1 files changed, 6 insertions, 2 deletions
diff --git a/chesshelpers.h b/chesshelpers.h
index be92ba5..b975740 100644
--- a/chesshelpers.h
+++ b/chesshelpers.h
@@ -11,8 +11,12 @@ typedef enum {
 } piece_t;
 typedef struct BoardState {
 	int** pieces;
-	int blackKingHasMoved;
-	int whiteKingHasMoved;
+	//only falsified by moving the king or pawn
+	//does not consider check or empty squares
+	int whiteCanCastleKingside;
+	int whiteCanCastleQueenside;
+	int blackCanCastleKingside;
+	int blackCanCastleQueenside;
 	int lastPawnMove;
 } board_t;
 board_t init_board(int** pieces);