[Fixed] Heretic stuck dead imps

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Curunir
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Joined: Sun Nov 02, 2003 11:24 am
Graphics Processor: ATI/AMD with Vulkan/Metal Support

Heretic stuck dead imps

Post by Curunir »

Yes, I do play a lot of Heretic! :)
I have no clear memories of whether this happened when I played Heretic without Zdoom or not, but the Imps seem to get stuck when they're killed in a lot of places in mid air - close to a wall, or to the ceiling. It might have been this way before, but still, if a way can be found around it, it would be nice.
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Chilvence
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Post by Chilvence »

Yeah, they probably landed on each other, confusing the crash state (ie when it hits the ground) into thinking that they had landed on the ground. There are some things in heretic/hexen that stop being clipped to the floor when they land, for instance monster gibs.

So its probably the original behaviour.
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Curunir
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Post by Curunir »

That's fine. I could live with stuck imps (which I later found were named Gargoyles actually)
The thing is, noone's paying attention to the end-level screen bug which is a lot more in-your-face and bugs me (oh, teh play on word) a lot more. But I don't feel it's correct to spam the thread with more posts just to keep it up the list.
And that is why, I shamelessly mention it here :P
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HotWax
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Post by HotWax »

Curunir wrote:That's fine. I could live with stuck imps (which I later found were named Gargoyles actually)
The thing is, noone's paying attention to the end-level screen bug which is a lot more in-your-face and bugs me (oh, teh play on word) a lot more. But I don't feel it's correct to spam the thread with more posts just to keep it up the list.
And that is why, I shamelessly mention it here :P
He already fixed it. Check the thread (now in the Closed Bugs forum) here.
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Curunir
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Post by Curunir »

Ehh... :o
I'm too blind. Sorry. :roll:
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Graf Zahl
Lead GZDoom+Raze Developer
Lead GZDoom+Raze Developer
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Post by Graf Zahl »

Regarding the stuck imps. Yesterday I took a look at the death code of them and found something. It's definitely a bug in the original implementation.

If a Heretic imp dies an extreme death the function A_ImpXDeath1 is called which sets the NOGRAVITY flag. 3 frames later the function A_ImpXDeath2 is called which clears that flag again. The problem occurs when the imp hits something in between these 2 functions. It enters the crash state and never executes A_ImpXDeath2 so the NOGRAVITY flag is never cleared.
Fix: clear the NOGRAVITY flag in A_ImpExplode as well. That should fix this and possibly any other cause for a floating imp.
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randi
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Post by randi »

Fixed.
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