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46 lines
1.7 KiB
JavaScript
46 lines
1.7 KiB
JavaScript
// handControllerGrab.js
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//
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// Created by Seth Alves on 2016-9-7
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// Copyright 2016 High Fidelity, Inc.
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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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/* global MyAvatar, Vec3, Controller, Quat */
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// var GRAB_POINT_SPHERE_OFFSET = { x: 0, y: 0.2, z: 0 };
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// var GRAB_POINT_SPHERE_OFFSET = { x: 0.1, y: 0.175, z: 0.04 };
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// this offset needs to match the one in libraries/display-plugins/src/display-plugins/hmd/HmdDisplayPlugin.cpp
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var GRAB_POINT_SPHERE_OFFSET = { x: 0.1, y: 0.32, z: 0.04 };
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getGrabPointSphereOffset = function(handController) {
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if (handController === Controller.Standard.RightHand) {
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return GRAB_POINT_SPHERE_OFFSET;
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}
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return {
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x: GRAB_POINT_SPHERE_OFFSET.x * -1,
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y: GRAB_POINT_SPHERE_OFFSET.y,
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z: GRAB_POINT_SPHERE_OFFSET.z
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};
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};
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// controllerWorldLocation is where the controller would be, in-world, with an added offset
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getControllerWorldLocation = function (handController, doOffset) {
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var orientation;
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var position;
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var pose = Controller.getPoseValue(handController);
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if (pose.valid) {
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orientation = Quat.multiply(MyAvatar.orientation, pose.rotation);
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position = Vec3.sum(Vec3.multiplyQbyV(MyAvatar.orientation, pose.translation), MyAvatar.position);
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// add to the real position so the grab-point is out in front of the hand, a bit
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if (doOffset) {
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position = Vec3.sum(position, Vec3.multiplyQbyV(orientation, getGrabPointSphereOffset(handController)));
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}
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}
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return {position: position,
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translation: position,
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orientation: orientation,
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rotation: orientation,
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valid: pose.valid};
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};
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