var Incheon = {
    GameEngine: require("./src/GameEngine"),
    ServerEngine: require("./src/ServerEngine"),
    ClientEngine: require("./src/ClientEngine"),
    Synchronizer: require("./src/Synchronizer"),
    GameWorld: require("./src/GameWorld"),
    Point: require("./src/Point"),
    serialize: {
        Serializer: require("./src/serialize/Serializer"),
        Serializable: require("./src/serialize/Serializable"),
        PhysicalObject: require("./src/serialize/PhysicalObject"),
        THREEPhysicalObject: require("./src/serialize/THREEPhysicalObject"),
        DynamicObject: require("./src/serialize/DynamicObject")
    },
    physics: {
        PhysicsEngine: require("./src/physics/PhysicsEngine"),
        SimplePhysicsEngine: require("./src/physics/SimplePhysicsEngine"),
        PhysijsPhysicsEngine: require("./src/physics/PhysijsPhysicsEngine")
    },
    render: {
        Renderer: require("./src/render/Renderer"),
        ThreeRenderer: require("./src/render/ThreeRenderer")
    }
};

module.exports = Incheon;

@@ -784,25 +784,24 @@
 Engine%22)
-,
 %0A       
  Physijs
@@ -788,24 +788,27 @@
 ne%22)%0A       
+ //
  PhysijsPhys

comment out PhysijsPhysicsEngine