Binoculars: Only set property if necessary to reduce mesh reloading

Author: paramat

mods/binoculars/init.lua

@@ -3,7 +3,12 @@
 binoculars = {}
 
 
--- Cache creative mode setting
+-- Detect creative mod
+
+local creative_mod = minetest.get_modpath("creative")
+
+
+-- Cache creative mode setting as fallback if creative mod not present
 
 local creative_mode_cache = minetest.settings:get_bool("creative_mode")
 
@@ -13,14 +18,13 @@ local creative_mode_cache = minetest.settings:get_bool("creative_mode")
 
 function binoculars.update_player_property(player)
 	local creative_enabled =
-		(creative and creative.is_enabled_for(player:get_player_name())) or
+		(creative_mod and creative.is_enabled_for(player:get_player_name())) or
 		creative_mode_cache
-
-	if creative_enabled or
-			player:get_inventory():contains_item("main", "binoculars:binoculars") then
-		player:set_properties({can_zoom = true})
-	else
-		player:set_properties({can_zoom = false})
+	-- Only set property if necessary to avoid player mesh reload
+	local new_can_zoom = creative_enabled or player:get_inventory():contains_item(
+			"main", "binoculars:binoculars")
+	if player:get_properties().can_zoom ~= new_can_zoom then
+		player:set_properties({can_zoom = new_can_zoom})
 	end
 end