company_cmd.cpp

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00001 /* $Id: company_cmd.cpp 15903 2009-03-30 23:15:05Z rubidium $ */
00002 
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "engine_base.h"
00008 #include "company_func.h"
00009 #include "company_gui.h"
00010 #include "town.h"
00011 #include "news_func.h"
00012 #include "command_func.h"
00013 #include "network/network.h"
00014 #include "network/network_func.h"
00015 #include "network/network_base.h"
00016 #include "ai/ai.hpp"
00017 #include "company_manager_face.h"
00018 #include "group.h"
00019 #include "window_func.h"
00020 #include "tile_map.h"
00021 #include "strings_func.h"
00022 #include "gfx_func.h"
00023 #include "date_func.h"
00024 #include "sound_func.h"
00025 #include "autoreplace_func.h"
00026 #include "autoreplace_gui.h"
00027 #include "string_func.h"
00028 #include "road_func.h"
00029 #include "rail.h"
00030 #include "sprite.h"
00031 #include "oldpool_func.h"
00032 
00033 #include "table/strings.h"
00034 
00035 CompanyByte _local_company;
00036 CompanyByte _current_company;
00037 /* NOSAVE: can be determined from company structs */
00038 Colours _company_colours[MAX_COMPANIES];
00039 CompanyManagerFace _company_manager_face; 
00040 uint _next_competitor_start;              
00041 uint _cur_company_tick_index;             
00042 
00043 DEFINE_OLD_POOL_GENERIC(Company, Company)
00044 
00045 Company::Company(uint16 name_1, bool is_ai) :
00046   name_1(name_1),
00047   location_of_HQ(INVALID_TILE),
00048   is_ai(is_ai)
00049 {
00050   for (uint j = 0; j < 4; j++) this->share_owners[j] = COMPANY_SPECTATOR;
00051 }
00052 
00053 Company::~Company()
00054 {
00055   free(this->name);
00056   free(this->president_name);
00057   free(this->num_engines);
00058 
00059   if (CleaningPool()) return;
00060 
00061   DeleteCompanyWindows(this->index);
00062   this->name_1 = 0;
00063 }
00064 
00071 void SetLocalCompany(CompanyID new_company)
00072 {
00073   /* company could also be COMPANY_SPECTATOR or OWNER_NONE */
00074   assert(IsValidCompanyID(new_company) || new_company == COMPANY_SPECTATOR || new_company == OWNER_NONE);
00075 
00076   _local_company = new_company;
00077 
00078   /* Do not update the settings if we are in the intro GUI */
00079   if (IsValidCompanyID(new_company) && _game_mode != GM_MENU) {
00080     const Company *c = GetCompany(new_company);
00081     _settings_client.gui.autorenew        = c->engine_renew;
00082     _settings_client.gui.autorenew_months = c->engine_renew_months;
00083     _settings_client.gui.autorenew_money  = c->engine_renew_money;
00084     InvalidateWindow(WC_GAME_OPTIONS, 0);
00085   }
00086 
00087   /* Delete any construction windows... */
00088   DeleteConstructionWindows();
00089 
00090   /* ... and redraw the whole screen. */
00091   MarkWholeScreenDirty();
00092 }
00093 
00094 bool IsHumanCompany(CompanyID company)
00095 {
00096   return !GetCompany(company)->is_ai;
00097 }
00098 
00099 
00100 uint16 GetDrawStringCompanyColour(CompanyID company)
00101 {
00102   /* Get the colour for DrawString-subroutines which matches the colour
00103    * of the company */
00104   if (!IsValidCompanyID(company)) return _colour_gradient[COLOUR_WHITE][4] | IS_PALETTE_COLOUR;
00105   return (_colour_gradient[_company_colours[company]][4]) | IS_PALETTE_COLOUR;
00106 }
00107 
00108 void DrawCompanyIcon(CompanyID c, int x, int y)
00109 {
00110   DrawSprite(SPR_PLAYER_ICON, COMPANY_SPRITE_COLOUR(c), x, y);
00111 }
00112 
00119 bool IsValidCompanyManagerFace(CompanyManagerFace cmf)
00120 {
00121   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_GEN_ETHN, GE_WM)) return false;
00122 
00123   GenderEthnicity ge   = (GenderEthnicity)GetCompanyManagerFaceBits(cmf, CMFV_GEN_ETHN, GE_WM);
00124   bool has_moustache   = !HasBit(ge, GENDER_FEMALE) && GetCompanyManagerFaceBits(cmf, CMFV_HAS_MOUSTACHE,   ge) != 0;
00125   bool has_tie_earring = !HasBit(ge, GENDER_FEMALE) || GetCompanyManagerFaceBits(cmf, CMFV_HAS_TIE_EARRING, ge) != 0;
00126   bool has_glasses     = GetCompanyManagerFaceBits(cmf, CMFV_HAS_GLASSES, ge) != 0;
00127 
00128   if (!AreCompanyManagerFaceBitsValid(cmf, CMFV_EYE_COLOUR, ge)) return false;
00129   for (CompanyManagerFaceVariable cmfv = CMFV_CHEEKS; cmfv < CMFV_END; cmfv++) {
00130     switch (cmfv) {
00131       case CMFV_MOUSTACHE:   if (!has_moustache)   continue; break;
00132       case CMFV_LIPS:        // FALL THROUGH
00133       case CMFV_NOSE:        if (has_moustache)    continue; break;
00134       case CMFV_TIE_EARRING: if (!has_tie_earring) continue; break;
00135       case CMFV_GLASSES:     if (!has_glasses)     continue; break;
00136       default: break;
00137     }
00138     if (!AreCompanyManagerFaceBitsValid(cmf, cmfv, ge)) return false;
00139   }
00140 
00141   return true;
00142 }
00143 
00144 void InvalidateCompanyWindows(const Company *company)
00145 {
00146   CompanyID cid = company->index;
00147 
00148   if (cid == _local_company) InvalidateWindow(WC_STATUS_BAR, 0);
00149   InvalidateWindow(WC_FINANCES, cid);
00150 }
00151 
00152 bool CheckCompanyHasMoney(CommandCost cost)
00153 {
00154   if (cost.GetCost() > 0) {
00155     CompanyID company = _current_company;
00156     if (IsValidCompanyID(company) && cost.GetCost() > GetCompany(company)->money) {
00157       SetDParam(0, cost.GetCost());
00158       _error_message = STR_0003_NOT_ENOUGH_CASH_REQUIRES;
00159       return false;
00160     }
00161   }
00162   return true;
00163 }
00164 
00165 static void SubtractMoneyFromAnyCompany(Company *c, CommandCost cost)
00166 {
00167   if (cost.GetCost() == 0) return;
00168   assert(cost.GetExpensesType() != INVALID_EXPENSES);
00169 
00170   c->money -= cost.GetCost();
00171   c->yearly_expenses[0][cost.GetExpensesType()] += cost.GetCost();
00172 
00173   if (HasBit(1 << EXPENSES_TRAIN_INC    |
00174              1 << EXPENSES_ROADVEH_INC  |
00175              1 << EXPENSES_AIRCRAFT_INC |
00176              1 << EXPENSES_SHIP_INC, cost.GetExpensesType())) {
00177     c->cur_economy.income -= cost.GetCost();
00178   } else if (HasBit(1 << EXPENSES_TRAIN_RUN    |
00179                     1 << EXPENSES_ROADVEH_RUN  |
00180                     1 << EXPENSES_AIRCRAFT_RUN |
00181                     1 << EXPENSES_SHIP_RUN     |
00182                     1 << EXPENSES_PROPERTY     |
00183                     1 << EXPENSES_LOAN_INT, cost.GetExpensesType())) {
00184     c->cur_economy.expenses -= cost.GetCost();
00185   }
00186 
00187   InvalidateCompanyWindows(c);
00188 }
00189 
00190 void SubtractMoneyFromCompany(CommandCost cost)
00191 {
00192   CompanyID cid = _current_company;
00193 
00194   if (IsValidCompanyID(cid)) SubtractMoneyFromAnyCompany(GetCompany(cid), cost);
00195 }
00196 
00197 void SubtractMoneyFromCompanyFract(CompanyID company, CommandCost cst)
00198 {
00199   Company *c = GetCompany(company);
00200   byte m = c->money_fraction;
00201   Money cost = cst.GetCost();
00202 
00203   c->money_fraction = m - (byte)cost;
00204   cost >>= 8;
00205   if (c->money_fraction > m) cost++;
00206   if (cost != 0) SubtractMoneyFromAnyCompany(c, CommandCost(cst.GetExpensesType(), cost));
00207 }
00208 
00209 void GetNameOfOwner(Owner owner, TileIndex tile)
00210 {
00211   SetDParam(2, owner);
00212 
00213   if (owner != OWNER_TOWN) {
00214     if (!IsValidCompanyID(owner)) {
00215       SetDParam(0, STR_0150_SOMEONE);
00216     } else {
00217       SetDParam(0, STR_COMPANY_NAME);
00218       SetDParam(1, owner);
00219     }
00220   } else {
00221     const Town *t = ClosestTownFromTile(tile, UINT_MAX);
00222 
00223     SetDParam(0, STR_TOWN);
00224     SetDParam(1, t->index);
00225   }
00226 }
00227 
00228 
00229 bool CheckOwnership(Owner owner)
00230 {
00231   assert(owner < OWNER_END);
00232 
00233   if (owner == _current_company) return true;
00234   _error_message = STR_013B_OWNED_BY;
00235   GetNameOfOwner(owner, 0);
00236   return false;
00237 }
00238 
00239 bool CheckTileOwnership(TileIndex tile)
00240 {
00241   Owner owner = GetTileOwner(tile);
00242 
00243   assert(owner < OWNER_END);
00244 
00245   if (owner == _current_company) return true;
00246   _error_message = STR_013B_OWNED_BY;
00247 
00248   /* no need to get the name of the owner unless we're the local company (saves some time) */
00249   if (IsLocalCompany()) GetNameOfOwner(owner, tile);
00250   return false;
00251 }
00252 
00253 static void GenerateCompanyName(Company *c)
00254 {
00255   TileIndex tile;
00256   Town *t;
00257   StringID str;
00258   Company *cc;
00259   uint32 strp;
00260   char buffer[100];
00261 
00262   if (c->name_1 != STR_SV_UNNAMED) return;
00263 
00264   tile = c->last_build_coordinate;
00265   if (tile == 0) return;
00266 
00267   t = ClosestTownFromTile(tile, UINT_MAX);
00268 
00269   if (t->name == NULL && IsInsideMM(t->townnametype, SPECSTR_TOWNNAME_START, SPECSTR_TOWNNAME_LAST + 1)) {
00270     str = t->townnametype - SPECSTR_TOWNNAME_START + SPECSTR_PLAYERNAME_START;
00271     strp = t->townnameparts;
00272 
00273 verify_name:;
00274     /* No companies must have this name already */
00275     FOR_ALL_COMPANIES(cc) {
00276       if (cc->name_1 == str && cc->name_2 == strp) goto bad_town_name;
00277     }
00278 
00279     GetString(buffer, str, lastof(buffer));
00280     if (strlen(buffer) >= MAX_LENGTH_COMPANY_NAME_BYTES) goto bad_town_name;
00281 
00282 set_name:;
00283     c->name_1 = str;
00284     c->name_2 = strp;
00285 
00286     MarkWholeScreenDirty();
00287 
00288     if (!IsHumanCompany(c->index)) {
00289       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00290       cni->FillData(c);
00291       SetDParam(0, STR_705E_NEW_TRANSPORT_COMPANY_LAUNCHED);
00292       SetDParam(1, STR_705F_STARTS_CONSTRUCTION_NEAR);
00293       SetDParamStr(2, cni->company_name);
00294       SetDParam(3, t->index);
00295       AddNewsItem(STR_02B6, NS_COMPANY_NEW, c->last_build_coordinate, 0, cni);
00296     }
00297     AI::BroadcastNewEvent(new AIEventCompanyNew(c->index), c->index);
00298     return;
00299   }
00300 bad_town_name:;
00301 
00302   if (c->president_name_1 == SPECSTR_PRESIDENT_NAME) {
00303     str = SPECSTR_ANDCO_NAME;
00304     strp = c->president_name_2;
00305     goto set_name;
00306   } else {
00307     str = SPECSTR_ANDCO_NAME;
00308     strp = Random();
00309     goto verify_name;
00310   }
00311 }
00312 
00313 static const byte _colour_sort[COLOUR_END] = {2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 2, 3, 1, 1, 1};
00314 static const Colours _similar_colour[COLOUR_END][2] = {
00315   { COLOUR_BLUE,       COLOUR_LIGHT_BLUE }, // COLOUR_DARK_BLUE
00316   { COLOUR_GREEN,      COLOUR_DARK_GREEN }, // COLOUR_PALE_GREEN
00317   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_PINK
00318   { COLOUR_ORANGE,     INVALID_COLOUR    }, // COLOUR_YELLOW
00319   { INVALID_COLOUR,    INVALID_COLOUR    }, // COLOUR_RED
00320   { COLOUR_DARK_BLUE,  COLOUR_BLUE       }, // COLOUR_LIGHT_BLUE
00321   { COLOUR_PALE_GREEN, COLOUR_DARK_GREEN }, // COLOUR_GREEN
00322   { COLOUR_PALE_GREEN, COLOUR_GREEN      }, // COLOUR_DARK_GREEN
00323   { COLOUR_DARK_BLUE,  COLOUR_LIGHT_BLUE }, // COLOUR_BLUE
00324   { COLOUR_BROWN,      COLOUR_ORANGE     }, // COLOUR_CREAM
00325   { COLOUR_PURPLE,     INVALID_COLOUR    }, // COLOUR_MAUVE
00326   { COLOUR_MAUVE,      INVALID_COLOUR    }, // COLOUR_PURPLE
00327   { COLOUR_YELLOW,     COLOUR_CREAM      }, // COLOUR_ORANGE
00328   { COLOUR_CREAM,      INVALID_COLOUR    }, // COLOUR_BROWN
00329   { COLOUR_WHITE,      INVALID_COLOUR    }, // COLOUR_GREY
00330   { COLOUR_GREY,       INVALID_COLOUR    }, // COLOUR_WHITE
00331 };
00332 
00333 static Colours GenerateCompanyColour()
00334 {
00335   Colours colours[COLOUR_END];
00336 
00337   /* Initialize array */
00338   for (uint i = 0; i < COLOUR_END; i++) colours[i] = (Colours)i;
00339 
00340   /* And randomize it */
00341   for (uint i = 0; i < 100; i++) {
00342     uint r = Random();
00343     Swap(colours[GB(r, 0, 4)], colours[GB(r, 4, 4)]);
00344   }
00345 
00346   /* Bubble sort it according to the values in table 1 */
00347   for (uint i = 0; i < COLOUR_END; i++) {
00348     for (uint j = 1; j < COLOUR_END; j++) {
00349       if (_colour_sort[colours[j - 1]] < _colour_sort[colours[j]]) {
00350         Swap(colours[j - 1], colours[j]);
00351       }
00352     }
00353   };
00354 
00355   /* Move the colours that look similar to each company's colour to the side */
00356   Company *c;
00357   FOR_ALL_COMPANIES(c) {
00358     Colours pcolour = (Colours)c->colour;
00359 
00360     for (uint i = 0; i < COLOUR_END; i++) {
00361       if (colours[i] == pcolour) {
00362         colours[i] = INVALID_COLOUR;
00363         break;
00364       }
00365     }
00366 
00367     for (uint j = 0; j < 2; j++) {
00368       Colours similar = _similar_colour[pcolour][j];
00369       if (similar == INVALID_COLOUR) break;
00370 
00371       for (uint i = 1; i < COLOUR_END; i++) {
00372         if (colours[i - 1] == similar) Swap(colours[i - 1], colours[i]);
00373       }
00374     }
00375   }
00376 
00377   /* Return the first available colour */
00378   for (uint i = 0; i < COLOUR_END; i++) {
00379     if (colours[i] != INVALID_COLOUR) return colours[i];
00380   }
00381 
00382   NOT_REACHED();
00383 }
00384 
00385 static void GeneratePresidentName(Company *c)
00386 {
00387   for (;;) {
00388 restart:;
00389     c->president_name_2 = Random();
00390     c->president_name_1 = SPECSTR_PRESIDENT_NAME;
00391 
00392     char buffer[MAX_LENGTH_PRESIDENT_NAME_BYTES + 1];
00393     SetDParam(0, c->index);
00394     GetString(buffer, STR_PRESIDENT_NAME, lastof(buffer));
00395     if (strlen(buffer) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) continue;
00396 
00397     Company *cc;
00398     FOR_ALL_COMPANIES(cc) {
00399       if (c != cc) {
00400         char buffer2[MAX_LENGTH_PRESIDENT_NAME_BYTES + 2];
00401         SetDParam(0, cc->index);
00402         GetString(buffer2, STR_PRESIDENT_NAME, lastof(buffer2));
00403         if (strcmp(buffer2, buffer) == 0) goto restart;
00404       }
00405     }
00406     return;
00407   }
00408 }
00409 
00410 void ResetCompanyLivery(Company *c)
00411 {
00412   for (LiveryScheme scheme = LS_BEGIN; scheme < LS_END; scheme++) {
00413     c->livery[scheme].in_use  = false;
00414     c->livery[scheme].colour1 = c->colour;
00415     c->livery[scheme].colour2 = c->colour;
00416   }
00417 }
00418 
00425 Company *DoStartupNewCompany(bool is_ai)
00426 {
00427   if (ActiveCompanyCount() == MAX_COMPANIES || !Company::CanAllocateItem()) return NULL;
00428 
00429   /* we have to generate colour before this company is valid */
00430   Colours colour = GenerateCompanyColour();
00431 
00432   Company *c = new Company(STR_SV_UNNAMED, is_ai);
00433 
00434   c->colour = colour;
00435 
00436   ResetCompanyLivery(c);
00437   _company_colours[c->index] = (Colours)c->colour;
00438 
00439   c->money = c->current_loan = 100000;
00440 
00441   c->share_owners[0] = c->share_owners[1] = c->share_owners[2] = c->share_owners[3] = INVALID_OWNER;
00442 
00443   c->avail_railtypes = GetCompanyRailtypes(c->index);
00444   c->avail_roadtypes = GetCompanyRoadtypes(c->index);
00445   c->inaugurated_year = _cur_year;
00446   RandomCompanyManagerFaceBits(c->face, (GenderEthnicity)Random(), false); // create a random company manager face
00447 
00448   /* Engine renewal settings */
00449   c->engine_renew_list = NULL;
00450   c->renew_keep_length = false;
00451   c->engine_renew = _settings_client.gui.autorenew;
00452   c->engine_renew_months = _settings_client.gui.autorenew_months;
00453   c->engine_renew_money = _settings_client.gui.autorenew_money;
00454 
00455   GeneratePresidentName(c);
00456 
00457   InvalidateWindow(WC_GRAPH_LEGEND, 0);
00458   InvalidateWindow(WC_TOOLBAR_MENU, 0);
00459   InvalidateWindow(WC_CLIENT_LIST, 0);
00460 
00461   if (is_ai && (!_networking || _network_server)) AI::StartNew(c->index);
00462 
00463   c->num_engines = CallocT<uint16>(GetEnginePoolSize());
00464 
00465   return c;
00466 }
00467 
00468 void StartupCompanies()
00469 {
00470   _next_competitor_start = 0;
00471 }
00472 
00473 static void MaybeStartNewCompany()
00474 {
00475 #ifdef ENABLE_NETWORK
00476   if (_networking && ActiveCompanyCount() >= _settings_client.network.max_companies) return;
00477 #endif /* ENABLE_NETWORK */
00478 
00479   Company *c;
00480 
00481   /* count number of competitors */
00482   uint n = 0;
00483   FOR_ALL_COMPANIES(c) {
00484     if (c->is_ai) n++;
00485   }
00486 
00487   if (n < (uint)_settings_game.difficulty.max_no_competitors) {
00488     /* Send a command to all clients to start up a new AI.
00489      * Works fine for Multiplayer and Singleplayer */
00490     DoCommandP(0, 1, 0, CMD_COMPANY_CTRL);
00491   }
00492 }
00493 
00494 void InitializeCompanies()
00495 {
00496   _Company_pool.CleanPool();
00497   _Company_pool.AddBlockToPool();
00498   _cur_company_tick_index = 0;
00499 }
00500 
00501 void OnTick_Companies()
00502 {
00503   if (_game_mode == GM_EDITOR) return;
00504 
00505   if (IsValidCompanyID((CompanyID)_cur_company_tick_index)) {
00506     Company *c = GetCompany((CompanyID)_cur_company_tick_index);
00507     if (c->name_1 != 0) GenerateCompanyName(c);
00508   }
00509 
00510   if (_next_competitor_start == 0) {
00511     _next_competitor_start = AI::GetStartNextTime() * DAY_TICKS;
00512   }
00513 
00514   if (AI::CanStartNew() && _game_mode != GM_MENU && --_next_competitor_start == 0) {
00515     MaybeStartNewCompany();
00516   }
00517 
00518   _cur_company_tick_index = (_cur_company_tick_index + 1) % MAX_COMPANIES;
00519 }
00520 
00521 void CompaniesYearlyLoop()
00522 {
00523   Company *c;
00524 
00525   /* Copy statistics */
00526   FOR_ALL_COMPANIES(c) {
00527     memmove(&c->yearly_expenses[1], &c->yearly_expenses[0], sizeof(c->yearly_expenses) - sizeof(c->yearly_expenses[0]));
00528     memset(&c->yearly_expenses[0], 0, sizeof(c->yearly_expenses[0]));
00529     InvalidateWindow(WC_FINANCES, c->index);
00530   }
00531 
00532   if (_settings_client.gui.show_finances && _local_company != COMPANY_SPECTATOR) {
00533     ShowCompanyFinances(_local_company);
00534     c = GetCompany(_local_company);
00535     if (c->num_valid_stat_ent > 5 && c->old_economy[0].performance_history < c->old_economy[4].performance_history) {
00536       SndPlayFx(SND_01_BAD_YEAR);
00537     } else {
00538       SndPlayFx(SND_00_GOOD_YEAR);
00539     }
00540   }
00541 }
00542 
00571 CommandCost CmdSetAutoReplace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00572 {
00573   if (!IsValidCompanyID(_current_company)) return CMD_ERROR;
00574 
00575   Company *c = GetCompany(_current_company);
00576   switch (GB(p1, 0, 3)) {
00577     case 0:
00578       if (c->engine_renew == HasBit(p2, 0)) return CMD_ERROR;
00579 
00580       if (flags & DC_EXEC) {
00581         c->engine_renew = HasBit(p2, 0);
00582         if (IsLocalCompany()) {
00583           _settings_client.gui.autorenew = c->engine_renew;
00584           InvalidateWindow(WC_GAME_OPTIONS, 0);
00585         }
00586       }
00587       break;
00588 
00589     case 1:
00590       if (Clamp((int16)p2, -12, 12) != (int16)p2) return CMD_ERROR;
00591       if (c->engine_renew_months == (int16)p2) return CMD_ERROR;
00592 
00593       if (flags & DC_EXEC) {
00594         c->engine_renew_months = (int16)p2;
00595         if (IsLocalCompany()) {
00596           _settings_client.gui.autorenew_months = c->engine_renew_months;
00597           InvalidateWindow(WC_GAME_OPTIONS, 0);
00598         }
00599       }
00600       break;
00601 
00602     case 2:
00603       if (ClampU(p2, 0, 2000000) != p2) return CMD_ERROR;
00604       if (c->engine_renew_money == p2) return CMD_ERROR;
00605 
00606       if (flags & DC_EXEC) {
00607         c->engine_renew_money = p2;
00608         if (IsLocalCompany()) {
00609           _settings_client.gui.autorenew_money = c->engine_renew_money;
00610           InvalidateWindow(WC_GAME_OPTIONS, 0);
00611         }
00612       }
00613       break;
00614 
00615     case 3: {
00616       EngineID old_engine_type = GB(p2, 0, 16);
00617       EngineID new_engine_type = GB(p2, 16, 16);
00618       GroupID id_g = GB(p1, 16, 16);
00619       CommandCost cost;
00620 
00621       if (!IsValidGroupID(id_g) && !IsAllGroupID(id_g) && !IsDefaultGroupID(id_g)) return CMD_ERROR;
00622       if (new_engine_type != INVALID_ENGINE) {
00623         if (!CheckAutoreplaceValidity(old_engine_type, new_engine_type, _current_company)) return CMD_ERROR;
00624 
00625         cost = AddEngineReplacementForCompany(c, old_engine_type, new_engine_type, id_g, flags);
00626       } else {
00627         cost = RemoveEngineReplacementForCompany(c, old_engine_type, id_g, flags);
00628       }
00629 
00630       if (IsLocalCompany()) InvalidateAutoreplaceWindow(old_engine_type, id_g);
00631 
00632       return cost;
00633     }
00634 
00635     case 4:
00636       if (Clamp((int16)GB(p1, 16, 16), -12, 12) != (int16)GB(p1, 16, 16)) return CMD_ERROR;
00637       if (ClampU(p2, 0, 2000000) != p2) return CMD_ERROR;
00638 
00639       if (flags & DC_EXEC) {
00640         c->engine_renew = HasBit(p1, 15);
00641         c->engine_renew_months = (int16)GB(p1, 16, 16);
00642         c->engine_renew_money = p2;
00643 
00644         if (IsLocalCompany()) {
00645           _settings_client.gui.autorenew = c->engine_renew;
00646           _settings_client.gui.autorenew_months = c->engine_renew_months;
00647           _settings_client.gui.autorenew_money = c->engine_renew_money;
00648           InvalidateWindow(WC_GAME_OPTIONS, 0);
00649         }
00650       }
00651       break;
00652 
00653     case 5:
00654       if (c->renew_keep_length == HasBit(p2, 0)) return CMD_ERROR;
00655 
00656       if (flags & DC_EXEC) {
00657         c->renew_keep_length = HasBit(p2, 0);
00658         if (IsLocalCompany()) {
00659           InvalidateWindow(WC_REPLACE_VEHICLE, VEH_TRAIN);
00660         }
00661       }
00662     break;
00663   }
00664 
00665   return CommandCost();
00666 }
00667 
00673 void CompanyNewsInformation::FillData(const Company *c, const Company *other)
00674 {
00675   SetDParam(0, c->index);
00676   GetString(this->company_name, STR_COMPANY_NAME, lastof(this->company_name));
00677 
00678   if (other == NULL) {
00679     *this->other_company_name = '\0';
00680   } else {
00681     SetDParam(0, other->index);
00682     GetString(this->other_company_name, STR_COMPANY_NAME, lastof(this->other_company_name));
00683     c = other;
00684   }
00685 
00686   SetDParam(0, c->index);
00687   GetString(this->president_name, STR_7058_PRESIDENT, lastof(this->president_name));
00688 
00689   this->colour = c->colour;
00690   this->face = c->face;
00691 
00692 }
00693 
00714 CommandCost CmdCompanyCtrl(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00715 {
00716   if (flags & DC_EXEC) _current_company = OWNER_NONE;
00717 
00718   InvalidateWindowData(WC_COMPANY_LEAGUE, 0, 0);
00719 
00720   switch (p1) {
00721     case 0: { // Create a new company
00722       /* This command is only executed in a multiplayer game */
00723       if (!_networking) return CMD_ERROR;
00724 
00725 #ifdef ENABLE_NETWORK
00726 
00727       /* Joining Client:
00728        * _local_company: COMPANY_SPECTATOR
00729        * _network_playas/cid = requested company/clientid
00730        *
00731        * Other client(s)/server:
00732        * _local_company/_network_playas: what they play as
00733        * cid = requested company/company of joining client */
00734       ClientID cid = (ClientID)p2;
00735 
00736       /* Has the network client a correct ClientIndex? */
00737       if (!(flags & DC_EXEC)) return CommandCost();
00738       NetworkClientInfo *ci = NetworkFindClientInfoFromClientID(cid);
00739       if (ci == NULL) return CommandCost();
00740 
00741       /* Delete multiplayer progress bar */
00742       DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
00743 
00744       Company *c = DoStartupNewCompany(false);
00745 
00746       /* A new company could not be created, revert to being a spectator */
00747       if (c == NULL) {
00748         if (_network_server) {
00749           ci->client_playas = COMPANY_SPECTATOR;
00750           NetworkUpdateClientInfo(ci->client_id);
00751         } else if (_local_company == COMPANY_SPECTATOR) {
00752           _network_playas = COMPANY_SPECTATOR;
00753         }
00754         break;
00755       }
00756 
00757       /* This is the client (or non-dedicated server) who wants a new company */
00758       if (cid == _network_own_client_id) {
00759         assert(_local_company == COMPANY_SPECTATOR);
00760         SetLocalCompany(c->index);
00761         if (!StrEmpty(_settings_client.network.default_company_pass)) {
00762           char *password = _settings_client.network.default_company_pass;
00763           NetworkChangeCompanyPassword(1, &password);
00764         }
00765 
00766         _current_company = _local_company;
00767 
00768         /* Now that we have a new company, broadcast our autorenew settings to
00769          * all clients so everything is in sync */
00770         NetworkSend_Command(0,
00771           (_settings_client.gui.autorenew << 15 ) | (_settings_client.gui.autorenew_months << 16) | 4,
00772           _settings_client.gui.autorenew_money,
00773           CMD_SET_AUTOREPLACE,
00774           NULL,
00775           NULL
00776         );
00777 
00778         MarkWholeScreenDirty();
00779       }
00780 
00781       if (_network_server) {
00782         /* XXX - UGLY! p2 (pid) is mis-used to fetch the client-id, done at
00783          * server side in network_server.c:838, function
00784          * DEF_SERVER_RECEIVE_COMMAND(PACKET_CLIENT_COMMAND) */
00785         CompanyID old_playas = ci->client_playas;
00786         ci->client_playas = c->index;
00787         NetworkUpdateClientInfo(ci->client_id);
00788 
00789         if (IsValidCompanyID(ci->client_playas)) {
00790           CompanyID company_backup = _local_company;
00791           _network_company_states[c->index].months_empty = 0;
00792           _network_company_states[c->index].password[0] = '\0';
00793           NetworkServerUpdateCompanyPassworded(ci->client_playas, false);
00794 
00795           /* XXX - When a client joins, we automatically set its name to the
00796            * client's name (for some reason). As it stands now only the server
00797            * knows the client's name, so it needs to send out a "broadcast" to
00798            * do this. To achieve this we send a network command. However, it
00799            * uses _local_company to execute the command as.  To prevent abuse
00800            * (eg. only yourself can change your name/company), we 'cheat' by
00801            * impersonation _local_company as the server. Not the best solution;
00802            * but it works.
00803            * TODO: Perhaps this could be improved by when the client is ready
00804            * with joining to let it send itself the command, and not the server?
00805            * For example in network_client.c:534? */
00806           _local_company = ci->client_playas;
00807           NetworkSend_Command(0, 0, 0, CMD_RENAME_PRESIDENT, NULL, ci->client_name);
00808           _local_company = company_backup;
00809         }
00810 
00811         /* Announce new company on network, if the client was a SPECTATOR before */
00812         if (old_playas == COMPANY_SPECTATOR) {
00813           NetworkServerSendChat(NETWORK_ACTION_COMPANY_NEW, DESTTYPE_BROADCAST, 0, "", ci->client_id, ci->client_playas + 1);
00814         }
00815       }
00816 #endif /* ENABLE_NETWORK */
00817     } break;
00818 
00819     case 1: // Make a new AI company
00820       if (!(flags & DC_EXEC)) return CommandCost();
00821 
00822       DoStartupNewCompany(true);
00823       break;
00824 
00825     case 2: { // Delete a company
00826       Company *c;
00827 
00828       if (!IsValidCompanyID((CompanyID)p2)) return CMD_ERROR;
00829 
00830       if (!(flags & DC_EXEC)) return CommandCost();
00831 
00832       c = GetCompany((CompanyID)p2);
00833 
00834       /* Delete any open window of the company */
00835       DeleteCompanyWindows(c->index);
00836       CompanyNewsInformation *cni = MallocT<CompanyNewsInformation>(1);
00837       cni->FillData(c);
00838 
00839       /* Show the bankrupt news */
00840       SetDParam(0, STR_705C_BANKRUPT);
00841       SetDParam(1, STR_705D_HAS_BEEN_CLOSED_DOWN_BY);
00842       SetDParamStr(2, cni->company_name);
00843       AddNewsItem(STR_02B6, NS_COMPANY_BANKRUPT, 0, 0, cni);
00844 
00845       /* Remove the company */
00846       ChangeOwnershipOfCompanyItems(c->index, INVALID_OWNER);
00847       if (!IsHumanCompany(c->index)) AI::Stop(c->index);
00848 
00849       CompanyID c_index = c->index;
00850       delete c;
00851       AI::BroadcastNewEvent(new AIEventCompanyBankrupt(c_index));
00852     } break;
00853 
00854     case 3: { // Merge a company (#1) into another company (#2), elimination company #1
00855       CompanyID cid_old = (CompanyID)GB(p2,  0, 16);
00856       CompanyID cid_new = (CompanyID)GB(p2, 16, 16);
00857 
00858       if (!IsValidCompanyID(cid_old) || !IsValidCompanyID(cid_new)) return CMD_ERROR;
00859 
00860       if (!(flags & DC_EXEC)) return CMD_ERROR;
00861 
00862       ChangeOwnershipOfCompanyItems(cid_old, cid_new);
00863       delete GetCompany(cid_old);
00864     } break;
00865 
00866     default: return CMD_ERROR;
00867   }
00868 
00869   return CommandCost();
00870 }

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