✨ Added tutorial pattern

packages/tutorial/src/step6.js

@@ -0,0 +1,39 @@
+export default function(part) {
+  let { Point, points, Path, paths, measurements, options } = part.shorthand();
+
+  let width = measurements.headCircumference * options.widthRatio;
+  let length = measurements.headCircumference * options.lengthRatio;
+
+  points.edgeLeft = new Point(points.topLeft.x, points.left.y);
+  points.edgeRight = new Point(points.topRight.x, points.right.y);
+  points.edgeTop = new Point(0, points.topLeft.y);
+
+  points.edgeLeftCp = points.edgeLeft.shiftFractionTowards(points.topLeft, 0.5);
+  points.edgeRightCp = points.edgeLeftCp.flipX();
+  points.edgeTopLeftCp = points.edgeTop.shiftFractionTowards(
+    points.topLeft,
+    0.5
+  );
+  points.edgeTopRightCp = points.edgeTopLeftCp.flipX();
+
+  paths.rect = new Path()
+    .move(points.edgeTop)
+    .curve(points.edgeTopLeftCp, points.edgeLeftCp, points.edgeLeft)
+    .line(points.bottomLeft)
+    .line(points.bottomRight)
+    .line(points.edgeRight)
+    .curve(points.edgeRightCp, points.edgeTopRightCp, points.edgeTop)
+    .close();
+
+  // Complete?
+  if (complete) {
+    if (sa) {
+    }
+
+    // Paperless?
+    if (paperless) {
+    }
+  }
+
+  return part;
+}