private Content createContent(String line, int set)
    {
        line = Utils.formatString(line);
        switch(set){
            case Types.VGDL_GAME_DEF:
                return new GameContent(line);

            case Types.VGDL_SPRITE_SET:
                return new SpriteContent(line);
            //
            case Types.VGDL_INTERACTION_SET:
                return new InteractionContent(line);

            case Types.VGDL_LEVEL_MAPPING:
                return new MappingContent(line);

            case Types.VGDL_TERMINATION_SET:
                return new TerminationContent(line);
        }
        return null;
    }