refactor: moved rotate to separate method

packages/pinball_components/lib/src/components/shapes/arc_shape.dart

@@ -13,17 +13,14 @@ class ArcShape extends ChainShape {
     required this.center,
     required this.arcRadius,
     required this.angle,
-    this.rotation = 0,
   }) {
-    final points = calculateArc(
+    createChain(
+      calculateArc(
         center: center,
         radius: arcRadius,
         angle: angle,
-    ).map((vector) => vector..rotate(rotation)).toList();
+      ),
-    if (rotation != 0) {
+    );
-      points.map((vector) => vector..rotate(rotation)).toList();
-    }
-    createChain(points);
   }
 
   /// The center of the arc.
@@ -38,19 +35,19 @@ class ArcShape extends ChainShape {
   /// For example, two pi returns a complete circumference.
   final double angle;
 
-  /// Angle in radians to rotate the arc around its [center].
+  /// Rotates the arc by a given [angle] in radians.
-  final double rotation;
+  void rotate(double angle) {
+    vertices.map((vector) => vector..rotate(angle)).toList();
+  }
 
   ArcShape copyWith({
     Vector2? center,
     double? arcRadius,
     double? angle,
-    double? rotation,
   }) =>
       ArcShape(
         center: center ?? this.center,
         arcRadius: arcRadius ?? this.arcRadius,
         angle: angle ?? this.angle,
-        rotation: rotation ?? this.rotation,
       );
 }

packages/pinball_components/lib/src/components/shapes/bezier_curve_shape.dart

@@ -11,15 +11,8 @@ class BezierCurveShape extends ChainShape {
   /// {@macro bezier_curve_shape}
   BezierCurveShape({
     required this.controlPoints,
-    this.rotation = 0,
   }) {
-    final points = calculateBezierCurve(controlPoints: controlPoints)
+    createChain(calculateBezierCurve(controlPoints: controlPoints));
-        .map((vector) => vector..rotate(rotation))
-        .toList();
-    if (rotation != 0) {
-      points.map((vector) => vector..rotate(rotation)).toList();
-    }
-    createChain(points);
   }
 
   /// Specifies the control points of the curve.
@@ -28,6 +21,8 @@ class BezierCurveShape extends ChainShape {
   /// inner points between them set its final shape.
   final List<Vector2> controlPoints;
 
-  /// Which can be rotated by a given [rotation] in radians.
+  /// Rotates the bezier curve by a given [angle] in radians.
-  final double rotation;
+  void rotate(double angle) {
+    vertices.map((vector) => vector..rotate(angle)).toList();
+  }
 }

packages/pinball_components/lib/src/components/shapes/ellipse_shape.dart

@@ -13,17 +13,14 @@ class EllipseShape extends ChainShape {
     required this.center,
     required this.majorRadius,
     required this.minorRadius,
-    this.rotation = 0,
   }) {
-    final points = calculateEllipse(
+    createChain(
+      calculateEllipse(
         center: center,
         majorRadius: majorRadius,
         minorRadius: minorRadius,
+      ),
     );
-    if (rotation != 0) {
-      points.map((vector) => vector..rotate(rotation)).toList();
-    }
-    createChain(points);
   }
 
   /// The top left corner of the ellipse.
@@ -38,19 +35,19 @@ class EllipseShape extends ChainShape {
   /// Minor radius is specified by [minorRadius].
   final double minorRadius;
 
-  /// Which can be rotated by a given [rotation] in radians.
+  /// Rotates the ellipse by a given [angle] in radians.
-  final double rotation;
+  void rotate(double angle) {
+    vertices.map((vector) => vector..rotate(angle)).toList();
+  }
 
   EllipseShape copyWith({
     Vector2? center,
     double? majorRadius,
     double? minorRadius,
-    double? rotation,
   }) =>
       EllipseShape(
         center: center ?? this.center,
         majorRadius: majorRadius ?? this.majorRadius,
         minorRadius: minorRadius ?? this.minorRadius,
-        rotation: rotation ?? this.rotation,
       );
 }