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

[RequireComponent(typeof(CharacterController))]
public class PlayerMovement : MonoBehaviour
{
    [Header("Movement Settings")]
    public float walkSpeed = 5f;
    public float sprintSpeed = 10f;
    public float crouchSpeed = 2f;
    public float jumpForce = 8f;
    public float gravity = 20f;

    [Header("Crouch Settings")]
    public Transform playerCamera;
    public float standingHeight = 2f;
    public float crouchingHeight = 1f;

    private CharacterController controller;
    private bool isCrouching = false;
    private bool isSprinting = false;
    private Vector3 moveDirection = Vector3.zero;

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

    private void Update()
    {
        HandleMovementInput();
        HandleCrouchInput();
    }

    private void HandleMovementInput()
    {
        float moveSpeed = isCrouching ? crouchSpeed : (isSprinting ? sprintSpeed : walkSpeed);

        float horizontalInput = Input.GetAxis("Horizontal");
        float verticalInput = Input.GetAxis("Vertical");

        Vector3 inputDirection = transform.TransformDirection(new Vector3(horizontalInput, 0f, verticalInput));
        moveDirection = inputDirection.normalized * moveSpeed;

        if (controller.isGrounded)
        {
            if (Input.GetButtonDown("Jump"))
            {
                moveDirection.y = jumpForce;
            }
        }

        moveDirection.y -= gravity * Time.deltaTime;
        controller.Move(moveDirection * Time.deltaTime);
    }

    private void HandleCrouchInput()
    {
        if (Input.GetButtonDown("Fire2"))
        {
            isCrouching = !isCrouching;
            float targetHeight = isCrouching ? crouchingHeight : standingHeight;
            playerCamera.localPosition = new Vector3(0f, targetHeight, 0f);
        }

        if (Input.GetButtonDown("Fire1"))
        {
            isSprinting = true;
        }

        if (Input.GetButtonUp("Fire1"))
        {
            isSprinting = false;
        }
    }
}