59 lines
1.5 KiB
Rust
59 lines
1.5 KiB
Rust
|
use nannou::prelude::*;
|
||
|
use utils::*;
|
||
|
|
||
|
fn main() {
|
||
|
nannou::app(model).update(update).simple_window(view).run();
|
||
|
}
|
||
|
|
||
|
struct Model {}
|
||
|
|
||
|
fn model(_app: &App) -> Model {
|
||
|
Model {}
|
||
|
}
|
||
|
|
||
|
fn update(_app: &App, _model: &mut Model, _update: Update) {}
|
||
|
|
||
|
const D: f32 = 300.0;
|
||
|
|
||
|
fn view(app: &App, _model: &Model, frame: Frame) {
|
||
|
let t = frame.nth() as f32 / 60.0;
|
||
|
|
||
|
let draw = app.draw();
|
||
|
draw.background().color(SNOW);
|
||
|
|
||
|
let div = map_cos(t, 2.0, 50.0).floor() as i32;
|
||
|
let offset = D / div as f32;
|
||
|
let resolution = map_cos(t, 5.0, 50.0).floor() * 2.0;
|
||
|
|
||
|
for i in (0..=div).rev() {
|
||
|
let fi = i as f32;
|
||
|
draw.scissor(Rect::from_corners(vec2(-D, 0.0), vec2(D, D)))
|
||
|
.ellipse()
|
||
|
.resolution(resolution)
|
||
|
.w_h(offset * fi, offset * fi)
|
||
|
.x(offset * (div as f32 - fi) / 2.0)
|
||
|
.color(srgb(
|
||
|
i as f32 / div as f32,
|
||
|
0.0,
|
||
|
(div - i + 1) as f32 / div as f32,
|
||
|
));
|
||
|
}
|
||
|
for i in (0..=div).rev() {
|
||
|
let fi = i as f32;
|
||
|
draw.scissor(Rect::from_corners(vec2(D, 0.0), vec2(-D, -D)))
|
||
|
.ellipse()
|
||
|
.resolution(resolution)
|
||
|
.w_h(offset * fi, offset * fi)
|
||
|
.x(-offset * (div as f32 - fi) / 2.0)
|
||
|
.color(srgb(
|
||
|
(div - i + 1) as f32 / div as f32,
|
||
|
0.0,
|
||
|
i as f32 / div as f32,
|
||
|
));
|
||
|
}
|
||
|
|
||
|
draw.to_frame(app, &frame).unwrap();
|
||
|
|
||
|
utils::record::record(app, &frame);
|
||
|
}
|