maplibre-gl/src/ui/handler/handler_util.ts

BSD licensed community fork of mapbox-gl, a WebGL interactive maps library

import type Point from '@mapbox/point-geometry';

export function indexTouches(touches: Array<Touch>, points: Array<Point>) {
    if (touches.length !== points.length) throw new Error(`The number of touches and points are not equal - touches ${touches.length}, points ${points.length}`);
    const obj = {};
    for (let i = 0; i < touches.length; i++) {
        obj[touches[i].identifier] = points[i];
    }
    return obj;
}