use bevy::prelude::*;
use bevy_plot::*;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugin(PlotPlugin)
        .add_startup_system(setup)
        .run();
}

// If no fonts are loaded and put into the TickLabelFont resource,
// the canvas will not include the tick labels. See the "markers" example
// for an instance of loading a font.
fn setup(mut commands: Commands, mut plots: ResMut<Assets<Plot>>) {
    commands.spawn_bundle(OrthographicCameraBundle::new_2d());

    let mut plot = Plot::default();

    let xs = (0..30).map(|i| i as f32 / 30.0).collect::<Vec<f32>>();

    let ys = xs
        .iter()
        .map(|x| Vec2::new(*x, 0.5 * x))
        .collect::<Vec<Vec2>>();

    plot.plot(ys);

    let plot_handle = plots.add(plot.clone());
    commands.spawn().insert(plot_handle);
}