120 lines
4.8 KiB
JavaScript
120 lines
4.8 KiB
JavaScript
var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name in all)
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__defProp(target, name, { get: all[name], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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var __accessCheck = (obj, member, msg) => {
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if (!member.has(obj))
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throw TypeError("Cannot " + msg);
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};
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var __privateGet = (obj, member, getter) => {
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__accessCheck(obj, member, "read from private field");
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return getter ? getter.call(obj) : member.get(obj);
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};
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var __privateAdd = (obj, member, value) => {
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if (member.has(obj))
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throw TypeError("Cannot add the same private member more than once");
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member instanceof WeakSet ? member.add(obj) : member.set(obj, value);
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};
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var __privateSet = (obj, member, value, setter) => {
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__accessCheck(obj, member, "write to private field");
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setter ? setter.call(obj, value) : member.set(obj, value);
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return value;
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};
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var __privateWrapper = (obj, member, setter, getter) => ({
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set _(value) {
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__privateSet(obj, member, value, setter);
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},
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get _() {
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return __privateGet(obj, member, getter);
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}
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});
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var range_animation_exports = {};
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__export(range_animation_exports, {
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RangeAnimation: () => RangeAnimation
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});
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module.exports = __toCommonJS(range_animation_exports);
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var _range, _startTime, _previousTime, _deltaTime, _frameCount, _updateTimestamp, _updateStartValue, _lastRangeIncrease, _id, _animate;
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class RangeAnimation {
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constructor(range, callback, fps) {
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__privateAdd(this, _range, void 0);
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__privateAdd(this, _startTime, void 0);
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__privateAdd(this, _previousTime, void 0);
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__privateAdd(this, _deltaTime, void 0);
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__privateAdd(this, _frameCount, void 0);
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__privateAdd(this, _updateTimestamp, void 0);
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__privateAdd(this, _updateStartValue, void 0);
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__privateAdd(this, _lastRangeIncrease, void 0);
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__privateAdd(this, _id, 0);
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__privateAdd(this, _animate, (now = performance.now()) => {
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__privateSet(this, _id, requestAnimationFrame(__privateGet(this, _animate)));
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__privateSet(this, _deltaTime, performance.now() - __privateGet(this, _previousTime));
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const fpsInterval = 1e3 / this.fps;
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if (__privateGet(this, _deltaTime) > fpsInterval) {
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__privateSet(this, _previousTime, now - __privateGet(this, _deltaTime) % fpsInterval);
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const fps = 1e3 / ((now - __privateGet(this, _startTime)) / ++__privateWrapper(this, _frameCount)._);
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const delta = (now - __privateGet(this, _updateTimestamp)) / 1e3 / this.duration;
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let value = __privateGet(this, _updateStartValue) + delta * this.playbackRate;
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const increase = value - __privateGet(this, _range).valueAsNumber;
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if (increase > 0) {
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__privateSet(this, _lastRangeIncrease, this.playbackRate / this.duration / fps);
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} else {
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__privateSet(this, _lastRangeIncrease, 0.995 * __privateGet(this, _lastRangeIncrease));
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value = __privateGet(this, _range).valueAsNumber + __privateGet(this, _lastRangeIncrease);
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}
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this.callback(value);
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}
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});
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__privateSet(this, _range, range);
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this.callback = callback;
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this.fps = fps;
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}
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start() {
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if (__privateGet(this, _id) !== 0)
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return;
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__privateSet(this, _previousTime, performance.now());
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__privateSet(this, _startTime, __privateGet(this, _previousTime));
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__privateSet(this, _frameCount, 0);
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__privateGet(this, _animate).call(this);
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}
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stop() {
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if (__privateGet(this, _id) === 0)
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return;
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cancelAnimationFrame(__privateGet(this, _id));
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__privateSet(this, _id, 0);
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}
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update({ start, duration, playbackRate }) {
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const increase = start - __privateGet(this, _range).valueAsNumber;
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const durationDelta = Math.abs(duration - this.duration);
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if (increase > 0 || increase < -0.03 || durationDelta >= 0.5) {
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this.callback(start);
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}
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__privateSet(this, _updateStartValue, start);
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__privateSet(this, _updateTimestamp, performance.now());
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this.duration = duration;
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this.playbackRate = playbackRate;
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}
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}
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_range = new WeakMap();
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_startTime = new WeakMap();
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_previousTime = new WeakMap();
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_deltaTime = new WeakMap();
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_frameCount = new WeakMap();
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_updateTimestamp = new WeakMap();
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_updateStartValue = new WeakMap();
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_lastRangeIncrease = new WeakMap();
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_id = new WeakMap();
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_animate = new WeakMap();
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