notes.rb

class Note
  def self.add(player_id, x, y)
    key = "note_#{SecureRandom.hex}"
    REDIS.set(key, {
      x: x, y: y, player_id: player_id
    }.to_json)
    REDIS.expire(key, 5)
    broadcast_note(player_id, x, y)
    REDIS.incr("count_notes")
  end

  private

  def self.broadcast_note(player_id, x, y)
    puts "Broadcasting note by #{player_id}"
    ActionCable.server.broadcast(
      "game", {
        type: "note",
        player_id: player_id,
        x: x, y: y
      }
    )
  end
end