From dcd030c6ed41e080846d1d50cf82e1055ae48edd Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Fri, 15 Sep 2017 20:46:56 +0500
Subject: 2017-09-15

---
 src/Block.cpp | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/Block.cpp')

diff --git a/src/Block.cpp b/src/Block.cpp
index 840dbcf..667670d 100644
--- a/src/Block.cpp
+++ b/src/Block.cpp
@@ -8,4 +8,8 @@ Block::Block() : id(0), state(0), light(0), sky(0) {}
 
 bool operator==(const BlockId& lhs, const BlockId &rhs) {
     return (lhs.id == rhs.id) && (lhs.state == rhs.state);
+}
+
+bool operator<(const BlockId& lhs, const BlockId &rhs) {
+    return (lhs.id < rhs.id);
 }
\ No newline at end of file
-- 
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