952 lines
18 KiB
C++
952 lines
18 KiB
C++
// cvar.c -- dynamic variable tracking
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#include "../game/q_shared.h"
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#include "qcommon.h"
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cvar_t *cvar_vars;
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cvar_t *cvar_cheats;
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int cvar_modifiedFlags;
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#define MAX_CVARS 1024
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cvar_t cvar_indexes[MAX_CVARS];
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int cvar_numIndexes;
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cvar_t *Cvar_Set2( const char *var_name, const char *value, qboolean force);
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static char *lastMemPool = NULL;
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static int memPoolSize;
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//If the string came from the memory pool, don't really free it. The entire
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//memory pool will be wiped during the next level load.
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static void Cvar_FreeString(char *string)
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{
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if(!lastMemPool || string < lastMemPool ||
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string >= lastMemPool + memPoolSize) {
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Z_Free(string);
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}
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}
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/*
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============
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Cvar_ValidateString
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============
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*/
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static qboolean Cvar_ValidateString( const char *s ) {
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if ( !s ) {
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return qfalse;
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}
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if ( strchr( s, '\\' ) ) {
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return qfalse;
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}
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if ( strchr( s, '\"' ) ) {
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return qfalse;
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}
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if ( strchr( s, ';' ) ) {
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return qfalse;
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}
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return qtrue;
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}
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/*
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============
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Cvar_FindVar
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============
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*/
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static cvar_t *Cvar_FindVar( const char *var_name ) {
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cvar_t *var;
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for (var=cvar_vars ; var ; var=var->next) {
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if (!Q_stricmp(var_name, var->name)) {
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return var;
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}
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}
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return NULL;
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}
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/*
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============
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Cvar_VariableValue
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============
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*/
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float Cvar_VariableValue( const char *var_name ) {
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cvar_t *var;
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var = Cvar_FindVar (var_name);
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if (!var)
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return 0;
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return var->value;
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}
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/*
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============
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Cvar_VariableIntegerValue
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============
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*/
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int Cvar_VariableIntegerValue( const char *var_name ) {
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cvar_t *var;
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var = Cvar_FindVar (var_name);
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if (!var)
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return 0;
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return var->integer;
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}
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/*
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============
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Cvar_VariableString
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============
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*/
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char *Cvar_VariableString( const char *var_name ) {
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cvar_t *var;
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var = Cvar_FindVar (var_name);
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if (!var)
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return "";
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return var->string;
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}
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/*
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============
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Cvar_VariableStringBuffer
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============
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*/
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void Cvar_VariableStringBuffer( const char *var_name, char *buffer, int bufsize ) {
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cvar_t *var;
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var = Cvar_FindVar (var_name);
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if (!var) {
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*buffer = 0;
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}
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else {
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Q_strncpyz( buffer, var->string, bufsize );
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}
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}
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/*
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============
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Cvar_CompleteVariable
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============
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*/
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char *Cvar_CompleteVariable( const char *partial ) {
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cvar_t *cvar;
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int len;
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len = strlen(partial);
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if ( !len ) {
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return NULL;
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}
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// check partial match
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for ( cvar=cvar_vars ; cvar ; cvar=cvar->next ) {
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if ( !Q_stricmpn (partial,cvar->name, len) ) {
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if ( (cvar->flags & CVAR_CHEAT) && !cvar_cheats->integer ) {
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continue;
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}
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else {
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return cvar->name;
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}
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}
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}
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return NULL;
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}
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/*
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============
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Cvar_CompleteVariableNext - get the next cvar in alphabetical order.
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============
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*/
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char *Cvar_CompleteVariableNext (char *partial, char *last)
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{
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cvar_t *cvar, *base;
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int len;
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len = strlen(partial);
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if (!len)
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return NULL;
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// this check needed since cvars may be resetting from cmd searches
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base = NULL;
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if(last)
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{
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for (cvar=cvar_vars; cvar; cvar = cvar->next)
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{
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if(!Q_stricmp(last, cvar->name))
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{
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base = cvar->next;
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break;
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}
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}
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if(base == NULL)
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{ //not found, either error or at end of list
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return NULL;
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}
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}
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else
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{
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base = cvar_vars;
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}
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// check partial match
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for (cvar=base ; cvar ; cvar=cvar->next)
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{
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if (!Q_stricmpn (partial,cvar->name, len)) {
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if ( (cvar->flags & CVAR_CHEAT) && !cvar_cheats->integer ) {
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continue;
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}
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else {
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return cvar->name;
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}
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}
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}
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return NULL;
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}
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/*
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============
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Cvar_Get
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If the variable already exists, the value will not be set unless CVAR_ROM
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The flags will be or'ed in if the variable exists.
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============
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*/
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cvar_t *Cvar_Get( const char *var_name, const char *var_value, int flags ) {
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cvar_t *var;
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if ( !var_name || ! var_value ) {
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Com_Error( ERR_FATAL, "Cvar_Get: NULL parameter" );
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}
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if ( !Cvar_ValidateString( var_name ) ) {
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Com_Printf("invalid cvar name string: %s\n", var_name );
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var_name = "BADNAME";
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}
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#if 0 // FIXME: values with backslash happen
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if ( !Cvar_ValidateString( var_value ) ) {
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Com_Printf("invalid cvar value string: %s\n", var_value );
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var_value = "BADVALUE";
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}
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#endif
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var = Cvar_FindVar (var_name);
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if ( var ) {
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// if the C code is now specifying a variable that the user already
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// set a value for, take the new value as the reset value
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if ( ( var->flags & CVAR_USER_CREATED ) && !( flags & CVAR_USER_CREATED )
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&& var_value[0] ) {
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var->flags &= ~CVAR_USER_CREATED;
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Cvar_FreeString( var->resetString );
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var->resetString = CopyString( var_value );
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// ZOID--needs to be set so that cvars the game sets as
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// SERVERINFO get sent to clients
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cvar_modifiedFlags |= flags;
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}
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var->flags |= flags;
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// only allow one non-empty reset string without a warning
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if ( !var->resetString[0] ) {
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// we don't have a reset string yet
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Cvar_FreeString( var->resetString );
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var->resetString = CopyString( var_value );
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} else if ( var_value[0] && strcmp( var->resetString, var_value ) ) {
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Com_Printf( "Warning: cvar \"%s\" given initial values: \"%s\" and \"%s\"\n",
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var_name, var->resetString, var_value );
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}
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// if we have a latched string, take that value now
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if ( var->latchedString ) {
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char *s;
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s = var->latchedString;
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var->latchedString = NULL; // otherwise cvar_set2 would free it
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Cvar_Set2( var_name, s, qtrue );
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Cvar_FreeString( s );
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}
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// use a CVAR_SET for rom sets, get won't override
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#if 0
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// CVAR_ROM always overrides
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if ( flags & CVAR_ROM ) {
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Cvar_Set2( var_name, var_value, qtrue );
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}
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#endif
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return var;
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}
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//
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// allocate a new cvar
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//
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if ( cvar_numIndexes == MAX_CVARS ) {
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Com_Error( ERR_FATAL, "MAX_CVARS" );
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}
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var = &cvar_indexes[cvar_numIndexes];
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cvar_numIndexes++;
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var->name = CopyString (var_name);
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var->string = CopyString (var_value);
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var->modified = qtrue;
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var->modificationCount = 1;
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var->value = atof (var->string);
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var->integer = atoi(var->string);
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var->resetString = CopyString( var_value );
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// link the variable in
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var->next = cvar_vars;
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cvar_vars = var;
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var->flags = flags;
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return var;
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}
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/*
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============
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Cvar_Set2
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============
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*/
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cvar_t *Cvar_Set2( const char *var_name, const char *value, qboolean force ) {
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cvar_t *var;
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Com_DPrintf( "Cvar_Set2: %s %s\n", var_name, value );
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if ( !Cvar_ValidateString( var_name ) ) {
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Com_Printf("invalid cvar name string: %s\n", var_name );
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var_name = "BADNAME";
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}
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#if 0 // FIXME
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if ( value && !Cvar_ValidateString( value ) ) {
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Com_Printf("invalid cvar value string: %s\n", value );
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var_value = "BADVALUE";
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}
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#endif
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var = Cvar_FindVar (var_name);
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if (!var) {
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if ( !value ) {
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return NULL;
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}
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// create it
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if ( !force ) {
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return Cvar_Get( var_name, value, CVAR_USER_CREATED );
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} else {
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return Cvar_Get (var_name, value, 0);
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}
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}
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if (!value ) {
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value = var->resetString;
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}
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// note what types of cvars have been modified (userinfo, archive, serverinfo, systeminfo)
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cvar_modifiedFlags |= var->flags;
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if (!force)
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{
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if (var->flags & CVAR_ROM)
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{
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Com_Printf ("%s is read only.\n", var_name);
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return var;
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}
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if (var->flags & CVAR_INIT)
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{
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Com_Printf ("%s is write protected.\n", var_name);
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return var;
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}
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if (var->flags & CVAR_LATCH)
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{
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if (var->latchedString)
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{
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if (strcmp(value, var->latchedString) == 0)
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return var;
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Cvar_FreeString (var->latchedString);
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}
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else
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{
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if (strcmp(value, var->string) == 0)
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return var;
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}
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Com_Printf ("%s will be changed upon restarting.\n", var_name);
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var->latchedString = CopyString(value);
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var->modified = qtrue;
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var->modificationCount++;
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return var;
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}
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if ( (var->flags & CVAR_CHEAT) && !cvar_cheats->integer )
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{
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Com_Printf ("%s is cheat protected.\n", var_name);
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return var;
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}
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}
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else
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{
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if (var->latchedString)
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{
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Cvar_FreeString (var->latchedString);
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var->latchedString = NULL;
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}
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}
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if (!strcmp(value, var->string))
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return var; // not changed
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var->modified = qtrue;
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var->modificationCount++;
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Cvar_FreeString (var->string); // free the old value string
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var->string = CopyString(value);
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var->value = atof (var->string);
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var->integer = atoi (var->string);
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return var;
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}
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/*
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============
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Cvar_Set
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============
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*/
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void Cvar_Set( const char *var_name, const char *value) {
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Cvar_Set2 (var_name, value, qtrue);
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}
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/*
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============
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Cvar_SetValue
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============
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*/
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void Cvar_SetValue( const char *var_name, float value) {
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char val[32];
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if ( value == (int)value ) {
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Com_sprintf (val, sizeof(val), "%i",(int)value);
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} else {
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Com_sprintf (val, sizeof(val), "%f",value);
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}
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Cvar_Set (var_name, val);
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}
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/*
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============
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Cvar_Reset
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============
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*/
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void Cvar_Reset( const char *var_name ) {
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Cvar_Set2( var_name, NULL, qfalse );
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}
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/*
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============
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Cvar_SetCheatState
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Any testing variables will be reset to the safe values
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============
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*/
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void Cvar_SetCheatState( void ) {
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cvar_t *var;
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// set all default vars to the safe value
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for ( var = cvar_vars ; var ; var = var->next ) {
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if ( var->flags & CVAR_CHEAT) {
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Cvar_Set( var->name, var->resetString );
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}
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}
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}
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/*
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============
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Cvar_Command
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Handles variable inspection and changing from the console
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============
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*/
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qboolean Cvar_Command( void ) {
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cvar_t *v;
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// check variables
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v = Cvar_FindVar (Cmd_Argv(0));
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if (!v) {
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return qfalse;
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}
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// perform a variable print or set
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if ( Cmd_Argc() == 1 ) {
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Com_Printf ("\"%s\" is:\"%s" S_COLOR_WHITE "\" default:\"%s" S_COLOR_WHITE "\"\n", v->name, v->string, v->resetString );
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if ( v->latchedString ) {
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Com_Printf( "latched: \"%s\"\n", v->latchedString );
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}
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return qtrue;
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}
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//JFM toggle test
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char *value;
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value = Cmd_Argv(1);
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if (value[0] =='!') //toggle
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{
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char buff[5];
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sprintf(buff,"%i",!v->value);
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Cvar_Set2 (v->name, buff, qfalse);// toggle the value
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}
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else
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Cvar_Set2 (v->name, value, qfalse);// set the value if forcing isn't required
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return qtrue;
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}
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/*
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============
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Cvar_Toggle_f
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Toggles a cvar for easy single key binding
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============
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*/
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void Cvar_Toggle_f( void ) {
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int v;
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if ( Cmd_Argc() != 2 ) {
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Com_Printf ("usage: toggle <variable>\n");
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return;
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}
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v = Cvar_VariableIntegerValue( Cmd_Argv( 1 ) );
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v = !v;
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Cvar_Set2 (Cmd_Argv(1), va("%i", v), qfalse);
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}
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/*
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============
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Cvar_Set_f
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Allows setting and defining of arbitrary cvars from console, even if they
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weren't declared in C code.
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============
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*/
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void Cvar_Set_f( void ) {
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int i, c, l, len;
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char combined[MAX_STRING_TOKENS];
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c = Cmd_Argc();
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if ( c < 3 ) {
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Com_Printf ("usage: set <variable> <value>\n");
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return;
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}
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combined[0] = 0;
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l = 0;
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for ( i = 2 ; i < c ; i++ ) {
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len = strlen ( Cmd_Argv( i ) + 1 );
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if ( l + len >= MAX_STRING_TOKENS - 2 ) {
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break;
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}
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strcat( combined, Cmd_Argv( i ) );
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if ( i != c-1 ) {
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strcat( combined, " " );
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}
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l += len;
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}
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Cvar_Set2 (Cmd_Argv(1), combined, qfalse);
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}
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/*
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============
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Cvar_SetU_f
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As Cvar_Set, but also flags it as userinfo
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============
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*/
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void Cvar_SetU_f( void ) {
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cvar_t *v;
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if ( Cmd_Argc() != 3 ) {
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Com_Printf ("usage: setu <variable> <value>\n");
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return;
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}
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Cvar_Set_f();
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v = Cvar_FindVar( Cmd_Argv( 1 ) );
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if ( !v ) {
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return;
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}
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v->flags |= CVAR_USERINFO;
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}
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/*
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============
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Cvar_SetS_f
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As Cvar_Set, but also flags it as userinfo
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============
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*/
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void Cvar_SetS_f( void ) {
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cvar_t *v;
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if ( Cmd_Argc() != 3 ) {
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Com_Printf ("usage: sets <variable> <value>\n");
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return;
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|
}
|
|
Cvar_Set_f();
|
|
v = Cvar_FindVar( Cmd_Argv( 1 ) );
|
|
if ( !v ) {
|
|
return;
|
|
}
|
|
v->flags |= CVAR_SERVERINFO;
|
|
}
|
|
|
|
/*
|
|
============
|
|
Cvar_SetA_f
|
|
|
|
As Cvar_Set, but also flags it as archived
|
|
============
|
|
*/
|
|
void Cvar_SetA_f( void ) {
|
|
cvar_t *v;
|
|
|
|
if ( Cmd_Argc() != 3 ) {
|
|
Com_Printf ("usage: seta <variable> <value>\n");
|
|
return;
|
|
}
|
|
Cvar_Set_f();
|
|
v = Cvar_FindVar( Cmd_Argv( 1 ) );
|
|
if ( !v ) {
|
|
return;
|
|
}
|
|
v->flags |= CVAR_ARCHIVE;
|
|
}
|
|
|
|
/*
|
|
============
|
|
Cvar_Reset_f
|
|
============
|
|
*/
|
|
void Cvar_Reset_f( void ) {
|
|
if ( Cmd_Argc() != 2 ) {
|
|
Com_Printf ("usage: reset <variable>\n");
|
|
return;
|
|
}
|
|
Cvar_Reset( Cmd_Argv( 1 ) );
|
|
}
|
|
|
|
/*
|
|
============
|
|
Cvar_WriteVariables
|
|
|
|
Appends lines containing "set variable value" for all variables
|
|
with the archive flag set to qtrue.
|
|
============
|
|
*/
|
|
void Cvar_WriteVariables( fileHandle_t f ) {
|
|
#ifndef _XBOX
|
|
cvar_t *var;
|
|
char buffer[1024];
|
|
|
|
for (var = cvar_vars ; var ; var = var->next) {
|
|
if (var->flags & CVAR_ARCHIVE ) {
|
|
// write the latched value, even if it hasn't taken effect yet
|
|
if ( var->latchedString ) {
|
|
Com_sprintf (buffer, sizeof(buffer), "seta %s \"%s\"\n", var->name, var->latchedString);
|
|
} else {
|
|
Com_sprintf (buffer, sizeof(buffer), "seta %s \"%s\"\n", var->name, var->string);
|
|
}
|
|
FS_Printf (f, "%s", buffer);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
============
|
|
Cvar_List_f
|
|
|
|
============
|
|
*/
|
|
void Cvar_List_f( void ) {
|
|
cvar_t *var;
|
|
int i;
|
|
char *match;
|
|
|
|
if ( Cmd_Argc() > 1 ) {
|
|
match = Cmd_Argv( 1 );
|
|
} else {
|
|
match = NULL;
|
|
}
|
|
|
|
i = 0;
|
|
for (var = cvar_vars ; var ; var = var->next, i++)
|
|
{
|
|
if (match && !Com_Filter(match, var->name, qfalse)) continue;
|
|
|
|
if (var->flags & CVAR_SERVERINFO) {
|
|
Com_Printf("S");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_USERINFO) {
|
|
Com_Printf("U");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_ROM) {
|
|
Com_Printf("R");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_INIT) {
|
|
Com_Printf("I");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_ARCHIVE) {
|
|
Com_Printf("A");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_LATCH) {
|
|
Com_Printf("L");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
if (var->flags & CVAR_CHEAT) {
|
|
if (!cvar_cheats->integer)
|
|
{
|
|
i--;
|
|
continue;
|
|
}
|
|
Com_Printf("C");
|
|
} else {
|
|
Com_Printf(" ");
|
|
}
|
|
|
|
Com_Printf (" %s \"%s\"\n", var->name, var->string);
|
|
}
|
|
|
|
Com_Printf ("\n%i total cvars\n", i);
|
|
}
|
|
|
|
/*
|
|
============
|
|
Cvar_Restart_f
|
|
|
|
Resets all cvars to their hardcoded values
|
|
============
|
|
*/
|
|
void Cvar_Restart_f( void ) {
|
|
cvar_t *var;
|
|
cvar_t **prev;
|
|
|
|
prev = &cvar_vars;
|
|
while ( 1 ) {
|
|
var = *prev;
|
|
if ( !var ) {
|
|
break;
|
|
}
|
|
|
|
// don't mess with rom values, or some inter-module
|
|
// communication will get broken (com_cl_running, etc)
|
|
if ( var->flags & ( CVAR_ROM | CVAR_INIT | CVAR_NORESTART ) ) {
|
|
prev = &var->next;
|
|
continue;
|
|
}
|
|
|
|
// throw out any variables the user created
|
|
if ( var->flags & CVAR_USER_CREATED ) {
|
|
*prev = var->next;
|
|
if ( var->name ) {
|
|
Cvar_FreeString( var->name );
|
|
}
|
|
if ( var->string ) {
|
|
Cvar_FreeString( var->string );
|
|
}
|
|
if ( var->latchedString ) {
|
|
Cvar_FreeString( var->latchedString );
|
|
}
|
|
if ( var->resetString ) {
|
|
Cvar_FreeString( var->resetString );
|
|
}
|
|
// clear the var completely, since we
|
|
// can't remove the index from the list
|
|
memset( var, 0, sizeof( var ) );
|
|
continue;
|
|
}
|
|
Cvar_Set( var->name, var->resetString );
|
|
prev = &var->next;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
=====================
|
|
Cvar_InfoString
|
|
=====================
|
|
*/
|
|
char *Cvar_InfoString( int bit ) {
|
|
static char info[MAX_INFO_STRING];
|
|
cvar_t *var;
|
|
|
|
info[0] = 0;
|
|
|
|
for (var = cvar_vars ; var ; var = var->next) {
|
|
if (var->flags & bit) {
|
|
Info_SetValueForKey (info, var->name, var->string);
|
|
}
|
|
}
|
|
return info;
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Cvar_InfoStringBuffer
|
|
=====================
|
|
*/
|
|
void Cvar_InfoStringBuffer( int bit, char* buff, int buffsize ) {
|
|
Q_strncpyz(buff,Cvar_InfoString(bit),buffsize);
|
|
}
|
|
|
|
/*
|
|
=====================
|
|
Cvar_Register
|
|
|
|
basically a slightly modified Cvar_Get for the interpreted modules
|
|
=====================
|
|
*/
|
|
void Cvar_Register( vmCvar_t *vmCvar, const char *varName, const char *defaultValue, int flags ) {
|
|
cvar_t *cv;
|
|
|
|
cv = Cvar_Get( varName, defaultValue, flags );
|
|
if ( !vmCvar ) {
|
|
return;
|
|
}
|
|
vmCvar->handle = cv - cvar_indexes;
|
|
vmCvar->modificationCount = -1;
|
|
Cvar_Update( vmCvar );
|
|
}
|
|
|
|
|
|
/*
|
|
=====================
|
|
Cvar_Register
|
|
|
|
updates an interpreted modules' version of a cvar
|
|
=====================
|
|
*/
|
|
void Cvar_Update( vmCvar_t *vmCvar ) {
|
|
cvar_t *cv;
|
|
|
|
if ( (unsigned)vmCvar->handle >= cvar_numIndexes ) {
|
|
Com_Error( ERR_DROP, "Cvar_Update: handle out of range" );
|
|
}
|
|
|
|
cv = cvar_indexes + vmCvar->handle;
|
|
|
|
if ( cv->modificationCount == vmCvar->modificationCount ) {
|
|
return;
|
|
}
|
|
if ( !cv->string ) {
|
|
return; // variable might have been cleared by a cvar_restart
|
|
}
|
|
vmCvar->modificationCount = cv->modificationCount;
|
|
Q_strncpyz( vmCvar->string, cv->string, sizeof( vmCvar->string ) );
|
|
vmCvar->value = cv->value;
|
|
vmCvar->integer = cv->integer;
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
Cvar_Init
|
|
|
|
Reads in all archived cvars
|
|
============
|
|
*/
|
|
void Cvar_Init (void) {
|
|
cvar_cheats = Cvar_Get("helpUsObi", "0", CVAR_SYSTEMINFO );
|
|
|
|
Cmd_AddCommand ("toggle", Cvar_Toggle_f);
|
|
Cmd_AddCommand ("set", Cvar_Set_f);
|
|
Cmd_AddCommand ("sets", Cvar_SetS_f);
|
|
Cmd_AddCommand ("setu", Cvar_SetU_f);
|
|
Cmd_AddCommand ("seta", Cvar_SetA_f);
|
|
Cmd_AddCommand ("reset", Cvar_Reset_f);
|
|
Cmd_AddCommand ("cvarlist", Cvar_List_f);
|
|
Cmd_AddCommand ("cvar_restart", Cvar_Restart_f);
|
|
}
|
|
|
|
|
|
static void Cvar_Realloc(char **string, char *memPool, int &memPoolUsed)
|
|
{
|
|
if(string && *string)
|
|
{
|
|
char *temp = memPool + memPoolUsed;
|
|
strcpy(temp, *string);
|
|
memPoolUsed += strlen(*string) + 1;
|
|
Cvar_FreeString(*string);
|
|
*string = temp;
|
|
}
|
|
}
|
|
|
|
|
|
//Turns many small allocation blocks into one big one.
|
|
void Cvar_Defrag(void)
|
|
{
|
|
cvar_t *var;
|
|
int totalMem = 0;
|
|
int nextMemPoolSize;
|
|
|
|
for (var = cvar_vars; var; var = var->next)
|
|
{
|
|
if (var->name) {
|
|
totalMem += strlen(var->name) + 1;
|
|
}
|
|
if (var->string) {
|
|
totalMem += strlen(var->string) + 1;
|
|
}
|
|
if (var->resetString) {
|
|
totalMem += strlen(var->resetString) + 1;
|
|
}
|
|
if (var->latchedString) {
|
|
totalMem += strlen(var->latchedString) + 1;
|
|
}
|
|
}
|
|
|
|
char *mem = (char*)Z_Malloc(totalMem, TAG_SMALL, qfalse);
|
|
nextMemPoolSize = totalMem;
|
|
totalMem = 0;
|
|
|
|
for (var = cvar_vars; var; var = var->next)
|
|
{
|
|
Cvar_Realloc(&var->name, mem, totalMem);
|
|
Cvar_Realloc(&var->string, mem, totalMem);
|
|
Cvar_Realloc(&var->resetString, mem, totalMem);
|
|
Cvar_Realloc(&var->latchedString, mem, totalMem);
|
|
}
|
|
|
|
if(lastMemPool) {
|
|
Z_Free(lastMemPool);
|
|
}
|
|
lastMemPool = mem;
|
|
memPoolSize = nextMemPoolSize;
|
|
}
|
|
|