Fix labyrinths being seen in overview even after they're visited.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@546 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 12 insertions, 0 deletions

diff --git a/crawl-ref/source/overmap.cc b/crawl-ref/source/overmap.cc
index e3cb754526..d83f87cbb1 100644
--- a/crawl-ref/source/overmap.cc
+++ b/crawl-ref/source/overmap.cc
@@ -282,6 +282,18 @@ std::string overview_description_string()
     return disp;
 }
 
+void unnotice_labyrinth_portal()
+{
+    level_pos curpos(level_id::get_current_level_id());
+    // XXX Is there really no better way to do this?
+    curpos.pos.x = you.x_pos;
+    curpos.pos.y = you.y_pos;
+    if ( portals_present.find(curpos) != portals_present.end() )
+        portals_present.erase(curpos);
+    else
+        mprf(MSGCH_DIAGNOSTICS, "Oops - tried to unnotice bad portal.");
+}
+
 void display_overmap()
 {
     std::string disp = overview_description_string();