jszmajda

Model: Cell {x, y, alive} View: CellView {model: Cell} Collection: Cells

---

CellView renders a div CellView listens to Cell.change to change b.g. color

On app init:

jszmajda

var stepTime = 1;
var col = undefined;

var Cell = Backbone.Model.extend({
  x: -1,
  y: -1,
  alive: false,
  nextAlive: false,

  initialize: function() {

jszmajda

Conway's Game of Life in Erlang, in 2 hours, with 0 Erlang experience, in 20 lines of code.

1337 h4x0rs:

• @jszmajda
• @ngauthier
• @ericoestrich
• @danivovich
• @kafuchau

jszmajda

Overview

This is a rough spec for a gem I would like to use to connect to X.commerce. As X.commerce is new and my experience with it is limited, I'd like to discuss with the community first how best to structure the interaction before actual code is written.

Structure

I've spec'd out the following basic object structure:

jszmajda

def points(x)
  {
    1 => 1,
    2 => 2,
    3 => 5,
    4 => 7,
    6 => 15,
    8 => 21
  }[x.to_i]
end

jszmajda

require 'pivotal-tracker'
module PivotalTracker
  class Project
    def create_stories(options={})
      req = options[:requester]
      own = options[:owner]
      stories = options[:stories]

      stories.split(/\n/).each do |story|
        md = story.strip.match(/^([fcb])(\d) (.*?) \[(.*)\]$/)

jszmajda

require 'pivotal-tracker'
module PivotalTracker
  class Project
    def create_stories(options={})
      req = options[:requester]
      own = options[:owner]
      stories = options[:stories]

      stories.split(/\n/).each do |story|
        md = story.strip.match(/^([fcb])(\d) (.*?) \[(.*)\]$/)

jszmajda

describe World do
  it "should return no cell on a new board" do
    w = World.new
    w.cell_at(2,2).should be_nil
  end 
  it "should allow cell creation" do
    w = World.new
    w.make_cell(2,2)
    w.cell_at(2,2).should be_kind_of(Cell)
  end 

jszmajda

def index
  if params[:client_id].present? && params[:listing_group_id].present?
    @deltas = some lookup...
    respond_with @deltas, ajax: { partial: render_to_string(partial: 'histories', locals: {deltas: @deltas}) }
  else
    data_table_request(catalog_item_deltas_table) # or whatever
  end
end

jszmajda

data Aliveness = Alive | Dead deriving (Show, Eq)

survives :: Aliveness -> Int -> Aliveness
survives _     3 = Alive
survives Alive 2 = Alive
survives _     _ = Dead

data Point = Point { px :: Int, py :: Int } deriving (Show, Eq)
data Cell = Cell { pt :: Point } deriving (Show, Eq)
data Grid = Grid { cells :: [Cell] } deriving (Show)