Cannot spawn more than one thread

[hatala91]

Description I am using phaser-on-nodejs for implementing an authoritative server instance of a multiplayer online game. There might be multiple games in parallel, which is why I need multiple instances of the server and I was hoping to solve this with multithreading.

How to reproduce Assuing I have a working phaser-on-nodejs game working with an entry script called game.js, I spawn the server side code using something like:

import { Worker } from "worker_threads";
const gameProcess = new Worker(`game.js`, {
  workerData: gameParameters,
});

With the first thread this works fine, however on spawning a second thread I get:

Error: Module did not self-register: '/Users/sebastianhatala/dev/realtime-multiplayer-pong-backend/node_modules/canvas/build/Release/canvas.node'.
Process exited with exit code 1

[yandeu]

Looks like the error has something to do with node-canvas. Have you already check the node-canvas repo?

Maybe this helps: https://github.com/Automattic/node-canvas/issues/1718

[hatala91]

Thanks for looking into this, turns out that the causing issue is indeed node-canvas but another issue: https://github.com/Automattic/node-canvas/issues/1394

Closing this, though of course a canvas independent implementation would be amazing - maybe with Phaser 4.

[yandeu]

👍🏻

---

Btw, I was experimenting with a Standalone Arcade Physics lib. Maybe it helps https://github.com/yandeu/arcade-physics_dev

[hatala91]

Yes! Appreciate this so much since there seems to be no great standalone Node.JS physics engine out there (P2 and Matter.js seem abandoned) others are really small and barely used 🤔

[yandeu]

No, matter.js is not abandoned. It's my favorite 2d physics engine.

[hatala91]

Okay, glad to hear that too! I had read that somewhere (cannot have been a credible source though) and the open issues/ PRs did not directly contradict it. But we are way off topic here now anyway 😉