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* @packageDocumentation
*
* Central state brain for the beatmap editor. React is a dumb view layer;
* this packlet owns all editor-relevant state, model data, and interaction logic.
*/
import { createNanoEvents } from "nanoevents";
import type { Emitter } from "nanoevents";
import { EntityManager } from "../entity-manager";
import type { TimingEngine } from "../timing-engine";
import { Point } from "../geometry";
import {
type EditorControllerOptions,
type LevelInfo,
type EditorOutboxEvents,
type UserAction,
} from "./types";
import { EditorContext } from "./editor-context";
import { SnapSlice } from "./slices/snap-slice";
import { ZoomSlice } from "./slices/zoom-slice";
import { ProjectSlice } from "./slices/project-slice";
import { ChartSlice } from "./slices/chart-slice";
import { LevelSlice } from "./slices/level-slice";
import { ViewportSlice } from "./slices/viewport-slice";
import { CursorSlice } from "./slices/cursor-slice";
import { SelectionSlice } from "./slices/selection-slice";
import { HistorySlice } from "./slices/history-slice";
import { BoxSelectionSlice } from "./slices/box-selection-slice";
import { ToolSlice } from "./slices/tool-slice";
import { TimingSlice } from "./slices/timing-slice";
import { ColumnsSlice } from "./slices/columns-slice";
import { TimingColumnsSlice } from "./slices/timing-columns-slice";
import { LevelColumnsSlice } from "./slices/level-columns-slice";
import { RenderSlice } from "./slices/render-slice";
import { PointerInteractionSlice } from "./slices/pointer-interaction-slice";
import { ViewCommandSlice } from "./slices/view-command-slice";
import { EditorCommandSlice } from "./slices/editor-command-slice";
export class EditorController {
outbox: Emitter<EditorOutboxEvents> = createNanoEvents<EditorOutboxEvents>();
ctx = new EditorContext();
get $snap() {
return this.ctx.get(SnapSlice).$snap;
}
get $zoom() {
return this.ctx.get(ZoomSlice).$zoom;
}
get $selectedChartId() {
return this.ctx.get(ChartSlice).$selectedChartId;
}
get $hiddenLevelIds() {
return this.ctx.get(LevelSlice).$hiddenLevelIds;
}
get $cursorPulse() {
return this.ctx.get(CursorSlice).$cursorPulse;
}
get $activeTool() {
return this.ctx.get(ToolSlice).$activeTool;
}
get $visibleRenderObjects() {
return this.ctx.get(RenderSlice).$visibleRenderObjects;
}
private get viewport(): ViewportSlice {
return this.ctx.get(ViewportSlice);
}
private get cursor(): CursorSlice {
return this.ctx.get(CursorSlice);
}
private get history(): HistorySlice {
return this.ctx.get(HistorySlice);
}
private get timing(): TimingSlice {
return this.ctx.get(TimingSlice);
}
private get columnsSlice(): ColumnsSlice {
return this.ctx.get(ColumnsSlice);
}
get $lastPlacedEntityInfo() {
return this.ctx.get(PointerInteractionSlice).$lastPlacedEntityInfo;
}
private get render(): RenderSlice {
return this.ctx.get(RenderSlice);
}
private get pointer(): PointerInteractionSlice {
return this.ctx.get(PointerInteractionSlice);
}
private get entityManager(): EntityManager {
return this.ctx.get(ProjectSlice).entityManager;
}
constructor(options: EditorControllerOptions) {
this.ctx.register(ProjectSlice, (ctx) => new ProjectSlice(ctx, options.project));
this.ctx.register(ChartSlice);
this.ctx.register(LevelSlice);
this.ctx.register(ViewportSlice);
this.ctx.register(CursorSlice);
this.ctx.register(SelectionSlice);
this.ctx.register(BoxSelectionSlice);
this.ctx.register(SnapSlice);
this.ctx.register(ZoomSlice);
this.ctx.register(HistorySlice);
this.ctx.register(ToolSlice);
this.ctx.register(TimingSlice);
this.ctx.register(ColumnsSlice);
this.ctx.register(TimingColumnsSlice);
this.ctx.register(LevelColumnsSlice);
this.ctx.register(RenderSlice);
this.ctx.register(PointerInteractionSlice);
this.ctx.register(ViewCommandSlice);
this.ctx.register(EditorCommandSlice);
this.ctx.get(ViewportSlice).onViewportChanged(() => {
this.pointer.recomputeCursorPulse();
this.render.refresh();
});
this.ctx.get(ViewportSlice).onScrollRequest((point) => {
this.outbox.emit("setScroll", point);
});
this.ctx.get(ToolSlice).onToolChanged(() => {
this.render.refresh();
});
this.ctx.get(SnapSlice).onSnapChanged(() => {
const currentPulse = this.cursor.$cursorPulse.get();
const snapped = this.snapToGrid(currentPulse);
this.cursor.$cursorPulse.set(snapped);
});
this.ctx.get(ColumnsSlice).$columns.subscribe(() => {
this.render.refresh();
});
this.ctx.get(ColumnsSlice).refreshColumns();
}
getLevelsForChart(chartId: string): LevelInfo[] {
return this.ctx.get(LevelSlice).getLevelsForChart(chartId);
}
addLevel(chartId: string, name: string, mode: string): string {
return this.ctx.get(LevelSlice).addLevel(chartId, name, mode);
}
removeLevel(levelId: string): void {
this.ctx.get(LevelSlice).removeLevel(levelId);
}
toggleLevelVisibility(levelId: string): void {
this.ctx.get(LevelSlice).toggleLevelVisibility(levelId);
}
getContentHeight(): number {
return this.viewport.getContentHeight();
}
setScroll(point: Point): void {
this.viewport.setScroll(point);
}
setViewportSize(width: number, height: number): void {
this.viewport.setViewportSize(width, height);
}
setSnap(snap: string): void {
this.ctx.get(SnapSlice).setSnap(snap);
}
handlePointerDown(point: Point, shiftKey: boolean = false): void {
this.pointer.handlePointerDown(point, shiftKey);
}
handlePointerMove(viewportX: number, viewportY: number): void {
this.pointer.handlePointerMove(viewportX, viewportY);
}
handlePointerUp(): void {
this.pointer.handlePointerUp();
}
setTool(tool: "select" | "pencil" | "erase" | "pan"): void {
this.ctx.get(ToolSlice).setTool(tool);
}
setZoom(zoom: number): void {
this.ctx.get(ViewCommandSlice).setZoom(zoom);
}
zoomIn(): void {
this.ctx.get(ViewCommandSlice).zoomIn();
}
zoomOut(): void {
this.ctx.get(ViewCommandSlice).zoomOut();
}
applyAction(action: UserAction): void {
this.history.applyAction(action);
}
deleteSelection(): void {
this.ctx.get(EditorCommandSlice).deleteSelection();
}
undo(): void {
this.history.undo();
}
redo(): void {
this.history.redo();
}
navigateSnap(direction: "up" | "down"): void {
this.ctx.get(ViewCommandSlice).navigateSnap(direction);
}
onConnected(): void {
const contentHeight = this.viewport.getContentHeight();
const viewportHeight = this.viewport.$viewportSize.get().height;
if (contentHeight > viewportHeight) {
this.outbox.emit("setScroll", {
x: this.viewport.$scroll.get().x,
y: contentHeight - viewportHeight,
});
}
}
getEntityManager(): EntityManager {
return this.entityManager;
}
snapToGrid(pulse: number): number {
return this.getTimingEngine().snapPulse(pulse, this.$snap.get());
}
getTimingEngine(): TimingEngine {
return this.timing.getTimingEngine();
}
getTimelineWidth(): number {
return this.columnsSlice.$timelineWidth.get();
}
}
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