ttable lookup & probe

1 files changed, 0 insertions, 44 deletions

diff --git a/src/engine/transposition_table.c b/src/engine/transposition_table.c
deleted file mode 100644
index 1afbc81..0000000
--- a/src/engine/transposition_table.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include "engine/transposition_table.h"
-
-void transposition_table_init() {
-  for (int i = 0; i < PIECE_TYPE_COUNT; i++) {
-    for (int j = 0; j < 64; j++) {
-      zobrist_keys.piece[i][j] = random_u64();
-    }
-  }
-  for (int i = 0; i < CASTLE_COUNT; i++) {
-    zobrist_keys.castle[i] = random_u64();
-  }
-  for (int i = 0; i < TURN_COUNT; i++) {
-    zobrist_keys.turn[i] = random_u64();
-  }
-  for (int i = 0; i < 64; i++) {
-    zobrist_keys.en_passant[i] = random_u64();
-  }
-}
-
-u64 zobrist_hash(position_t position) {
-  u64 output = 0;
-  for (int i = 0; i < 64; i++) {
-    int piece_type = find_piece_on_square(&position, i);
-    output ^= zobrist_keys.piece[piece_type][i];
-  }
-
-  if (position.castling & WHITE_SHORT_CASTLE) {
-    output ^= zobrist_keys.castle[0];
-  }
-  if (position.castling & WHITE_LONG_CASTLE) {
-    output ^= zobrist_keys.castle[1];
-  }
-  if (position.castling & BLACK_SHORT_CASTLE) {
-    output ^= zobrist_keys.castle[2];
-  }
-  if (position.castling & BLACK_LONG_CASTLE) {
-    output ^= zobrist_keys.castle[3];
-  }
-
-  output ^= zobrist_keys.turn[position.turn];
-  output ^= zobrist_keys.en_passant[position.passantable_file];
-
-  return output;
-}