webAO/packets/handlers/handleEM.ts


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import { client } from "../../client";
import { addTrack } from "../../client/addTrack";
import { createArea } from "../../client/createArea";
import { fix_last_area } from "../../client/fixLastArea";
import { isAudio } from "../../client/isAudio";

/**
 * Handles incoming music information, containing multiple entries
 * per packet.
 * @param {Array} args packet arguments
 */
export const handleEM = (args: string[]) => {
  document.getElementById("client_loadingtext")!.innerHTML = "Loading Music";
  if (args[1] === "0") {
    client.resetMusicList();
    client.resetAreaList();
    client.musics_time = false;
  }

  for (let i = 2; i < args.length - 1; i++) {
    if (i % 2 === 0) {
      const trackname = args[i];
      const trackindex = Number(args[i - 1]);
      if (client.musics_time) {
        addTrack(trackname);
      } else if (isAudio(trackname)) {
        client.musics_time = true;
        fix_last_area();
        addTrack(trackname);
      } else {
        createArea(trackindex, trackname);
      }
    }
  }
  // get the next batch of tracks
  client.sender.sendServer(`AM#${Number(args[1]) / 10 + 1}#%`);
};