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

/**
 * Write a description of class Hero here.
 * 
 * @author Andrew Fantino 
 * @version 5/6/18
 */
public class Hero extends SmoothMover implements Killable
{
    private int health;
    private  double speed;
    private World world;
    
    /**
     * this is the constructor for hero
     * 
     * @param world
     */
    public Hero (World world) {
        this.world = world;
        
        health = 3;
        speed = 5.0;
    }
    /**
     * act - do whatever the Hero wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        controlledMovement();
    }
    /**
     * controlledMovement - Allows the hero to be controlled and for next move to be 
     * qued with either arrows or wasd depending on what was used previously. This is 
     * a feature that will allow advance players to have greater control of the hero
     * and increases the skill cap.
     */
    private void controlledMovement(){
        if((Greenfoot.isKeyDown("a") || Greenfoot.isKeyDown("left")) && 
               this.getExactX() >= 0){
            this.move(-speed);
        } else if ((Greenfoot.isKeyDown("d") || Greenfoot.isKeyDown("right")) && 
               this.getExactX() <= 800) {
            this.move(speed);
        } else if ((Greenfoot.isKeyDown("w") || Greenfoot.isKeyDown("up")) && 
               this.getExactY() >= 0) {
            this.setLocation(this.getExactX(), this.getExactY()-speed);
        } else if ((Greenfoot.isKeyDown("s") || Greenfoot.isKeyDown("down")) && 
               this.getExactY() <= 450) {
            this.setLocation(this.getExactX(), this.getExactY()+speed);
        }
    }
    /**
     * getHealth - gets the health of the instance of hero
     * 
     * @return health
     */
    public int getHealth() {
        return this.health;
    }
    /**
     * getSpeed - gets the speed of the instance of the hero
     * 
     * @return speed
     */
    public double getSpeed() {
        return this.speed;
    }
    /**
     * setSpeed - sets the speed of the instance of the hero
     * 
     * @param speed
     */
    public void setSpeed(double speed) {
        this.speed = speed;
    }
    /**
     * decreaseHealth - decreases health by param amount
     * 
     * @param amount
     */
    public int decreaseHealth(int amount) {
        return health-amount;
    }
    /**
     * increaseHealth - increases health by 1
     * 
     * @return health
     */
    public int increaseHealth() {
        return health+1;
    }
    /**
     * die - sets the world to the game over screen
     */
    public void die() {
        if (isDead()) {
            System.out.println("DEAD #2");
            Greenfoot.setWorld(new GameOver());
        }
    }
    /**
     * isDead() - checks if health is 0 or below
     * 
     * @return isDead
     */
    public boolean isDead() {
        if(this.getHealth() <= 0) {
            return true;
        } else {
            return false;
        }
    }
    public boolean isTouchingEnemy() {
        Actor e = getOneIntersectingObject(Enemy.class);
        
        if (e != null) {
            return true;
        } else {
            return false;
        }
    }
    public void takeDamage() {
        if (isTouchingEnemy()) {
            this.getWorld().getHealthBar().loseHealth(this);
            die();
        }
    }
    /**
     * getWorld - gets the world that the Hero is instanciated
     * in.
     * 
     * @return world
     */
    public MyWorld getWorld() {
        return (MyWorld)world;
    }
}