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|This article is about an older version of DF.|
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A Shell is produced by catching live seafood and then processing the raw catch at a Fishery with the clean fish job. Examples of shelled critters are raw turtles, oysters or mussels. It has been reported that in v0.31, a cave lobster does not produce a shell. Unlike in previous versions of the game, shells are not left behind when a dwarf cooks or eats a shelled creature. Shells currently cannot be acquired via trading. Turtles, crustaceans and shellfish purchased from traders have already been processed and had their shells removed.
Shells are considered to be a part of the turtle, oyster or mussel and not their own material type. They can be stored in a refuse stockpile, but may disappear due to vermin such as rats.
A killed snailman will also leave a shell behind.
Shells can be crafted at a craftsdwarf's workshop using the bone carver skill.
Adding Shells to Existing Creatures
The combination of the common requirement for shells during Strange Moods, the bug that causes shell-producing fish to be unavailable in many maps, the inability to trade for shells may lead to unresolvable Strange Moods. It is possible to modify the raws to allow other creatures to produce shells if the player is so inclined:
- In raw/objects/creature_domestic.txt, find "[CREATURE:COW]"
- Alter the [BODY] section to include ":SHELL" i.e, [BODY:QUADRUPED_HOOF:TAIL:2EYES:SHELL:BRAIN...]
- Add the [USE_MATERIAL_TEMPLATE:SHELL:SHELL_TEMPLATE] tag to the [BODY_DETAIL_PLAN:STANDARD_MATERIALS] section
- Add the [USE_TISSUE_TEMPLATE:SHELL:SHELL_TEMPLATE] tag to the [BODY_DETAIL_PLAN:STANDARD_TISSUES] section
- Add the [BODY_DETAIL_PLAN:SHELL_POSITIONS] tag to the creature
- If you wish to apply this change to a game in progress, remember to also alter the copy of creature_domestic.txt contained in your saves folder, as each game has its own copies of the raws.
Slaughtering a cow should now produce a "Stray Cow shell" usable by dwarves stuck in strange moods. Pay attention, that editing creature after creating world may cause later crashes when changing game's version. In fact, after porting the save to new version, the game will crash every time your dwarves try picking up the skeleton that previously had shell. It's strongly recommended to use the second way, as it doesn't add any new body part to creatures, but only add new way of using alreadty existing body part, which is much less crash provoking.
Enabling Other Materials to Be Used in Moods
If you don't want to add shells to existing creatures, you can enable other materials, like hooves or ivory to be used in strange moods instead of shells. The only effect is that the materials will be available for moods, you won't be able to eg. make shell crafts of them.
- In raw/objects/material_template_default.txt look up the material you want to enable, for example [MATERIAL_TEMPLATE:HOOF_TEMPLATE]
- Add the [SHELL] to the material
- If you wish to apply this change to a game in progress, remember to also alter the copy of material_template_default.txt contained in your saves folder. The change won't affect body parts that are already lying around, but will affect newly created body parts from butchered creatures.
- Processing a stack of raw turtles produces only one shell per stack, even if the stack contains more than one turtle. Bug:808
- Making crafts from a stack of shells (e.g. acquired from butchering a titan or forgotten beast) will consume the entire stack but only produce one set of crafts. Bug:3151