From 40e7645a43256d5d90b90872c22caabd496a3de6 Mon Sep 17 00:00:00 2001
From: stujones11 <stujones111@gmail.com>
Date: Mon, 2 Jun 2014 19:11:58 +0100
Subject: [PATCH] Prevent indexing a nil item

---
 shooter.lua | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/shooter.lua b/shooter.lua
index f4b574c..2fbaa4a 100644
--- a/shooter.lua
+++ b/shooter.lua
@@ -55,7 +55,10 @@ local function punch_node(pos, def)
 		return
 	end
 	local item = minetest.registered_items[node.name]
-	if item and item.groups then
+	if not item then
+		return
+	end
+	if item.groups then
 		for k, v in pairs(def.groups) do
 			local level = item.groups[k] or 0
 			if level >= v then