void OnCollisionStay2D(Collision2D collision)
    {
        // Collided with a plant!? Game over, buddy
        if (collision.gameObject.tag == "Plant") {
            gameOverWall = GameObject.Find ("EndOfGameWall");
            gameOverWallScript = gameOverWall.GetComponent<GameOverWall>();
            gameOverWallScript.LostGame();
        }

        // Collided with a prey? Eat it, yo
        if (collision.gameObject.tag == "Herbivore") {
            // Eat once a second
            isHunger = false;
            //GetComponent<Animator>().SetTrigger("isHunger");
            if (Time.time - last >= 1) {
                currentHP = collision.gameObject.GetComponent<Health>();
                currentHP.lowerHealth(amountToEatPerTick);
                if(currentHP.eaten == true){
                    isHunger = true;
                    transform.position += new Vector3(4,0,0);
                }

                hunger += amountToEatPerTick;
                //Debug.Log("hunger is " + hunger);
                last = Time.time;

                if (hunger >= fullHungerValue) {
                    BuildMenu.score += fullHungerValue;
                    Destroy(gameObject);
                }
            }
        }
    }
    void OnCollisionStay2D(Collision2D collision)
    {
        // Collided with a plant!? Game over, buddy
        if (collision.gameObject.tag == "Plant")
        {
            gameOverWall       = GameObject.Find("EndOfGameWall");
            gameOverWallScript = gameOverWall.GetComponent <GameOverWall>();
            gameOverWallScript.LostGame();
        }

        // Collided with a prey? Eat it, yo
        if (collision.gameObject.tag == "Herbivore")
        {
            // Eat once a second
            isHunger = false;
            //GetComponent<Animator>().SetTrigger("isHunger");
            if (Time.time - last >= 1)
            {
                currentHP = collision.gameObject.GetComponent <Health>();
                currentHP.lowerHealth(amountToEatPerTick);
                if (currentHP.eaten == true)
                {
                    isHunger            = true;
                    transform.position += new Vector3(4, 0, 0);
                }

                hunger += amountToEatPerTick;
                //Debug.Log("hunger is " + hunger);
                last = Time.time;

                if (hunger >= fullHungerValue)
                {
                    BuildMenu.score += fullHungerValue;
                    Destroy(gameObject);
                }
            }
        }
    }