mirror of
https://github.com/Shpoike/Quakespasm.git
synced 2024-11-10 07:21:58 +00:00
111 lines
3.7 KiB
C
111 lines
3.7 KiB
C
/*
|
|
Copyright (C) 1996-2001 Id Software, Inc.
|
|
Copyright (C) 2002-2009 John Fitzgibbons and others
|
|
|
|
This program 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; either version 2
|
|
of the License, or (at your option) any later version.
|
|
|
|
This program 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.
|
|
|
|
See the GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
*/
|
|
|
|
#ifndef __CVAR_H__
|
|
#define __CVAR_H__
|
|
|
|
// cvar.h
|
|
|
|
/*
|
|
|
|
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
|
|
in C code.
|
|
|
|
it is sufficient to initialize a cvar_t with just the first two fields, or
|
|
you can add a ,true flag for variables that you want saved to the configuration
|
|
file when the game is quit:
|
|
|
|
cvar_t r_draworder = {"r_draworder","1"};
|
|
cvar_t scr_screensize = {"screensize","1",true};
|
|
|
|
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:
|
|
Cvar_RegisterVariable (&host_framerate);
|
|
|
|
|
|
C code usually just references a cvar in place:
|
|
if ( r_draworder.value )
|
|
|
|
It could optionally ask for the value to be looked up for a string name:
|
|
if (Cvar_VariableValue ("r_draworder"))
|
|
|
|
Interpreted prog code can access cvars with the cvar(name) or
|
|
cvar_set (name, value) internal functions:
|
|
teamplay = cvar("teamplay");
|
|
cvar_set ("registered", "1");
|
|
|
|
The user can access cvars from the console in two ways:
|
|
r_draworder prints the current value
|
|
r_draworder 0 sets the current value to 0
|
|
Cvars are restricted from having the same names as commands to keep this
|
|
interface from being ambiguous.
|
|
*/
|
|
|
|
typedef void (*cvarcallback_t) (void);
|
|
|
|
typedef struct cvar_s
|
|
{
|
|
const char *name;
|
|
const char *string;
|
|
qboolean archive; // set to true to cause it to be saved to vars.rc
|
|
qboolean server; // notifies players when changed
|
|
float value;
|
|
struct cvar_s *next;
|
|
const char *default_string; //johnfitz -- remember defaults for reset function
|
|
cvarcallback_t callback; //johnfitz
|
|
} cvar_t;
|
|
|
|
void Cvar_RegisterVariable (cvar_t *variable, cvarcallback_t function); //johnfitz -- cvar callback
|
|
// registers a cvar that allready has the name, string, and optionally the
|
|
// archive elements set.
|
|
|
|
void Cvar_Set (const char *var_name, const char *value);
|
|
// equivelant to "<name> <variable>" typed at the console
|
|
|
|
void Cvar_SetValue (const char *var_name, const float value);
|
|
// expands value to a string and calls Cvar_Set
|
|
|
|
float Cvar_VariableValue (const char *var_name);
|
|
// returns 0 if not defined or non numeric
|
|
|
|
const char *Cvar_VariableString (const char *var_name);
|
|
// returns an empty string if not defined
|
|
|
|
const char *Cvar_CompleteVariable (const char *partial);
|
|
// attempts to match a partial variable name for command line completion
|
|
// returns NULL if nothing fits
|
|
|
|
qboolean Cvar_Command (void);
|
|
// called by Cmd_ExecuteString when Cmd_Argv(0) doesn't match a known
|
|
// command. Returns true if the command was a variable reference that
|
|
// was handled. (print or change)
|
|
|
|
void Cvar_WriteVariables (FILE *f);
|
|
// Writes lines containing "set variable value" for all variables
|
|
// with the archive flag set to true.
|
|
|
|
cvar_t *Cvar_FindVar (const char *var_name);
|
|
|
|
void Cvar_Init (void);
|
|
|
|
extern cvar_t *cvar_vars;
|
|
|
|
#endif /* __CVAR_H__ */
|
|
|