From 9b042bf9ff52a93825dec93cc5f4563eca31587f Mon Sep 17 00:00:00 2001
From: pissang <bm2736892@gmail.com>
Date: Sun, 12 Feb 2023 19:48:38 +0800
Subject: [PATCH] fix window not defined

---
 package.json               | 2 +-
 src/plugin/OrbitControl.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index f90c7f58..c19c073a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "claygl-next",
-  "version": "2.0.0-alpha.8",
+  "version": "2.0.0-alpha.9",
   "description": "A 3D graphic library",
   "keywords": [
     "graphic",
diff --git a/src/plugin/OrbitControl.ts b/src/plugin/OrbitControl.ts
index bc6c53ae..8df2c9ae 100644
--- a/src/plugin/OrbitControl.ts
+++ b/src/plugin/OrbitControl.ts
@@ -143,7 +143,7 @@ interface OrbitControl
     'autoRotate' | 'target' | 'distance' | 'orthographicSize' | 'alpha' | 'beta' | 'center'
   > {}
 
-const useTouchEvent = 'ontouchstart' in window;
+const useTouchEvent = typeof window !== 'undefined' && 'ontouchstart' in window;
 
 class OrbitControl extends Notifier {
   disabled = false;