misc_cmd.cpp

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00001 /* $Id: misc_cmd.cpp 15617 2009-03-04 23:32:23Z rubidium $ */
00002 
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "command_func.h"
00008 #include "economy_func.h"
00009 #include "window_func.h"
00010 #include "textbuf_gui.h"
00011 #include "network/network.h"
00012 #include "company_manager_face.h"
00013 #include "strings_func.h"
00014 #include "gfx_func.h"
00015 #include "functions.h"
00016 #include "vehicle_func.h"
00017 #include "string_func.h"
00018 #include "company_func.h"
00019 #include "company_base.h"
00020 #include "company_gui.h"
00021 #include "settings_type.h"
00022 #include "vehicle_base.h"
00023 
00024 #include "table/strings.h"
00025 
00032 CommandCost CmdSetCompanyManagerFace(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00033 {
00034   CompanyManagerFace cmf = (CompanyManagerFace)p2;
00035 
00036   if (!IsValidCompanyManagerFace(cmf)) return CMD_ERROR;
00037 
00038   if (flags & DC_EXEC) {
00039     GetCompany(_current_company)->face = cmf;
00040     MarkWholeScreenDirty();
00041   }
00042   return CommandCost();
00043 }
00044 
00053 CommandCost CmdSetCompanyColour(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00054 {
00055   if (p2 >= 16) return CMD_ERROR; // max 16 colours
00056 
00057   Colours colour = (Colours)p2;
00058 
00059   LiveryScheme scheme = (LiveryScheme)GB(p1, 0, 8);
00060   byte state = GB(p1, 8, 2);
00061 
00062   if (scheme >= LS_END || state >= 3) return CMD_ERROR;
00063 
00064   Company *c = GetCompany(_current_company);
00065 
00066   /* Ensure no two companies have the same primary colour */
00067   if (scheme == LS_DEFAULT && state == 0) {
00068     const Company *cc;
00069     FOR_ALL_COMPANIES(cc) {
00070       if (cc != c && cc->colour == colour) return CMD_ERROR;
00071     }
00072   }
00073 
00074   if (flags & DC_EXEC) {
00075     switch (state) {
00076       case 0:
00077         c->livery[scheme].colour1 = colour;
00078 
00079         /* If setting the first colour of the default scheme, adjust the
00080          * original and cached company colours too. */
00081         if (scheme == LS_DEFAULT) {
00082           _company_colours[_current_company] = colour;
00083           c->colour = colour;
00084         }
00085         break;
00086 
00087       case 1:
00088         c->livery[scheme].colour2 = colour;
00089         break;
00090 
00091       case 2:
00092         c->livery[scheme].in_use = colour != 0;
00093 
00094         /* Now handle setting the default scheme's in_use flag.
00095          * This is different to the other schemes, as it signifies if any
00096          * scheme is active at all. If this flag is not set, then no
00097          * processing of vehicle types occurs at all, and only the default
00098          * colours will be used. */
00099 
00100         /* If enabling a scheme, set the default scheme to be in use too */
00101         if (colour != 0) {
00102           c->livery[LS_DEFAULT].in_use = true;
00103           break;
00104         }
00105 
00106         /* Else loop through all schemes to see if any are left enabled.
00107          * If not, disable the default scheme too. */
00108         c->livery[LS_DEFAULT].in_use = false;
00109         for (scheme = LS_DEFAULT; scheme < LS_END; scheme++) {
00110           if (c->livery[scheme].in_use) {
00111             c->livery[LS_DEFAULT].in_use = true;
00112             break;
00113           }
00114         }
00115         break;
00116 
00117       default:
00118         break;
00119     }
00120     ResetVehicleColourMap();
00121     MarkWholeScreenDirty();
00122 
00123     /* Company colour data is indirectly cached. */
00124     Vehicle *v;
00125     FOR_ALL_VEHICLES(v) {
00126       if (v->owner == _current_company) v->cache_valid = 0;
00127     }
00128   }
00129   return CommandCost();
00130 }
00131 
00140 CommandCost CmdIncreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00141 {
00142   Company *c = GetCompany(_current_company);
00143 
00144   if (c->current_loan >= _economy.max_loan) {
00145     SetDParam(0, _economy.max_loan);
00146     return_cmd_error(STR_702B_MAXIMUM_PERMITTED_LOAN);
00147   }
00148 
00149   Money loan;
00150   switch (p2) {
00151     default: return CMD_ERROR; // Invalid method
00152     case 0: // Take some extra loan
00153       loan = LOAN_INTERVAL;
00154       break;
00155     case 1: // Take a loan as big as possible
00156       loan = _economy.max_loan - c->current_loan;
00157       break;
00158     case 2: // Take the given amount of loan
00159       if ((((int32)p1 < LOAN_INTERVAL) || c->current_loan + (int32)p1 > _economy.max_loan || (p1 % LOAN_INTERVAL) != 0)) return CMD_ERROR;
00160       loan = p1;
00161       break;
00162   }
00163 
00164   /* Overflow protection */
00165   if (c->money + c->current_loan + loan < c->money) return CMD_ERROR;
00166 
00167   if (flags & DC_EXEC) {
00168     c->money        += loan;
00169     c->current_loan += loan;
00170     InvalidateCompanyWindows(c);
00171   }
00172 
00173   return CommandCost(EXPENSES_OTHER);
00174 }
00175 
00184 CommandCost CmdDecreaseLoan(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00185 {
00186   Company *c = GetCompany(_current_company);
00187 
00188   if (c->current_loan == 0) return_cmd_error(STR_702D_LOAN_ALREADY_REPAYED);
00189 
00190   Money loan;
00191   switch (p2) {
00192     default: return CMD_ERROR; // Invalid method
00193     case 0: // Pay back one step
00194       loan = min(c->current_loan, (Money)LOAN_INTERVAL);
00195       break;
00196     case 1: // Pay back as much as possible
00197       loan = max(min(c->current_loan, c->money), (Money)LOAN_INTERVAL);
00198       loan -= loan % LOAN_INTERVAL;
00199       break;
00200     case 2: // Repay the given amount of loan
00201       if ((p1 % LOAN_INTERVAL != 0) || ((int32)p1 < LOAN_INTERVAL)) return CMD_ERROR; // Invalid amount to loan
00202       loan = p1;
00203       break;
00204   }
00205 
00206   if (c->money < loan) {
00207     SetDParam(0, loan);
00208     return_cmd_error(STR_702E_REQUIRED);
00209   }
00210 
00211   if (flags & DC_EXEC) {
00212     c->money        -= loan;
00213     c->current_loan -= loan;
00214     InvalidateCompanyWindows(c);
00215   }
00216   return CommandCost();
00217 }
00218 
00219 static bool IsUniqueCompanyName(const char *name)
00220 {
00221   const Company *c;
00222 
00223   FOR_ALL_COMPANIES(c) {
00224     if (c->name != NULL && strcmp(c->name, name) == 0) return false;
00225   }
00226 
00227   return true;
00228 }
00229 
00236 CommandCost CmdRenameCompany(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00237 {
00238   bool reset = StrEmpty(text);
00239 
00240   if (!reset) {
00241     if (strlen(text) >= MAX_LENGTH_COMPANY_NAME_BYTES) return CMD_ERROR;
00242     if (!IsUniqueCompanyName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
00243   }
00244 
00245   if (flags & DC_EXEC) {
00246     Company *c = GetCompany(_current_company);
00247     free(c->name);
00248     c->name = reset ? NULL : strdup(text);
00249     MarkWholeScreenDirty();
00250   }
00251 
00252   return CommandCost();
00253 }
00254 
00255 static bool IsUniquePresidentName(const char *name)
00256 {
00257   const Company *c;
00258 
00259   FOR_ALL_COMPANIES(c) {
00260     if (c->president_name != NULL && strcmp(c->president_name, name) == 0) return false;
00261   }
00262 
00263   return true;
00264 }
00265 
00272 CommandCost CmdRenamePresident(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00273 {
00274   bool reset = StrEmpty(text);
00275 
00276   if (!reset) {
00277     if (strlen(text) >= MAX_LENGTH_PRESIDENT_NAME_BYTES) return CMD_ERROR;
00278     if (!IsUniquePresidentName(text)) return_cmd_error(STR_NAME_MUST_BE_UNIQUE);
00279   }
00280 
00281   if (flags & DC_EXEC) {
00282     Company *c = GetCompany(_current_company);
00283     free(c->president_name);
00284 
00285     if (reset) {
00286       c->president_name = NULL;
00287     } else {
00288       c->president_name = strdup(text);
00289 
00290       if (c->name_1 == STR_SV_UNNAMED && c->name == NULL) {
00291         char buf[80];
00292 
00293         snprintf(buf, lengthof(buf), "%s Transport", text);
00294         DoCommand(0, 0, 0, DC_EXEC, CMD_RENAME_COMPANY, buf);
00295       }
00296     }
00297 
00298     MarkWholeScreenDirty();
00299   }
00300 
00301   return CommandCost();
00302 }
00303 
00310 static void AskUnsafeUnpauseCallback(Window *w, bool confirmed)
00311 {
00312   DoCommandP(0, confirmed ? 0 : 1, 0, CMD_PAUSE);
00313 }
00314 
00324 CommandCost CmdPause(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00325 {
00326   if (flags & DC_EXEC) {
00327     _pause_game += (p1 == 0) ? -1 : 1;
00328 
00329     switch (_pause_game) {
00330       case -4:
00331       case -1:
00332         _pause_game = 0;
00333         break;
00334       case -3:
00335         ShowQuery(
00336           STR_NEWGRF_UNPAUSE_WARNING_TITLE,
00337           STR_NEWGRF_UNPAUSE_WARNING,
00338           NULL,
00339           AskUnsafeUnpauseCallback
00340         );
00341         break;
00342 
00343       default: break;
00344     }
00345 
00346     InvalidateWindow(WC_STATUS_BAR, 0);
00347     InvalidateWindow(WC_MAIN_TOOLBAR, 0);
00348   }
00349   return CommandCost();
00350 }
00351 
00360 CommandCost CmdMoneyCheat(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00361 {
00362 #ifndef _DEBUG
00363   if (_networking) return CMD_ERROR;
00364 #endif
00365   return CommandCost(EXPENSES_OTHER, -(int32)p1);
00366 }
00367 
00377 CommandCost CmdGiveMoney(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00378 {
00379   if (!_settings_game.economy.give_money) return CMD_ERROR;
00380 
00381   const Company *c = GetCompany(_current_company);
00382   CommandCost amount(EXPENSES_OTHER, min((Money)p1, (Money)20000000LL));
00383 
00384   /* You can only transfer funds that is in excess of your loan */
00385   if (c->money - c->current_loan < amount.GetCost() || amount.GetCost() <= 0) return CMD_ERROR;
00386   if (!_networking || !IsValidCompanyID((CompanyID)p2)) return CMD_ERROR;
00387 
00388   if (flags & DC_EXEC) {
00389     /* Add money to company */
00390     CompanyID old_company = _current_company;
00391     _current_company = (CompanyID)p2;
00392     SubtractMoneyFromCompany(CommandCost(EXPENSES_OTHER, -amount.GetCost()));
00393     _current_company = old_company;
00394   }
00395 
00396   /* Subtract money from local-company */
00397   return amount;
00398 }

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