From f9242cf965efa5f5d39db08525cf4f8becbd9965 Mon Sep 17 00:00:00 2001
From: xiaoou <your_email@example.com>
Date: Sat, 4 Jul 2026 11:49:31 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BA=BA=E7=B1=BB=E7=8E=A9=E5=AE=B6?=
 =?UTF-8?q?=E6=98=BE=E7=A4=BA=E6=91=B8=E5=88=B0=E7=9A=84=E7=89=8C=20(LastD?=
 =?UTF-8?q?rawnTile=20+=20=E7=AE=AD=E5=A4=B4=E9=AB=98=E4=BA=AE)?=
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- GameState新增LastDrawnTile字段
- StepTurn摸牌时记录LastDrawnTile
- HumanMahjongPlayer显示'刚刚摸到:X'并用→←箭头标记新牌
- 庄家首轮LastDrawnTile清空
---
 RuleEngine/AI/HumanMahjongPlayer.cs | 11 ++++++++++-
 RuleEngine/Core/GameState.cs        |  1 +
 RuleEngine/MahjongRoom.cs           |  5 ++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/RuleEngine/AI/HumanMahjongPlayer.cs b/RuleEngine/AI/HumanMahjongPlayer.cs
index b3b8438..e68f336 100644
--- a/RuleEngine/AI/HumanMahjongPlayer.cs
+++ b/RuleEngine/AI/HumanMahjongPlayer.cs
@@ -21,13 +21,22 @@ public class HumanMahjongPlayer
         var hand = state.Hands.GetValueOrDefault(Name, new List<int>());
         var sorted = hand.OrderBy(t => t).ToList();
 
+        // Highlight last drawn tile
+        int? drawnTile = state.LastDrawnTile;
+        int drawnIdx = drawnTile.HasValue ? sorted.IndexOf(drawnTile.Value) : -1;
+
         while (true)
         {
             Console.WriteLine();
             Console.WriteLine($"=== {Name} 的回合 ===");
+            if (drawnTile.HasValue && drawnIdx >= 0)
+                Console.WriteLine($"  🀫 刚刚摸到: {MahjongTile.ToString(drawnTile.Value)}");
             Console.WriteLine($"手牌 ({hand.Count}张):");
             for (int i = 0; i < sorted.Count; i++)
-                Console.WriteLine($"  [{i + 1}] {MahjongTile.ToString(sorted[i])}");
+            {
+                bool isDrawn = (i == drawnIdx);
+                Console.WriteLine($"  [{i + 1}] {(isDrawn ? "→ " : "  ")}{MahjongTile.ToString(sorted[i])}{(isDrawn ? " ← 新摸" : "")}");
+            }
             Console.WriteLine();
 
             // Show available actions
diff --git a/RuleEngine/Core/GameState.cs b/RuleEngine/Core/GameState.cs
index 34fdd2e..e85808a 100644
--- a/RuleEngine/Core/GameState.cs
+++ b/RuleEngine/Core/GameState.cs
@@ -31,6 +31,7 @@ public class MahjongGameState
     public bool IsDeckExhausted { get; set; }
     public List<GameEvent> RecentEvents { get; set; } = new();
     public int FlowerReplaced { get; set; }
+    public int? LastDrawnTile { get; set; }
 
     public MahjongGameState Clone()
     {
diff --git a/RuleEngine/MahjongRoom.cs b/RuleEngine/MahjongRoom.cs
index b7517cc..88c4de9 100644
--- a/RuleEngine/MahjongRoom.cs
+++ b/RuleEngine/MahjongRoom.cs
@@ -135,13 +135,16 @@ public class MahjongRoom
 
         // Phase 2: Draw card (skip for dealer on first turn — they already have 14)
         bool isDealerFirstTurn = (player == State.Dealer && State.RoundNumber == 0);
-        if (!isDealerFirstTurn)
+        if (isDealerFirstTurn)
+            State.LastDrawnTile = null;
+        else
         {
         if (State.Deck.Count > 0)
         {
             int drawn = State.Deck[^1];
             State.Deck.RemoveAt(State.Deck.Count - 1);
             State.Hands[player].Add(drawn);
+            State.LastDrawnTile = drawn;
             State.AddEvent("draw", player, drawn,
                 $"摸牌: {MahjongTile.ToString(drawn)}");