if(String.valueOf((currSong + 1)).equals(Greenfoot.getKey()) )
       {
           if(!guess){
               isDown = true;
               scr.addScore(5);
               guess = true;
            }    
           else{
                 Greenfoot.setWorld(new Gameover());
                }     
       }

 if(String.valueOf((currSong + 1)).equals(Greenfoot.getKey()) )
       {
           if(!guess){
               isDown = true;
               scr.addScore(5);
               guess = true;
            }           
       } 
       else{
            Greenfoot.setWorld(new Gameover());
            } 

String key = Greenfoot.getKey();
if (key != null && (""+(currSong+1)).equals(key))
{
    if (!guess){
        isDown = true;
        scr.addScore(5);
        guess = true;
    }
}
else if (key != null)
{
    Greenfoot.setWorld(new GameOver());
}

String key = Greenfoot.getKey();
if (!guess && key != null)
{
    if ((""+(currSong+1)).equals(key))
    {
        isDown = true;
        scr.addScore(5);
        guess = true;
    }
    else
    {
        Greenfoot.setWorld(new GameOver());
    }
}

import greenfoot.*;  // (World, Actor, GreenfootImage, Greenfoot and MouseInfo)

/**
 * Write a description of class Game here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Game extends World
{  
    private String[] songs = {"Dive", "Stay", "SupermarketFlowers", "DontLeave", "ItAintMe", "Slide", "AintMyFault", "ScaredToBeLonely" };
    private String[] answers = {"1", "2", "3", "4", "5", "6", "7", "8"};
    private boolean isDown = false;
    private Score scr;
    private int currSong = 0;
   
    /**
     * Constructor for objects of class Game.
     * 
     */
    public Game()
    {    
        super(1000, 600, 1); 
        GreenfootImage bg = new GreenfootImage("images/Upbeat.jpg");
        bg.scale(getWidth(), getHeight());
        setBackground(bg);
        //etc.
        prepare();
        isDown = false;
        scr = new Score();
        addObject (scr, 900, 50);
    }

    /**
     * Prepare the world for the start of the program.
     * That is: create the initial objects and add them to the world.
     */
    private void prepare()
    {
        Game1 game1 = new Game1("Game");
        addObject(game1,134,108);
        game1.setLocation(204,106);
        Game2 game2 = new Game2("Press spacebar to start");
        addObject(game2,113,200);
        game2.setLocation(231,193);
        Dive dive = new Dive("1. Dive");
        addObject(dive,121,272);
        dive.setLocation(162,274);
        Stay stay = new Stay("2. Stay");
        addObject(stay,314,276);
        stay.setLocation(387,273);
        SupermarketFlowers supermarketflowers = new SupermarketFlowers("3. Supermarket Flowers");
        addObject(supermarketflowers,535,270);
        supermarketflowers.setLocation(749,273);
        supermarketflowers.setLocation(737,272);
        DontLeave dontleave = new DontLeave("4. Don't Leave");
        addObject(dontleave,116,365);
        dontleave.setLocation(233,373);
        ItAintMe itaintme = new ItAintMe("5. It Ain't Me");
        addObject(itaintme,460,371);
        itaintme.setLocation(561,372);
        Slide slide = new Slide("6. Slide");
        addObject(slide,750,383);
        slide.setLocation(820,374);
        AintMyFault aintmyfault = new AintMyFault("7. Ain't My Fault");
        addObject(aintmyfault,114,489);
        aintmyfault.setLocation(252,485);
        ScaredToBeLonely scaredtobelonely = new ScaredToBeLonely("8. Scared To Be Lonely");
        addObject(scaredtobelonely,497,490);
        scaredtobelonely.setLocation(710,484);
        Game3 game3 = new Game3("You can only guess once per song");
        addObject(game3,442,200);
        game3.setLocation(529,197);
        removeObject(game3);
        Game3 game32 = new Game3("*You can only guess once per song*");
        addObject(game32,459,201);
        game32.setLocation(533,198);
    }
   
    public int Random()
    {
         return Greenfoot.getRandomNumber(songs.length);
    }
    
    
    
    public void act()
    {
       boolean guess = false;
       if(!guess){          
           if(isDown == false && Greenfoot.isKeyDown("space"))
           {
               currSong = Random();
               Greenfoot.playSound(songs[currSong] + ".mp3");
               isDown = true;
            }
       }
       
       if(guess){
           if(isDown == true && Greenfoot.isKeyDown("space")== false)
           {
               isDown = false;
           }
       }
       
       if(String.valueOf((currSong + 1)).equals(Greenfoot.getKey()) )
       {
           if(!guess){
               isDown = true;
               scr.addScore(5);
               guess = true;
            }           
           else if(guess){
                    Greenfoot.setWorld(new Gameover());
            }
       }
       
       if(guess){
           if(isDown == false && Greenfoot.isKeyDown("space")== true)
           {
               Greenfoot.playSound(songs[currSong] + "mp3");
               isDown = true;
               guess = true;
           }
           if(guess = true)
           {
               isDown = false;
           }
       }      
    }
}

// witth instance fields
private String[] songs = {"Dive", "Stay", "SupermarketFlowers", "DontLeave", "ItAintMe", "Slide", "AintMyFault", "ScaredToBeLonely" };
private String[] answers = {"1", "2", "3", "4", "5", "6", "7", "8"};
private GreenfootSound playingSong;
int currSong;

public void act()
{
    // initiating new song
    if (playingSong == null && Greenfoot.isKeyDown("space"))
    {
        currSong = Random();
        playingSong = new GreenfootSound(songs[currSong]+".mp3);
        playingSong.playLoop();
    }
    // song playing
    if (playingSong != null)
    {
        String key = Greenfoot.getKey();
        if (key != null && "12345678".indexOf(key) >= 0) // valid key?
        {
            if (key.equals(answers[currSong])) // correct key?
            {
                scr.addScore(5);
                playingSong.stop();
                playingSong = null;
            }
            else // wrong key!
            {
                playingSong.stop();
                Greenfoot.setWorld(new GameOver());
            }
        }
    }
}