// Copyright 2003 Nokia Corporation.//// THIS SOURCE CODE IS PROVIDED 'AS IS', WITH NO WARRANTIES WHATSOEVER,// EXPRESS OR IMPLIED, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS// FOR ANY PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE// OR TRADE PRACTICE, RELATING TO THE SOURCE CODE OR ANY WARRANTY OTHERWISE// ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE AND WITH NO// OBLIGATION OF NOKIA TO PROVIDE THE LICENSEE WITH ANY MAINTENANCE OR// SUPPORT. FURTHERMORE, NOKIA MAKES NO WARRANTY THAT EXERCISE OF THE// RIGHTS GRANTED HEREUNDER DOES NOT INFRINGE OR MAY NOT CAUSE INFRINGEMENT// OF ANY PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OWNED OR CONTROLLED// BY THIRD PARTIES//// Furthermore, information provided in this source code is preliminary,// and may be changed substantially prior to final release. Nokia Corporation// retains the right to make changes to this source code at// any time, without notice. This source code is provided for informational// purposes only.//// Nokia and Nokia Connecting People are registered trademarks of Nokia// Corporation.// Java and all Java-based marks are trademarks or registered trademarks of// Sun Microsystems, Inc.// Other product and company names mentioned herein may be trademarks or// trade names of their respective owners.//// A non-exclusive, non-transferable, worldwide, limited license is hereby// granted to the Licensee to download, print, reproduce and modify the// source code. The licensee has the right to market, sell, distribute and// make available the source code in original or modified form only when// incorporated into the programs developed by the Licensee. No other// license, express or implied, by estoppel or otherwise, to any other// intellectual property rights is granted herein.import javax.microedition.lcdui.*;// The main menu is shown after the splash screen, or when the// game screen has been temporarily paused (using the 'Back' command// or a softkey in the (Canvas or FullCanvas) game screen).// The main menu allows the user to start a new game, to continue// playing an existing (paused) game, to change game settings,// to find the instructions on how to play, etc.class MainMenu    extends List    implements CommandListener{    private final BlockGameMIDlet midlet;    private final Dictionary dict;    private boolean hasContinue = false;    MainMenu(BlockGameMIDlet midlet, Dictionary dict, GameEffects gameEffects)    {        super(midlet.getAppProperty("MIDlet-Name"), List.IMPLICIT);        this.midlet = midlet;        this.dict = dict;        // The default main menu items are:        //   - New game        //   - Settings        //   - Instructions        //   - About        //        // There is one main menu item that may or may not be present:        //   - Continue:        //       It is added when a game starts (to handle game pauses),        //       and is removed when a game ends (see methods addContinue        //       and deleteContinue below).        //        // Exit is added as sofkey Command and not as a menu item.        // add default menu items        append(dict.getString(Dictionary.LABEL_NEWGAME), null);        if (gameEffects.hasSoundCapability() ||            gameEffects.hasVibrationCapability())        {            // The Settings item is only added if the device has Sound            // and Vibration support, otherwise having a Settings menu            // to change their values is useless.            append(dict.getString(Dictionary.LABEL_SETTINGS), null);        }        append(dict.getString(Dictionary.LABEL_INSTRUCTIONS), null);        append(dict.getString(Dictionary.LABEL_ABOUT), null);        addCommand(new Command(dict.getString(Dictionary.LABEL_EXIT),                               Command.EXIT, 1));        setCommandListener(this);    }    void addContinue()    {        // add Continue to the list of menu items, if not already present        if (!hasContinue)        {            insert(0, dict.getString(Dictionary.LABEL_CONTINUE), null);            hasContinue = true;        }    }    void deleteContinue()    {        // remove 'Continue' from the list of menu items, if present        if (hasContinue)        {            this.delete(0);            hasContinue = false;        }    }    void selectContinue()    {        if (hasContinue)        {            this.setSelectedIndex(0, true);        }    }    public void commandAction(Command command, Displayable d)    {        if (command == List.SELECT_COMMAND)        {            String selected = getString(getSelectedIndex());            if (selected.equals(dict.getString(Dictionary.LABEL_CONTINUE)))            {                midlet.mainMenuContinue();            }            else if (selected.equals(dict.getString(Dictionary.LABEL_NEWGAME)))            {                midlet.mainMenuNewGame();            }            else if (selected.equals(                dict.getString(Dictionary.LABEL_SETTINGS)))            {                midlet.mainMenuSettings();            }            else if (selected.equals(dict.getString(Dictionary.LABEL_ABOUT)))            {                midlet.mainMenuAbout();            }            else if (selected.equals(                dict.getString(Dictionary.LABEL_INSTRUCTIONS)))            {                midlet.mainMenuInstructions();            }        }        else        {            // the application code only adds one command: Exit            midlet.mainMenuExit();        }    }}