New Lua library: feat.

Provides wrappers for all of the feat_is_XXX functions from terrain.cc,
as well as a few other functions. Also provides a macro which can wrap a
function to take:

  * a set of co-ordinates (parsed with grd(coord_def(x, y)))
  * a string (parsed with dungeon_feature_by_name)
  * an integer (cast into dungeon_feature_type, can be fetched from
  	dgn.grid(x, y))

All of the feat library functions can be used in this manner. For
example:

  * feat.is_wall(x, y)
  * feat.is_wall(dgn.grid(x, y))
  * feat.is_wall(7)
  * feat.is_wall("rock_wall")

1 files changed, 2 insertions, 13 deletions

diff --git a/crawl-ref/source/l_dgngrd.cc b/crawl-ref/source/l_dgngrd.cc
index d72dab589c..c5e89b175f 100644
--- a/crawl-ref/source/l_dgngrd.cc
+++ b/crawl-ref/source/l_dgngrd.cc
@@ -160,10 +160,6 @@ static int dgn_grid(lua_State *ls)
     PLUARET(number, grd(c));
 }
 
-// XXX: these two shouldn't be so different.
-LUARET1(_dgn_is_wall, boolean,
-        feat_is_wall(static_cast<dungeon_feature_type>(luaL_checkint(ls, 1))))
-
 LUAFN(dgn_distance)
 {
     COORDS(p1, 1, 2);
@@ -172,13 +168,6 @@ LUAFN(dgn_distance)
     return (1);
 }
 
-LUAFN(_dgn_is_opaque)
-{
-    COORDS(c, 1, 2);
-    lua_pushboolean(ls, feat_is_opaque(grd(c)));
-    return (1);
-}
-
 LUAFN(dgn_seen_replace_feat)
 {
     dungeon_feature_type f1 = _get_lua_feature(ls, 1);
@@ -200,11 +189,11 @@ const struct luaL_reg dgn_grid_dlib[] =
 { "seen_replace_feat", dgn_seen_replace_feat },
 
 { "grid", dgn_grid },
-{ "is_opaque", _dgn_is_opaque },
-{ "is_wall", _dgn_is_wall },
 { "max_bounds", dgn_max_bounds },
 { "in_bounds", dgn_in_bounds },
 { "distance", dgn_distance },
 
+
+
 { NULL, NULL }
 };