public static List<TOPlayableGame> getPlayableGames(){

        String error = "";
        if (!(Block223Application.getCurrentUserRole() instanceof Player)) {
            error = "Player privileges are required to play a game.";
        }

        Block223 block223 = Block223Application.getBlock223();
        UserRole player = Block223Application.getCurrentUserRole();

        List<TOPlayableGame> result = new ArrayList<>();  //  --> creates List <TOPlayableGame>

        List<Game> games = block223.getGames();

        for(Game agame: games) {

            if(agame.isPublished()) {
                TOPlayableGame to = new TOPlayableGame(agame.getName(),-1,0);
                result.add(to);
            }
        }

        player.getPlayedGames();

        for(Game agame: games) {
            TOPlayableGame to = new TOPlayableGame(agame.getGame().getName(), agame.getId(), agame.getCurrentLevel());
            result.add(to);
        }

        return result;
    }

    public static void selectPlayableGame(String name, int id) throws InvalidInputException {

        String error = "";
        if (!(Block223Application.getCurrentUserRole() instanceof Player)) {
            error = "Player privileges are required to play a game.";
        }

        Game agame = Game.getWithName(name);
        Block223 block223 = Block223Application.getBlock223();
        PlayedGame pgame;

        if(agame == null) {
            throw new InvalidInputException("The game does not exist.");
        }

        else if(agame != null) {

            UserRole player = Block223Application.getCurrentUserRole();
            String username = User.findUsername(player); // LOOK INTO

            if(username == null) {
                throw new InvalidInputException("The game does not exist.");
            }

            pgame = new PlayedGame(username, agame, block223);
            pgame.setPlayer((Player)player); // Player cast <----


        }else pgame = block223.findPlayableGame(id);

        Block223Application.setCurrentPlayableGame(pgame);
    }

    public static void startGame(Block223PlayModeInterface ui) {

        Game game = Block223Application.getCurrentPlayableGame();
        game.play(); // game: PlayedGame

        ui.takeInputs();

        while(game.getPlaystatus() == PlayStatus.Moving) {
            String userinputs = ui.takeInputs();

            Block223Controller.updatePaddlePosition(userinputs);

            game.move();

            if(userinputs == " ") {
                game.pause();
            }
            game.getWaitTime();
            ui.refresh();
        }

        if(game.getPlayStatus() == PlayStatus.GameOver) {
            Block223Application.setCurrentPlayableGame(null);
        }
        else if(game.getPlayer()!= null) {
            Block223 block223 = Block223Application.getBlock223();
            Block223Persistence.save(block223);
        }
    }

    public static TOCurrentlyPlayedGame getCurrentPlayableGame() {

        PlayedGame pgame = Block223Application.getCurrentPlayableGame();

        boolean paused = pgame.getPlayStatus() == PlayStatus.Ready || pgame.getPlayStatus() == PlayStatus.Paused;

        TOCurrentlyPlayedGame result = new TOCurrentlyPlayedGame(pgame.getGame().getName(), paused,
                pgame.getScore(), pgame.getLives(),pgame.getCurrentLevel(), pgame.getPlayername(),
                (int)pgame.getCurrentBallX(), (int)pgame.getCurrentBallY(), (int)pgame.getCurrentPaddleLength(), (int)pgame.getCurrentPaddleX());

        List<PlayedBlockAssignment> blocks = pgame.getBlocks();

        for(PlayedBlockAssignment pblock: blocks) {
            TOCurrentBlock to = new TOCurrentBlock(pblock.getBlock().getRed(),pblock.getBlock().getGreen(),
                    pblock.getBlock().getBlue(),pblock.getBlock().getPoints(),pblock.getX(),pblock.getY(), result);
        }
        return result;
    }