Dwarf Fortress Bug Tracker - Dwarf Fortress
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0001209Dwarf FortressCreaturespublic2010-04-15 14:372014-03-25 15:07
lowtrivialhave not tried
needs feedbackopen 
0001209: Hyperspeed Rat, other vermin
In my current fortress, there is a rat in one of the carverns who moves insanely fast; about once per every 3 frames, where my dwarves were moving once every 20 frames. It looks really weird seeing a rat move at supersonic speed, but it doesn't impact gameplay much(aside from being distracting) because they don't attack dwarves or anything.
Only seems to have happened with this one rat.
No tags attached.
parent of 0006278resolved Toady One Speedy giant snails. 
has duplicate 0002073closed Logical2u Warp-Speed vermin 
Issue History
2010-04-15 14:37RandomnumbergeneratorNew Issue
2010-04-15 14:39FootkerchiefNote Added: 0003754
2010-05-26 05:11Logical2uRelationship addedhas duplicate 0002073
2010-05-26 05:12Logical2uSummaryHyperspeed Rat => Hyperspeed Rat, other vermin
2010-05-26 09:12DwarfuNote Added: 0007342
2010-06-21 21:13RandomnumbergeneratorNote Added: 0008933
2013-03-06 23:35DwarfuRelationship addedparent of 0006278
2013-04-23 12:24QuietustNote Added: 0023950
2014-03-25 09:55DwarfuNote Added: 0024621
2014-03-25 09:55DwarfuTag Attached: AWAITING UPDATE
2014-03-25 15:06DwarfuTag Detached: AWAITING UPDATE
2014-03-25 15:07DwarfuCategoryAnimal Populations => Creatures
2014-03-25 15:07DwarfuAssigned To => Dwarfu
2014-03-25 15:07DwarfuStatusnew => needs feedback

2010-04-15 14:39   
Yeah, this has been happening with other types of vermin too. I thought it was expected behavior when I saw it with bats (it looks awesome), but rats... not so much.
2010-05-26 09:12   
This is odd, at first I chalked it up to FPS improvements, etc.

They do have the same [SPEED] rates since 40d.

Does [BODY_SIZE] affect [SPEED]?
2010-06-21 21:13   
Unsure about body size... Seems unlikely though.

I'm not sure the RAWs have anything to do with it though, because it only happens occasionally. 98% of vermin are normal speed, but that 2% are just too fast... I've had this occurrence about 3 times now.
2013-04-23 12:24   
It's possible that this rat didn't have its caste set properly - currently, attempting to create a vermin using a custom reaction will result in this same behavior.
2014-03-25 09:55   
A save with one of these vermin on screen would be appreciated.