[Init] - Introduction to nannou

.gitignore

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+/target

Cargo.toml

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+[package]
+name = "hello-nannou"
+version = "0.1.0"
+authors = ["adnan adnangonzagadevio@gmail.com"]
+edition = "2021"
+
+[dependencies]
+nannou = "0.19.0"

src/main.rs

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+use nannou::prelude::*;
+
+fn main() {
+    nannou::app(model).update(update).simple_window(view).run();
+}
+fn rotated_rect(draw: &Draw, x: f32, y: f32, w: f32, h: f32, degrees: f32) {
+    draw.rect()
+        .x_y(x, y)
+        .w_h(h, w)
+        .z_degrees(degrees)
+        .color(PLUM);
+}
+struct Model {}
+
+fn model(_app: &App) -> Model {
+    Model {}
+}
+
+fn update(_app: &App, _model: &mut Model, _update: Update) {}
+
+fn view(_app: &App, _model: &Model, frame: Frame) {
+    let draw = _app.draw();
+    draw.background().color(WHITE);
+    rotated_rect(&draw, 0.0, 0.0, 100.0, 100.0, 45.0);
+    draw.rect().x_y(0.0, 0.0).w_h(100.0, 100.0).color(RED);
+    draw.rect().x_y(50.0, 50.0).w_h(100.0, 100.0).color(GREEN);
+    let side = 100.0;
+    let top_left = pt2(-300.0, 200.0);
+    let offset = vec2(side / 2.0, -side / 2.0);
+    let xy = top_left + offset;
+    draw.rect().xy(xy).w_h(side, side).color(BLUE);
+    let win = _app.window_rect();
+    let pad = 25.0;
+    let win_p = win.pad(pad);
+    let r = Rect::from_w_h(100.0, 100.0).top_left_of(win_p);
+    draw.rect().xy(r.xy()).wh(r.wh()).color(PALEVIOLETRED);
+
+    draw.rect()
+        .xy(win_p.xy())
+        .wh(win_p.wh())
+        .color(rgba(0.3, 0.4, 0.7, 0.5));
+
+    let square = Rect::from_w_h(100.0, 100.0).top_left_of(win_p);
+
+    draw.rect().xy(square.xy()).wh(square.wh()).color(PURPLE);
+
+    let circle = square.below(square).shift_y(-pad);
+    draw.ellipse().xy(circle.xy()).wh(circle.wh()).color(SALMON);
+    draw.to_frame(_app, &frame).unwrap();
+    //frame.clear(PURPLE);
+}