reduce size of ints that represent value

src/logic/move.rs

@@ -23,10 +23,10 @@ pub struct Move {
     pub tried_children: bool,
 
     /// Value of this move (including children)
-    pub value: Option<i128>,
+    pub value: Option<i32>,
 
     /// What is the inherit value of this move (not including children)
-    pub self_value: i64,
+    pub self_value: i16,
 
     /// Which color made a move on this move?
     pub color: Piece,
@@ -55,15 +55,15 @@ impl Move {
         m
     }
 
-    fn compute_self_value(&self, agent_color: Piece) -> i64 {
+    fn compute_self_value(&self, agent_color: Piece) -> 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.
             // We shouldn't prune branches because we still need to always react to the opponent's moves
-            return i64::MIN + 1;
+            return i16::MIN + 1;
         } else if self.winner == Winner::Player(agent_color) {
             // results in a win for the agent
-            return i64::MAX - 1;
+            return i16::MAX - 1;
         }
         // else if self.winner == Winner::Tie {
         //     // idk what a Tie should be valued?