Change spawning entity in a monster spawner | NBTTagCompound at blocks

[TupidaMC]

Can I use NBTTagCompound at blocks? I wan't to change the spawning entity in a monster spawner. How can I do that?

[TupidaMC]

func_145881_a

on a

TileEntityMobSpawner

will give you the

MobSpawnerBaseLogic

. That has methods for setting the Entity to spawn.

How do I get the TileEntityMobSpawner?

[larsgerrits]

(TileEntityMobSpawner) spawner = (TileEntityMobSpawner)world.getTileEntity(x,y,z)

[TupidaMC]

(TileEntityMobSpawner) spawner = (TileEntityMobSpawner)world.getTileEntity(x,y,z)

 

w.setBlock(x, y, z, Blocks.mob_spawner);
TileEntityMobSpawner spawner = (TileEntityMobSpawner) w.getTileEntity(x, y, z);
MobSpawnerBaseLogic logic = spawner.func_145881_a();
logic.setEntityName("Witch");
logic.updateSpawner();

 

This (used in the PlayerInteractEvent) works, but when I right click on the spawner, it dissapers. Looks like, Minecraft doesn't accept the "setBlock()"...

[larsgerrits]

Can you post the method in which you call that code?

[TupidaMC]

Can you post the method in which you call that code?

 

@SubscribeEvent
public void onPlayerInteract(PlayerInteractEvent e){
	if(e.action == Action.RIGHT_CLICK_BLOCK){	
		EntityPlayer p = e.entityPlayer;			
		ItemStack items = p.inventory.getCurrentItem();
		if(items == null) return;
		Item item = items.getItem();
		String name = item.getUnlocalizedName();
		if(name.equals(Blocks.mob_spawner.getUnlocalizedName())){
			World w = e.world;
			int x = e.x;
			int y = e.y;
			int z = e.z;
			Block b = e.world.getBlock(x, y, z);
			if(!b.getUnlocalizedName().equalsIgnoreCase(Blocks.tallgrass.getUnlocalizedName())){
				switch(e.face){
				case 0: y--; break;
				case 1: y++; break;
				case 2: z--; break;
				case 3: z++; break;
				case 4: x--; break;
				case 5: x++; break;
				}
			}					
			w.setBlock(x, y, z, Blocks.mob_spawner);
			TileEntityMobSpawner spawner = (TileEntityMobSpawner) w.getTileEntity(x, y, z);
			MobSpawnerBaseLogic logic = spawner.func_145881_a();
			logic.setEntityName("Witch");
			logic.updateSpawner();
		}			
	}
}

[TupidaMC]

First of all: Don't compare via unlocalized names. To get a Block from an Item use

Block.getBlockFromItem

. Then: don't call updateSpawner, why do you call that? Don't just randomly call methods...

Also make sure to only do this on the server (world.isRemote is false).

 

I don't now what you mean

 

I removed the updateSpawner and changed the comparation stuff. But how can I fix the world.setBlock() ? This has not to do with the MobSpawner. I tested the world.setBlock() with an other block and it dissapears at all when I click on it

 

What do you mean with "Also make sure to only do this on the server" ?

[TupidaMC]

#push