From 40ed5235d32870c337165cdc32ed1d5824e3105f Mon Sep 17 00:00:00 2001
From: Baku Hashimoto <mail@baku89.com>
Date: Mon, 4 Mar 2024 13:23:38 +0900
Subject: [PATCH] Fix Curve.reduce

---
 src/Curve.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/Curve.ts b/src/Curve.ts
index 4d7983a..543c992 100644
--- a/src/Curve.ts
+++ b/src/Curve.ts
@@ -258,7 +258,11 @@ export namespace Curve {
 		})
 
 		if (curve.closed) {
-			if (vertices.length > 1) {
+			if (vertices.length === 0) {
+				if (curve.vertices.length > 0) {
+					vertices = [curve.vertices[0]]
+				}
+			} else if (vertices.length > 1) {
 				const last = vertices.pop()!
 				vertices.unshift(last)
 			}