Added dummy vault to prevent too much repetition of the early-game vaults (we

only have one early-game vault).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@998 c06c8d41-db1a-0410-9941-cceddc491573

2 files changed, 24 insertions, 0 deletions

diff --git a/crawl-ref/source/dat/vaults.des b/crawl-ref/source/dat/vaults.des
index 1e8320f963..dec39d1a79 100644
--- a/crawl-ref/source/dat/vaults.des
+++ b/crawl-ref/source/dat/vaults.des
@@ -4425,6 +4425,27 @@ ENDMAP
 # Regular vaults
 ##############################################################################
 
+##############################################################################
+# Dummy probability balancer vault for depths 1-11.
+#
+# Why this is necessary: there are very few vaults in the 1-11 range (entries
+# are not considered here); to avoid too much repetition of the existing vaults,
+# we use this dummy vault. 
+
+NAME: dummy_balancer
+
+DEPTH: 1-11
+# Vaults tagged "dummy" are no-ops when the dungeon builder is looking for maps
+# by depth.
+TAGS: dummy
+
+ORIENT: float
+CHANCE: 80
+
+MAP
+x
+ENDMAP
+
 ###################################
 # Hellmouth (Lemuel)
 # note that other than the imps, the demons here cannot fly
diff --git a/crawl-ref/source/maps.cc b/crawl-ref/source/maps.cc
index f4e0033b2e..d76b8c4268 100644
--- a/crawl-ref/source/maps.cc
+++ b/crawl-ref/source/maps.cc
@@ -318,6 +318,9 @@ int random_map_for_depth(int depth, bool want_minivault)
                 mapindex = i;
         }
 
+    if (mapindex != -1 && vdefs[mapindex].has_tag("dummy"))
+        mapindex = -1;
+
     return (mapindex);
 }