From 6fdda1839064684f77c9ea7f3e087a2d3d6fa388 Mon Sep 17 00:00:00 2001
From: SmallJoker <mk939@ymail.com>
Date: Sat, 4 Aug 2018 12:27:09 +0200
Subject: [PATCH] Handle nil return value for add_item

Remove old comments. Current HEAD requires version ~0.4.16
---
 item_transport.lua | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/item_transport.lua b/item_transport.lua
index 388e2e7..d3a13c5 100644
--- a/item_transport.lua
+++ b/item_transport.lua
@@ -350,8 +350,10 @@ luaentity.register_entity("pipeworks:tubed_item", {
 					-- compatible with Minetest 0.4.13.
 					-- Using item_drop here makes Minetest 0.4.13 crash.
 					local dropped_item = minetest.add_item(self.start_pos, stack)
-					dropped_item:set_velocity(vector.multiply(velocity, 5))
-					self:remove()
+					if dropped_item then
+						dropped_item:set_velocity(vector.multiply(velocity, 5))
+						self:remove()
+					end
 					return
 				else
 					velocity = vector.multiply(velocity, -1)