CreateJS boilerplate

createJS start file

function init() {
  hover = false;
  angle = 0;
  canvas = document.getElementById("mainStage");
  stage = new createjs.Stage(canvas);
  createjs.Ticker.setFPS(30);
  createjs.Ticker.addEventListener("tick", tick);
  stage.enableMouseOver(10);
  planet1.addEventListener("mouseover", manageMouseOver);
  planet1.addEventListener("mouseout", manageMouseOut);
}

function tick(event) {
  stage.update(event);
}