Minecraft Forums

Well, I did this to cleanup my server I run for my kids.

I ended up using MCEdit to find bats...in 2 caves
so many that the server would LAG (maybe 100+ in each cave?)...so I used this to remove all bats.

Then I expanded it to be able to be used for any mob. You can even use this to help you build a blaze spawner. I know when I did one legitimately, WITHOUT using peaceful, I used 12 fire resistance, 4 strength, and 6 health potions.

Using this, every 5 seconds all the blazes in the local area would be removed from the game helping you out a bit by reducing the challenge.

This can also be used in place of going to peaceful. It would behave the same, except you can be SELECTIVE about what you remove from the game.

For instance, if you were building a Zombie Pigman Gold farm, you might need to keep the Ghasts away for a while. This can do that.

Or, if you happen to have done something like I did - create a Blaze Farm based on Mumbo Jumbo's design:

After 15 minutes I had so many BLAZE I needed to kill, I had to clear them out using peaceful. If I had this, I would have only had to move the Blaze spawn Egg into slot 2 or 3.

Player Needs to put a spawnegg of the type of mob to eliminate in
the hotbar in slot 2 or 3 or both
MCPE uses a 0 base for the hot bar, so you want to hold the eggs in
the 3rd and 4th slots from the left
this means, numbers 2 and 3 in the below picture:

+-+-+-+-+-+-+-+
|0|1|2|3|4|5|6|
+-+-+-+-+-+-+-+
^ ^

| |

Place Eggs in these two slots. Why these two? Well, typically I hold a sword and pickaxe in slots 0 and 1. Slots 2+ vary depending on what I am doing and since the new versions of Minecraft have adaptable width hotbars, I did not want to assume that everyone has the same number of slots that I do.

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// Revision History
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// v1.0 - 2015DEC16 Initial Public Release
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// v1.1 - 2015DEC17 Slowed egg drop speed, which was corrupting memory space
// - added new commands /c to clear inventory and /s which was short for the give eggs
// - added a catch to ensure only 1 set of spawnegg drops happens at a time
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https://goo.gl/G5qk75