////  headMove.js//  examples////  Created by Philip Rosedale on September 8, 2014//  Copyright 2014 High Fidelity, Inc.////  Press the spacebar and then use your head to move and turn.  Pull back to see your body. ////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html// var gamepads = {}; var debug = false;var willMove = false; var warpActive = false;var warpPosition = { x: 0, y: 0, z: 0 }; var hipsToEyes;var restoreCountdownTimer; //  Overlays to show target location  var WARP_SPHERE_SIZE = 0.085;var warpSphere = Overlays.addOverlay("sphere", {    position: { x: 0, y: 0, z: 0 },    size: WARP_SPHERE_SIZE,    color: { red: 200, green: 0, blue: 0 },    alpha: 0.5,    solid: true,    visible: false,}); var WARP_LINE_HEIGHT = 5;var warpLine = Overlays.addOverlay("line3d", {    start: { x: 0, y: 0, z:0 },    end: { x: 0, y: 0, z: 0 },    color: { red: 0, green: 255, blue: 255},    alpha: 1,    lineWidth: 5,    visible: false,}); var movingWithHead = false; var headStartPosition, headStartDeltaPitch, headStartFinalPitch, headStartRoll, headStartYaw;var deltaYaw = 0.0;var keyDownTime = 0.0;var timeSinceLastUp = 0.0;var watchAvatar = false; var oldMode; var lastYawTurned = 0.0;var startPullbackPosition; function saveCameraState() {    oldMode = Camera.mode;    Camera.mode = "independent";} function restoreCameraState() {    Camera.mode = oldMode;} var WATCH_AVATAR_DISTANCE = 2.5; var sound = SoundCache.getSound("http://public.highfidelity.io/sounds/Footsteps/FootstepW2Right-12db.wav");function playSound() {    Audio.playSound(sound, {      position: MyAvatar.position    });} function pullBack() {    saveCameraState();    cameraPosition = Vec3.subtract(MyAvatar.position, Vec3.multiplyQbyV(Camera.getOrientation(), { x: 0, y: -hipsToEyes, z: -hipsToEyes * WATCH_AVATAR_DISTANCE }));    Camera.setPosition(cameraPosition);    cameraPosition = Camera.getPosition();    startPullbackPosition = cameraPosition;} var WARP_SMOOTHING = 0.90;var WARP_START_TIME = 0.25;var WARP_START_DISTANCE = 2.5;var WARP_SENSITIVITY = 0.15;var MAX_WARP_DISTANCE = 25.0; var fixedHeight = true; function updateWarp() {    if (!warpActive) return;     var viewEulers = Quat.safeEulerAngles(Camera.getOrientation());    var deltaPosition = Vec3.subtract(MyAvatar.getTrackedHeadPosition(), headStartPosition);    var deltaPitch = MyAvatar.getHeadFinalPitch() - headStartFinalPitch;    deltaYaw = MyAvatar.getHeadFinalYaw() - headStartYaw;    viewEulers.x -= deltaPitch;    var look = Quat.getFront(Quat.fromVec3Degrees(viewEulers));     willMove = (keyDownTime > WARP_START_TIME);     if (willMove) {        var distance = Math.min(Math.exp(deltaPitch * WARP_SENSITIVITY) * WARP_START_DISTANCE, MAX_WARP_DISTANCE);        var warpDirection = Vec3.normalize({ x: look.x, y: (fixedHeight ? 0 : look.y), z: look.z });        var startPosition = (watchAvatar ? Camera.getPosition(): MyAvatar.getEyePosition());        warpPosition = Vec3.mix(Vec3.sum(startPosition, Vec3.multiply(warpDirection, distance)), warpPosition, WARP_SMOOTHING);    }     var cameraPosition;     if (!watchAvatar && willMove && (distance < WARP_START_DISTANCE * 0.5)) {        pullBack();        watchAvatar = true;    }     // Adjust overlays to match warp position    Overlays.editOverlay(warpSphere, {        position: warpPosition,        visible: willMove,    });    Overlays.editOverlay(warpLine, {        start: Vec3.sum(warpPosition, { x: 0, y: -WARP_LINE_HEIGHT / 2.0, z: 0 }),        end: Vec3.sum(warpPosition, { x: 0, y: WARP_LINE_HEIGHT / 2.0, z: 0 }),        visible: willMove,    });} function activateWarp() {    if (warpActive) return;    warpActive = true;    movingWithHead = true;    hipsToEyes = MyAvatar.getEyePosition().y - MyAvatar.position.y;    headStartPosition = MyAvatar.getTrackedHeadPosition();    headStartDeltaPitch = MyAvatar.getHeadDeltaPitch();    headStartFinalPitch = MyAvatar.getHeadFinalPitch();    headStartRoll = MyAvatar.getHeadFinalRoll();    headStartYaw = MyAvatar.getHeadFinalYaw();    deltaYaw = 0.0;    warpPosition = MyAvatar.position;    warpPosition.y += hipsToEyes;     updateWarp();} function finishWarp() {    if (!warpActive) return;    warpActive = false;    Overlays.editOverlay(warpSphere, {        visible: false,    });    Overlays.editOverlay(warpLine, {        visible: false,    });    if (willMove) {        if (fixedHeight) {            warpPosition.y = MyAvatar.position.y;        } else {            warpPosition.y -= hipsToEyes;        }                MyAvatar.position = warpPosition;        cameraPosition = Vec3.subtract(MyAvatar.position, Vec3.multiplyQbyV(Camera.getOrientation(), { x: 0, y: -hipsToEyes, z: -hipsToEyes * WATCH_AVATAR_DISTANCE }));        Camera.setPosition(cameraPosition);        playSound();        if (watchAvatar) {            restoreCountdownTimer = RESTORE_TIME;        }    } } function update(deltaTime) {    timeSinceLastUp += deltaTime;    if (movingWithHead) {        keyDownTime += deltaTime;        updateWarp();    }    if (restoreCountdownTimer > 0.0) {        restoreCountdownTimer -= deltaTime;         if (restoreCountdownTimer <= 0.0) {            restoreCameraState();            watchAvatar = false;             restoreCountDownTimer = 0.0;        }    }} Controller.keyPressEvent.connect(function(event) {    if (event.text == "SPACE" && !event.isAutoRepeat && !movingWithHead) {        keyDownTime = 0.0;        activateWarp();    }});                                 var DOUBLE_CLICK_TIME = 0.50;var TURN_AROUND = 180.0;var RESTORE_TIME = 0.50; Controller.keyReleaseEvent.connect(function(event) {    if (event.text == "SPACE" && !event.isAutoRepeat) {        movingWithHead = false;        if (timeSinceLastUp < DOUBLE_CLICK_TIME) {            // Turn all the way around             var turnRemaining = TURN_AROUND - lastYawTurned;            lastYawTurned = 0.0;            MyAvatar.orientation = Quat.multiply(Quat.fromPitchYawRollDegrees(0, TURN_AROUND, 0), MyAvatar.orientation);            playSound();        } else if (keyDownTime < WARP_START_TIME) {            var currentYaw = MyAvatar.getHeadFinalYaw();            lastYawTurned = currentYaw;            MyAvatar.orientation = Quat.multiply(Quat.fromPitchYawRollDegrees(0, currentYaw, 0), MyAvatar.orientation);            playSound();        }        timeSinceLastUp = 0.0;        finishWarp();    }}); function reportButtonValue(button, newValue, oldValue) {    if (button == Joysticks.BUTTON_FACE_RIGHT) {        if (newValue) {            activateWarp();        } else {            finishWarp();        }    }} Script.update.connect(update); function addJoystick(gamepad) {    gamepad.buttonStateChanged.connect(reportButtonValue);     gamepads[gamepad.instanceId] = gamepad;     print("Added gamepad: " + gamepad.name + " (" + gamepad.instanceId + ")");} function removeJoystick(gamepad) {    delete gamepads[gamepad.instanceId]     print("Removed gamepad: " + gamepad.name + " (" + gamepad.instanceId + ")");} var allJoysticks = Joysticks.getAllJoysticks();for (var i = 0; i < allJoysticks.length; i++) {    addJoystick(allJoysticks[i]);} Joysticks.joystickAdded.connect(addJoystick);Joysticks.joystickRemoved.connect(removeJoystick);