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pdiamond.rs
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pdiamond.rs
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use nannou::prelude::*;
use nannou_egui::{self, egui, Egui};
fn main() {
nannou::app(model).update(update).run();
}
struct Model {
phase: f32,
egui: Egui,
settings: Settings,
scale: f32,
}
struct Settings{
s_phase: f32,
p_2: f32,
stripe_width: f32,
rotation: f32,
edge_size: f32,
square_size: f32,
modulate_background: bool,
arrow_direction: f32,
modulate_pink: bool,
modulate_edge: bool,
show_ui:bool,
}
fn model(app: &App) -> Model {
let window_id = app
.new_window()
.view(view)
.raw_event(raw_window_event)
.build()
.unwrap();
let window = app.window(window_id).unwrap();
let egui = Egui::from_window(&window);
Model {scale:1.0, phase: 0.0,egui,settings: Settings {
s_phase: 4.0,
p_2: 1.5707963,
stripe_width: 2.2,
rotation: 0.7853981,
edge_size: 0.005,
square_size: 150.2,
modulate_background: true,
modulate_pink: false,
modulate_edge: true,
show_ui:true,
arrow_direction: PI * 3.0 / 2.0,
}, }
}
fn update(_app: &App, model: &mut Model, _update: Update) {
let egui = &mut model.egui;
if _app.keys.down.contains(&Key::H) {
model.settings.show_ui = !model.settings.show_ui;
}
let _settings = &model.settings;
egui.set_elapsed_time(_update.since_start);
let ctx = egui.begin_frame();
egui::Window::new("Settings").show(&ctx, |ui| {
ui.label("s_phase:");
ui.add(egui::Slider::new( &mut model.settings.s_phase, 0.0..=10.0,));
ui.label("p_2:");
ui.add(egui::Slider::new( &mut model.settings.p_2, 0.0..=6.28,));
ui.label("stripe_width:");
ui.add(egui::Slider::new( &mut model.settings.stripe_width, 0.0..=10.0,));
ui.label("rotation:");
ui.add(egui::Slider::new( &mut model.settings.rotation, 0.0..=9.42,));
ui.label("edge_size:");
ui.add(egui::Slider::new( &mut model.settings.edge_size, 0.0..=0.1,));
ui.label("square_size:");
ui.add(egui::Slider::new( &mut model.settings.square_size, 0.0..=300.0,));
if ui.button("Up").clicked() {
model.settings.p_2 = 4.40;
model.settings.rotation = 0.78;
model.settings.arrow_direction = PI / 2.0;
}
if ui.button("Down").clicked() {
model.settings.p_2 = 1.5708;
model.settings.rotation = 0.78;
model.settings.arrow_direction = PI * 3.0 / 2.0;
}
if ui.button("Left").clicked() {
model.settings.p_2 = 1.5708;
model.settings.rotation = 5.5;
model.settings.arrow_direction = PI;
}
if ui.button("Right").clicked() {
model.settings.p_2 = 4.40;
model.settings.rotation = 5.5;
model.settings.arrow_direction = 0.0;
}
if ui.button("Modulate BG").clicked() {
model.settings.modulate_background = !model.settings.modulate_background;
}
if ui.button("Modulate Pink").clicked() {
model.settings.modulate_pink = !model.settings.modulate_pink;
}
if ui.button("Modulate Edge").clicked() {
model.settings.modulate_edge = !model.settings.modulate_edge;
}
});
model.phase += model.settings.s_phase / 60.0;
}
fn view(app: &App, model: &Model, frame: Frame) {
let draw = app.draw().scale(model.scale);
if model.settings.modulate_background {
draw.background().color(sin_phase_color(model.phase));
} else {
draw.background().color(GRAY);
}
let PI_2 = model.settings.p_2;
let square_size = model.settings.square_size;
let edge_size = model.settings.edge_size;
let rotation = model.settings.rotation;
let diamond_points = vec![
pt2(-square_size, 0.0),
pt2(0.0, square_size),
pt2(square_size, 0.0),
pt2(0.0, -square_size),
];
draw.polygon()
.points(diamond_points.clone())
.color(if model.settings.modulate_pink { sin_phase_color_pink(model.phase) } else { pink_color() });
for (i, point) in diamond_points.iter().enumerate() {
let next_point = diamond_points[(i + 1) % 4];
let edge_start = *point * (1.0 - edge_size);
let edge_end = next_point * (1.0 - edge_size);
let edge_phase = if i < 2 {
model.phase + PI_2
} else {
model.phase - PI_2
};
draw.line()
.start(edge_start.rotate(rotation))
.end(edge_end.rotate(rotation))
.rotate(8.65)
.weight(model.settings.stripe_width)
.color(if model.settings.modulate_edge { sin_phase_color(edge_phase) } else {BLACK});
}
let arrow_length = 50.0;
let arrow_head_length = 10.0;
let arrow_head_width = 10.0;
let arrow_tail = pt2(0.0, 0.0);
let arrow_head = pt2(arrow_length, 0.0).rotate(model.settings.arrow_direction);
let arrow_head_left = arrow_head + pt2(-arrow_head_length, arrow_head_width).rotate(model.settings.arrow_direction);
let arrow_head_right = arrow_head + pt2(-arrow_head_length, -arrow_head_width).rotate(model.settings.arrow_direction);
draw.line()
.start(arrow_tail)
.end(arrow_head)
.color(BLACK);
draw.line()
.start(arrow_head)
.end(arrow_head_left)
.color(BLACK);
draw.line()
.start(arrow_head)
.end(arrow_head_right)
.color(BLACK);
draw.to_frame(app, &frame).unwrap();
if model.settings.show_ui {
model.egui.draw_to_frame(&frame).unwrap();
}
if app.keys.down.contains(&Key::Space) {
let file_path = app
.project_path()
.expect("failed to locate project directory")
.join("frames")
.join(format!("{:0}.png", app.elapsed_frames()));
app.main_window().capture_frame(file_path);
}
}
fn sin_phase_color(phase: f32) -> Srgb<u8> {
let value = (phase.sin() * 0.2 + 0.4) * 255.0;
srgb(value as u8, value as u8, value as u8)
}
fn sin_phase_color_pink(phase: f32) -> Srgb<u8> {
let r = (phase.sin() * 0.1176 + 0.5333) * 255.0;
let g = (phase.sin() * 0.1176 + 0.4117) * 255.0;
let b = (phase.sin() * 0.1176 + 0.4745) * 255.0;
srgb(r as u8, g as u8, b as u8)
}
fn pink_color() -> Srgb<u8> {
srgb(136, 105, 121)
}
fn raw_window_event(_app: &App, model: &mut Model, event: &nannou::winit::event::WindowEvent) {
model.egui.handle_raw_event(event);
if let nannou::winit::event::WindowEvent::MouseWheel { delta, .. } = event {
let cursor_over_egui = model.egui.ctx().wants_pointer_input();
if !cursor_over_egui {
match delta {
nannou::winit::event::MouseScrollDelta::LineDelta(_, y) => {
model.scale *= 1.0 + *y * 0.05;
model.scale = model.scale.max(0.1).min(10.0);
}
_ => (),
}
}
}
if let nannou::winit::event::WindowEvent::KeyboardInput { input, .. } = event {
if let (Some(nannou::winit::event::VirtualKeyCode::F), true) =
(input.virtual_keycode, input.state == nannou::winit::event::ElementState::Pressed)
{
let window = _app.main_window();
let fullscreen = window.fullscreen().is_some();
window.set_fullscreen(!fullscreen);
}
}
}