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

public class HeroController : MonoBehaviour
{
        [Header("Швидкість руху")]
        [Range(1f, 20f)]
        [SerializeField] private float _movementSpeed = 5f;

        [Header("Прискорення руху")]
        [Range(1f, 5f)]
        [SerializeField] private float _runMultiplier = 2f;

        [Header("Гравітація")]
        [SerializeField] private float _gravity = -9.81f;
    
        [Header("Сила стрибку")]
        [Range(1f, 20f)]
        [SerializeField] private float _jumpHeight = 2f;

        private CharacterController _characterController;
        private Vector3 _controllerVelocity;

        void Start()
        {
            _characterController = GetComponent<CharacterController>();
        }

        void Update()
        {
            HandleMovement();
            HandleGravity();
            HandleJump();
        }

        private void HandleMovement()
        {
            float moveX = Input.GetAxis("Horizontal");
            float moveZ = Input.GetAxis("Vertical");

            Vector3 movement = transform.right * moveX + transform.forward * moveZ;

            float currentSpeed = _movementSpeed;
            if (Input.GetKey(KeyCode.LeftShift))
            {
                currentSpeed *= _runMultiplier;
            }

            _characterController.Move(movement * currentSpeed * Time.deltaTime);
        }

        private void HandleGravity()
        {
            if (_characterController.isGrounded && _controllerVelocity.y < 0)
            {
                _controllerVelocity.y = -2f; 
            }

            _controllerVelocity.y += _gravity * Time.deltaTime;

            _characterController.Move(_controllerVelocity * Time.deltaTime);
        }

        private void HandleJump()
        {
            if (Input.GetButtonDown("Jump") && _characterController.isGrounded)
            {
                _controllerVelocity.y = Mathf.Sqrt(_jumpHeight * -2f * _gravity);
            }
        }
    }