Everything *BUT* scraping works properly.

mods/ITEMS/mcl_copper/functions.lua

@@ -13,6 +13,20 @@ function mcl_copper.on_place (itemstack, placer, pointed_thing)
 		return itemstack
 	end
 
+	-- Apply scraping with an axe. (string.find returns nil if the string is not found.)
+	local wield_item = placer:get_wielded_item()
+	if string.find (wield_item:get_name(), "tools:axe" ) ~= nil then
+		if string.find(node_name, "mcl_copper") ~= nil then
+			if string.find(node_name, "waxed") ~= nil then
+				local item = mcl_copper.scraping_copper_block(pos, node, placer, wield_item)
+				if item and item:get_name() ~= "" then
+					placer:set_wielded_item(item) -- add wear to the axe.
+					return
+				end
+			end
+		end
+	end
+
 	-- Use pointed node's on_rightclick function first, if present
 	local new_stack = mcl_util.call_on_rightclick(itemstack, placer, pointed_thing)
 	if new_stack then
@@ -26,7 +40,6 @@ function mcl_copper.on_place (itemstack, placer, pointed_thing)
 	minetest.item_place(placed, placer, pointed_thing, minetest.dir_to_facedir(vector.direction(pointed_thing.above, pointed_thing.under)))
 
 	return itemstack
-
 end
 
 local function register_oxidation_abm(abm_name, node_name, oxidized_variant)
@@ -41,7 +54,7 @@ local function register_oxidation_abm(abm_name, node_name, oxidized_variant)
 	})
 end
 
-function waxing_copper_block(pos, node, player, itemstack, convert_to)
+function mcl_copper.waxing_copper_block(pos, node, player, itemstack)
 	if itemstack:get_name() == "mcl_honey:honeycomb" then
 		-- prevent modification of protected nodes.
 		if mcl_util.check_position_protection(pos, player) then
@@ -60,13 +73,12 @@ function waxing_copper_block(pos, node, player, itemstack, convert_to)
 			itemstack:take_item()
 		end
 		return itemstack
-
 	else
 		return -- changed to work with mcl_util.call_on_rightclick()
 	end
 end
 
-function scraping_copper_block(pos, node, player, itemstack, convert_to)
+function mcl_copper.scraping_copper_block(pos, node, player, itemstack)
 	if itemstack:get_name():find("axe") then
 		-- prevent modification of protected nodes.
 		if mcl_util.check_position_protection(pos, player) then
@@ -85,6 +97,7 @@ function scraping_copper_block(pos, node, player, itemstack, convert_to)
 			local tool = itemstack:get_name()
 			local wear = mcl_autogroup.get_wear(tool, "axey")
 			itemstack:add_wear(wear)
+			return itemstack
 		end
 	else
 		return

mods/ITEMS/mcl_copper/nodes.lua

@@ -36,9 +36,6 @@ minetest.register_node("mcl_copper:block", {
 	_mcl_hardness = 3,
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack)
-		return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block")
-	end,
 })
 
 minetest.register_node("mcl_copper:waxed_block", {
@@ -52,7 +49,6 @@ minetest.register_node("mcl_copper:waxed_block", {
 	_mcl_hardness = 3,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block") end,
 })
 
 minetest.register_node("mcl_copper:block_exposed", {
@@ -67,7 +63,6 @@ minetest.register_node("mcl_copper:block_exposed", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_exposed",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_exposed") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_exposed", {
@@ -81,7 +76,6 @@ minetest.register_node("mcl_copper:waxed_block_exposed", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block") end,
 })
 
 minetest.register_node("mcl_copper:block_weathered", {
@@ -96,7 +90,6 @@ minetest.register_node("mcl_copper:block_weathered", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block_exposed",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_weathered",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_weathered") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_weathered", {
@@ -110,7 +103,6 @@ minetest.register_node("mcl_copper:waxed_block_weathered", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_exposed",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_exposed") end,
 })
 
 minetest.register_node("mcl_copper:block_oxidized", {
@@ -125,7 +117,6 @@ minetest.register_node("mcl_copper:block_oxidized", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block_weathered",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_oxidized",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_oxidized") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_oxidized", {
@@ -139,7 +130,6 @@ minetest.register_node("mcl_copper:waxed_block_oxidized", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_weathered",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_weathered") end,
 })
 
 minetest.register_node("mcl_copper:block_cut", {
@@ -153,7 +143,6 @@ minetest.register_node("mcl_copper:block_cut", {
 	_mcl_hardness = 5,
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_cut") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_cut", {
@@ -167,7 +156,6 @@ minetest.register_node("mcl_copper:waxed_block_cut", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_cut") end,
 })
 
 minetest.register_node("mcl_copper:block_exposed_cut", {
@@ -182,7 +170,6 @@ minetest.register_node("mcl_copper:block_exposed_cut", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block_cut",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_exposed_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_exposed_cut") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_exposed_cut", {
@@ -196,7 +183,6 @@ minetest.register_node("mcl_copper:waxed_block_exposed_cut", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_cut") end,
 })
 
 minetest.register_node("mcl_copper:block_weathered_cut", {
@@ -211,7 +197,6 @@ minetest.register_node("mcl_copper:block_weathered_cut", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block_exposed_cut",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_weathered_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_weathered_cut") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_weathered_cut", {
@@ -225,7 +210,6 @@ minetest.register_node("mcl_copper:waxed_block_weathered_cut", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_exposed_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_exposed_cut") end,
 })
 
 minetest.register_node("mcl_copper:block_oxidized_cut", {
@@ -240,7 +224,6 @@ minetest.register_node("mcl_copper:block_oxidized_cut", {
 	_mcl_anti_oxidation_variant = "mcl_copper:block_weathered_cut",
 	_mcl_copper_waxed_variant = "mcl_copper:waxed_block_oxidized_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return waxing_copper_block(pos, node, player, itemstack, "mcl_copper:waxed_block_oxidized_cut") end,
 })
 
 minetest.register_node("mcl_copper:waxed_block_oxidized_cut", {
@@ -254,7 +237,6 @@ minetest.register_node("mcl_copper:waxed_block_oxidized_cut", {
 	_mcl_hardness = 5,
 	_mcl_copper_unwaxed_variant = "mcl_copper:block_weathered_cut",
 	on_place = mcl_copper.on_place,
-	on_rightclick = function(pos, node, player, itemstack) return scraping_copper_block(pos, node, player, itemstack, "mcl_copper:block_weathered_cut") end,
 })
 
 mcl_stairs.register_slab("copper_cut", "mcl_copper:block_cut",

mods/ITEMS/mcl_honey/init.lua

@@ -13,6 +13,23 @@ minetest.register_craftitem("mcl_honey:honeycomb", {
 	_doc_items_usagehelp = S("Use on copper blocks to prevent further oxidation."),
 	inventory_image = "mcl_honey_honeycomb.png",
 	groups = { craftitem = 1 },
+	on_place = function(itemstack, placer, pointed_thing)
+		if pointed_thing.type ~= "node" then
+			return itemstack
+		end
+		local node = minetest.get_node(pointed_thing.under)
+		local pos = pointed_thing.under
+		local node_name = node.name
+
+		if minetest.get_modpath("mcl_copper") and mcl_copper then
+			if string.find(node_name,"mcl_copper") ~= nil then
+				if string.find(node_name,"waxed") == nil then
+					-- wax the copper block.
+					return mcl_copper.waxing_copper_block(pos, node, placer, itemstack)
+				end
+			end
+		end
+	end,
 })
 
 minetest.register_node("mcl_honey:honeycomb_block", {

mods/ITEMS/mcl_honey/mod.conf

@@ -2,3 +2,4 @@ name = mcl_honey
 author = PrairieWind
 description = MineClone 2 mod that adds honey and honeycomb and the respective block versions.
 depends = mesecons_mvps
+optional = mcl_copper