From 1286a585118fd1a8d261ade72dc533e73fb4b8dd Mon Sep 17 00:00:00 2001
From: Gwilym Kuiper <gw@ilym.me>
Date: Sun, 23 Jan 2022 19:39:08 +0000
Subject: [PATCH] Ensure that we don't copy twice

---
 agb/src/display/background.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/agb/src/display/background.rs b/agb/src/display/background.rs
index 287733d..96dcc8a 100644
--- a/agb/src/display/background.rs
+++ b/agb/src/display/background.rs
@@ -170,6 +170,9 @@ impl<'a> VRamManager<'a> {
             TILE_BACKGROUND.set(index_to_copy_into * tile_size_in_words + i, word);
         }
 
+        self.tile_set_to_vram
+            .insert((tile_set_ref.id, tile), index_to_copy_into as u16);
+
         TileIndex(index_to_copy_into as u16)
     }