lib.rs

#[macro_use]
extern crate cfg_if;
extern crate wasm_bindgen;
extern crate web_sys;

mod ball;
mod ball_collection;
mod render;
#[allow(non_snake_case)]
mod vector2D;

// use wasm_bindgen::prelude::*;

cfg_if! {
    // When the `console_error_panic_hook` feature is enabled, we can call the
    // `set_panic_hook` function to get better error messages if we ever panic.
    if #[cfg(feature = "console_error_panic_hook")] {
        extern crate console_error_panic_hook;
        use console_error_panic_hook::set_once as set_panic_hook;
    } else {
        #[allow(dead_code)]
        #[inline]
        fn set_panic_hook() {}
    }
}

cfg_if! {
    // When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
    // allocator.
    if #[cfg(feature = "wee_alloc")] {
        extern crate wee_alloc;
        #[global_allocator]
        static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
    }
}

// Called by our JS entry point to run the example. - ⚠️ DISABLED (not called anymore)
// #[wasm_bindgen]
// pub fn run() -> Result<(), JsValue> {
//     set_panic_hook();

//     let window = web_sys::window().expect("should have a Window");
//     let document = window.document().expect("should have a Document");

//     let p: web_sys::Node = document.create_element("p")?.into();
//     p.set_text_content(Some("Hello from Rust, WebAssembly, and Webpack!"));

//     let body = document.body().expect("should have a body");
//     let body: &web_sys::Node = body.as_ref();
//     body.append_child(&p)?;

//     Ok(())
// }