add initial support for dfcavern saplings

depends.txt

@@ -9,3 +9,4 @@ flowers?
 dye?
 ferns?
 dryplants?
+df_trees?

mod.conf

@@ -1,4 +1,4 @@
 name = bonemeal
 depends = default
-optional_depends = intllib, lucky_block, farming, ethereal, moretrees, technic_worldgen, flowers, dye, ferns, dryplants
+optional_depends = intllib, lucky_block, farming, ethereal, moretrees, technic_worldgen, flowers, dye, ferns, dryplants, df_trees
 description = Adds bone and bonemeal giving the ability to quickly grow plants and saplings.

mods.lua

@@ -190,3 +190,21 @@ if minetest.get_modpath("dye") then
 		})
 	end
 end
+
+
+if minetest.get_modpath("df_trees") then
+
+	local function spore_tree_fix(pos)
+		minetest.set_node(pos, {name = "air"})
+		df_trees.spawn_spore_tree(pos)
+	end
+
+	bonemeal:add_sapling({
+		{"df_trees:black_cap_sapling", df_trees.spawn_black_cap, "soil"},
+		{"df_trees:fungiwood_sapling", df_trees.spawn_fungiwood, "soil"},
+		{"df_trees:goblin_cap_sapling", df_trees.spawn_goblin_cap, "soil"},
+		{"df_trees:spore_tree_sapling", spore_tree_fix, "soil"},
+		{"df_trees:tower_cap_sapling", df_trees.spawn_tower_cap, "soil"},
+		{"df_trees:tunnel_tube_sapling", df_trees.spawn_tunnel_tube, "soil"}
+	})
+end