use notan::draw::*;
use notan::prelude::*;
fn create_text_loader() -> AssetLoader {
AssetLoader::new().use_parser(parse_text).extension("txt")
}
fn parse_text(_id: &str, data: Vec<u8>) -> Result<String, String> {
String::from_utf8(data).map_err(|e| e.to_string())
}
#[derive(AppState)]
struct State {
font: Font,
text: Asset<String>,
}
impl State {
fn new(assets: &mut Assets, gfx: &mut Graphics) -> Self {
let text = assets.load_asset(&asset_path("lorem.txt")).unwrap();
let font = gfx
.create_font(include_bytes!("assets/Ubuntu-B.ttf"))
.unwrap();
Self { font, text }
}
}
#[notan_main]
fn main() -> Result<(), String> {
notan::init_with(State::new)
.add_loader(create_text_loader())
.add_config(DrawConfig)
.draw(draw)
.build()
}
fn draw(gfx: &mut Graphics, state: &mut State) {
let mut draw = gfx.create_draw();
draw.clear(Color::BLACK);
if state.text.is_loaded() {
draw.text(&state.font, &state.text.lock().unwrap())
.max_width(750.0)
.position(10.0, 10.0)
.size(25.0);
} else {
draw.text(&state.font, "Loading...")
.position(10.0, 10.0)
.size(25.0);
};
gfx.render(&draw);
}
fn asset_path(path: &str) -> String {
let base = if cfg!(target_arch = "wasm32") {
"./assets"
} else {
"./examples/assets"
};
format!("{base}/{path}")
}