Xevion / Pac-Man / 16885120893

    fn sleep(&self, duration: Duration) {

        unsafe {

            emscripten_sleep(duration.as_millis() as u32);

        }

    }

    fn get_time(&self) -> f64 {

        unsafe { emscripten_get_now() }

    }

    fn init_console(&self) -> Result<(), PlatformError> {

        Ok(()) // No-op for Emscripten

    }

    fn get_canvas_size(&self) -> Option<(u32, u32)> {

        Some(unsafe { get_canvas_size() })

    }

    fn get_asset_bytes(&self, asset: Asset) -> Result<Cow<'static, [u8]>, AssetError> {

        let path = format!("assets/game/{}", asset.path());

        let mut rwops = RWops::from_file(&path, "rb").map_err(|_| AssetError::NotFound(asset.path().to_string()))?;

        let len = rwops.len().ok_or_else(|| AssetError::NotFound(asset.path().to_string()))?;

        let mut buf = vec![0u8; len];

        rwops

            .read_exact(&mut buf)

            .map_err(|e| AssetError::Io(std::io::Error::new(std::io::ErrorKind::Other, e)))?;

        Ok(Cow::Owned(buf))

    }

unsafe fn get_canvas_size() -> (u32, u32) {

    let mut width = 0.0;

    let mut height = 0.0;

    emscripten_get_element_css_size("canvas\0".as_ptr(), &mut width, &mut height);

    (width as u32, height as u32)

}