move require statements below module export

src/body/Body.js

@@ -1,11 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Vector = require('../geometry/Vector');
-var Sleeping = require('../core/Sleeping');
-var Render = require('../render/Render');
-var Common = require('../core/Common');
-var Bounds = require('../geometry/Bounds');
-var Axes = require('../geometry/Axes');
-
 /**
 * The `Matter.Body` module contains methods for creating and manipulating body models.
 * A `Matter.Body` is a rigid body that can be simulated by a `Matter.Engine`.
@@ -21,6 +13,14 @@ var Body = {};
 
 module.exports = Body;
 
+var Vertices = require('../geometry/Vertices');
+var Vector = require('../geometry/Vector');
+var Sleeping = require('../core/Sleeping');
+var Render = require('../render/Render');
+var Common = require('../core/Common');
+var Bounds = require('../geometry/Bounds');
+var Axes = require('../geometry/Axes');
+
 (function() {
 
     Body._inertiaScale = 4;

src/body/Composite.js

@@ -1,7 +1,3 @@
-var Events = require('../core/Events');
-var Common = require('../core/Common');
-var Body = require('./Body');
-
 /**
 * The `Matter.Composite` module contains methods for creating and manipulating composite bodies.
 * A composite body is a collection of `Matter.Body`, `Matter.Constraint` and other `Matter.Composite`, therefore composites form a tree structure.
@@ -18,6 +14,10 @@ var Composite = {};
 
 module.exports = Composite;
 
+var Events = require('../core/Events');
+var Common = require('../core/Common');
+var Body = require('./Body');
+
 (function() {
 
     /**

src/body/World.js

@@ -1,7 +1,3 @@
-var Composite = require('./Composite');
-var Constraint = require('../constraint/Constraint');
-var Common = require('../core/Common');
-
 /**
 * The `Matter.World` module contains methods for creating and manipulating the world composite.
 * A `Matter.World` is a `Matter.Composite` body, which is a collection of `Matter.Body`, `Matter.Constraint` and other `Matter.Composite`.
@@ -20,6 +16,10 @@ var World = {};
 
 module.exports = World;
 
+var Composite = require('./Composite');
+var Constraint = require('../constraint/Constraint');
+var Common = require('../core/Common');
+
 (function() {
 
     /**

src/collision/Detector.js

@@ -1,7 +1,3 @@
-var SAT = require('./SAT');
-var Pair = require('./Pair');
-var Bounds = require('../geometry/Bounds');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -14,6 +10,10 @@ var Detector = {};
 
 module.exports = Detector;
 
+var SAT = require('./SAT');
+var Pair = require('./Pair');
+var Bounds = require('../geometry/Bounds');
+
 (function() {
 
     /**

src/collision/Grid.js

@@ -1,7 +1,3 @@
-var Pair = require('./Pair');
-var Detector = require('./Detector');
-var Common = require('../core/Common');
-
 /**
 * See [Demo.js](https://github.com/liabru/matter-js/blob/master/demo/js/Demo.js) 
 * and [DemoMobile.js](https://github.com/liabru/matter-js/blob/master/demo/js/DemoMobile.js) for usage examples.
@@ -13,6 +9,10 @@ var Grid = {};
 
 module.exports = Grid;
 
+var Pair = require('./Pair');
+var Detector = require('./Detector');
+var Common = require('../core/Common');
+
 (function() {
 
     /**

src/collision/Pair.js

@@ -1,5 +1,3 @@
-var Contact = require('./Contact');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -10,6 +8,8 @@ var Pair = {};
 
 module.exports = Pair;
 
+var Contact = require('./Contact');
+
 (function() {
 
     /**

src/collision/Pairs.js

@@ -1,6 +1,3 @@
-var Pair = require('./Pair');
-var Common = require('../core/Common');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -11,6 +8,9 @@ var Pairs = {};
 
 module.exports = Pairs;
 
+var Pair = require('./Pair');
+var Common = require('../core/Common');
+
 (function() {
 
     var _pairMaxIdleLife = 1000;

src/collision/Query.js

@@ -1,9 +1,3 @@
-var Vector = require('../geometry/Vector');
-var SAT = require('./SAT');
-var Bounds = require('../geometry/Bounds');
-var Bodies = require('../factory/Bodies');
-var Vertices = require('../geometry/Vertices');
-
 /**
 * The `Matter.Query` module contains methods for performing collision queries.
 *
@@ -14,6 +8,12 @@ var Query = {};
 
 module.exports = Query;
 
+var Vector = require('../geometry/Vector');
+var SAT = require('./SAT');
+var Bounds = require('../geometry/Bounds');
+var Bodies = require('../factory/Bodies');
+var Vertices = require('../geometry/Vertices');
+
 (function() {
 
     /**

src/collision/Resolver.js

@@ -1,8 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Vector = require('../geometry/Vector');
-var Common = require('../core/Common');
-var Bounds = require('../geometry/Bounds');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -13,6 +8,11 @@ var Resolver = {};
 
 module.exports = Resolver;
 
+var Vertices = require('../geometry/Vertices');
+var Vector = require('../geometry/Vector');
+var Common = require('../core/Common');
+var Bounds = require('../geometry/Bounds');
+
 (function() {
 
     Resolver._restingThresh = 4;

src/collision/SAT.js

@@ -1,6 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Vector = require('../geometry/Vector');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -13,6 +10,9 @@ var SAT = {};
 
 module.exports = SAT;
 
+var Vertices = require('../geometry/Vertices');
+var Vector = require('../geometry/Vector');
+
 (function() {
 
     /**

src/constraint/Constraint.js

@@ -1,10 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Vector = require('../geometry/Vector');
-var Sleeping = require('../core/Sleeping');
-var Bounds = require('../geometry/Bounds');
-var Axes = require('../geometry/Axes');
-var Common = require('../core/Common');
-
 /**
 * The `Matter.Constraint` module contains methods for creating and manipulating constraints.
 * Constraints are used for specifying that a fixed distance must be maintained between two bodies (or a body and a fixed world-space position).
@@ -28,6 +21,13 @@ var Constraint = {};
 
 module.exports = Constraint;
 
+var Vertices = require('../geometry/Vertices');
+var Vector = require('../geometry/Vector');
+var Sleeping = require('../core/Sleeping');
+var Bounds = require('../geometry/Bounds');
+var Axes = require('../geometry/Axes');
+var Common = require('../core/Common');
+
 (function() {
 
     var _minLength = 0.000001,

src/constraint/MouseConstraint.js

@@ -1,13 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Sleeping = require('../core/Sleeping');
-var Mouse = require('../core/Mouse');
-var Events = require('../core/Events');
-var Detector = require('../collision/Detector');
-var Constraint = require('./Constraint');
-var Composite = require('../body/Composite');
-var Common = require('../core/Common');
-var Bounds = require('../geometry/Bounds');
-
 /**
 * The `Matter.MouseConstraint` module contains methods for creating mouse constraints.
 * Mouse constraints are used for allowing user interaction, providing the ability to move bodies via the mouse or touch.
@@ -22,6 +12,16 @@ var MouseConstraint = {};
 
 module.exports = MouseConstraint;
 
+var Vertices = require('../geometry/Vertices');
+var Sleeping = require('../core/Sleeping');
+var Mouse = require('../core/Mouse');
+var Events = require('../core/Events');
+var Detector = require('../collision/Detector');
+var Constraint = require('./Constraint');
+var Composite = require('../body/Composite');
+var Common = require('../core/Common');
+var Bounds = require('../geometry/Bounds');
+
 (function() {
 
     /**

src/core/Engine.js

@@ -1,16 +1,3 @@
-var World = require('../body/World');
-var Sleeping = require('./Sleeping');
-var Resolver = require('../collision/Resolver');
-var Render = require('../render/Render');
-var Pairs = require('../collision/Pairs');
-var Metrics = require('./Metrics');
-var Grid = require('../collision/Grid');
-var Events = require('./Events');
-var Composite = require('../body/Composite');
-var Constraint = require('../constraint/Constraint');
-var Common = require('./Common');
-var Body = require('../body/Body');
-
 /**
 * The `Matter.Engine` module contains methods for creating and manipulating engines.
 * An engine is a controller that manages updating the simulation of the world.
@@ -26,6 +13,19 @@ var Engine = {};
 
 module.exports = Engine;
 
+var World = require('../body/World');
+var Sleeping = require('./Sleeping');
+var Resolver = require('../collision/Resolver');
+var Render = require('../render/Render');
+var Pairs = require('../collision/Pairs');
+var Metrics = require('./Metrics');
+var Grid = require('../collision/Grid');
+var Events = require('./Events');
+var Composite = require('../body/Composite');
+var Constraint = require('../constraint/Constraint');
+var Common = require('./Common');
+var Body = require('../body/Body');
+
 (function() {
 
     /**

src/core/Events.js

@@ -1,5 +1,3 @@
-var Common = require('./Common');
-
 /**
 * See [Demo.js](https://github.com/liabru/matter-js/blob/master/demo/js/Demo.js) 
 * and [DemoMobile.js](https://github.com/liabru/matter-js/blob/master/demo/js/DemoMobile.js) for usage examples.
@@ -11,6 +9,8 @@ var Events = {};
 
 module.exports = Events;
 
+var Common = require('./Common');
+
 (function() {
 
     /**

src/core/Metrics.js

@@ -1,7 +1,4 @@
 // @if DEBUG
-var Composite = require('../body/Composite');
-var Common = require('./Common');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -11,6 +8,9 @@ var Metrics = {};
 
 module.exports = Metrics;
 
+var Composite = require('../body/Composite');
+var Common = require('./Common');
+
 (function() {
 
     /**

src/core/Mouse.js

@@ -1,5 +1,3 @@
-var Common = require('../core/Common');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -10,6 +8,8 @@ var Mouse = {};
 
 module.exports = Mouse;
 
+var Common = require('../core/Common');
+
 (function() {
 
     /**

src/core/Runner.js

@@ -1,7 +1,3 @@
-var Events = require('./Events');
-var Engine = require('./Engine');
-var Common = require('./Common');
-
 /**
 * The `Matter.Runner` module is an optional utility which provides a game loop, 
 * that handles updating and rendering a `Matter.Engine` for you within a browser.
@@ -20,6 +16,10 @@ var Runner = {};
 
 module.exports = Runner;
 
+var Events = require('./Events');
+var Engine = require('./Engine');
+var Common = require('./Common');
+
 (function() {
 
     if (typeof window === 'undefined') {

src/core/Sleeping.js

@@ -1,5 +1,3 @@
-var Events = require('./Events');
-
 /**
 * _Internal Class_, not generally used outside of the engine's internals.
 *
@@ -10,6 +8,8 @@ var Sleeping = {};
 
 module.exports = Sleeping;
 
+var Events = require('./Events');
+
 (function() {
 
     Sleeping._motionWakeThreshold = 0.18;

src/factory/Bodies.js

@@ -1,9 +1,3 @@
-var Vertices = require('../geometry/Vertices');
-var Common = require('../core/Common');
-var Body = require('../body/Body');
-var Bounds = require('../geometry/Bounds');
-var Vector = require('../geometry/Vector');
-
 /**
 * The `Matter.Bodies` module contains factory methods for creating rigid body models 
 * with commonly used body configurations (such as rectangles, circles and other polygons).
@@ -20,6 +14,12 @@ var Bodies = {};
 
 module.exports = Bodies;
 
+var Vertices = require('../geometry/Vertices');
+var Common = require('../core/Common');
+var Body = require('../body/Body');
+var Bounds = require('../geometry/Bounds');
+var Vector = require('../geometry/Vector');
+
 (function() {
 
     /**