remove strength multiplication in smoothing function

Author: g-harel

internal/blobs.ts

@@ -20,7 +20,7 @@ export const genBlob = (points: number, offset: () => number): Shape => {
     }
 
     // https://math.stackexchange.com/a/873589/235756
-    const smoothingStrength = ((4 / 3) * Math.tan(angle / 4)) / Math.sin(angle / 2);
+    const smoothingStrength = ((4 / 3) * Math.tan(angle / 4)) / Math.sin(angle / 2) / 2;
 
     return smooth(shape, smoothingStrength);
 };

internal/util.ts

@@ -103,10 +103,7 @@ export const insertCount = (count: number, a: Point, b: Point): Shape => {
 // Smooths out the path made up of the given points.
 // Existing handles are ignored.
 export const smooth = (shape: Shape, strength: number): Shape => {
-    if (shape.length < 3) throw new Error("not enough points to smooth shape");
-
     const out: Shape = [];
-
     for (let i = 0; i < shape.length; i++) {
         const curr = shape[i];
         const before = shape[mod(i - 1, shape.length)];
@@ -118,15 +115,14 @@ export const smooth = (shape: Shape, strength: number): Shape => {
             y: curr.y,
             handleIn: {
                 angle: angle + Math.PI,
-                length: strength * (1 / 2) * distance(curr, before),
+                length: strength * distance(curr, before),
             },
             handleOut: {
                 angle,
-                length: strength * (1 / 2) * distance(curr, after),
+                length: strength * distance(curr, after),
             },
         });
     }
-
     return out;
 };