Add entity nametags to hide nametags behind nodes

mods/ctf_pvp_engine

@@ -1 +1 @@
-Subproject commit 8b12a8e4f12ec12a076a161b7ed808ab147e785f
+Subproject commit 87d0438db65a41780d02431aee5a286d65a86059

mods/ctf_userlimit/init.lua

@@ -1,7 +1,9 @@
-minetest.register_can_bypass_userlimit(function(name, ip)
+if minetest.register_can_bypass_userlimit then
+	minetest.register_can_bypass_userlimit(function(name, ip)
 		local pstat, discard = ctf_stats.player_or_nil(name)
 		local actual_max_users = tonumber(minetest.settings:get("max_users")) +
 			tonumber(minetest.settings:get("max_extra_users") or "10")
 		local req_score = tonumber(minetest.settings:get("userlimit_bypass_required_score") or "10000")
 		return pstat and pstat.score > req_score and #minetest.get_connected_players() < actual_max_users
-end)
+	end)
+end

mods/gauges/init.lua

@@ -48,7 +48,7 @@ local function add_HP_gauge(name)
 		local pos = player:get_pos()
 		local ent = minetest.add_entity(pos, "gauges:hp_bar")
 		if ent ~= nil then
-			ent:set_attach(player, "", {x = 0, y = 10, z = 0}, {x = 0, y = 0, z = 0})
+			ent:set_attach(player, "", {x = 0, y = 9, z = 0}, {x = 0, y = 0, z = 0})
 			ent = ent:get_luaentity()
 			ent.wielder = player:get_player_name()
 		end

mods/playertag/README.md

@@ -0,0 +1,5 @@
+This mod hides the existing tags, and adds entity based tags that are only as visible as the player.
+
+Some code taken from gauges (CC0 1.0) https://forum.minetest.net/viewtopic.php?t=10250
+And also some code and textures from npcf (LGPL for code, WTFPL for textures) https://forum.minetest.net/viewtopic.php?t=7321
+My part of the code is WTFPL.

mods/playertag/api.lua

@@ -0,0 +1,148 @@
+local nametags = {}
+local tag_settings = {}
+local ATTACH_POSITION = minetest.rgba and {x=0,y=20,z=0} or {x=0,y=10,z=0}
+
+local TYPE_BUILTIN = 0
+local TYPE_ENTITY = 1
+playertag = {
+	TYPE_BUILTIN = TYPE_BUILTIN,
+	TYPE_ENTITY  = TYPE_ENTITY,
+}
+
+local function add_entity_tag(player)
+	local ent = minetest.add_entity(player:get_pos(), "playertag:tag")
+
+	-- Build name from font texture
+	local color = "W"
+	local texture = "npcf_tag_bg.png"
+	local x = math.floor(134 - ((player:get_player_name():len() * 11) / 2))
+	local i = 0
+	player:get_player_name():gsub(".", function(char)
+		if char:byte() > 64 and char:byte() < 91 then
+			char = "U"..char
+		end
+		texture = texture.."^[combine:84x14:"..(x+i)..",0="..color.."_"..char..".png"
+		i = i + 11
+	end)
+	ent:set_properties({ textures={texture} })
+
+	-- Attach to player
+	ent:set_attach(player, "", ATTACH_POSITION, {x=0,y=0,z=0})
+	ent:get_luaentity().wielder = player:get_player_name()
+
+	-- Store
+	nametags[player:get_player_name()] = ent
+
+	-- Hide fixed nametag
+	player:set_nametag_attributes({
+		color = {a = 0, r = 0, g = 0, b = 0}
+	})
+end
+
+local function remove_entity_tag(player)
+	tag_settings[player:get_player_name()] = nil
+	local tag = nametags[player:get_player_name()]
+	if tag then
+		tag:remove()
+		tag = nil
+	end
+end
+
+local function update(player, settings)
+	tag_settings[player:get_player_name()] = settings
+
+	if settings.type == TYPE_BUILTIN then
+		minetest.log("error", "type: builtin")
+		remove_entity_tag(player)
+		print(dump(settings.color))
+		player:set_nametag_attributes({
+			color = settings.color
+		})
+	elseif settings.type == TYPE_ENTITY then
+		minetest.log("error", "type: entity")
+		add_entity_tag(player)
+	end
+end
+
+function playertag.set(player, type, color)
+	local oldset = tag_settings[player:get_player_name()]
+	color = color or { a=255, r=255, g=255, b=255 }
+	if not oldset or oldset.type ~= type or oldset.color ~= color then
+		minetest.log("error", "updating")
+		update(player, { type = type, color = color })
+	end
+end
+
+local nametag = {
+	npcf_id = "nametag",
+	physical = false,
+	collisionbox = {x=0, y=0, z=0},
+	visual = "sprite",
+	textures = {"default_dirt.png"},--{"npcf_tag_bg.png"},
+	visual_size = {x=2.16, y=0.18, z=2.16},--{x=1.44, y=0.12, z=1.44},
+}
+
+function nametag:on_activate(staticdata, dtime_s)
+	if staticdata == "expired" then
+		minetest.log("error", "Nametag expired, removing")
+		local name = self.wielder and self.wielder:get_player_name()
+		if name and nametags[name] == self.object then
+			nametags[name] = nil
+		end
+
+		self.object:remove()
+	end
+end
+
+function nametag:get_staticdata()
+	return "expired"
+end
+
+minetest.register_chatcommand("a", {
+	func = function(name)
+		playertag.set(minetest.get_player_by_name(name), TYPE_BUILTIN)
+	end
+})
+
+function nametag:on_step(dtime)
+	local name = self.wielder
+	local wielder = name and minetest.get_player_by_name(name)
+	if not wielder then
+		minetest.log("error", "no such wielder, removing")
+		self.object:remove()
+	elseif not tag_settings[name] or tag_settings[name].type ~= TYPE_ENTITY then
+		minetest.log("error", "wrong player setting, removing")
+		if name and nametags[name] == self.object then
+			nametags[name] = nil
+		end
+
+		self.object:remove()
+	end
+end
+
+minetest.register_entity("playertag:tag", nametag)
+
+local function step()
+	for _, player in pairs(minetest.get_connected_players()) do
+		local settings = tag_settings[player:get_player_name()]
+		if settings and settings.type == TYPE_ENTITY then
+			local ent = nametags[player:get_player_name()]
+			if not ent or ent:get_luaentity() == nil then
+				add_entity_tag(player)
+			else
+				ent:set_attach(player, "", ATTACH_POSITION, {x=0,y=0,z=0})
+			end
+		end
+	end
+
+	minetest.after(10, step)
+end
+minetest.after(10, step)
+
+minetest.register_on_joinplayer(function(player)
+	playertag.set(player, TYPE_ENTITY)
+end)
+
+minetest.register_on_leaveplayer(function (player)
+	remove_entity_tag(player)
+end)

mods/playertag/depends.txt

@@ -0,0 +1 @@
+ctf_flag

mods/playertag/init.lua

@@ -0,0 +1,14 @@
+dofile(minetest.get_modpath("playertag") .. "/api.lua")
+
+ctf_flag.register_on_pick_up(function(attname, flag)
+	playertag.set(minetest.get_player_by_name(attname), playertag.TYPE_BUILTIN,
+			{ a=255, r=255, g=0, b=0 })
+end)
+
+ctf_flag.register_on_drop(function(attname, flag)
+	playertag.set(minetest.get_player_by_name(attname), playertag.TYPE_ENTITY)
+end)
+
+ctf_flag.register_on_capture(function(attname, flag)
+	playertag.set(minetest.get_player_by_name(attname), playertag.TYPE_ENTITY)
+end)