module Examples.Hello (main, Point, Tree(..)) where

import Html exposing (Html, span, text)
import Html.Attributes exposing (..)
import Time

main : Html
main =
  span [class "welcome-message"] [text "Hello, World!"]

type alias Point = { x : Int, y : Int }

type Tree a = Leaf a | Node (Tree a) a (Tree a)

flatten : Tree a -> List a
flatten t =
  case t of
    Leaf a -> [a]
    Node l a r -> flatten l ++ a :: flatten r

-- outgoing values
port time : Signal Float
port time = Time.every 1000