refactor, add lobby

lobby/lobby.rs

@@ -0,0 +1,23 @@
+use crate::engine::Engine;
+use crate::player::PlayerConsole;
+
+pub struct Lobby {}
+
+impl Lobby {
+    pub fn new() -> Lobby {
+        Lobby {}
+    }
+
+    pub fn run(self) -> Result<(), Box<dyn std::error::Error>> {
+        loop {
+            let p1 = Box::new(PlayerConsole::new("Gopher"));
+            let p2 = Box::new(PlayerConsole::new("Rustacean"));
+            let mut engine = Engine::new(p1, p2);
+
+            match engine.run() {
+                Ok(_) => continue,
+                Err(e) => return Err(e),
+            };
+        }
+    }
+}

lobby/mod.rs

@@ -0,0 +1,2 @@
+mod lobby;
+pub use lobby::Lobby;