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| author | Jeija <norrepli@gmail.com> | 2015-03-26 07:29:34 +0100 |
|---|---|---|
| committer | Jeija <norrepli@gmail.com> | 2015-03-26 07:29:34 +0100 |
| commit | b6ae419b009a2b547ec3ec40f76e4108194a2335 (patch) | |
| tree | 5aad085bcdf83b9ee56e9bcdff71523300ae7634 | |
| parent | a6d0a523ba896762ac8b0d327863e523ab86dc47 (diff) | |
Return if invalid parameters are given to node_detector_scan (e.g. unloaded area), should fix #228
| -rw-r--r-- | mesecons_detector/init.lua | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mesecons_detector/init.lua b/mesecons_detector/init.lua index 1a8595d..e589676 100644 --- a/mesecons_detector/init.lua +++ b/mesecons_detector/init.lua @@ -135,8 +135,12 @@ end -- returns true if player was found, false if not local node_detector_scan = function (pos) - local node = minetest.get_node(pos) - local frontpos = vector.subtract(pos, minetest.facedir_to_dir(node.param2)) + if not pos then return end + local node = minetest.get_node_or_nil(pos) + if not node then return end + local scandir = minetest.facedir_to_dir(node.param2) + if not scandir then return end + local frontpos = vector.subtract(pos, scandir) local frontnode = minetest.get_node(frontpos) local meta = minetest.get_meta(pos) return (frontnode.name == meta:get_string("scanname")) or |