Made wood blocks and slabs respect facedir, so we can control which way the

wood grain goes.

mods/default/init.lua

@@ -1046,6 +1046,7 @@ minetest.register_node("default:wood", {
 	is_ground_content = true,
 	groups = {snappy=1,choppy=2,oddly_breakable_by_hand=2,flammable=3,wood=1},
 	sounds = default.node_sound_wood_defaults(),
+	paramtype2 = "facedir"
 })
 
 minetest.register_node("default:cloud", {

mods/stairs/init.lua

@@ -87,6 +87,7 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 		drawtype = "nodebox",
 		tiles = images,
 		paramtype = "light",
+		paramtype2 = "facedir",
 		is_ground_content = true,
 		groups = groups,
 		sounds = sounds,
@@ -183,6 +184,7 @@ function stairs.register_slab(subname, recipeitem, groups, images, description,
 		drawtype = "nodebox",
 		tiles = images,
 		paramtype = "light",
+		paramtype2 = "facedir",
 		is_ground_content = true,
 		groups = groups,
 		sounds = sounds,