Chess: Add support for UCI engines

2 files changed, 7 insertions, 1 deletions

diff --git a/Libraries/LibChess/Chess.cpp b/Libraries/LibChess/Chess.cpp
index 28249c6956..7495acf0fb 100644
--- a/Libraries/LibChess/Chess.cpp
+++ b/Libraries/LibChess/Chess.cpp
@@ -385,10 +385,13 @@ bool Board::apply_illegal_move(const Move& move, Colour colour)
 {
     Board clone = *this;
     clone.m_previous_states = {};
+    clone.m_moves = {};
     auto state_count = 0;
     if (m_previous_states.contains(clone))
         state_count = m_previous_states.get(clone).value();
+
     m_previous_states.set(clone, state_count + 1);
+    m_moves.append(move);
 
     m_turn = opposing_colour(colour);
 
diff --git a/Libraries/LibChess/Chess.h b/Libraries/LibChess/Chess.h
index efb43d3315..2e9c078f78 100644
--- a/Libraries/LibChess/Chess.h
+++ b/Libraries/LibChess/Chess.h
@@ -31,6 +31,7 @@
 #include <AK/Optional.h>
 #include <AK/StringView.h>
 #include <AK/Traits.h>
+#include <AK/Vector.h>
 
 namespace Chess {
 
@@ -136,7 +137,8 @@ public:
     void generate_moves(Callback callback, Colour colour = Colour::None) const;
     Result game_result() const;
 
-    Colour turn() const { return m_turn; };
+    Colour turn() const { return m_turn; }
+    const Vector<Move>& moves() const { return m_moves; }
 
     bool operator==(const Board& other) const;
 
@@ -155,6 +157,7 @@ private:
     bool m_black_can_castle_queenside { true };
 
     HashMap<Board, int> m_previous_states;
+    Vector<Move> m_moves;
     friend struct AK::Traits<Board>;
 };