Adds code editing and shape generation

lib/code/generate.ts

@@ -0,0 +1,29 @@
+import Rectangle from "./rectangle"
+import Circle from "./circle"
+import Ellipse from "./ellipse"
+import Polyline from "./polyline"
+import Dot from "./dot"
+import Line from "./line"
+import Vector from "./vector"
+import Utils from "./utils"
+import { codeShapes } from "./index"
+
+const scope = { Dot, Circle, Ellipse, Line, Polyline, Rectangle, Vector, Utils }
+
+/**
+ * Evaluate code, collecting generated shapes in the shape set. Return the
+ * collected shapes as an array.
+ * @param code
+ */
+export function getShapesFromCode(code: string) {
+  codeShapes.clear()
+
+  new Function(...Object.keys(scope), `${code}`)(...Object.values(scope))
+
+  const generatedShapes = Array.from(codeShapes.values()).map((instance) => {
+    instance.shape.isGenerated = true
+    return instance.shape
+  })
+
+  return generatedShapes
+}