GameDev.CoreSystems/Scripts/Weapon.cs

using UnityEngine;

namespace GameDev.CoreSystems
{
    public class Weapon : MonoBehaviour, IWeapon
    {
        [field: Header("RigConnections")]
        [field: SerializeField] public Transform PivotPoint { get; private set; }
        [field: SerializeField] public Transform BarrelEndPoint { get; private set; }

        [field: Header("Config")]
        [field: SerializeField] public float FireRate { get; set; }
        [field: SerializeField] public int Damage { get; set; }

        [field: Header("State")]
        [field: SerializeField] public bool FireWeapon { get; set; }
        [field: SerializeField] private float _timeUntilFire;

        [field: Header("Stats")]
        [field: SerializeField] public int NumberOfKills { get; set; }
        [field: SerializeField] public int DamageDealt { get; set; }

        private void Update()
        {
            if (FireWeapon)
            {
                _timeUntilFire -= Time.deltaTime;

                if (!(_timeUntilFire <= 0)) return;

                var position = BarrelEndPoint.position;
                var forward = BarrelEndPoint.forward;
                var ray = new Ray(position, forward);

                if (Physics.Raycast(ray, out RaycastHit hitInfo))
                {
                    if (hitInfo.transform.TryGetComponent(out Targetable target))
                    {
                        target.Damageable.DeathEvent.AddListener(IncrementKillCount);
                        Debug.DrawRay(position, forward * Vector3.Distance(position, target.GetCenterPosition()),
                            Color.red, 0.1f);
                        target.Damageable.ModifyHealth(-Damage);
                        DamageDealt += Damage;
                        target.Damageable.DeathEvent.RemoveListener(IncrementKillCount);
                    }
                }

                _timeUntilFire = FireRate;
            }
            else
            {
                _timeUntilFire = 0;
            }
        }

        private void IncrementKillCount()
        {
            NumberOfKills += 1;
        }
    }
}