feat: /hmd

src/core/client.rs

@@ -2,6 +2,7 @@ use super::eventloop::EventLoop;
 use super::scenegraph::Scenegraph;
 use crate::nodes::data;
 use crate::nodes::field;
+use crate::nodes::hmd;
 use crate::nodes::input;
 use crate::nodes::item;
 use crate::nodes::model;
@@ -64,6 +65,7 @@ impl Client {
 		});
 		let _ = client.scenegraph.client.set(Arc::downgrade(&client));
 		let _ = client.root.set(Root::create(&client));
+		hmd::make_alias(&client);
 		spatial::create_interface(&client);
 		field::create_interface(&client);
 		model::create_interface(&client);

src/main.rs

@@ -3,6 +3,7 @@ mod nodes;
 mod wayland;
 
 use crate::core::destroy_queue;
+use crate::nodes::hmd;
 use crate::nodes::model::{MODELS_TO_DROP, MODEL_REGISTRY};
 use crate::wayland::Wayland;
 
@@ -63,6 +64,7 @@ fn main() -> Result<()> {
 	println!("Stardust ready!");
 	stereokit.run(
 		|draw_ctx| {
+			hmd::frame(&stereokit);
 			wayland.frame(&stereokit);
 			destroy_queue::clear();
 

src/nodes/core.rs

@@ -30,7 +30,7 @@ pub struct Node {
 	local_methods: DashMap<String, Method, BuildHasherDefault<FxHasher>>,
 	destroyable: AtomicBool,
 
-	alias: OnceCell<Arc<Alias>>,
+	pub alias: OnceCell<Arc<Alias>>,
 	aliases: Registry<Alias>,
 
 	pub spatial: OnceCell<Arc<Spatial>>,
@@ -198,7 +198,7 @@ impl Node {
 #[allow(dead_code)]
 pub struct Alias {
 	node: Weak<Node>,
-	original: Weak<Node>,
+	pub original: Weak<Node>,
 
 	local_signals: Vec<&'static str>,
 	local_methods: Vec<&'static str>,

src/nodes/hmd.rs

@@ -0,0 +1,35 @@
+use super::{
+	core::{Alias, Node},
+	spatial::Spatial,
+};
+use crate::core::client::{Client, INTERNAL_CLIENT};
+use glam::{vec3, Mat4};
+use std::sync::Arc;
+use stereokit::StereoKit;
+
+lazy_static::lazy_static! {
+	static ref HMD: Arc<Node> = create();
+}
+
+fn create() -> Arc<Node> {
+	let node = Arc::new(Node::create(&INTERNAL_CLIENT, "", "hmd", false));
+	Spatial::add_to(&node, None, Mat4::IDENTITY).unwrap();
+
+	node
+}
+
+pub fn frame(sk: &StereoKit) {
+	let spatial = HMD.spatial.get().unwrap();
+	let hmd_pose = sk.input_head();
+	*spatial.transform.lock() = Mat4::from_scale_rotation_translation(
+		vec3(1.0, 1.0, 1.0),
+		hmd_pose.orientation.into(),
+		hmd_pose.position.into(),
+	);
+}
+
+pub fn make_alias(client: &Arc<Client>) -> Arc<Node> {
+	let node = Node::create(client, "", "hmd", false).add_to_scenegraph();
+	Alias::add_to(&node, &HMD, vec!["getTransform"], vec![], vec![], vec![]);
+	node
+}

src/nodes/mod.rs

@@ -1,3 +1,4 @@
+pub mod hmd;
 pub mod core;
 pub mod data;
 pub mod field;