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

/**
 * Write a description of class GameEnd here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class GameOver extends Actor
{
    private int HP = 10;
    /**
     * Act - do whatever the GameEnd wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        GameOver();
        if (HP == 0)
        {
            Greenfoot.stop();
        }
    }    
    
    public int GameOver()
    {
        Actor Item1 = getOneIntersectingObject(Item_1.class);
        if (Item1 != null ) 
        {
            HP += 1;   
        }
        Actor Item2 = getOneIntersectingObject(Item_2.class);
        if(Item2 != null)
        {
            HP += 0.5; 
        }
        
        Actor Enemy1 = getOneIntersectingObject(Enemy_1.class);
        Actor Enemy2 = getOneIntersectingObject(Enemy_2.class);
        Actor Enemy3 = getOneIntersectingObject(Enemy_3.class);
        if (Enemy1 != null) {   
            HP -= 1; 
        }
        if (Enemy2 != null)
        {
            HP -= 1; 
        }
        if (Enemy3 != null)
        {
            HP -= 1;     
        }
        return HP;
    }
}

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

/**
 * Write a description of class MainCharacter here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class MainCharacter extends Actor
{
    private boolean spaceDown;
    //private int Score = 10;
    /**
     * Act - do whatever the MainCharacter wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        int speed = 3;
        checkFire();
        
        if(Greenfoot.isKeyDown("up"))
        {
            setLocation(getX(), getY() - speed);
        }
        if(Greenfoot.isKeyDown("down"))
        {
            setLocation(getX(), getY() + speed);
        }
        if(Greenfoot.isKeyDown("left"))
        {  
            setLocation(getX() - speed, getY());
        }
        if(Greenfoot.isKeyDown("right"))
        {
            setLocation(getX()+ speed, getY());
        }
        
        Actor enemy_1 = getOneIntersectingObject(Enemy_1.class);
        if(enemy_1 != null) {
            getWorld().removeObject(enemy_1);
        }
        Actor enemy_2 = getOneIntersectingObject(Enemy_2.class);
        if(enemy_2 != null) {
            getWorld().removeObject(enemy_2);
        }
        Actor enemy_3 = getOneIntersectingObject(Enemy_3.class);
        if(enemy_3 != null) {
            getWorld().removeObject(enemy_3);
        }
        Actor Item_1 = getOneIntersectingObject(Item_1.class);
        if(Item_1 != null) {
            getWorld().removeObject(Item_1);
        }
        Actor Item_2 = getOneIntersectingObject(Item_2.class);
        if(Item_2 != null) {
            getWorld().removeObject(Item_2);
        }
        
        /*Actor Item1 = getOneIntersectingObject(Item_1.class);
        if (Item1 != null ) 
        {
            Score += 1;   
        }
        Actor Item2 = getOneIntersectingObject(Item_2.class);
        if(Item2 != null)
        {
            Score += 0.5; 
        }
        
        Actor Enemy1 = getOneIntersectingObject(Enemy_1.class);
        Actor Enemy2 = getOneIntersectingObject(Enemy_2.class);
        Actor Enemy3 = getOneIntersectingObject(Enemy_3.class);
        if (Enemy1 != null||Enemy2 != null||Enemy3 != null) {   
            Score -= 1; 
        }
        if (Score == 0)
        {
            Greenfoot.stop();
        }*/
        
    } 
    
    public void checkFire()
    {
       
        if(!spaceDown && Greenfoot.isKeyDown("space")) 
        {
            spaceDown = true;
            getWorld().addObject(new Bullet(), getX(), getY());
        }
        if (spaceDown && !Greenfoot.isKeyDown("space"))
        {
            spaceDown = false;
        }
    }
}