From 437cf879808fb68a79e7f8325615737f86f434be Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Sat, 23 Sep 2017 20:55:08 +0500
Subject: 2017-09-23

---
 src/Block.hpp | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'src/Block.hpp')

diff --git a/src/Block.hpp b/src/Block.hpp
index c3dfcec..12d2907 100644
--- a/src/Block.hpp
+++ b/src/Block.hpp
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <functional>
+
 struct Block {
 	Block();
 
@@ -20,4 +22,17 @@ struct BlockId {
 
 bool operator==(const BlockId& lhs, const BlockId &rhs);
 
-bool operator<(const BlockId& lhs, const BlockId &rhs);
\ No newline at end of file
+bool operator<(const BlockId& lhs, const BlockId &rhs);
+
+namespace std {
+    template <>
+    struct hash<BlockId> {
+        std::size_t operator()(const BlockId& k) const
+        {
+            size_t id = std::hash<unsigned short>()(k.id);
+            size_t state = std::hash<unsigned char>()(k.state);
+
+            return (id & state << 1);
+        }
+    };
+}
\ No newline at end of file
-- 
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