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

/**
 * A rocket that can be controlled by the arrowkeys: up, left, right.
 * The gun is fired by hitting the 'space' key. 'z' releases a proton wave.
 * 
 * @author Poul Henriksen
 * @author Michael Kölling
 * 
 * @version 1.0
 */
public class Rocket extends SmoothMover
{
    private static final int gunReloadTime = 5;         // The minimum delay between firing the gun.

    private static final int protonReloadTime = 50;

    private int reloadDelayCount;               // How long ago we fired the gun the last time.

    private int protonDelayCount;

    int protonCounter=2;

    private GreenfootImage rocket = new GreenfootImage("rocket.png");    
    private GreenfootImage rocketWithThrust = new GreenfootImage("rocketWithThrust.png");

    /**
     * Initialise this rocket.
     */
    public Rocket()
    {
        reloadDelayCount = 5;
        addToVelocity(new Vector(13, 0.7));      // initially slowly drifting
        reloadDelayCount = 5;

    }

    /**
     * Do what a rocket's gotta do. (Which is: mostly flying about, and turning,
     * accelerating and shooting when the right keys are pressed.)
     */
    public void act()
    {
        move();
        checkKeys();
        reloadDelayCount++;
        checkCollision();
        //startProtonWave();
        protonDelayCount++;
        reloadDelayCount++; 

        Space space = (Space) getWorld();
        GreenfootImage background = space.getBackground();
        background.fillRect(420 , 460, 150, 20);    
    }

    /**
     * Check whether there are any key pressed and react to them.
     */
    private void checkKeys() 
    {
        //9.25
        ignite(Greenfoot.isKeyDown("up"));

        if (Greenfoot.isKeyDown("left")) 
        {
            turn(-5);
        }
        //9.21-22
        if (Greenfoot.isKeyDown("right")) 
        {
            turn(5);
        }
        if (Greenfoot.isKeyDown("space")) 
        {
            fire();
        }
        if (Greenfoot.isKeyDown("z")) 
        {
            startProtonWave();
            protonIndicator();
        }
    }

    /**
     * Should the rocket be ignited?
     */
    //9.26
    private void ignite(boolean boosterOn) 
    {
        //9.27
        if (boosterOn) 
        {
            setImage (rocketWithThrust);
            addToVelocity (new Vector(getRotation(), 0.3));
        }
        else 
        {
            setImage(rocket);        
        }
    }

    /**
     * Fire a bullet if the gun is ready.
     */
    private void fire() 
    {
        if(reloadDelayCount >= gunReloadTime) 
        {
            Bullet bullet = new Bullet (getVelocity(), getRotation());
            getWorld().addObject (bullet, getX(), getY());
            bullet.move ();
            reloadDelayCount = 0;
        }
    }
    //9.28
    private void checkCollision(){
        //9.32
        Asteroid a = (Asteroid) getOneIntersectingObject(Asteroid.class);
        if (a != null){
            //9.33, 9.44-45
            Space space = (Space) getWorld();
            space.addObject(new Explosion(), getX(), getY());
            space.removeObject(this);
            space.gameOver();
        }
    }//9.58
    private void startProtonWave()
    {
        //9.61
        if (protonDelayCount >= protonReloadTime)
        {
            ProtonWave wave = new ProtonWave();
            getWorld().addObject (wave, getX(), getY());

            protonDelayCount = 0;
        }
    }

    private void protonIndicator() {

        protonCounter++;

        if(protonCounter < 0){

        }
    }
}
    
    
    

if ((waveDelay == 0 || --waveDelay == 0) && Greenfoot.isKeyDown("space")) startWave();