remove debug prints

Placing a "wallmounted" sign onto a streets lamp would cause a
weird rotation if you're pointing downward too far.  Now it
enforces NESW direction according to your yaw.

Also fixes bad orientation when you're really close to a post.

api.lua

@@ -29,6 +29,8 @@ signs_lib.standard_steel_groups.attached_node = nil
 signs_lib.standard_wood_sign_sounds  = table.copy(minetest.registered_items["default:sign_wall_wood"].sounds)
 signs_lib.standard_steel_sign_sounds = table.copy(minetest.registered_items["default:sign_wall_steel"].sounds)
 
+signs_lib.default_text_scale = {x=10, y=10}
+
 signs_lib.standard_yaw = {
 	0,
 	math.pi / -2,
@@ -61,69 +63,183 @@ signs_lib.wall_fdir_to_back = {
 	{  1,  0 },
 }
 
-signs_lib.rotate_facedir = {
-	[0] = 1,
-	[1] = 6,
-	[2] = 3,
-	[3] = 0,
-	[4] = 2,
-	[5] = 6,
-	[6] = 4
+signs_lib.fdir_to_back_left = {
+	[0] = { -1,  1 },
+	[1] = {  1,  1 },
+	[2] = {  1, -1 },
+	[3] = { -1, -1 }
+}
+
+signs_lib.wall_fdir_to_back_left = {
+	[2] = {  1,  1 },
+	[3] = { -1, -1 },
+	[4] = { -1,  1 },
+	[5] = {  1, -1 }
 }
 
 signs_lib.rotate_walldir = {
-	[0] = 1,
-	[1] = 5,
-	[2] = 0,
+	[0] = 4,
+	[1] = 0,
+	[2] = 5,
+	[3] = 1,
+	[4] = 2,
+	[5] = 3
+}
+
+signs_lib.rotate_walldir_simple = {
+	[0] = 4,
+	[1] = 4,
+	[2] = 5,
 	[3] = 4,
 	[4] = 2,
 	[5] = 3
 }
 
+signs_lib.rotate_facedir = {
+	[0] = 1,
+	[1] = 2,
+	[2] = 3,
+	[3] = 4,
+	[4] = 6,
+	[5] = 6,
+	[6] = 0
+}
+
+signs_lib.rotate_facedir_simple = {
+	[0] = 1,
+	[1] = 2,
+	[2] = 3,
+	[3] = 0,
+	[4] = 0,
+	[5] = 0
+}
+
 -- Initialize character texture cache
 local ctexcache = {}
 
-signs_lib.wallmounted_rotate = function(pos, node, user, mode)
-	if not signs_lib.can_modify(pos, user) then return false end
+-- entity handling
 
-	if mode ~= screwdriver.ROTATE_FACE or string.match(node.name, "_onpole") then
-		return false
+minetest.register_entity("signs_lib:text", {
+	collisionbox = { 0, 0, 0, 0, 0, 0 },
+	visual = "mesh",
+	mesh = "signs_lib_standard_wall_sign_entity.obj",
+	textures = {},
+	static_save = false
+})
+
+function signs_lib.delete_objects(pos)
+	local objects = minetest.get_objects_inside_radius(pos, 0.5)
+	for _, v in ipairs(objects) do
+		v:remove()
 	end
-
-	local newparam2 = signs_lib.rotate_walldir[node.param2] or 0
-
-	minetest.swap_node(pos, { name = node.name, param2 = newparam2 })
-	for _, v in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
-		local e = v:get_luaentity()
-		if e and e.name == "signs_lib:text" then
-			v:remove()
-		end
-	end
-	signs_lib.update_sign(pos)
-	return true
 end
 
-signs_lib.facedir_rotate = function(pos, node, user, mode)
-	if not signs_lib.can_modify(pos, user) then return false end
+function signs_lib.spawn_entity(pos, texture)
+	local node = minetest.get_node(pos)
+	local def = minetest.registered_items[node.name]
+	if not def or not def.entity_info then return end
 
-	if mode ~= screwdriver.ROTATE_FACE or string.match(node.name, "_onpole") then
-		return false
+	local text_scale = (node and node.text_scale) or signs_lib.default_text_scale
+	local objects = minetest.get_objects_inside_radius(pos, 0.5)
+	local obj
+
+	if #objects > 0 then
+		obj = objects[1]
+	else
+		obj = minetest.add_entity(pos, "signs_lib:text")
 	end
 
-	local newparam2 = signs_lib.rotate_facedir[node.param2] or 0
+	local yaw = def.entity_info.yaw[node.param2 + 1]
+	local pitch = 0
 
-	minetest.swap_node(pos, { name = node.name, param2 = newparam2 })
-	for _, v in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
-		local e = v:get_luaentity()
-		if e and e.name == "signs_lib:text" then
-			v:remove()
+	if not string.find(node.name, "onpole") and not string.find(node.name, "hanging") then
+		local rot90 = math.pi/2
+
+		if def.paramtype2 == "wallmounted" then
+			if node.param2 == 1 then -- on floor
+				pitch = -rot90
+				yaw = 0
+			elseif node.param2 == 0 then -- on ceiling
+				pitch = rot90
+				yaw = math.pi
+			end
+		elseif def.paramtype2 == "facedir" then
+			if node.param2 == 4 then
+				pitch = -rot90
+				yaw = 0
+			elseif node.param2 == 6 then
+				pitch = rot90
+				yaw = math.pi
+			end
+		end
+	end
+
+	if yaw then
+		obj:set_rotation({x = pitch, y = yaw, z=0})
+
+		if not texture then
+			obj:set_properties({
+				mesh = def.entity_info.mesh,
+				visual_size = text_scale,
+			})
+		else
+			obj:set_properties({
+				mesh = def.entity_info.mesh,
+				visual_size = text_scale,
+				textures={texture},
+			})
 		end
 	end
-	signs_lib.update_sign(pos)
-	return true
 end
 
-local DEFAULT_TEXT_SCALE = {x=10, y=10}
+-- rotation
+
+function signs_lib.handle_rotation(pos, node, user, mode)
+	if not signs_lib.can_modify(pos, user)
+	  or mode ~= screwdriver.ROTATE_FACE then
+		return false
+	end
+	local newparam2
+	local tpos = pos
+	local def = minetest.registered_items[node.name]
+
+	if string.match(node.name, "_onpole") then
+		local newparam2 = signs_lib.rotate_walldir_simple[node.param2] or 4
+		local t = signs_lib.wall_fdir_to_back_left
+
+		if def.paramtype2 ~= "wallmounted" then
+			newparam2 = signs_lib.rotate_facedir_simple[node.param2] or 0
+			t  = signs_lib.fdir_to_back_left
+		end
+
+		tpos = {
+			x = pos.x + t[node.param2][1],
+			y = pos.y,
+			z = pos.z + t[node.param2][2]
+		}
+
+		local node2 = minetest.get_node(tpos)
+		local def2 = minetest.registered_items[node2.name]
+		if not def2 or not def2.buildable_to then return true end -- undefined, or not buildable_to.
+
+
+		minetest.set_node(tpos, {name = node.name, param2 = newparam2})
+		minetest.get_meta(tpos):from_table(minetest.get_meta(pos):to_table())
+		minetest.remove_node(pos)
+		signs_lib.delete_objects(pos)
+
+	elseif string.match(node.name, "_hanging") or string.match(node.name, "yard") then
+		minetest.swap_node(tpos, { name = node.name, param2 = signs_lib.rotate_facedir_simple[node.param2] or 0 })
+	elseif minetest.registered_items[node.name].paramtype2 == "wallmounted" then
+		minetest.swap_node(tpos, { name = node.name, param2 = signs_lib.rotate_walldir[node.param2] or 0 })
+	else
+		minetest.swap_node(tpos, { name = node.name, param2 = signs_lib.rotate_facedir[node.param2] or 0 })
+	end
+
+	signs_lib.delete_objects(tpos)
+	signs_lib.update_sign(tpos)
+	return true
+end
 
 -- infinite stacks
 
@@ -235,15 +351,6 @@ local fences_with_sign = { }
 
 -- some local helper functions
 
-local function split_lines_and_words(text)
-	if not text then return end
-	local lines = { }
-	for _, line in ipairs(text:split("\n")) do
-		table.insert(lines, line:split(" "))
-	end
-	return lines
-end
-
 local math_max = math.max
 
 local function fill_line(x, y, w, c, font_size, colorbgw)
@@ -388,6 +495,7 @@ end
 local function make_sign_texture(lines, pos)
 	local node = minetest.get_node(pos)
 	local def = minetest.registered_items[node.name]
+	if not def or not def.entity_info then return end
 
 	local font_size
 	local line_width
@@ -422,26 +530,55 @@ local function make_sign_texture(lines, pos)
 	return table.concat(texture, "")
 end
 
-local function set_obj_text(obj, text, x, pos)
-	local split = split_lines_and_words
-	local text_ansi = Utf8ToAnsi(text)
-	local n = minetest.registered_nodes[minetest.get_node(pos).name]
-	local text_scale = (n and n.text_scale) or DEFAULT_TEXT_SCALE
-	local texture = make_sign_texture(split(text_ansi), pos)
-	obj:set_properties({
-		textures={texture},
-		visual_size = text_scale,
-	})
+function signs_lib.split_lines_and_words(text)
+	if not text then return end
+	local lines = { }
+	for _, line in ipairs(text:split("\n")) do
+		table.insert(lines, line:split(" "))
+	end
+	return lines
 end
 
-signs_lib.construct_sign = function(pos)
-	local meta = minetest.get_meta(pos)
-	meta:set_string(
-		"formspec",
-		"size[6,4]"..
+function signs_lib.set_obj_text(pos, text)
+	local split = signs_lib.split_lines_and_words
+	local text_ansi = Utf8ToAnsi(text)
+	local n = minetest.registered_nodes[minetest.get_node(pos).name]
+	signs_lib.delete_objects(pos)
+	signs_lib.spawn_entity(pos, make_sign_texture(split(text_ansi), pos))
+end
+
+local function make_widefont_nodename(name)
+	if string.find(name, "_widefont") then return name end
+	if string.find(name, "_onpole")  then
+		return string.gsub(name, "_onpole", "_widefont_onpole")
+	elseif string.find(name, "_hanging") then
+		return string.gsub(name, "_hanging", "_widefont_hanging")
+	else
+		return name.."_widefont"
+	end
+end
+
+function signs_lib.construct_sign(pos)
+	local form = "size[6,4]"..
 		"textarea[0,-0.3;6.5,3;text;;${text}]"..
-		"button_exit[2,3.4;2,1;ok;"..S("Write").."]"..
-		"background[-0.5,-0.5;7,5;signs_lib_sign_bg.jpg]")
+		"background[-0.5,-0.5;7,5;signs_lib_sign_bg.jpg]"
+	local node = minetest.get_node(pos)
+	local wname = make_widefont_nodename(node.name)
+
+	if minetest.registered_items[wname] then
+		local state = "off"
+		if string.find(node.name, "widefont") then state = "on" end
+		form = form.."label[1,3.4;Use wide font]"..
+			"image_button[1.1,3.7;1,0.6;signs_lib_switch_"..
+			state..".png;"..
+			state..";;;false;signs_lib_switch_interm.png]"..
+			"button_exit[3,3.4;2,1;ok;"..S("Write").."]"
+	else
+		form = form.."button_exit[2,3.4;2,1;ok;"..S("Write").."]"
+	end
+
+	local meta = minetest.get_meta(pos)
+	meta:set_string("formspec", form)
 	local i = meta:get_string("infotext")
 	if i == "" then -- it wasn't even set, so set it.
 		meta:set_string("infotext", "")
@@ -449,18 +586,12 @@ signs_lib.construct_sign = function(pos)
 end
 
 function signs_lib.destruct_sign(pos)
-	local objects = minetest.get_objects_inside_radius(pos, 0.5)
-	for _, v in ipairs(objects) do
-		local e = v:get_luaentity()
-		if e and e.name == "signs_lib:text" then
-			v:remove()
-		end
-	end
+	signs_lib.delete_objects(pos)
 end
 
 local function make_infotext(text)
 	text = trim_input(text)
-	local lines = split_lines_and_words(text) or {}
+	local lines = signs_lib.split_lines_and_words(text) or {}
 	local lines2 = { }
 	for _, line in ipairs(lines) do
 		table.insert(lines2, (table.concat(line, " "):gsub("#[0-9a-fA-F]", ""):gsub("##", "#")))
@@ -475,50 +606,45 @@ function signs_lib.update_sign(pos, fields)
 	text = trim_input(text)
 
 	local owner = meta:get_string("owner")
-	ownstr = ""
+	local ownstr = ""
 	if owner ~= "" then ownstr = S("Locked sign, owned by @1\n", owner) end
 
 	meta:set_string("text", text)
 	meta:set_string("infotext", ownstr..make_infotext(text).." ")
-
-	local objects = minetest.get_objects_inside_radius(pos, 0.5)
-	local found
-	for _, v in ipairs(objects) do
-		local e = v:get_luaentity()
-		if e and e.name == "signs_lib:text" then
-			if found then
-				v:remove()
-			else
-				set_obj_text(v, text, nil, pos)
-				found = true
-			end
-		end
-	end
-	if found then
-		return
-	end
-
-	-- if there is no entity
-	local signnode = minetest.get_node(pos)
-	local signname = signnode.name
-	local def = minetest.registered_items[signname]
-	if not def.entity_info or not def.entity_info.yaw[signnode.param2 + 1] then return end
-	local obj = minetest.add_entity(pos, "signs_lib:text")
-
-	obj:setyaw(def.entity_info.yaw[signnode.param2 + 1])
-	obj:set_properties({
-		mesh = def.entity_info.mesh,
-	})
+	signs_lib.set_obj_text(pos, text)
 end
 
 function signs_lib.receive_fields(pos, formname, fields, sender)
-	if fields and fields.text and fields.ok and signs_lib.can_modify(pos, sender) then
+
+	if not fields or not signs_lib.can_modify(pos, sender) then return end
+
+	if fields.text and fields.ok then
 		minetest.log("action", S("@1 wrote \"@2\" to sign at @3",
 			(sender:get_player_name() or ""),
 			fields.text:gsub('\\', '\\\\'):gsub("\n", "\\n"),
 			minetest.pos_to_string(pos)
 		))
 		signs_lib.update_sign(pos, fields)
+	elseif fields.on or fields.off then
+		local node = minetest.get_node(pos)
+		local newname
+
+		if fields.on and string.find(node.name, "widefont") then
+			newname = string.gsub(node.name, "_widefont", "")
+		elseif fields.off and not string.find(node.name, "widefont") then
+			newname = make_widefont_nodename(node.name)
+		end
+		if newname then
+			minetest.log("action", S("@1 flipped the wide-font switch to \"@2\" at @3",
+				(sender:get_player_name() or ""),
+				(fields.on and "off" or "on"),
+				minetest.pos_to_string(pos)
+			))
+
+			minetest.swap_node(pos, {name = newname, param2 = node.param2})
+			signs_lib.construct_sign(pos)
+			signs_lib.update_sign(pos, fields)
+		end
 	end
 end
 
@@ -542,30 +668,6 @@ function signs_lib.can_modify(pos, player)
 	return false
 end
 
-local signs_text_on_activate = function(self)
-	local pos = self.object:getpos()
-	local meta = minetest.get_meta(pos)
-	local signnode = minetest.get_node(pos)
-	local signname = signnode.name
-	local def = minetest.registered_items[signname]
-	local text = meta:get_string("text")
-	if text and def and def.entity_info then
-		text = trim_input(text)
-		set_obj_text(self.object, text, nil, pos)
-		self.object:set_properties({
-			mesh = def.entity_info.mesh,
-		})
-	end
-end
-
-minetest.register_entity("signs_lib:text", {
-	collisionbox = { 0, 0, 0, 0, 0, 0 },
-	visual = "mesh",
-	mesh = "signs_lib_standard_wall_sign_entity.obj",
-	textures = {},
-	on_activate = signs_text_on_activate,
-})
-
 -- make selection boxes
 -- sizex/sizey specified in inches because that's what MUTCD uses.
 
@@ -602,6 +704,7 @@ function signs_lib.check_for_pole(pos, pointed_thing)
 		  or string.find(pnode.name, "default:fence_")
 		  or string.find(pnode.name, "_post")
 		  or string.find(pnode.name, "fencepost")
+		  or string.find(pnode.name, "streets:streetlamp_basic_top")
 		  or (pnode.name == "streets:bigpole" and pnode.param2 < 4)
 		  or (pnode.name == "streets:bigpole" and pnode.param2 > 19 and pnode.param2 < 24)
 		)
@@ -611,6 +714,22 @@ function signs_lib.check_for_pole(pos, pointed_thing)
 	end
 end
 
+function signs_lib.check_for_ceiling(pointed_thing)
+	if pointed_thing.above.x == pointed_thing.under.x
+	  and pointed_thing.above.z == pointed_thing.under.z
+	  and pointed_thing.above.y < pointed_thing.under.y then
+		return true
+	end
+end
+
+function signs_lib.check_for_floor(pointed_thing)
+	if pointed_thing.above.x == pointed_thing.under.x
+	  and pointed_thing.above.z == pointed_thing.under.z
+	  and pointed_thing.above.y > pointed_thing.under.y then
+		return true
+	end
+end
+
 function signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, locked)
 	local playername = placer:get_player_name()
 	local def = minetest.registered_items[itemstack:get_name()]
@@ -620,8 +739,23 @@ function signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, locke
 	local pdef = minetest.registered_items[pnode.name]
 
 	if (def.allow_onpole ~= false) and signs_lib.check_for_pole(pos, pointed_thing) then
+		local newparam2
+		local lookdir = minetest.yaw_to_dir(placer:get_look_horizontal())
+		if def.paramtype2 == "wallmounted" then
+			newparam2 = minetest.dir_to_wallmounted(lookdir)
+		else
+			newparam2 = minetest.dir_to_facedir(lookdir)
+		end
 		local node = minetest.get_node(pos)
-		minetest.swap_node(pos, {name = itemstack:get_name().."_onpole", param2 = node.param2})
+		minetest.swap_node(pos, {name = itemstack:get_name().."_onpole", param2 = newparam2})
+	elseif def.allow_hanging and signs_lib.check_for_ceiling(pointed_thing) then
+		local newparam2 = minetest.dir_to_facedir(placer:get_look_dir())
+		local node = minetest.get_node(pos)
+		minetest.swap_node(pos, {name = itemstack:get_name().."_hanging", param2 = newparam2})
+	elseif def.paramtype2 == "facedir" and signs_lib.check_for_ceiling(pointed_thing) then
+		minetest.swap_node(pos, {name = itemstack:get_name(), param2 = 6})
+	elseif def.paramtype2 == "facedir" and signs_lib.check_for_floor(pointed_thing) then
+		minetest.swap_node(pos, {name = itemstack:get_name(), param2 = 4})
 	end
 	if locked then
 		local meta = minetest.get_meta(pos)
@@ -634,6 +768,130 @@ function signs_lib.register_fence_with_sign()
 	minetest.log("warning", "[signs_lib] ".."Attempt to call no longer used function signs_lib.register_fence_with_sign()")
 end
 
+local function register_sign(name, rdef)
+	local def = table.copy(rdef)
+
+	if rdef.entity_info == "standard" then
+		def.entity_info = {
+			mesh = "signs_lib_standard_wall_sign_entity.obj",
+			yaw = signs_lib.wallmounted_yaw
+		}
+	elseif rdef.entity_info then
+		def.entity_info = rdef.entity_info
+	end
+
+	def.after_place_node = rdef.after_place_node or signs_lib.after_place_node
+
+	if rdef.entity_info then
+		def.on_rightclick       = rdef.on_rightclick       or signs_lib.construct_sign
+		def.on_construct        = rdef.on_construct        or signs_lib.construct_sign
+		def.on_destruct         = rdef.on_destruct         or signs_lib.destruct_sign
+		def.on_receive_fields   = rdef.on_receive_fields   or signs_lib.receive_fields
+		def.on_punch            = rdef.on_punch            or signs_lib.update_sign
+		def.number_of_lines     = rdef.number_of_lines     or signs_lib.standard_lines
+		def.horiz_scaling       = rdef.horiz_scaling       or signs_lib.standard_hscale
+		def.vert_scaling        = rdef.vert_scaling        or signs_lib.standard_vscale
+		def.line_spacing        = rdef.line_spacing        or signs_lib.standard_lspace
+		def.font_size           = rdef.font_size           or signs_lib.standard_fsize
+		def.x_offset            = rdef.x_offset            or signs_lib.standard_xoffs
+		def.y_offset            = rdef.y_offset            or signs_lib.standard_yoffs
+		def.chars_per_line      = rdef.chars_per_line      or signs_lib.standard_cpl
+		def.default_color       = rdef.default_color       or "0"
+		if rdef.locked and not rdef.after_place_node then
+			def.after_place_node = function(pos, placer, itemstack, pointed_thing)
+				signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, true)
+			end
+		end
+	end
+
+	def.paramtype           = rdef.paramtype           or "light"
+	def.drawtype            = rdef.drawtype            or "mesh"
+	def.mesh                = rdef.mesh                or "signs_lib_standard_wall_sign.obj"
+	def.wield_image         = rdef.wield_image         or def.inventory_image
+	def.drop                = rdef.drop                or name
+	def.sounds              = rdef.sounds              or signs_lib.standard_wood_sign_sounds
+	def.paramtype2          = rdef.paramtype2          or "wallmounted"
+	def.on_rotate           = rdef.on_rotate           or signs_lib.handle_rotation
+
+	if rdef.groups then
+		def.groups = rdef.groups
+	else
+		def.groups = signs_lib.standard_wood_groups
+	end
+
+	local cbox = signs_lib.make_selection_boxes(35, 25)
+
+	def.selection_box = rdef.selection_box or cbox
+	def.node_box      = table.copy(rdef.node_box or rdef.selection_box or cbox)
+
+	if def.sunlight_propagates ~= false then
+		def.sunlight_propagates = true
+	end
+
+	minetest.register_node(":"..name, def)
+	table.insert(signs_lib.lbm_restore_nodes, name)
+
+	if rdef.allow_onpole ~= false then
+
+		local opdef = table.copy(def)
+
+		local offset = 0.3125
+		if opdef.uses_slim_pole_mount then
+			offset = 0.35
+		end
+
+		opdef.selection_box = rdef.onpole_selection_box or opdef.selection_box
+		opdef.node_box = rdef.onpole_node_box or opdef.selection_box
+
+		if opdef.paramtype2 == "wallmounted" then
+			opdef.node_box.wall_side[1] = def.node_box.wall_side[1] - offset
+			opdef.node_box.wall_side[4] = def.node_box.wall_side[4] - offset
+
+			opdef.selection_box.wall_side[1] = def.selection_box.wall_side[1] - offset
+			opdef.selection_box.wall_side[4] = def.selection_box.wall_side[4] - offset
+		else
+			opdef.node_box.fixed[3] = def.node_box.fixed[3] + offset
+			opdef.node_box.fixed[6] = def.node_box.fixed[6] + offset
+
+			opdef.selection_box.fixed[3] = def.selection_box.fixed[3] + offset
+			opdef.selection_box.fixed[6] = def.selection_box.fixed[6] + offset
+		end
+
+		opdef.groups.not_in_creative_inventory = 1
+		opdef.tiles[3] = "signs_lib_pole_mount.png"
+		opdef.mesh = string.gsub(opdef.mesh, ".obj$", "_onpole.obj")
+
+		if opdef.entity_info then
+			opdef.entity_info.mesh = string.gsub(opdef.entity_info.mesh, ".obj$", "_onpole.obj")
+		end
+		minetest.register_node(":"..name.."_onpole", opdef)
+		table.insert(signs_lib.lbm_restore_nodes, name.."_onpole")
+	end
+
+	if rdef.allow_hanging then
+
+		local hdef = table.copy(def)
+		hdef.paramtype2 = "facedir"
+
+		local hcbox = signs_lib.make_selection_boxes(35, 32, nil, 0, 3, -18.5, true)
+
+		hdef.selection_box = rdef.hanging_selection_box or hcbox
+		hdef.node_box = rdef.hanging_node_box or rdef.hanging_selection_box or hcbox
+
+		hdef.groups.not_in_creative_inventory = 1
+		hdef.tiles[3] = "signs_lib_hangers.png"
+		hdef.mesh = string.gsub(string.gsub(hdef.mesh, "_facedir.obj", ".obj"), ".obj$", "_hanging.obj")
+
+		if hdef.entity_info then
+			hdef.entity_info.mesh = string.gsub(string.gsub(hdef.entity_info.mesh, "_facedir.obj", ".obj"), ".obj$", "_hanging.obj")
+			hdef.entity_info.yaw = signs_lib.standard_yaw
+		end
+
+		minetest.register_node(":"..name.."_hanging", hdef)
+		table.insert(signs_lib.lbm_restore_nodes, name.."_hanging")
+	end
+end
+
 --[[
 The main sign registration function
 ===================================
@@ -674,111 +932,15 @@ signs_lib.register_sign("foo:my_cool_sign", {
 ]]--
 
 function signs_lib.register_sign(name, rdef)
+	register_sign(name, rdef)
 
-	local def = table.copy(rdef)
+	if rdef.allow_widefont then
 
-	if rdef.entity_info == "standard" then
-		def.entity_info = {
-			mesh = "signs_lib_standard_wall_sign_entity.obj",
-			yaw = signs_lib.wallmounted_yaw
-		}
-	elseif rdef.entity_info then
-		def.entity_info = rdef.entity_info
-	end
+		local wdef = table.copy(minetest.registered_items[name])
+		wdef.groups.not_in_creative_inventory = 1
+		wdef.horiz_scaling = wdef.horiz_scaling / 2
 
-	if rdef.entity_info then
-		def.on_rightclick       = rdef.on_rightclick       or signs_lib.construct_sign
-		def.on_construct        = rdef.on_construct        or signs_lib.construct_sign
-		def.on_destruct         = rdef.on_destruct         or signs_lib.destruct_sign
-		def.on_receive_fields   = rdef.on_receive_fields   or signs_lib.receive_fields
-		def.on_punch            = rdef.on_punch            or signs_lib.update_sign
-		def.number_of_lines     = rdef.number_of_lines     or signs_lib.standard_lines
-		def.horiz_scaling       = rdef.horiz_scaling       or signs_lib.standard_hscale
-		def.vert_scaling        = rdef.vert_scaling        or signs_lib.standard_vscale
-		def.line_spacing        = rdef.line_spacing        or signs_lib.standard_lspace
-		def.font_size           = rdef.font_size           or signs_lib.standard_fsize
-		def.x_offset            = rdef.x_offset            or signs_lib.standard_xoffs
-		def.y_offset            = rdef.y_offset            or signs_lib.standard_yoffs
-		def.chars_per_line      = rdef.chars_per_line      or signs_lib.standard_cpl
-		def.default_color       = rdef.default_color       or "0"
-		if rdef.locked and not rdef.after_place_node then
-			def.after_place_node = function(pos, placer, itemstack, pointed_thing)
-				signs_lib.after_place_node(pos, placer, itemstack, pointed_thing, true)
-			end
-		else
-			def.after_place_node = rdef.after_place_node or signs_lib.after_place_node
-		end
-	end
-
-	def.paramtype           = rdef.paramtype           or "light"
-	def.paramtype2          = rdef.paramtype2          or "wallmounted"
-	def.drawtype            = rdef.drawtype            or "mesh"
-	def.mesh                = rdef.mesh                or "signs_lib_standard_wall_sign.obj"
-	def.wield_image         = rdef.wield_image         or def.inventory_image
-	def.drop                = rdef.drop                or name
-	def.sounds              = rdef.sounds              or signs_lib.standard_wood_sign_sounds
-	def.on_rotate           = rdef.on_rotate           or signs_lib.wallmounted_rotate
-
-	if rdef.on_rotate then
-		def.on_rotate = rdef.on_rotate
-	elseif rdef.drawtype == "wallmounted" then
-		def.on_rotate = signs_lib.wallmounted_rotate
-	else
-		def.on_rotate = signs_lib.facedir_rotate
-	end
-
-	if rdef.groups then
-		def.groups = rdef.groups
-	else
-		def.groups = signs_lib.standard_wood_groups
-	end
-
-	local cbox = signs_lib.make_selection_boxes(35, 25, allow_onpole)
-
-	def.selection_box = rdef.selection_box or cbox
-	def.node_box      = table.copy(rdef.node_box or rdef.selection_box or cbox)
-
-	if def.sunlight_propagates ~= false then
-		def.sunlight_propagates = true
-	end
-
-	minetest.register_node(":"..name, def)
-	table.insert(signs_lib.lbm_restore_nodes, name)
-
-	if rdef.allow_onpole ~= false then
-
-		local opdef = table.copy(def)
-
-		local offset = 0.3125
-		if opdef.uses_slim_pole_mount then
-			offset = 0.35
-		end
-
-		if opdef.paramtype2 == "wallmounted" then
-			opdef.node_box.wall_side[1] = def.node_box.wall_side[1] - offset
-			opdef.node_box.wall_side[4] = def.node_box.wall_side[4] - offset
-
-			opdef.selection_box.wall_side[1] = def.selection_box.wall_side[1] - offset
-			opdef.selection_box.wall_side[4] = def.selection_box.wall_side[4] - offset
-		else
-			opdef.node_box.fixed[3] = def.node_box.fixed[3] + offset
-			opdef.node_box.fixed[6] = def.node_box.fixed[6] + offset
-
-			opdef.selection_box.fixed[3] = def.selection_box.fixed[3] + offset
-			opdef.selection_box.fixed[6] = def.selection_box.fixed[6] + offset
-		end
-
-		opdef.groups.not_in_creative_inventory = 1
-		opdef.tiles[3] = "signs_lib_pole_mount.png"
-		opdef.mesh = string.gsub(opdef.mesh, ".obj$", "_onpole.obj")
-		opdef.on_rotate = nil
-
-
-		if opdef.entity_info then
-			opdef.entity_info.mesh = string.gsub(opdef.entity_info.mesh, ".obj$", "_onpole.obj")
-		end
-		minetest.register_node(":"..name.."_onpole", opdef)
-		table.insert(signs_lib.lbm_restore_nodes, name.."_onpole")
+		register_sign(name.."_widefont", wdef)
 	end
 end
 
@@ -816,12 +978,7 @@ minetest.register_lbm({
 			local oldfence =  signs_lib.old_fenceposts[node.name]
 			local newsign =   signs_lib.old_fenceposts_replacement_signs[node.name]
 
-			for _, v in ipairs(minetest.get_objects_inside_radius(pos, 0.5)) do
-				local e = v:get_luaentity()
-				if e and e.name == "signs_lib:text" then
-					v:remove()
-				end
-			end
+			signs_lib.delete_objects(pos)
 
 			local oldmeta = minetest.get_meta(pos):to_table()
 			minetest.set_node(pos, {name = oldfence})
@@ -884,12 +1041,7 @@ minetest.register_chatcommand("regen_signs", {
 
 		for _, b in pairs(allsigns) do
 			for _, pos in ipairs(b) do
-				local objects = minetest.get_objects_inside_radius(pos, 0.5)
-				if #objects > 0 then
-					for _, v in ipairs(objects) do
-						v:remove()
-					end
-				end
+				signs_lib.delete_objects(pos)
 				local node = minetest.get_node(pos)
 				local def = minetest.registered_items[node.name]
 				if def and def.entity_info then

models/signs_lib_standard_wall_sign_entity_hanging.obj

@@ -0,0 +1,15 @@
+# Blender v2.79 (sub 0) OBJ File: 'basic_signs wooden hanging sign.blend'
+# www.blender.org
+o Plane
+v 0.406250 -0.281250 -0.042969
+v -0.406250 -0.281250 -0.042969
+v 0.406250 0.281250 -0.042969
+v -0.406250 0.281250 -0.042969
+vt 0.000000 0.000000
+vt 1.000000 0.000000
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vn 0.0000 -0.0000 -1.0000
+g Plane_Plane_None
+s off
+f 1/1/1 2/2/1 4/3/1 3/4/1

models/signs_lib_standard_wall_sign_hanging.obj

@@ -0,0 +1,62 @@
+# Blender v2.79 (sub 0) OBJ File: 'basic_signs wooden hanging sign.blend'
+# www.blender.org
+o Cube
+v 0.437500 -0.312500 0.031250
+v 0.437500 -0.312500 -0.031250
+v 0.437500 0.312500 0.031250
+v 0.437500 0.312500 -0.031250
+v -0.437500 -0.312500 0.031250
+v -0.437500 -0.312500 -0.031250
+v -0.437500 0.312500 0.031250
+v -0.437500 0.312500 -0.031250
+v 0.437500 -0.312500 0.031250
+v 0.437500 -0.312500 -0.031250
+v 0.437500 0.312500 0.031250
+v 0.437500 0.312500 -0.031250
+v -0.437500 -0.312500 0.031250
+v -0.437500 -0.312500 -0.031250
+v -0.437500 0.312500 0.031250
+v -0.437500 0.312500 -0.031250
+v 0.500000 0.312500 -0.000000
+v 0.500000 0.500000 0.000000
+v -0.500000 0.312500 -0.000000
+v -0.500000 0.500000 0.000000
+vt 0.468750 0.812500
+vt 0.031250 0.812500
+vt 0.031250 0.187500
+vt 0.468750 0.187500
+vt 0.531250 0.812500
+vt 0.968750 0.812500
+vt 0.968750 0.187500
+vt 0.531250 0.187500
+vt 0.234375 0.000000
+vt 0.234375 1.000000
+vt 0.015625 1.000000
+vt 0.015625 -0.000000
+vt 0.609375 -0.000000
+vt 0.609375 1.000000
+vt 0.390625 1.000000
+vt 0.390625 -0.000000
+vt 0.765625 0.000000
+vt 0.765625 1.000000
+vt 1.000000 0.812500
+vt 1.000000 1.000000
+vt 0.000000 1.000000
+vt -0.000000 0.812500
+vn 0.0000 0.0000 -1.0000
+vn 0.0000 -0.0000 1.0000
+vn 0.0000 -1.0000 0.0000
+vn 0.0000 1.0000 0.0000
+vn 1.0000 -0.0000 0.0000
+vn -1.0000 -0.0000 0.0000
+g Cube_Cube_front-back
+s off
+f 8/1/1 4/2/1 2/3/1 6/4/1
+f 3/5/2 7/6/2 5/7/2 1/8/2
+g Cube_Cube_edges
+f 13/9/3 14/10/3 10/11/3 9/12/3
+f 11/13/4 12/14/4 16/15/4 15/16/4
+f 11/13/5 9/17/5 10/18/5 12/14/5
+f 13/9/6 15/16/6 16/15/6 14/10/6
+g Cube_Cube_hangers
+f 19/19/1 20/20/1 18/21/1 17/22/1

standard_signs.lua

@@ -7,7 +7,9 @@ signs_lib.register_sign("default:sign_wall_wood", {
 		"signs_lib_sign_wall_wooden.png",
 		"signs_lib_sign_wall_wooden_edges.png",
 	},
-	entity_info = "standard"
+	entity_info = "standard",
+	allow_hanging = true,
+	allow_widefont = true
 })
 
 signs_lib.register_sign("default:sign_wall_steel", {
@@ -20,9 +22,17 @@ signs_lib.register_sign("default:sign_wall_steel", {
 	groups = signs_lib.standard_steel_groups,
 	sounds = signs_lib.standard_steel_sign_sounds,
 	locked = true,
-	entity_info = "standard"
+	entity_info = "standard",
+	allow_hanging = true,
+	allow_widefont = true
 })
 
+minetest.register_alias("signs:sign_hanging", "default:sign_wall_wood_hanging")
+minetest.register_alias("basic_signs:hanging_sign", "default:sign_wall_wood_hanging")
+
+table.insert(signs_lib.lbm_restore_nodes, "signs:sign_hanging")
+table.insert(signs_lib.lbm_restore_nodes, "basic_signs:hanging_sign")
+
 -- insert the old wood sign-on-fencepost into signs_lib's conversion LBM
 
 table.insert(signs_lib.old_fenceposts_with_signs, "signs:sign_post")