feat: logic step

src/main.rs

@@ -4,6 +4,7 @@ mod nodes;
 use self::core::eventloop::EventLoop;
 use anyhow::{ensure, Result};
 use clap::Parser;
+use stereokit_rs as sk;
 use stereokit_rs::enums::DisplayMode;
 use stereokit_rs::functions::*;
 
@@ -30,7 +31,8 @@ fn main() -> Result<()> {
 
 	sk_run(
 		&mut Box::new(&mut || {
-			// println!("hii uwu");
+			let time = unsafe { sk::sys::time_get() };
+			nodes::root::logic_step(time);
 		}),
 		&mut Box::new(&mut || {
 			println!("Shutting down...");

src/nodes/root.rs

@@ -1,10 +1,35 @@
 use super::core::Node;
 use super::spatial::Spatial;
 use crate::core::client::Client;
+use crate::core::registry::Registry;
+use anyhow::Result;
 use glam::Mat4;
+use lazy_static::lazy_static;
+use libstardustxr::flex::flexbuffer_from_vector_arguments;
 use std::sync::Arc;
 
+lazy_static! {
+	static ref LOGIC_STEP_REGISTRY: Registry<Node> = Registry::default();
+}
+
+pub fn logic_step(delta: f64) {
+	let data = flexbuffer_from_vector_arguments(move |fbb| {
+		fbb.push(delta);
+		fbb.push(0_f64);
+	});
+	for root in LOGIC_STEP_REGISTRY.get_valid_contents() {
+		root.send_remote_signal("logicStep", &data);
+	}
+}
+
 pub fn create_root(client: &Arc<Client>) {
-	let node = Node::create(client, "", "", false).add_to_scenegraph();
+	let node = Node::create(client, "", "", false);
+	node.add_local_signal("subscribeLogicStep", subscribe_logic_step);
+	let node = node.add_to_scenegraph();
 	let _ = Spatial::add_to(&node, None, Mat4::IDENTITY);
 }
+
+fn subscribe_logic_step(node: &Node, calling_client: Arc<Client>, data: &[u8]) -> Result<()> {
+	LOGIC_STEP_REGISTRY.add_raw(&calling_client.scenegraph.get_node("/").unwrap());
+	Ok(())
+}