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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,134 @@ | ||
| use std::ffi::c_void; | ||
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|
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| use glam::Vec3A; | ||
| use libloading::{Library, Symbol}; | ||
|
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| use crate::{ | ||
| backend::common::OverlayContainer, | ||
| state::AppState, | ||
| }; | ||
|
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| use super::overlay::OpenXrOverlayData; | ||
|
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| pub(super) struct PlayspaceMover { | ||
| drag_hand: Option<usize>, | ||
| offset: Vec3A, | ||
| start_position: Vec3A, | ||
|
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| has_pressed: bool, | ||
| has_unpressed: bool, | ||
| pressed_timer: std::time::Instant, | ||
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| libmonado: Library, | ||
| mnd_root: *mut c_void, | ||
| playspace_move: extern "C" fn(*mut c_void, f32, f32, f32) -> i32, | ||
| } | ||
|
|
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| impl PlayspaceMover { | ||
| pub fn new() -> Self { | ||
| unsafe { | ||
| //user currently has to manually specify this. ex: LIBMONADO_PATH="/home/sarah/.local/share/envision/prefixes/c6cea4c7-69d5-4a36-af9d-ddf14e1222a6/lib/libmonado.so" | ||
| let libmonado_path = std::env::var("LIBMONADO_PATH"); | ||
| let libmonado_path = match libmonado_path { | ||
| Ok(path) => path, | ||
| Err(_) => { | ||
| log::error!("please specify the path to libmonado.so using the LIBMONADO_PATH environment variable."); | ||
| std::process::exit(1); | ||
| } | ||
| }; | ||
|
|
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| let libmonado = Library::new(libmonado_path).unwrap(); | ||
| let root_create: Symbol<extern "C" fn(*mut *mut c_void) -> i32> = | ||
| libmonado.get(b"mnd_root_create").unwrap(); | ||
| let playspace_move: Symbol<extern "C" fn(*mut c_void, f32, f32, f32) -> i32> = | ||
| libmonado.get(b"mnd_root_playspace_move").unwrap(); | ||
| let playspace_move_raw = *playspace_move; | ||
|
|
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| let mut root: *mut c_void = std::ptr::null_mut(); | ||
|
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| let ret = root_create(&mut root); | ||
|
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| if ret != 0 { | ||
| log::error!("Failed to create root, error code: {}", ret); | ||
| } | ||
|
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| Self { | ||
| drag_hand: None, | ||
| offset: Vec3A::ZERO, | ||
| start_position: Vec3A::ZERO, | ||
|
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| has_pressed: false, | ||
| has_unpressed: false, | ||
| pressed_timer: std::time::Instant::now(), | ||
|
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| libmonado, | ||
| mnd_root: root, | ||
| playspace_move: playspace_move_raw, | ||
| } | ||
| } | ||
| } | ||
|
|
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| pub fn update(&mut self, overlays: &mut OverlayContainer<OpenXrOverlayData>, state: &AppState) { | ||
| if self.has_unpressed { | ||
| if self.pressed_timer.elapsed().as_secs_f32() > 0.2 { | ||
| self.has_unpressed = false; | ||
| self.has_pressed = false; | ||
| } | ||
| } | ||
|
|
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| if let Some(hand) = self.drag_hand { | ||
| let pointer = &state.input_state.pointers[hand]; | ||
| if !pointer.now.space_drag { | ||
| self.drag_hand = None; | ||
| log::info!("End space drag"); | ||
| return; | ||
| } | ||
|
|
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| let hand_pos = state.input_state.pointers[hand].pose.translation; | ||
| let relative_pos = hand_pos - self.start_position; | ||
|
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| overlays.iter_mut().for_each(|overlay| { | ||
| if overlay.state.grabbable { | ||
| overlay.state.dirty = true; | ||
| overlay.state.transform.translation += relative_pos * -1.0; | ||
| } | ||
| }); | ||
|
|
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| self.offset += relative_pos; | ||
| self.apply_offset(); | ||
| } else { | ||
| let mut pressed = false; | ||
| for (i, pointer) in state.input_state.pointers.iter().enumerate() { | ||
| if pointer.now.space_drag { | ||
| pressed = true; | ||
| if !self.has_pressed { | ||
| self.has_pressed = true; | ||
| break; | ||
| } | ||
|
|
||
| if self.has_pressed && self.has_unpressed { | ||
| self.drag_hand = Some(i); | ||
| self.start_position = pointer.pose.translation; | ||
| self.has_pressed = false; | ||
| self.has_unpressed = false; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
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||
| if !pressed && self.has_pressed && !self.has_unpressed { | ||
| self.has_unpressed = true; | ||
| self.pressed_timer = std::time::Instant::now(); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| pub fn reset(&mut self) { | ||
| self.offset = Vec3A::ZERO; | ||
| self.start_position = Vec3A::ZERO; | ||
| } | ||
|
|
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| fn apply_offset(&mut self) { | ||
| (self.playspace_move)(self.mnd_root, self.offset.x, self.offset.y, self.offset.z); | ||
| } | ||
| } |