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-rw-r--r--src/viewport.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/viewport.cpp b/src/viewport.cpp
index 8a1319072..da1e01feb 100644
--- a/src/viewport.cpp
+++ b/src/viewport.cpp
@@ -2183,7 +2183,9 @@ ViewportSignKdtreeItem ViewportSignKdtreeItem::MakeTown(TownID id)
item.id.town = id;
const Town *town = Town::Get(id);
- Point pt = RemapCoords2(TileX(town->xy) * TILE_SIZE, TileY(town->xy) * TILE_SIZE);
+ /* Avoid using RemapCoords2, it has dependency on the foundations status of the tile, and that can be unavailable during saveload, leading to crashes.
+ * Instead "fake" foundations by taking the highest Z coordinate of any corner of the tile. */
+ Point pt = RemapCoords(TileX(town->xy) * TILE_SIZE, TileY(town->xy) * TILE_SIZE, GetTileMaxZ(town->xy) * TILE_HEIGHT);
pt.y -= 24 * ZOOM_LVL_BASE;