From 0352866b1ab1c6da3ac230479c4ebe8493ed71d0 Mon Sep 17 00:00:00 2001
From: JialianLee <Jialian@DESKTOP-N4N6F2G.localdomain>
Date: Thu, 28 Dec 2017 16:27:28 +0800
Subject: [PATCH] Modification for game engine

---
 tianshou/core/mcts/unit_test/ZOGame.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tianshou/core/mcts/unit_test/ZOGame.py b/tianshou/core/mcts/unit_test/ZOGame.py
index 8a2ed54..acad284 100644
--- a/tianshou/core/mcts/unit_test/ZOGame.py
+++ b/tianshou/core/mcts/unit_test/ZOGame.py
@@ -17,6 +17,10 @@ class ZOTree:
             seq.append(int(action))
             return [seq, 0 - color], 0
 
+    def simulate_hashable_conversion(self, state):
+        # since go is MDP, we only need the last board for hashing
+        return tuple(state[0])
+    
     def executor_get_reward(self, state):
         seq = np.array(state[0], dtype='int16')
         length = len(seq)