From 07a7f2fffa405a94cc997a15b76e527829af78f8 Mon Sep 17 00:00:00 2001
From: Joachim Stolberg <joe.stolberg@gmx.de>
Date: Sun, 12 Jun 2022 18:34:06 +0200
Subject: [PATCH] Fix chest chain bug

---
 basic_machines/ta4_chest.lua | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/basic_machines/ta4_chest.lua b/basic_machines/ta4_chest.lua
index fac0ee2..49bdb83 100644
--- a/basic_machines/ta4_chest.lua
+++ b/basic_machines/ta4_chest.lua
@@ -336,12 +336,17 @@ local function count_number_of_chests(pos)
 	local node = techage.get_node_lvm(pos)
 	local dir = techage.side_to_outdir("B", node.param2)
 	local pos1 = tubelib2.get_pos(pos, dir)
+	local param2 = node.param2
 	local cnt = 1
 	while cnt < 50 do
 		node = techage.get_node_lvm(pos1)
 		if node.name ~= "techage:ta4_chest_dummy" then
 			break
 		end
+		local meta = M(pos1)
+		if meta:contains("param2") and meta:get_int("param2") ~= param2 then
+			break
+		end
 		pos1 = tubelib2.get_pos(pos1, dir)
 		cnt = cnt + 1
 	end
@@ -351,12 +356,17 @@ end
 local function search_chest_in_front(pos, node)
 	local dir = techage.side_to_outdir("F", node.param2)
 	local pos1 = tubelib2.get_pos(pos, dir)
+	local param2 = node.param2
 	local cnt = 1
 	while cnt < 50 do
 		node = techage.get_node_lvm(pos1)
 		if node.name ~= "techage:ta4_chest_dummy" then
 			break
 		end
+		local meta = M(pos1)
+		if meta:contains("param2") and meta:get_int("param2") ~= param2 then
+			break
+		end
 		pos1 = tubelib2.get_pos(pos1, dir)
 		cnt = cnt + 1
 	end
@@ -529,6 +539,7 @@ minetest.register_node("techage:ta4_chest", {
 		if search_chest_in_front(pos, node) then
 			node.name = "techage:ta4_chest_dummy"
 			minetest.swap_node(pos, node)
+			M(pos):set_int("param2", node.param2)
 		else
 			local nvm = techage.get_nvm(pos)
 			gen_inv(nvm)