From d119a6748264a4f9825eebdd4ddeb2421cc4784a Mon Sep 17 00:00:00 2001
From: coil <51716565+coil0@users.noreply.github.com>
Date: Mon, 26 Aug 2019 19:45:11 +0200
Subject: [PATCH] Refactor switching station ABMs (#508)

---
 technic/machines/other/constructor.lua |   19 +++++++++++++------
 1 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/technic/machines/other/constructor.lua b/technic/machines/other/constructor.lua
index 5847fdb..e7b1f67 100644
--- a/technic/machines/other/constructor.lua
+++ b/technic/machines/other/constructor.lua
@@ -99,7 +99,7 @@
 
 		if node.name == "technic:constructor_mk"..mark.."_off" then
 			technic.swap_node(pos, "technic:constructor_mk"..mark.."_on")
-			nodeupdate(pos)
+			minetest.check_for_falling(pos)
 			for i = 1, length do
 				place_pos = vector.add(place_pos, dir)
 				local place_node = minetest.get_node(place_pos)
@@ -113,11 +113,17 @@
 	return function(pos, node)
 		if node.name == "technic:constructor_mk"..mark.."_on" then
 			technic.swap_node(pos,"technic:constructor_mk"..mark.."_off")
-			nodeupdate(pos)
+			minetest.check_for_falling(pos)
 		end
 	end
 end
 
+local function allow_inventory_put(pos, listname, index, stack, player)
+	if stack and minetest.get_item_group(stack:get_name(), "technic_constructor") == 1 then
+		return 0
+	end
+	return technic.machine_inventory_put(pos, listname, index, stack, player)
+end
 
 local function make_constructor(mark, length)
 	minetest.register_node("technic:constructor_mk"..mark.."_off", {
@@ -129,7 +135,8 @@
 			"technic_constructor_back.png",
 			"technic_constructor_front_off.png"},
 		paramtype2 = "facedir",
-		groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2, mesecon = 2},
+		groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
+			mesecon = 2, technic_constructor = 1},
 		mesecons = {effector = {action_on = make_on(mark, length)}},
 		sounds = default.node_sound_stone_defaults(),
 		on_construct = function(pos)
@@ -160,7 +167,7 @@
 			end
 			return true
 		end,
-		allow_metadata_inventory_put = technic.machine_inventory_put,
+		allow_metadata_inventory_put = allow_inventory_put,
 		allow_metadata_inventory_take = technic.machine_inventory_take,
 		allow_metadata_inventory_move = technic.machine_inventory_move,
 		on_rotate = screwdriver.rotate_simple
@@ -176,10 +183,10 @@
 		paramtype2 = "facedir",
 		drop = "technic:constructor_mk"..mark.."_off",
 		groups = {snappy=2, choppy=2, oddly_breakable_by_hand=2,
-			mesecon=2, not_in_creative_inventory=1},
+			mesecon=2, not_in_creative_inventory=1, technic_constructor=1},
 		mesecons= {effector = {action_off = make_off(mark)}},
 		sounds = default.node_sound_stone_defaults(),
-		allow_metadata_inventory_put = technic.machine_inventory_put,
+		allow_metadata_inventory_put = allow_inventory_put,
 		allow_metadata_inventory_take = technic.machine_inventory_take,
 		allow_metadata_inventory_move = technic.machine_inventory_move,
 		on_rotate = false

--
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