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IDProjectCategoryView StatusLast Update
0002416The Dark ModAIpublic06.10.2017 02:22
ReporterIshtvan Assigned Tograyman  
Status resolvedResolutionfixed 
Target VersionTDM 2.00Fixed in VersionTDM 2.00 
Summary0002416: Sleeping AI can fall through the ground when they wake up
DescriptionI'm not sure if this is a mapping error or code error, but sometimes if you wake up sleeping AI, they fall through the ground (then if you check the console you constantly get an error message about them being outside the world bounds, they probably keep falling forever). This happened to me in the Beleaguered Fence.
TagsNo tags attached.


duplicate of 0001874 resolved Sleeping AI - clipping and gravity issues 
related to 0001718 closedangua Problems with BJing sleeping AI 
related to 0002159 closedgrayman Sleepers play standing pain animation 




26.11.2010 16:28

developer   ~0003328

This also happens from time to time in test/ (although my changes to it might have reduced the change of it happening). Just start the map and shoot a waterarrow to the first sleeper and see if he falls through.


12.03.2012 05:08

administrator   ~0004397

This might be happening because the wake up animation is getting out of sync with its surroundings.

In each frame, the AI checks below his origin to see if he's on the ground. His origin stays with his feet when he's getting on and off the bed, so it moves from a spot on the surface of the bed to a spot on the floor when he's waking up. When the wake up animation is running, this check is useless, because the AI is treated as if he's non-solid. This might have been done to keep the AI from treating the bed like a floor when his origin is above it, which could end up with him standing on the bed.

If the animation is disrupted for any reason, the AI's origin could move down below the floor before the animation finishes and the floor-testing code treats the AI as solid again. By this time, his feet are below the floor, the code thinks he's floating and not on the ground, and he just keeps on going as gravity pulls him down.

The solution to this problem is going to require understanding how the animation gets out of sync with its surroundings.


28.03.2013 19:58

administrator   ~0005254

I’m not sure of the root cause of this problem, but doing the following caused it to stop:

1 - Disabled a Surprise animation when a rising AI is getting up from lying down and he enters Flee State when he sees the player before he’s standing.

2 - Disabled a sheathe weapon animation when the AI is getting up from lying down.

3 - Added a check during the animation for whether the AI’s origin has dropped below the floor. If the origin drops below the floor, it’s bumped up to where it belongs.

These changes appear to have stopped the bad behavior. In a map with 5 civilian sleepers, where 2 to 3 of them fell through the floor every time, none of them fall through now.

I also tested Beleaguered Fence, where the sleeping guard to the left of the door in the barracks fell through the floor most of the time when he spotted you in the middle of getting up.

rev. 5728:



28.03.2013 21:42

administrator   ~0005258

Wow, exciting to have this one fixed!


22.05.2013 20:02

administrator   ~0005492

Another round:

The Lich Queen in “Lich Queen’s Demise” fell through the floor when getting out of bed, and it was because she was stimmed by a light that needed relighting, and she decided she was going to do that. Corrected the problem by disallowing visual stims while sitting down, standing up from sitting or lying down, sleeping, and lying down.

Rev. 5799:



23.05.2013 00:08

administrator   ~0005496

We need spoiler code for the tracker!

Issue History

Date Modified Username Field Change
06.11.2010 05:26 Ishtvan New Issue
19.11.2010 11:19 tels Relationship added duplicate of 0001874
26.11.2010 16:28 tels Note Added: 0003328
12.03.2012 05:08 grayman Note Added: 0004397
28.03.2013 18:38 grayman Assigned To => grayman
28.03.2013 18:38 grayman Status new => assigned
28.03.2013 19:58 grayman Note Added: 0005254
28.03.2013 19:58 grayman Status assigned => resolved
28.03.2013 19:58 grayman Resolution open => fixed
28.03.2013 19:58 grayman Fixed in Version => TDM 2.00
28.03.2013 19:58 grayman Target Version => TDM 2.00
28.03.2013 21:42 Springheel Note Added: 0005258
22.05.2013 20:02 grayman Note Added: 0005492
23.05.2013 00:08 Springheel Note Added: 0005496
06.10.2017 02:19 nbohr1more Relationship added related to 0001718
06.10.2017 02:22 nbohr1more Relationship added related to 0002159