Never_Again Posted January 2, 2022 DoomWiki: Crushed monsters block player movement I did some tests with several early DOOM versions, starting with the original 1993-12-10 release, to test the above bug. Not an easy bug to reproduce. The current DoomWiki article didn't help: Quote Monsters that were killed first and then crushed would properly allow players to walk "through" the corpse. However, if the monster was killed by a crushing ceiling fast enough that no death animation played, and the monster immediately became a pool of blood, players and other monsters would not be able to cross over the pool of blood and would instead have to walk around it. The part after "However" appears to be wrong. Although I succeeded in reproducing the bug several times, the "no death animation played" scenario did not occur once. It looks like the correct condition is that the monster be crushed into a pool of blood before its death animation is finished. I ran the tests on all versions up to v1.25 (the Sybex exclusive) and there I could not reproduce the bug anymore. So one could deduct from this that it was fixed either in v1.25 or in a leaked v1.3 beta (of which I have none). Test WAD and two demos, one for v1.1 and one for v1.2: link. The first person to recognize the WAD this test map is based on without reading the accompanying TXT gets an Interwebz Cookie (TM). Pinging @Redneckerz. 10 Quote Share this post Link to post
Gez Posted January 2, 2022 (edited) I guess the bug would happen if the monster is crushed before A_Fall is called. Given that these actions are run immediately upon entering the state, that gives a window of time equal to one tic less than the duration of the previous frames of the death animation. So, if I haven't miscounted anything, that gives us: Possessed trooper or sergeant: 9 tics Imp (extreme death): 14 Lost soul: 17 tics Demon, spectre, or spiderdemon: 19 tics Imp (normal death): 21 tics Baron of Hell: 23 tics Cacodemon: 31 tics Cyberdemon: 49 tics Doom II monsters are ignored since this bug only occurs in versions where they weren't implemented yet. Edited January 2, 2022 by Gez 6 Quote Share this post Link to post
Eurisko Posted January 2, 2022 I’d never heard of this bug before. Interesting. 0 Quote Share this post Link to post
thiccyosh Posted January 2, 2022 I hereby summon thee one and only. 3:16 is the timestamp you'll want to look at in case the embed fricks up. 0 Quote Share this post Link to post
ViolentBeetle Posted January 2, 2022 I think this bug persists in some forms still, such as bugged barrels and also fairly niche event of crushing commander keen with with floor raising into ceiling (Might be different, but I think it is) 0 Quote Share this post Link to post
Redneckerz Posted January 2, 2022 6 hours ago, Never_Again said: Pinging @Redneckerz. I am summoned, and i send out my appreciation for this! However, what is it that you wish from me? Because honestly this sounds like something the real encyclopedian, Gez, could answer - And he did :P 1 hour ago, thiccyosh said: I hereby summon thee one and only. 3:16 is the timestamp you'll want to look at in case the embed fricks up. Isn't what you are showing an example of a Ghost Monster? I don't think that's what Never_Again is referencing here, although there are similarities. 1 Quote Share this post Link to post
thiccyosh Posted January 2, 2022 13 minutes ago, Redneckerz said: Isn't what you are showing an example of a Ghost Monster? I don't think that's what Never_Again is referencing here, although there are similarities. My point here, although I should've added another stamp where the explanation stops (whoops!), is that crushed corpses get the non-solid flag and that would make it impossible for the monsters' corpse to block you. Hence the bug doesn't work here. 0 Quote Share this post Link to post
Never_Again Posted February 2, 2022 On 1/2/2022 at 12:22 PM, Redneckerz said: I am summoned, and i send out my appreciation for this! However, what is it that you wish from me? The DoomWiki article is a mere stub, and you are the resident wiki honcho. No one to venture a guess about the origin of the test map in the first post? 0 Quote Share this post Link to post
Redneckerz Posted February 5, 2022 On 2/2/2022 at 11:15 PM, Never_Again said: The DoomWiki article is a mere stub, and you are the resident wiki honcho. No one to venture a guess about the origin of the test map in the first post? Was Gez's explanation not what you were looking for? Because i thought that made perfect sense (And Gez is the real DoomWikipedian around here!) 0 Quote Share this post Link to post
Never_Again Posted February 13, 2022 Oh, and I thought he was just a "Member". His explanation is fine, although its DoomWiki adaptation should probably be a little more verbose to be accessible to the layman. 0 Quote Share this post Link to post
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.