Dwarf Fortress Bug Tracker - Dwarf Fortress
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0001110Dwarf FortressItemspublic2010-04-13 16:532010-07-20 12:59
Toady One 
normalmajorhave not tried
0001110: impact yield and impact fracture the same for all metals, unbalances combat
As the summary says, impact_yield and impact_fracture are the same (1080000, stainless steel) for all metals. This means non-steel armor protects too good, and nonsteel weapons are too strong.

For details on the impact this has, see here:
http://www.bay12games.com/forum/index.php?topic=53571.msg1153120#msg1153120 [^]
My own information is purely based on the raws, this forum post and observations during gameplay. I did not do any tests that included changing those values myself.
material, metal, raw files
related to 0000033resolved Toady One Bronze colossus, skeletal creatures, fleshballs, and others are impossible to kill 
Issue History
2010-04-13 16:53SyndicNew Issue
2010-04-13 16:54SyndicTag Attached: material
2010-04-13 16:54SyndicTag Attached: raw files
2010-04-13 18:54Khym ChanurIssue Monitored: Khym Chanur
2010-04-14 12:41lord_chaos22000Issue Monitored: lord_chaos22000
2010-04-14 12:59NobuIssue Monitored: Nobu
2010-04-19 06:44TodestoolNote Added: 0004221
2010-06-08 16:13Hieronymous AlloyIssue Monitored: Hieronymous Alloy
2010-06-08 16:14FootkerchiefSticky IssueNo => Yes
2010-06-18 10:03izzyIssue Monitored: izzy
2010-06-20 08:57Jiri PetruNote Added: 0008772
2010-06-20 09:13FootkerchiefRelationship addedrelated to 0000033
2010-06-20 17:12Jiri PetruNote Added: 0008818
2010-07-06 02:03Toady OneNote Added: 0009672
2010-07-06 02:03Toady OneStatusnew => resolved
2010-07-06 02:03Toady OneFixed in Version => 0.31.09
2010-07-06 02:03Toady OneResolutionopen => fixed
2010-07-06 02:03Toady OneAssigned To => Toady One
2010-07-10 01:25Khym ChanurIssue End Monitor: Khym Chanur
2010-07-10 05:55TomiTapioTag Attached: metal
2010-07-12 12:53FootkerchiefSticky IssueYes => No
2010-07-20 12:59Hieronymous AlloyIssue End Monitor: Hieronymous Alloy

2010-04-19 06:44   
I did a bit of research on what these values should be, and determined that for metals compressive strength ~= tensile strength. I copy/pasted the shear yield and fracture values into the impact yield and fracture tags, and arena mode showed this to be far more reasonable.

Forum post:
http://www.bay12games.com/forum/index.php?topic=53571.msg1169077#msg1169077 [^]
Jiri Petru   
2010-06-20 08:57   
There have been a couple of threads discussing proper raw values, most notably these:

http://www.bay12forums.com/smf/index.php?topic=55348 [^]
http://www.bay12forums.com/smf/index.php?topic=53100 [^]
Jiri Petru   
2010-06-20 17:12   
While I'm infodumping, there's a useful thread with test results from arena. It describes several other material and combat related issues:

http://www.bay12forums.com/smf/index.php?topic=52120.0 [^]
Toady One   
2010-07-06 02:03   
I've updated all the metals so that they have Dwarfoloid's suggested values, and I've made compression/impact a fixed multiple of the tensile strength (because it was generally higher for iron, and there's very little data available).