/*
============
Cvar_Register
Adds a freestanding variable to the variable list.
If the variable already exists, the value will not be set
The flags will be or'ed in if the variable exists.
============
*/
EXTERNC void Cvar_Register (cvar_t *var)
{
char string[512];
int key;
cvar_t *old;
// first check to see if it has already been defined
old = Cvar_Find (var->name);
if (old && !(old->flags & CVAR_DYNAMIC)) {
if (old == var)
return;
Com_Printf ("Can't register variable %s, already defined\n", var->name);
return;
}
#if 0
// check for overlap with a command
if (Cmd_Exists (var->name)) {
Com_Printf ("Cvar_Register: %s is a command\n", var->name);
return;
}
#endif
if (old)
{
var->flags |= old->flags & ~(CVAR_DYNAMIC|CVAR_TEMP);
strlcpy (string, old->string, sizeof(string));
Cvar_Delete (old->name);
if (!(var->flags & CVAR_ROM))
var->string = Q_strdup (string);
else
var->string = Q_strdup (var->string);
}
else
{
// allocate the string on heap because future sets will Q_free it
var->string = Q_strdup (var->string);
}
var->value = Q_atof (var->string);
// link the variable in
key = Com_HashKey (var->name);
var->hash_next = cvar_hash[key];
cvar_hash[key] = var;
var->next = cvar_vars;
cvar_vars = var;
#ifndef CLIENTONLY
if (var->flags & CVAR_SERVERINFO)
SV_ServerinfoChanged (var->name, var->string);
#endif
#ifndef SERVERONLY
if (var->flags & CVAR_USERINFO)
CL_UserinfoChanged (var->name, var->string);
#endif
}
/*
============
Cvar_Set
============
*/
void Cvar_Set (cvar_t *var, const char *string)
{
static qbool changing = false;
if (!var)
return;
if (var->flags & CVAR_ROM)
{
Com_Printf ("\"%s\" is write protected\n", var->name);
return;
}
if ((var->flags & CVAR_INIT) && host_initialized)
{
//if (cl_warncmd.value)
// Com_Printf ("\"%s\" cannot be changed from the console\n", var->name);
return;
}
if (var->OnChange && !changing) {
qbool cancel = false;
changing = true;
var->OnChange(var, (char *)string, &cancel);
changing = false;
if (cancel)
return;
}
// FIXME, avoid reallocation if the new string has same size?
Q_free (var->string);
var->string = Q_strdup (string);
var->value = Q_atof (var->string);
#ifndef CLIENTONLY
if (var->flags & CVAR_SERVERINFO)
SV_ServerinfoChanged (var->name, var->string);
#endif
#ifndef SERVERONLY
if (var->flags & CVAR_USERINFO)
CL_UserinfoChanged (var->name, var->string);
#endif
}
/*
Adds a freestanding variable to the variable list.
If the variable already exists, the value will not be set
The flags will be or'ed in if the variable exists.
*/
void Cvar_Register (cvar_t *var)
{
char string[512];
int key;
cvar_t *old;
// first check to see if it has already been defined
old = Cvar_Find (var->name);
// we alredy register cvar, warn about it
if (old && !(old->flags & CVAR_USER_CREATED))
{
// allow re-register lacthed cvar
if (old->flags & CVAR_LATCH)
{
// if we have a latched string, take that value now
if ( old->latchedString )
{
// I did't want bother with all this CVAR_ROM and OnChange handler, just set value
Q_free(old->string);
old->string = old->latchedString;
old->latchedString = NULL;
old->value = Q_atof (old->string);
old->integer = Q_atoi (old->string);
StringToRGB_W(old->string, old->color);
old->modified = true;
}
Cvar_AutoReset(old);
return;
}
// warn if CVAR_SILENT is not set
if (!(old->flags & CVAR_SILENT))
Com_Printf ("Can't register variable %s, already defined\n", var->name);
return;
}
if (old && old == var)
Sys_Error("Cvar_Register: something wrong with %s", var->name);
/* // check for overlap with a command
if (Cmd_Exists (var->name)) {
Com_Printf ("Cvar_Register: %s is a command\n", var->name);
return;
} */
if (var->defaultvalue)
Sys_Error("Cvar_Register: defaultvalue alredy set for %s", var->name);
var->defaultvalue = Q_strdup(var->string);
if (old)
{
var->flags |= old->flags & ~(CVAR_USER_CREATED|CVAR_TEMP);
strlcpy (string, (var->flags & CVAR_ROM) ? var->string : old->string, sizeof(string));
Cvar_Delete (old->name);
var->string = Q_strdup(string);
}
else
{
// allocate the string on zone because future sets will Q_freeit
var->string = Q_strdup(var->string);
}
var->value = Q_atof (var->string);
var->integer = Q_atoi (var->string);
StringToRGB_W(var->string, var->color);
var->modified = true;
// link the variable in
key = Com_HashKey (var->name) % VAR_HASHPOOL_SIZE;
var->hash_next = cvar_hash[key];
cvar_hash[key] = var;
var->next = cvar_vars;
cvar_vars = var;
#ifdef WITH_TCL
TCL_RegisterVariable (var);
#endif
Cvar_AddCvarToGroup(var);
#ifndef CLIENTONLY
if (var->flags & CVAR_SERVERINFO)
SV_ServerinfoChanged (var->name, var->string);
#endif
if (var->flags & CVAR_USERINFO)
CL_UserinfoChanged (var->name, var->string);
}
void Cvar_SetEx(cvar_t *var, char *value, qbool ignore_callback)
{
extern cvar_t cl_warncmd;
extern cvar_t re_subi[10];
static qbool changing = false;
float test;
char *new_val;
if (!var)
return;
// C code may wrongly use Cvar_Set on non registered variable, some 99.99% accurate check
// variables for internal triggers are not registered intentionally
if (var < re_subi || var > re_subi + 9) {
if (!var->next /* this is fast, but a bit flawed logic */ && !Cvar_Find(var->name)) {
Com_Printf("Cvar_Set: on non linked var %s\n", var->name);
return;
}
}
if (var->flags & CVAR_ROM) {
Com_Printf ("\"%s\" is write protected\n", var->name);
return;
}
if (var->flags & CVAR_RULESET_MIN) {
test = Q_atof (value);
if (test < var->minrulesetvalue) {
Com_Printf ("min \"%s\" is limited to %0.2f\n", var->name,var->minrulesetvalue);
return;
}
}
if (var->flags & CVAR_RULESET_MAX) {
test = Q_atof (value);
if (test > var->maxrulesetvalue) {
Com_Printf ("max \"%s\" is limited to %0.2f\n", var->name,var->maxrulesetvalue);
return;
}
}
if ((var->flags & CVAR_INIT) && host_initialized) {
if (cl_warncmd.value || developer.value)
Com_Printf ("\"%s\" can only be changed with \"+set %s %s\" on the command line.\n", var->name, var->name, value);
return;
}
// We do this before OnChange check, which means no OnChange check for latched cvars.
if (var->flags & CVAR_LATCH)
{
if (var->latchedString)
{
if (strcmp(value, var->latchedString) == 0)
return; // latched string alredy has this value
Q_free(var->latchedString); // switching latching string to other, so free it
}
else
{
if (strcmp(value, var->string) == 0)
return; // we change string value to the same, do no create latched string then
}
// HACK: sometime I need somehow silently change latched cvars.
// So, flag CVAR_SILENT for latched cvars mean no this warning.
// However keep this flag always on latched variable is stupid imo.
// So, do not mix CVAR_LATCHED | CVAR_SILENT in cvar definition.
if ( !(var->flags & CVAR_SILENT) ) {
const char* restartcmd = "vid_restart (video/graphics)";
if (strncmp(var->name, "in_", 3) == 0) {
restartcmd = "in_restart (input)";
}
else if (strncmp(var->name, "s_", 2) == 0) {
restartcmd = "s_restart (sound)";
}
Com_Printf ("%s needs %s to take effect.\n", var->name, restartcmd);
}
var->latchedString = Q_strdup(value);
var->modified = true; // set to true even car->string is not changed yet, that how q3 does
return;
}
if (!ignore_callback && var->OnChange && !changing) {
qbool cancel = false;
changing = true;
var->OnChange(var, value, &cancel);
changing = false;
if (cancel)
return;
}
// dup string first (before free) since 'value' and 'var->string' can point at the same memory area.
new_val = Q_strdup(value);
// free the old value string.
Q_free(var->string);
var->string = new_val;
var->value = Q_atof (var->string);
var->integer = Q_atoi (var->string);
StringToRGB_W(var->string, var->color);
Cvar_AutoReset(var);
var->modified = true;
#ifndef CLIENTONLY
if (var->flags & CVAR_SERVERINFO)
SV_ServerinfoChanged (var->name, var->string);
#endif
if (var->flags & CVAR_USERINFO)
CL_UserinfoChanged (var->name, var->string);
}
