Add horizontal scaffolding

GROUPS.md

@@ -31,6 +31,7 @@ Please read <http://minecraft.gamepedia.com/Breaking> to learn how digging times
 
 * `crush_after_fall=1`: For falling nodes. These will crush whatever they hit after falling, not dropping as an item
 * `falling_node_damage=1`: For falling nodes. Hurts any objects it hits while falling. Damage is based on anvils
+* `stack_falling = 1` : Stack falling nodes on top of each other even if they are not walkable.
 * `dig_by_water=1`: Blocks with this group will drop when they are near flowing water
 * `destroy_by_lava_flow=1`: Blocks with this group will be destroyed by flowing lava
 * `dig_by_piston=1`: Blocks which will drop as an item when pushed by a piston. They also cannot be pulled by sticky pistons

mods/ENTITIES/mcl_falling_nodes/init.lua

@@ -159,7 +159,8 @@ minetest.register_entity(":__builtin:falling_node", {
 
 		if bcn and (not bcd or bcd.walkable or
 				(minetest.get_item_group(self.node.name, "float") ~= 0 and
-				bcd.liquidtype ~= "none")) then
+				bcd.liquidtype ~= "none") or
+				 minetest.get_item_group(self.node.name, "stack_falling") > 0 ) then
 			if bcd and bcd.leveled and
 					bcn.name == self.node.name then
 				local addlevel = self.node.level

mods/ITEMS/mcl_scaffolding/init.lua

@@ -0,0 +1,154 @@
+local modname = minetest.get_current_modname()
+local S = minetest.get_translator(modname)
+local has_bamboo = minetest.get_modpath("mcl_bamboo")
+
+local adjacents = {
+	vector.new(0,0,1),
+	vector.new(0,0,-1),
+	vector.new(1,0,0),
+	vector.new(-1,0,0),
+}
+
+minetest.register_node("mcl_scaffolding:scaffolding", {
+	description = S("Scaffolding"),
+	doc_items_longdesc = S("Scaffolding block..."),
+	doc_items_hidden = false,
+	tiles = {"mcl_scaffolding_scaffolding_top.png","mcl_scaffolding_scaffolding_side.png","mcl_scaffolding_scaffolding_bottom.png"},
+	drawtype = "nodebox",
+	paramtype = "light",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, 0.375, -0.5, 0.5, 0.5, 0.5},
+			{-0.5, -0.5, -0.5, -0.375, 0.5, -0.375},
+			{0.375, -0.5, -0.5, 0.5, 0.5, -0.375},
+			{0.375, -0.5, 0.375, 0.5, 0.5, 0.5},
+			{-0.5, -0.5, 0.375, -0.375, 0.5, 0.5},
+		}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+		},
+	},
+	buildable_to = false,
+	is_ground_content = false,
+	walkable = false,
+	climbable = true,
+	physical = true,
+	node_placement_prediction = "",
+	groups = { handy=1, axey=1, flammable=3, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=20, falling_node = 1, stack_falling = 1 },
+	sounds = mcl_sounds.node_sound_wood_defaults(),
+	_mcl_blast_resistance = 0,
+	_mcl_hardness = 0,
+	on_place = function(itemstack, placer, ptd)
+		-- count param2 up when placing to the sides. Fall when > 6
+		local ctrl = placer:get_player_control()
+		if ctrl and ctrl.sneak then
+			local pp2 = minetest.get_node(ptd.under).param2
+			local np2 = pp2 + 1
+			if minetest.get_node(vector.offset(ptd.above,0,-1,0)).name == "air" then
+				minetest.set_node(ptd.above,{name = "mcl_scaffolding:scaffolding_horizontal",param2 = np2})
+				itemstack:take_item(1)
+			end
+			if np2 > 6 then
+				minetest.check_single_for_falling(ptd.above)
+			end
+			return itemstack
+		end
+
+		--place on solid nodes
+		local node = minetest.get_node(ptd.under)
+		if itemstack:get_name() ~= node.name then
+			minetest.set_node(ptd.above,{name = "mcl_scaffolding:scaffolding",param2 = 0})
+			itemstack:take_item(1)
+			return itemstack
+		end
+
+		--build up when placing on existing scaffold
+		local h = 0
+		local pos = ptd.under
+		repeat
+			pos.y = pos.y + 1
+			h = h + 1
+			local cn = minetest.get_node(pos)
+			if cn.name == "air" then
+				minetest.set_node(pos, node)
+				itemstack:take_item(1)
+				placer:set_wielded_item(itemstack)
+				return itemstack
+			end
+		until cn.name ~= node.name or h >= 32
+	end,
+	after_dig_node = function(pos, oldnode, oldmetadata, digger)
+		repeat
+			minetest.set_node(pos,{name="air"})
+			minetest.add_item(pos,"mcl_scaffolding:scaffolding")
+			for _,v in pairs(adjacents) do
+				minetest.check_for_falling(vector.add(pos,v))
+			end
+			pos = vector.offset(pos,0,1,0)
+		until oldnode.name ~= minetest.get_node(pos).name
+	end,
+	_mcl_after_falling = function(pos, depth)
+		if minetest.get_node(pos).name == "mcl_scaffolding:scaffolding" then
+			minetest.set_node(pos,{name = "mcl_scaffolding:scaffolding",param2 = 0})
+		end
+	end,
+})
+
+minetest.register_node("mcl_scaffolding:scaffolding_horizontal", {
+	description = S("Scaffolding horizontal"),
+	doc_items_longdesc = S("Scaffolding block..."),
+	doc_items_hidden = false,
+	tiles = {"mcl_scaffolding_scaffolding_side.png","mcl_scaffolding_scaffolding_top.png","mcl_scaffolding_scaffolding_bottom.png"},
+	drawtype = "nodebox",
+	paramtype = "light",
+	node_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, 0.375, -0.5, 0.5, 0.5, 0.5},
+			{-0.5, -0.5, -0.5, -0.375, 0.5, -0.375},
+			{0.375, -0.5, -0.5, 0.5, 0.5, -0.375},
+			{0.375, -0.5, 0.375, 0.5, 0.5, 0.5},
+			{-0.5, -0.5, 0.375, -0.375, 0.5, 0.5},
+			{-0.5, -0.5, -0.5, 0.5, -0.375, 0.5},
+		}
+	},
+	selection_box = {
+		type = "fixed",
+		fixed = {
+			{-0.5, -0.5, -0.5, 0.5, 0.5, 0.5},
+		},
+	},
+	groups = { handy=1, axey=1, flammable=3, building_block=1, material_wood=1, fire_encouragement=5, fire_flammability=20, not_in_creative_inventory = 1, falling_node = 1 },
+	_mcl_after_falling = function(pos)
+		if minetest.get_node(pos).name == "mcl_scaffolding:scaffolding_horizontal" then
+			if minetest.get_node(vector.offset(pos,0,0,0)).name ~= "mcl_scaffolding:scaffolding" then
+				minetest.remove_node(pos)
+				minetest.add_item(pos,"mcl_scaffolding:scaffolding")
+			else
+				minetest.set_node(vector.offset(pos,0,1,0),{name = "mcl_scaffolding:scaffolding"})
+			end
+		end
+	end
+})
+
+local bamboo = "mcl_core:stick"
+if has_bamboo then
+	bamboo = "mcl_bamboo:bamboo_stem"
+end
+
+minetest.register_craft({
+	output = "mcl_scaffolding:scaffolding 6",
+	recipe = {{bamboo, "mcl_mobitems:string", bamboo},
+			 {bamboo, "", bamboo},
+			 {bamboo, "", bamboo}}
+})
+
+minetest.register_craft({
+	type = "fuel",
+	recipe = "mcl_scaffolding:scaffolding",
+	burntime = 20
+})

mods/ITEMS/mcl_scaffolding/mod.conf

@@ -0,0 +1,4 @@
+name = mcl_scaffolding
+author = cora
+depends = mcl_sounds, mcl_core, mcl_mobitems
+optional_depends = mcl_bamboo