Retire color.h

[stockfish] / src / piece.h

diff --git a/src/piece.h b/src/piece.h
index 6592de1a8bbf1d2b04a34b51f9a24c706ef673c1..341e877dab938863708cc6216676d0766e933fef 100644 (file)
--- a/src/piece.h
+++ b/src/piece.h
@@ -17,21 +17,10 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-
 #if !defined(PIECE_H_INCLUDED)
 #define PIECE_H_INCLUDED
 
-////
-//// Includes
-////
-
-#include "color.h"
-#include "square.h"
-
-
-////
-//// Types
-////
+#include "value.h"
 
 enum PieceType {
   PIECE_TYPE_NONE = 0,
@@ -43,22 +32,34 @@ enum Piece {
   BP = 9, BN = 10, BB = 11, BR = 12, BQ = 13, BK = 14, PIECE_NONE = 16
 };
 
-ENABLE_OPERATORS_ON(PieceType);
-ENABLE_OPERATORS_ON(Piece);
-
-
-////
-//// Constants
-////
-
-const int SlidingArray[18] = {
-  0, 0, 0, 1, 2, 3, 0, 0, 0, 0, 0, 1, 2, 3, 0, 0, 0, 0
+enum Color {
+  WHITE, BLACK, COLOR_NONE
 };
 
-
-////
-//// Inline functions
-////
+ENABLE_OPERATORS_ON(PieceType)
+ENABLE_OPERATORS_ON(Piece)
+ENABLE_OPERATORS_ON(Color)
+
+/// Important: If the material values are changed, one must also
+/// adjust the piece square tables, and the method game_phase() in the
+/// Position class!
+///
+/// Values modified by Joona Kiiski
+
+const Value PawnValueMidgame   = Value(0x0C6);
+const Value PawnValueEndgame   = Value(0x102);
+const Value KnightValueMidgame = Value(0x331);
+const Value KnightValueEndgame = Value(0x34E);
+const Value BishopValueMidgame = Value(0x344);
+const Value BishopValueEndgame = Value(0x359);
+const Value RookValueMidgame   = Value(0x4F6);
+const Value RookValueEndgame   = Value(0x4FE);
+const Value QueenValueMidgame  = Value(0x9D9);
+const Value QueenValueEndgame  = Value(0x9FE);
+
+inline Piece make_piece(Color c, PieceType pt) {
+  return Piece((int(c) << 3) | int(pt));
+}
 
 inline PieceType type_of_piece(Piece p)  {
   return PieceType(int(p) & 7);
@@ -68,33 +69,25 @@ inline Color color_of_piece(Piece p) {
   return Color(int(p) >> 3);
 }
 
-inline Piece piece_of_color_and_type(Color c, PieceType pt) {
-  return Piece((int(c) << 3) | int(pt));
+inline Color opposite_color(Color c) {
+  return Color(int(c) ^ 1);
 }
 
-inline int piece_is_slider(Piece p) {
-  return SlidingArray[int(p)];
+inline bool color_is_ok(Color c) {
+  return c == WHITE || c == BLACK;
 }
 
-inline SquareDelta pawn_push(Color c) {
-    return (c == WHITE ? DELTA_N : DELTA_S);
+inline bool piece_type_is_ok(PieceType pt) {
+  return pt >= PAWN && pt <= KING;
 }
 
-inline bool piece_type_is_ok(PieceType pc) {
-  return pc >= PAWN && pc <= KING;
+inline bool piece_is_ok(Piece p) {
+  return piece_type_is_ok(type_of_piece(p)) && color_is_ok(color_of_piece(p));
 }
 
-inline bool piece_is_ok(Piece pc) {
-  return piece_type_is_ok(type_of_piece(pc)) && color_is_ok(color_of_piece(pc));
+inline char piece_type_to_char(PieceType pt) {
+  static const char ch[] = " PNBRQK";
+  return ch[pt];
 }
 
-
-////
-//// Prototypes
-////
-
-extern char piece_type_to_char(PieceType pt, bool upcase = false);
-extern PieceType piece_type_from_char(char c);
-
-
 #endif // !defined(PIECE_H_INCLUDED)