Building Blocks moreblocks and stairs

Simplify integration moreblocks
Replace bb stairs by Stairs

building_blocks/depends.txt

 default
 homedecor_i18n
 moreblocks?
+stairs?

building_blocks/init.lua

-
 local S = homedecor_i18n.gettext
 
-minetest.register_node("building_blocks:adobe", {
+local function building_blocks_stairs(nodename, def)
+	minetest.register_node(nodename, def)	
+	if minetest.get_modpath("moreblocks") or minetest.get_modpath("stairs") then
+		local mod, name = nodename:match("(.*):(.*)")
+		for groupname,value in pairs(def.groups) do
+			if	groupname ~= "cracky" and
+				groupname ~= "choppy" and
+				groupname ~="flammable" and
+				groupname ~="crumbly" and
+				groupname ~="snappy" 
+			then
+				def.groups.groupname = nil
+			end
+		end
+		
+		if minetest.get_modpath("moreblocks") then
+			stairsplus:register_all(
+				mod,
+				name,
+				nodename,
+				{
+					description = def.description,
+					tiles = def.tiles,
+					groups = def.groups,
+					sounds = def.sounds,
+				}
+			)
+		else
+			stairs.register_stair_and_slab(name,nodename,
+				def.groups,
+				def.tiles,
+				("%s Stair"):format(def.description),
+				("%s Slab"):format(def.description),
+				def.sounds
+			)
+		end	
+	end
+end
+
+building_blocks_stairs("building_blocks:adobe", {
 	tiles = {"building_blocks_Adobe.png"},
 	description = S("Adobe"),
 	is_ground_content = true,
 	groups = {crumbly=3},
 	sounds = default.node_sound_stone_defaults(),
 })
-minetest.register_node("building_blocks:roofing", {
+building_blocks_stairs("building_blocks:roofing", {
 	tiles = {"building_blocks_Roofing.png"},
 	is_ground_content = true,
 	description = S("Roof block"),
@@ -162,7 +200,7 @@ minetest.register_node("building_blocks:smoothglass", {
 	groups = {snappy=3,cracky=3,oddly_breakable_by_hand=3},
 	sounds = default.node_sound_glass_defaults(),
 })
-minetest.register_node("building_blocks:grate", {
+building_blocks_stairs("building_blocks:grate", {
 	drawtype = "glasslike",
 	description = S("Grate"),
 	tiles = {"building_blocks_grate.png"},
@@ -293,7 +331,7 @@ minetest.register_node("building_blocks:gravel_spread", {
 		dug = {name="default_gravel_footstep", gain=1.0},
 	}),
 })
-minetest.register_node("building_blocks:hardwood", {
+building_blocks_stairs("building_blocks:hardwood", {
 	tiles = {"building_blocks_hardwood.png"},
 	is_ground_content = true,
 	description = S("Hardwood"),
@@ -302,43 +340,6 @@ minetest.register_node("building_blocks:hardwood", {
 })
 
 if minetest.get_modpath("moreblocks") then
-
-	stairsplus:register_all(
-		"building_blocks",
-		"marble",
-		"building_blocks:Marble",
-		{
-			description = S("Marble"),
-			tiles = {"building_blocks_marble.png"},
-			groups = {cracky=3},
-			sounds = default.node_sound_stone_defaults(),
-		}
-	)
-	stairsplus:register_all(
-		"building_blocks",
-		"hardwood",
-		"building_blocks:hardwood",
-		{
-			description = S("Hardwood"),
-			tiles = {"building_blocks_hardwood.png"},
-			groups = {choppy=1,flammable=1},
-			sounds = default.node_sound_wood_defaults(),
-		}
-	)
-	stairsplus:register_all(
-		"building_blocks",
-		"fakegrass",
-		"building_blocks:fakegrass",
-		{
-			description = S("Grass"),
-			tiles = {"default_grass.png"},
-			groups = {crumbly=3},
-			sounds = default.node_sound_dirt_defaults({
-				footstep = {name="default_grass_footstep", gain=0.4},
-			}),
-		}
-	)
-
 	for _, i in ipairs(stairsplus.shapes_list) do
 		local class = i[1]
 		local cut = i[2]
@@ -348,168 +349,6 @@ if minetest.get_modpath("moreblocks") then
 	end
 	minetest.unregister_item("moreblocks:tar")
 	minetest.register_alias("moreblocks:tar", "building_blocks:tar")
-
-	stairsplus:register_all(
-		"building_blocks",
-		"tar",
-		"building_blocks:Tar",
-		{
-			description = S("Tar"),
-			tiles = {"building_blocks_tar.png"},
-			groups = {crumbly=1},
-			sounds = default.node_sound_stone_defaults(),
-		}
-	)
-
-	stairsplus:register_all(
-		"building_blocks",
-		"grate",
-		"building_blocks:grate",
-		{
-			description = S("Grate"),
-			tiles = {"building_blocks_grate.png"},
-			groups = {cracky=1},
-			sounds = default.node_sound_stone_defaults(),
-		}
-	)
-	stairsplus:register_all(
-		"building_blocks",
-		"Adobe",
-		"building_blocks:Adobe",
-		{
-			description = S("Adobe"),
-			tiles = {"building_blocks_Adobe.png"},
-			groups = {crumbly=3},
-			sounds = default.node_sound_stone_defaults(),
-		}
-	)
-	stairsplus:register_all(
-		"building_blocks",
-		"Roofing",
-		"building_blocks:Roofing",
-		{
-			description = S("Roofing"),
-			tiles = {"building_blocks_Roofing.png"},
-			groups = {snappy=3},
-			sounds = default.node_sound_stone_defaults(),
-		}
-	)
-else
-	bb_stairs = {}
-
-	-- Node will be called stairs:stair_<subname>
-	function bb_stairs.register_stair(subname, recipeitem, groups, images, description)
-		minetest.register_node("building_blocks:stair_" .. subname, {
-			description = description,
-			drawtype = "nodebox",
-			tiles = images,
-			paramtype = "light",
-			paramtype2 = "facedir",
-			is_ground_content = true,
-			groups = groups,
-			node_box = {
-				type = "fixed",
-				fixed = {
-					{-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-					{-0.5, 0, 0, 0.5, 0.5, 0.5},
-				},
-			},
-		})
-
-		minetest.register_craft({
-			output = 'building_blocks:stair_' .. subname .. ' 4',
-			recipe = {
-				{recipeitem, "", ""},
-				{recipeitem, recipeitem, ""},
-				{recipeitem, recipeitem, recipeitem},
-			},
-		})
-
-		-- Flipped recipe for the silly minecrafters
-		minetest.register_craft({
-			output = 'building_blocks:stair_' .. subname .. ' 4',
-			recipe = {
-				{"", "", recipeitem},
-				{"", recipeitem, recipeitem},
-				{recipeitem, recipeitem, recipeitem},
-			},
-		})
-	end
-
-	-- Node will be called stairs:slab_<subname>
-	function bb_stairs.register_slab(subname, recipeitem, groups, images, description)
-		minetest.register_node("building_blocks:slab_" .. subname, {
-			description = description,
-			drawtype = "nodebox",
-			tiles = images,
-			paramtype = "light",
-			is_ground_content = true,
-			groups = groups,
-			node_box = {
-				type = "fixed",
-				fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-			},
-			selection_box = {
-				type = "fixed",
-				fixed = {-0.5, -0.5, -0.5, 0.5, 0, 0.5},
-			},
-		})
-
-		minetest.register_craft({
-			output = 'building_blocks:slab_' .. subname .. ' 3',
-			recipe = {
-				{recipeitem, recipeitem, recipeitem},
-			},
-		})
-	end
-
-	-- Nodes will be called stairs:{stair,slab}_<subname>
-	function bb_stairs.register_stair_and_slab(subname, recipeitem, groups, images, desc_stair, desc_slab)
-		bb_stairs.register_stair(subname, recipeitem, groups, images, desc_stair)
-		bb_stairs.register_slab(subname, recipeitem, groups, images, desc_slab)
-	end
-	bb_stairs.register_stair_and_slab("marble","building_blocks:Marble",
-		{cracky=3},
-		{"building_blocks_marble.png"},
-		S("Marble stair"),
-		S("Marble slab")
-	)
-	bb_stairs.register_stair_and_slab("hardwood","building_blocks:hardwood",
-		{choppy=1,flammable=1},
-		{"building_blocks_hardwood.png"},
-		S("Hardwood stair"),
-		S("Hardwood slab")
-	)
-	bb_stairs.register_stair_and_slab("fakegrass","building_blocks:fakegrass",
-		{crumbly=3},
-		{"default_grass.png"},
-		S("Grass stair"),
-		S("Grass slab")
-	)
-	bb_stairs.register_stair_and_slab("tar","building_blocks:Tar",
-		{crumbly=1},
-		{"building_blocks_tar.png"},
-		S("Tar stair"),
-		S("Tar slab")
-	)
-	bb_stairs.register_stair_and_slab("grate","building_blocks:grate",
-		{cracky=1},
-		{"building_blocks_grate.png"},
-		S("Grate Stair"),
-		S("Grate Slab")
-	)
-	bb_stairs.register_stair_and_slab("Adobe", "building_blocks:Adobe",
-		{crumbly=3},
-		{"building_blocks_Adobe.png"},
-		S("Adobe stair"),
-		S("Adobe slab")
-	)
-	bb_stairs.register_stair_and_slab("Roofing", "building_blocks:Roofing",
-		{snappy=3},
-		{"building_blocks_Roofing.png"},
-		S("Roofing stair"),
-		S("Roofing slab")
-	)
 end
 
 
@@ -519,7 +358,7 @@ minetest.register_craft({
 	burntime = 28,
 })
 
-minetest.register_node("building_blocks:fakegrass", {
+building_blocks_stairs("building_blocks:fakegrass", {
 	tiles = {"default_grass.png", "default_dirt.png", "default_dirt.png^default_grass_side.png"},
 	description = S("Fake Grass"),
 	is_ground_content = true,
@@ -564,14 +403,14 @@ minetest.register_alias("building_blocks:Roofing", "building_blocks:roofing")
 minetest.register_alias("building_blocks:Tar", "building_blocks:tar")
 minetest.register_alias("building_blocks:Marble", "building_blocks:marble")
 
-minetest.register_node("building_blocks:tar", {
+building_blocks_stairs("building_blocks:tar", {
 	description = S("Tar"),
 	tiles = {"building_blocks_tar.png"},
 	is_ground_content = true,
 	groups = {crumbly=1, tar_block = 1},
 	sounds = default.node_sound_stone_defaults(),
 })
-minetest.register_node("building_blocks:marble", {
+building_blocks_stairs("building_blocks:marble", {
 	description = S("Marble"),
 	tiles = {"building_blocks_marble.png"},
 	is_ground_content = true,