In this command block you'll type '/clear Allow' (this will take said block away from any online players)Īnd voila! You just check the second command block's previous output (make sure they're set to display previous output) to see who was last online! You'll have to this as soon as you log in, or it will clear the last check and will display your name. you type '/give Allow' (this will give everyone online a block called 'Allow' unobtainable in creative or survival.Ĭommand block two you make a conditional chain command block leading out (see the arrows on the command blocks) of the previous one. (you make the timer using 2 hoppers and some pistons with a redstone block underneath, see hopper timersĬommand block one you make a regular command block, with the redstone from the hopper timer leading in. You'll need to set up two command blocks, on a loaded timer in a loaded chunk. This solution isn't perfect for finding out who was online at a Specific time but will work to know who was last online.

Only people online will appear, you can use Universal Minecraft Editor if you send a world to the Mac, but I will not go over how to do that as that is rather complicated and I am not sure how to look through someone's tags.

Don't fret! Other players will not be able to pull up the GUI you used to make this system, and they cannot break the block either.

Only people online will appear, however once they rejoin the game will still remember, so it will be permanently attached to them.

Everyone will appear, so your kids and you included.

Of course not everyone who enters the area is nefarious, so make sure to put it somewhere it is obvious you are not allowed to go.

This will be permanently attached to them unless you were to manually remove it. Now you can always type this in the chat window: /testfor anyone who entered the area who is online will appear in chat. Then on the left there will be a select bar that says 'Needs Redstone'.

Place the command block a few blocks below the chest and put this command into the input field: tag add sus

Then you can put a bait chest down, maybe put diamond or something in it. Now type this: /gamerule commandblockoutput false Type this in the chat while in-game on any opped account: /give repeating_command_block Assuming you're okay with using command blocks you can kinda set up a trap like this:

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