BloodAndGore/Assets/Scripts/Guns/Gun.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Saltosion.OneWeapon.Player;

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

        public Bullet Bullet;
        public SpriteRenderer Sprite;
        public Transform BulletHole;
        public float Cooldown = 0.5f;

        private bool IsHeld = false;
        private float CurrCooldown = 0;

        void Update() {
            if (CurrCooldown > 0) {
                CurrCooldown -= Time.deltaTime;
            }
        }

        void OnTriggerEnter2D(Collider2D collider) {
            if (IsHeld) {
                return;
            }
            PlayerController Player = collider.GetComponent<PlayerController>();
            if (Player != null) {
                IsHeld = true;
                Player.SetGun(this);
                Destroy(GetComponent<BoxCollider2D>());
            }
        }

        public bool Shoot(Vector2 direction, float rotation) {
            if (Bullet == null) {
                Debug.LogError("THERE IS NO BULLET");
            } else {
                if (CurrCooldown <= 0) {
                    CurrCooldown = Cooldown;
                    Bullet ShotBullet = Instantiate(Bullet, BulletHole.position, new Quaternion());
                    ShotBullet.Direction = direction.normalized;
                    ShotBullet.InitialRotation = rotation;
                    return true;
                }
            }
            return false;
        }

        public void FlipGun(bool flipped) {
            Sprite.flipY = flipped;
        }
    }
}