Use a Direction enum for Square deltas

[stockfish] / src / psqt.cpp

diff --git a/src/psqt.cpp b/src/psqt.cpp
index 0d16b1c382851fa0b7da05692e603917c6b470d9..e8d3aaf395e33a336132742a48695b12cc803efc 100644 (file)
--- a/src/psqt.cpp
+++ b/src/psqt.cpp
@@ -116,7 +116,7 @@ void init() {
 
       for (Square s = SQ_A1; s <= SQ_H8; ++s)
       {
 
       for (Square s = SQ_A1; s <= SQ_H8; ++s)
       {

-          File f = std::min(file_of(s), FILE_H - file_of(s));
+          File f = std::min(file_of(s), ~file_of(s));

           psq[ pc][ s] = v + Bonus[pc][rank_of(s)][f];
           psq[~pc][~s] = -psq[pc][s];
       }
           psq[ pc][ s] = v + Bonus[pc][rank_of(s)][f];
           psq[~pc][~s] = -psq[pc][s];
       }