Annoying Hexen crash in v1.8.7 and v2.0.03

[fr1dd]

Got a Hexen crash problem that occurs in v1.8.7 and v2.0.03. The crash does not occur in v2.0.01, v2.0.02 or v1.8.6 and down (only tested down to v1.8.2). No crash with ZDoom v2.7.1 either.

The crash occurs in MAP27 (cheatcode ''visit13'') at the lower stairway located directly to the right in the main hall. There are some dragon stonewalls that can be activated (to spin around) in the courtyard by a stoneswitch behind two trees.

When you approach the two first stonewalls closest to the main hall while they are spinning the game crashes instantly. When they stand still for a short moment or not have been triggered it works fine. But as soon they start spinning the game crashes. So it´s impossible to access those areas without the noclip cheatcode.

The game is run fresh without any config done.

[Kappes Buur]

Also happens with gzdoom-g2.1.pre-82-g5d032f3

After activating the switch, the polys start to turn.
Then, running up the corridor from the courtyard, GZDoom crashes when coming level with the second set of polys.

[Graf Zahl]

I already fixed that but haven't committed the fix yet because I need to make sure that the fix doesn't cause any other problems. This is caused by the polyobject BSP builder not initializing a few fields that GZDoom added to the segs.

[fr1dd]

I already fixed that but haven't committed the fix yet because I need to make sure that the fix doesn't cause any other problems. This is caused by the polyobject BSP builder not initializing a few fields that GZDoom added to the segs.

Nice to know that. Thumbs up .