zumbi-game/Assets/Scripts/GunController.cs

using UnityEngine;
using UnityEngine.InputSystem;

public class GunController : MonoBehaviour
{
    [SerializeField] private InputActionReference rightTriggerAction;

    [Header("Audio")]
    [SerializeField] private AudioSource audioSource;
    [SerializeField] private AudioClip triggerSoundEffect;

    [Header("Raycast")]
    [SerializeField] private Transform muzzlePoint;
    [SerializeField] private float maxRange = 100f;
    [SerializeField] private float damage = 25f;

    private void OnEnable()
    {
        rightTriggerAction.action.Enable();
        rightTriggerAction.action.performed += OnTriggerPressed;
    }

    private void OnDisable()
    {
        rightTriggerAction.action.performed -= OnTriggerPressed;
        rightTriggerAction.action.Disable();
    }

    private void OnTriggerPressed(InputAction.CallbackContext context)
    {
        HandleShoot();
    }

    private void HandleShoot()
    {
        audioSource.PlayOneShot(triggerSoundEffect);

        Vector3 origin = muzzlePoint != null ? muzzlePoint.position : transform.position;
        Vector3 direction = muzzlePoint != null ? muzzlePoint.forward : transform.forward;

        if (Physics.Raycast(origin, direction, out RaycastHit hit, maxRange))
        {
            if (hit.collider.CompareTag("Zombie"))
            {
                if (hit.collider.TryGetComponent(out ZombieController zombie))
                {
                    zombie.TakeDamage(damage);
                }
            }
        }

        Debug.DrawRay(origin, direction * maxRange, Color.red, 0.5f);
    }
}