Move methods from Board to BitBoard

2022-12-22 01:35:37 +01:00
parent a1d4dadaa2
commit 84afaa2ada
4 changed files with 143 additions and 109 deletions
--- a/BitBoard.cpp
+++ b/BitBoard.cpp
@@ -23,4 +23,11 @@ std::ostream &operator<<(std::ostream &os, const BitBoard &board) {
    }

    return os;
-}
+}
+
+BitBoard BitBoard::getRank(int r) {
+    return (genShift(1ULL, (r + 1) * 8) - 1) & genShift(~1ULL, r * 8 - 1);
+}
+BitBoard BitBoard::genShift(BitBoard x, const int s) {
+    return (s < 0) ? (x >> -s) : (s > 63) ? x : (x << s);
+}