////  multitouchExample.js//  examples////  Created by Brad Hefta-Gaub on 2/9/14.//  Copyright 2014 High Fidelity, Inc.////  This is an example script that demonstrates use of the Controller class's multi-touch features////  When this script is running://     * Four finger rotate gesture will rotate your avatar.//     * Three finger swipe up/down will adjust the pitch of your avatars head.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// var lastX = 0;var lastY = 0;var lastAngle = 0;var yawFromMultiTouch = 0;var pitchFromMultiTouch = 0;var wantDebugging = false;var ROTATE_YAW_SCALE = 0.15;var MOUSE_PITCH_SCALE = -12.5;var FIXED_MOUSE_TIMESTEP = 0.016; var ROTATE_TOUCH_POINTS = 4;var PITCH_TOUCH_POINTS = 3;  function printTouchEvent(eventName, event) {    print(eventName);    print("    event.x,y=" + event.x + ", " + event.y);    print("    event.isPressed=" + event.isPressed);    print("    event.isMoved=" + event.isMoved);    print("    event.isStationary=" + event.isStationary);    print("    event.isReleased=" + event.isReleased);    print("    event.isShifted=" + event.isShifted);    print("    event.isControl=" + event.isControl);    print("    event.isMeta=" + event.isMeta);    print("    event.isAlt=" + event.isAlt);    print("    event.touchPoints=" + event.touchPoints);    for (var i = 0; i < event.points.length; i++) {        print("    event.points[" + i + "].x.y:" + event.points[i].x + ", " + event.points[i].y);    }    print("    event.radius=" + event.radius);    print("    event.isPinching=" + event.isPinching);    print("    event.isPinchOpening=" + event.isPinchOpening);     print("    event.angle=" + event.angle);    print("    event.deltaAngle=" + event.deltaAngle);    for (var i = 0; i < event.points.length; i++) {        print("    event.angles[" + i + "]:" + event.angles[i]);    }    print("    event.isRotating=" + event.isRotating);    print("    event.rotating=" + event.rotating);} function touchBeginEvent(event) {    printTouchEvent("touchBeginEvent", event);    lastX = event.x;    lastY = event.y;} function touchUpdateEvent(event) {    printTouchEvent("touchUpdateEvent", event);     if (event.isRotating && event.touchPoints == ROTATE_TOUCH_POINTS) {        // it's possible for the multitouch rotate gesture to generate angle changes which are faster than comfortable to        // view, so we will scale this change in angle to make it more comfortable        var scaledRotate = event.deltaAngle * ROTATE_YAW_SCALE;        print(">>> event.deltaAngle=" + event.deltaAngle);        print(">>> scaledRotate=" + scaledRotate);        yawFromMultiTouch += scaledRotate;     }         if (event.touchPoints == PITCH_TOUCH_POINTS) {        pitchFromMultiTouch += ((event.y - lastY) * MOUSE_PITCH_SCALE * FIXED_MOUSE_TIMESTEP);    }    lastX = event.x;    lastY = event.y;    lastAngle = event.angle;} function touchEndEvent(event) {    printTouchEvent("touchEndEvent", event);}// Map touch events to our callbacksController.touchBeginEvent.connect(touchBeginEvent);Controller.touchUpdateEvent.connect(touchUpdateEvent);Controller.touchEndEvent.connect(touchEndEvent);   function update(deltaTime) {    // rotate body yaw for yaw received from multitouch rotate    var newOrientation = Quat.multiply(MyAvatar.orientation, Quat.fromVec3Radians( { x: 0, y: yawFromMultiTouch, z: 0 } ));    if (wantDebugging) {        print("changing orientation"            + " [old]MyAvatar.orientation="+MyAvatar.orientation.x + "," + MyAvatar.orientation.y + ","             + MyAvatar.orientation.z + "," + MyAvatar.orientation.w            + " newOrientation="+newOrientation.x + "," + newOrientation.y + "," + newOrientation.z + "," + newOrientation.w);    }    MyAvatar.orientation = newOrientation;    yawFromMultiTouch = 0;     // apply pitch from mouse    var newPitch = MyAvatar.headPitch + pitchFromMultiTouch;    if (wantDebugging) {        print("changing pitch [old]MyAvatar.headPitch="+MyAvatar.headPitch+ " newPitch="+newPitch);    }    MyAvatar.headPitch = newPitch;    pitchFromMultiTouch = 0;}Script.update.connect(update);  function scriptEnding() {    // handle any shutdown logic here} Script.scriptEnding.connect(scriptEnding);