From f36fba17d9fdc0d3e4068e573be53d373dd232f3 Mon Sep 17 00:00:00 2001
From: sigmasternchen <git@sigma-star.io>
Date: Sun, 27 Oct 2024 12:49:29 +0100
Subject: [PATCH] fix: Current side stays the same on apply in place

---
 src/Game/Game.php       |  1 +
 tests/Game/GameTest.php | 21 +++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/src/Game/Game.php b/src/Game/Game.php
index 285c0e7..ddb37b3 100644
--- a/src/Game/Game.php
+++ b/src/Game/Game.php
@@ -319,6 +319,7 @@ class Game {
         }
 
         $this->current = $this->current->getNext();
+        $this->moveCache = null;
 
         $this->history->add($this);
     }
diff --git a/tests/Game/GameTest.php b/tests/Game/GameTest.php
index ff1241d..9f99dc5 100644
--- a/tests/Game/GameTest.php
+++ b/tests/Game/GameTest.php
@@ -875,4 +875,25 @@ final class GameTest extends TestCase {
             array_map(fn($p) => $p->getPosition()->file, $kings),
         );
     }
+
+    public function testBug_moveCacheNotClearedOnApplyInPlace() {
+        $subject = new Game(
+            [
+                new King(new Position(0, 7), Side::BLACK),
+                new King(new Position(0, 0), Side::WHITE),
+            ],
+            Side::WHITE
+        );
+
+        $this->assertEquals(Side::WHITE, $subject->getCurrentSide());
+
+        $moves = $subject->getLegalMoves();
+        $this->assertEquals(Side::WHITE, $moves[0]->getPiece()->getSide());
+        $subject->applyInPlace($moves[0]);
+
+        $this->assertEquals(Side::BLACK, $subject->getCurrentSide());
+
+        $moves = $subject->getLegalMoves();
+        $this->assertEquals(Side::BLACK, $moves[0]->getPiece()->getSide());
+    }
 }
\ No newline at end of file