move around

src/tic_tac_toe/game.rs

@@ -0,0 +1,33 @@
+use crate::{GamePlayer, Player, State};
+
+use super::{board::Board, TicTacToe};
+
+impl Board {
+    pub fn default_play<X: GamePlayer<TicTacToe>, O: GamePlayer<TicTacToe>>() -> Option<Player> {
+        Self::empty().play(&mut X::default(), &mut O::default())
+    }
+
+    pub fn play<A: GamePlayer<TicTacToe>, B: GamePlayer<TicTacToe>>(&mut self, x: &mut A, o: &mut B) -> Option<Player> {
+        let mut current_player = Player::X;
+
+        for _ in 0..9 {
+            if current_player == Player::X {
+                x.next_move(self, current_player);
+            } else {
+                o.next_move(self, current_player);
+            }
+
+            match self.result() {
+                State::Winner(player) => return Some(player),
+                State::Draw => {
+                    return None;
+                }
+                State::InProgress => {}
+            }
+
+            current_player = current_player.opponent();
+        }
+
+        None
+    }
+}