matrix-react-sdk
Version:
SDK for matrix.org using React
25 lines (21 loc) • 775 B
text/typescript
/*
Copyright 2024 New Vector Ltd.
Copyright 2021 Šimon Brandner <simon.bra.ag@gmail.com>
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
import { clamp } from "lodash";
/**
* This method linearly interpolates between two points (start, end). This is
* most commonly used to find a point some fraction of the way along a line
* between two endpoints (e.g. to move an object gradually between those
* points).
* @param {number} start the starting point
* @param {number} end the ending point
* @param {number} amt the interpolant
* @returns
*/
export function lerp(start: number, end: number, amt: number): number {
amt = clamp(amt, 0, 1);
return (1 - amt) * start + amt * end;
}