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function Vector (x,y) {
    this.x = x;
    this.y = y;
}

Vector.prototype.length = function() {
    return Math.sqrt(this.x*this.x + this.y*this.y);
};

Vector.prototype.add = function(vector) {

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function Color (red,green,blue,alpha) {
    this.red = red;
    this.blue = blue;
    this.green = green;
    this.alpha = (alpha || 1);
}

Color.prototype.toString = function() {
    return "rgba("+Math.floor(this.red) +
        "," + Math.floor(this.green) +

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function Pool (size, entity, params) {
    "use strict";

    this.item = [];
    this.dead = [];
    var that = this;
    this.forceIndex = 0;

    for (var i = size - 1; i >= 0; i--) {
        var newItem = new entity(params);

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Using canvas, you can change the color of an image !

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(function() {
    "use strict";

    //Mon Code

    /*********************************************************\
        MULTI EXPORT
    \*********************************************************/
    
    if (typeof exports === 'object') {

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var express = require('express');

var app = express();

app.use("/",express.static(__dirname + '/'));

app.listen(8080);

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(function() {
    "use strict";

    var addEventCapabilities = function (object) {
        object = object || {};

        object.listenersFor = {};
        object.listenersCount = 0;
        object.specialEmiter = {};

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(function() {
	"use strict";
	var characters = "abcdefghijklmnopqrstuvwxyz?!.:,-<>";
	var numbers = "0123456789"
	var sizeChar = 128;
	var kerningDefault = {
		"a": 25,
		"b": 25,
		"c": 25,
		"d": 24,

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function callbackToPromise(callback) {
  return function() {
    var arg = arguments
    return new Promise(function(succed, reject) {
      arg.push(function(err, result) {
        if (err) return reject(err);//Si il y a eu une erreure, on rejete la promesse.
        if(arguments.length>2) { //Si il y a plus de 2 valeur retourné au callback, on renvoie un array.
          result = arguments.splice(0,1);
        }
        succed(result);

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function getVideoStream(succes, reject) {
    navigator.getMedia = (navigator.getUserMedia || navigator.webkitGetUserMedia ||
    navigator.mozGetUserMedia || navigator.msGetUserMedia);
    if (navigator.getMedia) {
        navigator.getMedia({video: true, audio: true}, function(stream) {
            var video = document.createElement("video");
            video.src = window.URL.createObjectURL(stream);
            video.autoplay = true;
            succes(video);