mods/HUD/mcl_experience/init.lua

@@ -156,7 +156,20 @@ function mcl_experience.throw_xp(pos, total_xp)
 	end
 end
 
-local function setup_hud(player)
+function mcl_experience.remove_hud(player)
+	if hud_bars[player] then
+		player:hud_remove(hud_bars[player])
+		hud_bars[player] = nil
+	end
+	if hud_levels[player] then
+		player:hud_remove(hud_levels[player])
+		hud_levels[player] = nil
+	end
+end
+
+function mcl_experience.setup_hud(player)
+	if hud_bars[player] and hud_levels[player] then return end
+	mcl_experience.remove_hud(player)
 	caches[player] = {
 		last_time = get_time(),
 	}
@@ -189,7 +202,7 @@ function mcl_experience.update(player)
 
 	if not minetest.is_creative_enabled(player:get_player_name()) then
 		if not hud_bars[player] then
-			setup_hud(player)
+			mcl_experience.setup_hud(player)
 		end
 		player:hud_change(hud_bars[player], "text", "mcl_experience_bar_background.png^[lowpart:"
 			.. math.floor(math.floor(xp_to_bar(xp, cache.level) * 18) / 18 * 100)
@@ -211,7 +224,7 @@ end
 -- callbacks
 
 minetest.register_on_joinplayer(function(player)
-	setup_hud(player)
+	mcl_experience.setup_hud(player)
 	mcl_experience.update(player)
 end)
 

mods/HUD/mcl_inventory/init.lua

@@ -206,6 +206,12 @@ local gamemodes = {
 function mcl_inventory.player_set_gamemode(p,g)
 	local m = p:get_meta()
 	m:set_string("gamemode",g)
+	if g == "survival" then
+		 mcl_experience.setup_hud(p)
+		 mcl_experience.update(p)
+	elseif g == "creative" then
+		 mcl_experience.remove_hud(p)
+	end
 	set_inventory(p)
 end