5 files changed, 169 insertions, 12 deletions

diff --git a/code/qcommon/common.c b/code/qcommon/common.c
index f100b82..5888592 100644
--- a/code/qcommon/common.c
+++ b/code/qcommon/common.c
@@ -473,10 +473,12 @@ qboolean Com_AddStartupCommands( void ) {
 			continue;
 		}
 
-		// set commands won't override menu startup
-		if ( Q_stricmpn( com_consoleLines[i], "set", 3 ) ) {
-			added = qtrue;
+		// set commands already added with Com_StartupVariable
+		if ( !Q_stricmpn( com_consoleLines[i], "set", 3 ) ) {
+			continue;
 		}
+
+		added = qtrue;
 		Cbuf_AddText( com_consoleLines[i] );
 		Cbuf_AddText( "\n" );
 	}
@@ -2562,8 +2564,10 @@ void Com_Init( char *commandLine ) {
   // get dedicated here for proper hunk megs initialization
 #ifdef DEDICATED
 	com_dedicated = Cvar_Get ("dedicated", "1", CVAR_INIT);
+	Cvar_CheckRange( com_dedicated, 1, 2, qtrue );
 #else
 	com_dedicated = Cvar_Get ("dedicated", "0", CVAR_LATCH);
+	Cvar_CheckRange( com_dedicated, 0, 2, qtrue );
 #endif
 	// allocate the stack based hunk allocator
 	Com_InitHunkMemory();
diff --git a/code/qcommon/cvar.c b/code/qcommon/cvar.c
index 2526e38..fc2a9fa 100644
--- a/code/qcommon/cvar.c
+++ b/code/qcommon/cvar.c
@@ -189,6 +189,109 @@ void	Cvar_CommandCompletion( void(*callback)(const char *s) ) {
 	}
 }
 
+/*
+============
+Cvar_Validate
+============
+*/
+static const char *Cvar_Validate( cvar_t *var,
+    const char *value, qboolean warn )
+{
+	static char s[ MAX_CVAR_VALUE_STRING ];
+	float valuef;
+	qboolean changed = qfalse;
+
+	if( !var->validate )
+		return value;
+
+	if( !value )
+		return value;
+
+	if( Q_isanumber( value ) )
+	{
+		valuef = atof( value );
+
+		if( var->integral )
+		{
+			if( !Q_isintegral( valuef ) )
+			{
+				if( warn )
+					Com_Printf( "WARNING: cvar '%s' must be integral", var->name );
+
+				valuef = (int)valuef;
+				changed = qtrue;
+			}
+		}
+	}
+	else
+	{
+		if( warn )
+			Com_Printf( "WARNING: cvar '%s' must be numeric", var->name );
+
+		valuef = atof( var->resetString );
+		changed = qtrue;
+	}
+
+	if( valuef < var->min )
+	{
+		if( warn )
+		{
+			if( changed )
+				Com_Printf( " and is" );
+			else
+				Com_Printf( "WARNING: cvar '%s'", var->name );
+
+			if( Q_isintegral( var->min ) )
+				Com_Printf( " out of range (min %d)", (int)var->min );
+			else
+				Com_Printf( " out of range (min %f)", var->min );
+		}
+
+		valuef = var->min;
+		changed = qtrue;
+	}
+	else if( valuef > var->max )
+	{
+		if( warn )
+		{
+			if( changed )
+				Com_Printf( " and is" );
+			else
+				Com_Printf( "WARNING: cvar '%s'", var->name );
+
+			if( Q_isintegral( var->max ) )
+				Com_Printf( " out of range (max %d)", (int)var->max );
+			else
+				Com_Printf( " out of range (max %f)", var->max );
+		}
+
+		valuef = var->max;
+		changed = qtrue;
+	}
+
+	if( changed )
+	{
+		if( Q_isintegral( valuef ) )
+		{
+			Com_sprintf( s, sizeof( s ), "%d", (int)valuef );
+
+			if( warn )
+				Com_Printf( ", setting to %d\n", (int)valuef );
+		}
+		else
+		{
+			Com_sprintf( s, sizeof( s ), "%f", valuef );
+
+			if( warn )
+				Com_Printf( ", setting to %f\n", valuef );
+		}
+
+		return s;
+	}
+	else
+		return value;
+}
+
 
 /*
 ============
@@ -220,6 +323,8 @@ cvar_t *Cvar_Get( const char *var_name, const char *var_value, int flags ) {
 
 	var = Cvar_FindVar (var_name);
 	if ( var ) {
+		var_value = Cvar_Validate( var, var_value, qfalse );
+
 		// if the C code is now specifying a variable that the user already
 		// set a value for, take the new value as the reset value
 		if ( ( var->flags & CVAR_USER_CREATED ) && !( flags & CVAR_USER_CREATED )
@@ -282,6 +387,7 @@ cvar_t *Cvar_Get( const char *var_name, const char *var_value, int flags ) {
 	var->value = atof (var->string);
 	var->integer = atoi(var->string);
 	var->resetString = CopyString( var_value );
+	var->validate = qfalse;
 
 	// link the variable in
 	var->next = cvar_vars;
@@ -364,6 +470,8 @@ cvar_t *Cvar_Set2( const char *var_name, const char *value, qboolean force ) {
 		value = var->resetString;
 	}
 
+	value = Cvar_Validate( var, value, qtrue );
+
 	if((var->flags & CVAR_LATCH) && var->latchedString) {
 		if(!strcmp(value,var->latchedString))
 			return var;
@@ -879,6 +987,22 @@ void Cvar_InfoStringBuffer( int bit, char* buff, int buffsize ) {
 
 /*
 =====================
+Cvar_CheckRange
+=====================
+*/
+void Cvar_CheckRange( cvar_t *var, float min, float max, qboolean integral )
+{
+	var->validate = qtrue;
+	var->min = min;
+	var->max = max;
+	var->integral = integral;
+
+	// Force an initial range check
+	Cvar_Set( var->name, var->string );
+}
+
+/*
+=====================
 Cvar_Register
 
 basically a slightly modified Cvar_Get for the interpreted modules
@@ -899,7 +1023,7 @@ void	Cvar_Register( vmCvar_t *vmCvar, const char *varName, const char *defaultVa
 
 /*
 =====================
-Cvar_Register
+Cvar_Update
 
 updates an interpreted modules' version of a cvar
 =====================
diff --git a/code/qcommon/q_shared.c b/code/qcommon/q_shared.c
index 1bc8076..e9f59af 100644
--- a/code/qcommon/q_shared.c
+++ b/code/qcommon/q_shared.c
@@ -726,6 +726,28 @@ char* Q_strrchr( const char* string, int c )
 	return sp;
 }
 
+qboolean Q_isanumber( const char *s )
+{
+#ifdef Q3_VM
+	//FIXME: implement
+	return qfalse;
+#else
+	char *p;
+
+	if( *s == '\0' )
+		return qfalse;
+
+	strtof( s, &p );
+
+	return *p == '\0';
+#endif
+}
+
+qboolean Q_isintegral( float f )
+{
+	return (int)f == f;
+}
+
 /*
 =============
 Q_strncpyz
diff --git a/code/qcommon/q_shared.h b/code/qcommon/q_shared.h
index 9aa19d9..248fcf1 100644
--- a/code/qcommon/q_shared.h
+++ b/code/qcommon/q_shared.h
@@ -678,6 +678,8 @@ int Q_isprint( int c );
 int Q_islower( int c );
 int Q_isupper( int c );
 int Q_isalpha( int c );
+qboolean Q_isanumber( const char *s );
+qboolean Q_isintegral( float f );
 
 // portable case insensitive compare
 int		Q_stricmp (const char *s1, const char *s2);
@@ -786,15 +788,19 @@ default values.
 
 // nothing outside the Cvar_*() functions should modify these fields!
 typedef struct cvar_s {
-	char		*name;
-	char		*string;
-	char		*resetString;		// cvar_restart will reset to this value
-	char		*latchedString;		// for CVAR_LATCH vars
-	int			flags;
+	char			*name;
+	char			*string;
+	char			*resetString;		// cvar_restart will reset to this value
+	char			*latchedString;		// for CVAR_LATCH vars
+	int				flags;
 	qboolean	modified;			// set each time the cvar is changed
-	int			modificationCount;	// incremented each time the cvar is changed
-	float		value;				// atof( string )
-	int			integer;			// atoi( string )
+	int				modificationCount;	// incremented each time the cvar is changed
+	float			value;				// atof( string )
+	int				integer;			// atoi( string )
+	qboolean	validate;
+	qboolean	integral;
+	float			min;
+	float			max;
 	struct cvar_s *next;
 	struct cvar_s *hashNext;
 } cvar_t;
diff --git a/code/qcommon/qcommon.h b/code/qcommon/qcommon.h
index 58b0a29..c5efef8 100644
--- a/code/qcommon/qcommon.h
+++ b/code/qcommon/qcommon.h
@@ -528,6 +528,7 @@ char	*Cvar_InfoString_Big( int bit );
 // returns an info string containing all the cvars that have the given bit set
 // in their flags ( CVAR_USERINFO, CVAR_SERVERINFO, CVAR_SYSTEMINFO, etc )
 void	Cvar_InfoStringBuffer( int bit, char *buff, int buffsize );
+void Cvar_CheckRange( cvar_t *cv, float minVal, float maxVal, qboolean shouldBeIntegral );
 
 void	Cvar_Restart_f( void );