From faa944193a1b3e14392f12bca0d1f53e9d2d9b23 Mon Sep 17 00:00:00 2001
From: kay27 <kay27@bk.ru>
Date: Tue, 5 Jan 2021 23:30:59 +0400
Subject: [PATCH] try to fix
 https://git.minetest.land/Wuzzy/MineClone2/issues/963

---
 mods/ENTITIES/mcl_mobs/api.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mods/ENTITIES/mcl_mobs/api.lua b/mods/ENTITIES/mcl_mobs/api.lua
index 8b86e4b98..0f5f59ae8 100644
--- a/mods/ENTITIES/mcl_mobs/api.lua
+++ b/mods/ENTITIES/mcl_mobs/api.lua
@@ -276,8 +276,11 @@ end
 local get_velocity = function(self)
 
 	local v = self.object:get_velocity()
+	if v then
+		return (v.x * v.x + v.z * v.z) ^ 0.5
+	end
 
-	return (v.x * v.x + v.z * v.z) ^ 0.5
+	return 0
 end