Excalibur crashes when using tilemaps and actors together

Steps to Reproduce

import { Engine, Loader, Actor } from 'excalibur';
import { TiledResource } from '@excaliburjs/excalibur-tiled';

const game = new Engine();
const loader = new Loader();
const levelResource = new TiledResource('assets/map/single-layer.json');
loader.addResource(levelResource);

game.start(loader).then(() => {
  const tileMap = levelResource.getTileMap();
  game.addTileMap(tileMap);

  const actor = new Actor();
  game.add(actor); // Game crashes on this line
});

Expected Result

The map should display, along with any defined actors.

Actual Result

The entire browser tab freezes and needs to be force closed.

Environment

• browsers and versions: Chromium 79.0.3945.130, Firefox 72.0.2
• operating system: Ubuntu 19.10
• Excalibur versions: 0.23.0

Notes

• UIActors are fine; the problem specifically seems to happen when combining the Tiled TileMap and an Actor.
• import * as ex from 'excalibur' instead of the above import style makes no difference.

Current Workaround

None.

[DaVince]

Found the method that caused the lockup: stub out method TileMapImpl.collides() and the browser doesn’t freeze anymore.

Will attempt a fix and send a PR tomorrow.

[DaVince]

https://github.com/excaliburjs/excalibur-tiled/issues/87 is a duplicate of this and can also be closed 😃