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, 10 insertions, 4 deletions

diff --git a/crawl-ref/source/mapdef.cc b/crawl-ref/source/mapdef.cc
index 57302d789f..9954147c62 100644
--- a/crawl-ref/source/mapdef.cc
+++ b/crawl-ref/source/mapdef.cc
@@ -1184,10 +1184,10 @@ dlua_set_map::~dlua_set_map()
 
 map_def::map_def()
     : name(), tags(), place(), depths(), orient(), chance(), weight(),
-      welcome_messages(), map(), mons(), items(), keyspecs(),
-      prelude("dlprelude"), main("dlmain"), validate("dlvalidate"),
-      veto("dlveto"), rock_colour(BLACK), floor_colour(BLACK),
-      index_only(false), cache_offset(0L)
+      weight_depth_mult(), weight_depth_div(), welcome_messages(), map(),
+      mons(), items(), keyspecs(), prelude("dlprelude"), main("dlmain"),
+      validate("dlvalidate"), veto("dlveto"), rock_colour(BLACK),
+      floor_colour(BLACK), index_only(false), cache_offset(0L)
 {
     init();
 }
@@ -1239,6 +1239,12 @@ void map_def::reinit()
     // eligible vaults).
     weight = 10;
 
+    // How to modify weight based on absolte dungeon depth.  This
+    // needs to be done in the C++ code since the map's lua code doesnt'
+    // get called again each time the depth changes.
+    weight_depth_mult = 0;
+    weight_depth_div  = 1;
+
     // Clearing the map also zaps map transforms.
     map.clear();
     mons.clear();