Tamed mobs can now be named using nametag, also tamed npc's will attack anyone other than owner

README.txt

@@ -28,6 +28,7 @@ This mod contains the following additions:
 
 Changelog:
 
+1.22- Added ability to name tamed animals and npc using nametags, also npc will attack anyone who punches them apart from owner
 1.21- Added some more error checking to reduce serialize.h error and added height checks for falling off cliffs (thanks cmdskp)
 1.20- Error checking added to remove bad mobs, out of map limit mobs and stop serialize.h error
 1.19- Chickens now drop egg items instead of placing the egg, also throwing eggs result in 1/8 chance of spawning chick

api.lua

@@ -1,4 +1,4 @@
--- Mobs Api (21st December 2015)
+-- Mobs Api (28th December 2015)
 mobs = {}
 mobs.mod = "redo"
 
@@ -1621,6 +1621,7 @@ minetest.register_entity(name, {
 
 		-- set anything changed above
 		self.object:set_properties(self)
+		self.object:set_properties({nametag_color = "#FFFF00"})
 	end,
 
 	get_staticdata = function(self)
@@ -1737,7 +1738,8 @@ minetest.register_entity(name, {
 
 		-- attack puncher and call other mobs for help
 		if self.passive == false
-		and not self.tamed then
+		and self.child == false
+		and hitter:get_player_name() ~= self.owner then
 
 			if self.state ~= "attack" then
 				do_attack(self, hitter)
@@ -2172,6 +2174,9 @@ function mobs:capture_mob(self, clicker, chance_hand, chance_net, chance_lasso,
 	end
 end
 
+local current_obj = {}
+local current_stack = {}
+
 -- feeding, taming and breeding (thanks blert2112)
 function mobs:feed_tame(self, clicker, feed_count, breed, tame)
 
@@ -2252,7 +2257,57 @@ function mobs:feed_tame(self, clicker, feed_count, breed, tame)
 		end
 
 		return true
-	else
-		return false
 	end
-end
+
+	local item = clicker:get_wielded_item()
+
+	-- if mob has been tamed you can name it with a nametag
+	if item:get_name() == "mobs:nametag"
+	and clicker:get_player_name() == self.owner then
+
+		local player_name = clicker:get_player_name()
+
+		current_obj[player_name] = self
+		current_stack[player_name] = item
+
+		local tag = self.nametag or ""
+
+		local formspec = "size[8,4]"
+			.. default.gui_bg
+			.. default.gui_bg_img
+			.. "field[0.5,1;7.5,0;name;Name:;" .. tag .. "]"
+			.. "button_exit[2.5,3.5;3,1;save_name;Save name]"
+			core.show_formspec(player_name, "mobs_nametag", formspec)
+	end
+
+	return false
+
+end
+
+-- borrowed from blockmen's nametag mod
+minetest.register_on_player_receive_fields(function(player, form_name, fields)
+
+	if form_name ~= "mobs_nametag" or not fields.save_name or fields.name == "" then
+		return
+	end
+
+	local name = player:get_player_name()
+	local obj = current_obj[name]
+
+	if obj and obj.object then
+
+		obj.object:set_properties({nametag = fields.name, nametag_color = "#FFFF00"})
+		obj.nametag = fields.name
+		current_obj[name] = nil
+
+		if not core.setting_getbool("creative_mode") then
+
+			local itemstack = current_stack[name]
+
+			itemstack:take_item()
+			player:set_wielded_item(itemstack)
+		end
+
+		current_stack[name] = nil
+	end
+end)

crafts.lua

@@ -1,3 +1,15 @@
+-- nametag
+minetest.register_craftitem("mobs:nametag", {
+	description = "Nametag",
+	inventory_image = "mobs_nametag.png",
+})
+
+core.register_craft({
+	type = "shapeless",
+	output = "mobs:nametag",
+	recipe = {"default:paper", "dye:black"},
+})
+
 -- leather
 minetest.register_craftitem("mobs:leather", {
 	description = "Leather",