Localize tutorial

[sdthompson1]

Currently the tutorial has a bunch of hard-coded English language messages in the file messages.lua. These should ideally be localized.

One possible approach:

• Change kts.PopUpWindow: instead of having title and body we would have title_key and body_key which refer to localization key names.
  • requires changes to PopUpWindow in lua_ingame.cpp and related code.
  • also update the Lua API documentation page.
• A lot of the tutorial messages use "\n" for newline, so we would need to add support for that to the localization_*.txt files (see code in localization.cpp).
• Update tutorial/messages.lua accordingly (existing messages will become localization keys).
• Create tutorial/localization_english.txt, containing the new localization keys, and corresponding messages.
• (Optionally) provide translations in other languages as well.

[impassive-nik]

This is not exactly a localization issue, but it feels really odd to see hardcoded keys in tutorial hits, especially if you use non-default controls (which is my case), since the game tells you to press some button, but this action does nothing and you have to guess the right key yourself.

I've seen the same problem in Tekken 7 and many games ported from consoles to PC: the game tells you to press "A", "X", "RT" or something like this, but if you don't have a gamepad, so you have no idea how to navigate the menu, until you figure it out by yourself by pressing all the buttons on the keyboard.

It would be really nice to have alternative hints for classic Amiga controls ;)

[sdthompson1]

The tutorial messages dynamically adapt themselves to the keys chosen, so if the user changes the key bindings it shouldn't be an issue.

However, if the user changes to classic Amiga controls, they won't get a very good tutorial experience. I created #37 to document this issue.

[impassive-nik]

The tutorial messages dynamically adapt themselves to the keys chosen, so if the user changes the key bindings it shouldn't be an issue.

Ah, it seems to be misunderstanding on my part. My apologies :)