/* call-seq:
 *   clock.getElapsedTime()             -> Float
 *
 * This function returns the time elapsed since the last call to Reset() 
 * (or the construction of the instance if Reset() has not been called) in seconds.
 */
static VALUE Clock_GetElapsedTime( VALUE self )
{
        sf::Clock *object = NULL;
        Data_Get_Struct( self, sf::Clock, object );
        return rb_float_new( object->GetElapsedTime() );
}