adds hit testing for hovers

lib/code/index.ts

@@ -0,0 +1,54 @@
+import { Shape } from "types"
+import * as vec from "utils/vec"
+import { getShapeUtils } from "lib/shapes"
+
+export default class CodeShape<T extends Shape> {
+  private _shape: T
+
+  constructor(props: T) {
+    this._shape = props
+    shapeMap.add(this)
+  }
+
+  destroy() {
+    shapeMap.delete(this)
+  }
+
+  moveTo(point: number[]) {
+    this.shape.point = point
+  }
+
+  translate(delta: number[]) {
+    this.shape.point = vec.add(this._shape.point, delta)
+  }
+
+  rotate(rotation: number) {
+    this.shape.rotation = rotation
+  }
+
+  scale(scale: number) {
+    return getShapeUtils(this.shape).scale(this.shape, scale)
+  }
+
+  getBounds() {
+    return getShapeUtils(this.shape).getBounds(this.shape)
+  }
+
+  hitTest(point: number[]) {
+    return getShapeUtils(this.shape).hitTest(this.shape, point)
+  }
+
+  get shape() {
+    return this._shape
+  }
+
+  get point() {
+    return [...this.shape.point]
+  }
+
+  get rotation() {
+    return this.shape.rotation
+  }
+}
+
+export const shapeMap = new Set<CodeShape<Shape>>([])