82 lines
1.8 KiB
JavaScript
82 lines
1.8 KiB
JavaScript
import { ExtensionType } from '../../../extensions/Extensions.mjs';
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import { Ticker } from '../../../ticker/Ticker.mjs';
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"use strict";
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let uid = 1;
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class SchedulerSystem {
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constructor() {
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this._tasks = [];
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}
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/** Initializes the scheduler system and starts the ticker. */
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init() {
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Ticker.system.add(this._update, this);
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}
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/**
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* Schedules a repeating task.
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* @param func - The function to execute.
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* @param duration - The interval duration in milliseconds.
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* @returns The unique identifier for the scheduled task.
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*/
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repeat(func, duration) {
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const id = uid++;
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this._tasks.push({
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func,
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duration,
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start: performance.now(),
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last: performance.now(),
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repeat: true,
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id
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});
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return id;
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}
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/**
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* Cancels a scheduled task.
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* @param id - The unique identifier of the task to cancel.
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*/
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cancel(id) {
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for (let i = 0; i < this._tasks.length; i++) {
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if (this._tasks[i].id === id) {
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this._tasks.splice(i, 1);
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return;
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}
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}
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}
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/**
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* Updates and executes the scheduled tasks.
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* @private
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*/
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_update() {
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const now = performance.now();
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for (let i = 0; i < this._tasks.length; i++) {
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const task = this._tasks[i];
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if (now - task.last >= task.duration) {
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const elapsed = now - task.start;
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task.func(elapsed);
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task.last = now;
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}
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}
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}
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/**
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* Destroys the scheduler system and removes all tasks.
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* @internal
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* @ignore
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*/
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destroy() {
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Ticker.system.remove(this._update, this);
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this._tasks.length = 0;
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}
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}
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/** @ignore */
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SchedulerSystem.extension = {
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type: [
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ExtensionType.WebGLSystem,
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ExtensionType.WebGPUSystem,
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ExtensionType.CanvasSystem
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],
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name: "scheduler",
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priority: 0
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};
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export { SchedulerSystem };
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//# sourceMappingURL=SchedulerSystem.mjs.map
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