Unable to deploy example with box2d-wasm

1

Hello,

Can it be an issue of Render?

2

It seams like it is an issue for Render, because I deployed my example on Glitch and it works.

3

Should I create an issue on GitHub for Render?

4

It is a solution for Render:

init-box2d.js

import Box2DLib from "box2d-wasm";

export let box2d = null;

export function initBox2D() {
    return new Promise(resolve => {
        Box2DLib({
            locateFile: (url, scriptDirectory) => "file:///opt/render/project/src/node_modules/box2d-wasm/dist/umd/Box2D.simd.wasm"
        }).then((re) => {
            box2d = re;
            resolve();
        });
    });
}

app.js

import { box2d, initBox2D } from "./init-box2d.js";

async function init() {
    await initBox2D();

    const {
        b2Vec2,
        b2World
    } = box2d;

    const gravity = new b2Vec2(0, -3);
    const world = new b2World(gravity);
    const g = world.GetGravity();
    console.log("gravity = ", g);
}

init();
5

Small update for localhost:

import Box2DLib from "box2d-wasm";

export let box2d = null;

export function initBox2D(localhost = true) {
    return new Promise(resolve => {
        Box2DLib({
            locateFile: (url, scriptDirectory) => {
                if (url.endsWith(".wasm") && !localhost) {
                    return "file:///opt/render/project/src/node_modules/box2d-wasm/dist/umd/Box2D.simd.wasm";
                }
                return scriptDirectory + url;
            }
        }).then((re) => {
            box2d = re;
            resolve();
        });
    });
}
6

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