@startuml titlescreen onScreenChange event
!theme materia-outline
skinparam DefaultFontName Courier
skinparam Shadowing false

participant usc
participant "titlescreen.lua" as main
collections screens
collections pages

activate main
activate screens
activate pages

hnote across
Screen loaded and page displayed
endhnote

pages -> screens : change screen event\n(eg. goes out of scope)
deactivate pages
screens --> main : onDeactivation(obj)
deactivate screens

main -> main : handle replacing screen\nby inspecting `obj`

main -> screens : call current screen's init()
activate screens

screens -> usc : set current screen as last screen value

screens -> pages : init()

activate pages

@enduml