Add server for game data (implement login sequence)

rc_services_room/src/operations/versioner.rs

@@ -0,0 +1,30 @@
+use polariton_server::operations::{Operation, OperationCode};
+
+pub struct VersionTeller;
+
+impl VersionTeller {
+    const VERSION_NUMBER_KEY: u8 = 112;
+    const LATEST_VERSION: i32 = 2855;
+}
+
+impl Operation for VersionTeller {
+    type State = ();
+    type User = crate::UserTy;
+
+    fn handle(&self, _: polariton::operation::ParameterTable, _: &mut Self::State, _: &Self::User) -> polariton::operation::OperationResponse {
+        let mut resp_params = std::collections::HashMap::new();
+        resp_params.insert(Self::VERSION_NUMBER_KEY, polariton::operation::Typed::Int(Self::LATEST_VERSION));
+        polariton::operation::OperationResponse {
+            code: 103,
+            return_code: 0,
+            message: polariton::operation::Typed::Null,
+            params: resp_params.into(),
+        }
+    }
+}
+
+impl OperationCode for VersionTeller {
+    fn op_code() -> u8 {
+        103
+    }
+}