command.cpp

Go to the documentation of this file.
00001 /* $Id$ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "landscape.h"
00014 #include "gui.h"
00015 #include "command_func.h"
00016 #include "network/network_type.h"
00017 #include "network/network.h"
00018 #include "genworld.h"
00019 #include "newgrf_storage.h"
00020 #include "strings_func.h"
00021 #include "gfx_func.h"
00022 #include "texteff.hpp"
00023 #include "town.h"
00024 #include "date_func.h"
00025 #include "company_func.h"
00026 #include "company_base.h"
00027 #include "signal_func.h"
00028 #include "core/backup_type.hpp"
00029 #include "object_base.h"
00030 
00031 #include "table/strings.h"
00032 
00033 CommandProc CmdBuildRailroadTrack;
00034 CommandProc CmdRemoveRailroadTrack;
00035 CommandProc CmdBuildSingleRail;
00036 CommandProc CmdRemoveSingleRail;
00037 
00038 CommandProc CmdLandscapeClear;
00039 
00040 CommandProc CmdBuildBridge;
00041 
00042 CommandProc CmdBuildRailStation;
00043 CommandProc CmdRemoveFromRailStation;
00044 CommandProc CmdConvertRail;
00045 
00046 CommandProc CmdBuildSingleSignal;
00047 CommandProc CmdRemoveSingleSignal;
00048 
00049 CommandProc CmdTerraformLand;
00050 
00051 CommandProc CmdBuildObject;
00052 CommandProc CmdSellLandArea;
00053 
00054 CommandProc CmdBuildTunnel;
00055 
00056 CommandProc CmdBuildTrainDepot;
00057 CommandProc CmdBuildRailWaypoint;
00058 CommandProc CmdRenameWaypoint;
00059 CommandProc CmdRemoveFromRailWaypoint;
00060 
00061 CommandProc CmdBuildRoadStop;
00062 CommandProc CmdRemoveRoadStop;
00063 
00064 CommandProc CmdBuildLongRoad;
00065 CommandProc CmdRemoveLongRoad;
00066 CommandProc CmdBuildRoad;
00067 
00068 CommandProc CmdBuildRoadDepot;
00069 
00070 CommandProc CmdBuildAirport;
00071 
00072 CommandProc CmdBuildDock;
00073 
00074 CommandProc CmdBuildShipDepot;
00075 
00076 CommandProc CmdBuildBuoy;
00077 
00078 CommandProc CmdPlantTree;
00079 
00080 CommandProc CmdMoveRailVehicle;
00081 
00082 CommandProc CmdBuildVehicle;
00083 CommandProc CmdSellVehicle;
00084 CommandProc CmdRefitVehicle;
00085 CommandProc CmdSendVehicleToDepot;
00086 
00087 CommandProc CmdForceTrainProceed;
00088 CommandProc CmdReverseTrainDirection;
00089 
00090 CommandProc CmdClearOrderBackup;
00091 CommandProc CmdModifyOrder;
00092 CommandProc CmdSkipToOrder;
00093 CommandProc CmdDeleteOrder;
00094 CommandProc CmdInsertOrder;
00095 CommandProc CmdChangeServiceInt;
00096 
00097 CommandProc CmdBuildIndustry;
00098 
00099 CommandProc CmdSetCompanyManagerFace;
00100 CommandProc CmdSetCompanyColour;
00101 
00102 CommandProc CmdIncreaseLoan;
00103 CommandProc CmdDecreaseLoan;
00104 
00105 CommandProc CmdWantEnginePreview;
00106 
00107 CommandProc CmdRenameVehicle;
00108 CommandProc CmdRenameEngine;
00109 
00110 CommandProc CmdRenameCompany;
00111 CommandProc CmdRenamePresident;
00112 
00113 CommandProc CmdRenameStation;
00114 CommandProc CmdRenameDepot;
00115 
00116 CommandProc CmdPlaceSign;
00117 CommandProc CmdRenameSign;
00118 
00119 CommandProc CmdTurnRoadVeh;
00120 
00121 CommandProc CmdPause;
00122 
00123 CommandProc CmdBuyShareInCompany;
00124 CommandProc CmdSellShareInCompany;
00125 CommandProc CmdBuyCompany;
00126 
00127 CommandProc CmdFoundTown;
00128 CommandProc CmdRenameTown;
00129 CommandProc CmdDoTownAction;
00130 CommandProc CmdExpandTown;
00131 CommandProc CmdDeleteTown;
00132 
00133 CommandProc CmdChangeSetting;
00134 CommandProc CmdChangeCompanySetting;
00135 
00136 CommandProc CmdOrderRefit;
00137 CommandProc CmdCloneOrder;
00138 
00139 CommandProc CmdClearArea;
00140 
00141 CommandProc CmdGiveMoney;
00142 CommandProc CmdMoneyCheat;
00143 CommandProc CmdBuildCanal;
00144 CommandProc CmdBuildLock;
00145 
00146 CommandProc CmdCompanyCtrl;
00147 
00148 CommandProc CmdLevelLand;
00149 
00150 CommandProc CmdBuildSignalTrack;
00151 CommandProc CmdRemoveSignalTrack;
00152 
00153 CommandProc CmdSetAutoReplace;
00154 
00155 CommandProc CmdCloneVehicle;
00156 CommandProc CmdStartStopVehicle;
00157 CommandProc CmdMassStartStopVehicle;
00158 CommandProc CmdAutoreplaceVehicle;
00159 CommandProc CmdDepotSellAllVehicles;
00160 CommandProc CmdDepotMassAutoReplace;
00161 
00162 CommandProc CmdCreateGroup;
00163 CommandProc CmdRenameGroup;
00164 CommandProc CmdDeleteGroup;
00165 CommandProc CmdAddVehicleGroup;
00166 CommandProc CmdAddSharedVehicleGroup;
00167 CommandProc CmdRemoveAllVehiclesGroup;
00168 CommandProc CmdSetGroupReplaceProtection;
00169 
00170 CommandProc CmdMoveOrder;
00171 CommandProc CmdChangeTimetable;
00172 CommandProc CmdSetVehicleOnTime;
00173 CommandProc CmdAutofillTimetable;
00174 CommandProc CmdSetTimetableStart;
00175 
00176 #define DEF_CMD(proc, flags, type) {proc, #proc, flags, type}
00177 
00185 static const Command _command_proc_table[] = {
00186   DEF_CMD(CmdBuildRailroadTrack,       CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_RAILROAD_TRACK
00187   DEF_CMD(CmdRemoveRailroadTrack,                     CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_RAILROAD_TRACK
00188   DEF_CMD(CmdBuildSingleRail,          CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_SINGLE_RAIL
00189   DEF_CMD(CmdRemoveSingleRail,                        CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_SINGLE_RAIL
00190   DEF_CMD(CmdLandscapeClear,                                 0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_LANDSCAPE_CLEAR
00191   DEF_CMD(CmdBuildBridge,              CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_BRIDGE
00192   DEF_CMD(CmdBuildRailStation,         CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_RAIL_STATION
00193   DEF_CMD(CmdBuildTrainDepot,          CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_TRAIN_DEPOT
00194   DEF_CMD(CmdBuildSingleSignal,                       CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_SIGNALS
00195   DEF_CMD(CmdRemoveSingleSignal,                      CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_SIGNALS
00196   DEF_CMD(CmdTerraformLand,           CMD_ALL_TILES | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_TERRAFORM_LAND
00197   DEF_CMD(CmdBuildObject,              CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_OBJECT
00198   DEF_CMD(CmdBuildTunnel,                             CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_TUNNEL
00199   DEF_CMD(CmdRemoveFromRailStation,                          0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_FROM_RAIL_STATION
00200   DEF_CMD(CmdConvertRail,                                    0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_CONVERT_RAILD
00201   DEF_CMD(CmdBuildRailWaypoint,                              0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_RAIL_WAYPOINT
00202   DEF_CMD(CmdRenameWaypoint,                                 0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_WAYPOINT
00203   DEF_CMD(CmdRemoveFromRailWaypoint,                         0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_FROM_RAIL_WAYPOINT
00204 
00205   DEF_CMD(CmdBuildRoadStop,            CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_ROAD_STOP
00206   DEF_CMD(CmdRemoveRoadStop,                                 0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_ROAD_STOP
00207   DEF_CMD(CmdBuildLongRoad,            CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_LONG_ROAD
00208   DEF_CMD(CmdRemoveLongRoad,            CMD_NO_TEST | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_LONG_ROAD; towns may disallow removing road bits (as they are connected) in test, but in exec they're removed and thus removing is allowed.
00209   DEF_CMD(CmdBuildRoad,                CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_ROAD
00210   DEF_CMD(CmdBuildRoadDepot,           CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_ROAD_DEPOT
00211 
00212   DEF_CMD(CmdBuildAirport,             CMD_NO_WATER | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_AIRPORT
00213   DEF_CMD(CmdBuildDock,                               CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_DOCK
00214   DEF_CMD(CmdBuildShipDepot,                          CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_SHIP_DEPOT
00215   DEF_CMD(CmdBuildBuoy,                               CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_BUOY
00216   DEF_CMD(CmdPlantTree,                               CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_PLANT_TREE
00217 
00218   DEF_CMD(CmdBuildVehicle,                       CMD_CLIENT_ID, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_BUILD_VEHICLE
00219   DEF_CMD(CmdSellVehicle,                        CMD_CLIENT_ID, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_SELL_VEHICLE
00220   DEF_CMD(CmdRefitVehicle,                                   0, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_REFIT_VEHICLE
00221   DEF_CMD(CmdSendVehicleToDepot,                             0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_SEND_VEHICLE_TO_DEPOT
00222 
00223   DEF_CMD(CmdMoveRailVehicle,                                0, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_MOVE_RAIL_VEHICLE
00224   DEF_CMD(CmdForceTrainProceed,                              0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_FORCE_TRAIN_PROCEED
00225   DEF_CMD(CmdReverseTrainDirection,                          0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_REVERSE_TRAIN_DIRECTION
00226 
00227   DEF_CMD(CmdClearOrderBackup,                   CMD_CLIENT_ID, CMDT_ROUTE_MANAGEMENT      ), // CMD_CLEAR_ORDER_BACKUP
00228   DEF_CMD(CmdModifyOrder,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_MODIFY_ORDER
00229   DEF_CMD(CmdSkipToOrder,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SKIP_TO_ORDER
00230   DEF_CMD(CmdDeleteOrder,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_DELETE_ORDER
00231   DEF_CMD(CmdInsertOrder,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_INSERT_ORDER
00232 
00233   DEF_CMD(CmdChangeServiceInt,                               0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_CHANGE_SERVICE_INT
00234 
00235   DEF_CMD(CmdBuildIndustry,                                  0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_INDUSTRY
00236   DEF_CMD(CmdSetCompanyManagerFace,                          0, CMDT_OTHER_MANAGEMENT      ), // CMD_SET_COMPANY_MANAGER_FACE
00237   DEF_CMD(CmdSetCompanyColour,                               0, CMDT_OTHER_MANAGEMENT      ), // CMD_SET_COMPANY_COLOUR
00238 
00239   DEF_CMD(CmdIncreaseLoan,                                   0, CMDT_MONEY_MANAGEMENT      ), // CMD_INCREASE_LOAN
00240   DEF_CMD(CmdDecreaseLoan,                                   0, CMDT_MONEY_MANAGEMENT      ), // CMD_DECREASE_LOAN
00241 
00242   DEF_CMD(CmdWantEnginePreview,                              0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_WANT_ENGINE_PREVIEW
00243 
00244   DEF_CMD(CmdRenameVehicle,                                  0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_VEHICLE
00245   DEF_CMD(CmdRenameEngine,                                   0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_ENGINE
00246 
00247   DEF_CMD(CmdRenameCompany,                                  0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_COMPANY
00248   DEF_CMD(CmdRenamePresident,                                0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_PRESIDENT
00249 
00250   DEF_CMD(CmdRenameStation,                                  0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_STATION
00251   DEF_CMD(CmdRenameDepot,                                    0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_DEPOT
00252 
00253   DEF_CMD(CmdPlaceSign,                                      0, CMDT_OTHER_MANAGEMENT      ), // CMD_PLACE_SIGN
00254   DEF_CMD(CmdRenameSign,                                     0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_SIGN
00255 
00256   DEF_CMD(CmdTurnRoadVeh,                                    0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_TURN_ROADVEH
00257 
00258   DEF_CMD(CmdPause,                                 CMD_SERVER, CMDT_SERVER_SETTING        ), // CMD_PAUSE
00259 
00260   DEF_CMD(CmdBuyShareInCompany,                              0, CMDT_MONEY_MANAGEMENT      ), // CMD_BUY_SHARE_IN_COMPANY
00261   DEF_CMD(CmdSellShareInCompany,                             0, CMDT_MONEY_MANAGEMENT      ), // CMD_SELL_SHARE_IN_COMPANY
00262   DEF_CMD(CmdBuyCompany,                                     0, CMDT_MONEY_MANAGEMENT      ), // CMD_BUY_COMANY
00263 
00264   DEF_CMD(CmdFoundTown,                            CMD_NO_TEST, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_FOUND_TOWN; founding random town can fail only in exec run
00265   DEF_CMD(CmdRenameTown,                            CMD_SERVER, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_TOWN
00266   DEF_CMD(CmdDoTownAction,                                   0, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_DO_TOWN_ACTION
00267   DEF_CMD(CmdExpandTown,                           CMD_OFFLINE, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_EXPAND_TOWN
00268   DEF_CMD(CmdDeleteTown,                           CMD_OFFLINE, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_DELETE_TOWN
00269 
00270   DEF_CMD(CmdOrderRefit,                                     0, CMDT_ROUTE_MANAGEMENT      ), // CMD_ORDER_REFIT
00271   DEF_CMD(CmdCloneOrder,                                     0, CMDT_ROUTE_MANAGEMENT      ), // CMD_CLONE_ORDER
00272 
00273   DEF_CMD(CmdClearArea,                            CMD_NO_TEST, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_CLEAR_AREA; destroying multi-tile houses makes town rating differ between test and execution
00274 
00275   DEF_CMD(CmdMoneyCheat,                           CMD_OFFLINE, CMDT_CHEAT                 ), // CMD_MONEY_CHEAT
00276   DEF_CMD(CmdBuildCanal,                              CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_CANAL
00277   DEF_CMD(CmdCompanyCtrl,        CMD_SPECTATOR | CMD_CLIENT_ID, CMDT_SERVER_SETTING        ), // CMD_COMPANY_CTRL
00278 
00279   DEF_CMD(CmdLevelLand, CMD_ALL_TILES | CMD_NO_TEST | CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_LEVEL_LAND; test run might clear tiles multiple times, in execution that only happens once
00280 
00281   DEF_CMD(CmdBuildLock,                               CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_LOCK
00282 
00283   DEF_CMD(CmdBuildSignalTrack,                        CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_BUILD_SIGNAL_TRACK
00284   DEF_CMD(CmdRemoveSignalTrack,                       CMD_AUTO, CMDT_LANDSCAPE_CONSTRUCTION), // CMD_REMOVE_SIGNAL_TRACK
00285 
00286   DEF_CMD(CmdGiveMoney,                                      0, CMDT_MONEY_MANAGEMENT      ), // CMD_GIVE_MONEY
00287   DEF_CMD(CmdChangeSetting,                         CMD_SERVER, CMDT_SERVER_SETTING        ), // CMD_CHANGE_SETTING
00288   DEF_CMD(CmdChangeCompanySetting,                           0, CMDT_COMPANY_SETTING       ), // CMD_CHANGE_COMPANY_SETTING
00289   DEF_CMD(CmdSetAutoReplace,                                 0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_SET_AUTOREPLACE
00290   DEF_CMD(CmdCloneVehicle,                         CMD_NO_TEST, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_CLONE_VEHICLE; NewGRF callbacks influence building and refitting making it impossible to correctly estimate the cost
00291   DEF_CMD(CmdStartStopVehicle,                               0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_START_STOP_VEHICLE
00292   DEF_CMD(CmdMassStartStopVehicle,                           0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_MASS_START_STOP
00293   DEF_CMD(CmdAutoreplaceVehicle,                             0, CMDT_VEHICLE_MANAGEMENT    ), // CMD_AUTOREPLACE_VEHICLE
00294   DEF_CMD(CmdDepotSellAllVehicles,                           0, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_DEPOT_SELL_ALL_VEHICLES
00295   DEF_CMD(CmdDepotMassAutoReplace,                           0, CMDT_VEHICLE_CONSTRUCTION  ), // CMD_DEPOT_MASS_AUTOREPLACE
00296   DEF_CMD(CmdCreateGroup,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_CREATE_GROUP
00297   DEF_CMD(CmdDeleteGroup,                                    0, CMDT_ROUTE_MANAGEMENT      ), // CMD_DELETE_GROUP
00298   DEF_CMD(CmdRenameGroup,                                    0, CMDT_OTHER_MANAGEMENT      ), // CMD_RENAME_GROUP
00299   DEF_CMD(CmdAddVehicleGroup,                                0, CMDT_ROUTE_MANAGEMENT      ), // CMD_ADD_VEHICLE_GROUP
00300   DEF_CMD(CmdAddSharedVehicleGroup,                          0, CMDT_ROUTE_MANAGEMENT      ), // CMD_ADD_SHARE_VEHICLE_GROUP
00301   DEF_CMD(CmdRemoveAllVehiclesGroup,                         0, CMDT_ROUTE_MANAGEMENT      ), // CMD_REMOVE_ALL_VEHICLES_GROUP
00302   DEF_CMD(CmdSetGroupReplaceProtection,                      0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SET_GROUP_REPLACE_PROTECTION
00303   DEF_CMD(CmdMoveOrder,                                      0, CMDT_ROUTE_MANAGEMENT      ), // CMD_MOVE_ORDER
00304   DEF_CMD(CmdChangeTimetable,                                0, CMDT_ROUTE_MANAGEMENT      ), // CMD_CHANGE_TIMETABLE
00305   DEF_CMD(CmdSetVehicleOnTime,                               0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SET_VEHICLE_ON_TIME
00306   DEF_CMD(CmdAutofillTimetable,                              0, CMDT_ROUTE_MANAGEMENT      ), // CMD_AUTOFILL_TIMETABLE
00307   DEF_CMD(CmdSetTimetableStart,                              0, CMDT_ROUTE_MANAGEMENT      ), // CMD_SET_TIMETABLE_START
00308 };
00309 
00316 bool IsValidCommand(uint32 cmd)
00317 {
00318   cmd &= CMD_ID_MASK;
00319 
00320   return cmd < lengthof(_command_proc_table) && _command_proc_table[cmd].proc != NULL;
00321 }
00322 
00330 byte GetCommandFlags(uint32 cmd)
00331 {
00332   assert(IsValidCommand(cmd));
00333 
00334   return _command_proc_table[cmd & CMD_ID_MASK].flags;
00335 }
00336 
00344 const char *GetCommandName(uint32 cmd)
00345 {
00346   assert(IsValidCommand(cmd));
00347 
00348   return _command_proc_table[cmd & CMD_ID_MASK].name;
00349 }
00350 
00356 bool IsCommandAllowedWhilePaused(uint32 cmd)
00357 {
00358   /* Lookup table for the command types that are allowed for a given pause level setting. */
00359   static const int command_type_lookup[] = {
00360     CMDPL_ALL_ACTIONS,     
00361     CMDPL_NO_LANDSCAPING,  
00362     CMDPL_NO_LANDSCAPING,  
00363     CMDPL_NO_CONSTRUCTION, 
00364     CMDPL_NO_CONSTRUCTION, 
00365     CMDPL_NO_CONSTRUCTION, 
00366     CMDPL_NO_CONSTRUCTION, 
00367     CMDPL_NO_ACTIONS,      
00368     CMDPL_NO_ACTIONS,      
00369   };
00370   assert_compile(lengthof(command_type_lookup) == CMDT_END);
00371 
00372   assert(IsValidCommand(cmd));
00373   return _game_mode == GM_EDITOR || command_type_lookup[_command_proc_table[cmd & CMD_ID_MASK].type] <= _settings_game.construction.command_pause_level;
00374 }
00375 
00376 
00377 static int _docommand_recursive = 0;
00378 
00387 CommandCost DoCommand(const CommandContainer *container, DoCommandFlag flags)
00388 {
00389   return DoCommand(container->tile, container->p1, container->p2, flags, container->cmd & CMD_ID_MASK, container->text);
00390 }
00391 
00405 CommandCost DoCommand(TileIndex tile, uint32 p1, uint32 p2, DoCommandFlag flags, uint32 cmd, const char *text)
00406 {
00407   CommandCost res;
00408 
00409   /* Do not even think about executing out-of-bounds tile-commands */
00410   if (tile != 0 && (tile >= MapSize() || (!IsValidTile(tile) && (flags & DC_ALL_TILES) == 0))) return CMD_ERROR;
00411 
00412   /* Chop of any CMD_MSG or other flags; we don't need those here */
00413   CommandProc *proc = _command_proc_table[cmd & CMD_ID_MASK].proc;
00414 
00415   _docommand_recursive++;
00416 
00417   /* only execute the test call if it's toplevel, or we're not execing. */
00418   if (_docommand_recursive == 1 || !(flags & DC_EXEC) ) {
00419     if (_docommand_recursive == 1) _cleared_object_areas.Clear();
00420     SetTownRatingTestMode(true);
00421     res = proc(tile, flags & ~DC_EXEC, p1, p2, text);
00422     SetTownRatingTestMode(false);
00423     if (res.Failed()) {
00424       goto error;
00425     }
00426 
00427     if (_docommand_recursive == 1 &&
00428         !(flags & DC_QUERY_COST) &&
00429         !(flags & DC_BANKRUPT) &&
00430         !CheckCompanyHasMoney(res)) { // CheckCompanyHasMoney() modifies 'res' to an error if it fails.
00431       goto error;
00432     }
00433 
00434     if (!(flags & DC_EXEC)) {
00435       _docommand_recursive--;
00436       return res;
00437     }
00438   }
00439 
00440   /* Execute the command here. All cost-relevant functions set the expenses type
00441    * themselves to the cost object at some point */
00442   if (_docommand_recursive == 1) _cleared_object_areas.Clear();
00443   res = proc(tile, flags, p1, p2, text);
00444   if (res.Failed()) {
00445 error:
00446     _docommand_recursive--;
00447     return res;
00448   }
00449 
00450   /* if toplevel, subtract the money. */
00451   if (--_docommand_recursive == 0 && !(flags & DC_BANKRUPT)) {
00452     SubtractMoneyFromCompany(res);
00453   }
00454 
00455   return res;
00456 }
00457 
00465 Money GetAvailableMoneyForCommand()
00466 {
00467   CompanyID company = _current_company;
00468   if (!Company::IsValidID(company)) return INT64_MAX;
00469   return Company::Get(company)->money;
00470 }
00471 
00478 bool DoCommandP(const CommandContainer *container, bool my_cmd)
00479 {
00480   return DoCommandP(container->tile, container->p1, container->p2, container->cmd, container->callback, container->text, my_cmd);
00481 }
00482 
00498 bool DoCommandP(TileIndex tile, uint32 p1, uint32 p2, uint32 cmd, CommandCallback *callback, const char *text, bool my_cmd)
00499 {
00500   /* Cost estimation is generally only done when the
00501    * local user presses shift while doing somthing.
00502    * However, in case of incoming network commands,
00503    * map generation of the pause button we do want
00504    * to execute. */
00505   bool estimate_only = _shift_pressed && IsLocalCompany() &&
00506       !IsGeneratingWorld() &&
00507       !(cmd & CMD_NETWORK_COMMAND) &&
00508       (cmd & CMD_ID_MASK) != CMD_PAUSE;
00509 
00510   /* We're only sending the command, so don't do
00511    * fancy things for 'success'. */
00512   bool only_sending = _networking && !(cmd & CMD_NETWORK_COMMAND);
00513 
00514   /* Where to show the message? */
00515   int x = TileX(tile) * TILE_SIZE;
00516   int y = TileY(tile) * TILE_SIZE;
00517 
00518   if (_pause_mode != PM_UNPAUSED && !IsCommandAllowedWhilePaused(cmd)) {
00519     ShowErrorMessage(GB(cmd, 16, 16), STR_ERROR_NOT_ALLOWED_WHILE_PAUSED, WL_INFO, x, y);
00520     return false;
00521   }
00522 
00523 #ifdef ENABLE_NETWORK
00524   /* Only set p2 when the command does not come from the network. */
00525   if (!(cmd & CMD_NETWORK_COMMAND) && GetCommandFlags(cmd) & CMD_CLIENT_ID && p2 == 0) p2 = CLIENT_ID_SERVER;
00526 #endif
00527 
00528   CommandCost res = DoCommandPInternal(tile, p1, p2, cmd, callback, text, my_cmd, estimate_only);
00529   if (res.Failed()) {
00530     /* Only show the error when it's for us. */
00531     StringID error_part1 = GB(cmd, 16, 16);
00532     if (estimate_only || (IsLocalCompany() && error_part1 != 0 && my_cmd)) {
00533       ShowErrorMessage(error_part1, res.GetErrorMessage(), WL_INFO, x, y);
00534     }
00535   } else if (estimate_only) {
00536     ShowEstimatedCostOrIncome(res.GetCost(), x, y);
00537   } else if (!only_sending && res.GetCost() != 0 && tile != 0 && IsLocalCompany() && _game_mode != GM_EDITOR) {
00538     /* Only show the cost animation when we did actually
00539      * execute the command, i.e. we're not sending it to
00540      * the server, when it has cost the local company
00541      * something. Furthermore in the editor there is no
00542      * concept of cost, so don't show it there either. */
00543     ShowCostOrIncomeAnimation(x, y, GetSlopeZ(x, y), res.GetCost());
00544   }
00545 
00546   if (!estimate_only && !only_sending && callback != NULL) {
00547     callback(res, tile, p1, p2);
00548   }
00549 
00550   return res.Succeeded();
00551 }
00552 
00553 
00559 #define return_dcpi(cmd, clear) { _docommand_recursive = 0; ClearStorageChanges(clear); return cmd; }
00560 
00574 CommandCost DoCommandPInternal(TileIndex tile, uint32 p1, uint32 p2, uint32 cmd, CommandCallback *callback, const char *text, bool my_cmd, bool estimate_only)
00575 {
00576   /* Prevent recursion; it gives a mess over the network */
00577   assert(_docommand_recursive == 0);
00578   _docommand_recursive = 1;
00579 
00580   /* Reset the state. */
00581   _additional_cash_required = 0;
00582 
00583   /* Get pointer to command handler */
00584   byte cmd_id = cmd & CMD_ID_MASK;
00585   assert(cmd_id < lengthof(_command_proc_table));
00586 
00587   CommandProc *proc = _command_proc_table[cmd_id].proc;
00588   /* Shouldn't happen, but you never know when someone adds
00589    * NULLs to the _command_proc_table. */
00590   assert(proc != NULL);
00591 
00592   /* Command flags are used internally */
00593   uint cmd_flags = GetCommandFlags(cmd);
00594   /* Flags get send to the DoCommand */
00595   DoCommandFlag flags = CommandFlagsToDCFlags(cmd_flags);
00596 
00597 #ifdef ENABLE_NETWORK
00598   /* Make sure p2 is properly set to a ClientID. */
00599   assert(!(cmd_flags & CMD_CLIENT_ID) || p2 != 0);
00600 #endif
00601 
00602   /* Do not even think about executing out-of-bounds tile-commands */
00603   if (tile != 0 && (tile >= MapSize() || (!IsValidTile(tile) && (cmd_flags & CMD_ALL_TILES) == 0))) return_dcpi(CMD_ERROR, false);
00604 
00605   /* Always execute server and spectator commands as spectator */
00606   bool exec_as_spectator = (cmd_flags & (CMD_SPECTATOR | CMD_SERVER)) != 0;
00607 
00608   /* If the company isn't valid it may only do server command or start a new company!
00609    * The server will ditch any server commands a client sends to it, so effectively
00610    * this guards the server from executing functions for an invalid company. */
00611   if (_game_mode == GM_NORMAL && !exec_as_spectator && !Company::IsValidID(_current_company)) {
00612     return_dcpi(CMD_ERROR, false);
00613   }
00614 
00615   Backup<CompanyByte> cur_company(_current_company, FILE_LINE);
00616   if (exec_as_spectator) cur_company.Change(COMPANY_SPECTATOR);
00617 
00618   bool test_and_exec_can_differ = (cmd_flags & CMD_NO_TEST) != 0;
00619   bool skip_test = _networking && (cmd & CMD_NO_TEST_IF_IN_NETWORK) != 0;
00620 
00621   /* Do we need to do a test run?
00622    * Basically we need to always do this, except when
00623    * the no-test-in-network flag is giving and we're
00624    * in a network game (e.g. restoring orders would
00625    * fail this test because the first order does not
00626    * exist yet when inserting the second, giving that
00627    * a wrong insert location and ignoring the command
00628    * and thus breaking restoring). However, when we
00629    * just want to do cost estimation we don't care
00630    * because it's only done once anyway. */
00631   CommandCost res;
00632   if (estimate_only || !skip_test) {
00633     /* Test the command. */
00634     _cleared_object_areas.Clear();
00635     SetTownRatingTestMode(true);
00636     res = proc(tile, flags, p1, p2, text);
00637     SetTownRatingTestMode(false);
00638 
00639     /* Make sure we're not messing things up here. */
00640     assert(exec_as_spectator ? _current_company == COMPANY_SPECTATOR : cur_company.Verify());
00641 
00642     /* If the command fails, we're doing an estimate
00643      * or the player does not have enough money
00644      * (unless it's a command where the test and
00645      * execution phase might return different costs)
00646      * we bail out here. */
00647     if (res.Failed() || estimate_only ||
00648         (!test_and_exec_can_differ && !CheckCompanyHasMoney(res))) {
00649       cur_company.Restore();
00650       return_dcpi(res, false);
00651     }
00652   }
00653 
00654 #ifdef ENABLE_NETWORK
00655   /*
00656    * If we are in network, and the command is not from the network
00657    * send it to the command-queue and abort execution
00658    */
00659   if (_networking && !(cmd & CMD_NETWORK_COMMAND)) {
00660     NetworkSendCommand(tile, p1, p2, cmd & ~CMD_FLAGS_MASK, callback, text, _current_company);
00661     cur_company.Restore();
00662 
00663     /* Don't return anything special here; no error, no costs.
00664      * This way it's not handled by DoCommand and only the
00665      * actual execution of the command causes messages. Also
00666      * reset the storages as we've not executed the command. */
00667     return_dcpi(CommandCost(), false);
00668   }
00669 #endif /* ENABLE_NETWORK */
00670   DEBUG(desync, 1, "cmd: %08x; %02x; %02x; %06x; %08x; %08x; %08x; \"%s\" (%s)", _date, _date_fract, (int)_current_company, tile, p1, p2, cmd & ~CMD_NETWORK_COMMAND, text, GetCommandName(cmd));
00671 
00672   /* Actually try and execute the command. If no cost-type is given
00673    * use the construction one */
00674   _cleared_object_areas.Clear();
00675   CommandCost res2 = proc(tile, flags | DC_EXEC, p1, p2, text);
00676 
00677   if (cmd_id == CMD_COMPANY_CTRL) {
00678     cur_company.Trash();
00679     /* We are a new company                  -> Switch to new local company.
00680      * We were closed down                   -> Switch to spectator
00681      * Some other company opened/closed down -> The outside function will switch back */
00682     _current_company = _local_company;
00683   } else {
00684     /* Make sure nothing bad happened, like changing the current company. */
00685     assert(exec_as_spectator ? _current_company == COMPANY_SPECTATOR : cur_company.Verify());
00686     cur_company.Restore();
00687   }
00688 
00689   /* If the test and execution can differ, or we skipped the test
00690    * we have to check the return of the command. Otherwise we can
00691    * check whether the test and execution have yielded the same
00692    * result, i.e. cost and error state are the same. */
00693   if (!test_and_exec_can_differ && !skip_test) {
00694     assert(res.GetCost() == res2.GetCost() && res.Failed() == res2.Failed()); // sanity check
00695   } else if (res2.Failed()) {
00696     return_dcpi(res2, false);
00697   }
00698 
00699   /* If we're needing more money and we haven't done
00700    * anything yet, ask for the money! */
00701   if (_additional_cash_required != 0 && res2.GetCost() == 0) {
00702     /* It could happen we removed rail, thus gained money, and deleted something else.
00703      * So make sure the signal buffer is empty even in this case */
00704     UpdateSignalsInBuffer();
00705     SetDParam(0, _additional_cash_required);
00706     return_dcpi(CommandCost(STR_ERROR_NOT_ENOUGH_CASH_REQUIRES_CURRENCY), false);
00707   }
00708 
00709   /* update last build coordinate of company. */
00710   if (tile != 0) {
00711     Company *c = Company::GetIfValid(_current_company);
00712     if (c != NULL) c->last_build_coordinate = tile;
00713   }
00714 
00715   SubtractMoneyFromCompany(res2);
00716 
00717   /* update signals if needed */
00718   UpdateSignalsInBuffer();
00719 
00720   return_dcpi(res2, true);
00721 }
00722 #undef return_dcpi
00723 
00724 
00730 void CommandCost::AddCost(const CommandCost &ret)
00731 {
00732   this->AddCost(ret.cost);
00733   if (this->success && !ret.success) {
00734     this->message = ret.message;
00735     this->success = false;
00736   }
00737 }

Generated on Fri May 27 04:19:40 2011 for OpenTTD by  doxygen 1.6.1