openvr haptics

src/backend/openvr/input.rs

@@ -1,4 +1,4 @@
-use std::{array, io::Write, path::Path};
+use std::{array, io::Write, path::Path, time::Duration};
 
 use ovr_overlay::{
     input::{ActionHandle, ActionSetHandle, ActiveActionSet, InputManager, InputValueHandle},
@@ -11,7 +11,7 @@ use ovr_overlay::{
 };
 
 use crate::{
-    backend::input::{TrackedDevice, TrackedDeviceRole},
+    backend::input::{Haptics, TrackedDevice, TrackedDeviceRole},
     state::AppState,
 };
 
@@ -119,6 +119,18 @@ impl OpenVrInputSource {
         })
     }
 
+    pub fn haptics(&mut self, input: &mut InputManager, hand: usize, haptics: &Haptics) {
+        let hnd = self.hands[hand].haptics_hnd;
+        let _ = input.trigger_haptic_vibration_action(
+            hnd,
+            0.0,
+            Duration::from_secs_f32(haptics.duration),
+            haptics.frequency,
+            haptics.intensity,
+            INPUT_ANY,
+        );
+    }
+
     pub fn update(
         &mut self,
         input: &mut InputManager,

src/backend/openvr/mod.rs

@@ -162,8 +162,8 @@ pub fn openvr_run(running: Arc<AtomicBool>) -> Result<(), BackendError> {
 
         space_mover.update(&mut chaperone_mgr, &mut overlays, &state);
 
-        let pointer_lengths = interact(&mut overlays, &mut state);
-        for (idx, len) in pointer_lengths.iter().enumerate() {
+        let lengths_haptics = interact(&mut overlays, &mut state);
+        for (idx, (len, haptics)) in lengths_haptics.iter().enumerate() {
             lines.draw_from(
                 pointer_lines[idx],
                 state.input_state.pointers[idx].pose,
@@ -171,6 +171,9 @@ pub fn openvr_run(running: Arc<AtomicBool>) -> Result<(), BackendError> {
                 state.input_state.pointers[idx].interaction.mode as usize + 1,
                 &state.input_state.hmd,
             );
+            if let Some(haptics) = haptics {
+                input_source.haptics(&mut input_mngr, idx, haptics)
+            }
         }
 
         lines.update(&mut overlay_mngr, &mut state);