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

/**
 * The main protagonist of this game. Should only do three things.
 * Sprite should only walk LEFT, RIGHT, and BACK with animation.
 * 
 * @MakkaChan
 * @version 1.0
 */
public class Father extends Actor
{
    public Father()
    {
        setImage("sprite_DadRight1.png");
        frame = 0;
        direction = 0;
        gravityStrength = 3;
        vSpeed = 0;
    }
    
    /**
     * Act - do whatever the Father wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        
        if(Greenfoot.isKeyDown("left"))
        {
            moveLeft();
            direction = -1;
            if(onGround())
            {
                animateWalking();
                mirror();
            }
            
            standingStill = false;
        }
        else if(Greenfoot.isKeyDown("right"))
        {
            moveRight();
            direction = 1;
            if(onGround())
                animateWalking();
            
            standingStill = false;
        }
    }    
    
    public void animateWalking()
    {
        if(frame == 0) {setImage("sprite_DadRight1.png");}
        else if(frame == 1) {setImage("sprite_DadRight0.png");}
        else if(frame == 2) {setImage("sprite_DadRight1.png");}
        else if(frame == 3) 
        {
            setImage("sprite_DadRight2.png");
            frame = 0;
            return;
        }
        frame++;
    }
    
    public void moveLeft()
    {
        setLocation(getX() - 10, getY());
    }
    
    public void moveRight()
    {
        setLocation(getX() + 10, getY());
    }
    
    public boolean onGround()
    {
        if(getY() > 400)
        {
            return true;
        }
        return false;
    }
    
    public boolean underGround()
    {
        if(getY() > 420)
        {
            return true;
        }
        return false;
    }
    
    
    public void mirror()
    {
        getImage().mirrorHorizontally();
    }
    private int frame;
    
    private int direction;
    
    private boolean standingStill;
    
    private double gravityStrength;
    
    private double vSpeed;
}