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Safety Regarding Repeating Command Blocks

Players often find the command block very useful, but they can also render the game unplayable.

Here are some examples of world destroying repeating command blocks:

This command summons a pig at the location of every pig in the world. This will make the game slow down exponentially every tick. I once ran a command like this in my friends realm and it took forever to fix. 

 

This command will teleport all players twenty blocks above the command block causing every one in the world to be stuck in one spot, forever...

 

Imagine trying to fix this after the command block moved you hundreds of blocks away.

 

 

This command will constantly kill all players online. Every time you press respawn you die. There is no way to fix this one in the game which makes this the worst way to die in Minecraft.

There are many ways we can get around this problem. First we can make a gamerule for disabling all command blocks and functions. There can also be a button in the death menu which can make the player respawn with command blocks and functions disabled. This will give the player enough time to fix the problem. When the problem is fixed the player can re-enable commands by using the gamerule mentioned earlier.

I am sure this will fix a lot of problems for players including me. I'm sure all of us have made some of these mistakes at one time. I even made them when making the screen shots for this article and I didn't even bother to fix them.

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  • 0
    Registered User commented
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    /gamerule EnableCommands true

    You do not have permission to execute this command.

    Hmmm...

  • 0
    Registered User commented
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    William Miller this is assuming whoever is in the world has permission to execute the command you mentioned, since to get a repeating command block you would need access to the "/give" command.

  • 0
    Registered User commented
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    I think that instead there should be a combination of keys that you can press in order to kill all command blocks.  That would solve this problem.

  • 1
    Registered User commented
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    I like the idea of a command block kill command. Asking Mojang to think of every possible combination of commands that can destroy a world is a bit unreasonable, but if there was a way to stop the damage after it starts that would be very good.

    Of course, we'd need more than a "Command Block Kill Command". The problem is that commands cannot be entered on the respawn screen (I tried) so if someone actually tried putting in the oder to kill everyone on a repeating command block there would be no way for the admin to stop it unless Mojang added a way to do so.

    Even without malice, there are plenty of situations where we would need the ability to destroy or at least deactivate all command blocks in the world.