add hw2

node_modules/roughjs/bin/fillers/scan-line-hachure.js

@@ -0,0 +1,17 @@
+import { hachureLines } from 'hachure-fill';
+export function polygonHachureLines(polygonList, o) {
+    var _a;
+    const angle = o.hachureAngle + 90;
+    let gap = o.hachureGap;
+    if (gap < 0) {
+        gap = o.strokeWidth * 4;
+    }
+    gap = Math.round(Math.max(gap, 0.1));
+    let skipOffset = 1;
+    if (o.roughness >= 1) {
+        if ((((_a = o.randomizer) === null || _a === void 0 ? void 0 : _a.next()) || Math.random()) > 0.7) {
+            skipOffset = gap;
+        }
+    }
+    return hachureLines(polygonList, gap, angle, skipOffset || 1);
+}