Timer

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

/**
 * Write a description of class Fishes here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Fishes extends chaar
{
    boolean touchingShark_2 = false;
    int counter = 0;
    /**
     * Act - do whatever the Fishes wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        move(4);
        if (Greenfoot.isKeyDown("Left"))
        {
            turn(-3);
        }
        if (Greenfoot.isKeyDown("Right"))
        {
            turn(3);
        }
        Actor Shark_2 = getOneIntersectingObject(Shark_2.class);
        if(Shark_2 != null)
        {
            World myWorld = getWorld();
            Level_quatre level_4 = (Level_quatre)myWorld;
            HealthBar healthbar = level_4.getHealthBar();
            if(touchingShark_2 == false)
            {
                healthbar.loseHealth();
                touchingShark_2 = true;
                if(healthbar.health <=0)
                {
                    Gameover_1 gameover = new Gameover_1();
                    myWorld.addObject(gameover, myWorld.getWidth()/2, myWorld.getHeight()/2);
                    myWorld.removeObject(this);
                    if (counter > 0) {
                        counter = counter - 1;
                        if (counter == 0)  {
                            Greenfoot.stop();
                        }
                    }
                }
            }    
        }    

        else { 
            touchingShark_2 = false;
        }
    }     
}