-\r
-// piece.h\r
-\r
-#ifndef PIECE_H\r
-#define PIECE_H\r
-\r
-// includes\r
-\r
-#include "colour.h"\r
-#include "util.h"\r
-\r
-// constants\r
-\r
-const int BlackPawnFlag = 1 << 2;\r
-const int WhitePawnFlag = 1 << 3;\r
-const int KnightFlag = 1 << 4;\r
-const int BishopFlag = 1 << 5;\r
-const int RookFlag = 1 << 6;\r
-const int KingFlag = 1 << 7;\r
-\r
-const int PawnFlags = BlackPawnFlag | WhitePawnFlag;\r
-const int QueenFlags = BishopFlag | RookFlag;\r
-\r
-const int PieceNone64 = 0;\r
-const int BlackPawn64 = BlackPawnFlag;\r
-const int WhitePawn64 = WhitePawnFlag;\r
-const int Knight64 = KnightFlag;\r
-const int Bishop64 = BishopFlag;\r
-const int Rook64 = RookFlag;\r
-const int Queen64 = QueenFlags;\r
-const int King64 = KingFlag;\r
-\r
-const int PieceNone256 = 0;\r
-const int BlackPawn256 = BlackPawn64 | Black;\r
-const int WhitePawn256 = WhitePawn64 | White;\r
-const int BlackKnight256 = Knight64 | Black;\r
-const int WhiteKnight256 = Knight64 | White;\r
-const int BlackBishop256 = Bishop64 | Black;\r
-const int WhiteBishop256 = Bishop64 | White;\r
-const int BlackRook256 = Rook64 | Black;\r
-const int WhiteRook256 = Rook64 | White;\r
-const int BlackQueen256 = Queen64 | Black;\r
-const int WhiteQueen256 = Queen64 | White;\r
-const int BlackKing256 = King64 | Black;\r
-const int WhiteKing256 = King64 | White;\r
-\r
-const int BlackPawn12 = 0;\r
-const int WhitePawn12 = 1;\r
-const int BlackKnight12 = 2;\r
-const int WhiteKnight12 = 3;\r
-const int BlackBishop12 = 4;\r
-const int WhiteBishop12 = 5;\r
-const int BlackRook12 = 6;\r
-const int WhiteRook12 = 7;\r
-const int BlackQueen12 = 8;\r
-const int WhiteQueen12 = 9;\r
-const int BlackKing12 = 10;\r
-const int WhiteKing12 = 11;\r
-\r
-// functions\r
-\r
-extern void piece_init ();\r
-\r
-extern bool piece_is_ok (int piece);\r
-\r
-extern int piece_make_pawn (int colour);\r
-extern int piece_pawn_opp (int piece);\r
-\r
-extern int piece_colour (int piece);\r
-extern int piece_type (int piece);\r
-\r
-extern bool piece_is_pawn (int piece);\r
-extern bool piece_is_knight (int piece);\r
-extern bool piece_is_bishop (int piece);\r
-extern bool piece_is_rook (int piece);\r
-extern bool piece_is_queen (int piece);\r
-extern bool piece_is_king (int piece);\r
-\r
-extern bool piece_is_slider (int piece);\r
-\r
-extern int piece_to_12 (int piece);\r
-extern int piece_from_12 (int piece);\r
-\r
-extern int piece_to_char (int piece);\r
-extern int piece_from_char (int c);\r
-\r
-extern bool char_is_piece (int c);\r
-\r
-#endif // !defined PIECE_H\r
-\r
-// end of piece.h\r
-\r
+
+// piece.h
+
+#ifndef PIECE_H
+#define PIECE_H
+
+// includes
+
+#include "colour.h"
+#include "util.h"
+
+// defines
+
+#define BlackPawnFlag (1 << 2)
+#define WhitePawnFlag (1 << 3)
+#define KnightFlag (1 << 4)
+#define BishopFlag (1 << 5)
+#define RookFlag (1 << 6)
+#define KingFlag (1 << 7)
+
+#define PawnFlags (BlackPawnFlag | WhitePawnFlag)
+#define QueenFlags (BishopFlag | RookFlag)
+
+#define PieceNone64 (0)
+#define BlackPawn64 (BlackPawnFlag)
+#define WhitePawn64 (WhitePawnFlag)
+#define Knight64 (KnightFlag)
+#define Bishop64 (BishopFlag)
+#define Rook64 (RookFlag)
+#define Queen64 (QueenFlags)
+#define King64 (KingFlag)
+
+#define PieceNone256 (0)
+#define BlackPawn256 (BlackPawn64 | Black)
+#define WhitePawn256 (WhitePawn64 | White)
+#define BlackKnight256 (Knight64 | Black)
+#define WhiteKnight256 (Knight64 | White)
+#define BlackBishop256 (Bishop64 | Black)
+#define WhiteBishop256 (Bishop64 | White)
+#define BlackRook256 (Rook64 | Black)
+#define WhiteRook256 (Rook64 | White)
+#define BlackQueen256 (Queen64 | Black)
+#define WhiteQueen256 (Queen64 | White)
+#define BlackKing256 (King64 | Black)
+#define WhiteKing256 (King64 | White)
+
+#define BlackPawn12 (0)
+#define WhitePawn12 (1)
+#define BlackKnight12 (2)
+#define WhiteKnight12 (3)
+#define BlackBishop12 (4)
+#define WhiteBishop12 (5)
+#define BlackRook12 (6)
+#define WhiteRook12 (7)
+#define BlackQueen12 (8)
+#define WhiteQueen12 (9)
+#define BlackKing12 (10)
+#define WhiteKing12 (11)
+
+// functions
+
+extern void piece_init ();
+
+extern bool piece_is_ok (int piece);
+
+extern int piece_make_pawn (int colour);
+extern int piece_pawn_opp (int piece);
+
+extern int piece_colour (int piece);
+extern int piece_type (int piece);
+
+extern bool piece_is_pawn (int piece);
+extern bool piece_is_knight (int piece);
+extern bool piece_is_bishop (int piece);
+extern bool piece_is_rook (int piece);
+extern bool piece_is_queen (int piece);
+extern bool piece_is_king (int piece);
+
+extern bool piece_is_slider (int piece);
+
+extern int piece_to_12 (int piece);
+extern int piece_from_12 (int piece);
+
+extern int piece_to_char (int piece);
+extern int piece_from_char (int c);
+
+extern bool char_is_piece (int c);
+
+#endif // !defined PIECE_H
+
+// end of piece.h
+