X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=812a370059801cb73f88bf83986c704333551941;hp=2317626e3d39cfe6604ce2fc41f7465a7ccbe8e1;hb=5f12069cbfc882fdf989d04618ad9c33e603c419;hpb=3d8c0f16c237b1fddaec75c5db70545da47e8bcc

diff --git a/src/types.h b/src/types.h
index 2317626e..812a3700 100644
--- a/src/types.h
+++ b/src/types.h
@@ -116,20 +116,28 @@ enum MoveType {
   CASTLING  = 3 << 14
 };
 
-enum CastlingFlag {  // Defined as in PolyGlot book hash key
+enum Color {
+  WHITE, BLACK, NO_COLOR, COLOR_NB = 2
+};
+
+enum CastlingSide {
+  KING_SIDE, QUEEN_SIDE, CASTLING_SIDE_NB = 2
+};
+
+enum CastlingRight {  // Defined as in PolyGlot book hash key
   NO_CASTLING,
   WHITE_OO,
   WHITE_OOO   = WHITE_OO << 1,
   BLACK_OO    = WHITE_OO << 2,
   BLACK_OOO   = WHITE_OO << 3,
   ANY_CASTLING = WHITE_OO | WHITE_OOO | BLACK_OO | BLACK_OOO,
-  CASTLING_FLAG_NB = 16
+  CASTLING_RIGHT_NB = 16
 };
 
-enum CastlingSide {
-  KING_SIDE,
-  QUEEN_SIDE,
-  CASTLING_SIDE_NB = 2
+template<Color C, CastlingSide S> struct MakeCastling {
+  static const CastlingRight
+  right = C == WHITE ? S == QUEEN_SIDE ? WHITE_OOO : WHITE_OO
+                     : S == QUEEN_SIDE ? BLACK_OOO : BLACK_OO;
 };
 
 enum Phase {
@@ -187,10 +195,6 @@ enum Piece {
   PIECE_NB = 16
 };
 
-enum Color {
-  WHITE, BLACK, NO_COLOR, COLOR_NB = 2
-};
-
 enum Depth {
 
   ONE_PLY = 2,
@@ -333,8 +337,8 @@ inline Square operator~(Square s) {
   return Square(s ^ SQ_A8); // Vertical flip SQ_A1 -> SQ_A8
 }
 
-inline Square operator|(File f, Rank r) {
-  return Square((r << 3) | f);
+inline CastlingRight operator|(Color c, CastlingSide s) {
+  return CastlingRight(WHITE_OO << ((s == QUEEN_SIDE) + 2 * c));
 }
 
 inline Value mate_in(int ply) {
@@ -345,12 +349,12 @@ inline Value mated_in(int ply) {
   return -VALUE_MATE + ply;
 }
 
-inline Piece make_piece(Color c, PieceType pt) {
-  return Piece((c << 3) | pt);
+inline Square make_square(File f, Rank r) {
+  return Square((r << 3) | f);
 }
 
-inline CastlingFlag make_castling_flag(Color c, CastlingSide s) {
-  return CastlingFlag(WHITE_OO << ((s == QUEEN_SIDE) + 2 * c));
+inline Piece make_piece(Color c, PieceType pt) {
+  return Piece((c << 3) | pt);
 }
 
 inline PieceType type_of(Piece p)  {