tile_randomizer.px: Add underground forest tiles.

diff --git a/tile_randomizer.px b/tile_randomizer.px
index aa1fc73..541224c 100755 (executable)
--- a/tile_randomizer.px
+++ b/tile_randomizer.px
@@ -11,6 +11,12 @@ our $TileGroups =
   [1009, 1013, 1014], # forest stones fill
   [1011, 1015], # forest stones right
   [1017, 1018], # forest stones bottom
+  [1861, 1862], # forest underground gras
+  [1865, 1866], # forest underground stones top
+  [1868, 1872], # forest underground stones left
+  [1869, 1873, 1874], # forest underground stones fill
+  [1871, 1875], # forest underground stones right
+  [1877, 1879], # forest underground stones bottom
   [2058, 2060, 2061, 2065, 2066, 2070], # ice tiles
   [2179, 2180, 2181, 2187, 2188, 2189, 2195, 2196, 2197], # snow bg
   [2171, 2172, 2175, 2176] # those other snow thingies