Alien Vendetta Compatibility Issue

sonicdoommario

In Map07 of Alien Vendetta, you must kill all Arachnotrons and hit two switches to open up the exit. However, if you kill all of the Arachnotrons, the floor will raise up to the ceiling, making the exit inaccessible without IDCLIP. This behavior worked fine in the previous versions of Doomsday (1.8.6), where the floor would rise up to the other floors, creating a bridge to the exit.

ZDoom has this issue too, but they have a compatibility option called "Find Shortest Texture Like Doom" which fixed this little goof-up.

Would it be possible to investigate into this?

Thanks.

DaniJ

Please submit a bug report for this, though it is not strictly speaking a bug.

The original DOOM algorithm for this was flawed thus producing the very specific behaviour that the game relied upon. That algorithm was later fixed in BOOM thus there are now at least two different behaviours which ports must support.

Psychikon

Perhaps a newly-recognized linetype or XG implementation might be in order to help clear things up in the future? Just a suggestion!

DaniJ

Yes, the best way to address this would be to retain the original (flawed) algorithm for compatibility purposes and limited for use by the original line types.

The newer algorithm (which removes the shortcomings in the old implementation) would then be used everywhere else unless the old behaviour is explicitly requested (this could perhaps be a flag in the XG Line type definition).