From 07e11427cf86de4554834fe1ebbb72531611774b Mon Sep 17 00:00:00 2001 From: octacian Date: Wed, 15 Mar 2017 22:03:52 -0700 Subject: [PATCH] Keys: Fix crash when using unconfigured default:key Since meta secret field is blank on any keys (default:key) obtained using /give, the game will crash if you attempt to use one of these. This follows along the principle that the game should never have any reason to crash. --- mods/default/functions.lua | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/mods/default/functions.lua b/mods/default/functions.lua index eeac0c2..bf3749a 100644 --- a/mods/default/functions.lua +++ b/mods/default/functions.lua @@ -562,7 +562,12 @@ function default.can_interact_with_node(player, pos) local key_meta = item:get_meta() if key_meta:get_string("secret") == "" then - key_meta:set_string("secret", minetest.parse_json(item:get_metadata()).secret) + local key_oldmeta = item:get_metadata() + if key_oldmeta == "" or not minetest.parse_json(key_oldmeta) then + return false + end + + key_meta:set_string("secret", minetest.parse_json(key_oldmeta).secret) item:set_metadata("") end