company_cmd.cpp

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00001 /* $Id: company_cmd.cpp 18732 2010-01-05 17:11:56Z 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 "command_func.h"
00019 #include "network/network.h"
00020 #include "network/network_func.h"
00021 #include "network/network_base.h"
00022 #include "ai/ai.hpp"
00023 #include "company_manager_face.h"
00024 #include "group.h"
00025 #include "window_func.h"
00026 #include "strings_func.h"
00027 #include "gfx_func.h"
00028 #include "date_func.h"
00029 #include "sound_func.h"
00030 #include "autoreplace_func.h"
00031 #include "autoreplace_gui.h"
00032 #include "rail.h"
00033 #include "core/pool_func.hpp"
00034 #include "settings_func.h"
00035 #include "vehicle_base.h"
00036 #include "vehicle_func.h"
00037 
00038 #include "table/strings.h"
00039 
00040 CompanyByte _local_company;
00041 CompanyByte _current_company;
00042 /* NOSAVE: can be determined from company structs */
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 Company::Company(uint16 name_1, bool is_ai) :
00052   name_1(name_1),
00053   location_of_HQ(INVALID_TILE),
00054   is_ai(is_ai)
00055 {
00056   for (uint j = 0; j < 4; j++) this->share_owners[j] = COMPANY_SPECTATOR;
00057   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, INVALID_COMPANY);
00058 }
00059 
00060 Company::~Company()
00061 {
00062   free(this->name);
00063   free(this->president_name);
00064   free(this->num_engines);
00065 
00066   if (CleaningPool()) return;
00067 
00068   DeleteCompanyWindows(this->index);
00069 }
00070 
00075 void Company::PostDestructor(size_t index)
00076 {
00077   InvalidateWindowData(WC_GRAPH_LEGEND, 0, (int)index);
00078   InvalidateWindowData(WC_PERFORMANCE_DETAIL, 0, (int)index);
00079   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00080 }
00081 
00088 void SetLocalCompany(CompanyID new_company)
00089 {
00090   /* company could also be COMPANY_SPECTATOR or OWNER_NONE */
00091   assert(Company::IsValidID(new_company) || new_company == COMPANY_SPECTATOR || new_company == OWNER_NONE);
00092 
00093 #ifdef ENABLE_NETWORK
00094   /* Delete the chat window, if you were team chatting. */
00095   InvalidateWindowData(WC_SEND_NETWORK_MSG, DESTTYPE_TEAM, _local_company);
00096 #endif
00097 
00098   _local_company = new_company;
00099 
00100   /* Delete any construction windows... */
00101   DeleteConstructionWindows();
00102 
00103   /* ... and redraw the whole screen. */
00104   MarkWholeScreenDirty();
00105 }
00106 
00107 uint16 GetDrawStringCompanyColour(CompanyID company)
00108 {
00109   /* Get the colour for DrawString-subroutines which matches the colour
00110    * of the company */
00111   if (!Company::IsValidID(company)) return _colour_gradient[COLOUR_WHITE][4] | IS_PALETTE_COLOUR;
00112   return (_colour_gradient[_company_colours[company]][4]) | IS_PALETTE_COLOUR;
00113 }
00114 
00115 void DrawCompanyIcon(CompanyID c, int x, int y)
00116 {
00117   DrawSprite(SPR_COMPANY_ICON, COMPANY_SPRITE_COLOUR(c), x, y);
00118 }
00119 
00126 bool IsValidCompanyManagerFace(CompanyManagerFace cmf)
00127 {
00128   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_GEN_ETHN, GE_WM)) return false;
00129 
00130   GenderEthnicity ge   = (GenderEthnicity)GetCompanyManagerFaceBits(cmf, CMFV_GEN_ETHN, GE_WM);
00131   bool has_moustache   = !HasBit(ge, GENDER_FEMALE) && GetCompanyManagerFaceBits(cmf, CMFV_HAS_MOUSTACHE,   ge) != 0;
00132   bool has_tie_earring = !HasBit(ge, GENDER_FEMALE) || GetCompanyManagerFaceBits(cmf, CMFV_HAS_TIE_EARRING, ge) != 0;
00133   bool has_glasses     = GetCompanyManagerFaceBits(cmf, CMFV_HAS_GLASSES, ge) != 0;
00134 
00135   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_EYE_COLOUR, ge)) return false;
00136   for (CompanyManagerFaceVariable cmfv = CMFV_CHEEKS; cmfv < CMFV_END; cmfv++) {
00137     switch (cmfv) {
00138       case CMFV_MOUSTACHE:   if (!has_moustache)   continue; break;
00139       case CMFV_LIPS:        // FALL THROUGH
00140       case CMFV_NOSE:        if (has_moustache)    continue; break;
00141       case CMFV_TIE_EARRING: if (!has_tie_earring) continue; break;
00142       case CMFV_GLASSES:     if (!has_glasses)     continue; break;
00143       default: break;
00144     }
00145     if (!AreCompanyManagerFaceBitsValid(cmf, cmfv, ge)) return false;
00146   }
00147 
00148   return true;
00149 }
00150 
00151 void InvalidateCompanyWindows(const Company *company)
00152 {
00153   CompanyID cid = company->index;
00154 
00155   if (cid == _local_company) SetWindowDirty(WC_STATUS_BAR, 0);
00156   SetWindowDirty(WC_FINANCES, cid);
00157 }
00158 
00159 bool CheckCompanyHasMoney(CommandCost cost)
00160 {
00161   if (cost.GetCost() > 0) {
00162     const Company *c = Company::GetIfValid(_current_company);
00163     if (c != NULL && cost.GetCost() > c->money) {
00164       SetDParam(0, cost.GetCost());
00165       _error_message = STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY;
00166       return false;
00167     }
00168   }
00169   return true;
00170 }
00171 
00172 static void SubtractMoneyFromAnyCompany(Company *c, CommandCost cost)
00173 {
00174   if (cost.GetCost() == 0) return;
00175   assert(cost.GetExpensesType() != INVALID_EXPENSES);
00176 
00177   c->money -= cost.GetCost();
00178   c->yearly_expenses[0][cost.GetExpensesType()] += cost.GetCost();
00179 
00180   if (HasBit(1 << EXPENSES_TRAIN_INC    |
00181              1 << EXPENSES_ROADVEH_INC  |
00182              1 << EXPENSES_AIRCRAFT_INC |
00183              1 << EXPENSES_SHIP_INC, cost.GetExpensesType())) {
00184     c->cur_economy.income -= cost.GetCost();
00185   } else if (HasBit(1 << EXPENSES_TRAIN_RUN    |
00186                     1 << EXPENSES_ROADVEH_RUN  |
00187                     1 << EXPENSES_AIRCRAFT_RUN |
00188                     1 << EXPENSES_SHIP_RUN     |
00189                     1 << EXPENSES_PROPERTY     |
00190                     1 << EXPENSES_LOAN_INT, cost.GetExpensesType())) {
00191     c->cur_economy.expenses -= cost.GetCost();
00192   }
00193 
00194   InvalidateCompanyWindows(c);
00195 }
00196 
00197 void SubtractMoneyFromCompany(CommandCost cost)
00198 {
00199   Company *c = Company::GetIfValid(_current_company);
00200   if (c != NULL) SubtractMoneyFromAnyCompany(c, cost);
00201 }
00202 
00203 void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cst)
00204 {
00205   Company *c = Company::Get(company);
00206   byte m = c->money_fraction;
00207   Money cost = cst.GetCost();
00208 
00209   c->money_fraction = m - (byte)cost;
00210   cost >>= 8;
00211   if (c->money_fraction > m) cost++;
00212   if (cost != 0) SubtractMoneyFromAnyCompany(c, CommandCost(cst.GetExpensesType(), cost));
00213 }
00214 
00221 void GetNameOfOwner(Owner owner, TileIndex tile)
00222 {
00223   SetDParam(2, owner);
00224 
00225   if (owner != OWNER_TOWN) {
00226     if (!Company::IsValidID(owner)) {
00227       SetDParam(0, STR_COMPANY_SOMEONE);
00228     } else {
00229       SetDParam(0, STR_COMPANY_NAME);
00230       SetDParam(1, owner);
00231     }
00232   } else {
00233     assert(tile != 0);
00234     const Town *t = ClosestTownFromTile(tile, UINT_MAX);
00235 
00236     SetDParam(0, STR_TOWN_NAME);
00237     SetDParam(1, t->index);
00238   }
00239 }
00240 
00241 
00250 bool CheckOwnership(Owner owner, TileIndex tile)
00251 {
00252   assert(owner < OWNER_END);
00253   assert(owner != OWNER_TOWN || tile != 0);
00254 
00255   if (owner == _current_company) return true;
00256   _error_message = STR_ERROR_OWNED_BY;
00257   GetNameOfOwner(owner, tile);
00258   return false;
00259 }
00260 
00268 bool CheckTileOwnership(TileIndex tile)
00269 {
00270   Owner owner = GetTileOwner(tile);
00271 
00272   assert(owner < OWNER_END);
00273 
00274   if (owner == _current_company) return true;
00275   _error_message = STR_ERROR_OWNED_BY;
00276 
00277   /* no need to get the name of the owner unless we're the local company (saves some time) */
00278   if (IsLocalCompany()) GetNameOfOwner(owner, tile);
00279   return false;
00280 }
00281 
00282 static void GenerateCompanyName(Company *c)
00283 {
00284   TileIndex tile;
00285   Town *t;
00286   StringID str;
00287   Company *cc;
00288   uint32 strp;
00289   /* Reserve space for extra unicode character. We need to do this to be able
00290    * to detect too long company name. */
00291   char buffer[MAX_LENGTH_COMPANY_NAME_BYTES + MAX_CHAR_LENGTH];
00292 
00293   if (c->name_1 != STR_SV_UNNAMED) return;
00294 
00295   tile = c->last_build_coordinate;
00296   if (tile == 0) return;
00297 
00298   t = ClosestTownFromTile(tile, UINT_MAX);
00299 
00300   if (t->name == NULL && IsInsideMM(t->townnametype, SPECSTR_TOWNNAME_START, SPECSTR_TOWNNAME_LAST + 1)) {
00301     str = t->townnametype - SPECSTR_TOWNNAME_START + SPECSTR_PLAYERNAME_START;
00302     strp = t->townnameparts;
00303 
00304 verify_name:;
00305     /* No companies must have this name already */
00306     FOR_ALL_COMPANIES(cc) {
00307       if (cc->name_1 == str && cc->name_2 == strp) goto bad_town_name;
00308     }
00309 
00310     GetString(buffer, str, lastof(buffer));
00311     if (strlen(buffer) >= MAX_LENGTH_COMPANY_NAME_BYTES) goto bad_town_name;
00312 
00313 set_name:;
00314     c->name_1 = str;
00315     c->name_2 = strp;
00316 
00317     MarkWholeScreenDirty();
00318 
00319     if (c->is_ai) {
00320       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00321       cni->FillData(c);
00322       SetDParam(0, STR_NEWS_COMPANY_LAUNCH_TITLE);
00323       SetDParam(1, STR_NEWS_COMPANY_LAUNCH_DESCRIPTION);
00324       SetDParamStr(2, cni->company_name);
00325       SetDParam(3, t->index);
00326       AddNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_NEW, NR_TILE, c->last_build_coordinate, NR_NONE, UINT32_MAX, cni);
00327     }
00328     AI::BroadcastNewEvent(new AIEventCompanyNew(c->index), c->index);
00329     return;
00330   }
00331 bad_town_name:;
00332 
00333   if (c->president_name_1 == SPECSTR_PRESIDENT_NAME) {
00334     str = SPECSTR_ANDCO_NAME;
00335     strp = c->president_name_2;
00336     goto set_name;
00337   } else {
00338     str = SPECSTR_ANDCO_NAME;
00339     strp = Random();
00340     goto verify_name;
00341   }
00342 }
00343 
00344 static const byte _colour_sort[COLOUR_END] = {2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 1, 1, 1};
00345 static const Colours _similar_colour[COLOUR_END][2] = {
00346   { COLOUR_BLUE,       COLOUR_LIGHT_BLUE }, // COLOUR_DARK_BLUE
00347   { COLOUR_GREEN,      COLOUR_DARK_GREEN }, // COLOUR_PALE_GREEN
00348   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_PINK
00349   { COLOUR_ORANGE,     INVALID_COLOUR    }, // COLOUR_YELLOW
00350   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_RED
00351   { COLOUR_DARK_BLUE,  COLOUR_BLUE       }, // COLOUR_LIGHT_BLUE
00352   { COLOUR_PALE_GREEN, COLOUR_DARK_GREEN }, // COLOUR_GREEN
00353   { COLOUR_PALE_GREEN, COLOUR_GREEN      }, // COLOUR_DARK_GREEN
00354   { COLOUR_DARK_BLUE,  COLOUR_LIGHT_BLUE }, // COLOUR_BLUE
00355   { COLOUR_BROWN,      COLOUR_ORANGE     }, // COLOUR_CREAM
00356   { COLOUR_PURPLE,     INVALID_COLOUR    }, // COLOUR_MAUVE
00357   { COLOUR_MAUVE,      INVALID_COLOUR    }, // COLOUR_PURPLE
00358   { COLOUR_YELLOW,     COLOUR_CREAM      }, // COLOUR_ORANGE
00359   { COLOUR_CREAM,      INVALID_COLOUR    }, // COLOUR_BROWN
00360   { COLOUR_WHITE,      INVALID_COLOUR    }, // COLOUR_GREY
00361   { COLOUR_GREY,       INVALID_COLOUR    }, // COLOUR_WHITE
00362 };
00363 
00364 static Colours GenerateCompanyColour()
00365 {
00366   Colours colours[COLOUR_END];
00367 
00368   /* Initialize array */
00369   for (uint i = 0; i < COLOUR_END; i++) colours[i] = (Colours)i;
00370 
00371   /* And randomize it */
00372   for (uint i = 0; i < 100; i++) {
00373     uint r = Random();
00374     Swap(colours[GB(r, 0, 4)], colours[GB(r, 4, 4)]);
00375   }
00376 
00377   /* Bubble sort it according to the values in table 1 */
00378   for (uint i = 0; i < COLOUR_END; i++) {
00379     for (uint j = 1; j < COLOUR_END; j++) {
00380       if (_colour_sort[colours[j - 1]] < _colour_sort[colours[j]]) {
00381         Swap(colours[j - 1], colours[j]);
00382       }
00383     }
00384   };
00385 
00386   /* Move the colours that look similar to each company's colour to the side */
00387   Company *c;
00388   FOR_ALL_COMPANIES(c) {
00389     Colours pcolour = (Colours)c->colour;
00390 
00391     for (uint i = 0; i < COLOUR_END; i++) {
00392       if (colours[i] == pcolour) {
00393         colours[i] = INVALID_COLOUR;
00394         break;
00395       }
00396     }
00397 
00398     for (uint j = 0; j < 2; j++) {
00399       Colours similar = _similar_colour[pcolour][j];
00400       if (similar == INVALID_COLOUR) break;
00401 
00402       for (uint i = 1; i < COLOUR_END; i++) {
00403         if (colours[i - 1] == similar) Swap(colours[i - 1], colours[i]);
00404       }
00405     }
00406   }
00407 
00408   /* Return the first available colour */
00409   for (uint i = 0; i < COLOUR_END; i++) {
00410     if (colours[i] != INVALID_COLOUR) return colours[i];
00411   }
00412 
00413   NOT_REACHED();
00414 }
00415 
00416 static void GeneratePresidentName(Company *c)
00417 {
00418   for (;;) {
00419 restart:;
00420     c->president_name_2 = Random();
00421     c->president_name_1 = SPECSTR_PRESIDENT_NAME;
00422 
00423     /* Reserve space for extra unicode character. We need to do this to be able
00424      * to detect too long president name. */
00425     char buffer[MAX_LENGTH_PRESIDENT_NAME_BYTES + MAX_CHAR_LENGTH];
00426     SetDParam(0, c->index);
00427     GetString(buffer, STR_PRESIDENT_NAME, lastof(buffer));
00428     if (strlen(buffer) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) continue;
00429 
00430     Company *cc;
00431     FOR_ALL_COMPANIES(cc) {
00432       if (c != cc) {
00433         /* Reserve extra space so even overlength president names can be compared. */
00434         char buffer2[MAX_LENGTH_PRESIDENT_NAME_BYTES + MAX_CHAR_LENGTH];
00435         SetDParam(0, cc->index);
00436         GetString(buffer2, STR_PRESIDENT_NAME, lastof(buffer2));
00437         if (strcmp(buffer2, buffer) == 0) goto restart;
00438       }
00439     }
00440     return;
00441   }
00442 }
00443 
00444 void ResetCompanyLivery(Company *c)
00445 {
00446   for (LiveryScheme scheme = LS_BEGIN; scheme < LS_END; scheme++) {
00447     c->livery[scheme].in_use  = false;
00448     c->livery[scheme].colour1 = c->colour;
00449     c->livery[scheme].colour2 = c->colour;
00450   }
00451 }
00452 
00460 Company *DoStartupNewCompany(bool is_ai, CompanyID company = INVALID_COMPANY)
00461 {
00462   if (!Company::CanAllocateItem()) return NULL;
00463 
00464   /* we have to generate colour before this company is valid */
00465   Colours colour = GenerateCompanyColour();
00466 
00467   Company *c;
00468   if (company == INVALID_COMPANY) {
00469     c = new Company(STR_SV_UNNAMED, is_ai);
00470   } else {
00471     if (Company::IsValidID(company)) return NULL;
00472     c = new (company) Company(STR_SV_UNNAMED, is_ai);
00473   }
00474 
00475   c->colour = colour;
00476 
00477   ResetCompanyLivery(c);
00478   _company_colours[c->index] = (Colours)c->colour;
00479 
00480   c->money = c->current_loan = 100000;
00481 
00482   c->share_owners[0] = c->share_owners[1] = c->share_owners[2] = c->share_owners[3] = INVALID_OWNER;
00483 
00484   c->avail_railtypes = GetCompanyRailtypes(c->index);
00485   c->avail_roadtypes = GetCompanyRoadtypes(c->index);
00486   c->inaugurated_year = _cur_year;
00487   RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
00488 
00489   SetDefaultCompanySettings(c->index);
00490 
00491   GeneratePresidentName(c);
00492 
00493   SetWindowDirty(WC_GRAPH_LEGEND, 0);
00494   SetWindowDirty(WC_TOOLBAR_MENU, 0);
00495   SetWindowDirty(WC_CLIENT_LIST, 0);
00496 
00497   if (is_ai && (!_networking || _network_server)) AI::StartNew(c->index);
00498 
00499   c->num_engines = CallocT<uint16>(Engine::GetPoolSize());
00500 
00501   return c;
00502 }
00503 
00504 void StartupCompanies()
00505 {
00506   _next_competitor_start = 0;
00507 }
00508 
00509 static void MaybeStartNewCompany()
00510 {
00511 #ifdef ENABLE_NETWORK
00512   if (_networking && Company::GetNumItems() >= _settings_client.network.max_companies) return;
00513 #endif /* ENABLE_NETWORK */
00514 
00515   Company *c;
00516 
00517   /* count number of competitors */
00518   uint n = 0;
00519   FOR_ALL_COMPANIES(c) {
00520     if (c->is_ai) n++;
00521   }
00522 
00523   if (n < (uint)_settings_game.difficulty.max_no_competitors) {
00524     /* Send a command to all clients to start up a new AI.
00525      * Works fine for Multiplayer and Singleplayer */
00526     DoCommandP(0, 1, INVALID_COMPANY, CMD_COMPANY_CTRL);
00527   }
00528 }
00529 
00530 void InitializeCompanies()
00531 {
00532   _company_pool.CleanPool();
00533   _cur_company_tick_index = 0;
00534 }
00535 
00545 static void HandleBankruptcyTakeover(Company *c)
00546 {
00547   /* Amount of time out for each company to take over a company;
00548    * Timeout is a quarter (3 months of 30 days) divided over the
00549    * number of companies. The minimum number of days in a quarter
00550    * is 90: 31 in January, 28 in February and 31 in March.
00551    * Note that the company going bankrupt can't buy itself. */
00552   static const int TAKE_OVER_TIMEOUT = 3 * 30 * DAY_TICKS / (MAX_COMPANIES - 1);
00553 
00554   assert(c->bankrupt_asked != 0);
00555 
00556   /* We're currently asking some company to buy 'us' */
00557   if (c->bankrupt_timeout != 0) {
00558     c->bankrupt_timeout -= MAX_COMPANIES;
00559     if (c->bankrupt_timeout > 0) return;
00560     c->bankrupt_timeout = 0;
00561 
00562     return;
00563   }
00564 
00565   /* Did we ask everyone for bankruptcy? If so, bail out. */
00566   if (c->bankrupt_asked == MAX_UVALUE(CompanyMask)) return;
00567 
00568   Company *c2, *best = NULL;
00569   int32 best_performance = -1;
00570 
00571   /* Ask the company with the highest performance history first */
00572   FOR_ALL_COMPANIES(c2) {
00573     if (c2->bankrupt_asked == 0 && // Don't ask companies going bankrupt themselves
00574         !HasBit(c->bankrupt_asked, c2->index) &&
00575         best_performance < c2->old_economy[1].performance_history) {
00576       best_performance = c2->old_economy[1].performance_history;
00577       best = c2;
00578     }
00579   }
00580 
00581   /* Asked all companies? */
00582   if (best_performance == -1) {
00583     c->bankrupt_asked = MAX_UVALUE(CompanyMask);
00584     return;
00585   }
00586 
00587   SetBit(c->bankrupt_asked, best->index);
00588 
00589   if (IsInteractiveCompany(best->index)) {
00590     c->bankrupt_timeout = TAKE_OVER_TIMEOUT;
00591     ShowBuyCompanyDialog(c->index);
00592     return;
00593   }
00594 
00595   if (best->is_ai) {
00596     AI::NewEvent(best->index, new AIEventCompanyAskMerger(c->index, ClampToI32(c->bankrupt_value)));
00597   }
00598 }
00599 
00600 void OnTick_Companies()
00601 {
00602   if (_game_mode == GM_EDITOR) return;
00603 
00604   Company *c = Company::GetIfValid(_cur_company_tick_index);
00605   if (c != NULL) {
00606     if (c->name_1 != 0) GenerateCompanyName(c);
00607     if (c->bankrupt_asked != 0) HandleBankruptcyTakeover(c);
00608   }
00609 
00610   if (_next_competitor_start == 0) {
00611     _next_competitor_start = AI::GetStartNextTime() * DAY_TICKS;
00612   }
00613 
00614   if (AI::CanStartNew() && _game_mode != GM_MENU && --_next_competitor_start == 0) {
00615     MaybeStartNewCompany();
00616   }
00617 
00618   _cur_company_tick_index = (_cur_company_tick_index + 1) % MAX_COMPANIES;
00619 }
00620 
00621 void CompaniesYearlyLoop()
00622 {
00623   Company *c;
00624 
00625   /* Copy statistics */
00626   FOR_ALL_COMPANIES(c) {
00627     memmove(&c->yearly_expenses[1], &c->yearly_expenses[0], sizeof(c->yearly_expenses) - sizeof(c->yearly_expenses[0]));
00628     memset(&c->yearly_expenses[0], 0, sizeof(c->yearly_expenses[0]));
00629     SetWindowDirty(WC_FINANCES, c->index);
00630   }
00631 
00632   if (_settings_client.gui.show_finances && _local_company != COMPANY_SPECTATOR) {
00633     ShowCompanyFinances(_local_company);
00634     c = Company::Get(_local_company);
00635     if (c->num_valid_stat_ent > 5 && c->old_economy[0].performance_history < c->old_economy[4].performance_history) {
00636       SndPlayFx(SND_01_BAD_YEAR);
00637     } else {
00638       SndPlayFx(SND_00_GOOD_YEAR);
00639     }
00640   }
00641 }
00642 
00654 CommandCost CmdSetAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00655 {
00656   Company *c = Company::GetIfValid(_current_company);
00657   if (c == NULL) return CMD_ERROR;
00658 
00659   EngineID old_engine_type = GB(p2, 0, 16);
00660   EngineID new_engine_type = GB(p2, 16, 16);
00661   GroupID id_g = GB(p1, 16, 16);
00662   CommandCost cost;
00663 
00664   if (!Group::IsValidID(id_g) && !IsAllGroupID(id_g) && !IsDefaultGroupID(id_g)) return CMD_ERROR;
00665   if (new_engine_type != INVALID_ENGINE) {
00666     if (!CheckAutoreplaceValidity(old_engine_type, new_engine_type, _current_company)) return CMD_ERROR;
00667 
00668     cost = AddEngineReplacementForCompany(c, old_engine_type, new_engine_type, id_g, flags);
00669   } else {
00670     cost = RemoveEngineReplacementForCompany(c, old_engine_type, id_g, flags);
00671   }
00672 
00673   if (IsLocalCompany()) InvalidateAutoreplaceWindow(old_engine_type, id_g);
00674 
00675   return cost;
00676 }
00677 
00683 void CompanyNewsInformation::FillData(const Company *c, const Company *other)
00684 {
00685   SetDParam(0, c->index);
00686   GetString(this->company_name, STR_COMPANY_NAME, lastof(this->company_name));
00687 
00688   if (other == NULL) {
00689     *this->other_company_name = '\0';
00690   } else {
00691     SetDParam(0, other->index);
00692     GetString(this->other_company_name, STR_COMPANY_NAME, lastof(this->other_company_name));
00693     c = other;
00694   }
00695 
00696   SetDParam(0, c->index);
00697   GetString(this->president_name, STR_PRESIDENT_NAME_MANAGER, lastof(this->president_name));
00698 
00699   this->colour = c->colour;
00700   this->face = c->face;
00701 
00702 }
00703 
00725 CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00726 {
00727   if (flags & DC_EXEC) _current_company = OWNER_NONE;
00728 
00729   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00730 
00731   switch (p1) {
00732     case 0: { // Create a new company
00733       /* This command is only executed in a multiplayer game */
00734       if (!_networking) return CMD_ERROR;
00735 
00736 #ifdef ENABLE_NETWORK
00737 
00738       /* Joining Client:
00739        * _local_company: COMPANY_SPECTATOR
00740        * cid = clientid
00741        *
00742        * Other client(s)/server:
00743        * _local_company: what they play as
00744        * cid = requested company/company of joining client */
00745       ClientID cid = (ClientID)p2;
00746 
00747       /* Has the network client a correct ClientIndex? */
00748       if (!(flags & DC_EXEC)) return CommandCost();
00749       NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(cid);
00750       if (ci == NULL) return CommandCost();
00751 
00752       /* Delete multiplayer progress bar */
00753       DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00754 
00755       Company *c = DoStartupNewCompany(false);
00756 
00757       /* A new company could not be created, revert to being a spectator */
00758       if (c == NULL) {
00759         if (_network_server) {
00760           ci->client_playas = COMPANY_SPECTATOR;
00761           NetworkUpdateClientInfo(ci->client_id);
00762         }
00763         break;
00764       }
00765 
00766       /* This is the client (or non-dedicated server) who wants a new company */
00767       if (cid == _network_own_client_id) {
00768         assert(_local_company == COMPANY_SPECTATOR);
00769         SetLocalCompany(c->index);
00770         if (!StrEmpty(_settings_client.network.default_company_pass)) {
00771           char *password = _settings_client.network.default_company_pass;
00772           NetworkChangeCompanyPassword(1, &password);
00773         }
00774 
00775         _current_company = _local_company;
00776 
00777         /* Now that we have a new company, broadcast our company settings to
00778          * all clients so everything is in sync */
00779         SyncCompanySettings();
00780 
00781         MarkWholeScreenDirty();
00782       }
00783 
00784       if (_network_server) {
00785         /* XXX - UGLY! p2 (pid) is mis-used to fetch the client-id, done at
00786          * server side in network_server.c:838, function
00787          * DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND) */
00788         CompanyID old_playas = ci->client_playas;
00789         ci->client_playas = c->index;
00790         NetworkUpdateClientInfo(ci->client_id);
00791 
00792         if (Company::IsValidID(ci->client_playas)) {
00793           CompanyID company_backup = _local_company;
00794           _network_company_states[c->index].months_empty = 0;
00795           _network_company_states[c->index].password[0] = '\0';
00796           NetworkServerUpdateCompanyPassworded(ci->client_playas, false);
00797 
00798           /* XXX - When a client joins, we automatically set its name to the
00799            * client's name (for some reason). As it stands now only the server
00800            * knows the client's name, so it needs to send out a "broadcast" to
00801            * do this. To achieve this we send a network command. However, it
00802            * uses _local_company to execute the command as.  To prevent abuse
00803            * (eg. only yourself can change your name/company), we 'cheat' by
00804            * impersonation _local_company as the server. Not the best solution;
00805            * but it works.
00806            * TODO: Perhaps this could be improved by when the client is ready
00807            * with joining to let it send itself the command, and not the server?
00808            * For example in network_client.c:534? */
00809           _local_company = ci->client_playas;
00810           NetworkSend_Command(0, 0, 0, CMD_RENAME_PRESIDENT, NULL, ci->client_name);
00811           _local_company = company_backup;
00812         }
00813 
00814         /* Announce new company on network, if the client was a SPECTATOR before */
00815         if (old_playas == COMPANY_SPECTATOR) {
00816           NetworkServerSendChat(NETWORK_ACTION_COMPANY_NEW, DESTTYPE_BROADCAST, 0, "", ci->client_id, ci->client_playas + 1);
00817         }
00818       }
00819 #endif /* ENABLE_NETWORK */
00820     } break;
00821 
00822     case 1: // Make a new AI company
00823       if (!(flags & DC_EXEC)) return CommandCost();
00824 
00825       if (p2 != INVALID_COMPANY && (p2 >= MAX_COMPANIES || Company::IsValidID(p2))) return CMD_ERROR;
00826       DoStartupNewCompany(true, (CompanyID)p2);
00827       break;
00828 
00829     case 2: { // Delete a company
00830       Company *c = Company::GetIfValid(p2);
00831       if (c == NULL) return CMD_ERROR;
00832 
00833       if (!(flags & DC_EXEC)) return CommandCost();
00834 
00835       /* Delete any open window of the company */
00836       DeleteCompanyWindows(c->index);
00837       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00838       cni->FillData(c);
00839 
00840       /* Show the bankrupt news */
00841       SetDParam(0, STR_NEWS_COMPANY_BANKRUPT_TITLE);
00842       SetDParam(1, STR_NEWS_COMPANY_BANKRUPT_DESCRIPTION);
00843       SetDParamStr(2, cni->company_name);
00844       AddCompanyNewsItem(STR_MESSAGE_NEWS_FORMAT, NS_COMPANY_BANKRUPT, cni);
00845 
00846       /* Remove the company */
00847       ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00848       if (c->is_ai) AI::Stop(c->index);
00849 
00850       CompanyID c_index = c->index;
00851       delete c;
00852       AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00853     } break;
00854 
00855     default: return CMD_ERROR;
00856   }
00857 
00858   return CommandCost();
00859 }
00860 
00869 CommandCost CmdSetCompanyManagerFace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00870 {
00871   CompanyManagerFace cmf = (CompanyManagerFace)p2;
00872 
00873   if (!IsValidCompanyManagerFace(cmf)) return CMD_ERROR;
00874 
00875   if (flags & DC_EXEC) {
00876     Company::Get(_current_company)->face = cmf;
00877     MarkWholeScreenDirty();
00878   }
00879   return CommandCost();
00880 }
00881 
00892 CommandCost CmdSetCompanyColour(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00893 {
00894   if (p2 >= 16) return CMD_ERROR; // max 16 colours
00895 
00896   Colours colour = (Colours)p2;
00897 
00898   LiveryScheme scheme = (LiveryScheme)GB(p1, 0, 8);
00899   byte state = GB(p1, 8, 2);
00900 
00901   if (scheme >= LS_END || state >= 3) return CMD_ERROR;
00902 
00903   Company *c = Company::Get(_current_company);
00904 
00905   /* Ensure no two companies have the same primary colour */
00906   if (scheme == LS_DEFAULT && state == 0) {
00907     const Company *cc;
00908     FOR_ALL_COMPANIES(cc) {
00909       if (cc != c && cc->colour == colour) return CMD_ERROR;
00910     }
00911   }
00912 
00913   if (flags & DC_EXEC) {
00914     switch (state) {
00915       case 0:
00916         c->livery[scheme].colour1 = colour;
00917 
00918         /* If setting the first colour of the default scheme, adjust the
00919          * original and cached company colours too. */
00920         if (scheme == LS_DEFAULT) {
00921           _company_colours[_current_company] = colour;
00922           c->colour = colour;
00923         }
00924         break;
00925 
00926       case 1:
00927         c->livery[scheme].colour2 = colour;
00928         break;
00929 
00930       case 2:
00931         c->livery[scheme].in_use = colour != 0;
00932 
00933         /* Now handle setting the default scheme's in_use flag.
00934          * This is different to the other schemes, as it signifies if any
00935          * scheme is active at all. If this flag is not set, then no
00936          * processing of vehicle types occurs at all, and only the default
00937          * colours will be used. */
00938 
00939         /* If enabling a scheme, set the default scheme to be in use too */
00940         if (colour != 0) {
00941           c->livery[LS_DEFAULT].in_use = true;
00942           break;
00943         }
00944 
00945         /* Else loop through all schemes to see if any are left enabled.
00946          * If not, disable the default scheme too. */
00947         c->livery[LS_DEFAULT].in_use = false;
00948         for (scheme = LS_DEFAULT; scheme < LS_END; scheme++) {
00949           if (c->livery[scheme].in_use) {
00950             c->livery[LS_DEFAULT].in_use = true;
00951             break;
00952           }
00953         }
00954         break;
00955 
00956       default:
00957         break;
00958     }
00959     ResetVehicleColourMap();
00960     MarkWholeScreenDirty();
00961 
00962     /* Company colour data is indirectly cached. */
00963     Vehicle *v;
00964     FOR_ALL_VEHICLES(v) {
00965       if (v->owner == _current_company) v->InvalidateNewGRFCache();
00966     }
00967   }
00968   return CommandCost();
00969 }
00970 
00971 static bool IsUniqueCompanyName(const char *name)
00972 {
00973   const Company *c;
00974 
00975   FOR_ALL_COMPANIES(c) {
00976     if (c->name != NULL && strcmp(c->name, name) == 0) return false;
00977   }
00978 
00979   return true;
00980 }
00981 
00990 CommandCost CmdRenameCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00991 {
00992   bool reset = StrEmpty(text);
00993 
00994   if (!reset) {
00995     if (strlen(text) >= MAX_LENGTH_COMPANY_NAME_BYTES) return CMD_ERROR;
00996     if (!IsUniqueCompanyName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
00997   }
00998 
00999   if (flags & DC_EXEC) {
01000     Company *c = Company::Get(_current_company);
01001     free(c->name);
01002     c->name = reset ? NULL : strdup(text);
01003     MarkWholeScreenDirty();
01004   }
01005 
01006   return CommandCost();
01007 }
01008 
01009 static bool IsUniquePresidentName(const char *name)
01010 {
01011   const Company *c;
01012 
01013   FOR_ALL_COMPANIES(c) {
01014     if (c->president_name != NULL && strcmp(c->president_name, name) == 0) return false;
01015   }
01016 
01017   return true;
01018 }
01019 
01028 CommandCost CmdRenamePresident(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01029 {
01030   bool reset = StrEmpty(text);
01031 
01032   if (!reset) {
01033     if (strlen(text) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) return CMD_ERROR;
01034     if (!IsUniquePresidentName(text)) return_cmd_error(STR_ERROR_NAME_MUST_BE_UNIQUE);
01035   }
01036 
01037   if (flags & DC_EXEC) {
01038     Company *c = Company::Get(_current_company);
01039     free(c->president_name);
01040 
01041     if (reset) {
01042       c->president_name = NULL;
01043     } else {
01044       c->president_name = strdup(text);
01045 
01046       if (c->name_1 == STR_SV_UNNAMED && c->name == NULL) {
01047         char buf[80];
01048 
01049         snprintf(buf, lengthof(buf), "%s Transport", text);
01050         DoCommand(0, 0, 0, DC_EXEC, CMD_RENAME_COMPANY, buf);
01051       }
01052     }
01053 
01054     MarkWholeScreenDirty();
01055   }
01056 
01057   return CommandCost();
01058 }

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