using UnityEngine;

public class MonsterShootToPlayer2D : MonoBehaviour
{
    public GameObject player;
    public GameObject bullet;
    public float speed = 50f;
    public float bulletTime = 5.0f;
    public float firePause = 3.0f;
    Vector3 targetPos;
    float angle;


    void Start()
    {
        InvokeRepeating("F1", 1.0f, firePause);
    }

    void F1()
    {
        GameObject tmp = Instantiate(bullet, transform.position, Quaternion.Euler(0, 0, 0));
        targetPos = player.transform.position;
        targetPos.x = targetPos.x - transform.position.x;
        targetPos.y = targetPos.y - transform.position.y;
        angle = Mathf.Atan2(targetPos.y, targetPos.x) * Mathf.Rad2Deg;
        tmp.transform.rotation = Quaternion.Euler(new Vector3(0, 0, angle - 90));
        tmp.GetComponent<Rigidbody2D>().AddForce(tmp.transform.up * speed);
        tmp.transform.Rotate(new Vector3(0, 0, 90f));
        Destroy(tmp, bulletTime);
    }
}