From 6845f79a5ed4314c86878d013ec3bb11af92483d Mon Sep 17 00:00:00 2001
From: Robert Vollmert <rvollmert@gmx.net>
Date: Sat, 17 Oct 2009 10:02:54 +0200
Subject: Unify check for unknown staircases in is_unknown_staircase.

---
 crawl-ref/source/travel.cc | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'crawl-ref/source/travel.cc')

diff --git a/crawl-ref/source/travel.cc b/crawl-ref/source/travel.cc
index 60bd9e5627..76b73924c7 100644
--- a/crawl-ref/source/travel.cc
+++ b/crawl-ref/source/travel.cc
@@ -226,6 +226,13 @@ inline bool is_player_altar(const coord_def &c)
     return feat_is_player_altar(grd(c));
 }
 
+bool is_unknown_stair(const coord_def &p, dungeon_feature_type remembered_feat)
+{
+    dungeon_feature_type feat = (remembered_feat == NUM_REAL_FEATURES)
+                                    ? env.grid(p) : feat;
+    return (feat_is_travelable_stair(feat) && !travel_cache.know_stair(p));
+}
+
 #ifdef CLUA_BINDINGS
 static void _init_traps()
 {
-- 
cgit v1.2.3-54-g00ecf