29 lines
732 B
TypeScript
29 lines
732 B
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2023 The Matrix.org Foundation C.I.C.
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
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Please see LICENSE files in the repository root for full details.
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*/
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// Fake random strings to give a predictable snapshot for IDs
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// Simple Xorshift random number generator with predictable ID
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export class PredictableRandom {
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private state: number;
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constructor() {
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this.state = 314159265;
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}
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get(): number {
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this.state ^= this.state << 13;
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this.state ^= this.state >> 17;
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this.state ^= this.state << 5;
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return this.state / 1073741823;
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}
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reset(): void {
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this.state = 314159265;
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}
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}
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