using UnityEngine;
using System.Collections;

public class bomb : MonoBehaviour {

    float detonateTime = 3f;             // тэсрэх хугацаа
    public GameObject explosionBomb;     // бөмбөгний prefab
    public GameObject bombRay;           // тэсрэлтний prefab
    private int detonateLength = 2;      // тэсрэх урт
    private RaycastHit hit;              // raycast бай
    private bool isExploded = false;

    void Start () {

        if (isExploded) return;
        isExploded = true;

        StartCoroutine (destroyBomb(detonateTime));
    }

    void OnTriggerExit (Collider other) {

        if (other.tag == "Player") {    // хэрвээ тоглогч байх юм бол

            gameObject.collider.isTrigger = false;   // collider өгөх
        }
    }

    IEnumerator destroyBomb(float timer) {



        // дэлбэлэх

        yield return new WaitForSeconds(timer);
        Destroy (this.gameObject);
        Instantiate (explosionBomb, transform.position, Quaternion.identity);

        // raycast 4 зүг рүү хайх

        for (int i = 1; i <= detonateLength; i++) {

            // raycast зүүн тийшээ
            if (!Physics.Raycast(transform.position, Vector3.left, out hit, i)) {

                Vector3 posBombRay = new Vector3(Mathf.Round(transform.position.x - i), transform.position.y, Mathf.Round (transform.position.z));
                Instantiate(bombRay, posBombRay, Quaternion.identity);
            } else if (hit.collider.tag == "Bomb") {

                hit.collider.gameObject.SendMessage("destroyBomb", 0f);
            }

            // raycast баруун тийшээ
            if (!Physics.Raycast(transform.position, Vector3.right, out hit, i)) {

                Vector3 posBombRay = new Vector3(Mathf.Round(transform.position.x + i), transform.position.y, Mathf.Round (transform.position.z));
                Instantiate(bombRay, posBombRay, Quaternion.identity);
            } else if (hit.collider.tag == "Bomb") {

                hit.collider.gameObject.SendMessage("destroyBomb", 0f);
            }

            // raycast дээшээ
            if (!Physics.Raycast(transform.position, Vector3.forward, out hit, i)) {

                Vector3 posBombRay = new Vector3(Mathf.Round(transform.position.x), transform.position.y, Mathf.Round (transform.position.z + i));
                Instantiate(bombRay, posBombRay, Quaternion.identity);
            } else if (hit.collider.tag == "Bomb") {

                hit.collider.gameObject.SendMessage("destroyBomb", 0f);
            }

            // raycast доошоо
            if (!Physics.Raycast(transform.position, Vector3.back, out hit, i)) {

                Vector3 posBombRay = new Vector3(Mathf.Round(transform.position.x), transform.position.y, Mathf.Round (transform.position.z - i));
                Instantiate(bombRay, posBombRay, Quaternion.identity);
            } else if (hit.collider.tag == "Bomb") {

                hit.collider.gameObject.SendMessage("destroyBomb", 0f);
            }
        }
    }
}