Add additional debug prints.

game/src/lib.rs

@@ -337,9 +337,12 @@ impl Game {
 
             2 => {
                 if let Some(piece_id) = self.board.tiles[play.from as usize].piece {
+                    println!("A");
                     if let Some(piece) = &self.board.pieces[piece_id as usize] {
+                        println!("B");
                         if piece.player == player {
                             let plays = self.get_alts(piece);
+                            println!("plays {}", plays.len());
                             for p in plays {
                                 if p.to == play.to {
                                     valid = true;
@@ -588,7 +591,9 @@ impl Game {
         /*
         ** Filter valid tiles from allowed.
         */
+        println!("C2");
         if let Some(alt_mode) = piece_moves.alt {
+            println!("C3 {}", alt_mode);
             match alt_mode {
                 // Knight
                 1 => {
@@ -649,6 +654,7 @@ impl Game {
 
     pub fn get_alts(&self, piece:&Piece) -> Vec<Play>
     {
+        println!("C1");
         self.get_alts_data(piece).iter().map(|info| info.play).collect()
     }