text: const guiControls = new (function () {
  	this.animationSpeed = 1;
  	this.drawOrbit = true;
  	this.orbitStroke = 125;
  	this.gridStroke = 25;
  	this.drawTrajectory = false;
  	this.enableLighting = true;
  })();
  
  function guiSetup() {
  	let gui = new dat.GUI();
  	gui.add(guiControls, "animationSpeed", 0, 10);
  	gui.add(guiControls, "drawOrbit");
  	gui.add(guiControls, "orbitStroke", 0, 255);
  	gui.add(guiControls, "gridStroke", 0, 255);
  	gui.add(guiControls, "drawTrajectory");
  	gui.add(guiControls, "enableLighting");
  }
  