# HyperTwist Phase 4R Packet 4R-B MagicCube4D Adapter Implementation

Created on `2026-05-13`

## Status

`Phase 4R / Packet 4R-B` is now `closed`.

This packet converts the retained boundary-sensitive `cutelyaware/magiccube4d` row from a queued attributed donor beneath the `Hyperspeedcube` anchor into a landed first-party HyperTwist legacy `4D` interaction, history, macro, topology-reference, and attribution-boundary lane.

It does not reopen `Phase 0R`, `Phase 1R`, `Phase 2R`, the permissive `Phase 3R` packets, or the landed `Phase 4R-A` classic-cubing boundary lane.

Those earlier packets still own:

- source-value extraction
- retained-set routing
- ownership and acceptance boundaries
- the anti-over-narrowing `Model A` doctrine
- the already-landed permissive and boundary-sensitive widening decisions

This packet owns the next question instead:

- what first-party legacy `4D` implementation actually landed
- how the attribution, notice, and provenance boundary was preserved
- which retained MagicCube4D value is now live
- what remains explicitly out of scope for this lane
- what validation was completed
- what the next bounded implementation move is after this landing

## Authority order

For future work on the landed legacy `4D` boundary-sensitive lane, read in this order:

1. this packet for landed scope, attribution/provenance result, and validation result
2. [HYPERTWIST_LIVE_LANES_SOURCE_AND_PRESERVATION_AUDIT_2026-05-13.md](C:/HyperTwist/docs/HYPERTWIST_LIVE_LANES_SOURCE_AND_PRESERVATION_AUDIT_2026-05-13.md:1) for live-lane preserve posture
3. [HYPERTWIST_PHASE_1R_RETAINED_SET_CONTRACT_AND_HANDOFF_2026-05-13.md](C:/HyperTwist/docs/HYPERTWIST_PHASE_1R_RETAINED_SET_CONTRACT_AND_HANDOFF_2026-05-13.md:1) for retained-set routing
4. [HYPERTWIST_PHASE_0R_PACKET_0R_C_EVALUATION_2026-05-12.md](C:/HyperTwist/docs/HYPERTWIST_PHASE_0R_PACKET_0R_C_EVALUATION_2026-05-12.md:1) for source-value extraction and non-promotion rationale
5. [HYPERTWIST_MODEL_A_MAX_VALUE_EXTRACTION_MODUS_OPERANDI_2026-05-13.md](C:/HyperTwist/docs/HYPERTWIST_MODEL_A_MAX_VALUE_EXTRACTION_MODUS_OPERANDI_2026-05-13.md:1) for the canonical interpretation rule that keeps future `Model A` extraction rich rather than timid
6. [REPO_LICENSE_TRACKING.md](C:/HyperTwist/docs/REPO_LICENSE_TRACKING.md:1) for license, notice, attribution, and provenance obligations

## Packet licensing snapshot

Owner row widened by this packet:

- `cutelyaware/magiccube4d`: `custom permissive attribution-request license`

Checked local notice surfaces:

- [LICENSE.md](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/LICENSE.md:1)
- [src/com/donhatchsw/util/MyMath.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/donhatchsw/util/MyMath.java:1)

Boundary result:

- no upstream `magiccube4d` source files were modified in this packet
- no donor Swing shell, applet shell, Java event shell, or menu shell was landed
- the landed surface remains a first-party compiled contract and reference bundle that records an explicit attribution, notice, and provenance boundary
- the documented `MyMath.java` provenance caveat remains visible and is not treated as erased by first-party implementation

## Packet result

`4R-B` lands the legacy `4D` row as:

- `cutelyaware/magiccube4d` -> `implemented_live_boundary_sensitive`

Current portfolio effect:

- curated HyperTwist shallow-eval set: `71`
- currently verified live in checked Unreal surfaces: `16`
- live permissive lanes: `13`
- live boundary-sensitive adapter or attributed lanes: `2`
- live restrictive clean-room lanes: `1`
- active non-live implementation-board rows: `43`

## Donor source surfaces read

The source read for this widening remained bounded to the retained legacy `4D` subsystem seams:

- [src/com/superliminal/magiccube4d/History.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/superliminal/magiccube4d/History.java:1)
- [src/com/superliminal/magiccube4d/Macro.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/superliminal/magiccube4d/Macro.java:1)
- [src/com/superliminal/magiccube4d/PolytopePuzzleDescription.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/superliminal/magiccube4d/PolytopePuzzleDescription.java:1)
- [src/com/superliminal/magiccube4d/RotationHandler.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/superliminal/magiccube4d/RotationHandler.java:1)
- [src/com/superliminal/magiccube4d/MC4DView.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/superliminal/magiccube4d/MC4DView.java:1)
- [LICENSE.md](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/LICENSE.md:1)
- [src/com/donhatchsw/util/MyMath.java](C:/Workspaces/HyperTwist/mirrors/permissive/cutelyaware/magiccube4d/src/com/donhatchsw/util/MyMath.java:1)

## First-party landing surfaces

The landed first-party Unreal surfaces are:

- [HyperTwistTrainingLegacy4DLibrary.h](C:/HyperTwist/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingLegacy4DLibrary.h:1)
- [HyperTwistTrainingLegacy4DLibrary.cpp](C:/HyperTwist/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingLegacy4DLibrary.cpp:1)
- [HyperTwistTrainingRuntimeLibrary.h](C:/HyperTwist/UnrealHyperTwist/Source/UnrealHyperTwist/Public/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.h:1)
- [HyperTwistTrainingRuntimeLibrary.cpp](C:/HyperTwist/UnrealHyperTwist/Source/UnrealHyperTwist/Private/HyperTwistTraining/HyperTwistTrainingRuntimeLibrary.cpp:1)
- [hypertwist-reference-incorporation-targets.json](C:/HyperTwist/UnrealHyperTwist/Content/HyperTwistTraining/MaterializedCatalog/hypertwist-reference-incorporation-targets.json:1)
- [hypertwist-catalog-materialization-summary.json](C:/HyperTwist/UnrealHyperTwist/Content/HyperTwistTraining/MaterializedCatalog/hypertwist-catalog-materialization-summary.json:1)
- [cutelyaware-magiccube4d-reference-pages.jsonl](C:/HyperTwist/UnrealHyperTwist/Content/HyperTwistTraining/MaterializedCatalog/raw-extracts/cutelyaware-magiccube4d-reference-pages.jsonl:1)

## Landed implementation scope

What landed:

- a first-party compiled legacy `4D` package ledger that records the bounded roles for `History`, `Macro`, `PolytopePuzzleDescription`, `RotationHandler`, `MC4DView`, and the selective `MyMath` provenance reference
- a first-party history contract for move logs, marks, macro brackets, undo-redo traversal, truncate behavior, and save-restore semantics
- a first-party macro contract for reference-grip remapping, 4D transform application, determinant-aware reversal handling, and macro playback or serialization
- a first-party puzzle-description and topology contract for `Schlafli`-product parsing, generic polytope slicing, grip-sticker-face relationships, face-cut offsets, and generic higher-dimensional puzzle-description adapters
- a first-party interaction contract for 4D rotation grammar, snap behavior, sticker picking, highlight state, slice masks, callbacks, and queued animation semantics
- a first-party attribution and provenance boundary that records the required upstream link, notice retention, visible attribution, and the `MyMath.java` provenance caveat
- first-party runtime-library accessors and TSV checklist export for the new legacy `4D` bundle
- bundled first-party reference targets and raw source-reference capture for history, macros, topology, interaction, view-controller composition, and the attribution/provenance boundary

What that means in practice:

- `cutelyaware/magiccube4d` now owns the landed boundary-sensitive attributed legacy `4D` interaction, history, macro, topology-reference, and provenance-boundary preserve lane in HyperTwist
- the landed surface is a first-party Unreal contract and runtime API, not a vague future donor note
- the practical path remains first-party implementation with explicit attribution and provenance handling, not silent donor-shell adoption
- the `Hyperspeedcube` runtime anchor, `roice3/MagicTile` topology donor, and restrictive clean-room lanes remain distinct and are not collapsed into this packet

## Preserved landed value

The donor value that was actually promoted is:

- explicit move-log, mark, macro-boundary, undo-redo, and persisted replay-history semantics
- explicit reference-grip macro capture, remapping, reversal, and playback semantics
- explicit generic puzzle-description, polytope slicing, and grip-sticker-face topology seams
- explicit 4D rotation grammar, snap behavior, sticker picking, highlighting, slice-mask, and queued-animation seams
- explicit view-controller composition and callback seams without carrying over the donor Swing shell
- explicit attribution, upstream-link, notice-retention, and `MyMath` provenance-boundary language so later widening does not silently erase the legal context

## Excluded or non-promotion boundary

Do not promote this packet into:

- a replacement for the `Hyperspeedcube` higher-dimensional runtime anchor
- a justification for donor Swing, applet, or Java product-shell adoption
- a claim that `MyMath.java` is a plain zero-friction utility transplant
- a broad donor-shell precedent for custom-license rows
- a shortcut around the already-set owner boundaries for `roice3/MagicTile`, `roice3/Magic120Cell`, or `roice3/MagicCube5D`

Rationale:

- this packet was retained and widened because MagicCube4D is the strongest legacy `4D` interaction, history, and macro donor in the set
- its highest value is bounded higher-dimensional interaction grammar, history, macro semantics, and generic topology-adapter value
- the right integration path is first-party implementation with explicit attribution and provenance discipline rather than silent donor-shell carryover

## Acceptance markers satisfied

The `0R-C` and `Phase 1R` retained-value markers for this lane are now satisfied in first-party Unreal surfaces:

- a first-party history contract exists for higher-dimensional move logs, marks, macro delimiters, undo-redo traversal, and save-restore semantics
- a first-party macro contract exists for reference-grip remapping, transform-aware reversal, playback, and serialization seams
- a first-party puzzle-description contract exists for generic polytope slicing and topology-adapter semantics beneath the `Hyperspeedcube` anchor
- a first-party interaction contract exists for rotation grammar, picking, highlight, slice-mask, callback, and queued-animation seams
- a first-party attribution boundary exists for visible attribution, upstream-link retention, notice preservation, and the `MyMath` provenance caveat

## Validation

Validation completed for this packet:

- `git diff --check` passed apart from CRLF conversion warnings
- JSON validation passed for the updated materialized-catalog files and workspace manifest
- Unreal build succeeded with:
  - `C:\Program Files\Epic Games\UE_5.7\Engine\Build\BatchFiles\Build.bat UnrealHyperTwistEditor Win64 Development C:\HyperTwist\UnrealHyperTwist\UnrealHyperTwist.uproject -WaitMutex -NoHotReloadFromIDE`

Build result:

- `Succeeded` on `2026-05-13`

## Next move

The next bounded move is `Phase 4R-C`:

- widen `google/model-viewer/packages/shared-assets` as the retained fixture and QA-pack lane with explicit per-asset allowlisting and shipping-boundary discipline
- keep the optional `Phase 3R-G` `pissang/claygl` and `pissang/clay-viewer` comparison lane deferred unless the landed primary browser spatial stack exposes a real gap
