improve player management

src/game.rs

@@ -1,4 +1,4 @@
-use crate::{agent::Agent, repr::Board};
+use crate::{agent::Agent, board::Board};
 use std::time::Duration;
 
 pub struct Game {
@@ -43,17 +43,17 @@ impl Game {
 
     // TODO! make this loop good
     pub fn game_loop(&mut self) {
+        let mut i = 0;
         loop {
+            self.step(i);
+
+            // alternate which player plays
+            i += 1;
+            i %= self.players.len();
+
             println!("{}", self);
 
             std::thread::sleep(Duration::from_millis(500));
-            self.step(0);
-            println!("{}", self);
-
-            std::thread::sleep(Duration::from_millis(500));
-
-            self.step(1);
-            println!("{}", self);
         }
     }
 }