first steps with refs

src/main.rs

@@ -6,13 +6,11 @@ mod game;
 mod player;
 mod level;
 mod position;
+mod monster;
 
 fn main() {
     let mut p = Player::new("Teddy Tester", 10);
-    let g = Game {
-        player: &mut p,
-        levels: Vec::new()
-    };
+    let g = Game::new(&mut p);
 
     println!("{}",g.player.get_name());
     println!("{}",g.player.get_life());