From 2f512931427121ea287cf2812ddf0b3fd6d7b83c Mon Sep 17 00:00:00 2001
From: Adam <adammegarules1@gmail.com>
Date: Wed, 29 Jul 2026 11:16:11 +0200
Subject: saving cache to dish

---
 src/uci.cpp | 38 ++++++++++++++++++++++++++++++++++----
 1 file changed, 34 insertions(+), 4 deletions(-)

(limited to 'src/uci.cpp')

diff --git a/src/uci.cpp b/src/uci.cpp
index b45df57..310d31c 100644
--- a/src/uci.cpp
+++ b/src/uci.cpp
@@ -7,6 +7,7 @@
 #include <algorithm>
 #include <cassert>
 #include <cctype>
+#include <cstdint>
 #include <iostream>
 #include <print>
 #include <sstream>
@@ -17,11 +18,40 @@
 #include <iomanip>
 #include <unordered_map>
 
-std::ofstream uciLog("uci_log.txt", std::ios::app);
+std::ofstream uciLog("cache/uci_log.txt", std::ios::app);
+
+bool LoadTable(
+    const std::string &filename,
+    std::unordered_map<uint64_t, TranspositionsEntry> *transpositions) {
+  std::ifstream file(filename);
+
+  if (!file.is_open())
+    return false;
+
+  uint64_t hash;
+  int depth;
+  float eval;
+
+  while (file >> hash >> depth >> eval) {
+    transpositions->operator[](hash) = {depth, eval};
+  }
+
+  return true;
+}
+void SaveTranspositionTable(
+    const std::unordered_map<uint64_t, TranspositionsEntry> &table) {
+
+  std::ofstream file("cache/positions.txt", std::ios::trunc);
+
+  for (const auto &[key, value] : table) {
+    file << key << ' ' << value.depth << ' ' << value.Eval << '\n';
+  }
+};
 
 void LogUci(const std::string &message) {
-  if (!uciLog.is_open())
+  if (!uciLog.is_open()) {
     return;
+  }
 
   auto now = std::chrono::system_clock::now();
   auto time = std::chrono::system_clock::to_time_t(now);
@@ -76,7 +106,7 @@ void Uci() {
   Game game =
       initBoard("rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1",
                 &transpositions);
-
+  LoadTable("cache/positions.txt", &transpositions);
   string line;
 
   while (getline(cin, line)) {
@@ -122,7 +152,7 @@ void Uci() {
         }
       }
       println();
-
+      SaveTranspositionTable(transpositions);
       cout.flush();
     } else if (cmd.starts_with("position")) {
       stringstream ss(line);
-- 
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