add sync for speed

flake.lock

@@ -59,16 +59,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1746557022,
-        "narHash": "sha256-QkNoyEf6TbaTW5UZYX0OkwIJ/ZMeKSSoOMnSDPQuol0=",
+        "lastModified": 1750400657,
+        "narHash": "sha256-3vkjFnxCOP6vm5Pm13wC/Zy6/VYgei/I/2DWgW4RFeA=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "1d3aeb5a193b9ff13f63f4d9cc169fb88129f860",
+        "rev": "b2485d56967598da068b5a6946dadda8bfcbcd37",
         "type": "github"
       },
       "original": {
         "id": "nixpkgs",
-        "ref": "nixos-24.11",
+        "ref": "nixos-25.05",
         "type": "indirect"
       }
     },

flake.nix

@@ -1,6 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "nixpkgs/nixos-24.11";
+    nixpkgs.url = "nixpkgs/nixos-25.05";
     flakelight = {
       url = "github:nix-community/flakelight";
       inputs.nixpkgs.follows = "nixpkgs";

src/main.rs

@@ -39,6 +39,7 @@ pub enum SyncCommand<'a> {
     Join { session: &'a str },
     Tick { session: &'a str, tick: u64 },
     Play { session: &'a str, play: bool },
+    Speed { session: &'a str, speed: f32 },
     Clients { session: &'a str, count: usize },
 }
 
@@ -121,6 +122,7 @@ impl Server {
                 None => error!(session = session_name, "session not found for command"),
             },
             session_command @ (SyncCommand::Play { session, .. }
+            | SyncCommand::Speed { session, .. }
             | SyncCommand::Tick { session, .. }) => match self.sessions.get_mut(*session) {
                 Some(mut session) => {
                     if session.owner == sender {

src/session.rs

@@ -7,6 +7,7 @@ pub struct Session {
     owner_token: String,
     clients: Vec<PeerId>,
     tick: u64,
+    speed: f32,
     playing: bool,
     owner_left: Option<Instant>,
     pub token: String,
@@ -26,6 +27,7 @@ impl Session {
             clients: Vec::new(),
             playing: false,
             tick: 0,
+            speed: 1.0,
             owner_left: None,
             token,
         }
@@ -57,6 +59,10 @@ impl Session {
                 session: &self.token,
                 play: self.playing,
             },
+            SyncCommand::Speed {
+                session: &self.token,
+                speed: self.speed,
+            },
         ]
         .into_iter()
     }
@@ -71,10 +77,9 @@ impl Session {
 
     pub fn handle_command(&mut self, command: &SyncCommand) {
         match command {
-            SyncCommand::Tick { tick, .. } => {
-                self.tick = *tick;
-            }
+            SyncCommand::Tick { tick, .. } => self.tick = *tick,
             SyncCommand::Play { play, .. } => self.playing = *play,
+            SyncCommand::Speed { speed, .. } => self.speed = *speed,
             _ => {}
         }
     }