lighttroupe/luz

class ActorEffectThemeStyleVoyage < ActorEffect
    title                "Theme Voyage"
    description "Fades gradually between the styles of chosen theme."

    categories :color

    setting 'theme', :theme
    setting 'progress', :float, :default => 0.0..1.0

    def render
        return yield unless theme

        count = theme.effects.size        # TODO: clean this up
        return yield if count == 0

        # spot between 0.0 and eg. 7.0 for 7 actors
        spot = (count) * progress

        # the first actor
        index = spot.floor

        fade_amount = spot - index

        theme.using_style(index) {
            theme.using_style_amount((index+1) % count, fade_amount) {
                yield
            }
        }
    end
end