Is there an existing issue for this?

• I have searched the existing issues.

Are you using the latest BlockUI Version?

• I am running the latest beta/release version of BlockUI for my Minecraft version.
  I am also running the latest versions of other mods that are part of my problem.

Minecraft Version

1.21

BlockUI Version

1.0.192-1.21.1-snapshot

Current Behavior

Capabilities are not implemented in FakeLevel.

Expected Behavior

Structurize expects that they are, in order to produce the correct resource list from a block that is not a Container but does have an IItemHandler capability (i.e. most modded storage blocks, including MineColonies racks).

Reproduction Steps

1. Place a rack with some items.
2. Scan it with Structurize.
3. With MineColonies loaded, build and Assign to Builder.
4. Observe that only the rack is listed in the required items.
5. When the builder builds it, it contains the items anyway.

Logs

n/a

Anything else?

This is not an issue in 1.20 because that doesn't use FakeLevel, and some common cases are read directly from NBT instead of querying item handlers, both of which were changed in 1.21.

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