From 55312b48ae225237d70d2df6cbcb9bdb633fffe3 Mon Sep 17 00:00:00 2001
From: dominik-korsa <29484605+dominik-korsa@users.noreply.github.com>
Date: Sun, 13 Jul 2025 23:06:09 +0200
Subject: [PATCH] Don't use flapMap for a single category in SceneryLayer

---
 src/components/map/SceneryLayer.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/components/map/SceneryLayer.js b/src/components/map/SceneryLayer.js
index 3ea50f5..ee26395 100644
--- a/src/components/map/SceneryLayer.js
+++ b/src/components/map/SceneryLayer.js
@@ -13,12 +13,15 @@ export default function SceneryLayer(props) {
 
     const objects = useMemo(() => {
         if (!scenery || !isVisible) return [];
-        const categoryList = typeof category === 'string' ? [category] : category;
-        return categoryList.flatMap((category) => {
+
+        const getCategoryObjects = (category) => {
             const categoryObjs = scenery.objects[category];
             if (!categoryObjs) return [];
             return Object.values(categoryObjs);
-        });
+        }
+        // flatMap is not used in the case of a single category to avoid an unnecessary array copy
+        if (typeof category === 'string') return getCategoryObjects(category);
+        return category.flatMap(getCategoryObjects);
     }, [scenery, category, isVisible]);
 
     if (!scenery || !isVisible) return null;