1 files changed, 13 insertions, 4 deletions

diff --git a/src/world/Block.cpp b/src/world/Block.cpp
index 64e5330..3cf09db 100644
--- a/src/world/Block.cpp
+++ b/src/world/Block.cpp
@@ -2,9 +2,18 @@
 
 Block::~Block() {}
 
-Block::Block(unsigned short idAndState, unsigned char light) : id(idAndState >> 4), state(idAndState & 0x0F),
-                                                               light(light) {}
+Block::Block(unsigned short idAndState, unsigned char light) : id(idAndState >> 4), state(idAndState & 0x0F) {}
 
-Block::Block(unsigned short id, unsigned char state, unsigned char light) : id(id), state(state), light(light) {}
+Block::Block(unsigned short id, unsigned char state, unsigned char light) : id(id), state(state) {}
 
-Block::Block() : id(0), state(0), light(0) {}
+Block::Block() : id(0), state(0) {}
+
+bool operator<(const Block &lhs, const Block &rhs) {
+    if (lhs.id < rhs.id)
+        return true;
+    if (lhs.id == rhs.id) {
+        if (lhs.state != rhs.state)
+            return lhs.state < rhs.state;
+    }
+    return false;
+}