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.
20 // cvar.c -- dynamic variable tracking
24 cvar_t *cvar_vars = NULL;
25 char *cvar_null_string = "";
32 cvar_t *Cvar_FindVar (const char *var_name)
36 for (var = cvar_vars;var;var = var->next)
37 if (!strcmp (var_name, var->name))
43 cvar_t *Cvar_FindVarAfter (const char *prev_var_name, int neededflags)
49 var = Cvar_FindVar (prev_var_name);
57 // search for the next cvar matching the needed flags
60 if ((var->flags & neededflags) || !neededflags)
72 float Cvar_VariableValue (const char *var_name)
76 var = Cvar_FindVar (var_name);
79 return atof (var->string);
88 const char *Cvar_VariableString (const char *var_name)
92 var = Cvar_FindVar (var_name);
94 return cvar_null_string;
101 Cvar_CompleteVariable
104 const char *Cvar_CompleteVariable (const char *partial)
109 len = strlen(partial);
115 for (cvar=cvar_vars ; cvar ; cvar=cvar->next)
116 if (!strncmp (partial,cvar->name, len))
124 CVar_CompleteCountPossible
126 New function for tab-completion system
128 Thanks to Fett erich@heintz.com
131 int Cvar_CompleteCountPossible (const char *partial)
138 len = strlen(partial);
143 // Loop through the cvars and count all possible matches
144 for (cvar = cvar_vars; cvar; cvar = cvar->next)
145 if (!strncasecmp(partial, cvar->name, len))
152 CVar_CompleteBuildList
154 New function for tab-completion system
156 Thanks to Fett erich@heintz.com
160 const char **Cvar_CompleteBuildList (const char *partial)
165 int sizeofbuf = (Cvar_CompleteCountPossible (partial) + 1) * sizeof (const char *);
168 len = strlen(partial);
169 buf = Mem_Alloc(tempmempool, sizeofbuf + sizeof (const char *));
170 // Loop through the alias list and print all matches
171 for (cvar = cvar_vars; cvar; cvar = cvar->next)
172 if (!strncasecmp(partial, cvar->name, len))
173 buf[bpos++] = cvar->name;
184 void Cvar_SetQuick (cvar_t *var, const char *value)
190 Con_Print("Cvar_SetQuick: var == NULL\n");
194 changed = strcmp(var->string, value);
195 // LordHavoc: don't reallocate when there is no change
199 // LordHavoc: don't reallocate when the buffer is the same size
200 if (!var->string || strlen(var->string) != strlen(value))
202 Z_Free (var->string); // free the old value string
204 var->string = Z_Malloc (strlen(value)+1);
206 strcpy (var->string, value);
207 var->value = atof (var->string);
208 var->integer = (int) var->value;
209 if ((var->flags & CVAR_NOTIFY) && changed && sv.active)
210 SV_BroadcastPrintf("\"%s\" changed to \"%s\"\n", var->name, var->string);
213 void Cvar_Set (const char *var_name, const char *value)
216 var = Cvar_FindVar (var_name);
219 // there is an error in C code if this happens
220 Con_Printf("Cvar_Set: variable %s not found\n", var_name);
223 if (var->flags & CVAR_READONLY)
225 Con_Printf("Cvar_Set: %s is read-only\n", var_name);
229 Cvar_SetQuick(var, value);
237 void Cvar_SetValueQuick(cvar_t *var, float value)
241 if ((float)((int)value) == value)
242 sprintf(val, "%i", (int)value);
244 sprintf(val, "%f", value);
245 Cvar_SetQuick(var, val);
248 void Cvar_SetValue(const char *var_name, float value)
252 if ((float)((int)value) == value)
253 sprintf(val, "%i", (int)value);
255 sprintf(val, "%f", value);
256 Cvar_Set(var_name, val);
261 Cvar_RegisterVariable
263 Adds a freestanding variable to the variable list.
266 void Cvar_RegisterVariable (cvar_t *variable)
270 // first check to see if it has already been defined
271 if (Cvar_FindVar (variable->name))
273 Con_Printf("Can't register variable %s, already defined\n", variable->name);
277 // check for overlap with a command
278 if (Cmd_Exists (variable->name))
280 Con_Printf("Cvar_RegisterVariable: %s is a command\n", variable->name);
284 // copy the value off, because future sets will Z_Free it
285 oldstr = variable->string;
286 variable->string = Z_Malloc (strlen(variable->string)+1);
287 strcpy (variable->string, oldstr);
288 variable->value = atof (variable->string);
289 variable->integer = (int) variable->value;
291 // link the variable in
292 variable->next = cvar_vars;
293 cvar_vars = variable;
300 Handles variable inspection and changing from the console
303 qboolean Cvar_Command (void)
308 v = Cvar_FindVar (Cmd_Argv(0));
312 // perform a variable print or set
315 // only print if host_initialized (otherwise it could print twice if this is in a script)
316 if (host_initialized)
317 Con_Printf("\"%s\" is \"%s\"\n", v->name, v->string);
321 Cvar_Set (v->name, Cmd_Argv(1));
330 Writes lines containing "set variable value" for all variables
331 with the archive flag set to true.
334 void Cvar_WriteVariables (qfile_t *f)
338 for (var = cvar_vars ; var ; var = var->next)
339 if (var->flags & CVAR_SAVE)
340 FS_Printf(f, "%s \"%s\"\n", var->name, var->string);
344 // Added by EvilTypeGuy eviltypeguy@qeradiant.com
345 // 2000-01-09 CvarList command By Matthias "Maddes" Buecher, http://www.inside3d.com/qip/
351 void Cvar_List_f (void)
359 partial = Cmd_Argv (1);
360 len = strlen(partial);
369 for (cvar = cvar_vars; cvar; cvar = cvar->next)
371 if (partial && strncmp (partial,cvar->name,len))
374 Con_Printf("%s is \"%s\"\n", cvar->name, cvar->string);
378 Con_Printf("%i cvar(s)", count);
380 Con_Printf(" beginning with \"%s\"", partial);
383 // 2000-01-09 CvarList command by Maddes