Check for NaN values in settings

moremesecons_teleporter/init.lua

@@ -13,10 +13,14 @@ local teleport_nearest = function(pos)
 	local MAX_TELEPORTATION_DISTANCE = tonumber(minetest.setting_get("moremesecons_teleporter.max_t2t_distance")) or 50
 	if MAX_TELEPORTATION_DISTANCE <= 0 then
 		MAX_TELEPORTATION_DISTANCE = 1
+	elseif MAX_TELEPORTATION_DISTANCE ~= MAX_TELEPORTATION_DISTANCE then -- NaN
+		MAX_TELEPORTATION_DISTANCE = 50
 	end
 	local MAX_PLAYER_DISTANCE = tonumber(minetest.setting_get("moremesecons_teleporter.max_p2t_distance")) or 25
 	if MAX_PLAYER_DISTANCE <= 0 then
 		MAX_PLAYER_DISTANCE = 1
+	elseif MAX_PLAYER_DISTANCE ~= MAX_PLAYER_DISTANCE then -- NaN
+		MAX_PLAYER_DISTANCE = 25
 	end
 
 	-- Search the nearest player