turtle-lib/Cargo.toml

@@ -19,4 +19,3 @@ crossbeam = "0.8"
 # For examples and testing
 tracing-subscriber = { version = "0.3", features = ["env-filter", "fmt"] }
 dialog = "*"
-chrono = "0.4"

turtle-lib/examples/bezier.rs

@@ -1,56 +0,0 @@
-//! Cubic Bézier curve example
-//! <https://en.wikipedia.org/wiki/B%C3%A9zier_curve>
-
-use turtle_lib::{turtle_main, vec2};
-
-struct CubicBezier {
-    point0: (f32, f32),
-    point1: (f32, f32),
-    point2: (f32, f32),
-    point3: (f32, f32),
-}
-
-impl CubicBezier {
-    /// Returns the value of this curve at the given parameter t (0.0 to 1.0)
-    pub fn at(&self, t: f64) -> (f32, f32) {
-        let t = t as f32;
-        let mt = 1.0 - t; // (1 - t)
-
-        // Cubic Bézier formula from Wikipedia
-        let p0_weight = mt.powi(3);
-        let p1_weight = 3.0 * mt.powi(2) * t;
-        let p2_weight = 3.0 * mt * t.powi(2);
-        let p3_weight = t.powi(3);
-
-        (
-            self.point0.0 * p0_weight
-                + self.point1.0 * p1_weight
-                + self.point2.0 * p2_weight
-                + self.point3.0 * p3_weight,
-            self.point0.1 * p0_weight
-                + self.point1.1 * p1_weight
-                + self.point2.1 * p2_weight
-                + self.point3.1 * p3_weight,
-        )
-    }
-}
-
-#[turtle_main("Bézier Curve")]
-fn draw(turtle: &mut TurtlePlan) {
-    let curve = CubicBezier {
-        point0: (-200.0, -100.0),
-        point1: (-100.0, 400.0),
-        point2: (100.0, -500.0),
-        point3: (300.0, 200.0),
-    };
-
-    let start = curve.at(0.0);
-    turtle.pen_up().go_to(vec2(start.0, start.1)).pen_down();
-
-    let samples = 100;
-    for i in 0..samples {
-        let t = f64::from(i) / f64::from(samples);
-        let point = curve.at(t);
-        turtle.go_to(vec2(point.0, point.1));
-    }
-}

turtle-lib/examples/clock.rs

@@ -1,91 +0,0 @@
-//! Animated clock example
-//!
-//! This example draws an animated clock that shows the current time.
-//! The clock updates every second to reflect the actual time.
-
-use chrono::{Local, Timelike};
-use macroquad::prelude::{clear_background, is_key_pressed, next_frame, KeyCode, WHITE};
-use turtle_lib::{create_turtle_plan, vec2, DirectionalMovement, Turnable, TurtleApp};
-
-#[macroquad::main("Clock")]
-async fn main() {
-    const HOURS: i32 = 12;
-    const MINUTES: f32 = 60.0;
-    const SECONDS: f32 = 60.0;
-    const FULL_CIRCLE: f32 = 360.0;
-
-    let mut app = TurtleApp::new();
-    let mut last_update = Local::now();
-
-    loop {
-        clear_background(WHITE);
-
-        let now = Local::now();
-
-        // Only redraw when the time changes
-        if now.second() != last_update.second() {
-            let mut turtle = create_turtle_plan();
-            turtle.reset().set_speed(1100).left(90.0); // Instant mode for smooth updates
-
-            // Draw the clock circle and hour markers
-            for i in 1..=HOURS {
-                turtle
-                    .pen_up()
-                    .go_to(vec2(0.0, 0.0))
-                    .right(FULL_CIRCLE / HOURS as f32)
-                    .forward(205.0);
-
-                let pen_size = if (i) % 3 == 0 { 7.0 } else { 2.0 };
-                turtle
-                    .set_pen_width(pen_size)
-                    .pen_down()
-                    .forward(10.0)
-                    .right(90.0)
-                    .write_text(format!("{i}"), 2 * pen_size as i32 + 10)
-                    .left(90.0);
-            }
-
-            // Draw the hour hand
-            turtle
-                .pen_up()
-                .go_to(vec2(0.0, 0.0))
-                .set_heading(90.0)
-                .right(FULL_CIRCLE / HOURS as f32 * (now.hour() % 12) as f32)
-                .set_pen_width(5.0)
-                .pen_down()
-                .forward(120.0);
-
-            // Draw the minute hand
-            turtle
-                .pen_up()
-                .go_to(vec2(0.0, 0.0))
-                .set_heading(90.0)
-                .right(FULL_CIRCLE / MINUTES * now.minute() as f32)
-                .set_pen_width(3.0)
-                .pen_down()
-                .forward(150.0);
-
-            // Draw the second hand
-            turtle
-                .pen_up()
-                .go_to(vec2(0.0, 0.0))
-                .set_heading(90.0)
-                .right(FULL_CIRCLE / SECONDS * now.second() as f32)
-                .set_pen_width(1.0)
-                .pen_down()
-                .forward(180.0);
-
-            app = TurtleApp::new().with_commands(turtle.build());
-            last_update = now;
-        }
-
-        app.update();
-        app.render();
-
-        if is_key_pressed(KeyCode::Escape) || is_key_pressed(KeyCode::Q) {
-            break;
-        }
-
-        next_frame().await;
-    }
-}

turtle-lib/src/builders.rs

@@ -368,8 +368,7 @@ impl TurtlePlan {
     /// }
     /// ```
     pub fn set_heading(&mut self, heading: Precision) -> &mut Self {
-        self.queue
+        self.queue.push(TurtleCommand::SetHeading(heading));
-            .push(TurtleCommand::SetHeading(-heading.to_radians()));
         self
     }
 
@@ -666,6 +665,7 @@ impl TurtlePlan {
     ///           .write_text("End", 16u16);
     /// }
     /// ```
+    #[must_use]
     pub fn write_text<T>(&mut self, text: impl Into<String>, font_size: T) -> &mut Self
     where
         T: Into<FontSize>,