Start of moving special room definitions (monster lairs and monster pits)

to lua.  As of now all special rooms are filled with rats.

Introduces two new members to map_def, weight_depth_mult and weight_depth_div,
which change a map's weight based on the absolute dungeon depth (not yet
accesible via lua or vault definitions).  This needs to be done in C++
rather than in lua since a map's lua isn't re-invoked every time a random
map is chosen, but only when the map is placed.

NOTE: When I first made this change crawl started crashing until I manually
forced the recompilation of util/levcomp.lex.o and util/levcomp.tab.o;
if crawl starts crashing after this change, try doing that.


git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@7629 c06c8d41-db1a-0410-9941-cceddc491573

1 files changed, 19 insertions, 0 deletions

diff --git a/crawl-ref/source/dat/rooms.des b/crawl-ref/source/dat/rooms.des
new file mode 100644
index 0000000000..960426f671
--- /dev/null
+++ b/crawl-ref/source/dat/rooms.des
@@ -0,0 +1,19 @@
+NAME: special_room_test
+TAGS: special_room allow_dup
+
+{{
+    local level, tl_x, tl_y, br_x, br_y = dgn.get_special_room_info()
+
+    -- Return early if we're being called during map validation.
+    if not level then
+        return
+    end
+
+    for x = tl_x, br_x do
+        for y = tl_y, br_y do
+            dgn.create_monster(x, y, "rat")
+        end
+    end
+}}
+MAP
+ENDMAP