silphius/app/net/client/remote.js

import {CLIENT_PREDICTION} from '@/constants.js';

import Client from './client.js';

export default class RemoteClient extends Client {
  constructor() {
    super();
    if (CLIENT_PREDICTION) {
      this.worker = undefined;
    }
    else {
      this.socket = undefined;
    }
  }
  async connect(host) {
    if (CLIENT_PREDICTION) {
      this.worker = new Worker(
        new URL('../client/prediction.js', import.meta.url),
        {type: 'module'},
      );
      this.worker.postMessage({host});
      this.worker.onmessage = (event) => {
        this.accept(event.data);
      };
    }
    else {
      const url = new URL(`wss://${host}/ws`)
      if ('production' === process.env.NODE_ENV) {
        url.protocol = 'ws:';
      }
      this.socket = new WebSocket(url.href);
      this.socket.binaryType = 'arraybuffer';
      this.socket.onmessage = (event) => {
        this.accept(event.data);
      };
      await new Promise((resolve) => {
        this.socket.onopen = resolve;
      });
    }
  }
  disconnect() {
    if (CLIENT_PREDICTION) {
      this.worker.terminate();
    }
    else {
      this.socket.close();
    }
  }
  transmit(packed) {
    if (CLIENT_PREDICTION) {
      this.worker.postMessage(packed);
    }
    else {
      this.socket.send(packed);
    }
  }
}