//ground code
 public void moveToGround(Actor ground)
    {
        int groundHeight = ground.getImage().getHeight();
        int newY = ground.getY() - (groundHeight + getImage().getHeight())/2;
        
        setLocation(getX(), newY);
        jumping = false;
    }
 //fall code
 public void checkFall()
  {
        if(onGround())
        {
            vSpeed =0;
        }
        else
        {
            fall();
        }
        
        
    }
 //jump code
  public void jump()
    {
        vSpeed = vSpeed - jumpStrength;
        jumping = true;
        fall();
    }
    //falling code
 public void fall()
    {setLocation(getX(), getY() +vSpeed);
     if(vSpeed <=9)
     {
        vSpeed = vSpeed + acceleration ;
    }
    jumping = true;
    }
    //makes ground solid
 public boolean onGround()
    {
        int spriteHeight = getImage().getHeight();
        int lookForGround = (int)(spriteHeight/2) + 5;
        
        Actor ground = getOneObjectAtOffset(0, lookForGround, floor.class);
        
        if(ground == null)
        {
            jumping = true;
            return false;
        }
        else
        {
            moveToGround(ground);
            return true;
        }
    }