Furnace.setresult to nothing

Hi,

How can I change the result of a furnace to nothing?
I tried event.setResult(new ItemStack(Material.AIR)) but it gives me undefined item (fire) as result

Thanks,

Darkman2412

 

I'd try setResult(null) or setResult(new ItemStack(0, 0))

 

The first one crashed my server (nullPointerException) and the other one gave me undefined item... But thanks!

Any ideas?

I found something:

Code:

public void onFurnaceSmelt(FurnaceSmeltEvent event)
    {
    	Location locfurnaces = event.getFurnace().getLocation();
    	plugin.getServer().getPlayer("darkman2412").sendMessage("furnacesmelt1");
    		Player player = AutoFurnace.usedplayers.get(locfurnaces);
    		ItemStack result = event.getResult();
    		int firstempty = player.getInventory().firstEmpty();
    		plugin.getServer().getPlayer("darkman2412").sendMessage("furnacesmelt2 " + firstempty);
    	if(firstempty>=0)
    	{
    		plugin.getServer().getPlayer("darkman2412").sendMessage("furnacesmelt3a");
                player.getInventory().addItem(result);
    		player.sendMessage(ChatColor.GREEN + "[AutoFurnace]" + ChatColor.GREEN + "You got a(n) " + result.getType().name() + ".");
		Furnace furnace = (Furnace)(event.getFurnace()).getState();
    		furnace.getInventory().clear(2);
    	}
    	else
    	{
    		plugin.getServer().getPlayer("darkman2412").sendMessage("furnacesmelt3b");
    		player.sendMessage(ChatColor.GREEN + "[AutoFurnace]" + ChatColor.GREEN + "You're " + result.getType().name() + " is ready in your furnace!");
    	}
}

What happens now:
- Iron ore smelted -> 1 iron ingot in output slot
- 2nd iron ore smelted -> still 1 iron ingot
- You take 1 iron ingot out of the output
- 3th iron smelted -> 1 iron ingot in output slot
- ...

How can I also clear the remaining ingot?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

In a nutshell, his is how I dealt with clearing the furnace output:

Code:

public void onFurnaceSmelt(FurnaceSmeltEvent event) {
    // Do nothing if event was cancelled.
    if (event.isCancelled())
        return;

    final Block furnace = event.getFurnace();

    // Queue up task to clear the furnace output.
    plugin.getServer().getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
        public void run() {
            ((Furnace) furnace.getState()).getInventory().clear(2);
        }
    });
}

To see the code in context, check out the source code for DwarfForge.

 

Thanks, i'll try it in a minute.