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| author | Gabriel Pérez-Cerezo <gabriel@gpcf.eu> | 2018-10-21 16:21:51 +0200 |
|---|---|---|
| committer | Gabriel Pérez-Cerezo <gabriel@gpcf.eu> | 2018-10-21 16:21:51 +0200 |
| commit | 4fb0956d56ab50241b39e140665150dba9414398 (patch) | |
| tree | bb245e86b15d2a015c84a4f1542d52c75a5f57d1 /advtrains/path.lua | |
| parent | d15210603f4654d20bc15be449cdc672dc4d53c5 (diff) | |
| download | advtrains-4fb0956d56ab50241b39e140665150dba9414398.tar.gz advtrains-4fb0956d56ab50241b39e140665150dba9414398.tar.bz2 advtrains-4fb0956d56ab50241b39e140665150dba9414398.zip | |
Various sanity checks against nil
These checks have been accumulated over time on linuxworks. They seem
to be necessary, minetest kept crashing when they were removed.
Diffstat (limited to 'advtrains/path.lua')
| -rw-r--r-- | advtrains/path.lua | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/advtrains/path.lua b/advtrains/path.lua index 506f27f..4955854 100644 --- a/advtrains/path.lua +++ b/advtrains/path.lua @@ -18,7 +18,7 @@ function advtrains.conway(midreal, prev, drives_on)--in order prev,mid,return local nconnid = advtrains.get_matching_conn(pconnid, #midconns) local next, next_connid, _, nextrailheight = advtrains.get_adjacent_rail(mid, midconns, nconnid, drives_on) - if not next then + if not next or not midconns or not midconns[nconnid] then return nil end return vector.add(advtrains.round_vector_floor_y(next), {x=0, y=nextrailheight, z=0}), midconns[nconnid].c |