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.
This commit is contained in:
octacian 2017-03-15 22:03:52 -07:00 committed by paramat
parent 68212967c0
commit 07e11427cf
1 changed files with 6 additions and 1 deletions

View File

@ -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