Unity 2D Düşman Okçusu Yapılması

public float speed;
    public PlayerController player;
    public GameObject impactEffect;
    public int damageToGive;
    public Transform PlayerPosition;
 
 
    private Rigidbody2D rigidbody2D;
 
 
    // Use this for initialization
    void Start ()
    {
        this.rigidbody2D = GetComponent<Rigidbody2D> ();
        this.player = FindObjectOfType<PlayerController> ();
        PlayerPosition = GameObject.FindGameObjectWithTag ("Player").transform;
   
        if (this.player.transform.position.x < transform.position.x) {
            this.speed = -this.speed;
            
        }
 
 
    }
 
    void FixedUpdate()
    {
        float angle = Vector2.Angle(Vector2.right, this.rigidbody2D.velocity);
        if (this.rigidbody2D.velocity.y < 0)
            angle = -angle;
        transform.rotation = Quaternion.Euler(0, 0, angle);
    }
 
    // Update is called once per frame
    void Update ()
    {
        this.rigidbody2D.velocity = new Vector2 (this.speed, this.rigidbody2D.velocity.y);
        
 
 
 
 
       
    }
 
    void OnTriggerEnter2D (Collider2D other)
    {
        if (other.name == "Player") {
            HealthManager.HurtPlayer(this.damageToGive);
        }
 
        if (other.GetComponent<PlayerController>() == null && other.tag != "Ground")
        {
            return;
        }
 
 
   
        Instantiate (this.impactEffect, transform.position, transform.rotation);
        Destroy (gameObject);
    }
}