add prettier, fix TS stuff

.prettierrc

@@ -0,0 +1,9 @@
+{
+    "printWidth": 110,
+    "singleQuote": true,
+    "quoteProps": "consistent",
+    "tabWidth": 4,
+    "useTabs": false,
+    "semi": false,
+    "arrowParens": "avoid"
+}

src/scripts/circuits-art.ts

@@ -68,7 +68,7 @@ function setup() {
 
     const startTime = new Date()
 
-    const handle = setInterval(() => {
+    const handle = window.setInterval(() => {
         const time = new Date().getTime() - startTime.getTime()
 
         update(state, g.canvas.width, g.canvas.height, time)
@@ -264,16 +264,26 @@ const DIR_AVAILABLE_PREDICATE: Record<WireDirection, (pos: Point2, grid: Grid<Wi
         !grid.has([x, y + 1]) &&
         implies(grid.has([x - 1, y]), () => grid.get([x - 1, y]) !== 'down-right') &&
         implies(grid.has([x + 1, y]), () => grid.get([x + 1, y]) !== 'down-left'),
-    ['down-left']: ([x, y], grid) => !grid.has([x - 1, y + 1]) && implies(grid.has([x - 1, y]), () => grid.get([x - 1, y]) === 'down-left'),
+    ['down-left']: ([x, y], grid) =>
+        !grid.has([x - 1, y + 1]) &&
+        implies(grid.has([x - 1, y]), () => grid.get([x - 1, y]) === 'down-left'),
     ['down-right']: ([x, y], grid) =>
-        !grid.has([x + 1, y + 1]) && implies(grid.has([x + 1, y]), () => grid.get([x + 1, y]) === 'down-right'),
+        !grid.has([x + 1, y + 1]) &&
+        implies(grid.has([x + 1, y]), () => grid.get([x + 1, y]) === 'down-right'),
 }
 
-function pruneDirections(grid: Grid<WireCell>, position: Point2, directions: WireDirection[]): WireDirection[] {
+function pruneDirections(
+    grid: Grid<WireCell>,
+    position: Point2,
+    directions: WireDirection[]
+): WireDirection[] {
     return directions.filter(dir => DIR_AVAILABLE_PREDICATE[dir](position, grid))
 }
 
-function generateWire(grid: Grid<WireCell>, startingPoint: Point2): { position: Point2; direction: WireCell }[] {
+function generateWire(
+    grid: Grid<WireCell>,
+    startingPoint: Point2
+): { position: Point2; direction: WireCell }[] {
     const segmentLength = Math.floor(1 - Math.random() ** 2) * 10 + 30
     let currentPosition = startingPoint
     let currentDirection: WireDirection = randomChoice(['down', 'down', 'down', 'down-left', 'down-right'])
@@ -281,7 +291,11 @@ function generateWire(grid: Grid<WireCell>, startingPoint: Point2): { position:
     const steps: { position: Point2; direction: WireCell }[] = []
 
     for (let i = 0; i < segmentLength; i++) {
-        const availableDirections = pruneDirections(grid, currentPosition, ['down', 'down-left', 'down-right'])
+        const availableDirections = pruneDirections(grid, currentPosition, [
+            'down',
+            'down-left',
+            'down-right',
+        ])
         if (availableDirections.length === 0) {
             break
         } else {
@@ -290,7 +304,10 @@ function generateWire(grid: Grid<WireCell>, startingPoint: Point2): { position:
                     ? currentDirection
                     : randomChoice(availableDirections)
 
-            if ((currentDirection === 'down-left' && dir === 'down-right') || (currentDirection === 'down-right' && dir === 'down-left')) {
+            if (
+                (currentDirection === 'down-left' && dir === 'down-right') ||
+                (currentDirection === 'down-right' && dir === 'down-left')
+            ) {
                 break
             }