refactor, add lobby

main.rs

@@ -1,11 +1,12 @@
 mod engine;
 mod game;
+mod lobby;
 mod player;
 
 fn main() {
-    let mut engine = engine::Engine::new();
+    let lobby = lobby::Lobby::new();
 
-    match engine.run() {
+    match lobby.run() {
         Ok(_) => println!("game over"),
         Err(e) => println!("{}", e),
     };