From 38a907d9bbec7ecbb63f76b1ec417fbf1354b6d2 Mon Sep 17 00:00:00 2001
From: cha0s <git@cha0s.io>
Date: Wed, 5 Jun 2019 20:16:51 -0500
Subject: [PATCH] fix: don't double-add entities

---
 packages/entity/list/index.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/entity/list/index.js b/packages/entity/list/index.js
index abcc975..c1ff277 100644
--- a/packages/entity/list/index.js
+++ b/packages/entity/list/index.js
@@ -44,6 +44,10 @@ export class EntityList extends decorate(class {}) {
 
   addEntity(entity) {
     const uuid = entity.instanceUuid;
+    // Already exists?
+    if (this._entities[uuid]) {
+      return;
+    }
     this._entities[uuid] = entity;
     this._flatEntities.push(entity);
     this._entityTickers.push(entity.tick);