Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0011011Dwarf FortressThrowing/Shootingpublic2019-01-25 21:222019-04-20 09:24
Reportermattvt3 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformPCOSWindowsOS VersionWindows
Product Version0.44.12 
Target VersionFixed in Version 
Summary0011011: Catapult/Ballista projectile falls z-level through solid floor
DescriptionI constructed 4 catapults on a level (z-0) that fire projectiles 0000009:0000007 tiles against a wall with a channeled floor. The level below (z-1) contains both a solid (chalk) floor (which collect 2 catapults ammo) and a microcline floor (which collect 2 catapults ammo, made during troubleshooting). The effect of this setup is that dwarves practice siege engine operating and I do not lose endless stone (since dropping a z level preserves the stone).

This has worked perfectly in previous games, and in this game the stones are still not lost .. but they inexplicably drop an extra level through the solid floor (z-2). I first thought they were being destroyed, but noticed they all fall through 100% of the time.
Steps To ReproduceThe attached save has the catapults on continual firing mode, so have to wait just a bit for a dwarf to get to one and fire a rock. Then you will see it (stepping through in slow motion if you want), travel down to z-1 and then z-2.
Additional InformationFile for download - http://dffd.bay12games.com/file.php?id=14211 [^]
TagsNo tags attached.
Relationships
child of 0010830confirmed Loci Falling objects (bolts, body parts, etc.) glitch through floor into rooms below 
Attached Files
Issue History
Date ModifiedUsernameFieldChange
2019-01-25 21:22mattvt3New Issue
2019-01-25 21:29mattvt3Note Added: 0039152
2019-01-25 23:27PatrikLundellNote Added: 0039153
2019-01-26 05:43RafatioNote Added: 0039154
2019-01-27 15:24LociRelationship addedchild of 0010830
2019-01-27 15:26LociNote Added: 0039157
2019-04-20 02:15elfrickoNote Added: 0039338
2019-04-20 09:24LociSummaryCatapult projectile falls z-level through solid floor => Catapult/Ballista projectile falls z-level through solid floor

Notes
(0039152)
mattvt3   
2019-01-25 21:29   
I do not use dfhack. Vanilla dwarf fortress.
(0039153)
PatrikLundell   
2019-01-25 23:27   
There's a similar issue with all kinds of flying stuff: arrows fall through floors sometimes, as do body parts. I'm not compatible with Mantis' search feature, though, so I've failed to locate that bug report.
(0039154)
Rafatio   
2019-01-26 05:43   
should be 0010830
(0039157)
Loci   
2019-01-27 15:26   
Thanks!
(0039338)
elfricko   
2019-04-20 02:15   
I got that problem with Ballista Arrows, the hit a Bridge and should fall one Z-level where they should get picked up but instead they fall 2 z-levels despite there is on solid ground on the first z-level below the shot