fix: lint

Author: BCsabaEngine

src/lib/3d/stl.ts

@@ -2,19 +2,29 @@ import { writeFloatLE, writeInt16LE, writeInt32LE } from '$lib/buffer';
 
 const SOLID_NAME = 'THT-holder';
 
-const computeFaceNormal = (v: Float32Array, i: number): [number, number, number] => {
+const computeFaceNormal = (v: Float32Array, index: number): [number, number, number] => {
 	const [x0, y0, z0, x1, y1, z1, x2, y2, z2] = [
-		v[i]!, v[i + 1]!, v[i + 2]!,
-		v[i + 3]!, v[i + 4]!, v[i + 5]!,
-		v[i + 6]!, v[i + 7]!, v[i + 8]!,
+		v[index]!,
+		v[index + 1]!,
+		v[index + 2]!,
+		v[index + 3]!,
+		v[index + 4]!,
+		v[index + 5]!,
+		v[index + 6]!,
+		v[index + 7]!,
+		v[index + 8]!
 	];
-	const ex = x1 - x0, ey = y1 - y0, ez = z1 - z0;
-	const fx = x2 - x0, fy = y2 - y0, fz = z2 - z0;
+	const ex = x1 - x0,
+		ey = y1 - y0,
+		ez = z1 - z0;
+	const fx = x2 - x0,
+		fy = y2 - y0,
+		fz = z2 - z0;
 	const nx = ey * fz - ez * fy;
 	const ny = ez * fx - ex * fz;
 	const nz = ex * fy - ey * fx;
-	const len = Math.sqrt(nx * nx + ny * ny + nz * nz);
-	return len > 0 ? [nx / len, ny / len, nz / len] : [0, 0, 0];
+	const length_ = Math.hypot(nx, ny, nz);
+	return length_ > 0 ? [nx / length_, ny / length_, nz / length_] : [0, 0, 0];
 };
 
 export const generateStlFromVertices = (vertices: Float32Array): string[] => {