mirror of
https://git.code.sf.net/p/quake/quakeforge
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143 lines
4.9 KiB
C
143 lines
4.9 KiB
C
/*
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cvar.h
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Configuration variable definitions and prototypes
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_cvar_h
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#define __QF_cvar_h
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/** \defgroup cvar Configuration variables
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\ingroup utils
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*/
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///@{
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#include "QF/qtypes.h"
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#include "QF/quakeio.h"
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typedef struct cvar_s {
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const char *name; ///< The name of the cvar.
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const char *string; ///< The current cvar value as a string.
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const char *default_string; ///< The default value of the cvar.
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int flags; ///< Cvar flags
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/** Callback for when the cvar value changes.
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This allows for more flexibility in what happens when a cvar is
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nodifed than can be achieved with flags alone. While a similar could
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be done using commands, a cvar with a callback and CVAR_ARCHIVE set
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allows the setting to be saved automatically.
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\param var This cvar.
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*/
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void (*callback)(struct cvar_s *var);
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const char *description; ///< for "help" command
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float value; ///< The current cvar value as a float
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int int_val; ///< The current cvar value as an integer
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vec3_t vec; ///< The current cvar value as a vector
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struct cvar_s *next; ///< \internal Linked list of cvars.
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} cvar_t;
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typedef struct cvar_alias_s {
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char *name; ///< The name of the alias.
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cvar_t *cvar; ///< The cvar to which this alias refers
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struct cvar_alias_s *next; ///< \internal LInked list of aliases.
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} cvar_alias_t;
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/** \name cvar_flags
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Zoid| A good CVAR_ROM example is userpath. The code should read "cvar_t
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*fs_userpath = CvarGet("fs_userpath", ".", CVAR_ROM); The user can
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override that with +set fs_userpath \<blah\> since the command line +set
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gets created _before_ the C code for fs_basepath setup is called. The
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code goes "look, the user made fs_basepath already", uses the users value,
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but sets CVAR_ROM as per the call.
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*/
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///@{
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#define CVAR_NONE 0 ///< normal cvar
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#define CVAR_ARCHIVE 1 ///< set to cause it to be saved to
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///< config.cfg
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#define CVAR_USERINFO 2 ///< sent to server on connect or change
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#define CVAR_SERVERINFO 4 ///< sent in response to front end requests
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#define CVAR_NOTIFY 32 ///< Will notify players when changed.
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///< (not implemented)
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#define CVAR_ROM 64 ///< display only, cannot be set
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#define CVAR_USER_CREATED 128 ///< created by a set command
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#define CVAR_LATCH 2048 ///< will change only when C code next does
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///< a Cvar_Get(), so it can't be changed
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///< (not implemented)
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///@}
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// Returns the Cvar if found, creates it with value if not. Description and
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// flags are always updated.
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cvar_t *Cvar_Get (const char *name, const char *value, int cvarflags,
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void (*callback)(cvar_t*), const char *description);
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cvar_t *Cvar_FindAlias (const char *alias_name);
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cvar_t *Cvar_MakeAlias (const char *name, cvar_t *cvar);
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cvar_t *Cvar_RemoveAlias (const char *name);
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// equivelants to "<name> <variable>" typed at the console
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void Cvar_Set (cvar_t *var, const char *value);
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void Cvar_SetValue (cvar_t *var, float value);
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// allows you to change a Cvar's flags without a full Cvar_Get
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void Cvar_SetFlags (cvar_t *var, int cvarflags);
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// returns 0 if not defined or non numeric
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float Cvar_VariableValue (const char *var_name);
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// returns an empty string if not defined
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const char *Cvar_VariableString (const char *var_name);
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// called by Cmd_ExecuteString when Cmd_Argv(0) doesn't match a known
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// command. Returns true if the command was a variable reference that
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// was handled. (print or change)
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qboolean Cvar_Command (void);
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// Writes lines containing "set variable value" for all variables
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// with the archive flag set to true.
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void Cvar_WriteVariables (QFile *f);
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// attempts to match a partial variable name for command line completion
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// returns NULL if nothing fits
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const char *Cvar_CompleteVariable (const char *partial) __attribute__((pure));
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// Added by EvilTypeGuy - functions for tab completion system
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// Thanks to Fett erich@heintz.com
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// Thanks to taniwha
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int Cvar_CompleteCountPossible (const char *partial) __attribute__((pure));
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const char **Cvar_CompleteBuildList (const char *partial);
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// Returns a pointer to the Cvar, NULL if not found
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cvar_t *Cvar_FindVar (const char *var_name);
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void Cvar_Init_Hash (void);
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void Cvar_Init (void);
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extern cvar_t *cvar_vars;
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///@}
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#endif//__QF_cvar_h
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