Minecraft – How to make a command block chain

minecraft-commandsminecraft-java-edition

I'm trying to make a chain of command blocks that would change a player's gamemode and then teleport them somewhere from the press of 1 button. I tried connecting them with redstone and also tried using a repeater and nothing has worked. Any suggestions?

Best Answer

1.9+ Answer

For your first command, place an impulse command block. Then, for all subsequent commands, use a chain block on 'always active'.

1.8 and below answer

This is possible with the use of repeaters.

Simply string your command blocks together like so:

How to string together command blocks

This will execute the commands left to right with a 4 tick delay between each when the button is pressed.

The delay on the repeaters can be changed or more repeaters can be added to make the delay between executions quicker or slower.

Related Solutions

Minecraft – How to make a command block output a negative signal

One way to do this is to have a second command block testing if the previous one failed:

The impulse command block would have your current command (/testfor @e[type=Zombie]).

The chain command block, which is the one you should run comparators/conditionals off of, would then have:

/testforblock X Y Z command_block -1 {SuccessCount:0}

X Y Z should be the coordinates of the impulse command block.

This makes the chain block succeed when the impulse block fails.

Minecraft – I need help with a command block chain

Since a redstone timer method is allowed, here's my solution.

More information:

The lever is the input. Replace it with your diamond block detector.
The redstone lamp is the output. Replace it with your command block.
All the repeaters are set to 4 ticks, apart from the one closest to the redstone lamp, which is set to 1 tick. This is required for the correct duration of 1.5 seconds.
The piston is sticky.
You can put any (moveable) block on top of it, it does not have to be stone.
The screenshot is from Minecraft 1.11.2 PC/Linux (vanilla), although Pocket Edition should work exactly the same for this task.

It's probably possible to get the redstone much more compact than this, but I'm not too good at that.

EDIT: Spent about an hour compacting and writing instructions to re-create this 2x4x10 design:

It's 2 blocks wide, but you'll need to leave a space in between if you want to tile these. I'm not going to keep trying for a tileable version with no gap, but I'm sure it's possible.