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

/**
 * Write a description of class Ditto here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Boy extends Actor
{   
    private GreenfootImage image1;
    private GreenfootImage image2;
    private GreenfootImage image3;
    private GreenfootImage image4;
    private GreenfootImage image5;
    private GreenfootImage image6;
    private GreenfootImage image7;
    private GreenfootImage image8;
    private GreenfootImage idle;
    private int vSpeed = 0;
    private int acceleration = 1;
    private int frame;
    private boolean isKeyPressed;
    private boolean walking;
    private boolean facingRight;
    private boolean onGround;
    public void Boy()
    {  
      image1 = new GreenfootImage("Walk Right 1.png");
      image2 = new GreenfootImage("Walk Right 2.png");
      image3 = new GreenfootImage("Walk Right 3.png");
      image4 = new GreenfootImage("Walk Right 4.png");
      image5 = new GreenfootImage("Walk Left 1.png");
      image6 = new GreenfootImage("Walk Left 2.png");
      image7 = new GreenfootImage("Walk Left 3.png");
      image8 = new GreenfootImage("Walk Left 4.png");
      setImage(idle);
      walking = false;
      facingRight = true;
     
      
    
    }
    public void walkLeft()
    {
        int delay = 4;
        walking = true;
        facingRight = false;
        frame ++;
        if(frame < 1 * delay)
        {
            setImage(image5);
        }
        else if(frame < 3 * delay)
        {
            setImage(image6);
        }
        else if(frame < 5 * delay)
        {
            setImage(image7);
        }
        else if (frame < 7 * delay)
        {
            setImage(image8);
            frame = 1;
            return;
        }
    }
    public void walkRight()
    {
        int delay = 4;
        walking = true;
        facingRight = true;
        frame ++;
        if(frame < 1 * delay)
        {
            setImage(image1);
        }
        else if(frame < 3 * delay)
        {
            setImage(image2);
        }
        else if(frame < 5 * delay)
        {
            setImage(image3);
        }
        else if (frame < 7 * delay)
        {
            setImage(image4);
            frame = 1;
            return;
        }
    }
    public void checkKeys() { //checks different keys and performs the called actions
        isKeyPressed = false;
        if (Greenfoot.isKeyDown("d") && Greenfoot.isKeyDown("a"))
        {
            stopWalking();
            isKeyPressed = true;
        }
        else if (Greenfoot.isKeyDown("d") && getOneObjectAtOffset( -25, 0, Ground.class ) == null) {
            walkRight();
            setLocation (getX()-8, getY());
            isKeyPressed = true;
        }
        else if (Greenfoot.isKeyDown("a") && getOneObjectAtOffset( 25, 0, Ground.class ) == null) {
            walkLeft();
             setLocation (getX()+8, getY());
            isKeyPressed = true;
        }
        else if (!(isKeyPressed))
        {
            stopWalking();
        }
    }
    public void stopWalking()
    {
        walking = false;
        if (facingRight)
         setImage (idle);
        else
         setImage (idle);
    }
    public void act() 
    {
      movement();
      checkKeys();
    }
      public void movement(){
        // vertical movement
        vSpeed += acceleration; // gravity
        setLocation(getX(), getY()+vSpeed); // move (fall or jump)
        boolean onGround = false; // for current on ground state
        Actor ground = getOneIntersectingObject(Ground.class); // get ground intersector
        
        if (ground != null){ //if actor is inside ground
            int direction = (int)Math.signum(vSpeed); // get vertical direction
            if (direction == 1) 
            onGround = true; // actor is on ground
            vSpeed = 0; // vertical movement is stopped
            while (isTouching(Ground.class)) setLocation(getX(), getY()-direction); // move off of ground
        }
        if (onGround && Greenfoot.isKeyDown("w")) {
            vSpeed -= 18; // jump
        }
    
    }
}