gistfile1.txt

/**
 * unlike a bomb is removed after any first collision
 *
 * !!!! We sometimes go into the collider twice(OnCollisionEnter2D,OnTriggerEnter2D) - bag Physics Unity !!!! This is a very important point in PUN
 * Because of this we can send network data several times instead of once.
 * Extra traffic costs. And in the PUN delay I attack quickly.
 * Each extra byte of the transmitted traffic is already a problem.
 */

using UnityEngine;
using System.Collections;

public class Ammo : Photon.MonoBehaviour
{
    public float ammoSpeed = 2000;

    // Prefab of explosion effect.
    public GameObject explosion;

    // We sometimes go into the collider twice(OnCollisionEnter2D,OnTriggerEnter2D) - bag Physics Unity. It is necessary once
    bool flag;

    Vector3 mouseOnScreen;
    Vector3 positionOnScreen;
    Vector3 direction;

    void Awake ()
    {
        // Add force in the direction described
        mouseOnScreen = Camera.main.ScreenToWorldPoint (Input.mousePosition);
        positionOnScreen = new Vector3 (transform.position.x, transform.position.y);
        direction = mouseOnScreen - positionOnScreen;
        direction.Normalize ();
        GetComponent<Rigidbody2D> ().AddForce (direction * ammoSpeed);

        // Get the angle between the points
        float angle = AngleBetweenTwoPoints (positionOnScreen, mouseOnScreen);

        // Ta Daaa
        transform.rotation = Quaternion.Euler (new Vector3 (0f, 0f, angle));
    }

    void Update ()
    {  
        // Add force in the direction described
        positionOnScreen = new Vector3 (transform.position.x, transform.position.y);
        direction = mouseOnScreen - positionOnScreen;
        direction.Normalize ();

        // Get the angle between the points
        float angle = AngleBetweenTwoPoints (positionOnScreen, mouseOnScreen);

        // Ta Daaa
        transform.rotation = Quaternion.Euler (new Vector3 (0f, 0f, angle));
    }

    private float AngleBetweenTwoPoints (Vector3 a, Vector3 b)
    {
        return Mathf.Atan2 (a.y - b.y, a.x - b.x) * Mathf.Rad2Deg;
    }

    void OnTriggerEnter2D (Collider2D col)
    {
//        if (flag || !photonView.isMine || col.gameObject.tag == "Player" && col.transform.GetComponent<PhotonView> ().isMine)
//            return;
//        
//        flag = true;
//
//        if (col.tag == "WeaponBox") {
//            col.gameObject.GetComponent<PhotonView> ().RPC ("Explode", PhotonTargets.All, col.transform.position);
//        }
//
//        // Otherwise if the player manages to shoot himself...
//        else if (col.gameObject.tag != "Player") {
//            if (explosion != null) //Some ammunition does not leave explosions after the collision // They have an explosion = null
//                PhotonNetwork.Instantiate (explosion.name, transform.position, Quaternion.Euler (0f, 0f, Random.Range (0f, 360f)), 0);
//        } else if (col.gameObject.tag == "Player" && !col.transform.GetComponent<PhotonView> ().isMine) {
//            int i = Random.Range (0, col.GetComponent<PlayerDeath> ().ouchClips.Length);
//            col.gameObject.GetComponent<PhotonView> ().RPC ("Death", PhotonTargets.All, i);
//
//            if (explosion != null) // Some ammunition does not leave explosions after the collision // They have an explosion = null
//                PhotonNetwork.Instantiate (explosion.name, transform.position, Quaternion.Euler (0f, 0f, Random.Range (0f, 360f)), 0);
//        }
//
//        StartCoroutine (bullet_self_destruct_ ());
    }

    IEnumerator bullet_self_destruct_ () // Without this there will be problems playing sound of a shot when the ammo is destroyed immediately after the spawn
    {
        GetComponent<BoxCollider2D> ().enabled = false;

        transform.GetChild (0).GetComponent<SpriteRenderer> ().enabled = false;
        if (transform.childCount > 1) { // for rocket
            transform.GetChild (1).GetComponent<SpriteRenderer> ().enabled = false;
            transform.GetChild (2).gameObject.SetActive (false);
        }
        while (GetComponent<AudioSource> ().isPlaying == true)
            yield return new WaitForSeconds (0.1f);

        PhotonNetwork.Destroy (gameObject); // You can not go twice. There will be a red bug PUN - "Ev Destroy Failed."
    }
}