96 lines
3.8 KiB
Markdown
96 lines
3.8 KiB
Markdown
# M03-RND-WMO-SCENE-RESOURCE-CACHE-001 — WMO cached-scene resource state
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<!-- OPENWC_CLAIM:M03-RND-WMO-SCENE-RESOURCE-CACHE-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-wmo-scene-resource-cache`
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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 cached-WMO `PackedScene`, negative-cache and asynchronous request state
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from the loader while preserving loader-owned file limits, I/O and scene-cache
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version validation.
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## Non-goals
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- Call `ResourceLoader`/`FileAccess`, construct `.tscn` paths or measure files.
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- Instantiate scenes or validate WMO builder cache metadata/version.
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- Own live WMO prototypes, placement/build jobs, instantiated Nodes or RIDs.
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- Change missing/oversize/request-error fallback behavior or debug output.
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- Claim asset-backed WMO fidelity, leak acceptance or traversal p95/p99.
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## Paths
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- Exclusive: `src/render/wmo/wmo_scene_resource_cache_state.gd`,
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`src/tools/verify_wmo_scene_resource_cache_state.gd`,
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`docs/modules/wmo-scene-resource-cache-state.md`, this claim
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- Shared/hotspots: `src/scenes/streaming/streaming_world_loader.gd`,
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`src/tools/verify_render_runtime_cache_shutdown.gd`,
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`docs/modules/wmo-render-resource-cache-state.md`,
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`docs/modules/world-renderer.md`, `docs/modules/README.md`, `RENDER.md`,
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`targets/03-renderer-facade.md`
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- Generated/ignored: `.godot`, native DLL, generated ADT/WMO resources, caches
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and proprietary renderer corpus
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## Contracts and data
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- State keys are loader-normalized relative WMO paths copied as `String`.
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- Cached values are loader-validated `PackedScene` references.
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- Pending values are `.tscn` paths for loader-owned threaded requests.
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- Missing state accepts absent file, oversize, request-start, load and validation failures.
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- Terminal pending removal precedes validated-scene or missing adoption.
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- Transient clear retains accepted scenes; full clear releases all state.
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- Cache metadata/version, file-size limit, profile and fallback rules are unchanged.
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## Dependencies
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- Requires: current master `e690756`; accepted WMO render Resource cache state
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- Blocks: further WMO I/O/fallback and materialization decomposition
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- External state: none; verification uses synthetic PackedScenes and paths
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## Verification
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- Commands: dedicated lifecycle/request/missing/reset/diagnostics/source/timing
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verifier; WMO render-cache/queue/planner/registry/resolver/material/shutdown plus
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adjacent renderer/streaming/coordinate/documentation/coordination gates
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- Fixtures: synthetic PackedScene instances and normalized relative/cache paths
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- Fidelity evidence: exact current cached-scene/missing/request transitions preserved
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- Performance budget: 100 cycles over 256 scene/request keys under 1 second
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## Documentation deliverables
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- Inline public API docs
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- Module specification with inputs/outputs, ownership and source map
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- Data-flow, lifecycle/state and loader interaction sequence diagrams
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- World-renderer, module registry, render-cache and RENDER status updates
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## Simplicity and naming
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- Important names introduced: `WmoSceneResourceCacheState`
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- Simplest considered solution: one RefCounted around three Dictionaries
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- Rejected complexity/abstractions: generic cache hierarchy, callbacks, signals,
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mutexes, ResourceLoader wrapper, persistence layer or render/scene cache merger
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- Unavoidable complexity and justification: missing can be recorded without a
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pending request, and partial reset must retain validated PackedScenes
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- Measured optimization evidence: bounded synthetic store/request/reset loop
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## Status
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- State: claimed
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- Done: lifecycle and four negative-cache sources identified
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- Next: implement state holder, migrate loader adapters, verify and document
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- Blocked by:
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## Handoff
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- Commit:
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- Results:
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- Remaining risks:
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- Documentation updated:
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