From 987cc5a6a425b1f9bcd9000608dc389a45c675a1 Mon Sep 17 00:00:00 2001
From: you <ovvv@web.de>
Date: Mon, 05 Jun 2017 16:51:59 +0200
Subject: [PATCH] Add api documentation (#361)

---
 technic/machines/register/common.lua |   29 ++++++++++++++++++++++++-----
 1 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/technic/machines/register/common.lua b/technic/machines/register/common.lua
index 6d4c066..dfa2948 100644
--- a/technic/machines/register/common.lua
+++ b/technic/machines/register/common.lua
@@ -138,19 +138,38 @@
 	meta:set_int("tube_time", tube_time)
 end
 
-
 function technic.machine_can_dig(pos, player)
 	local meta = minetest.get_meta(pos)
 	local inv = meta:get_inventory()
-	if not inv:is_empty("src") or not inv:is_empty("dst") or
-	   not inv:is_empty("upgrade1") or not inv:is_empty("upgrade2") then
+	if not inv:is_empty("src") or not inv:is_empty("dst") then
 		if player then
 			minetest.chat_send_player(player:get_player_name(),
 				S("Machine cannot be removed because it is not empty"))
 		end
 		return false
-	else
-		return true
+	end
+
+	return true
+end
+
+function technic.machine_after_dig_node(pos, oldnode, oldmetadata, player)
+	if oldmetadata.inventory then
+		if oldmetadata.inventory.upgrade1 and oldmetadata.inventory.upgrade1[1] then
+			local stack = ItemStack(oldmetadata.inventory.upgrade1[1])
+			if not stack:is_empty() then
+				minetest.add_item(pos, stack)
+			end
+		end
+		if oldmetadata.inventory.upgrade2 and oldmetadata.inventory.upgrade2[1] then
+			local stack = ItemStack(oldmetadata.inventory.upgrade2[1])
+			if not stack:is_empty() then
+				minetest.add_item(pos, stack)
+			end
+		end
+	end
+
+	if minetest.registered_nodes[oldnode.name].tube then
+		pipeworks.after_dig(pos, oldnode, oldmetadata, player)
 	end
 end
 

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