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-rw-r--r--crawl-ref/source/dungeon.cc6
1 files changed, 5 insertions, 1 deletions
diff --git a/crawl-ref/source/dungeon.cc b/crawl-ref/source/dungeon.cc
index 7a124183fe..6d9b57dc90 100644
--- a/crawl-ref/source/dungeon.cc
+++ b/crawl-ref/source/dungeon.cc
@@ -3991,9 +3991,13 @@ static bool build_vaults(int level_number, int force_vault, int rune_subst,
stair_exist[sty] = 0;
}
+ // Don't create any new up stairs on dungeon level 1.
+ bool no_up_stairs = player_branch_depth() == 1 &&
+ you.level_type == LEVEL_DUNGEON;
+
for (int j = 0; j < (coinflip()? 4 : 3); j++)
{
- for (int i = 0; i < 2; i++)
+ for (int i = 0; i < (no_up_stairs ? 1 : 2); i++)
{
const dungeon_feature_type stair =
static_cast<dungeon_feature_type>(