public class BossBattle extends World
{
    Counter counter;
    Score score;
    // Gets music to play
    //GreenfootSound backgroundMusic = new GreenfootSound("untitled.mp3");
    /**
     * Constructor for objects of class CopyOfPlayArea.
     * 
     */
    public BossBattle()
    {    
        // Create a new world with 800x800 cells with a cell size of 1x1 pixels.
        super(600, 600, 1);
        // Plays music
        //backgroundMusic.playLoop();
        prepare();
    }

    /**
     * Prepare the world for the start of the program.
     * That is: create the initial objects and add them to the world.
     */
    private void prepare()
    {
        Champion champion = new Champion();
        addObject(champion,108,534);

        Counter counter = new Counter();
        addObject(counter,303,20);
        counter.setLocation(292,13);
        BossMan bossman = new BossMan();
        addObject(bossman,471,148);
    }

    public void removeHealth2()//this is used to remove health 
    {
        counter.add(-2);

    }

    public void addHealth()
    {
        counter.add(20);
    }

    public int getHealth()//this allows classes get 
    {
        int x = counter.gethealth();
        return x;
    }

}

public class People extends Movers
{
    public int health = 100 + Greenfoot.getRandomNumber(50);

    public void deadChampion()
    {
        if (this.getWorld().getClass() == PlayArea.class)
        {
            PlayArea world1 = getWorldOfType(PlayArea.class);
            if(world1.getHealth()<=0)
            {
                getWorld().removeObject(this);
                Greenfoot.setWorld(new GameOver());
            }
        }
    }

    public void deadChampion2()
    {
        if (this.getWorld().getClass() == BossBattle.class)
        {
            BossBattle world2 = getWorldOfType(BossBattle.class);
            if(world2.getHealth()<=0)
            {
                getWorld().removeObject(this);
                Greenfoot.setWorld(new GameOver());
            }
        }
    }

    public void removeHealth()
    {
        if (this.getWorld().getClass() == PlayArea.class)
        {
            if(canSee(Monsters.class))
            {
                PlayArea world = getWorldOfType(PlayArea.class);
                world.removeHealth();//removes players health

            }
        }
    }

    public void removeHealth2()
    {
        if (this.getWorld().getClass() == BossBattle.class)
        {
            if(canSee(BossMan.class))
            {
                BossBattle world = getWorldOfType(BossBattle.class);
                world.removeHealth2();//removes players health

            }
        }
    }
}

public class Champion extends People
{
    public int health = 100;
    int x;
    int y;
    int firecount;

    public void act()
    {
        checkKeys();
        firecount++;
        if(firecount > 5)
            if(Greenfoot.isKeyDown("space"))
            {
                getWorld().addObject(new Bullet(getRotation()), getX(), getY());
                firecount = 4;
            }
        removeHealth();
        removeHealth2();
        addHealth();
        deadChampion();
        deadChampion2();
    }

    /**
     * Check whether the control keys are being pressed, and turn
     * if they are.
     */
    public void checkKeys()
    {
        //these events make this program an event driven application.
        if ( Greenfoot.isKeyDown("up") )//trigger function
        {
            move(8);//event handler
        }
        if ( Greenfoot.isKeyDown("down") )//trigger function
        {
            move(-5);//event handler
        }
        if ( Greenfoot.isKeyDown("left") )//trigger function
        {
            turn(-5);//event handler
        }
        if ( Greenfoot.isKeyDown("right") )//trigger function
        {
            turn(5);//event handler
        }
    }



    public void addHealth()
    {
        if(canSee(HealthPack.class))
        {
            PlayArea world = getWorldOfType(PlayArea.class);
            world.addHealth(); //adds health to the player
            //adds a new health pack randomly in the game area
            getWorld().addObject(new HealthPack(), Greenfoot.getRandomNumber(getWorld().getWidth()), Greenfoot.getRandomNumber(getWorld().getHeight()));
        }
    }


}