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Christian Lawrence
Christian Lawrence
3,941 Points

Java Game GUI pass a command

This was originally a text based game played in the terminal window. I'm trying to get the buttons to process directional commands, so when a users presses "East" the move into the east room. However I get an error when trying to pass an arg to the goRoom(); method.

(this was based on the world of zuul game)

private boolean processCommand(Command command) 
        boolean wantToQuit = false;

        CommandWord commandWord = command.getCommandWord();

        if(commandWord == CommandWord.UNKNOWN) {
            System.out.println("I don't know what you mean...");
            return false;

        if (commandWord == CommandWord.HELP) {
        else if (commandWord == CommandWord.GO) {
        else if (commandWord == CommandWord.MAP) {
            System.out.println("Your current location is at " + currentRoom.getCurrentRoomName()); 
           // The room you are in
        else if (commandWord == CommandWord.CODE) {
            wantToQuit = code(command);
        else if (commandWord == CommandWord.FAKE) {
        else if (commandWord == CommandWord.QUIT) {
            wantToQuit = quit(command);
        // else command not recognised.
        return wantToQuit;

 private void goRoom(Command command) 
        if(!command.hasSecondWord()) {
            // if there is no second word, we don't know where to go...
            System.out.println("Go where?");

        String direction = command.getSecondWord();

        // Try to leave current room.
        Room nextRoom = currentRoom.getExit(direction);

        if (nextRoom == null) {
            System.out.println("You can not go this way!");
        else {
            currentRoom = nextRoom;

    private void makeFrame()
        frame = new JFrame("ImageViewer");
        JPanel toolbar = new JPanel();


        Container contentPane = frame.getContentPane();

        // Specify the layout manager with nice spacing
        contentPane.setLayout(new BorderLayout(6, 6));

        statusLabel = new JLabel(title, SwingConstants.CENTER);
        contentPane.add(statusLabel, BorderLayout.NORTH);

        // Bottom Nav Toolbar
        contentPane.add(toolbar, BorderLayout.SOUTH); 
        north = new JButton("North");
        north.addActionListener(new ActionListener() {
                               public void actionPerformed(ActionEvent e) { 
                                   System.out.println("go east");

        east = new JButton("Help");
        east.addActionListener(new ActionListener() {

                               public void actionPerformed(ActionEvent e) { 




        south = new JButton("South");

        west = new JButton("West");

        //imagePanel = new ImagePanel();
        //contentPane.add(imagePanel, BorderLayout.CENTER);

        // building is done - arrange the components and show        

1 Answer