@antv/f6-plugin/es/time-bar/utils/player.js

F6 plugin

export function createPlayer(fn, time) {
  if (time === void 0) {
    time = 20;
  }

  var isStop = true;
  var timer = null;
  var maxTime = 800;
  var minTime = 300;
  var maxLevel = 10;
  var minLevel = 1;

  var loop = function loop() {
    if (isStop) {
      clearTimeout(timer);
      return;
    }

    fn === null || fn === void 0 ? void 0 : fn();
    timer = setTimeout(function () {
      loop();
    }, time);
  };

  return {
    play: function play() {
      isStop = false;
      loop();
    },
    stop: function stop() {
      isStop = true;
    },
    setSpeed: function setSpeed(speed) {
      if (speed > maxLevel) speed = maxLevel;
      if (speed < minLevel) speed = minLevel;
      time = maxTime - (maxTime - minTime) * speed / (maxLevel - minLevel);
    }
  };
}