cvar.c

/*
Copyright (C) 1996-1997 Id Software, Inc.

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.

*/
// cvar.c -- dynamic variable tracking

#include "quakedef.h"

cvar_t	*cvar_vars;
char	*cvar_null_string = "";

/*
============
Cvar_FindVar
============
*/
cvar_t *Cvar_FindVar (char *var_name)
{
	cvar_t	*var;

	for (var=cvar_vars ; var ; var=var->next)
		if (!strcmp (var_name, var->name))
			return var;

	return NULL;
}

/*
============
Cvar_VariableValue
============
*/
float	Cvar_VariableValue (char *var_name)
{
	cvar_t	*var;

	var = Cvar_FindVar (var_name);
	if (!var)
		return 0;
	return atof (var->string);
}


/*
============
Cvar_VariableString
============
*/
char *Cvar_VariableString (char *var_name)
{
	cvar_t *var;

	var = Cvar_FindVar (var_name);
	if (!var)
		return cvar_null_string;
	return var->string;
}


/*
============
Cvar_CompleteVariable
============
*/
char *Cvar_CompleteVariable (char *partial)
{
	cvar_t		*cvar;
	int			len;

	len = strlen(partial);

	if (!len)
		return NULL;

	// check functions
	for (cvar=cvar_vars ; cvar ; cvar=cvar->next)
		if (!strncmp (partial,cvar->name, len))
			return cvar->name;

	return NULL;
}

/*
============
Cvar_Set
============
*/
void Cvar_Set (char *var_name, char *value)
{
	cvar_t	*var;
	qboolean changed;

	var = Cvar_FindVar (var_name);
	if (!var)
	{	// there is an error in C code if this happens
		Con_Printf ("Cvar_Set: variable %s not found\n", var_name);
		return;
	}

	changed = strcmp(var->string, value);

	Z_Free (var->string);	// free the old value string

	var->string = Z_Malloc (strlen(value)+1);
	strcpy (var->string, value);
	var->value = atof (var->string);
	if ((var->server == 1) && changed)  // JPG - so that server = 2 will mute the variable
	{
		if (sv.active)
			SV_BroadcastPrintf ("\"%s\" changed to \"%s\"\n", var->name, var->string);
	}

	// JPG 3.00 - rcon (64 doesn't mean anything special, but we need some extra space because NET_MAXMESSAGE == RCON_BUFF_SIZE)
	if (rcon_active && (rcon_message.cursize < rcon_message.maxsize - strlen(var->name) - strlen(var->string) - 64))
	{
		rcon_message.cursize--;
		MSG_WriteString(&rcon_message, va("\"%s\" set to \"%s\"\n", var->name, var->string));
	}
}

/*
============
Cvar_SetValue
============
*/
void Cvar_SetValue (char *var_name, float value)
{
	char	val[32];

	dpsnprintf (val, sizeof(val), "%f",value);
	Cvar_Set (var_name, val);
}


/*
============
Cvar_RegisterVariable

Adds a freestanding variable to the variable list.
============
*/
void Cvar_RegisterVariable (cvar_t *variable)
{
	char	*oldstr;

// first check to see if it has allready been defined
	if (Cvar_FindVar (variable->name))
	{
		Con_Printf ("Can't register variable %s, already defined\n", variable->name);	// JPG 3.02 allready->already
		return;
	}

// check for overlap with a command
	if (Cmd_Exists (variable->name))
	{
		Con_Printf ("Cvar_RegisterVariable: %s is a command\n", variable->name);
		return;
	}

// copy the value off, because future sets will Z_Free it
	oldstr = variable->string;
	variable->string = Z_Malloc (strlen(variable->string)+1);
	strcpy (variable->string, oldstr);
	variable->value = atof (variable->string);

// link the variable in
	variable->next = cvar_vars;
	cvar_vars = variable;
}

/*
============
Cvar_Command

Handles variable inspection and changing from the console
============
*/
qboolean	Cvar_Command (void)
{
	cvar_t			*v;

// check variables
	v = Cvar_FindVar (Cmd_Argv(0));
	if (!v)
		return false;

// perform a variable print or set
	if (Cmd_Argc() == 1)
	{
		Con_Printf ("\"%s\" is \"%s\"\n", v->name, v->string);
		return true;
	}

	Cvar_Set (v->name, Cmd_Argv(1));
	return true;
}


/*
============
Cvar_WriteVariables

Writes lines containing "set variable value" for all variables
with the archive flag set to true.
============
*/
void Cvar_WriteVariables (FILE *f)
{
	cvar_t	*var;

	for (var = cvar_vars ; var ; var = var->next)
		if (var->archive)
			fprintf (f, "%s \"%s\"\n", var->name, var->string);
}


//============================================================================


cvar_t	lcd_x = {"lcd_x","0"};
cvar_t	lcd_yaw = {"lcd_yaw","0"};
cvar_t	v_centermove = {"v_centermove", "0.15", false};
cvar_t	v_centerspeed = {"v_centerspeed","500"};
cvar_t	v_iyaw_cycle = {"v_iyaw_cycle", "2", false};
cvar_t	v_iroll_cycle = {"v_iroll_cycle", "0.5", false};
cvar_t	v_ipitch_cycle = {"v_ipitch_cycle", "1", false};
cvar_t	v_iyaw_level = {"v_iyaw_level", "0.3", false};
cvar_t	v_iroll_level = {"v_iroll_level", "0.1", false};
cvar_t	v_ipitch_level = {"v_ipitch_level", "0.3", false};
cvar_t	v_idlescale = {"v_idlescale", "0", false};
cvar_t	crosshair = {"crosshair", "0", true};
cvar_t	cl_crossx = {"cl_crossx", "0", false};
cvar_t	cl_crossy = {"cl_crossy", "0", false};
cvar_t	gl_cshiftpercent = {"gl_cshiftpercent", "100", false};
cvar_t	scr_ofsx = {"scr_ofsx","0", false};
cvar_t	scr_ofsy = {"scr_ofsy","0", false};
cvar_t	scr_ofsz = {"scr_ofsz","0", false};
cvar_t	cl_rollspeed = {"cl_rollspeed", "200"};
cvar_t	cl_rollangle = {"cl_rollangle", "2.0"};
cvar_t	cl_bob = {"cl_bob","0.02", false};
cvar_t	cl_bobcycle = {"cl_bobcycle","0.6", false};
cvar_t	cl_bobup = {"cl_bobup","0.5", false};
cvar_t	v_kicktime = {"v_kicktime", "0.5", false};
cvar_t	v_kickroll = {"v_kickroll", "0.6", false};
cvar_t	v_kickpitch = {"v_kickpitch", "0.6", false};
cvar_t	v_gamma = {"gamma", "1", true};
cvar_t	pq_waterblend = {"pq_waterblend", "1"};
cvar_t	pq_quadblend = {"pq_quadblend", "1"};
cvar_t	pq_ringblend = {"pq_ringblend", "1"};
cvar_t	pq_pentblend = {"pq_pentblend", "1"};
cvar_t	pq_suitblend = {"pq_suitblend", "1"};
cvar_t	r_polyblend = {"r_polyblend", "1"};
cvar_t	con_notifytime = {"con_notifytime","3"};
cvar_t	cl_name = {"cl_name", "player", true};
cvar_t	cl_color = {"_cl_color", "0", true};
cvar_t	pq_confilter = {"pq_confilter", "0"};
cvar_t	pq_timestamp = {"pq_timestamp", "0"};
cvar_t	pq_removecr = {"pq_removecr", "1"};


/*
=============
Cvar_Init

These aren't actually used for anything but I left them
intact because some mods might use them.
=============
*/
void Cvar_Init (void)
{
	// from view.c
	Cvar_RegisterVariable (&lcd_x);
	Cvar_RegisterVariable (&lcd_yaw);
	Cvar_RegisterVariable (&v_centermove);
	Cvar_RegisterVariable (&v_centerspeed);
	Cvar_RegisterVariable (&v_iyaw_cycle);
	Cvar_RegisterVariable (&v_iroll_cycle);
	Cvar_RegisterVariable (&v_ipitch_cycle);
	Cvar_RegisterVariable (&v_iyaw_level);
	Cvar_RegisterVariable (&v_iroll_level);
	Cvar_RegisterVariable (&v_ipitch_level);
	Cvar_RegisterVariable (&v_idlescale);
	Cvar_RegisterVariable (&crosshair);
	Cvar_RegisterVariable (&cl_crossx);
	Cvar_RegisterVariable (&cl_crossy);
	Cvar_RegisterVariable (&gl_cshiftpercent);
	Cvar_RegisterVariable (&scr_ofsx);
	Cvar_RegisterVariable (&scr_ofsy);
	Cvar_RegisterVariable (&scr_ofsz);
	Cvar_RegisterVariable (&cl_rollspeed);
	Cvar_RegisterVariable (&cl_rollangle);
	Cvar_RegisterVariable (&cl_bob);
	Cvar_RegisterVariable (&cl_bobcycle);
	Cvar_RegisterVariable (&cl_bobup);
	Cvar_RegisterVariable (&v_kicktime);
	Cvar_RegisterVariable (&v_kickroll);
	Cvar_RegisterVariable (&v_kickpitch);
	Cvar_RegisterVariable (&v_gamma);
	Cvar_RegisterVariable (&pq_waterblend);
	Cvar_RegisterVariable (&pq_quadblend);
	Cvar_RegisterVariable (&pq_pentblend);
	Cvar_RegisterVariable (&pq_ringblend);
	Cvar_RegisterVariable (&pq_suitblend);
	Cvar_RegisterVariable (&r_polyblend);

	// from console.c
	Cvar_RegisterVariable (&con_notifytime);
	Cvar_RegisterVariable (&pq_confilter);
	Cvar_RegisterVariable (&pq_timestamp);
	Cvar_RegisterVariable (&pq_removecr);

	// for chat messages
	Cvar_RegisterVariable (&cl_name);
}