Set spawner type

I don't think that this is possible, but there's kinda dirty way you could do that. Just use

Code (Text):

/setblock ~ ~ ~ mob_spawner 0 replace {EntityId:Creeper}

 

you have to set the NBT of the stack. See the MC wiki for the exact NBT structure.

 

http://minecraft.gamepedia.com/Player.dat_format#Block_Tags
http://minecraft.gamepedia.com/Chunk_format#Block_entity_format (see MobSpawner)

 

Try

Code (Text):

BlockState blockState = block.getState()
CreatureSpawner spawner = ((CreatureSpawner)blockState);
spawner.setSpawnedType(EntityType.BLAZE));
blockState.update();

 

itemstack.setDurability((short)data);

 

Try this:

Code (Text):

BlockState state = <spawnerblock>.getState();
TileEntityMobSpawner tile = ((CraftCreatureSpawner) state).getTileEntity();
MobSpawnerAbstract spawner = tile.getSpawner();
NBTTagCompound tag = new NBTTagCompound();
NBTTagCompound properties = new NBTTagCompound();
NBTTagCompound item = new NBTTagCompound();
item.setString("id", "diamond");
item.setInt("Count", 10);
properties.set("Item", item);
tag.set("Properties", properties);
MobSpawnerAbstract.a data = new MobSpawnerAbstract.a(tag, "Item");
spawner.a(data);
state.update();

 

What do you mean? You can't do this without updating it

 

It's somewhat similar.

• Get the NMS ItemStack
• Get the tag
• Get the block entity tag
• Set the data
• Set the tag
• Get the CraftBukkit stack
• Set the ItemStack in the inventory.

 

Look around in the Spigot source or in your IDE