major algo improvements again

src/complexagent.rs

@@ -32,7 +32,10 @@ impl Move {
     fn value(&self, agent_color: Piece, depth: usize) -> i64 {
         let mut captured_value = self.captured as i64;
 
-        if agent_color != self.color {
+        if self.board.game_over() && self.board.get_winner() != Some(!agent_color) {
+            // if this board results in the opponent winning, MAJORLY negatively weigh this move
+            captured_value = i64::MIN;
+        } else if agent_color != self.color {
             captured_value = -captured_value;
         }
 
@@ -133,6 +136,8 @@ impl Agent for ComplexAgent {
             .into_iter()
             .max_by_key(|m| m.value(self.color, 1));
 
+        assert!(self.curr_move.is_some(), "ComplexAgent didn't make a move");
+
         self.curr_move.as_ref().map(Move::coords)
     }
 

src/game.rs

@@ -67,8 +67,37 @@ impl Game {
 
             println!("{}", self);
 
-            // Check if the game is over
+            // TODO! what if the board isn't full, but one player cannot win as
+            // they don't have any moves to play?
+            // Example::
+            // Player 1 placed at (1, 0)
+            // Players: Complex Agent (□) and Manual Agent (■)
+            //   0 1 2 3 4 5 6 7
+            //  -----------------
+            // 0|□|□|□|□|□|□|□|□|
+            //  -----------------
+            // 1|■|■|■|□|□|□| |□|
+            //  -----------------
+            // 2|■|■|□|■|□|□|□|□|
+            //  -----------------
+            // 3|■|■|□|□|■|□|□|□|
+            //  -----------------
+            // 4|■|■|□|□|■|□|□|□|
+            //  -----------------
+            // 5|□|□|■|□|■|□|□|□|
+            //  -----------------
+            // 6| |□|□|□|□|□|□|□|
+            //  -----------------
+            // 7| | | |■|■| |■| |
+            //  -----------------
+            // White Score: 17
+            // Black Score: 40
+
+            // (depth: 5) possible board states: 0
+            // thread 'main' panicked at src/complexagent.rs:139:9:
+            // ComplexAgent didn't make a move
             if self.board.game_over() {
+                // end the game
                 break;
             }
 

src/main.rs

@@ -10,8 +10,8 @@ mod piece;
 
 fn main() {
     let player1 = complexagent::ComplexAgent::new(Piece::Black);
-    let player2 = complexagent::ComplexAgent::new(Piece::White);
-    // let player2 = agent::ManualAgent::new(Piece::White);
+    // let player2 = complexagent::ComplexAgent::new(Piece::White);
+    let player2 = agent::ManualAgent::new(Piece::White);
     // let player2 = agent::RandomAgent::new(Piece::White);
     let mut game = Game::new(Box::new(player1), Box::new(player2));
     game.game_loop();