New node: Bevel (#2067)

* Bevel node

* Fix clippy lints

* Prevent negative values

* Rename flipped() -> reversed()

---------

Co-authored-by: Keavon Chambers <keavon@keavon.com>

libraries/bezier-rs/src/bezier/core.rs

@@ -201,8 +201,11 @@ impl Bezier {
 	/// Returns true if the corresponding points of the two `Bezier`s are within the provided absolute value difference from each other.
 	/// The points considered includes the start, end, and any relevant handles.
 	pub fn abs_diff_eq(&self, other: &Bezier, max_abs_diff: f64) -> bool {
-		let self_points = self.get_points().collect::<Vec<DVec2>>();
-		let other_points = other.get_points().collect::<Vec<DVec2>>();
+		let a = if self.is_linear() { Self::from_linear_dvec2(self.start, self.end) } else { *self };
+		let b = if other.is_linear() { Self::from_linear_dvec2(other.start, other.end) } else { *other };
+
+		let self_points = a.get_points().collect::<Vec<DVec2>>();
+		let other_points = b.get_points().collect::<Vec<DVec2>>();
 
 		self_points.len() == other_points.len() && self_points.into_iter().zip(other_points).all(|(a, b)| a.abs_diff_eq(b, max_abs_diff))
 	}

libraries/bezier-rs/src/bezier/mod.rs

@@ -102,7 +102,7 @@ impl BezierHandles {
 	}
 
 	#[must_use]
-	pub fn flipped(self) -> Self {
+	pub fn reversed(self) -> Self {
 		match self {
 			BezierHandles::Cubic { handle_start, handle_end } => Self::Cubic {
 				handle_start: handle_end,

libraries/bezier-rs/src/bezier/transform.rs

@@ -605,6 +605,16 @@ impl Bezier {
 
 		(arcs, low)
 	}
+
+	/// Reverses the direction of the bézier.
+	#[must_use]
+	pub fn reversed(self) -> Self {
+		Self {
+			start: self.end,
+			end: self.start,
+			handles: self.handles.reversed(),
+		}
+	}
 }
 
 #[cfg(test)]