From d13d61f13c1d8b7718cbecfce5cf7f321f1dd28a Mon Sep 17 00:00:00 2001
From: Hermann Schwarting <hfs@gmx.de>
Date: Wed, 3 Jan 2024 17:36:30 +0100
Subject: [PATCH] PMTiles: invert y axis of tile coordinates

The y axis of XYZ tiles is oriented from north to south. When
enumerating tiles for a given bounding box, the y coordinates have to be
enumerated from north/top to south/bottom.
---
 .../mapwithai/backend/BoundingBoxMapWithAIDownloader.java       | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/BoundingBoxMapWithAIDownloader.java b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/BoundingBoxMapWithAIDownloader.java
index d43ab420..e1472b40 100644
--- a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/BoundingBoxMapWithAIDownloader.java
+++ b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/BoundingBoxMapWithAIDownloader.java
@@ -135,7 +135,7 @@ private static Stream<TileXYZ> tilesFromBBox(int zoom, Bounds bounds) {
             final var tile1 = tileFromLatLonZoom(left, bottom, zoom);
             final var tile2 = tileFromLatLonZoom(right, top, zoom);
             return IntStream.rangeClosed(tile1.x, tile2.x)
-                    .mapToObj(x -> IntStream.rangeClosed(tile1.y, tile2.y).mapToObj(y -> new TileXYZ(x, y, zoom)))
+                    .mapToObj(x -> IntStream.rangeClosed(tile2.y, tile1.y).mapToObj(y -> new TileXYZ(x, y, zoom)))
                     .flatMap(stream -> stream);
         }