Support spawning item stacks

Spigot-API-Patches/0179-Mob-Spawner-API-Enhancements.patch

@@ -5,10 +5,10 @@ Subject: [PATCH] Mob Spawner API Enhancements
 
 
 diff --git a/src/main/java/org/bukkit/block/CreatureSpawner.java b/src/main/java/org/bukkit/block/CreatureSpawner.java
-index cb447a4ad5a9dce7c98999a5d7fcd6111fc9b10e..35a599ebe9a35dc9570d546d73622da87cb136c4 100644
+index cb447a4ad5a9dce7c98999a5d7fcd6111fc9b10e..5bbae759ce39d42886994e500fd9454ec328f804 100644
 --- a/src/main/java/org/bukkit/block/CreatureSpawner.java
 +++ b/src/main/java/org/bukkit/block/CreatureSpawner.java
-@@ -199,4 +199,18 @@ public interface CreatureSpawner extends TileState {
+@@ -199,4 +199,30 @@ public interface CreatureSpawner extends TileState {
       * @see #getSpawnRange()
       */
      public void setSpawnRange(int spawnRange);
@@ -25,5 +25,17 @@ index cb447a4ad5a9dce7c98999a5d7fcd6111fc9b10e..35a599ebe9a35dc9570d546d73622da8
 +     * Resets the spawn delay timer within the min/max range
 +     */
 +    public void resetTimer();
++
++    /**
++     * Sets the {@link EntityType} to {@link EntityType#DROPPED_ITEM} and sets the data to the given
++     * {@link org.bukkit.inventory.ItemStack ItemStack}.
++     * <p>
++     * {@link #setSpawnCount(int)} does not dictate the amount of items in the stack spawned, but rather how many
++     * stacks should be spawned.
++     *
++     * @param itemStack The item to spawn. Must not {@link org.bukkit.Material#isAir be air}.
++     * @see #setSpawnedType(EntityType)
++     */
++    void setSpawnedItem(@NotNull org.bukkit.inventory.ItemStack itemStack);
 +    // Paper end
  }