////  Created by Eric Levin on 3/25/16//  Copyright 2016 High Fidelity, Inc.//// This spawns a cow which will untip itself////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// // references to our assets.  entity scripts need to be served from somewhere that is publically accessible -- so http(s) or atpvar SCRIPT_URL ="https://content.overte.org/Developer/Tutorials/entity_scripts/cow.js";var MODEL_URL = "https://content.overte.org/Developer/Tutorials/cow/cow.fbx";var ANIMATION_URL = 'https://content.overte.org/Developer/Tutorials/cow/cow.fbx'; // this part of the code describes how to center the entity in front of your avatar when it is created.var orientation = MyAvatar.orientation;orientation = Quat.safeEulerAngles(orientation);orientation.x = 0;orientation = Quat.fromVec3Degrees(orientation);var center = Vec3.sum(MyAvatar.getHeadPosition(), Vec3.multiply(2, Quat.getForward(orientation))); // An entity is described and created by specifying a map of propertiesvar cow = Entities.addEntity({  type: "Model",  modelURL: MODEL_URL,  name: "example_cow",  position: center,  animation: {    currentFrame: 278,    running: true,    url: ANIMATION_URL  },  dimensions: {    x: 0.739,    y: 1.613,    z: 2.529  },  dynamic: true,  gravity: {    x: 0,    y: -5,    z: 0  },  lifetime: 3600,  shapeType: "box",  script: SCRIPT_URL,  grab: { grabbable: true }}); Script.stop();