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

[RequireComponent(typeof(Rigidbody))]
public class PlayerMovement : MonoBehaviour
{
    [Header("Forward")]
    public float maxSpeed = 12f;
    public float acceleration = 24f;
    [Header("Turning")]
    public float maxTurnSpeed = 180f;
    public float turnAcceleration = 720f;

    public string accelerateButton;
    public string decelerateButton;
    public string turnAxis;

    private Rigidbody rbody;
    private Vector3 inputDirection = Vector3.zero;
    private Vector3 wantedDirection = Vector3.zero;
    private float forwardMove = 0;
    private float turnMove = 0;
    private float wantedTurn = 0;
    private Vector3 wantedVelocity = Vector3.zero;
    private bool shouldBreak;

    private void Awake()
    {
        rbody = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update()
    {
        UpdateInputDirection();

        wantedDirection = transform.TransformDirection(new Vector3(0, 0, forwardMove));

        wantedVelocity = wantedDirection * maxSpeed;
        wantedTurn = turnMove * maxTurnSpeed * Time.deltaTime;

        if (shouldBreak || forwardMove > 0)
        {
            rbody.velocity = Vector3.MoveTowards(rbody.velocity, wantedVelocity, acceleration * Time.deltaTime);
        }
        rbody.angularVelocity = new Vector3(0, wantedTurn, 0);
    }

    void UpdateInputDirection()
    {
        if (Input.GetKeyDown(KeyCode.A))
            rbody.AddForce(-transform.forward * 4, ForceMode.VelocityChange);

        forwardMove = (Input.GetKey(accelerateButton) ? 1 : 0);
        turnMove = Input.GetAxis(turnAxis);

        //Dont use..
        inputDirection.x = Input.GetAxis(turnAxis);
        inputDirection.z = (Input.GetKey(accelerateButton) ? 1 : 0);

        shouldBreak = Input.GetKey(decelerateButton);
    }
}