lighttroupe/luz

class ActorEffectGridOffset < ActorEffect
    title                "Grid Offset"
    description "Draws actor many times in a grid pattern, out from the center, with odd columns offset by 0.5."

    category :child_producer

    setting 'offset_x', :float, :range => -100.0..100.0, :default => 1.0..2.0
    setting 'offset_y', :float, :range => -100.0..100.0, :default => 1.0..2.0
    setting 'number_x', :integer, :range => 0..100, :default => 0..2
    setting 'number_y', :integer, :range => 0..100, :default => 0..2

    def render
        total_children = [number_x.abs + 1, number_y.abs + 1].max

        for y in (-number_y..number_y)
            for x in (-number_x..number_x)
                next if (x.odd? and y == number_y)

                with_translation((x * offset_x), (y * offset_y) + (x.odd? ? 0.5 : 0.0)) {
                    yield :child_index => [x.abs, y.abs].max, :total_children => total_children
                }
            end
        end
    end
end