Danro/Assets/Scripts/Behaviour/Projectiles/EnemyBasicProjectile.cs

using UnityEngine;

using RR.Game2D.Core.Managers;
using RR.Game2D.Behaviour;

namespace RR.Game2D.Entities.Projectiles
{
    public class EnemyBasicProjectile : BasicProjectile
    {
        [SerializeField] public bool despawnInstantly = false;
        [SerializeField] public float fallGravityScale = 3f;

        protected override void Awake()
        {
            base.Awake();

            _rb.bodyType = RigidbodyType2D.Dynamic;
            _rb.gravityScale = 0;
        }

        private void Update()
        {
            if (Time.time - _launchTime>= maxLifetime)
            {   
                if (despawnInstantly) Despawn();
                else
                {
                    _rb.bodyType = RigidbodyType2D.Dynamic;
                    _rb.gravityScale = fallGravityScale;
                }
            }
        }

        protected override void OnHit(Collision2D target, Vector2 point, Vector2 relativeVelocity)
        {
            var player = GameManager.Instance.PlayerObj;

            if (target.collider.CompareTag("Player"))
            {
                player.GetComponent<PlayerController>().TakeDamage(projectileDamage);
            }
            else if (target.collider.CompareTag("Projectile") || target.collider.CompareTag("Enemy"))
                Despawn();

            base.OnHit(target, point, relativeVelocity);
        }
    }
}