fixes code bug, adds sketchy circle

components/canvas/cursor.tsx

@@ -6,7 +6,6 @@ export default function Cursor() {
 
   useEffect(() => {
     function updatePosition(e: PointerEvent) {
-      console.log('hi')
       const cursor = rCursor.current
 
       cursor.setAttribute(

components/code-panel/code-panel.tsx

@@ -82,7 +82,7 @@ export default function CodePanel() {
         let error = null
 
         try {
-          const { shapes, controls } = generateFromCode(data.code)
+          const { shapes, controls } = generateFromCode(state.data, data.code)
           state.send('GENERATED_FROM_CODE', { shapes, controls })
         } catch (e) {
           console.error(e)

lib/code/circle.ts

@@ -11,10 +11,10 @@ export default class Circle extends CodeShape<CircleShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Circle,
       isGenerated: true,
       name: 'Circle',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       rotation: 0,
@@ -22,8 +22,8 @@ export default class Circle extends CodeShape<CircleShape> {
       isAspectRatioLocked: false,
       isLocked: false,
       isHidden: false,
-      style: defaultStyle,
       ...props,
+      style: { ...defaultStyle, ...props.style },
     })
   }
 

lib/code/dot.ts

@@ -11,10 +11,10 @@ export default class Dot extends CodeShape<DotShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Dot,
       isGenerated: true,
       name: 'Dot',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       rotation: 0,
@@ -25,7 +25,7 @@ export default class Dot extends CodeShape<DotShape> {
       style: {
         ...defaultStyle,
         ...props.style,
-        isFilled: false,
+        isFilled: true,
       },
     })
   }

lib/code/ellipse.ts

@@ -11,10 +11,10 @@ export default class Ellipse extends CodeShape<EllipseShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Ellipse,
       isGenerated: true,
       name: 'Ellipse',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       radiusX: 20,
@@ -23,8 +23,8 @@ export default class Ellipse extends CodeShape<EllipseShape> {
       isAspectRatioLocked: false,
       isLocked: false,
       isHidden: false,
-      style: defaultStyle,
       ...props,
+      style: { ...defaultStyle, ...props.style },
     })
   }
 

lib/code/generate.ts

@@ -1,15 +1,15 @@
-import Rectangle from "./rectangle"
-import Circle from "./circle"
-import Ellipse from "./ellipse"
-import Polyline from "./polyline"
-import Dot from "./dot"
-import Ray from "./ray"
-import Line from "./line"
-import Vector from "./vector"
-import Utils from "./utils"
-import { NumberControl, VectorControl, codeControls, controls } from "./control"
-import { codeShapes } from "./index"
-import { CodeControl } from "types"
+import Rectangle from './rectangle'
+import Circle from './circle'
+import Ellipse from './ellipse'
+import Polyline from './polyline'
+import Dot from './dot'
+import Ray from './ray'
+import Line from './line'
+import Vector from './vector'
+import Utils from './utils'
+import { NumberControl, VectorControl, codeControls, controls } from './control'
+import { codeShapes } from './index'
+import { CodeControl, Data } from 'types'
 
 const baseScope = {
   Dot,
@@ -30,12 +30,14 @@ const baseScope = {
  * collected shapes as an array.
  * @param code
  */
-export function generateFromCode(code: string) {
+export function generateFromCode(data: Data, code: string) {
   codeControls.clear()
   codeShapes.clear()
   ;(window as any).isUpdatingCode = false
+  ;(window as any).currentPageId = data.currentPageId
 
-  const scope = { ...baseScope, controls }
+  const { currentPageId } = data
+  const scope = { ...baseScope, controls, currentPageId }
 
   new Function(...Object.keys(scope), `${code}`)(...Object.values(scope))
 
@@ -53,15 +55,16 @@ export function generateFromCode(code: string) {
  * collected shapes as an array.
  * @param code
  */
-export function updateFromCode(
-  code: string,
-  controls: Record<string, CodeControl>
-) {
+export function updateFromCode(data: Data, code: string) {
   codeShapes.clear()
   ;(window as any).isUpdatingCode = true
+  ;(window as any).currentPageId = data.currentPageId
+
+  const { currentPageId } = data
 
   const scope = {
     ...baseScope,
+    currentPageId,
     controls: Object.fromEntries(
       Object.entries(controls).map(([id, control]) => [
         control.label,

lib/code/line.ts

@@ -12,10 +12,10 @@ export default class Line extends CodeShape<LineShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Line,
       isGenerated: true,
       name: 'Line',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       direction: [-0.5, 0.5],

lib/code/polyline.ts

@@ -12,10 +12,10 @@ export default class Polyline extends CodeShape<PolylineShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Polyline,
       isGenerated: true,
       name: 'Polyline',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       points: [[0, 0]],

lib/code/rectangle.ts

@@ -12,10 +12,10 @@ export default class Rectangle extends CodeShape<RectangleShape> {
     super({
       id: uuid(),
       seed: Math.random(),
+      parentId: (window as any).currentPageId,
       type: ShapeType.Rectangle,
       isGenerated: true,
       name: 'Rectangle',
-      parentId: 'page0',
       childIndex: 0,
       point: [0, 0],
       size: [100, 100],
@@ -24,8 +24,8 @@ export default class Rectangle extends CodeShape<RectangleShape> {
       isAspectRatioLocked: false,
       isLocked: false,
       isHidden: false,
-      style: defaultStyle,
       ...props,
+      style: { ...defaultStyle, ...props.style },
     })
   }
 

lib/code/utils.ts

@@ -1,5 +1,5 @@
-import { Bounds } from "types"
-import Vector, { Point } from "./vector"
+import { Bounds } from 'types'
+import Vector, { Point } from './vector'
 
 export default class Utils {
   static getRayRayIntersection(p0: Vector, n0: Vector, p1: Vector, n1: Vector) {

lib/code/vector.ts

@@ -16,7 +16,7 @@ export default class Vector {
   constructor(vector: Vector, b?: undefined)
   constructor(options: Point, b?: undefined)
   constructor(a: VectorOptions | Vector | number, b?: number) {
-    if (typeof a === "number") {
+    if (typeof a === 'number') {
       this.x = a
       this.y = b
     } else {
@@ -415,7 +415,7 @@ export default class Vector {
   }
 
   static cast(v: Point | Vector) {
-    return "cast" in v ? v : new Vector(v)
+    return 'cast' in v ? v : new Vector(v)
   }
 
   static from(v: Vector) {

lib/shape-utils/dot.tsx

@@ -34,7 +34,7 @@ const dot = registerShapeUtils<DotShape>({
   },
 
   render({ id }) {
-    return <use href="#dot" />
+    return <use id={id} href="#dot" fill="black" />
   },
 
   getBounds(shape) {

lib/shape-utils/ellipse.tsx

@@ -1,17 +1,25 @@
 import { v4 as uuid } from 'uuid'
 import * as vec from 'utils/vec'
 import { EllipseShape, ShapeType } from 'types'
-import { registerShapeUtils } from './index'
+import { getShapeUtils, registerShapeUtils } from './index'
 import { boundsContained, getRotatedEllipseBounds } from 'utils/bounds'
 import { intersectEllipseBounds } from 'utils/intersections'
 import { pointInEllipse } from 'utils/hitTests'
 import {
+  ease,
   getBoundsFromPoints,
   getRotatedCorners,
+  getSvgPathFromStroke,
+  pointsBetween,
+  rng,
   rotateBounds,
+  shuffleArr,
   translateBounds,
 } from 'utils/utils'
 import { defaultStyle, getShapeStyle } from 'lib/shape-styles'
+import getStroke from 'perfect-freehand'
+
+const pathCache = new WeakMap<EllipseShape, string>([])
 
 const ellipse = registerShapeUtils<EllipseShape>({
   boundsCache: new WeakMap([]),
@@ -37,17 +45,39 @@ const ellipse = registerShapeUtils<EllipseShape>({
     }
   },
 
-  render({ id, radiusX, radiusY, style }) {
+  render(shape) {
+    const { id, radiusX, radiusY, style } = shape
     const styles = getShapeStyle(style)
+
+    if (!pathCache.has(shape)) {
+      renderPath(shape)
+    }
+
+    const path = pathCache.get(shape)
+
     return (
-      <ellipse
-        id={id}
-        cx={radiusX}
-        cy={radiusY}
-        rx={Math.max(0, radiusX - Number(styles.strokeWidth) / 2)}
-        ry={Math.max(0, radiusY - Number(styles.strokeWidth) / 2)}
-      />
+      <g id={id}>
+        <ellipse
+          id={id}
+          cx={radiusX}
+          cy={radiusY}
+          rx={Math.max(0, radiusX - Number(styles.strokeWidth) / 2)}
+          ry={Math.max(0, radiusY - Number(styles.strokeWidth) / 2)}
+          stroke="none"
+        />
+        <path d={path} fill={styles.stroke} />
+      </g>
     )
+
+    // return (
+    //   <ellipse
+    //     id={id}
+    //     cx={radiusX}
+    //     cy={radiusY}
+    //     rx={Math.max(0, radiusX - Number(styles.strokeWidth) / 2)}
+    //     ry={Math.max(0, radiusY - Number(styles.strokeWidth) / 2)}
+    //   />
+    // )
   },
 
   getBounds(shape) {
@@ -129,3 +159,53 @@ const ellipse = registerShapeUtils<EllipseShape>({
 })
 
 export default ellipse
+
+function renderPath(shape: EllipseShape) {
+  const { style, id, radiusX, radiusY, point } = shape
+
+  const getRandom = rng(id)
+
+  const center = vec.sub(getShapeUtils(shape).getCenter(shape), point)
+
+  const strokeWidth = +getShapeStyle(style).strokeWidth
+
+  const rx = radiusX + getRandom() * strokeWidth
+  const ry = radiusY + getRandom() * strokeWidth
+
+  const points: number[][] = []
+  const start = Math.PI + Math.PI * getRandom()
+
+  const overlap = Math.PI / 12
+
+  for (let i = 2; i < 8; i++) {
+    const rads = start + overlap * 2 * (i / 8)
+    const x = rx * Math.cos(rads) + center[0]
+    const y = ry * Math.sin(rads) + center[1]
+    points.push([x, y])
+  }
+
+  for (let i = 5; i < 32; i++) {
+    const rads = start + overlap * 2 + Math.PI * 2.5 * ease(i / 35)
+    const x = rx * Math.cos(rads) + center[0]
+    const y = ry * Math.sin(rads) + center[1]
+    points.push([x, y])
+  }
+
+  for (let i = 0; i < 8; i++) {
+    const rads = start + overlap * 2 * (i / 4)
+    const x = rx * Math.cos(rads) + center[0]
+    const y = ry * Math.sin(rads) + center[1]
+    points.push([x, y])
+  }
+
+  const stroke = getStroke(points, {
+    size: 1 + strokeWidth * 2,
+    thinning: 0.6,
+    easing: (t) => t * t * t * t,
+    end: { taper: strokeWidth * 20 },
+    start: { taper: strokeWidth * 20 },
+    simulatePressure: false,
+  })
+
+  pathCache.set(shape, getSvgPathFromStroke(stroke))
+}

lib/shape-utils/rectangle.tsx

@@ -2,7 +2,13 @@ import { v4 as uuid } from 'uuid'
 import * as vec from 'utils/vec'
 import { RectangleShape, ShapeType } from 'types'
 import { registerShapeUtils } from './index'
-import { getSvgPathFromStroke, translateBounds, getNoise } from 'utils/utils'
+import {
+  getSvgPathFromStroke,
+  translateBounds,
+  rng,
+  shuffleArr,
+  pointsBetween,
+} from 'utils/utils'
 import { defaultStyle, getShapeStyle } from 'lib/shape-styles'
 import getStroke from 'perfect-freehand'
 
@@ -33,7 +39,7 @@ const rectangle = registerShapeUtils<RectangleShape>({
   },
 
   render(shape) {
-    const { id, size, radius, style, point } = shape
+    const { id, size, radius, style } = shape
     const styles = getShapeStyle(style)
 
     if (!pathCache.has(shape)) {
@@ -117,29 +123,16 @@ const rectangle = registerShapeUtils<RectangleShape>({
 
 export default rectangle
 
-function easeInOut(t: number) {
-  return t * (2 - t)
-}
-
-function ease(t: number) {
-  return t * t * t
-}
-
-function pointsBetween(a: number[], b: number[], steps = 6) {
-  return Array.from(Array(steps))
-    .map((_, i) => ease(i / steps))
-    .map((t) => [...vec.lrp(a, b, t), (1 - t) / 2])
-}
-
 function renderPath(shape: RectangleShape) {
   const styles = getShapeStyle(shape.style)
 
-  const noise = getNoise(shape.seed)
-  const off = -0.25 + shape.seed / 2
+  const getRandom = rng(shape.id)
+
+  const baseOffset = +styles.strokeWidth / 2
 
   const offsets = Array.from(Array(4)).map((_, i) => [
-    noise(i, i + 1) * off * 16,
-    noise(i + 2, i + 3) * off * 16,
+    getRandom() * baseOffset,
+    getRandom() * baseOffset,
   ])
 
   const [w, h] = shape.size
@@ -155,17 +148,11 @@ function renderPath(shape: RectangleShape) {
       pointsBetween(bl, tl),
       pointsBetween(tl, tr),
     ],
-    shape.id.charCodeAt(5)
+    Math.floor(5 + getRandom() * 4)
   )
 
   const stroke = getStroke(
-    [
-      ...lines.flat().slice(4),
-      ...lines[0].slice(0, 4),
-      lines[0][4],
-      lines[0][5],
-      lines[0][5],
-    ],
+    [...lines.flat().slice(2), ...lines[0], ...lines[0].slice(4)],
     {
       size: 1 + +styles.strokeWidth * 2,
       thinning: 0.6,
@@ -178,7 +165,3 @@ function renderPath(shape: RectangleShape) {
 
   pathCache.set(shape, getSvgPathFromStroke(stroke))
 }
-
-function shuffleArr<T>(arr: T[], offset: number): T[] {
-  return arr.map((_, i) => arr[(i + offset) % arr.length])
-}

state/sessions/translate-session.ts

@@ -33,9 +33,6 @@ export default class TranslateSession extends BaseSession {
     const { shapes } = getPage(data, currentPageId)
 
     const delta = vec.vec(this.origin, point)
-    const trueDelta = vec.sub(delta, this.prev)
-    this.delta = delta
-    this.prev = delta
 
     if (isAligned) {
       if (Math.abs(delta[0]) < Math.abs(delta[1])) {
@@ -45,13 +42,17 @@ export default class TranslateSession extends BaseSession {
       }
     }
 
+    const trueDelta = vec.sub(delta, this.prev)
+    this.delta = delta
+    this.prev = delta
+
     if (isCloning) {
       if (!this.isCloning) {
         this.isCloning = true
 
-        for (const { id, point } of initialShapes) {
+        for (const { id } of initialShapes) {
           const shape = shapes[id]
-          getShapeUtils(shape).translateTo(shape, point)
+          getShapeUtils(shape).translateBy(shape, trueDelta)
         }
 
         for (const clone of clones) {
@@ -70,9 +71,9 @@ export default class TranslateSession extends BaseSession {
         )
       }
 
-      for (const { id, point } of clones) {
+      for (const { id } of clones) {
         const shape = shapes[id]
-        getShapeUtils(shape).translateTo(shape, vec.add(point, delta))
+        getShapeUtils(shape).translateBy(shape, trueDelta)
       }
 
       updateParents(
@@ -186,6 +187,7 @@ export function getTranslateSnapshot(data: Data) {
     clones: selectedShapes
       .filter((shape) => shape.type !== ShapeType.Group)
       .flatMap((shape) => {
+        // TODO: Clone children recursively
         const clone = {
           ...shape,
           id: uuid(),

state/state.ts

@@ -1382,8 +1382,8 @@ const state = createState({
 
       try {
         const { shapes } = updateFromCode(
-          data.document.code[data.currentCodeFileId].code,
-          data.codeControls
+          data,
+          data.document.code[data.currentCodeFileId].code
         )
 
         commands.generate(data, data.currentPageId, shapes)

utils/utils.ts

@@ -1695,68 +1695,45 @@ const Grad = [
   [0, -1],
 ]
 
-// Thanks to joshforisha
-// https://github.com/joshforisha/fast-simplex-noise-js/blob/main/src/2d.ts
-export function getNoise(seed = Math.random()) {
-  const p = new Uint8Array(256)
-  for (let i = 0; i < 256; i++) p[i] = i
-
-  let n: number
-  let q: number
-  for (let i = 255; i > 0; i--) {
-    n = Math.floor((i + 1) * seed)
-    q = p[i]
-    p[i] = p[n]
-    p[n] = q
+/**
+ * Seeded random number generator, using [xorshift](https://en.wikipedia.org/wiki/Xorshift).
+ * The result will always be betweeen -1 and 1.
+ *
+ * Adapted from [seedrandom](https://github.com/davidbau/seedrandom).
+ */
+export function rng(seed = '') {
+  let x = 0
+  let y = 0
+  let z = 0
+  let w = 0
+
+  function next() {
+    const t = x ^ (x << 11)
+    x = y
+    y = z
+    z = w
+    w ^= ((w >>> 19) ^ t ^ (t >>> 8)) >>> 0
+    return w / 0x100000000
   }
 
-  const perm = new Uint8Array(512)
-  const permMod12 = new Uint8Array(512)
-  for (let i = 0; i < 512; i++) {
-    perm[i] = p[i & 255]
-    permMod12[i] = perm[i] % 12
+  for (var k = 0; k < seed.length + 64; k++) {
+    x ^= seed.charCodeAt(k) | 0
+    next()
   }
 
-  return (x: number, y: number): number => {
-    // Skew the input space to determine which simplex cell we're in
-    const s = (x + y) * 0.5 * (Math.sqrt(3.0) - 1.0) // Hairy factor for 2D
-    const i = Math.floor(x + s)
-    const j = Math.floor(y + s)
-    const t = (i + j) * G2
-    const X0 = i - t // Unskew the cell origin back to (x,y) space
-    const Y0 = j - t
-    const x0 = x - X0 // The x,y distances from the cell origin
-    const y0 = y - Y0
-
-    // Determine which simplex we are in.
-    const i1 = x0 > y0 ? 1 : 0
-    const j1 = x0 > y0 ? 0 : 1
-
-    // Offsets for corners
-    const x1 = x0 - i1 + G2
-    const y1 = y0 - j1 + G2
-    const x2 = x0 - 1.0 + 2.0 * G2
-    const y2 = y0 - 1.0 + 2.0 * G2
-
-    // Work out the hashed gradient indices of the three simplex corners
-    const ii = i & 255
-    const jj = j & 255
-    const g0 = Grad[permMod12[ii + perm[jj]]]
-    const g1 = Grad[permMod12[ii + i1 + perm[jj + j1]]]
-    const g2 = Grad[permMod12[ii + 1 + perm[jj + 1]]]
-
-    // Calculate the contribution from the three corners
-    const t0 = 0.5 - x0 * x0 - y0 * y0
-    const n0 = t0 < 0 ? 0.0 : Math.pow(t0, 4) * (g0[0] * x0 + g0[1] * y0)
-
-    const t1 = 0.5 - x1 * x1 - y1 * y1
-    const n1 = t1 < 0 ? 0.0 : Math.pow(t1, 4) * (g1[0] * x1 + g1[1] * y1)
-
-    const t2 = 0.5 - x2 * x2 - y2 * y2
-    const n2 = t2 < 0 ? 0.0 : Math.pow(t2, 4) * (g2[0] * x2 + g2[1] * y2)
-
-    // Add contributions from each corner to get the final noise value.
-    // The result is scaled to return values in the interval [-1, 1]
-    return 70.14805770653952 * (n0 + n1 + n2)
-  }
+  return next
+}
+
+export function ease(t: number) {
+  return t * t * t
+}
+
+export function pointsBetween(a: number[], b: number[], steps = 6) {
+  return Array.from(Array(steps))
+    .map((_, i) => ease(i / steps))
+    .map((t) => [...vec.lrp(a, b, t), (1 - t) / 2])
+}
+
+export function shuffleArr<T>(arr: T[], offset: number): T[] {
+  return arr.map((_, i) => arr[(i + offset) % arr.length])
 }