302 lines
11 KiB
Rust
302 lines
11 KiB
Rust
use glam::{Affine3A, Quat, Vec3, Vec3A};
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use ovr_overlay::{
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chaperone_setup::ChaperoneSetupManager,
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compositor::CompositorManager,
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sys::{EChaperoneConfigFile, ETrackingUniverseOrigin, HmdMatrix34_t},
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};
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use crate::{
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backend::{common::OverlayContainer, input::InputState},
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state::AppState,
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};
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use super::{helpers::Affine3AConvert, overlay::OpenVrOverlayData};
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struct MoverData<T> {
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pose: Affine3A,
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hand: usize,
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hand_pose: T,
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}
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pub(super) struct PlayspaceMover {
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universe: ETrackingUniverseOrigin,
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drag: Option<MoverData<Vec3A>>,
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rotate: Option<MoverData<Quat>>,
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}
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impl PlayspaceMover {
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pub fn new() -> Self {
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Self {
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universe: ETrackingUniverseOrigin::TrackingUniverseRawAndUncalibrated,
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drag: None,
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rotate: None,
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}
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}
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pub fn update(
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&mut self,
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chaperone_mgr: &mut ChaperoneSetupManager,
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overlays: &mut OverlayContainer<OpenVrOverlayData>,
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state: &AppState,
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) {
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let universe = self.universe.clone();
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if let Some(data) = self.rotate.as_mut() {
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let pointer = &state.input_state.pointers[data.hand];
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if !pointer.now.space_rotate {
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self.rotate = None;
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log::info!("End space rotate");
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return;
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}
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let new_hand =
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Quat::from_affine3(&(data.pose * state.input_state.pointers[data.hand].raw_pose));
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let dq = new_hand * data.hand_pose.conjugate();
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let rel_y = f32::atan2(
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2.0 * (dq.y * dq.w + dq.x * dq.z),
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(2.0 * (dq.w * dq.w + dq.x * dq.x)) - 1.0,
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);
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let mut space_transform = Affine3A::from_rotation_y(rel_y);
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let offset = (space_transform.transform_vector3a(state.input_state.hmd.translation)
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- state.input_state.hmd.translation)
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* -1.0;
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let mut overlay_transform = Affine3A::from_rotation_y(-rel_y);
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overlay_transform.translation = offset;
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space_transform.translation = offset;
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overlays.iter_mut().for_each(|overlay| {
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if overlay.state.grabbable {
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overlay.state.dirty = true;
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overlay.state.transform.translation =
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overlay_transform.transform_point3a(overlay.state.transform.translation);
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}
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});
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data.pose *= space_transform;
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data.hand_pose = new_hand;
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if self.universe == ETrackingUniverseOrigin::TrackingUniverseStanding {
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apply_chaperone_transform(space_transform.inverse(), chaperone_mgr);
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}
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set_working_copy(&universe, chaperone_mgr, &data.pose);
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chaperone_mgr.commit_working_copy(EChaperoneConfigFile::EChaperoneConfigFile_Live);
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} else {
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for (i, pointer) in state.input_state.pointers.iter().enumerate() {
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if pointer.now.space_rotate {
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let Some(mat) = get_working_copy(&universe, chaperone_mgr) else {
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log::warn!("Can't space rotate - failed to get zero pose");
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return;
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};
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let hand_pose = Quat::from_affine3(&(mat * pointer.raw_pose));
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self.rotate = Some(MoverData {
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pose: mat,
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hand: i,
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hand_pose,
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});
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self.drag = None;
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log::info!("Start space rotate");
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return;
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}
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}
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}
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if let Some(data) = self.drag.as_mut() {
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let pointer = &state.input_state.pointers[data.hand];
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if !pointer.now.space_drag {
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self.drag = None;
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log::info!("End space drag");
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return;
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}
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let new_hand = data
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.pose
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.transform_point3a(state.input_state.pointers[data.hand].raw_pose.translation);
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let relative_pos =
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(new_hand - data.hand_pose) * state.session.config.space_drag_multiplier;
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if relative_pos.length_squared() > 1000.0 {
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log::warn!("Space drag too fast, ignoring");
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return;
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}
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let overlay_offset = data.pose.inverse().transform_vector3a(relative_pos) * -1.0;
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overlays.iter_mut().for_each(|overlay| {
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if overlay.state.grabbable {
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overlay.state.dirty = true;
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overlay.state.transform.translation += overlay_offset;
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}
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});
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data.pose.translation += relative_pos;
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data.hand_pose = new_hand;
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if self.universe == ETrackingUniverseOrigin::TrackingUniverseStanding {
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apply_chaperone_offset(overlay_offset, chaperone_mgr);
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}
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set_working_copy(&universe, chaperone_mgr, &data.pose);
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chaperone_mgr.commit_working_copy(EChaperoneConfigFile::EChaperoneConfigFile_Live);
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} else {
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for (i, pointer) in state.input_state.pointers.iter().enumerate() {
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if pointer.now.space_drag {
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let Some(mat) = get_working_copy(&universe, chaperone_mgr) else {
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log::warn!("Can't space drag - failed to get zero pose");
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return;
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};
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let hand_pos = mat.transform_point3a(pointer.raw_pose.translation);
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self.drag = Some(MoverData {
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pose: mat,
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hand: i,
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hand_pose: hand_pos,
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});
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self.rotate = None;
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log::info!("Start space drag");
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return;
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}
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}
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}
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}
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pub fn reset_offset(&mut self, chaperone_mgr: &mut ChaperoneSetupManager, input: &InputState) {
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let mut height = 1.6;
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if let Some(mat) = get_working_copy(&self.universe, chaperone_mgr) {
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height = input.hmd.translation.y - mat.translation.y;
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if self.universe == ETrackingUniverseOrigin::TrackingUniverseStanding {
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apply_chaperone_transform(mat, chaperone_mgr);
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}
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}
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let xform = if self.universe == ETrackingUniverseOrigin::TrackingUniverseSeated {
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Affine3A::from_translation(Vec3::NEG_Y * height)
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} else {
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Affine3A::IDENTITY
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};
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set_working_copy(&self.universe, chaperone_mgr, &xform);
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chaperone_mgr.commit_working_copy(EChaperoneConfigFile::EChaperoneConfigFile_Live);
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if self.drag.is_some() {
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log::info!("Space drag interrupted by manual reset");
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self.drag = None;
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}
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if self.rotate.is_some() {
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log::info!("Space rotate interrupted by manual reset");
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self.rotate = None;
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}
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}
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pub fn fix_floor(&mut self, chaperone_mgr: &mut ChaperoneSetupManager, input: &InputState) {
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let y1 = input.pointers[0].pose.translation.y;
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let y2 = input.pointers[1].pose.translation.y;
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let Some(mut mat) = get_working_copy(&self.universe, chaperone_mgr) else {
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log::warn!("Can't fix floor - failed to get zero pose");
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return;
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};
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let offset = y1.min(y2) - 0.03;
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mat.translation.y += offset;
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set_working_copy(&self.universe, chaperone_mgr, &mat);
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chaperone_mgr.commit_working_copy(EChaperoneConfigFile::EChaperoneConfigFile_Live);
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if self.drag.is_some() {
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log::info!("Space drag interrupted by fix floor");
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self.drag = None;
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}
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if self.rotate.is_some() {
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log::info!("Space rotate interrupted by fix floor");
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self.rotate = None;
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}
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}
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pub fn playspace_changed(
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&mut self,
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compositor_mgr: &mut CompositorManager,
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_chaperone_mgr: &mut ChaperoneSetupManager,
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) {
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let new_universe = compositor_mgr.get_tracking_space();
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if new_universe != self.universe {
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log::info!(
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"Playspace changed: {} -> {}",
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universe_str(&self.universe),
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universe_str(&new_universe)
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);
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self.universe = new_universe;
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}
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if self.drag.is_some() {
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log::info!("Space drag interrupted by external change");
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self.drag = None;
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}
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if self.rotate.is_some() {
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log::info!("Space rotate interrupted by external change");
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self.rotate = None;
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}
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}
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pub fn get_universe(&self) -> ETrackingUniverseOrigin {
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self.universe.clone()
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}
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}
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fn universe_str(universe: &ETrackingUniverseOrigin) -> &'static str {
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match universe {
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ETrackingUniverseOrigin::TrackingUniverseSeated => "Seated",
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ETrackingUniverseOrigin::TrackingUniverseStanding => "Standing",
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ETrackingUniverseOrigin::TrackingUniverseRawAndUncalibrated => "Raw",
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}
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}
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fn get_working_copy(
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universe: &ETrackingUniverseOrigin,
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chaperone_mgr: &mut ChaperoneSetupManager,
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) -> Option<Affine3A> {
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chaperone_mgr.revert_working_copy();
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let mat = match universe {
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ETrackingUniverseOrigin::TrackingUniverseStanding => {
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chaperone_mgr.get_working_standing_zero_pose_to_raw_tracking_pose()
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}
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_ => chaperone_mgr.get_working_seated_zero_pose_to_raw_tracking_pose(),
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};
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mat.map(|m| m.to_affine())
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}
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fn set_working_copy(
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universe: &ETrackingUniverseOrigin,
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chaperone_mgr: &mut ChaperoneSetupManager,
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mat: &Affine3A,
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) {
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let mat = HmdMatrix34_t::from_affine(mat);
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match universe {
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ETrackingUniverseOrigin::TrackingUniverseStanding => {
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chaperone_mgr.set_working_standing_zero_pose_to_raw_tracking_pose(&mat)
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}
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_ => chaperone_mgr.set_working_seated_zero_pose_to_raw_tracking_pose(&mat),
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};
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}
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fn apply_chaperone_offset(offset: Vec3A, chaperone_mgr: &mut ChaperoneSetupManager) {
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let mut quads = chaperone_mgr.get_live_collision_bounds_info();
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quads.iter_mut().for_each(|quad| {
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quad.vCorners.iter_mut().for_each(|corner| {
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corner.v[0] += offset.x;
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corner.v[2] += offset.z;
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});
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});
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chaperone_mgr.set_working_collision_bounds_info(quads.as_mut_slice());
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}
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fn apply_chaperone_transform(transform: Affine3A, chaperone_mgr: &mut ChaperoneSetupManager) {
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let mut quads = chaperone_mgr.get_live_collision_bounds_info();
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quads.iter_mut().for_each(|quad| {
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quad.vCorners.iter_mut().for_each(|corner| {
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let coord = transform.transform_point3a(Vec3A::from_slice(&corner.v));
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corner.v[0] = coord.x;
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corner.v[2] = coord.z;
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});
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});
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chaperone_mgr.set_working_collision_bounds_info(quads.as_mut_slice());
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}
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