Sketch: Spinny :D

03_spinny/.gitignore

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+/target
+
+# ffmpeg -framerate 60 -i recordings/%05d.png -pix_fmt yuv420p recording.mp4
+/recordings
+/recording.mp4

03_spinny/Cargo.toml

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+[package]
+name = "sketch_spinny"
+version = "0.1.0"
+edition = "2018"
+
+[dependencies]
+sketchlib = { path = "../sketchlib" }

03_spinny/src/main.rs

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+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();
+}