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Introduce enum SquareColor

Browse source 
Square and piece colors are two different things,
so use different types to avoid misunderstandings.

Suggested by Tord.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-07-25 11:44:03 +01:00
parent 9b1d5bd534
commit 14f059072a
4 changed files with 11 additions and 6 deletions
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5
src/bitboard.cpp
View file

@ -163,7 +163,10 @@ const int RShift[64] = {
#endif // defined(IS_64BIT)
const Bitboard SquaresByColorBB[2] = { BlackSquaresBB, WhiteSquaresBB };
const Bitboard LightSquaresBB = 0x55AA55AA55AA55AAULL;
const Bitboard DarkSquaresBB = 0xAA55AA55AA55AA55ULL;
const Bitboard SquaresByColorBB[2] = { DarkSquaresBB, LightSquaresBB };
const Bitboard FileBB[8] = {
FileABB, FileBBB, FileCBB, FileDBB, FileEBB, FileFBB, FileGBB, FileHBB

3
src/bitboard.h
View file

@ -38,9 +38,6 @@
const Bitboard EmptyBoardBB = 0ULL;
const Bitboard WhiteSquaresBB = 0x55AA55AA55AA55AAULL;
const Bitboard BlackSquaresBB = 0xAA55AA55AA55AA55ULL;
const Bitboard FileABB = 0x0101010101010101ULL;
const Bitboard FileBBB = 0x0202020202020202ULL;
const Bitboard FileCBB = 0x0404040404040404ULL;

5
src/color.h
View file

@ -32,6 +32,11 @@ enum Color {
COLOR_NONE
};
enum SquareColor {
DARK,
LIGHT
};
////
//// Inline functions

4
src/square.h
View file

@ -135,8 +135,8 @@ inline Rank relative_rank(Color c, Square s) {
return square_rank(relative_square(c, s));
}
inline Color square_color(Square s) {
return Color((int(square_file(s)) + int(square_rank(s))) & 1);
inline SquareColor square_color(Square s) {
return SquareColor((int(square_file(s)) + int(square_rank(s))) & 1);
}
inline bool same_color_squares(Square s1, Square s2) {