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223 lines
8.7 KiB
JavaScript
223 lines
8.7 KiB
JavaScript
//
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// hydraMove.js
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// examples
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//
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// Created by Brad Hefta-Gaub on 2/10/14.
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// Copyright 2014 High Fidelity, Inc.
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//
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// This is an example script that demonstrates use of the Controller and MyAvatar classes to implement
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// avatar flying through the hydra/controller joysticks
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//
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// Distributed under the Apache License, Version 2.0.
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// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
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//
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var damping = 0.9;
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var position = { x: MyAvatar.position.x, y: MyAvatar.position.y, z: MyAvatar.position.z };
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var joysticksCaptured = false;
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var THRUST_CONTROLLER = 0;
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var VIEW_CONTROLLER = 1;
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var INITIAL_THRUST_MULTPLIER = 1.0;
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var THRUST_INCREASE_RATE = 1.05;
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var MAX_THRUST_MULTIPLIER = 75.0;
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var thrustMultiplier = INITIAL_THRUST_MULTPLIER;
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var grabDelta = { x: 0, y: 0, z: 0};
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var grabDeltaVelocity = { x: 0, y: 0, z: 0};
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var grabStartRotation = { x: 0, y: 0, z: 0, w: 1};
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var grabCurrentRotation = { x: 0, y: 0, z: 0, w: 1};
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var grabbingWithRightHand = false;
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var wasGrabbingWithRightHand = false;
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var grabbingWithLeftHand = false;
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var wasGrabbingWithLeftHand = false;
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var EPSILON = 0.000001;
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var velocity = { x: 0, y: 0, z: 0};
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var THRUST_MAG_UP = 100.0;
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var THRUST_MAG_DOWN = 100.0;
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var THRUST_MAG_FWD = 150.0;
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var THRUST_MAG_BACK = 100.0;
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var THRUST_MAG_LATERAL = 150.0;
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var THRUST_JUMP = 120.0;
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var YAW_MAG = 100.0;
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var PITCH_MAG = 100.0;
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var THRUST_MAG_HAND_JETS = THRUST_MAG_FWD;
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var JOYSTICK_YAW_MAG = YAW_MAG;
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var JOYSTICK_PITCH_MAG = PITCH_MAG * 0.5;
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var LEFT_PALM = 0;
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var LEFT_BUTTON_4 = 4;
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var RIGHT_PALM = 2;
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var RIGHT_BUTTON_4 = 10;
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function printVector(text, v, decimals) {
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print(text + " " + v.x.toFixed(decimals) + ", " + v.y.toFixed(decimals) + ", " + v.z.toFixed(decimals));
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}
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var debug = false;
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// Used by handleGrabBehavior() for managing the grab position changes
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function getAndResetGrabDelta() {
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var HAND_GRAB_SCALE_DISTANCE = 2.0;
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var delta = Vec3.multiply(grabDelta, (MyAvatar.scale * HAND_GRAB_SCALE_DISTANCE));
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grabDelta = { x: 0, y: 0, z: 0};
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var avatarRotation = MyAvatar.orientation;
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var result = Vec3.multiplyQbyV(avatarRotation, Vec3.multiply(delta, -1));
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return result;
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}
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function getGrabRotation() {
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var quatDiff = Quat.multiply(grabCurrentRotation, Quat.inverse(grabStartRotation));
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return quatDiff;
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}
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// When move button is pressed, process results
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function handleGrabBehavior(deltaTime) {
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// check for and handle grab behaviors
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grabbingWithRightHand = Controller.isButtonPressed(RIGHT_BUTTON_4);
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grabbingWithLeftHand = Controller.isButtonPressed(LEFT_BUTTON_4);
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stoppedGrabbingWithLeftHand = false;
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stoppedGrabbingWithRightHand = false;
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if (grabbingWithRightHand && !wasGrabbingWithRightHand) {
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// Just starting grab, capture starting rotation
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grabStartRotation = Controller.getSpatialControlRawRotation(RIGHT_PALM);
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grabStartPosition = Controller.getSpatialControlPosition(RIGHT_PALM);
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if (debug) printVector("start position", grabStartPosition, 3);
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}
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if (grabbingWithRightHand) {
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grabDelta = Vec3.subtract(Controller.getSpatialControlPosition(RIGHT_PALM), grabStartPosition);
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grabCurrentRotation = Controller.getSpatialControlRawRotation(RIGHT_PALM);
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}
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if (!grabbingWithRightHand && wasGrabbingWithRightHand) {
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// Just ending grab, capture velocity
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grabDeltaVelocity = Controller.getSpatialControlVelocity(RIGHT_PALM);
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stoppedGrabbingWithRightHand = true;
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}
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if (grabbingWithLeftHand && !wasGrabbingWithLeftHand) {
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// Just starting grab, capture starting rotation
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grabStartRotation = Controller.getSpatialControlRawRotation(LEFT_PALM);
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grabStartPosition = Controller.getSpatialControlPosition(LEFT_PALM);
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if (debug) printVector("start position", grabStartPosition, 3);
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}
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if (grabbingWithLeftHand) {
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grabDelta = Vec3.subtract(Controller.getSpatialControlPosition(LEFT_PALM), grabStartPosition);
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grabCurrentRotation = Controller.getSpatialControlRawRotation(LEFT_PALM);
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}
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if (!grabbingWithLeftHand && wasGrabbingWithLeftHand) {
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// Just ending grab, capture velocity
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grabDeltaVelocity = Controller.getSpatialControlVelocity(LEFT_PALM);
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stoppedGrabbingWithLeftHand = true;
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}
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grabbing = grabbingWithRightHand || grabbingWithLeftHand;
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stoppedGrabbing = stoppedGrabbingWithRightHand || stoppedGrabbingWithLeftHand;
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if (grabbing) {
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var headOrientation = MyAvatar.headOrientation;
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var front = Quat.getFront(headOrientation);
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var right = Quat.getRight(headOrientation);
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var up = Quat.getUp(headOrientation);
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grabDelta = Vec3.multiplyQbyV(MyAvatar.orientation, Vec3.multiply(grabDelta, -1));
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if (debug) {
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printVector("grabDelta: ", grabDelta, 3);
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}
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var THRUST_GRAB_SCALING = 0.0;
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var thrustFront = Vec3.multiply(front, MyAvatar.scale * grabDelta.z * THRUST_GRAB_SCALING * deltaTime);
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MyAvatar.addThrust(thrustFront);
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var thrustRight = Vec3.multiply(right, MyAvatar.scale * grabDelta.x * THRUST_GRAB_SCALING * deltaTime);
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MyAvatar.addThrust(thrustRight);
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var thrustUp = Vec3.multiply(up, MyAvatar.scale * grabDelta.y * THRUST_GRAB_SCALING * deltaTime);
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MyAvatar.addThrust(thrustUp);
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// add some rotation...
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var deltaRotation = getGrabRotation();
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var PITCH_SCALING = 2.0;
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var PITCH_DEAD_ZONE = 2.0;
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var YAW_SCALING = 2.0;
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var ROLL_SCALING = 2.0;
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var euler = Quat.safeEulerAngles(deltaRotation);
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// Adjust body yaw by roll from controller
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var orientation = Quat.multiply(Quat.angleAxis(((euler.y * YAW_SCALING) +
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(euler.z * ROLL_SCALING)) * deltaTime, {x:0, y: 1, z:0}), MyAvatar.orientation);
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MyAvatar.orientation = orientation;
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// Adjust head pitch from controller
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var pitch = 0.0;
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if (Math.abs(euler.x) > PITCH_DEAD_ZONE) {
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pitch = (euler.x < 0.0) ? (euler.x + PITCH_DEAD_ZONE) : (euler.x - PITCH_DEAD_ZONE);
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}
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MyAvatar.headPitch = MyAvatar.headPitch + (pitch * PITCH_SCALING * deltaTime);
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// TODO: Add some camera roll proportional to the rate of turn (so it feels like an airplane or roller coaster)
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}
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wasGrabbingWithRightHand = grabbingWithRightHand;
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wasGrabbingWithLeftHand = grabbingWithLeftHand;
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}
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// Update for joysticks and move button
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function flyWithHydra(deltaTime) {
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var thrustJoystickPosition = Controller.getJoystickPosition(THRUST_CONTROLLER);
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if (thrustJoystickPosition.x != 0 || thrustJoystickPosition.y != 0) {
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if (thrustMultiplier < MAX_THRUST_MULTIPLIER) {
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thrustMultiplier *= 1 + (deltaTime * THRUST_INCREASE_RATE);
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}
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var headOrientation = MyAvatar.headOrientation;
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var front = Quat.getFront(headOrientation);
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var right = Quat.getRight(headOrientation);
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var up = Quat.getUp(headOrientation);
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var thrustFront = Vec3.multiply(front, MyAvatar.scale * THRUST_MAG_HAND_JETS *
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thrustJoystickPosition.y * thrustMultiplier * deltaTime);
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MyAvatar.addThrust(thrustFront);
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var thrustRight = Vec3.multiply(right, MyAvatar.scale * THRUST_MAG_HAND_JETS *
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thrustJoystickPosition.x * thrustMultiplier * deltaTime);
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MyAvatar.addThrust(thrustRight);
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} else {
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thrustMultiplier = INITIAL_THRUST_MULTPLIER;
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}
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// View Controller
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var viewJoystickPosition = Controller.getJoystickPosition(VIEW_CONTROLLER);
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if (viewJoystickPosition.x != 0 || viewJoystickPosition.y != 0) {
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// change the body yaw based on our x controller
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var orientation = MyAvatar.orientation;
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var deltaOrientation = Quat.fromPitchYawRollDegrees(0, (-1 * viewJoystickPosition.x * JOYSTICK_YAW_MAG * deltaTime), 0);
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MyAvatar.orientation = Quat.multiply(orientation, deltaOrientation);
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// change the headPitch based on our x controller
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//pitch += viewJoystickPosition.y * JOYSTICK_PITCH_MAG * deltaTime;
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var newPitch = MyAvatar.headPitch + (viewJoystickPosition.y * JOYSTICK_PITCH_MAG * deltaTime);
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MyAvatar.headPitch = newPitch;
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}
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handleGrabBehavior(deltaTime);
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}
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Script.update.connect(flyWithHydra);
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Controller.captureJoystick(THRUST_CONTROLLER);
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Controller.captureJoystick(VIEW_CONTROLLER);
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// Map keyPress and mouse move events to our callbacks
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function scriptEnding() {
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// re-enabled the standard application for touch events
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Controller.releaseJoystick(THRUST_CONTROLLER);
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Controller.releaseJoystick(VIEW_CONTROLLER);
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}
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Script.scriptEnding.connect(scriptEnding);
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