Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0005894Dwarf FortressDwarf Mode -- Buildings, Machinespublic2012-05-15 09:582012-05-15 15:54
ReporterQuietust 
Assigned ToToady One 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusresolvedResolutionfixed 
PlatformOSOS Version
Product Version0.34.08 
Target VersionFixed in Version0.34.09 
Summary0005894: Rollers sometimes keep working even when powered off
DescriptionI built a long west->east roller along a track that led straight to a series of upward ramps (which were too steep), and after a short while the cart would start rapidly swapping between the ramp tile and the roller tile. Even after I turned off the rollers, the cart would continue bouncing back and forth as if it were being powered.

Side view:

> ___________ _
X|########## /#
X|######### /##
X|######## /###
<Crrrrrrrr/####
###############


If I send a dwarf to walk over the oscillating cart, it quickly gets beaten to death; upon deconstructing the rollers, the cart finally stops moving and can be safely collected.
Steps To Reproduce
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Issue History
Date ModifiedUsernameFieldChange
2012-05-15 09:58QuietustNew Issue
2012-05-15 10:18QuietustNote Added: 0022529
2012-05-15 11:26agNote Added: 0022531
2012-05-15 15:54Toady OneStatusnew => resolved
2012-05-15 15:54Toady OneFixed in Version => Next Version
2012-05-15 15:54Toady OneResolutionopen => fixed
2012-05-15 15:54Toady OneAssigned To => Toady One

Notes
(0022529)
Quietust   
2012-05-15 10:18   
I just tried again, and even if I place a new cart onto the unpowered rails (and ensure that there are no orders to move the cart), it still accelerates down the track on its own.
(0022531)
ag   
2012-05-15 11:26   
And IMHO, that amount of rollers should be capable of pushing the cart up that ramp: otherwise there is not much point in them really, because on level ground dwarves appear to push a cart with enough power it should be able to cross an average embark from side to side. If nothing else, maybe rollers placed directly on a ramp should push the cart up with constant minimum speed, so that at least it does go up.