Updated Headless Loading

Author: jonobr1

README.md

@@ -63,49 +63,54 @@ And the resulting `/build/two.js` and `/build/two.min.js` will be updated to you
 
 ### Running in Headless Environments
 
-As of version `v0.7.x` Two.js can also run in a headless environment, namely running on the server with the help of a library called [Node Canvas](https://github.com/Automattic/node-canvas). We don't add Node Canvas to dependencies of Two.js because it's _not necessary_ to run it in the browser. However, it has all the hooks setup to run in a cloud environment. To get started follow the installation instructions on Automattic's readme. After you've done that run:
+As of version `v0.7.x` Two.js can also run in a headless environment, namely running on the server with the help of a library called [Node Canvas](https://github.com/Automattic/node-canvas). We don't add Node Canvas to dependencies of Two.js because it's _not necessary_ to run it in the browser. However, it has all the hooks setup to run in a cloud environment. To get started follow the installation instructions on Automattic's [readme](https://github.com/Automattic/node-canvas#installation). After you've done that run:
 
 ```
 npm install canvas
+npm intsall two.js
 ```
 
 Now in a JavaScript file setup your Two.js scenegraph and save out frames whenever you need to:
 
 ```javascript
-var Two = require('../build/two.js'); // Or from npm, `require('two.js');`
-var Canvas = require('canvas');
-var Image = Canvas.Image;
+var { createCanvas, Image } = require('canvas');
+var Two = require('two.js')
+
 var fs = require('fs');
 var path = require('path');
 
 var width = 800;
 var height = 600;
 
-var canvas = Two.Utils.shim(Canvas);
+var canvas = createCanvas(width, height);
+Two.Utils.shim(canvas, Image);
 
 var time = Date.now();
 
 var two = new Two({
-  type: Two.Types.canvas,
-  width: 800,
-  height: 600,
+  width: width,
+  height: height,
   domElement: canvas
 });
 
 var rect = two.makeRectangle(width / 2, height / 2, 50, 50);
 rect.fill = 'rgb(255, 100, 100)';
 rect.noStroke();
 
-two.update();
+two.render();
 
-fs.writeFileSync(path.resolve(__dirname, './images/rectangle.png'), canvas.toBuffer());
+var settings = { compressionLevel: 3, filters: canvas.PNG_FILTER_NONE };
+fs.writeFileSync(path.resolve(__dirname, './images/rectangle.png'), canvas.toBuffer('image/png', settings));
 console.log('Finished rendering. Time took: ', Date.now() - time);
 
 process.exit();
+
 ```
 
 ## Change Log
 <!-- For the latest nightly changes checkout the `dev` branch [here](../../tree/dev). -->
+### November 18, 2018 [v0.7.0-beta.2](https://github.com/jonobr1/two.js/releases/tag/v0.7.0-beta.2)
++ Updated Two.js compatibility with webpack and node-canvas 2.0.0+
 
 #### November 3, 2018 [v0.7.0-beta.1](https://github.com/jonobr1/two.js/releases/tag/v0.7.0-beta.1)
 + Altered `Two.Path.clone` and `Two.Text.clone` to use references where possible and to `_update()` on return

build/two.js

@@ -456,13 +456,13 @@ SOFTWARE.
      * @name Two.Version
      * @property {String} - The current working version of the library.
      */
-    Version: 'v0.7.0-beta.1',
+    Version: 'v0.7.0-beta.2',
 
     /**
      * @name Two.PublishDate
      * @property {String} - The automatically generated publish date in the build process to verify version release candidates.
      */
-    PublishDate: '2018-11-03T10:28:50+01:00',
+    PublishDate: '2018-11-18T10:50:17+01:00',
 
     /**
      * @name Two.Identifier
@@ -580,14 +580,16 @@ SOFTWARE.
       /**
        * @name Two.Utils.shim
        * @function
-       * @param {Canvas} CanvasModule - The `Canvas` object provided by `node-canvas`.
-       * @returns {Canvas} Returns an instanced canvas object from the provided `node-canvas` `Canvas` object.
+       * @param {canvas} canvas - The instanced `Canvas` object provided by `node-canvas`.
+       * @param {Image} [Image] - The prototypical `Image` object provided by `node-canvas`. This is only necessary to pass if you're going to load bitmap imagery.
+       * @returns {canvas} Returns the instanced canvas object you passed from with additional attributes needed for Two.js.
        * @description Convenience method for defining all the dependencies from the npm package `node-canvas`. See [node-canvas]{@link https://github.com/Automattic/node-canvas} for additional information on setting up HTML5 `<canvas />` drawing in a node.js environment.
        */
-      shim: function(CanvasModule) {
-        var canvas = new CanvasModule();
+      shim: function(canvas, Image) {
         Two.CanvasRenderer.Utils.shim(canvas);
-        Two.Utils.Image = CanvasModule.Image;
+        if (!_.isUndefined(Image)) {
+          Two.Utils.Image = Image;
+        }
         Two.Utils.isHeadless = true;
         return canvas;
       },
@@ -11552,6 +11554,14 @@ SOFTWARE.
       return anchor.href;
     },
 
+    loadHeadlessBuffer: new Function('texture', 'loaded', [
+      'var fs = require("fs");',
+      'var buffer = fs.readFileSync(texture.src);',
+
+      'texture.image.src = buffer;',
+      'loaded();'
+    ].join('\n')),
+
     getImage: function(src) {
 
       var absoluteSrc = Texture.getAbsoluteURL(src);
@@ -11634,11 +11644,7 @@ SOFTWARE.
 
         if (Two.Utils.isHeadless) {
 
-          var fs = require('fs');
-          var buffer = fs.readFileSync(texture.src);
-
-          texture.image.src = buffer;
-          loaded();
+          Texture.loadHeadlessBuffer(texture, loaded);
 
         } else {