local fence_collision_extra = 4/8

--create fences for all solid nodes
for name,def in pairs(minetest.registered_nodes) do
	if def.drawtype == "normal" and string.match(name, "main:") then
	
		--set up fence
		local def2 = table.copy(def)
		local newname = "walls:"..string.gsub(name, "main:", "").."_fence"
		def2.mod_origin = "walls"
		def2.name = newname
		def2.description = def.description.." Fence"
		def2.drop = newname
		def2.paramtype = "light"
		def2.drawtype = "nodebox"
		def2.on_dig = nil
		def2.node_box = {
			type = "connected",
			fixed = {-1/8, -1/2, -1/8, 1/8, 1/2, 1/8},
			-- connect_top =
			-- connect_bottom =
			connect_front = {{-1/16,  3/16, -1/2,   1/16,  5/16, -1/8 },
				         {-1/16, -5/16, -1/2,   1/16, -3/16, -1/8 }},
			connect_left =  {{-1/2,   3/16, -1/16, -1/8,   5/16,  1/16},
				         {-1/2,  -5/16, -1/16, -1/8,  -3/16,  1/16}},
			connect_back =  {{-1/16,  3/16,  1/8,   1/16,  5/16,  1/2 },
				         {-1/16, -5/16,  1/8,   1/16, -3/16,  1/2 }},
			connect_right = {{ 1/8,   3/16, -1/16,  1/2,   5/16,  1/16},
				         { 1/8,  -5/16, -1/16,  1/2,  -3/16,  1/16}}
		}
		def2.collision_box = {
			type = "connected",
			fixed = {-1/8, -1/2, -1/8, 1/8, 1/2 + fence_collision_extra, 1/8},
			-- connect_top =
			-- connect_bottom =
			connect_front = {-1/8, -1/2, -1/2,  1/8, 1/2 + fence_collision_extra, -1/8},
			connect_left =  {-1/2, -1/2, -1/8, -1/8, 1/2 + fence_collision_extra,  1/8},
			connect_back =  {-1/8, -1/2,  1/8,  1/8, 1/2 + fence_collision_extra,  1/2},
			connect_right = { 1/8, -1/2, -1/8,  1/2, 1/2 + fence_collision_extra,  1/8}
		}
		def2.connects_to = {"group:fence", "group:wood", "group:tree", "group:wall", "group:stone", "group:sand"}
		def2.sunlight_propagates = true
		minetest.register_node(newname,def2)
		
		minetest.register_craft({
			output = newname .. " 16",
			recipe = {
				{ name, 'main:stick', name },
				{ name, 'main:stick', name },
			}
		})
		
	end
end

--create wall posts
for name,def in pairs(minetest.registered_nodes) do
	if def.drawtype == "normal" and string.match(name, "main:") then
	
		--set up wall
		local def2 = table.copy(def)
		local newname = "walls:"..string.gsub(name, "main:", "").."_wall_post"
		def2.description = def.description.." Wall"
		def2.mod_origin = "walls"
		def2.name = newname
		def2.drop = newname
		def2.paramtype = "light"
		def2.drawtype = "nodebox"
		def2.on_dig = nil
		--def2.on_place = function(itemstack, placer, pointed_thing)
		--	minetest.item_place(itemstack, placer, pointed_thing)
		--	wall_placing(pointed_thing.above,newname)
		--end
		def2.node_box = {
			type = "connected",
			disconnected_sides  = {-4/16, -1/2, -4/16, 4/16, 9/16, 4/16},
			-- connect_top =
			-- connect_bottom =
			connect_front = {-2/16,  -1/2, -1/2,   2/16,  1/2, 2/16 },
			connect_left =  {-1/2,   -1/2, -2/16, 2/16,   1/2,  2/16},
			connect_back =  {-2/16,  -1/2,  -2/16,   2/16,  1/2,  1/2 },
			connect_right = { -2/16,   -1/2, -2/16,  1/2,   1/2,  2/16},
		}
		def2.collision_box = {
			type = "connected",
			fixed = {-1/8, -1/2, -1/8, 1/8, 1/2 + fence_collision_extra, 1/8},
			-- connect_top =
			-- connect_bottom =
			connect_front = {-2/16,  -1/2, -1/2,   2/16,1/2 + fence_collision_extra, 2/16 },
			connect_left =  {-1/2,   -1/2, -2/16, 2/16,    1/2 + fence_collision_extra,  2/16},
			connect_back =  {-2/16,  -1/2,  -2/16,   2/16,  1/2 + fence_collision_extra,  1/2 },
			connect_right = {-2/16,   -1/2, -2/16,  1/2,   1/2 + fence_collision_extra,  2/16},
		}
		def2.groups["fence"] = 1
		def2.connects_to = {"group:fence", "group:wood", "group:tree", "group:wall", "group:stone", "group:sand"}
		def2.sunlight_propagates = true
		minetest.register_node(newname,def2)
		
		minetest.register_craft({
			output = newname .. " 16",
			recipe = {
				{ name, 'main:iron', name },
				{ name, name       , name },
			}
		})
		
	end
end

--create window
local def = minetest.registered_nodes["main:glass"]

--set up wall
local def2 = table.copy(def)
local newname = "walls:window"
def2.description = "Window"
def2.mod_origin = "walls"
def2.name = newname
def2.drop = ""
def2.paramtype = "light"
def2.drawtype = "nodebox"
def2.on_dig = nil
--def2.on_place = function(itemstack, placer, pointed_thing)
--	minetest.item_place(itemstack, placer, pointed_thing)
--	wall_placing(pointed_thing.above,newname)
--end
def2.node_box = {
	type = "connected",
	disconnected_sides  = {
	{-1/16,  -1/2, -1/2,   1/16,  1/2, 1/16 },
	{-1/2,   -1/2, -1/16, 1/16,   1/2,  1/16},
	{-1/16,  -1/2,  -1/16,   1/16,  1/2,  1/2 },
	{ -1/16,   -1/2, -1/16,  1/2,   1/2,  1/16},
	},
	-- connect_top =
	-- connect_bottom =
	connect_front = {-1/16,  -1/2, -1/2,   1/16,  1/2, 1/16 },
	connect_left =  {-1/2,   -1/2, -1/16, 1/16,   1/2,  1/16},
	connect_back =  {-1/16,  -1/2,  -1/16,   1/16,  1/2,  1/2 },
	connect_right = { -1/16,   -1/2, -1/16,  1/2,   1/2,  1/16},
}

def2.connects_to = {"group:fence", "group:wood", "group:wall", "group:stone", "group:sand","group:glass"}
def2.sunlight_propagates = true
minetest.register_node(newname,def2)

minetest.register_craft({
	output = newname .. " 16",
	recipe = {
		{ "main:glass", "main:glass" },
		{ "main:glass", "main:glass" },
	}
})