TheSeamau5

#Exploring Entity Component Systems in Elm

Entity-Component-System (or ECS) is a pattern for designing programs that is prevalent in the games industry. This pattern consists of three simple parts:

• Entity : A uniquely identifiable object that may contain any number of components
• Component : A property usually representing the raw data of one aspect of the object. (Position is a component, Velocity is a component, Strength is a component, etc...)
• System : A continuous process performing actions on every entity that possesses a component of the same aspect as that system

To understand this, let us try to make a simple example: Boxes that move in space:

stuartstevenson

Closure job = {
    // Job Name
    name "${stashProjectKey}-${projectName}-${branchSimpleName}"

    // Where should jenkins run the job
    label ('master')

    // Where should Jenkins get the source code from
    scm {
        git {

mchampine

(ns pwprot
  (:import (java.security MessageDigest Security)))

;;generate n random chars
(defn gensalt [n] 
  (let [charseq (map char (concat
			   (range 48 58)     ; 0-9
			   (range 97 123)))] ; 0-z
    (apply str
	   (take n

rby

object closable {
  type Closable = { def close }
  class Autoclose[A <: Closable](c: A){
    def foreach(f: A => Unit) = {
      try { f(c) }finally { c.close }
    }
  }
  case class Connection(name:String) {
    def close = println("closing " + this) 
  }

kwhinnery

<script>window.location.href='http://s3.amazonaws.com/37assets/svn/461-spinner.html';</script>

retronym

abstract class LogFormatter[-A] {
  def format(a: A): String
}

object LogFormatter {
  implicit object StringLogFormatter extends LogFormatter[String] {
    def format(s: String) = s
  }

  implicit object ExceptionLogFormatter extends LogFormatter[Exception] {