Keep travel cache up-to-date for current level everywhere.

Previously, it wasn't for non-dungeon levels, leading to
various strangenesses like exclusions in Pan not surviving
save+reload or viewing other levels, or presumably any
level excursions caused e.g. by piety changes.

Now the current level's LevelInfo is updated unconditionally,
but not written to disk when taking stairs. The travel cache
save/restore code writes out all levels in the cache, but
complains if it reads back info about non-current non-dungeon
levels.

Fixes issue #1519.

1 files changed, 2 insertions, 5 deletions

diff --git a/crawl-ref/source/exclude.cc b/crawl-ref/source/exclude.cc
index e5a3044594..d38ded17b3 100644
--- a/crawl-ref/source/exclude.cc
+++ b/crawl-ref/source/exclude.cc
@@ -378,11 +378,8 @@ static void _tile_exclude_gmap_update(const coord_def &p)
 
 static void _exclude_update()
 {
-    if (can_travel_interlevel())
-    {
-        LevelInfo &li = travel_cache.get_level_info(level_id::current());
-        li.update();
-    }
+    LevelInfo &li = travel_cache.get_level_info(level_id::current());
+    li.update();
     set_level_exclusion_annotation(curr_excludes.get_exclusion_desc());
 }