clean: remove obsolete repair debug code + unused core utilities
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@@ -1,32 +1,22 @@
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type Listener<TPayload> = (payload: TPayload) => void;
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type ListenerMap<TEvents extends Record<string, unknown>> = {
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type ListenerMap<TEvents extends object> = {
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[TKey in keyof TEvents]?: Set<Listener<TEvents[TKey]>>;
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};
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function getListeners<
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TEvents extends Record<string, unknown>,
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TKey extends keyof TEvents,
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>(
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map: ListenerMap<TEvents>,
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key: TKey,
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): Set<Listener<TEvents[TKey]>> | undefined {
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return map[key] as Set<Listener<TEvents[TKey]>> | undefined;
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}
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export class EventEmitter<TEvents extends Record<string, unknown>> {
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export class EventEmitter<TEvents extends object> {
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private readonly listeners: ListenerMap<TEvents> = {};
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on<TKey extends keyof TEvents>(
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event: TKey,
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listener: Listener<TEvents[TKey]>,
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): () => void {
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const existing = getListeners(this.listeners, event);
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const existing = this.listeners[event];
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if (existing) {
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existing.add(listener);
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} else {
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this.listeners[event] = new Set([listener]) as ListenerMap<TEvents>[TKey];
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this.listeners[event] = new Set([listener]);
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}
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return () => {
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@@ -38,7 +28,7 @@ export class EventEmitter<TEvents extends Record<string, unknown>> {
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event: TKey,
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listener: Listener<TEvents[TKey]>,
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): void {
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const currentListeners = getListeners(this.listeners, event);
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const currentListeners = this.listeners[event];
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if (!currentListeners) {
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return;
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@@ -52,7 +42,7 @@ export class EventEmitter<TEvents extends Record<string, unknown>> {
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}
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emit<TKey extends keyof TEvents>(event: TKey, payload: TEvents[TKey]): void {
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const currentListeners = getListeners(this.listeners, event);
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const currentListeners = this.listeners[event];
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if (!currentListeners) {
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return;
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@@ -1,50 +0,0 @@
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type SizeSnapshot = {
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width: number;
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height: number;
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pixelRatio: number;
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};
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type SizeListener = (snapshot: SizeSnapshot) => void;
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export class Sizes {
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private snapshot: SizeSnapshot;
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private readonly listeners = new Set<SizeListener>();
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private readonly handleResize = (): void => {
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this.snapshot = Sizes.readWindow();
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this.emit();
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};
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constructor() {
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this.snapshot = Sizes.readWindow();
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window.addEventListener("resize", this.handleResize);
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}
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subscribe(listener: SizeListener): () => void {
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this.listeners.add(listener);
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return () => {
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this.listeners.delete(listener);
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};
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}
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getSnapshot(): SizeSnapshot {
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return this.snapshot;
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}
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destroy(): void {
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window.removeEventListener("resize", this.handleResize);
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this.listeners.clear();
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}
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private emit(): void {
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this.listeners.forEach((listener) => listener(this.snapshot));
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}
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private static readWindow(): SizeSnapshot {
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return {
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width: window.innerWidth,
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height: window.innerHeight,
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pixelRatio: Math.min(window.devicePixelRatio, 2),
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};
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}
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}
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@@ -1,42 +0,0 @@
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type TickListener = (delta: number, elapsed: number) => void;
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export class Time {
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private readonly listeners = new Set<TickListener>();
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private animationFrameId = 0;
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private lastTick = performance.now();
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private elapsed = 0;
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constructor() {
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this.tick = this.tick.bind(this);
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this.animationFrameId = window.requestAnimationFrame(this.tick);
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}
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subscribe(listener: TickListener): () => void {
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this.listeners.add(listener);
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return () => {
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this.listeners.delete(listener);
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};
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}
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getElapsed(): number {
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return this.elapsed;
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}
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destroy(): void {
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window.cancelAnimationFrame(this.animationFrameId);
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this.listeners.clear();
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}
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private tick(now: number): void {
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const delta = (now - this.lastTick) / 1000;
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this.lastTick = now;
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this.elapsed += delta;
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this.listeners.forEach((listener) => {
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listener(delta, this.elapsed);
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});
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this.animationFrameId = window.requestAnimationFrame(this.tick);
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}
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}
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