using UnityEngine;
using System.Collections;

public class Player : MonoBehaviour
{
    [SerializeField]
    float _MovementSpeed = 3f;

    Rigidbody2D _body2D = null;

    Animator _animator;

    bool facingRight = true;

    enum States
    {
        IdleRight, MoveRight, MoveRightDown, MoveLeftDown, MoveLeft, IdleLeft, MoveLeftUp, MoveRightUp
    }

    void Awake()
    {
        _body2D = GetComponent<Rigidbody2D>();
        _animator = GetComponent<Animator>();
    }
    
    void FixedUpdate()
    {
        float horizontal = Input.GetAxisRaw("Horizontal");
        float vertical = Input.GetAxisRaw("Vertical");

        SetAnimation(horizontal, vertical);

        HandleMovement(horizontal);
    }

    void HandleMovement(float horizontal)
    {
        _body2D.velocity = new Vector2(horizontal * _MovementSpeed, _body2D.velocity.y);
    }

    void SetAnimation(float horizontal, float vertical)
    {
        if (facingRight && horizontal > -0.01f && horizontal < 0.01f && vertical > -0.01f && vertical < 0.01f)
        {
            _animator.SetInteger("state", (int)States.IdleRight);
        }
        else if (horizontal > 0.01f && vertical > -0.01f && vertical < 0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveRight);
            facingRight = true;
        }
        else if (horizontal > 0.01f && vertical < -0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveRightDown);
            facingRight = true;
        }
        else if (horizontal > 0.01f && vertical > 0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveRightUp);
            facingRight = true;
        }
        else if (!facingRight && horizontal > -0.01f && horizontal < 0.01f && vertical > -0.01f && vertical < 0.01f)
        {
            _animator.SetInteger("state", (int)States.IdleLeft);
        }
        else if (horizontal < -0.01f && vertical > -0.01f && vertical < 0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveLeft);
            facingRight = false;
        }
        else if (horizontal < -0.01f && vertical < -0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveLeftDown);
            facingRight = false;
        }
        else if (horizontal < -0.01f && vertical > 0.01f)
        {
            _animator.SetInteger("state", (int)States.MoveLeftUp);
            facingRight = false;
        }
    }
}