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Feniks
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Posts: 84
Registered: 08-12


Honestly. If so, where it was and how many times?

Although Collin Phipps says it's extremely rare, it happened to me once, on that TVR/Revolution map where you are inside a giant worm. At first I was like, what the fuck, and I thought the author just experimented with the Doom mechanics and it was intentionally done to make the strange map even stranger. However, after reloading my saved game everything was fine again.

Besides that, I happen to see ghost monsters from time to time, usually in Alien Vendetta. Don't really know why, maybe because the maps are well-detailed and monster-laden at the same time.

Old Post Apr 23 2013 15:36 #
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printz
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Never, though the way it's described makes it seem ridiculously easy to trigger (shoot through too many linedefs?)

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Old Post Apr 23 2013 17:01 #
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dew
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a bunch of times. scythe2 map30 seems like a good candidate for replicating the bug. both me and anima got it there on demo.

Old Post Apr 23 2013 17:11 #
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Snakes
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Oddly enough, I encountered it on Scythe Map13.



I almost consider it a special occasion when it happens. Like I've spent so much cumulative time playing Doom that it's telling me to take a break.

Old Post Apr 23 2013 17:27 #
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Memfis
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Posts: 7112
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Yes but I turned its emulation off because while it's amusing, it ruins speedruns.
The best way to trigger it that I know is to play NUTS.wad on Nightmare, happens all the time. But sometimes it happens even in extremely simple situations, check out the infamous BLACKTWR uv-speed demo for example.

Old Post Apr 23 2013 17:30 #
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Jimi
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I made the supershotgun have millions of ammo and fire 1 shot per tic with dehacked. Then I loaded Go 2 It, ran around the level activating all the traps and started shooting. Pretty soon no one could hit anything anymore.

Never encountered it in regular play.

Old Post Apr 23 2013 18:12 #
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Gez
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Only on the Doom wiki, because I don't play vanilla anymore. :p

Old Post Apr 23 2013 18:15 #
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TimeOfDeath
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Intercepts overflows seem to be pretty frequent on the right maps. They kept happening on some of my maps so I turned off the emulation in prboom-plus, like Memfis said.

Old Post Apr 23 2013 18:30 #
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scifista42
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A long time ago I tried to deliberately cause it on MAP30. I read at that time that the bug is caused by a memory overflow, so I thought if I let too many monsters spawn in, the bug will occur (at that time I didn't know how to run PWADs in original engine, I only could launch Doom 2 in DOSBox). After (*only*) almost an hour (maybe only half an hour), I impatiently gave up.

EDIT: Now when I read your notes about intercepts, maybe I will repeat my experiment on a more suitable map.

Old Post Apr 23 2013 19:32 #
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C30N9
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Gez said:
Only on the Doom wiki, because I don't play vanilla anymore. :p

Gez isn't serious, for the first time.

Old Post Apr 23 2013 21:03 #
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Belial
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Bunch of times on h232, and on other maps as well.

Old Post Apr 23 2013 21:37 #
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Terra-jin
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Yeah I remember the first time that happened. I was playing one of my own WADs and in the middle of a fight everything... changed. Really weird experience. Took me a while to realize that I was a ghost myself... kinda my own personal Sixth Sense moment :P

Old Post Apr 23 2013 21:57 #
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BoldEnglishman
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I've encountered ghost monsters quite a few times, both in levels where they are intended to appear (like that one late level in Doom Jr... yeah) and in normal levels too. The all-ghosts bug is something I've never personally encountered, though this is partially due to the fact that I've been playing ZDoom/derivative source ports for probably over 10 years now.

Old Post Apr 24 2013 00:28 #
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TimeOfDeath
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Here's an all-ghosts bug map: interceptsoverflow.wad (-complevel 2, you can kill all monsters and exit)

Old Post Apr 24 2013 02:36 #
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scifista42
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Cool map, but

TimeOfDeath said:
you can kill all monsters and exit

How?

Old Post Apr 24 2013 17:02 #
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TimeOfDeath
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Lure the monsters into the KILL room (see automap) and then mutate.

Old Post Apr 24 2013 17:45 #
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Memfis
Honestly, semen doesn't taste that bad.


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Hmm, I can kill HKs with splash damage using automap and double IDDT to aim but I don't see any way to kill other monsters. I'm intrigued.
edit: and I don't understand how that KILL room could help, nothing special happens there...

Last edited by Memfis on Apr 24 2013 at 18:03

Old Post Apr 24 2013 17:49 #
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TimeOfDeath
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You have to press the switch before shooting to release most of the monsters, then lure into the kill room.

Old Post Apr 24 2013 17:57 #
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scifista42
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TimeOfDeath said:
Lure the monsters into the KILL room (see automap) and then mutate.

Thank you, now I was able to do it, but I don't understand what happened. How did you make the KILL room working?

Old Post Apr 24 2013 17:57 #
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TimeOfDeath
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I have no idea. :)
Also for some reason if I make the kill sector too wide, I can't shoot the monsters. And adding a kill sector next to the exit on the right didn't work either.

Old Post Apr 24 2013 18:05 #
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scifista42
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TimeOfDeath said:
I have no idea. :)

Ah.
This is so weird. From what I thought about all ghost bug, this (a place where the bug loses its effect) shouldn't have been even possible. And you say you don't know how you did it? Did you at least intend to make such sector when starting your map? Anyone knows something about that?

Old Post Apr 24 2013 18:16 #
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Larzuk
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This happened to me a couple times when I was recording my play through of Plutonia 2.

Old Post Apr 24 2013 18:20 #
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BaronOfStuff
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I've only encountered it when deliberately trying to; never during 'natural' play.

Old Post Apr 24 2013 18:27 #
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blackthrones
Newbie


Posts: 7
Registered: 05-13


I encountered it while I was testing one of my levels. Think it was caused by too many linedefs I used to make a complex symbol on the floor.

Does anyone know if there's any plans to fix this bug for good in future versions of Zdoom/GZDoom/Zandronum? (or be made into a toggle or something for the people who like the bug) I remember it was pretty annoying having that happen in my game when I wasn't intending it to. This was from a level I scrapped a year ago before my break from modding and I haven't made any insane amount of linedefs since.

Old Post May 16 2013 23:22 #
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