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

/**
 * Write a description of class Ship here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Ship extends Actor
{
    // True or false statement for touching other actors
    boolean touchingAlien = false;
    boolean touchingUFO = false;
    boolean touchingUFOLaser = false; 

    private ScoreBoard score;

    public Ship(ScoreBoard score)
    {
        this.score = score;
    }

    /**
     * Act - do whatever the Ship wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        movement();
        Boundry(); 
        hitAlien();
        hitUFO();
    }  

    public void movement() {
        // User input for navigating ship
        if (Greenfoot.isKeyDown("up")) {
            setLocation(getX(), getY() - 5);
        }

        if (Greenfoot.isKeyDown("down")) {
            setLocation(getX(), getY() + 5);
        }

        if (Greenfoot.isKeyDown("right")) {
            setLocation(getX() + 5, getY());
        }

        if (Greenfoot.isKeyDown("left")) {
            setLocation(getX() - 5, getY());
        }
        // User input for shooting lasers (works when key is lifted)
        if ("space".equals(Greenfoot.getKey())) {
            shoot();
        }
    }

    public void shoot() {
        // Add laser object to world
        getWorld().addObject(new Laser(score), getX(), getY()); 
    }

    public void hitAlien() {

        // Define the actor as the ship touching an alien
        Actor alien = getOneIntersectingObject(Alien.class);

        if (alien != null ) {
            // Call MyWorld and HealthBar into ship class
            World myWorld = getWorld();
            MyWorld myworld = (MyWorld)myWorld;

            HealthBar healthbar = myworld.getHealthBar();
            if (touchingAlien == false) {
                healthbar.loseHealth();
                touchingAlien = true;  
                if (healthbar.health <= 0) {
                    // Game over since health has hit 0
                    myWorld.removeObject(this);
                    Greenfoot.setWorld(new GameOver());
                }
            }

            else {
                // Continue game 
                touchingAlien = false;
            }
        }

    }
    public void hitUFO() {
        // Define the actor as the ship touching an alien
        Actor UFO = getOneIntersectingObject(UFO.class);
        Actor UFOLaser = getOneIntersectingObject(UFOLaser.class);
        if (UFO !=null || UFOLaser !=null ) {
            // Call MyWorld and HealthBar into ship class

            World finalWorld = getWorld(); 
            FinalWorld finalworld = (FinalWorld)finalWorld; 

            HealthBar healthbar = finalworld.getHealthBar();
            if (touchingUFO == false || touchingUFOLaser == false) {
                healthbar.loseHealth();
                touchingUFO = true;
                touchingUFOLaser = true;
                if (healthbar.health <= 0) {
                    // Game over since health has hit 0
                    finalWorld.removeObject(this);
                    Greenfoot.setWorld(new GameOver());
                }
            }

            else {
                // Continue game 
                touchingUFO = false;
                touchingUFOLaser = false; 
            }

        }
    }

    public void Boundry() {
        if(getX() > 980) {
            setLocation(980, getY());
        }
        if(getX() < 0) {
            setLocation(0, getY()); 
        }
        if(getY() > 575) {
            setLocation(getX(), 575);
        }
        if(getY() < 0) {
            setLocation(getX(), 0); 
        }

    }
}