use sketchlib::nannou;
use sketchlib::palettes::TRANS_FLAG;
use sketchlib::prelude::*;

fn main() {
    nannou::app(model)
        .size(1260, 1260)
        .update(update)
        .simple_window(view)
        .run();
}

struct Model {}

fn model(_app: &App) -> Model {
    Model {}
}

fn update(app: &App, model: &mut Model, _update: Update) {
    // im pickle rick
}

const TAU: f64 = 6.283185307179586;

fn view(app: &App, _model: &Model, frame: Frame) {
    let window_rect = app.window_rect();

    let t = app.duration.since_start.as_secs_f64();

    let draw = app.draw().scale(1.0);
    draw.background().color(BLACK);

    let bottom = window_rect.bottom(); // 🥺
    let height = window_rect.h();

    for i in 0..25 {
        let y = bottom / 2.0 + i as f32 * height / 50.0;

        let mut rotation: f32 = (t * TAU / 2.0) as f32 * ((i + 1) as f32) / 25.0;

        draw.quad()
            .rotate(rotation)
            .color(TRANS_FLAG[i % TRANS_FLAG.len()])
            .width(height / 25.0)
            .height(height / 25.0)
            .x_y(0.0, y);
    }

    draw.to_frame(app, &frame).unwrap();
    dump_frame(app, &frame).unwrap();
}