add selectable male/female skins

/skin <username> <m or f>

defaults to male if neither m nor f is specified.

command requires basic_privs

mods/mf_skins/depends.txt

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+default

mods/mf_skins/init.lua

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+-- simple male/female player textures mod
+-- based on player_textures by PilzAdam
+-- License:  WTFPL
+
+local worldpath = minetest.get_worldpath()
+local textures_config = worldpath.."/player_skins_db.txt"
+
+if io.open(textures_config, "r") ~= nil then
+	io.input(textures_config)
+	skins_cfg = io.read("*all")
+	print(dump(skins_cfg))
+	mf_skins_table = minetest.deserialize(skins_cfg)
+	io.close()
+end
+
+mf_skins_table = mf_skins_table or {}
+
+minetest.register_on_joinplayer(
+	function(player)
+		local pn = player:get_player_name()
+		local skin_name = "skin_"..pn
+
+		local skin_gender = { "player_male.png" }
+		print("Skin for "..pn.." was set to "..dump(mf_skins_table[skin_name]))
+		if mf_skins_table[skin_name] == "f" then
+			skin_gender = { "player_female.png" }
+		end
+
+		player:set_properties({
+			visual = "mesh",
+			visual_size = {x=1, y=1},
+			textures = skin_gender
+		})
+	end
+)
+
+-- commands
+
+minetest.register_chatcommand("skin", {
+    params = "name gender",
+    description = "Set a player's default skin to either male (m) or female (f).",
+    func = function(name, param)
+		if minetest.get_player_privs(name).basic_privs then
+			-- this line borrowed from worldedit
+			local _,_, username, gender = param:find("^([^%s]+)%s+(.+)$")
+
+			if minetest.auth_table[username] then
+				if gender ~= "f" and gender ~= "m" then gender = "m" end
+
+				mf_skins_table["skin_"..username] = gender
+				minetest.chat_send_player(name, "Set skin for "..username.." to "..gender)
+			else
+				minetest.chat_send_player(name, "That player does not exist.")
+			end
+		else
+				minetest.chat_send_player(name, "You are not authorized to run that command.")
+		end
+    end
+})
+
+minetest.register_on_shutdown(function()
+	print(dump(mf_skins_table))
+	local file = io.open(textures_config, "w")
+		file:write(minetest.serialize(mf_skins_table))
+	io.close()
+end)
+