@difizen/mana-common/lib/stopwatch.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.StopWatch = void 0;
var _platform = require("./platform");
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, _toPropertyKey(descriptor.key), descriptor); } }
function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : String(i); }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); } /*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
var hasPerformanceNow = _platform.globals.performance && typeof _platform.globals.performance.now === 'function';
var StopWatch = exports.StopWatch = /*#__PURE__*/function () {
  function StopWatch(highResolution) {
    _classCallCheck(this, StopWatch);
    _defineProperty(this, "_highResolution", void 0);
    _defineProperty(this, "_startTime", void 0);
    _defineProperty(this, "_stopTime", void 0);
    this._highResolution = hasPerformanceNow && highResolution;
    this._startTime = this._now();
    this._stopTime = -1;
  }
  _createClass(StopWatch, [{
    key: "stop",
    value: function stop() {
      this._stopTime = this._now();
    }
  }, {
    key: "elapsed",
    value: function elapsed() {
      if (this._stopTime !== -1) {
        return this._stopTime - this._startTime;
      }
      return this._now() - this._startTime;
    }
  }, {
    key: "_now",
    value: function _now() {
      return this._highResolution ? _platform.globals.performance.now() : Date.now();
    }
  }], [{
    key: "create",
    value: function create() {
      var highResolution = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
      return new StopWatch(highResolution);
    }
  }]);
  return StopWatch;
}();