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

public class CharacterController2D : MonoBehaviour
{
    public GameObject ground;

    private Rigidbody2D rb;

    private float directionValue;
    private float movementSpeed;
    private float jumpForce;

    private KeyCode jumpKey;

    private bool isGrounded;
    private bool tickJump;


    private void Awake()
    {
        ground = GameObject.Find("Ground");

        rb = gameObject.GetComponent<Rigidbody2D>();

        movementSpeed = 5;
        jumpForce = 350;

        jumpKey = KeyCode.Space;

        isGrounded = true;
        tickJump = false;
    }


    private void Update()
    {
        directionValue = Input.GetAxisRaw("Horizontal");


        if(directionValue != 0)
        {
            MoveCharacter();
        }


        if(Input.GetKeyDown(jumpKey) && isGrounded == true)
        {
            tickJump = true;
        }
    }


    private void FixedUpdate()
    {
        if (gameObject.GetComponent<BoxCollider2D>().IsTouching(ground.GetComponentInChildren<BoxCollider2D>()))
        {
            isGrounded = true;
        }
        else
        {
            isGrounded = false;
        }


        if(tickJump == true)
        {
            rb.AddForce(Vector2.up * jumpForce * Time.deltaTime, ForceMode2D.Impulse);

            tickJump = false;
        }
    }


    private void MoveCharacter()
    {
        Transform characterTransform = gameObject.transform;

        Vector3 newPosition = Vector3.zero;


        newPosition.Set(directionValue * movementSpeed, 0, 0);


        characterTransform.position += newPosition * Time.deltaTime;
    }


    private IEnumerator JumpEvent()
    {
        do
        {
            yield return null;
        }

        while (rb.velocity.y != 0 && isGrounded != true);


        isGrounded = true;
    }
}