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IDProjectCategoryView StatusDate SubmittedLast Update
0007130Dwarf FortressPathfindingpublic2014-07-12 07:582018-01-19 16:25
Assigned ToToady One 
PlatformOSOS Version
Product Version0.40.02 
Target VersionFixed in Version0.44.06 
Summary0007130: you can climb diagonally through walls if there are twigs above the wall
Descriptionwhen the terrain is as follows (side view):

where # is wall and " is twigs or leaves from a tree and x is empty, it is possible to climb between the twigs and the x.
Steps To Reproducebuild walls as shown next to an existing tree (apparently trees will not grow on their own so close to the walls).
you can now climb through the wall where the tree is.
Additional InformationI found and tested this bug in arena mode, where I created the walls by placing water and magma.

PS: maybe a new category for climbing would be appropriate.
TagsClimbing, Intentional/Expected?, trees
Attached Files

- Relationships
related to 0007521resolvedToady One burning leaves over walls won't make floor appear (at least in arena mode) 
related to 0008383resolvedToady One Flying/swimming/climbing creatures can move vertically through diagonal gaps containing down-stairways 

-  Notes
shinziril (reporter)
2014-07-12 16:23

I don't think this is climbing-specific, I'm pretty sure flying creatures were able to do this in previous versions. It might even be intentional on Toady's part; if you have walls diagonally adjacent on the horizontal plane, you can walk between them the same way.
JoeJoe (reporter)
2014-07-12 20:46
edited on: 2014-07-20 20:51

did some further testing, apparently this is an extended result of issue 0007127, because no floor is placed on the twig tile when the wall is created, which might be intended.

Also, a creature that falls onto the open space tile after removing the tree/twigs will be "Flying" and unable to do anything until it dies of dehydration.

JoeJoe (reporter)
2014-07-20 14:33

behaviour is the same for version 0.40.04
Loci (manager)
2014-07-24 16:13

In v0.34, flying creatures could move vertically-diagonal through two walls only when the there was a stairway above the lower wall (side view):


Non-flying creatures cannot make the same movement (using a ramp in the lower tile), nor can liquid in the stairway diagonally descend.

Presumably the stairway is acting in a similar manner to override the floor implied by the wall below.

- Issue History
Date Modified Username Field Change
2014-07-12 07:58 JoeJoe New Issue
2014-07-12 07:59 JoeJoe Tag Attached: Climbing
2014-07-12 07:59 JoeJoe Tag Attached: trees
2014-07-12 08:27 Footkerchief Tag Attached: Intentional/Expected?
2014-07-12 16:23 shinziril Note Added: 0026045
2014-07-12 20:46 JoeJoe Note Added: 0026072
2014-07-20 14:33 JoeJoe Note Added: 0027064
2014-07-20 20:50 lethosor Description Updated View Revisions
2014-07-20 20:51 lethosor Note Edited: 0026072 View Revisions
2014-07-24 16:13 Loci Note Added: 0027456
2014-07-27 12:48 Footkerchief Relationship added related to 0002820
2014-08-18 13:35 Footkerchief Relationship added related to 0007521
2014-10-01 18:15 Footkerchief Relationship added related to 0008383
2014-10-01 18:15 Footkerchief Relationship deleted related to 0002820
2018-01-19 16:25 Toady One Status new => resolved
2018-01-19 16:25 Toady One Fixed in Version => Next Version
2018-01-19 16:25 Toady One Resolution open => fixed
2018-01-19 16:25 Toady One Assigned To => Toady One

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