From 70dc23701425c6a85383c3df39b742ea378a2ccf Mon Sep 17 00:00:00 2001
From: mix <167040362+mixiate@users.noreply.github.com>
Date: Mon, 7 Apr 2025 21:18:54 +0100
Subject: [PATCH] Prevent station ends, flat rides and shops invalidating
 unnecessarily

---
 src/openrct2/ride/Station.cpp | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/openrct2/ride/Station.cpp b/src/openrct2/ride/Station.cpp
index 7faa4de6a1..4bbf31785e 100644
--- a/src/openrct2/ride/Station.cpp
+++ b/src/openrct2/ride/Station.cpp
@@ -332,10 +332,12 @@ static void RideInvalidateStationStart(Ride& ride, StationIndex stationIndex, bo
     if (tileElement == nullptr)
         return;
 
-    tileElement->AsTrack()->SetHasGreenLight(greenLight);
-
-    // Invalidate map tile
-    MapInvalidateTileZoom1({ startPos, tileElement->GetBaseZ(), tileElement->GetClearanceZ() });
+    TrackElement* const trackElement = tileElement->AsTrack();
+    if (trackElement->HasGreenLight() != greenLight)
+    {
+        trackElement->SetHasGreenLight(greenLight);
+        MapInvalidateTileZoom1({ startPos, tileElement->GetBaseZ(), tileElement->GetClearanceZ() });
+    }
 }
 
 TileElement* RideGetStationStartTrackElement(const Ride& ride, StationIndex stationIndex)