106 lines
4.4 KiB
Markdown
106 lines
4.4 KiB
Markdown
# M03-RND-M2-BUILD-BATCH-PLANNER-001 — M2 build batch planner
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<!-- OPENWC_CLAIM:M03-RND-M2-BUILD-BATCH-PLANNER-001:sindo-main-codex:2026-07-20 -->
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## Ownership
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- Target: M03
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- Program: RND
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- Owner/Agent ID: sindo-main-codex
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- Branch: `work/sindo-main-codex/m03-m2-build-batch-planner`
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- Lease expires UTC: 2026-07-20
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- Integrator: M03 milestone integrator
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## Outcome
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Extract pure static/animated M2 build batch sizing and cursor progression from
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the loader build-job loop into a scene-free planner.
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## Non-goals
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- Move build-job/queue ownership, tile eligibility or cancellation.
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- Move animation/mesh requests, cache lookup, queue rotation or retry behavior.
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- Create Nodes, MultiMesh, Mesh, materials or RIDs.
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- Change render-budget permit consumption or per-profile batch limits.
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- Introduce spatial-cell batching or claim asset-backed performance parity.
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## Paths
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- Exclusive: `src/render/m2/m2_build_batch_planner.gd`,
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`src/tools/verify_m2_build_batch_planner.gd`,
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`docs/modules/m2-build-batch-planner.md`, this claim
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- Shared/hotspots: `src/scenes/streaming/streaming_world_loader.gd`,
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`docs/modules/m2-placement-grouper.md`, `docs/modules/world-renderer.md`,
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`docs/modules/README.md`, `RENDER.md`, `targets/03-renderer-facade.md`
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- Generated/ignored: `.godot`, native DLL, generated ADT resources, caches and
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proprietary renderer corpus
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## Contracts and data
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- Input: transform count, current offset, animated/static path selector and raw
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animated/static batch limits
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- Output: fresh plan Dictionary with effective batch size, batch count, next
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offset and group-complete flag
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- Selected batch limit clamps to at least one
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- Batch count clamps to remaining non-negative transforms
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- Group completes when no batch can be consumed or offset plus batch reaches end
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- Queue/cache/schema/coordinate/profile values: unchanged
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## Dependencies
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- Requires: current master `9d74d99`; grouped transform arrays from
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`M2PlacementGrouper`
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- Blocks: broader M2 build-job state extraction
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- External state: none; tests use scalar synthetic counts/limits
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## Verification
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- Commands: dedicated static/animated/limit/remaining/complete/empty/offset and
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bounded timing verifier; loader source boundary; grouper/transform/registry plus
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facade/internal-access/manifest/shutdown/documentation/coordination gates
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- Fidelity evidence: exact batch/count/cursor formulas moved unchanged
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- Performance budget: constant-time scalar/container calculation; no Node,
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Resource, RID, task, queue, mutex, cache or file access
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## Documentation deliverables
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- Inline planner API documentation
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- New module spec with inputs/outputs, data-flow, lifecycle, ownership, failure,
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performance, fidelity limitations and source map
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- Grouper, renderer/module registry and `RENDER.md` updates
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## Simplicity and naming
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- Important name: `M2BuildBatchPlanner`
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- Simplest solution: one stateless `plan_batch` query with a small detached result
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- Rejected complexity: job classes, state machine framework, callbacks, signals,
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Resources, strategies or scheduler integration
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- Unavoidable complexity: loader retains raw build-job Dictionaries
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- Measured optimization evidence: bounded synthetic planning loop
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## Status
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- State: handoff
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- Done: planner, loader adapter, regressions and documentation verified
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- Next: M03 integrator acceptance and merge to master
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- Blocked by:
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<!-- OPENWC_HANDOFF:READY:M03-RND-M2-BUILD-BATCH-PLANNER-001:be6db7f -->
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## Handoff
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- Commit: `be6db7f` (`refactor(M03): extract M2 build batch planner`)
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- Results: dedicated planner PASS (`cases=8`, `iterations=20000`,
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`elapsed_ms=13.464`); grouper, transform resolver, M2 registry/dedupe, terrain
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cache/LOD/queue, facade, internal-access, manifest, shutdown, scheduler,
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streaming planner/focus, terrain-query and coordinate-boundary suites PASS;
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editor import parsed with only expected missing private corpus diagnostics;
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documentation PASS (`module_specs=18`, `required_files=7`); coordination PASS
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with 23 pre-existing expired M00/M01 warnings; checkpoint dry-run planned `7/7`.
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- Remaining risks: no private asset-backed p95/p99 or visual comparison; result
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and loader job remain Dictionaries; resource/queue transitions and spatial-cell
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batching are still loader-owned; negative offset behavior remains permissive.
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- Documentation updated: inline public API; new
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`docs/modules/m2-build-batch-planner.md`; placement grouper module spec,
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renderer module registry, `docs/modules/world-renderer.md` and `RENDER.md`.
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