board.clj

(defn transition-handler
  "This handler takes messages off the transition subscription channel and
  uses that information to transition the grid after dots are removed."
  [channel owner]
  (go-loop []
    (let [msg (<! channel)
          dot-row (:dot-row msg)
          dot-col (:dot-column msg)
          cur (columns-state-cur)]
      (. js/console log @cur))
    (recur)))