mikolalysenko

var spawn   = require("child_process").spawn;
var temp    = require("temp");
var fs      = require("fs");
var path    = require("path");
var Stream  = require("stream");

//Eagerly create temporary directory
var directory_built = false
  , directory_err   = null
  , directory_wait  = []

mikolalysenko

Here is a sketch of how one might go about doing skeletal animation in JavaScript, broken down into different npm modules that would need to be written:

• A BVH to JSON converter.
  BVH is a standard format for representing skeletal animation, there is tons of data in the format, and many tools can consume/produce it. So getting things working in this space is priority #1. I think the best way to tackle this problem would be to write a simple module that takes a stream, and produce a JSON object that exactly represents the HIERARCHY and MOTION sections of a BVH file, along with some serialize method that can produce the same output.
• A simple animation viewer. Outside voxel.js, we should probably have a stick figure animation viewer. this could be done in THREE.js using wires to draw each of the joints.
• A motion tweening module Or basically some method to interpolate between per-frame motions. This is necessary to perform

mikolalysenko

var map = getChunkBitmap()
  , boxes = []

for(var z=0; z<CHUNK_Z; ++z) {
  for(var y=0; y<CHUNK_Y; ++y) {
    for(var x=0; x<CHUNK_X; ++x) {
      
      if(map[x,y,z]) {
        var w = 0, h = 0, d = 0
        

mikolalysenko

A list of completely unnecessary software projects (in no particular order)

Considering starting a new node.js module? Great! But here is a suggestion: try to do something useful with your time. If you are trying to work on one of the following projects, I beg you to reconsider and avoid wasting your time on projects that no one will use. Instead, to avoid duplicating effort you should try to make use of a module that already solves whatever problem you are trying to do before going out and making yet another one (only to add to future programmers' confusion and irritation). Here is a short (but by no means exhaustive) list of already solved problems which have hundreds of existing solutions. If you are going to work on one of these problems, I cannot stop you. But please pause to consider this: What will you do that will differentiate your library from the scads of others that have come before you?

Template engines

• underscore
• moustache
• handlebars
• plate

mikolalysenko

var FLOAT_VIEW = new Float32Array(1)
  , INT_VIEW = new Uint32Array(FLOAT_VIEW.buffer)

function rsqrt(number) {
  var threhalfs = 1.5
  var x2        = 0.5 * number
  FLOAT_VIEW[0] = number
  INT_VIEW[0]   = 0x5f3759df - ( INT_VIEW[0] >>> 1 )
  FLOAT_VIEW[0] = FLOAT_VIEW[0] * ( 1.5 - ( x2 * FLOAT_VIEW[0] * FLOAT_VIEW[0] ) )
  FLOAT_VIEW[0] = FLOAT_VIEW[0] * ( 1.5 - ( x2 * FLOAT_VIEW[0] * FLOAT_VIEW[0] ) )

mikolalysenko

//Config variables
var rest_length     = 256.0
var spring_constant = 1.0
var dt              = 0.01

//Hooke's law
function force(displacement) {
  return spring_constant * (rest_length - displacement)
}

mikolalysenko

$ time npm install tap
npm http GET https://registry.npmjs.org/tap
npm http 304 https://registry.npmjs.org/tap
npm http GET https://registry.npmjs.org/difflet
npm http GET https://registry.npmjs.org/deep-equal
npm http GET https://registry.npmjs.org/buffer-equal
npm http GET https://registry.npmjs.org/glob
npm http GET https://registry.npmjs.org/slide
npm http GET https://registry.npmjs.org/runforcover
npm http GET https://registry.npmjs.org/nopt

mikolalysenko

texture.js

Browserify-compatible, streamable webgl 2D texture module.

var texture = require('texture.js')
  , canvas = document.createElement('canvas')
  , gl = canvas.getContext('experimental-webgl')
  , Texture = texture(gl)

mikolalysenko

var ndarray = require("ndarray")
var ops = require("ndarray-ops")

//Given a voxel.js chunk, its y coordinate in blocks and the 4 minecraft chunks it intersects unpack them into the voxel.js component
function unpackMinecraft(y_coord, voxeljs_chunk, mc_chunk00, mc_chunk01, mc_chunk10, mc_chunk_11) {

  var varray = ndarray(voxeljs_chunk, [32,32,32])
  var mc00   = ndarray(mc_chunk00, [16,128,16], [128, 1, 16*128])
  var mc01   = ndarray(mc_chunk01, [16,128,16], [128, 1, 16*128])
  var mc10   = ndarray(mc_chunk10, [16,128,16], [128, 1, 16*128])

mikolalysenko

<!DOCTYPE html>
<html>
  <head>
		<title>HTML5/JS Poject1</title>
		<link rel="stylesheet" type="text/css" href="stylesheet.css" />
		<script src="http://code.jquery.com/jquery-2.0.2.min.js"></script>	<!-- needed to run jQuery stuff -->
		<script src="script.js" type="text/javascript"></script>
	</head>
	<body>
		<div id='unit'></div>