//
// groupVehicle.js
// examples
//
//  Created by Eric Levin on April 9, 2015
//  Copyright 2015 High Fidelity, Inc.
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//

Script.include("https://hifi-public.s3.amazonaws.com/eric/scripts/displayMessage.js");
Script.include("https://hifi-public.s3.amazonaws.com/eric/scripts/tween.js");
var isAssignmentScript = false;
var startingPosition;

//************************************************************************************************
//If you are running this as an assignment script, set the starting spawn point for the vehicle here
//Otherwise, leave this commented out and the vehicle will spawn in front of your avatar
// isAssignmentScript = true;
// startingPosition = {
//   x: 8000,
//   y: 8000,
//   z: 8000
// //************************************************************************************************
// };
if (!isAssignmentScript) {
  startingPosition = MyAvatar.position;
  MyAvatar.orientation = Quat.fromPitchYawRollDegrees(0, -90, 0);
  new Message({
    description: "Click on the ship to take a ride! \n Invite your friends to hop on as well!",
    displayTime: 5000
  });
}

var shipModelURL = "https://hifi-public.s3.amazonaws.com/ryan/lobby_platform4.fbx";
var seatManagerScriptURL = "https://hifi-public.s3.amazonaws.com/eric/scripts/seatManager.js?v3";
var shipSound = SoundCache.getSound("https://hifi-public.s3.amazonaws.com/eric/sounds/spaceship.wav");

var shipDimensions = {
  x: 10.8,
  y: 4.04,
  z: 10.8
};

var waypoints = [];
var numPoints = 5;
var currentWaypointIndex = 0;
var ship;
var radius = 50;

//Modify these variables to change the pace of your vehicle tour
var pointToPointTime = 5000;
var waitTimeBetweenLoops = 20000;
var waitTimeBetweenStops = 5000;

function init() {

  createWaypoints();
  ship = Entities.addEntity({
    type: "Model",
    modelURL: shipModelURL,
    position: waypoints[0],
    dimensions: shipDimensions,
    script: seatManagerScriptURL
  });
  currentWaypointIndex++;

  Script.setTimeout(function() {
    followWaypoints();
  }, waitTimeBetweenLoops);

}

function createWaypoints() {
  for (var i = 0; i < numPoints; i++) {
    var theta = (i / numPoints) * (Math.PI * 2);
    var xPos = startingPosition.x + radius * Math.cos(theta);
    var zPos = startingPosition.z + radius * Math.sin(theta);
    waypoints.push({
      x: xPos,
      y: startingPosition.y,
      z: zPos
    });

  }
}

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(TWEEN.Easing.Cubic.InOut).
    onUpdate(function() {
      Entities.editEntity(ship, {
        position: {
          x: currentProps.x,
          y: currentProps.y,
          z: currentProps.z
        }
      });
    }).start();
  Audio.playSound(shipSound, {
    position: startingPosition
  });

  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);
    }
  });
}

function update() {
  TWEEN.update();
}

Script.setTimeout(function() {
  init();
}, 500);

Script.update.connect(update);
Script.scriptEnding.connect(destroy);

function destroy() {
  Entities.deleteEntity(ship);
}