rootandClaude Fable 5.1
e7d82bd1a9
A state machine is an asset whose graph holds one `State` node per state (no ports, name as title), edited in a new "State machine" tab that reuses the graph canvas: right-click places "State n", snap toggle shared with the Behavior tab via SnapToggle. `statemachine` is a value kind like texture (port, literal node, variable, struct field, tagged list item). Behaviors use it through `State branch` (one exec output per state) and `Set state` (one exec input per state; the interpreter now hands `run` the entry port). States live per behavior instance in NodeContext.states, with no initial state. Ports derive from the inline picker or a wired `State machine` literal; BehaviorLookup became GraphLookup with behavior(id) and machine(id). The Graph tab is labelled "Behavior" (key unchanged). Unit tests (state-machine, kinds, catalog, ports), e2e step 26 and README added. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
70 lines
2.6 KiB
TypeScript
70 lines
2.6 KiB
TypeScript
import type { Asset, BehaviorAsset } from '../../core/model/Asset';
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import { findAsset, findAssetOf } from '../../core/model/Project';
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import { AssetTabEditor } from '../AssetTabEditor';
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import type { EditorState } from '../state';
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import { Breadcrumb } from './Breadcrumb';
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import { GraphCanvas } from './GraphCanvas';
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import { SnapToggle } from './SnapToggle';
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import { backTo, descend, follow, type Trail } from './trail';
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/** Room kept for the "N nodes · M links" readout, wide enough for a three-digit graph. */
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const INFO_WIDTH = 150;
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export class GraphEditor extends AssetTabEditor<BehaviorAsset, GraphCanvas> {
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private readonly snap = new SnapToggle(() => this.canvas);
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readonly breadcrumb = new Breadcrumb();
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private trail: Trail = [];
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constructor(state: EditorState) {
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super(state, { noun: 'Behavior', infoWidth: INFO_WIDTH });
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this.breadcrumb.onPick = (index) => this.open(this.trail[index]!, backTo(this.trail, index));
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this.mount(new GraphCanvas(state), this.snap.widgets, this.breadcrumb);
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this.canvas.onOpenBehavior = (id) => this.open(id, descend(this.trail, this.currentAssetId, id));
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// Play swaps in the runtime copy of the project, and back.
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state.on('mode', () => this.refresh());
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}
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/**
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* The bar goes up before the graph switches: switching fits the view to the canvas, and a bar
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* appearing afterwards would cut the bottom of the fitted graph off.
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*/
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private open(assetId: string, trail: Trail): void {
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this.trail = trail;
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this.showTrail();
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this.state.select({ kind: 'asset', assetId });
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this.refresh();
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}
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protected override refresh(): void {
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super.refresh();
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const project = this.state.project;
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this.trail = follow(this.trail, this.currentAssetId, (id) =>
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Boolean(findAssetOf(project, id, 'behavior')),
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);
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this.showTrail();
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}
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private showTrail(): void {
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const names = this.trail.map((id) => findAsset(this.state.project, id)?.name ?? '');
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if (this.breadcrumb.show(names)) this.relayout();
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}
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protected override selectedId(): string {
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return this.state.selectedBehaviorId ?? '';
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}
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protected override isMine(asset: Asset): asset is BehaviorAsset {
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return asset.type === 'behavior';
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}
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protected override infoText(asset: BehaviorAsset): string {
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const nodes = asset.graph.nodes.length;
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const links = asset.graph.edges.length;
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return `${nodes} ${nodes === 1 ? 'node' : 'nodes'} · ${links} ${links === 1 ? 'link' : 'links'}`;
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}
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protected override syncExtras(asset: BehaviorAsset | null): void {
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this.snap.setEnabled(Boolean(asset));
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}
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}
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