From ed013362e3e906c8c9c9c6da67c17d3073785159 Mon Sep 17 00:00:00 2001
From: SzilBalazs <szilprogramming@gmail.com>
Date: Tue, 15 Aug 2023 11:41:55 +0200
Subject: [PATCH] Add move overhead uci option

Bench: 2134743
---
 src/chess/constants.h     | 1 -
 src/main.cpp              | 1 +
 src/search/time_manager.h | 3 +++
 src/uci/uci.h             | 6 ++++++
 4 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/chess/constants.h b/src/chess/constants.h
index 1049195..9b92610 100644
--- a/src/chess/constants.h
+++ b/src/chess/constants.h
@@ -38,7 +38,6 @@ using Ply = int8_t;
 
 constexpr int64_t INF_TIME = 1'000'000'000'000'000;
 constexpr int64_t INF_NODES = 1'000'000'000'000'000;
-constexpr int64_t MOVE_OVERHEAD = 30;
 constexpr Score UNKNOWN_SCORE = 300000;
 constexpr Score INF_SCORE = 200000;
 constexpr Score MATE_VALUE = 100000;
diff --git a/src/main.cpp b/src/main.cpp
index eeeddc4..39e7677 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -34,6 +34,7 @@ namespace chess {
 
 namespace search {
     Depth lmr_reductions[200][MAX_PLY + 1];
+    int64_t TimeManager::MOVE_OVERHEAD = 30;
 }
 
 void init_all() {
diff --git a/src/search/time_manager.h b/src/search/time_manager.h
index cc59c6c..badb92a 100644
--- a/src/search/time_manager.h
+++ b/src/search/time_manager.h
@@ -22,6 +22,9 @@
 namespace search {
     class TimeManager {
     public:
+
+        static int64_t MOVE_OVERHEAD;
+
         /**
          * Initializes time management with the given limits.
          *
diff --git a/src/uci/uci.h b/src/uci/uci.h
index f8daca0..57a309a 100644
--- a/src/uci/uci.h
+++ b/src/uci/uci.h
@@ -173,6 +173,12 @@ namespace uci {
                 },
                 1, 128);
 
+        options.emplace_back(
+                "Move_Overhead", "30", "spin", [&]() {
+                    search::TimeManager::MOVE_OVERHEAD = get_option<int>("Move_Overhead");
+                },
+                0, 1000);
+
         options.emplace_back(
                 "UCI_ShowWDL", "false", "check", [&]() {
                     search::report::set_show_wdl(get_option<bool>("UCI_ShowWDL"));