2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 typedef struct cmd_state_s cmd_state_t;
27 cvar_t variables are used to hold scalar or string variables that can be changed or displayed at the console or prog code as well as accessed directly
30 it is sufficient to initialize a cvar_t with just the first two fields, or
31 you can add a ,true flag for variables that you want saved to the configuration
32 file when the game is quit:
34 cvar_t r_draworder = {"r_draworder","1"};
35 cvar_t scr_screensize = {"screensize","1",true};
37 Cvars must be registered before use, or they will have a 0 value instead of the float interpretation of the string. Generally, all cvar_t declarations should be registered in the apropriate init function before any console commands are executed:
38 Cvar_RegisterVariable (&host_framerate);
41 C code usually just references a cvar in place:
42 if ( r_draworder.value )
44 It could optionally ask for the value to be looked up for a string name:
45 if (Cvar_VariableValue ("r_draworder"))
47 Interpreted prog code can access cvars with the cvar(name) or
48 cvar_set (name, value) internal functions:
49 teamplay = cvar("teamplay");
50 cvar_set ("registered", "1");
52 The user can access cvars from the console in two ways:
53 r_draworder prints the current value
54 r_draworder 0 sets the current value to 0
55 Cvars are restricted from having the same names as commands to keep this
56 interface from being ambiguous.
66 #define CVAR_READONLY 4
67 #define CVAR_SERVERINFO 8
68 #define CVAR_USERINFO 16
69 // CVAR_PRIVATE means do not $ expand or sendcvar this cvar under any circumstances (rcon_password uses this)
70 #define CVAR_PRIVATE 32
71 // this means that this cvar should update a userinfo key but the name does not correspond directly to the userinfo key to update, and may require additional conversion ("_cl_color" for example should update "topcolor" and "bottomcolor")
72 #define CVAR_NQUSERINFOHACK 64
73 // for engine-owned cvars that must not be reset on gametype switch (e.g. scr_screenshot_name, which otherwise isn't set to the mod name properly)
74 #define CVAR_NORESETTODEFAULTS 128
75 // cvar is accessible in client
76 #define CVAR_CLIENT 256
77 // cvar is accessible in dedicated server
78 #define CVAR_SERVER 512
79 // cvar is an alias of another cvar
80 #define CVAR_ALIAS 1024
81 // used to determine if flags is valid
82 #define CVAR_MAXFLAGSVAL 2047
83 // for internal use only!
84 #define CVAR_DEFAULTSET (1<<30)
85 #define CVAR_ALLOCATED (1<<31)
88 // type of a cvar for menu purposes
89 #define CVARMENUTYPE_FLOAT 1
90 #define CVARMENUTYPE_INTEGER 2
91 #define CVARMENUTYPE_SLIDER 3
92 #define CVARMENUTYPE_BOOL 4
93 #define CVARMENUTYPE_STRING 5
94 #define CVARMENUTYPE_OPTION 6
96 // which menu to put a cvar in
97 #define CVARMENU_GRAPHICS 1
98 #define CVARMENU_SOUND 2
99 #define CVARMENU_INPUT 3
100 #define CVARMENU_NETWORK 4
101 #define CVARMENU_SERVER 5
103 #define MAX_CVAROPTIONS 16
105 typedef struct cvaroption_s
112 typedef struct menucvar_s
115 float valuemin, valuemax, valuestep;
117 cvaroption_t optionlist[MAX_CVAROPTIONS];
122 typedef struct cvar_s
129 const char *description;
134 const char *defstring;
136 void (*callback)(char *value);
138 // values at init (for Cvar_RestoreInitState)
139 qboolean initstate; // indicates this existed at init
141 const char *initstring;
142 const char *initdescription;
146 const char *initdefstring;
148 int globaldefindex[3];
149 int globaldefindex_stringno[3];
151 //menucvar_t menuinfo;
153 struct cvar_s *nextonhashchain;
154 struct cvar_s *alias;
157 typedef struct cvar_state_s
160 cvar_t *hashtable[CVAR_HASHSIZE];
164 extern cvar_state_t cvars_all;
165 extern cvar_state_t cvars_null; // used by cmd_serverfromclient which intentionally has no cvars available
168 void Cvar_MenuSlider(cvar_t *variable, int menu, float slider_min, float slider_max, float slider_step);
169 void Cvar_MenuBool(cvar_t *variable, int menu, const char *name_false, const char *name_true);
170 void Cvar_MenuFloat(cvar_t *variable, int menu, float range_min, float range_max);
171 void Cvar_MenuInteger(cvar_t *variable, int menu, int range_min, int range_max);
172 void Cvar_MenuString(cvar_t *variable, int menu);
173 void Cvar_MenuOption(cvar_t *variable, int menu, int value[16], const char *name[16]);
176 /// registers a cvar that already has the name, string, and optionally the
177 /// archive elements set.
178 void Cvar_RegisterAlias(cvar_t *source, cvar_t *target);
180 void Cvar_RegisterCallback(cvar_t *variable, void (*callback)(char *));
182 void Cvar_RegisterVariable(cvar_t *variable);
184 qboolean Cvar_Readonly (cvar_t *var, const char *cmd_name);
186 /// equivelant to "<name> <variable>" typed at the console
187 void Cvar_Set (cvar_state_t *cvars, const char *var_name, const char *value);
189 /// expands value to a string and calls Cvar_Set
190 void Cvar_SetValue (cvar_state_t *cvars, const char *var_name, float value);
192 void Cvar_SetQuick (cvar_t *var, const char *value);
193 void Cvar_SetValueQuick (cvar_t *var, float value);
195 float Cvar_VariableValueOr (cvar_state_t *cvars, const char *var_name, float def, int neededflags);
196 // returns def if not defined
198 float Cvar_VariableValue (cvar_state_t *cvars, const char *var_name, int neededflags);
199 // returns 0 if not defined or non numeric
201 const char *Cvar_VariableStringOr (cvar_state_t *cvars, const char *var_name, const char *def, int neededflags);
202 // returns def if not defined
204 const char *Cvar_VariableString (cvar_state_t *cvars, const char *var_name, int neededflags);
205 // returns an empty string if not defined
207 const char *Cvar_VariableDefString (cvar_state_t *cvars, const char *var_name, int neededflags);
208 // returns an empty string if not defined
210 const char *Cvar_VariableDescription (cvar_state_t *cvars, const char *var_name, int neededflags);
211 // returns an empty string if not defined
213 const char *Cvar_CompleteVariable (cvar_state_t *cvars, const char *partial, int neededflags);
214 // attempts to match a partial variable name for command line completion
215 // returns NULL if nothing fits
217 void Cvar_PrintHelp(cvar_t *cvar, qboolean full);
219 void Cvar_CompleteCvarPrint (cvar_state_t *cvars, const char *partial, int neededflags);
221 qboolean Cvar_Command (cmd_state_t *cmd);
222 // called by Cmd_ExecuteString when Cmd_Argv(cmd, 0) doesn't match a known
223 // command. Returns true if the command was a variable reference that
224 // was handled. (print or change)
226 void Cvar_SaveInitState(cvar_state_t *cvars);
227 void Cvar_RestoreInitState(cvar_state_t *cvars);
229 void Cvar_UnlockDefaults(cmd_state_t *cmd);
230 void Cvar_LockDefaults_f(cmd_state_t *cmd);
231 void Cvar_ResetToDefaults_All_f(cmd_state_t *cmd);
232 void Cvar_ResetToDefaults_NoSaveOnly_f(cmd_state_t *cmd);
233 void Cvar_ResetToDefaults_SaveOnly_f(cmd_state_t *cmd);
235 void Cvar_WriteVariables (cvar_state_t *cvars, qfile_t *f);
236 // Writes lines containing "set variable value" for all variables
237 // with the archive flag set to true.
239 cvar_t *Cvar_FindVar(cvar_state_t *cvars, const char *var_name, int neededflags, qboolean alias);
240 cvar_t *Cvar_FindVarAfter(cvar_state_t *cvars, const char *prev_var_name, int neededflags);
242 int Cvar_CompleteCountPossible(cvar_state_t *cvars, const char *partial, int neededflags);
243 const char **Cvar_CompleteBuildList(cvar_state_t *cvars, const char *partial, int neededflags);
244 // Added by EvilTypeGuy - functions for tab completion system
245 // Thanks to Fett erich@heintz.com
248 /// Prints a list of Cvars including a count of them to the user console
249 /// Referenced in cmd.c in Cmd_Init hence it's inclusion here.
250 /// Added by EvilTypeGuy eviltypeguy@qeradiant.com
251 /// Thanks to Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
252 void Cvar_List_f(cmd_state_t *cmd);
254 void Cvar_Set_f(cmd_state_t *cmd);
255 void Cvar_SetA_f(cmd_state_t *cmd);
256 void Cvar_Del_f(cmd_state_t *cmd);
257 // commands to create new cvars (or set existing ones)
258 // seta creates an archived cvar (saved to config)
260 /// allocates a cvar by name and returns its address,
261 /// or merely sets its value if it already exists.
262 cvar_t *Cvar_Get(cvar_state_t *cvars, const char *name, const char *value, int flags, const char *newdescription);
264 extern const char *cvar_dummy_description; // ALWAYS the same pointer
266 void Cvar_UpdateAllAutoCvars(cvar_state_t *cvars); // updates ALL autocvars of the active prog to the cvar values (savegame loading)
268 #ifdef FILLALLCVARSWITHRUBBISH
269 void Cvar_FillAll_f(cmd_state_t *cmd);
270 #endif /* FILLALLCVARSWITHRUBBISH */