(function(window) { function PhysicistView(modelObject){ this.graphics.beginFill("red").drawCircle(0, 0, 20); this.model = modelObject; } PhysicistView.prototype = new createjs.Shape(); PhysicistView.prototype.update = function(){ this.x = this.model.position.x; this.y = this.model.position.y; } window.PhysicistView = PhysicistView; }(window));