Localización usando .PO

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

public class LanguageManager : MonoBehaviour
{
    //This is where the current loaded language will go
    private static Hashtable textTable;

    [HideInInspector]
    //Just a reference for the current language, default to english
    public string CurrentLanguage = "english";

    //Run this when you are ready to start the language process, you usually want to do this after everything has loaded
    public void Init()
    {
        //You should use an enum for storing settings that are a unique list,
        //This gets a string representation of an enum, 
        CurrentLanguage = Enum.GetName(typeof(Settings.Languages), (int)YourGameManager.Settings.Language);

        //Pass that language into LoadLanguage, remember we are in init so this should only run once.
        LoadLanguage(CurrentLanguage);
    }

    //You call this when you want to update all text boxes with the new translation.
    //Run this after Init
    //Run this whenever you run LoadLanguage
    //Run this whenever you load a new scene and want to translate the new UI
    public void UpdateAllTextBoxes()
    {      
        //Find all active and inactive text boxes and loop through 'em
        UILocalizeText[] temp = Resources.FindObjectsOfTypeAll<UILocalizeText>();
        foreach (UILocalizeText text_box in temp)
        {
            //Run the update translation function on each text 
            text_box.UpdateTranslation();
        }
    }

    //Run this whenever a language changes, like in when a setting is changed - then run UpdateAllTextBoxes
    //This is based off of http://wiki.unity3d.com/index.php?title=TextManager, though heavily modified and expanded
    public void LoadLanguage(string lang)
    {
        CurrentLanguage = lang;

        if(lang == "english")
        {
            UpdateAllTextBoxes();
        }
        else if (lang != "english")
        {
            string fullpath = "Languages/" + lang + ".po"; // the file is actually ".txt" in the end

            TextAsset textAsset = (TextAsset)Resources.Load(fullpath);
            if (textAsset == null)
            {
                Debug.Log("[TextManager] " + fullpath + " file not found.");
                return;
            } else
            {
                Debug.Log("[TextManager] loading: " + fullpath);

                if (textTable == null)
                {
                    textTable = new Hashtable();
                }

                textTable.Clear();

                StringReader reader = new StringReader(textAsset.text);
                string key = null;
                string val = null;
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    if (line.StartsWith("msgid \""))
                    {
                        key = line.Substring(7, line.Length - 8).ToUpper();
                    }
                    else if (line.StartsWith("msgstr \""))
                    {
                        val = line.Substring(8, line.Length - 9);
                    }
                    else
                    {
                        if (key != null && val != null)
                        {
                            // TODO: add error handling here in case of duplicate keys
                            textTable.Add(key, val);
                            key = val = null;
                        }
                    }
                }

                reader.Close();
            }
        }
    }

    //This handles selecting the value from the translation array and returning it, the UILocalizeText calls this
    public string GetText(string key)
    {
        string result = "";
        if (key != null && textTable != null)
        {
            if (textTable.ContainsKey(key))
            {
                result = (string)textTable[key];

            } else
            {

            }
        }
        return (string)result;
    }
}

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

public class UILocalizeText : MonoBehaviour {

    //This instances key, as well as the english translation
    [HideInInspector]
    public string TranslationKey = "";

    [HideInInspector]
    public Text TextToTranslate;

    //References to text values
    string OriginalText = "";
    string TranslatedText = "";

    //This gets run automatically if the original text hasn't been set when you go to update it. 
    //You shouldn't need to manually run this from anywhere
    public void Init()
    {
        //Grab the TextToTranslate if we haven't
        if(TextToTranslate == null)
            TextToTranslate = GetComponent<Text>();

        //Grab the original value of the text before we update it
        if(TextToTranslate != null)
            OriginalText = TextToTranslate.text;

        //Set the translation key to the original english text
        if(TranslationKey == "")
            TranslationKey = OriginalText;
    }

    //This gets called from LanguageManager
    //One thing I noticed is that it might be nicer to just pass in the correct string to this rather than go grap it from LanguageManager
    public void UpdateTranslation()
    {
        //If original text is empty, then this object hasn't been initiated so it should do that 
        if (OriginalText == "")
            Init();

        //If the object has no Text object then we shouldn't try to set the text so just stop
        if (TextToTranslate == null) return;

        if(YourGameManager.LanguageManager.CurrentLanguage != "english" && TranslationKey != "")
        {
            string new_text = YourGameManager.LanguageManager.GetText(TranslationKey.ToUpper());

            if (new_text != "")
            {
                TextToTranslate.text = new_text;
            } else
            {
               // Debug.Log("Key " + OriginalText + " doesn't have an entry in this language");
            }
        } else if(YourGameManager.LanguageManager.CurrentLanguage == "english")
        {
            if(TextToTranslate != null && OriginalText != null)
                TextToTranslate.text = OriginalText;
        }

    }

}