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[Lofn]

So!  In 40d it was perfectly possible to tan the chitin of giant cave spiders or whatnot, yet it isn't in 2010.  So I added it. 

Update; I also made it into a SHELL material.

If you haven't touched material_template_default or b_detail_plan_default, you can download the relevant raws here.  Otherwise, you will need to install it manually by doing the following:

Spoiler: Method. (click to show/hide)

Stick this material definition into material_template_default, down the bottom.

Code: [Select]

[MATERIAL_TEMPLATE:TANNED_CHITIN_TEMPLATE]
[STATE_COLOR:ALL_SOLID:GRAY]
[STATE_NAME:ALL_SOLID:treated chitin]
[STATE_ADJ:ALL_SOLID:treated chitin]
[STATE_COLOR:LIQUID:GRAY]
[STATE_NAME:LIQUID:n/a]
[STATE_ADJ:LIQUID:n/a]
[STATE_COLOR:GAS:GRAY]
[STATE_NAME:GAS:n/a]
[STATE_ADJ:GAS:n/a]
[DISPLAY_COLOR:7:0:0]
[MATERIAL_VALUE:1]
[SPEC_HEAT:420]
[IGNITE_POINT:10508]
[MELTING_POINT:NONE]
[BOILING_POINT:NONE]
[HEATDAM_POINT:10250]
[COLDDAM_POINT:9900]
[MAT_FIXED_TEMP:NONE]
[SOLID_DENSITY:500]
[LIQUID_DENSITY:NONE]
[MOLAR_MASS:NONE]
[IMPACT_YIELD:10000]
[IMPACT_FRACTURE:10000]
[IMPACT_ELASTICITY:100]
[COMPRESSIVE_YIELD:10000]
[COMPRESSIVE_FRACTURE:10000]
[COMPRESSIVE_ELASTICITY:100]
[TENSILE_YIELD:10000]
[TENSILE_FRACTURE:10000]
[TENSILE_ELASTICITY:100]
[TORSION_YIELD:10000]
[TORSION_FRACTURE:10000]
[TORSION_ELASTICITY:100]
[SHEAR_YIELD:115000]
[SHEAR_FRACTURE:130000]
[SHEAR_ELASTICITY:100]
[BENDING_YIELD:10000]
[BENDING_FRACTURE:10000]
[BENDING_ELASTICITY:100]
[MAX_EDGE:1000]
[ABSORPTION:100]
[IMPLIES_ANIMAL_KILL]
[LEATHER]
[ITEMS_LEATHER]

Now add these lines to CHITIN_TEMPLATE in the same file.

Code: [Select]

[SHELL]
[ITEMS_HARD]
[ITEMS_SCALED]
[MATERIAL_REACTION_PRODUCT:TAN_MAT:LOCAL_CREATURE_MAT:TANNED_CHITIN]
Finally, add the following line to the CHITIN_MATERIALS body detail plan in b_detail_plan_default.txt.

Code: [Select]

[ADD_MATERIAL:TANNED_CHITIN:TANNED_CHITIN_TEMPLATE]

Currently, it's exactly the same as leather, but you can modify the values like you would with any other material.  Please comment if you have any trouble, as the manual installation may be a bit tricky.

[Deon]

I haven't played a lot with the new version, I've spent more time modding and testing new creatures and other fun stuff, what can you do with chitin without that tanning ability?

[Lofn]

Nothing, as far as my limited testing can tell.  It would be trivial to also add it as a crafting item, though.  It could even be made into [SHELL] and hence become craftable and useable to make armour.

[Acanthus117]

You never cease to amaze, Lofn, old buddy old pal.

YOU ARE A MODDING GOD, ALSO WITH THOSE OTHER GUIZ WHO DID ALL THAT COOL STUFF

[Max White]

Wait, we can't tan it now?

Hmm, well I think I would rather mod in some armor that can be made from it, if possible. Makes some level of sense that you can't tan the stuff.

[Lofn]

In a moment I'll update it, I added [SHELL], [ITEMS_BARRED] and [ITEMS_SCALED] to it, so you can make armour and crafts out of the treated/tanned chitin.

[Acanthus117]

awesome. I wanna armor my dwarves in chitinous armor and sell antman crafts to humans!

[Lofn]

I appear to have broken it slightly, stand by for a moment while I fix it.

[Lofn]

Alright, I have fixed it.  Raw, untreated chittin can be crafted into shell armour, while treated chitin (ie. tanned chitin) can be used to make leather items.

[NegaDwarf]

Glorious. That will help a great deal. Question is, besides Giant Cave Spiders, what else has chitin we can obtain, I wonder...

And hm. I tested this with reactions. Producing the tanned chitin was easy. Producing the Raw Chitin, however, doesn't work in the current version. I believe its similar to the bug that doesn't allow bones or shell to be made via smelter or other reactions going around.

Pity. -_-

Reaction Used:

Spoiler (click to show/hide)

[NAME:Make Chitin]
[BUILDING:CHEAT_WORKSHOP:NONE]
[PRODUCT:100:1:SKIN_RAW:NO_SUBTYPE:CREATURE_MAT:SPIDER_CAVE_GIANT:CHITIN]
[SKILL:SMELT]

Working Reaction:

Spoiler (click to show/hide)

[NAME:Make Chitin]
[BUILDING:CHEAT_WORKSHOP:NONE]
[PRODUCT:100:1:SKIN_TANNED:NO_SUBTYPE:CREATURE_MAT:SPIDER_CAVE_GIANT:CHITIN]
[SKILL:SMELT]

As you can see, SKIN_RAW simply doesn't work. It should. Tanned works.

[Mephansteras]

Interesting. Hadn't realized that chitin isn't currently usable. I'll have to do something similar for Civ Forge. Especially since I have domesticated beetles for people to slaughter.

[Lofn]

I believe that antmen have chitin, NegaDwarf.  I'm not altogether certain what else does.  I made this change mostly because I'm working on an insect civ with butcherable workers and it annoyed me that the chitin was wasted.

Mephansteras: feel free to just cannibalize my raws, I can't think of a simpler way to do it.

[Mephansteras]

Getting some strange behavior with this. I've gotten Sinew as a tanned leather from an insect race and some migrant showed up with 'cave crab fatty leggings'. Which just sounds gross.

[Lofn]

That's... rather bizarre.  I haven't got the faintest idea why sinew of all things would result from the tanning, it uses an identical setup to leather.

What exactly is a cave crab?  I noticed something similar, with 'giant cave spider fatty leggings'.  I have a suspicion that it will be a very simple but arcane fix.

EDIT: I'll be updating the file on DFFD in a few minutes, and making it somewhat more uninstall-friendly.  If I can find out wtf is causing these bugs, I'll also try and fix them.

[Mephansteras]

Cave Crab is just a modded in creature of mine. But it uses Chitin, which is why I mentioned it.