Adding "unknown stair" marker for tiles.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3420 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 9 insertions, 0 deletions

diff --git a/crawl-ref/source/tile2.cc b/crawl-ref/source/tile2.cc
index 46977c7a68..2228dccd1e 100644
--- a/crawl-ref/source/tile2.cc
+++ b/crawl-ref/source/tile2.cc
@@ -773,6 +773,15 @@ void tcache_compose_normal(int ix, int *fg, int *bg)
         status_shift += 5;
     }
 
+    // Don't let the "new stair" icon cover up any existing icons, but
+    // draw it otherwise.
+    if (bg0 & TILE_FLAG_NEW_STAIR && status_shift == 0)
+    {
+        tcache_overlay(tc_img, ix, TILE_NEW_STAIR,
+            TREGION_0_NORMAL, &c, NULL);
+    }
+
+
     if (bg0 & TILE_FLAG_UNSEEN)
     {
         tcache_overlay(tc_img, ix, TILE_MESH, TREGION_0_NORMAL, &c, NULL);