Move Node.js specific things to dedicated folder.

node.js/index.js

@@ -0,0 +1,54 @@
+var fs = require('fs'),
+	vm = require('vm'),
+	path = require('path');
+
+__dirname = path.resolve(__dirname, '../src/');
+
+// Create the context within which we will run the source files:
+var context = vm.createContext({
+	options: {
+		server: true,
+		version: 'dev'
+	},
+	// Node Canvas library: https://github.com/learnboost/node-canvas
+	Canvas: require('canvas'),
+	// Copy over global variables:
+    console: console,
+	require: require,
+	__dirname: __dirname,
+	__filename: __filename,
+	// Used to load and run source files within the same context:
+	include: function(uri) {
+		var source = fs.readFileSync(path.resolve(__dirname, uri), 'utf8');
+		// For relative includes, we save the current directory and then
+		// add the uri directory to __dirname:
+		var oldDirname = __dirname;
+		__dirname = path.resolve(__dirname, path.dirname(uri));
+		vm.runInContext(source, context, uri);
+		__dirname = oldDirname;
+	}
+});
+
+// Load Paper.js library files:
+context.include('paper.js');
+
+context.Base.each(context, function(val, key) {
+	if (val && val.prototype instanceof context.Base) {
+		val._name = key;
+		// Export all classes through PaperScope:
+		context.PaperScope.prototype[key] = val;
+	}
+});
+context.PaperScope.prototype['Canvas'] = context.Canvas;
+
+require.extensions['.pjs'] = function(module, uri) {
+	var source = context.PaperScript.compile(fs.readFileSync(uri, 'utf8'));
+	var envVars = 'var __dirname = \'' + path.dirname(uri) + '\';' + 
+				 'var __filename = \'' + uri + '\';';
+	vm.runInContext(envVars, context);
+	var scope = new context.PaperScope();
+	context.PaperScript.evaluate(source, scope);
+	module.exports = scope;
+};
+
+module.exports = new context.PaperScope();