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

public class PlayerController : MonoBehaviour
{
    CharacterController CharacterController;

    public float moveSpeed = 8f;
    public float maxTurnSpeed = 150f;
    public float jumpSpeed;

    public float horizontal;
    public float vertical;
    public float turn;

    public bool isGrounded = true;
    public bool isFalling;
    public Vector3 velocity;

    // Start is called before the first frame update
    void Start()
    {
        CharacterController = GetComponent<CharacterController>();

        Camera.main.orthographic = false;
        Camera.main.transform.SetParent(transform);
        Camera.main.transform.localPosition = new Vector3(0f, 3f, -8f);
        Camera.main.transform.localEulerAngles = new Vector3(10f, 0f, 0f);
    }

    

    // Update is called once per frame
    void Update()
    {
        horizontal = Input.GetAxis("Horizontal");
        vertical = Input.GetAxis("Vertical");
        turn = Input.GetAxisRaw("Mouse X");

        if (isGrounded)
            isFalling = false;

        if ((isGrounded || !isFalling) && jumpSpeed < 1f && Input.GetKey(KeyCode.Space))
        {
            jumpSpeed = Mathf.Lerp(jumpSpeed, 1f, 0.5f);
        }
        else if (!isGrounded)
        {
            isFalling = true;
            jumpSpeed = 0;
        }
    }

    private void FixedUpdate()
    {
        transform.Rotate(0f, turn * Time.fixedDeltaTime* maxTurnSpeed, 0f);
        Vector3 direction = new Vector3(horizontal, jumpSpeed, vertical);
        direction = Vector3.ClampMagnitude(direction, 1f);
        direction = transform.TransformDirection(direction);
        direction *= moveSpeed;
        if (jumpSpeed > 0)
            CharacterController.Move(direction * Time.fixedDeltaTime);
        else
            CharacterController.SimpleMove(direction);

        isGrounded = CharacterController.isGrounded;
        velocity = CharacterController.velocity;
    }
}