Allow portal vaults to specify fill and border glyph.

Also move dungeon_feature_by_name into terrain.cc, as it does not make
sense it being in l_dgngrd.cc.

The Lua function "set_border_fill_type(feature)" will replace the
default DNGN_ROCK_WALL fill of a portal vault with the specified
feature. This could be abused, and should probably only be limited to
floor, water and sea, different types of walls, trees and lava; there
are no sanity checks for endless traps, statues, stairs, etc.

Finally, apply this to the island Trove, giving endless water effect.

1 files changed, 16 insertions, 0 deletions

diff --git a/crawl-ref/source/l_dgn.cc b/crawl-ref/source/l_dgn.cc
index 86fee24781..39a12b9051 100644
--- a/crawl-ref/source/l_dgn.cc
+++ b/crawl-ref/source/l_dgn.cc
@@ -896,6 +896,21 @@ static int lua_dgn_set_lt_callback(lua_State *ls)
     return (0);
 }
 
+static int lua_dgn_set_border_fill_type (lua_State *ls)
+{
+    MAP(ls, 1, map);
+    if (lua_gettop(ls) != 2)
+        luaL_error(ls, "set_border_fill_type requires a feature.");
+
+    dungeon_feature_type fill_type = 
+        dungeon_feature_by_name(luaL_checkstring(ls, 2));
+
+    if (fill_type != DNGN_UNSEEN)
+        map->border_fill_type = fill_type;
+
+    return (0);
+}
+
 static int dgn_fixup_stairs(lua_State *ls)
 {
     const dungeon_feature_type up_feat =
@@ -1612,6 +1627,7 @@ const struct luaL_reg dgn_dlib[] =
 { "change_floor_colour", dgn_change_floor_colour },
 { "change_rock_colour",  dgn_change_rock_colour },
 { "set_lt_callback", lua_dgn_set_lt_callback },
+{ "set_border_fill_type", lua_dgn_set_border_fill_type },
 { "fixup_stairs", dgn_fixup_stairs },
 { "floor_halo", dgn_floor_halo },
 { "random_walk", dgn_random_walk },