeScreenDirty();
00809       }
00810 
00811       if (_network_server) {
00812         /* XXX - UGLY! p2 (pid) is mis-used to fetch the client-id, done at
00813          * server side in network_server.c:838, function
00814          * DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND) */
00815         CompanyID old_playas = ci->client_playas;
00816         ci->client_playas = c->index;
00817         NetworkUpdateClientInfo(ci->client_id);
00818 
00819         if (Company::IsValidID(ci->client_playas)) {
00820           _network_company_states[c->index].months_empty = 0;
00821           _network_company_states[c->index].password[0] = '\0';
00822           NetworkServerUpdateCompanyPassworded(ci->client_playas, false);
00823 
00824           /* XXX - When a client joins, we automatically set its name to the
00825            * client's name (for some reason). As it stands now only the server
00826            * knows the client's name, so it needs to send out a "broadcast" to
00827            * do this. To achieve this we send a network command. However, it
00828            * uses _local_company to execute the command as.  To prevent abuse
00829            * (eg. only yourself can change your name/company), we 'cheat' by
00830            * impersonation _local_company as the server. Not the best solution;
00831            * but it works.
00832            * TODO: Perhaps this could be improved by when the client is ready
00833            * with joining to let it send itself the command, and not the server?
00834            * For example in network_client.c:534? */
00835           NetworkSend_Command(0, 0, 0, CMD_RENAME_PRESIDENT, NULL, ci->client_name, ci->client_playas);
00836         }
00837 
00838         /* Announce new company on network, if the client was a SPECTATOR before */
00839         if (old_playas == COMPANY_SPECTATOR) {
00840           NetworkServerSendChat(NETWORK_ACTION_COMPANY_NEW, DESTTYPE_BROADCAST, 0, "", ci->client_id, ci->client_playas + 1);
00841         }
00842       }
00843 #endif /* ENABLE_NETWORK */
00844     } break;
00845 
00846     case 1: // Make a new AI company
00847       if (!(flags & DC_EXEC)) return CommandCost();
00848 
00849       if (p2 != INVALID_COMPANY && (p2 >= MAX_COMPANIES || Company::IsValidID(p2))) return CMD_ERROR;
00850       DoStartupNewCompany(true, (CompanyID)p2);
00851       break;
00852 
00853     case 2: { // Delete a company
00854       Company *c = Company::GetIfValid(p2);
00855       if (c == NULL) return CMD_ERROR;
00856 
00857       if (!(flags & DC_EXEC)) return CommandCost();
00858 
00859       /* Delete any open window of the company */
00860       DeleteCompanyWindows(c->index);
00861       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00862       cni->FillData(c);
00863 
00864       /* Show the bankrupt news */
00865       SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
00866       SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
00867       SetDParamStr(2, cni->company_name);
00868       AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
00869 
00870       /* Remove the company */
00871       ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00872       if (c->is_ai) AI::Stop(c->index);
00873 
00874       CompanyID c_index = c->index;
00875       delete c;
00876       AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00877     } break;
00878 
00879     default: return CMD_ERROR;
00880   }
00881 
00882   return CommandCost();
00883 }
00884 
00893 CommandCost CmdSetCompanyManagerFace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00894 {
00895   CompanyManagerFace cmf = (CompanyManagerFace)p2;
00896 
00897   if (!IsValidCompanyManagerFace(cmf)) return CMD_ERROR;
00898 
00899   if (flags & DC_EXEC) {
00900     Company::Get(_current_company)->face = cmf;
00901     MarkWholeScreenDirty();
00902   }
00903   return CommandCost();
00904 }
00905 
00916 CommandCost CmdSetCompanyColour(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00917 {
00918   Colours colour = Extract<Colours, 0, 4>(p2);
00919   LiveryScheme scheme = Extract<LiveryScheme, 0, 8>(p1);
00920   byte state = GB(p1, 8, 2);
00921 
00922   if (scheme >= LS_END || state >= 3 || colour == INVALID_COLOUR) return CMD_ERROR;
00923 
00924   Company *c = Company::Get(_current_company);
00925 
00926   /* Ensure no two companies have the same primary colour */
00927   if (scheme == LS_DEFAULT && state == 0) {
00928     const Company *cc;
00929     FOR_ALL_COMPANIES(cc) {
00930       if (cc != c && cc->colour == colour) return CMD_ERROR;
00931     }
00932   }
00933 
00934   if (flags & DC_EXEC) {
00935     switch (state) {
00936       case 0:
00937         c->livery[scheme].colour1 = colour;
00938 
00939         /* If setting the first colour of the default scheme, adjust the
00940          * original and cached company colours too. */
00941         if (scheme == LS_DEFAULT) {
00942           _company_colours[_current_company] = colour;
00943           c->colour = colour;
00944         }
00945         break;
00946 
00947       case 1:
00948         c->livery[scheme].colour2 = colour;
00949         break;
00950 
00951       case 2:
00952         c->livery[scheme].in_use = colour != 0;
00953 
00954         /* Now handle setting the default scheme's in_use flag.
00955          * This is different to the other schemes, as it signifies if any
00956          * scheme is active at all. If this flag is not set, then no
00957          * processing of vehicle types occurs at all, and only the default
00958          * colours will be used. */
00959 
00960         /* If enabling a scheme, set the default scheme to be in use too */
00961         if (colour != 0) {
00962           c->livery[LS_DEFAULT].in_use = true;
00963           break;
00964         }
00965 
00966         /* Else loop through all schemes to see if any are left enabled.
00967          * If not, disable the default scheme too. */
00968         c->livery[LS_DEFAULT].in_use = false;
00969         for (scheme = LS_DEFAULT; scheme < LS_END; scheme++) {
00970           if (c->livery[scheme].in_use) {
00971             c->livery[LS_DEFAULT].in_use = true;
00972             break;
00973           }
00974         }
00975         break;
00976 
00977       default:
00978         break;
00979     }
00980     ResetVehicleColourMap();
00981     MarkWholeScreenDirty();
00982 
00983     /* All graph related to companies use the company colour. */
00984     InvalidateWindowData(WC_INCOME_GRAPH, 0);
00985     InvalidateWindowData(WC_OPERATING_PROFIT, 0);
00986     InvalidateWindowData(WC_DELIVERED_CARGO, 0);
00987     InvalidateWindowData(WC_PERFORMANCE_HISTORY, 0);
00988     InvalidateWindowData(WC_COMPANY_VALUE, 0);
00989 
00990     /* Company colour data is indirectly cached. */
00991     Vehicle *v;
00992     FOR_ALL_VEHICLES(v) {
00993       if (v->owner == _current_company) v->InvalidateNewGRFCache();
00994     }
00995   }
00996   return CommandCost();
00997 }
00998 
00999 static bool IsUniqueCompanyName(const char *name)
01000 {
01001   const Company *c;
01002 
01003   FOR_ALL_COMPANIES(c) {
01004     if (c->name != NULL && strcmp(c->name, name) == 0) return false;
01005   }
01006 
01007   return true;
01008 }
01009 
01018 CommandCost CmdRenameCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01019 {
01020   bool reset = StrEmpty(text);
01021 
01022   if (!reset) {
01023     if (strlen(text) >= MAX_LENGTH_COMPANY_NAME_BYTES) return CMD_ERROR;
01024     if (!IsUniqueCompanyName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01025   }
01026 
01027   if (flags & DC_EXEC) {
01028     Company *c = Company::Get(_current_company);
01029     free(c->name);
01030     c->name = reset ? NULL : strdup(text);
01031     MarkWholeScreenDirty();
01032   }
01033 
01034   return CommandCost();
01035 }
01036 
01037 static bool IsUniquePresidentName(const char *name)
01038 {
01039   const Company *c;
01040 
01041   FOR_ALL_COMPANIES(c) {
01042     if (c->president_name != NULL && strcmp(c->president_name, name) == 0) return false;
01043   }
01044 
01045   return true;
01046 }
01047 
01056 CommandCost CmdRenamePresident(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01057 {
01058   bool reset = StrEmpty(text);
01059 
01060   if (!reset) {
01061     if (strlen(text) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) return CMD_ERROR;
01062     if (!IsUniquePresidentName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01063   }
01064 
01065   if (flags & DC_EXEC) {
01066     Company *c = Company::Get(_current_company);
01067     free(c->president_name);
01068 
01069     if (reset) {
01070       c->president_name = NULL;
01071     } else {
01072       c->president_name = strdup(text);
01073 
01074       if (c->name_1 == STR_SV_UNNAMED && c->name == NULL) {
01075         char buf[80];
01076 
01077         snprintf(buf, lengthof(buf), "%s Transport", text);
01078         DoCommand(0, 0, 0, DC_EXEC, CMD_RENAME_COMPANY, buf);
01079       }
01080     }
01081 
01082     MarkWholeScreenDirty();
01083   }
01084 
01085   return CommandCost();
01086 }

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