From d8ed6d3af41051c2d5a7fe3f71bc0005aa0fd39e Mon Sep 17 00:00:00 2001
From: 12Me21 <12Me21.mc@gmail.com>
Date: Sat, 15 Sep 2018 10:30:13 -0400
Subject: [PATCH] Tubes now update their connections when rotated with the
 screwdriver.

---
 autoplace_tubes.lua   | 16 ++++++++++++++++
 decorative_tubes.lua  |  2 ++
 routing_tubes.lua     |  1 +
 tube_registration.lua |  1 +
 4 files changed, 20 insertions(+)

diff --git a/autoplace_tubes.lua b/autoplace_tubes.lua
index 0d28e64..a3a6aee 100644
--- a/autoplace_tubes.lua
+++ b/autoplace_tubes.lua
@@ -111,6 +111,22 @@ function pipeworks.after_dig(pos)
 	pipeworks.scan_for_tube_objects(pos)
 end
 
+-- Screwdriver calls this function before rotating a node.
+-- However, connections must be updated *after* the node is rotated
+-- So, this function does the rotation itself and returns `true`.
+-- (Note: screwdriver already checks for protected areas.)
+
+-- This should only be used for tubes that don't autoconnect.
+-- (For example, one-way tubes.)
+-- Autoconnecting tubes will just revert back to their original state
+-- when they are updated.
+function pipeworks.on_rotate(pos, node, user, mode, new_param2)
+	node.param2 = new_param2
+	minetest.set_node(pos, node)
+	pipeworks.scan_for_tube_objects(pos)
+	return true
+end
+
 if minetest.get_modpath("mesecons_mvps") then
 	mesecon.register_on_mvps_move(function(moved_nodes)
 		for _, n in ipairs(moved_nodes) do
diff --git a/decorative_tubes.lua b/decorative_tubes.lua
index 39ba8f3..2b48b6b 100644
--- a/decorative_tubes.lua
+++ b/decorative_tubes.lua
@@ -24,6 +24,7 @@ minetest.register_node("pipeworks:steel_block_embedded_tube", {
 	},
 	after_place_node = pipeworks.after_place,
 	after_dig_node = pipeworks.after_dig,
+	on_rotate = pipeworks.on_rotate,
 })
 
 minetest.register_craft( {
@@ -71,6 +72,7 @@ minetest.register_node("pipeworks:steel_pane_embedded_tube", {
 	},
 	after_place_node = pipeworks.after_place,
 	after_dig_node = pipeworks.after_dig,
+	on_rotate = pipeworks.on_rotate,
 })
 
 minetest.register_craft( {
diff --git a/routing_tubes.lua b/routing_tubes.lua
index ba9e0aa..e2f1af4 100644
--- a/routing_tubes.lua
+++ b/routing_tubes.lua
@@ -161,6 +161,7 @@ if pipeworks.enable_one_way_tube then
 		},
 		after_place_node = pipeworks.after_place,
 		after_dig_node = pipeworks.after_dig,
+		on_rotate = pipeworks.on_rotate,
 	})
 	minetest.register_craft({
 		output = "pipeworks:one_way_tube 2",
diff --git a/tube_registration.lua b/tube_registration.lua
index 48fa912..7bef10e 100644
--- a/tube_registration.lua
+++ b/tube_registration.lua
@@ -108,6 +108,7 @@ local register_one_tube = function(name, tname, dropname, desc, plain, noctrs, e
 		},
 		after_place_node = pipeworks.after_place,
 		after_dig_node = pipeworks.after_dig,
+		on_rotate = false,
 		on_blast = function(pos, intensity)
 			if not intensity or intensity > 1 + 3^0.5 then
 				minetest.remove_node(pos)