TextController.cs

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

public class TextController : MonoBehaviour
{

    public Text currentText;

    private enum States { start, h_1, h_2, h_3, c_1, c_2, c_22, c_23, c_3, c_4, r_1, r_12, r_2, r_22, r_3, ld, w, bh, e, r, end };
    private States currentState;
    private States previousState;
    private States nextState;
    private string rightKey;

    public GameObject neonLogo;
    public GameObject stormSound;
    public GameObject thunderSound;

    public GameObject entranceDoorSound;
    public GameObject doorChimeSound;


    // Use this for initialization
    void Start()
    {
        currentState = States.start;
    }

    // Update is called once per frame
    void Update()
    {
        if (currentState == States.start)
        {
            state_start();
        }
        else if (currentState == States.h_1)
        {
            state_hall_1();
        }
        else if (currentState == States.h_2)
        {
            state_hall_2();
        }
        else if (currentState == States.h_3)
        {
            state_hall_3();
        }
        else if (currentState == States.c_1)
        {
            state_corridor_1();
        }
        else if (currentState == States.c_2)
        {
            state_corridor_2();
        }
        else if (currentState == States.c_22)
        {
            state_corridor_22();
        }
        else if (currentState == States.c_23)
        {
            state_corridor_23();
        }
        else if (currentState == States.c_3)
        {
            state_corridor_3();
        }
        else if (currentState == States.c_4)
        {
            state_corridor_4();
        }
        else if (currentState == States.r_1)
        {
            state_room_1();
        }
        else if (currentState == States.r_12)
        {
            state_room_12();
        }
        else if (currentState == States.r_2)
        {
            state_room_2();
        }
        else if (currentState == States.r_22)
        {
            state_room_22();
        }
        else if (currentState == States.r_3)
        {
            state_room_3();
        }
        else if (currentState == States.ld)
        {
            state_lockeddoor();
        }
        else if (currentState == States.w)
        {
            state_woman();
        }
        else if (currentState == States.bh)
        {
            state_bathroom();
        }
        else if (currentState == States.e)
        {
            state_empty();
        }
        else if (currentState == States.r)
        {
            state_red();
        }
        else if (currentState == States.end)
        {
            state_end();
        }
    }






    // Start Method
    void state_start()
    {
        neonLogo.SetActive(true);
        stormSound.SetActive(true);
        thunderSound.SetActive(true);
        currentText.text = "The storm finally catches up as you approach the inn. \n\nHolding your bag above your head to shield your eyes from the heavy drops, you glance at a neon sign steaming and runs for the [E]ntrance. \n\nYour wet clothes weighting a ton, you shake a bit off as you step on the wooden porch, trying to peak through the frosted glass next to the door.";

        if (Input.GetKeyDown(KeyCode.E))
        {
            currentState = States.h_1;
        }

    }

    // First Hall Method
    //int index = 0; // Change here ( Essa variavel nao servia para nada, entao comentei )
    public int i = 0;
    public string[] texts = new string[] { "text1", "text2", "text3" };
    void state_hall_1()
    {

        neonLogo.SetActive(false);
        stormSound.SetActive(false);
        thunderSound.SetActive(false);

        entranceDoorSound.SetActive(true);
        doorChimeSound.SetActive(true);

        //currentText.text = "Closing the door behind you, your dripping clothes darken the busted carpet that crosses the hall.\n\nSeveral old lamps tint yellow the dark wooden walls, while a single white light sits on the [D]esk.\n\nThe whole place creaks under the storm.\n\n" + "A shaded figure reads a large book by the light.";

        if (i < texts.Length) // Change here ( Coloquei essa codição para alterar o texto somente se ainda estiver mais texto )
        {
            currentText.text = texts[i];
        }

        if (Input.GetKeyDown(KeyCode.Space))
        {
            if (i < texts.Length)
            {
                i++;
                //currentText.text = texts[i]; // Change here ( Apos iterar o 'i' nao precisa mudar o texto novamente, pois vc ja muda no codigo acima, pois esse metodo roda no update )
            }
        }

        if (Input.GetKeyDown(KeyCode.C) && i >= texts.Length - 1) // // Change here ( Aqui verifica se ja esta no ultimo texto, e a pessoa apertou o C )
        {
            currentState = States.c_1;
        }



    }

    // Second Hall Method
    void state_hall_2()
    {
        currentText.text = "Welcome to Hall_2.\n\n" + "Press C for " + previousState;

        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = previousState;
        }
    }

    // Third Hall Method
    void state_hall_3()
    {
        currentText.text = "Welcome to Hall_3.\n\n" + "This is the End. Press Enter to go back to Start or Space to End.";
        if (Input.GetKeyDown(KeyCode.Return))
        {
            currentState = States.start;
        }
        else if (Input.GetKeyDown(KeyCode.Space))
        {
            currentState = States.end;
        }
    }

    // First Corridor Method, after first hall, before everything else
    void state_corridor_1()
    {
        currentText.text = "Welcome to Corridor_1.\n\n" + "Press H for H_2 or L for LD.";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.L))
        {
            currentState = States.ld;
        }
    }

    // Second Corridor Method, after first room, before woman.
    void state_corridor_2()
    {
        currentText.text = "Welcome to Corridor_2.\n\n" + "Press H for H_2, W for Woman, B for BH or R for R_1.2.";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.W))
        {
            previousState = currentState;
            currentState = States.w;
        }
        else if (Input.GetKeyDown(KeyCode.B))
        {
            previousState = currentState;
            currentState = States.bh;
        }
        else if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r_12;
        }
    }

    // 2.2 Corridor Method, after Room 1.2, before woman.
    void state_corridor_22()
    {
        currentText.text = "Welcome to Corridor_2.2.\n\n" + "Press H for H_2 or W for Woman.";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.W))
        {
            previousState = currentState;
            currentState = States.w;
        }

    }

    // 2.3 Corridor Method, after woman, before second room.
    void state_corridor_23()
    {
        currentText.text = "Welcome to Corridor_2.3.\n\n" + "Press H for H_2, B for BH or R for R_2";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.B))
        {
            previousState = currentState;
            currentState = States.bh;
        }
        else if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r_2;
        }
    }

    // Third Corridor Method, after room 2.2, before third room.
    void state_corridor_3()
    {
        currentText.text = "Welcome to Corridor_3.\n\n" + "Press H for H_2, B for BH, E for Empty or R for R_3";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.B))
        {
            previousState = currentState;
            currentState = States.bh;
        }
        else if (Input.GetKeyDown(KeyCode.E))
        {
            currentState = States.e;
        }
        else if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r_3;
        }
    }

    // Fourth Corridor Method, after third room, before red.
    void state_corridor_4()
    {
        currentText.text = "Welcome to Corridor_4.\n\n" + "Press H for H_2 or R for Red.";
        if (Input.GetKeyDown(KeyCode.H))
        {
            previousState = currentState;
            currentState = States.h_2;
        }
        else if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r;
        }

    }

    // First Room, after locked door, before second corridor.
    void state_room_1()
    {
        currentText.text = "Welcome to Room_1.\n\n" + "Press C for C_2.";
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = States.c_2;
        }

    }

    // Room 1.2, after second corridor, before corridor 2.2.
    void state_room_12()
    {
        currentText.text = "Welcome to Room_1.2.\n\n" + "Press C for C_2.2.";
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = States.c_22;
        }

    }

    // Second Room, after woman, before room 2.2.
    void state_room_2()
    {
        currentText.text = "Welcome to Room_2.\n\n" + "Press R for R_2.2.";
        if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r_22;
        }

    }

    // Room 2.2, after second room, before third corridor.
    void state_room_22()
    {
        currentText.text = "Welcome to Room_2.2.\n\n" + "Press C for C_3.";
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = States.c_3;
        }

    }

    // Room 3, after third corridor, before fourth corridor.
    void state_room_3()
    {
        currentText.text = "Welcome to Room_3.\n\n" + "Press C for C_4.";
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = States.c_4;
        }

    }

    // Locked door, after first corridor, before first room.
    void state_lockeddoor()
    {
        currentText.text = "Welcome to Locked_Door.\n\n" + "Press R for R_1.";
        if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = States.r_1;
        }

    }

    // Woman, after second corridor or corridor 2.2, before second room.
    void state_woman()
    {
        if (previousState == States.c_2)
        {
            nextState = States.c_23;
            rightKey = "C";
        }
        else if (previousState == States.c_22)
        {
            nextState = States.r_2;
            rightKey = "R";
        }

        currentText.text = "Welcome to Woman.\n\n" + "Press " + rightKey + " for " + nextState;

        if (Input.GetKeyDown(KeyCode.R))
        {
            currentState = nextState;
        }
        else if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = nextState;
        }
    }

    // Bathroom.
    void state_bathroom()
    {

        currentText.text = "Welcome to Bathroom.\n\n" + "Press C for " + previousState;
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = previousState;
        }

    }

    // Empty.
    void state_empty()
    {

        currentText.text = "Welcome to Empty.\n\n" + "Press C for C_3";
        if (Input.GetKeyDown(KeyCode.C))
        {
            currentState = States.c_3;
        }

    }

    // Red.
    void state_red()
    {

        currentText.text = "Welcome to Red.\n\n" + "Press H for H_3";
        if (Input.GetKeyDown(KeyCode.H))
        {
            currentState = States.h_3;
        }

    }

    // End.
    void state_end()
    {

        currentText.text = "This is the End.\n\n" + "Press ESC to stop.";


    }

}