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peted70/using-subject.cpp

Created June 4, 2018 11:37
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using-subject.cpp
// I can declare a variable like this
subject<SceneManager const&> SceneChanged;
// subscribe for changes using an arbitrary function signature
sub_token RegisterForUpdates(function<void(SceneManager const&)> slot)
{
return SceneChanged.subscribe(slot);
}
// Then when changes happen, notify observers like this..
SceneChanged.notify(*this);
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