Implements plans/editor-placement-interaction-overhaul.md: an authoritative interaction-scope state machine plus the catalogued placement/interaction fixes, and split-view floor-plan performance. - Interaction-scope spine (lib/interaction/* + store/use-interaction-scope), driven from central useEditor setters; overlay scoping (zone labels, context badges, floating action menu) reads resolveOverlayPolicy. - Bug tracks A/B/D/E/F/G/H: handle/cutout raycast, footprint validity, auto-slab loop, ceiling hosting, B-key tool desync, 2D drop offset, per-frame jank. - Snapping modes (grid/lines/angles/off) + contextual HUD chips; modifier model (Shift=cycle, Alt=free place, Ctrl=grid step). - Item move now tracks the cursor 1:1 (was a laggy per-frame lerp); handle rig hides during a whole-node move; rotate gizmo advertises Shift=free rotation in the HUD and hides the move cross while rotating. - Floor-plan perf: pause live reactivity while in 3D-only view; per-node geometry cache so only changed nodes rebuild on a drag; hoist wall miters to a once-per-pass ctx.levelData (O(N^2) -> O(N) on wall/opening drags). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
31 lines
2.6 KiB
Markdown
31 lines
2.6 KiB
Markdown
# Architecture
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Canonical rules for code that touches `packages/core`, `packages/viewer`, `packages/editor`, `packages/mcp`, or `apps/editor`. Read on demand from `AGENTS.md` and from `.agents/skills/review-architecture/SKILL.md`.
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## Pages
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| Page | Covers |
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|---|---|
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| [layers](layers.md) | Three.js layer constants, ownership, and rendering separation |
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| [systems](systems.md) | Core and viewer systems architecture |
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| [renderers](renderers.md) | Node renderer pattern in `packages/viewer` |
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| [node-definitions](node-definitions.md) | Three-checkbox composition model for registry-driven kinds (`geometry` / `renderer` / `system`) |
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| [materials-and-themes](materials-and-themes.md) | Surface colour: surface roles, colour presets, the textures axis, and scene themes (appearance / ground / clay tints) |
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| [item-authoring](item-authoring.md) | Content-author contract for catalog item GLBs: `slot_` material naming, authored defaults + `pascal_material` extras, the `cutout` reserved mesh, UV world scale, and the validated Blender/export recipe |
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| [plugin-authoring](plugin-authoring.md) | Public contract for external plugins — `Plugin` shape, `setPluginDiscovery`, lifecycle, what's in and out of v1 |
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| [tools](tools.md) | Editor tools structure, 2D↔3D behavioral parity, manipulation constraints, and Shift bypass defaults |
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| [interaction-scope](interaction-scope.md) | The authoritative interaction state machine ("the spine"): `InteractionScope` union, the begin/update/end/endIf contract, the raycast hot-set, and the overlay scope matrix |
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| [viewer-isolation](viewer-isolation.md) | Keeping `@pascal-app/viewer` editor-agnostic |
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| [selection-managers](selection-managers.md) | Two-layer selection (viewer + editor), events, outliner |
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| [scene-registry](scene-registry.md) | Global node ID → Object3D map and `useRegistry` |
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| [spatial-queries](spatial-queries.md) | Placement validation (`canPlaceOnFloor`/`Wall`/`Ceiling`) for tools |
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| [node-schemas](node-schemas.md) | Zod schema pattern for node types, `createNode`, `updateNode` |
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| [events](events.md) | Typed event bus — emitting and listening to node and grid events |
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| [creating-rules](creating-rules.md) | How to add or update a page in this folder |
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## Reading order for an architecture review
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1. [layers](layers.md), [systems](systems.md), [renderers](renderers.md), [tools](tools.md), [viewer-isolation](viewer-isolation.md) — required every review.
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- When the diff touches placement / move / handle / reshape / box-select / paint or any overlay or picking behaviour, also read [interaction-scope](interaction-scope.md).
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2. The remaining pages on demand, based on what the diff touches.
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