fixed require for external libraries, closes #629, closes #559, closes #593, closes #365, closes #629

Gulpfile.js

@@ -111,13 +111,16 @@ gulp.task('watch', function() {
     var b = browserify({
         entries: ['src/module/main.js'],
         standalone: 'Matter',
-        plugin: [watchify],
-        transform: ['browserify-shim']
+        plugin: [watchify]
     });
 
     var bundle = function() {
         gutil.log('Updated bundle build/matter-dev.js');
         b.bundle()
+            .on('error', function(err) {
+                gutil.log('ERROR', err.message);
+                this.emit('end');
+            })
             .pipe(through2({ objectMode: true }, function(chunk, encoding, callback) {
                 return callback(
                     null, 

package.json

@@ -21,7 +21,6 @@
   ],
   "devDependencies": {
     "browserify": "^14.0.0",
-    "browserify-shim": "^3.8.13",
     "cheerio": "^0.22.0",
     "connect-livereload": "^0.6.0",
     "event-stream": "^3.3.2",
@@ -59,8 +58,5 @@
     "src",
     "build",
     "CHANGELOG.md"
-  ],
-  "browserify-shim": {
-    "poly-decomp": "global:decomp"
-  }
+  ]
 }

src/core/Common.js

@@ -536,4 +536,18 @@ module.exports = Common;
         ));
     };
 
+    /**
+     * Used to require external libraries outside of the bundle.
+     * It first looks for the `globalName` on the environment's global namespace.
+     * If the global is not found, it will fall back to using the standard `require` using the `moduleName`.
+     * @private
+     * @method _requireGlobal
+     * @param {string} globalName The global module name
+     * @param {string} moduleName The fallback CommonJS module name
+     * @return {} The loaded module
+     */
+    Common._requireGlobal = function(globalName, moduleName) {
+        var obj = (typeof window !== 'undefined' ? window[globalName] : typeof global !== 'undefined' ? global[globalName] : null);
+        return obj || require(moduleName);
+    };
 })();

src/factory/Bodies.js

@@ -18,7 +18,7 @@ var Common = require('../core/Common');
 var Body = require('../body/Body');
 var Bounds = require('../geometry/Bounds');
 var Vector = require('../geometry/Vector');
-var decomp = require('poly-decomp');
+var decomp;
 
 (function() {
 
@@ -197,6 +197,10 @@ var decomp = require('poly-decomp');
      * @return {body}
      */
     Bodies.fromVertices = function(x, y, vertexSets, options, flagInternal, removeCollinear, minimumArea) {
+        if (!decomp) {
+            decomp = Common._requireGlobal('decomp', 'poly-decomp');
+        }
+
         var body,
             parts,
             isConvex,