using System;
using UnityEngine;

[RequireComponent(typeof(CharacterController))]
public class PlayerMove : MonoBehaviour
{
    private CharacterController _controller;
    [SerializeField] private float moveSpeed = 6.0f;

    private Camera mainCamera;
    [SerializeField] private float rotateSpeed = 50;
    private float x, y;

    //重力
    [SerializeField] private float gravity = 110f;
    [SerializeField] private float jumpSpeed = 8.0f;
    private Vector3 moveDirection = Vector3.zero;

    private void Awake()
    {
        _controller = GetComponent<CharacterController>();
        mainCamera = Camera.main;

    }

    private void Update()
    {
        // Move
        if (_controller.isGrounded)
        {
            moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
            moveDirection = transform.TransformDirection(moveDirection);
            moveDirection *= moveSpeed;
            if (Input.GetButton("Jump"))
                moveDirection.y = jumpSpeed;
        }

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

        // Rotate
        if (Input.GetMouseButton(1))
        {
            y = Input.GetAxis("Mouse X");
            x = Input.GetAxis("Mouse Y");
            mainCamera.transform.eulerAngles +=
                new Vector3(-x * Time.deltaTime * rotateSpeed, 0, 0);
            transform.eulerAngles +=
                new Vector3(0, y * Time.deltaTime * rotateSpeed, 0);
        }
    }
}