var cytoscape = require('cytoscape');
var matterjs = require('cytoscape-matterjs');

matterjs( cytoscape ); // register extension

require(['cytoscape', 'cytoscape-matterjs'], function( cytoscape, matterjs ){
  matterjs( cytoscape ); // register extension
});

cy.matterjs({
  refreshInterval: 16, // in ms
  refreshIterations: 10, // iterations until thread sends an update
  fit: true,
  gravity: -10, // the force each node applies to others
  globalAirFriction: 0.25, // set the air friction for the simulation
  clusters: [], // specifies groups of nodes that will be attracted to an average point between them
  mass: [], // maps a node id to a mass value for use in the simulation with a {id: 'IDENTIFICATION', mass: 15}. If a mass is not specified for a particular node the layout assigns it a mass of 10
  tickTimeout: 2000, // the number of ticks before the simulation times out
  updateOn: 1, // the number of ticks that pass before a graphical update. The default is 1, and so the graphics update every tick
  depthRestrict: true,
});

cy.elements().test({
  foo: 'bar', // some option that does this
  baz: 'bat' // some options that does that
  // ... and so on
});