From b56d95f4faf6694eecf9f11cad2a62d446df96fc Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Fri, 21 Jun 2024 18:15:15 -0500
Subject: [PATCH] fix: skip empty

---
 app/ecs/ecs.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/app/ecs/ecs.js b/app/ecs/ecs.js
index e8e08a0..47274a9 100644
--- a/app/ecs/ecs.js
+++ b/app/ecs/ecs.js
@@ -356,7 +356,9 @@ export default class Ecs {
   toJSON() {
     const entities = {};
     for (const id in this.$$entities) {
-      entities[id] = this.$$entities[id].toJSON();
+      if (this.$$entities[id]) {
+        entities[id] = this.$$entities[id].toJSON();
+      }
     }
     const systems = [];
     for (const systemName in this.Systems) {