How does technology_to_unlock work for Prototype/Shortcut?

[Pi-C]

I've defined this prototype:

Code: Select all

  {
    type = "shortcut",
    name = "GCKI_car-key",
    action = "lua",
    icon = {
      filename = GCKI.modRoot.."/graphics/"..icon,
      size = 64,
      mipmap_count = 1,
    },
    technology_to_unlock = "automobilism",
  },

I expected that the shortcut would not be visible until "automobilism" was researched. But when I started a new game without cheats, the shortcut was visible right from the beginning.

In control.lua, there is this:

Code: Select all

script.on_event(defines.events.on_lua_shortcut, function(event)
 log("on_lua_shortcut("..serpent.line(event)..")")
end)

The log file shows that the shortcut is not only visible, but also active. So, where is my mistake?

[ickputzdirwech]

Rather unexpectedly technology_to_unlock means the shortcut will be available if you researched that technology already in any game. It is used by the base game for the blueprint shortcuts that are supposed to be only available later in the game for new players, but right from the start for experienced players.

To achieve your goal you need enable the shortcut in control.lua on_research_finished with set_shortcut_available

[Pi-C]

Rather unexpectedly technology_to_unlock means the shortcut will be available if you researched that technology already in any game.

Oh, I see! That's really unexpected, it definitely should be documented.

To achieve your goal you need enable the shortcut in control.lua on_research_finished with set_shortcut_available

Thanks, I've added this (as well as disabling the shortcut in response to on_research_reversed). It seems to work now.