webxr_api/
hand.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use euclid::RigidTransform3D;
6
7use crate::Native;
8
9#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)]
10#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
11pub struct HandSpace;
12
13#[derive(Clone, Debug, Default)]
14#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
15pub struct Hand<J> {
16    pub wrist: Option<J>,
17    pub thumb_metacarpal: Option<J>,
18    pub thumb_phalanx_proximal: Option<J>,
19    pub thumb_phalanx_distal: Option<J>,
20    pub thumb_phalanx_tip: Option<J>,
21    pub index: Finger<J>,
22    pub middle: Finger<J>,
23    pub ring: Finger<J>,
24    pub little: Finger<J>,
25}
26
27#[derive(Clone, Debug, Default)]
28#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
29pub struct Finger<J> {
30    pub metacarpal: Option<J>,
31    pub phalanx_proximal: Option<J>,
32    pub phalanx_intermediate: Option<J>,
33    pub phalanx_distal: Option<J>,
34    pub phalanx_tip: Option<J>,
35}
36
37#[derive(Clone, Copy, Debug)]
38#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
39pub struct JointFrame {
40    pub pose: RigidTransform3D<f32, HandSpace, Native>,
41    pub radius: f32,
42}
43
44impl Default for JointFrame {
45    fn default() -> Self {
46        Self {
47            pose: RigidTransform3D::identity(),
48            radius: 0.,
49        }
50    }
51}
52
53impl<J> Hand<J> {
54    pub fn map<R>(&self, map: impl (Fn(&Option<J>, Joint) -> Option<R>) + Copy) -> Hand<R> {
55        Hand {
56            wrist: map(&self.wrist, Joint::Wrist),
57            thumb_metacarpal: map(&self.thumb_metacarpal, Joint::ThumbMetacarpal),
58            thumb_phalanx_proximal: map(&self.thumb_phalanx_proximal, Joint::ThumbPhalanxProximal),
59            thumb_phalanx_distal: map(&self.thumb_phalanx_distal, Joint::ThumbPhalanxDistal),
60            thumb_phalanx_tip: map(&self.thumb_phalanx_tip, Joint::ThumbPhalanxTip),
61            index: self.index.map(|f, j| map(f, Joint::Index(j))),
62            middle: self.middle.map(|f, j| map(f, Joint::Middle(j))),
63            ring: self.ring.map(|f, j| map(f, Joint::Ring(j))),
64            little: self.little.map(|f, j| map(f, Joint::Little(j))),
65        }
66    }
67
68    pub fn get(&self, joint: Joint) -> Option<&J> {
69        match joint {
70            Joint::Wrist => self.wrist.as_ref(),
71            Joint::ThumbMetacarpal => self.thumb_metacarpal.as_ref(),
72            Joint::ThumbPhalanxProximal => self.thumb_phalanx_proximal.as_ref(),
73            Joint::ThumbPhalanxDistal => self.thumb_phalanx_distal.as_ref(),
74            Joint::ThumbPhalanxTip => self.thumb_phalanx_tip.as_ref(),
75            Joint::Index(f) => self.index.get(f),
76            Joint::Middle(f) => self.middle.get(f),
77            Joint::Ring(f) => self.ring.get(f),
78            Joint::Little(f) => self.little.get(f),
79        }
80    }
81}
82
83impl<J> Finger<J> {
84    pub fn map<R>(&self, map: impl (Fn(&Option<J>, FingerJoint) -> Option<R>) + Copy) -> Finger<R> {
85        Finger {
86            metacarpal: map(&self.metacarpal, FingerJoint::Metacarpal),
87            phalanx_proximal: map(&self.phalanx_proximal, FingerJoint::PhalanxProximal),
88            phalanx_intermediate: map(&self.phalanx_intermediate, FingerJoint::PhalanxIntermediate),
89            phalanx_distal: map(&self.phalanx_distal, FingerJoint::PhalanxDistal),
90            phalanx_tip: map(&self.phalanx_tip, FingerJoint::PhalanxTip),
91        }
92    }
93
94    pub fn get(&self, joint: FingerJoint) -> Option<&J> {
95        match joint {
96            FingerJoint::Metacarpal => self.metacarpal.as_ref(),
97            FingerJoint::PhalanxProximal => self.phalanx_proximal.as_ref(),
98            FingerJoint::PhalanxIntermediate => self.phalanx_intermediate.as_ref(),
99            FingerJoint::PhalanxDistal => self.phalanx_distal.as_ref(),
100            FingerJoint::PhalanxTip => self.phalanx_tip.as_ref(),
101        }
102    }
103}
104
105#[derive(Clone, Copy, Debug, Eq, PartialEq)]
106#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
107pub enum FingerJoint {
108    Metacarpal,
109    PhalanxProximal,
110    PhalanxIntermediate,
111    PhalanxDistal,
112    PhalanxTip,
113}
114
115#[derive(Clone, Copy, Debug, Eq, PartialEq)]
116#[cfg_attr(feature = "ipc", derive(serde::Serialize, serde::Deserialize))]
117pub enum Joint {
118    Wrist,
119    ThumbMetacarpal,
120    ThumbPhalanxProximal,
121    ThumbPhalanxDistal,
122    ThumbPhalanxTip,
123    Index(FingerJoint),
124    Middle(FingerJoint),
125    Ring(FingerJoint),
126    Little(FingerJoint),
127}
webxr_api/hand.rs

webxr_api/
hand.rs
