From 67fba86142da3c188ccede6c9403afbc2cd72ea1 Mon Sep 17 00:00:00 2001
From: mekolat <mekolat@users.noreply.github.com>
Date: Thu, 12 May 2016 15:32:49 -0400
Subject: add undefined_gat check to npc_propagate_update()

---
 src/map/npc.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src')

diff --git a/src/map/npc.cpp b/src/map/npc.cpp
index 3eb13b3..2600117 100644
--- a/src/map/npc.cpp
+++ b/src/map/npc.cpp
@@ -1052,6 +1052,9 @@ void npc_free_internal(dumb_ptr<npc_data> nd_)
 static
 void npc_propagate_update(dumb_ptr<npc_data> nd)
 {
+    if (nd->bl_m == borrow(undefined_gat))
+        return;
+
     int xs = 0, ys = 0;
     if (dumb_ptr<npc_data_script> nd_ = nd->is_script())
     {
-- 
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