Add gameId and placeId project properties

src/project.rs

@@ -57,6 +57,14 @@ pub struct Project {
     #[serde(skip_serializing_if = "Option::is_none")]
     pub serve_place_ids: Option<HashSet<u64>>,
 
+    /// If specified, sets the current place's place ID when connecting to the
+    /// Rojo server from Roblox Studio.
+    pub place_id: Option<u64>,
+
+    /// If specified, sets the current place's game ID when connecting to the
+    /// Rojo server from Roblox Studio.
+    pub game_id: Option<u64>,
+
     /// A list of globs, relative to the folder the project file is in, that
     /// match files that should be excluded if Rojo encounters them.
     #[serde(default, skip_serializing_if = "Vec::is_empty")]

src/serve_session.rs

@@ -195,6 +195,14 @@ impl ServeSession {
         self.root_project.serve_port
     }
 
+    pub fn place_id(&self) -> Option<u64> {
+        self.root_project.place_id
+    }
+
+    pub fn game_id(&self) -> Option<u64> {
+        self.root_project.game_id
+    }
+
     pub fn start_time(&self) -> Instant {
         self.start_time
     }

src/web/api.rs

@@ -69,6 +69,8 @@ impl ApiService {
             session_id: self.serve_session.session_id(),
             project_name: self.serve_session.project_name().to_owned(),
             expected_place_ids: self.serve_session.serve_place_ids().cloned(),
+            place_id: self.serve_session.place_id(),
+            game_id: self.serve_session.game_id(),
             root_instance_id,
         })
     }

src/web/interface.rs

@@ -104,6 +104,8 @@ pub struct ServerInfoResponse {
     pub protocol_version: u64,
     pub project_name: String,
     pub expected_place_ids: Option<HashSet<u64>>,
+    pub game_id: Option<u64>,
+    pub place_id: Option<u64>,
     pub root_instance_id: Ref,
 }