ThirdPersonShooterController.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Cinemachine;
using StarterAssets;
using UnityEngine.InputSystem;

public class ThirdPersonShooterController : MonoBehaviour
{
    [SerializeField] private CinemachineVirtualCamera aimVirtualCamera;
    [SerializeField] private float normalSensitivity;
    [SerializeField] private float aimSensitivity;
    [SerializeField] private LayerMask aimColliderLayerMask = new LayerMask();
    [SerializeField] private Transform debugTransform;
    [SerializeField] private Transform pfBulletProjectile;
    [SerializeField] private Transform spawnBulletPosition;

    private ThirdPersonController thirdPersonController;
    private StarterAssetsInputs starterAssetsInputs;

    private void Awake()
    {
        thirdPersonController = GetComponent<ThirdPersonController>();
        starterAssetsInputs = GetComponent<StarterAssetsInputs>();
    }

    // Update is called once per frame
    void Update()
    {
        Vector3 mouseWorldPosiiton = Vector3.zero;
        Vector2 screenCenterPoint = new Vector2(Screen.width / 2f, Screen.height / 2f);
        Ray ray = Camera.main.ScreenPointToRay(screenCenterPoint);
        if (Physics.Raycast(ray, out RaycastHit raycastHit, 999f, aimColliderLayerMask))
        {
            debugTransform.position = raycastHit.point;
            mouseWorldPosiiton = raycastHit.point;
        }
        else
        {
            debugTransform.position = ray.GetPoint(20f);
        }

        if (starterAssetsInputs.aim)
        {
            aimVirtualCamera.gameObject.SetActive(true);
            thirdPersonController.SetSensitivity(aimSensitivity);
            thirdPersonController.SetRotateOnMove(false);

            Vector3 worldAimTarget = mouseWorldPosiiton;
            worldAimTarget.y = transform.position.y;
            Vector3 aimDirection = (worldAimTarget - transform.position).normalized;
            transform.forward = Vector3.Lerp(transform.forward, aimDirection, Time.deltaTime * 20f);
        } else
        {
            aimVirtualCamera.gameObject.SetActive(false);
            thirdPersonController.SetSensitivity(normalSensitivity);
            thirdPersonController.SetRotateOnMove(true);
        }

        if(starterAssetsInputs.shoot)
        {
            Vector3 aimDir = (mouseWorldPosiiton - spawnBulletPosition.position).normalized;
            Instantiate(pfBulletProjectile, spawnBulletPosition.position, Quaternion.LookRotation(aimDir, Vector3.up));
            starterAssetsInputs.shoot = false;
        }
    }
}