From 9b0ff171018383e4870087da98f7f64dab2c1353 Mon Sep 17 00:00:00 2001
From: tenplus1 <kinsellaja@yahoo.com>
Date: Sat, 11 Apr 2020 17:51:15 +0100
Subject: [PATCH] add sanity check to do_punch

---
 api.lua | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/api.lua b/api.lua
index e38c04b..4778d5c 100644
--- a/api.lua
+++ b/api.lua
@@ -2783,6 +2783,10 @@ function mob_class:on_punch(hitter, tflp, tool_capabilities, dir)
 	and tflp >= punch_interval then
 
 		local v = self.object:get_velocity()
+
+		-- sanity check
+		if not v then return end
+
 		local kb = damage or 1
 		local up = 2