Added on_spawn example

rat.lua

@@ -57,7 +57,18 @@ mobs:register_mob("mobs_animal:rat", {
 ]]
 })
 
-mobs:register_spawn("mobs_animal:rat", {"default:stone"}, 20, 5, 15000, 2, 0)
+--mobs:register_spawn("mobs_animal:rat", {"default:stone"}, 20, 5, 15000, 2, 0)
+
+local function rat_spawn(self, pos)
+	print (self:get_luaentity().name, pos.x, pos.y, pos.z)
+end
+
+mobs:spawn({
+	name = "mobs_animal:rat",
+	nodes = {"default:stone"},
+	max_height = 0,
+--	on_spawn = rat_spawn,
+})
 
 mobs:register_egg("mobs_animal:rat", S("Rat"), "mobs_rat_inventory.png", 0)