followWaypoints.js

function followWaypoints() {
  startingPosition = Entities.getEntityProperties(ship).position;
  var currentProps = {
    x: startingPosition.x,
    y: startingPosition.y,
    z: startingPosition.z,
  }
  var endProps = {
    x: waypoints[
    currentWaypointIndex].x,
    y: waypoints[currentWaypointIndex].y,
    z: waypoints[currentWaypointIndex].z,
  }


  var moveTween = new TWEEN.Tween(currentProps).
    to(endProps, pointToPointTime).
    easing(easingFunc).
    onUpdate(function() {
      Entities.editEntity(ship, {
        position: {
          x: currentProps.x,
          y: currentProps.y,
          z: currentProps.z
        }
      });
    }).start();

  moveTween.onComplete(function() {
    currentWaypointIndex++;
    if (currentWaypointIndex === waypoints.length) {
      currentWaypointIndex = 0;
      //If we've finished loop, then wait specified time to start over again
      Script.setTimeout(function() {
        followWaypoints();
      }, waitTimeBetweenLoops)
    } else {
      Script.setTimeout(function() {
        followWaypoints();
      }, waitTimeBetweenStops)
    }
  });
}