using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Saltosion.OneWeapon.Guns {
    public class ShotgunBullet : MonoBehaviour {

        public Bullet SubBullet;
        public int BulletsShot;
        public float TotalArc;

        private Bullet Bullet;

        void Start() {
            Bullet = GetComponent<Bullet>();
            Vector2 Direction = Bullet.Direction;
            float Rot = Bullet.InitialRotation;

            Vector2 BaseDirection = Quaternion.AngleAxis(TotalArc / 2, Vector3.forward) * Direction;
            float Rotation = Mathf.Atan2(BaseDirection.y, BaseDirection.x) * Mathf.Rad2Deg + 90;

            for (int i = 0; i < BulletsShot; i++) {
                float CurrentAngle = -i * (TotalArc / (BulletsShot - 1));
                Vector2 CurrentDirection = Quaternion.AngleAxis(CurrentAngle, Vector3.forward) * BaseDirection;

                Bullet ShotBullet = GameObject.Instantiate(SubBullet, transform.position, new Quaternion());
                ShotBullet.Direction = CurrentDirection;
                ShotBullet.InitialRotation = Rotation + CurrentAngle;
            }

            Destroy(gameObject);
        }
    }
}