fix wrench duplication (#117)

Co-authored-by: BuckarooBanzay <[email protected]>

Author: BuckarooBanzay

.luacheckrc

@@ -21,6 +21,7 @@ read_globals = {
 	"doc",
 	"intllib",
 	"fakelib",
+	"wrench"
 }
 
 files = {

nodes/node_builders.lua

@@ -7,6 +7,8 @@ local S = digtron.S
 
 local node_inventory_table = {type="node"} -- a reusable parameter for get_inventory calls, set the pos parameter before using.
 
+local has_wrench_mod = minetest.get_modpath("wrench")
+
 local displace_due_to_help_button = 1.0
 if minetest.get_modpath("doc") then
 	displace_due_to_help_button = 0.0
@@ -70,6 +72,15 @@ local builder_on_rightclick = function(pos, _, clicker, itemstack, pointed_thing
 		builder_formspec(pos, meta))
 end
 
+local function sanitize_item(item)
+	-- check if the item can be "wrenched"
+	if has_wrench_mod and wrench.registered_nodes[item:get_name()] then
+		-- item can be "wrenched" (contains the inventory serialized in the "data" field)
+		-- remove the serialized data on the placed node
+		item:get_meta():set_string("data", "")
+	end
+end
+
 minetest.register_on_player_receive_fields(function(sender, formname, fields)
 
 	if formname:sub(1, 15) ~= "digtron:builder" then
@@ -277,7 +288,10 @@ minetest.register_node("digtron:builder", {
 
 		node_inventory_table.pos = pos
 		local inv = minetest.get_inventory(node_inventory_table)
-		inv:set_stack(listname, index, stack:take_item(1))
+		local item = stack:take_item(1)
+		sanitize_item(item)
+
+		inv:set_stack(listname, index, item)
 
 		-- If we're adding a wallmounted item and the build facing is greater than 5, reset it to 0
 		local meta = minetest.get_meta(pos)
@@ -524,7 +538,10 @@ minetest.register_node("digtron:master_builder", {
 
 		node_inventory_table.pos = pos
 		local inv = minetest.get_inventory(node_inventory_table)
-		inv:set_stack(listname, index, stack:take_item(1))
+		local item = stack:take_item(1)
+		sanitize_item(item)
+
+		inv:set_stack(listname, index, item)
 
 		-- If we're adding a wallmounted item and the build facing is greater than 5, reset it to 0
 		local meta = minetest.get_meta(pos)