Implemented facedir in the nyan cat rainbow

mods/default/mapgen.lua

@@ -371,7 +371,7 @@ function default.make_nyancat(pos, facedir, length)
 	for i=1,length do
 		p.x = p.x + tailvec.x
 		p.z = p.z + tailvec.z
-		minetest.set_node(p, {name="default:nyancat_rainbow"})
+		minetest.set_node(p, {name="default:nyancat_rainbow", param2=facedir})
 	end
 end
 

mods/default/nodes.lua

@@ -1332,7 +1332,9 @@ minetest.register_node("default:nyancat", {
 
 minetest.register_node("default:nyancat_rainbow", {
 	description = "Nyan Cat Rainbow",
-	tiles = {"default_nc_rb.png"},
+	tiles = {"default_nc_rb.png^[transformR90", "default_nc_rb.png^[transformR90",
+		"default_nc_rb.png", "default_nc_rb.png"},
+	paramtype2 = "facedir",
 	groups = {cracky=2},
 	sounds = default.node_sound_defaults(),
 })