using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public float speed = 5f;
    public float mouseSensitivity = 2f;
    public Camera playerCamera;
    public GameObject bulletImpact;
    public GameObject playerModel;
    public float jumpForce = 8f;
    public float gravity = 9.8f;

    private float verticalRotation = 0f;
    private CharacterController controller;
    private Vector3 velocity;

    void Start()
    {
        controller = GetComponent<CharacterController>();
        Cursor.lockState = CursorLockMode.Locked;
    }

    void Update()
    {
        MovePlayer();
        LookAround();
        if (Input.GetButtonDown("Fire1"))
        {
            Shoot();
        }
        if (Input.GetButtonDown("Jump") && controller.isGrounded)
        {
            velocity.y = jumpForce;
        }
        ApplyGravity();
    }

    void MovePlayer()
    {
        float moveX = Input.GetAxis("Horizontal") * speed;
        float moveZ = Input.GetAxis("Vertical") * speed;
        Vector3 move = transform.right * moveX + transform.forward * moveZ;
        controller.Move(move * Time.deltaTime);
    }

    void LookAround()
    {
        float mouseX = Input.GetAxis("Mouse X") * mouseSensitivity;
        float mouseY = Input.GetAxis("Mouse Y") * mouseSensitivity;
        verticalRotation -= mouseY;
        verticalRotation = Mathf.Clamp(verticalRotation, -90f, 90f);
        playerCamera.transform.localRotation = Quaternion.Euler(verticalRotation, 0f, 0f);
        transform.Rotate(Vector3.up * mouseX);
    }

    void Shoot()
    {
        RaycastHit hit;
        if (Physics.Raycast(playerCamera.transform.position, playerCamera.transform.forward, out hit, 100f))
        {
            Debug.Log("Hit: " + hit.transform.name);
            if (hit.transform.CompareTag("Enemy"))
            {
                Destroy(hit.transform.gameObject);
            }
            Instantiate(bulletImpact, hit.point, Quaternion.LookRotation(hit.normal));
        }
    }

    void ApplyGravity()
    {
        if (!controller.isGrounded)
        {
            velocity.y -= gravity * Time.deltaTime;
        }
        else if (velocity.y < 0)
        {
            velocity.y = -2f;
        }
        controller.Move(velocity * Time.deltaTime);
    }
}