Audio WASM support

[Bombfuse]

Alternatively, make Kira compatible with WASM emerald.

[Bombfuse]

Exact instructions for audio with Kira on WASM by @iliakonnov:

Build for wasm as usual:
cargo build --example audio --target wasm32-unknown-unknown

A bit of patching in your target directory with audio.wasm:

wasm-bindgen ./audio.wasm --out-dir ./audio --target web
sed -i "s/import \* as __wbg_star0 from 'env';//" audio/audio.js
sed -i "s/let wasm;/let wasm; export const set_wasm = (w) => wasm = w;/" audio/audio.js
sed -i "s/imports\['env'\] = __wbg_star0;/return imports.wbg\;/" audio/audio.js

Then it could be run using miniquad's html:

<canvas id="glcanvas" tabindex='1'></canvas>
<!-- Minified and statically hosted version of https://github.com/not-fl3/macroquad/blob/master/js/mq_js_bundle.js -->
<script src="https://not-fl3.github.io/miniquad-samples/mq_js_bundle.js"></script>
<script type="module">
   import init, { set_wasm } from "./audio/audio.js";
    
    async function run() {
        let wbg = await init();

        miniquad_add_plugin({
            register_plugin: (a) => (a.wbg = wbg),
            on_init: () => set_wasm(wasm_exports),
            version: "0.0.1",
            name: "wbg",
        });

        load("./audio/audio_bg.wasm");
    }

    run();
</script>

[Bombfuse]

Audio now works in Emerald on WASM, you just need to follow the guide here, and replace "emerald.js" with the latest "gl.js" from miniquad. I'm going to keep this issue open until building for WASM with audio is as simple as calling a single command.

This might lead to an emerald cli that makes building things simpler.

https://github.com/smokku/gwg-bindgen