zobrist hashing

1 files changed, 16 insertions, 0 deletions

diff --git a/include/engine/transposition_table.h b/include/engine/transposition_table.h
new file mode 100644
index 0000000..f06ddbe
--- /dev/null
+++ b/include/engine/transposition_table.h
@@ -0,0 +1,16 @@
+#ifndef TRANSPOSITION_TABLE_H
+#define TRANSPOSITION_TABLE_H
+
+#include "bitboard.h"
+
+static struct zobrist_keys {
+  u64 piece[PIECE_TYPE_COUNT][64];
+  u64 castle[CASTLE_COUNT];
+  u64 turn[TURN_COUNT];
+  u64 en_passant[64];
+} zobrist_keys;
+
+void transposition_table_init();
+u64 zobrist_hash(position_t position);
+
+#endif // TRANSPOSITION_TABLE_H