Dwarf Fortress Bug Tracker - Dwarf Fortress
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IDProjectCategoryView StatusDate SubmittedLast Update
0010113Dwarf FortressAdventure Mode -- Displaypublic2017-01-11 11:062017-01-28 14:28
ReporterHinaichigo 
Assigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusnewResolutionopen 
PlatformOSOS Version
Product Version0.43.03 
Target VersionFixed in Version 
Summary0010113: 'Vision lost' in adventurer health screen with eyeless [EXTRAVISION] worm man adventurer
DescriptionAs a worm man, one has no eyes but can see via the [EXTRAVISION] tag.
In adventure mode, the health screen says 'vision lost' when you check it, despite vision being non-lost.
Steps To ReproducePlay as a worm man in adventure mode or arena mode.
Check the health screen.
Additional Information
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Issue History
Date ModifiedUsernameFieldChange
2017-01-11 11:06HinaichigoNew Issue
2017-01-26 20:59jjl2357Note Added: 0036222
2017-01-27 05:52FantasticDorfNote Added: 0036223
2017-01-27 18:18HinaichigoNote Added: 0036229
2017-01-27 18:21HinaichigoNote Edited: 0036229bug_revision_view_page.php?bugnote_id=0036229#r14589
2017-01-28 14:28FantasticDorfNote Added: 0036233
2017-01-28 14:29FantasticDorfNote Edited: 0036233bug_revision_view_page.php?bugnote_id=0036233#r14593

Notes
(0036222)
jjl2357   
2017-01-26 20:59   
"Vision lost" also appears on the Health z-tab when I tamed a bunch of voracious cave crawlers (which are also eyeless, [EXTRAVISION] creatures) in my fort.
(0036223)
FantasticDorf   
2017-01-27 05:52   
To my understanding its just a buggy game understanding of the game recognizing you have no eyes but the extra-vision giving you a field of sight anyway a bit like how forgotten creatures (and creatures with the ability to sense other creature classes in normal raws) can utilize targeted extra-vision to forever see a target through obstacles.

When loaded up in DFhack GM editor, there is no pre-existing (understood or displayed by the dfhack production team anyway) boolean true/false for [EXTRAVISION] only the absence of vision and good vision. When you receive significant eye damage, one switches over to the other.
(0036229)
Hinaichigo   
2017-01-27 18:18   
(edited on: 2017-01-27 18:21)
Do you mean to say that [EXTRAVISION] allows non-player creatures to see through walls?
(0036233)
FantasticDorf   
2017-01-28 14:28   
(edited on: 2017-01-28 14:29)
No, thats sensory vision (sensing a creature as defined in creature tokens/all creatures as a FB only ability) through walls and works differently so that they can always track down or attempt to path to a target even through walls & obstacles that would block sight.

[EXTRAVISION] allows you (and non-player creatures) to see in a normal fashion while otherwise your condition would be total blindness (or lack of bodypart eyes all together like blind cave ogres/bears which have no natural eyes & use [EXTRAVISION] to behave as normal creatures)