db.actor:get_actor_ui_luminosity() returns correct luminosity only when minimap is enabled on hud

[VodoXleb]

If minimap is disabled, value returned by db.actor:get_actor_ui_luminosity() doesn't change

[themrdemonized]

Makes sense, there is no reason to update ui when its not shown. Sad that its used as a source of truth for visibility though. I'll think about it