all files / mapbox-gl-draw/src/lib/ is_click.js

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const euclideanDistance = require('./euclidean_distance');
 
const FINE_TOLERANCE = 4;
const GROSS_TOLERANCE = 12;
const INTERVAL = 500;
 
module.exports = function isClick(start, end, options = {}) {
  const fineTolerance = (options.fineTolerance != null) ? options.fineTolerance : FINE_TOLERANCE;
  const grossTolerance = (options.grossTolerance != null) ? options.grossTolerance : GROSS_TOLERANCE;
  const interval = (options.interval != null) ? options.interval : INTERVAL;
 
  start.point = start.point || end.point;
  start.time = start.time || end.time;
  const moveDistance = euclideanDistance(start.point, end.point);
 
  return moveDistance < fineTolerance ||
    (moveDistance < grossTolerance && (end.time - start.time) < interval);
};