experience: store data in own folder

mods/experience/init.lua

@@ -47,20 +47,20 @@ minetest.register_on_dignode(function(pos, oldnode, digger)
 end)
 --give a new player some xp
 minetest.register_on_newplayer(function(player)
-	file = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "w")
+	file = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "w")
 	file:write("0")
 	file:close()
 end)
 --set player's xp level to 0 if they die
 minetest.register_on_dieplayer(function(player)
-	file = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "w")
+	file = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "w")
 	file:write("0")
 	file:close()
 end)
 local xp_hud = nil
 --hudbar by D00Med
 minetest.register_on_joinplayer(function(player)
-xp = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "r")
+xp = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "r")
 				experience = xp:read("*l")
 				xp:close()
 local playername = player:get_player_name()
@@ -88,7 +88,7 @@ end)
 
 minetest.register_globalstep(function(dtime)
 for _,player in ipairs(minetest.get_connected_players()) do
-xp = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "r")
+xp = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "r")
 				experience = xp:read("*l")
 				expe = experience/20
 				xp:close()
@@ -109,14 +109,14 @@ minetest.register_globalstep(function(dtime)
 				minetest.sound_play("orb", {
 					to_player = player:get_player_name(),
 				})
-				xp = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "r")
+				xp = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "r")
 				experience = tonumber(xp:read("*l"))
 				xp:close()
 				if experience ~= nil then
 					local xp_max = experience+1
 					if xp_max <= 1000 then
 					new_xp = experience + 1
-					xp_write = io.open(minetest.get_worldpath().."/"..player:get_player_name().."_experience", "w")
+					xp_write = io.open(minetest.get_worldpath().."/experience/"..player:get_player_name(), "w")
 					xp_write:write(new_xp)
 					xp_write:close()
 					if new_xp == level1 then