FutureMoves: initial move to not storing board

src/logic/move.rs

@@ -7,9 +7,6 @@ pub struct Move {
     /// Coordinates (i, j) of the move (if it exists)
     pub coord: Option<CoordPair>,
 
-    /// [`Board`] state after move is made
-    pub board: Board,
-
     /// Current winner of the match
     pub winner: Winner,
 
@@ -41,7 +38,6 @@ impl Move {
     pub fn new(coord: Option<CoordPair>, board: Board, color: Piece, agent_color: Piece) -> Self {
         let mut m = Move {
             coord,
-            board,
             winner: board.game_winner(),
             parent: None,
             children: Vec::new(),
@@ -51,11 +47,11 @@ impl Move {
             self_value: 0,
             tried_children: false,
         };
-        m.self_value = m.compute_self_value(agent_color);
+        m.self_value = m.compute_self_value(agent_color, &board);
         m
     }
 
-    fn compute_self_value(&self, agent_color: Piece) -> i16 {
+    fn compute_self_value(&self, agent_color: Piece, board: &Board) -> i16 {
         if self.winner == Winner::Player(!agent_color) {
             // if this board results in the opponent winning, MAJORLY negatively weigh this move
             // NOTE! this branch isn't completely deleted because if so, the bot wouldn't make a move.
@@ -72,7 +68,7 @@ impl Move {
 
         // I guess ignore Ties here, don't give them an explicit value,
         // because even in the case of ties, we want to have a higher score
-        BVM.board_value(&self.board, agent_color)
+        BVM.board_value(board, agent_color)
     }
 
     /// Sort children of the [`Move`] by their self_value in `arena`