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Withered Split Bone

jenki258 edited this page Aug 23, 2026 · 3 revisions

Withered Split Bone

#BioForge #BioForge_V2_0 #Build_V0_54T #Item #Bone #LegacyUpdated

Registry ID: bioforge:withered_split_bone.

#Bones

Withered Split Bone is a calcified bone fragment obtained from wither skeletons (and other entities tagged as withered_skeleton_blood_sources) using the Bone Saw. It contains the blood data (type, amount, source) of the entity it was taken from. Unlike normal Split Bone, Withered Split Bone cannot be processed in a Centrifuge; it requires Decalcification Fluid to become usable Withered Bone Marrow.

Obtaining

  • Tool required: Bone Saw
  • Source entities: Any entity in the withered_skeleton_blood_sources tag (default: minecraft:wither_skeleton).
  • Process: Attack the entity with a Bone Saw. On successful hit:
    • The target loses 10 blood points.
    • A Withered Split Bone item is added to your inventory (or dropped on the ground if full).
    • The Bone Saw loses 1 durability and goes on cooldown (80 ticks / 4 seconds).

Properties

  • Stacks to: 1.
  • Contains: Obfuscated NBT data storing:
    • Blood amount
    • Blood type (e.g., A+, O-, Animal)
    • Source name (entity’s display name)
    • Source UUID

Tooltip

  • If containing blood:
    • Contains withered marrow sample (dark gray)
    • Requires decalcification before use (dark purple)
    • (No blood type shown - requires processing to Withered Bone Marrow first)
  • If empty (no blood data):
    • Empty withered bone fragment (dark gray)

Processing

Withered Split Bone must be decalcified using Decalcification Fluid to become usable with reagents. It cannot be used in a Centrifuge.

Once decalcified into Withered Bone Marrow, you can use it with reagents to determine the blood type.

Relation to Split Bone

  • Split Bone (normal) is obtained from regular skeletons and processed in a Centrifuge into Bone Marrow.
  • Withered Split Bone requires Decalcification Fluid instead of a Centrifuge, because the bone is calcified and must be softened chemically.

Notes

  • Withered Split Bone cannot be used directly with reagents (the code in ReagentVialItem only accepts NeedleItem, BoneMarrowItem, and WitheredBoneMarrowItem - not WitheredSplitBoneItem).
  • The blood data is obfuscated using NbtObfuscator.
  • If you have a Withered Split Bone, you must decalcify it before you can test its blood type.

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