Objects

// Container
std::list< GameObject* > objects;

// Step
for ( std::list< GameObject* >::iterator it = objects.begin(); it != objects.end(); ++it )
{
    ( * it )->StepEvent();
}

SortObjectsByDepth(); // Just one of my functions, you don't need to worry about that. :P

// Events
for ( std::list< GameObject* >::iterator it = objects.begin(); it != objects.end(); ++it )
{
    ( * it )->StepEvent( event );
}

// Draw
for ( std::list< GameObject* >::iterator it = objects.begin(); it != objects.end(); ++it )
{
    ( * it )->Draw( window );
}

// Termination
for ( std::list< GameObject* >::iterator it = objects.begin(); it != objects.end(); ++it )
{
    delete ( * it );
}

objects.clear();

// Adding objects - Example 1
objects.push_back( new Block( Scene, pos, theme, blockType ) );

// Adding objects - Example 2
objects.push_back( new Player( Scene, pos, drawingStyle ) );