Main.cs

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

public class Main : MonoBehaviour
{

    [Header("Sala:")]
    public GameObject[] SalaButtons;

    [Header("Dificudade:")]
    public GameObject[] DificudadeButtons;

    [Header("Oponentes:")]
    public GameObject[] OponentesButtons;

    [Header("Componentes:")]
    public GameObject SelectionBar;
    public GameObject SelectionArrows;

    public int BarPosi;

    [Header("Posicoes da Barra:")]
    public Transform[] BarSelectionPositions;

    private int ClickButton;

    public Color TextOffColor;
    public Color TextOnColor;

    // Use this for initialization
    void Start()
    {
        if (BarPosi == 0)
        {

            if (ClickButton == 0)
            {
                SalaButtons[0].GetComponent<Text>().color = TextOnColor;
                SalaButtons[0].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 1)
            {
                SalaButtons[1].GetComponent<Text>().color = TextOnColor;
                SalaButtons[1].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 2)
            {
                SalaButtons[2].GetComponent<Text>().color = TextOnColor;
                SalaButtons[2].GetComponent<Animation>().enabled = true;
            }

        }
        else
        {
            for (int i = 0; i < SalaButtons.Length; i++)
            {
                SalaButtons[i].GetComponent<Text>().color = TextOffColor;
                SalaButtons[i].GetComponent<Animation>().enabled = false;
            }
        }

        if (BarPosi == 1)
        {

            if (ClickButton == 0)
            {
                DificudadeButtons[0].GetComponent<Text>().color = TextOnColor;
                DificudadeButtons[0].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 1)
            {
                DificudadeButtons[1].GetComponent<Text>().color = TextOnColor;
                DificudadeButtons[1].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 2)
            {
                DificudadeButtons[2].GetComponent<Text>().color = TextOnColor;
                DificudadeButtons[2].GetComponent<Animation>().enabled = true;
            }

        }
        else
        {
            for (int a = 0; a < DificudadeButtons.Length; a++)
            {
                DificudadeButtons[a].GetComponent<Text>().color = TextOffColor;
                DificudadeButtons[a].GetComponent<Animation>().enabled = false;
            }
        }

        if (BarPosi == 2)
        {

            if (ClickButton == 0)
            {
                OponentesButtons[0].GetComponent<Text>().color = TextOnColor;
                OponentesButtons[0].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 1)
            {
                OponentesButtons[1].GetComponent<Text>().color = TextOnColor;
                OponentesButtons[1].GetComponent<Animation>().enabled = true;
            }

            if (ClickButton == 2)
            {
                OponentesButtons[2].GetComponent<Text>().color = TextOnColor;
                OponentesButtons[2].GetComponent<Animation>().enabled = true;
            }

        }
        else
        {
            for (int b = 0; b < OponentesButtons.Length; b++)
            {
                OponentesButtons[b].GetComponent<Text>().color = TextOffColor;
                OponentesButtons[b].GetComponent<Animation>().enabled = false;
            }
        }

    }

    public void NextButton()
    {

        BarPosi++;

        if (BarPosi == BarSelectionPositions.Length)
        {
            BarPosi = 0;
        }

        SelectionBar.transform.position = new Vector3(SelectionBar.transform.position.x, BarSelectionPositions[BarPosi].position.y, SelectionBar.transform.position.z);
        SelectionArrows.transform.position = new Vector3(SelectionArrows.transform.position.x, BarSelectionPositions[BarPosi].position.y, SelectionArrows.transform.position.z);

    }

    public void BackButton()
    {

        BarPosi--;

        if (BarPosi < 0)
        {
            int Resu = BarSelectionPositions.Length - 1;
            BarPosi = Resu;
        }

        SelectionBar.transform.position = new Vector3(SelectionBar.transform.position.x, BarSelectionPositions[BarPosi].position.y, SelectionBar.transform.position.z);
        SelectionArrows.transform.position = new Vector3(SelectionArrows.transform.position.x, BarSelectionPositions[BarPosi].position.y, SelectionArrows.transform.position.z);

    }

    public void SelectionNextButton()
    {

        ClickButton++;

        if (BarPosi == 0)
        {

            for (int i = 0; i < SalaButtons.Length; i++)
            {
                SalaButtons[i].SetActive(false);
            }

            if (ClickButton == SalaButtons.Length)
            {
                ClickButton = 0;
            }

            SalaButtons[ClickButton].SetActive(true);

        }
        if (BarPosi == 1)
        {

            for (int i = 0; i < DificudadeButtons.Length; i++)
            {
                DificudadeButtons[i].SetActive(false);
            }

            if (ClickButton == DificudadeButtons.Length)
            {
                ClickButton = 0;
            }

            DificudadeButtons[ClickButton].SetActive(true);

        }
        if (BarPosi == 2)
        {

            for (int i = 0; i < OponentesButtons.Length; i++)
            {
                OponentesButtons[i].SetActive(false);
            }

            if (ClickButton == OponentesButtons.Length)
            {
                ClickButton = 0;
            }

            OponentesButtons[ClickButton].SetActive(true);

        }

    }

    public void SelectionBackButton()
    {
        ClickButton--;

        if (BarPosi == 0)
        {

            for (int i = 0; i < SalaButtons.Length; i++)
            {
                if(SalaButtons[ClickButton].GetComponent<Text>().text.Length != ClickButton)
                {
                    SalaButtons[i].SetActive(false);
                }
            }

            int Resu = SalaButtons.Length - 1;

            if (ClickButton < 0)
            {
                ClickButton = Resu;
            }

            SalaButtons[ClickButton].SetActive(true);

        }

        if (BarPosi == 1)
        {

            for (int i = 0; i < DificudadeButtons.Length; i++)
            {
                DificudadeButtons[i].SetActive(false);
            }

            int Resu = DificudadeButtons.Length - 1;

            if (ClickButton < 0)
            {
                ClickButton = Resu;
            }

            DificudadeButtons[ClickButton].SetActive(true);

        }

        if (BarPosi == 2)
        {

            for (int i = 0; i < OponentesButtons.Length; i++)
            {
                OponentesButtons[i].SetActive(false);
            }

            int Resu = OponentesButtons.Length - 1;

            if (ClickButton < 0)
            {
                ClickButton = Resu;
            }

            OponentesButtons[ClickButton].SetActive(true);

        }

    }



}