[MC-87171] Command Block Order of Operations

I made a small Chain of Command blocks, (I will call this a Program for now).
When I run this program in the layout I built it in, it works. When I try to bend the chain to save space, keeping everything in order, it no longer works and starts looping one of the summon commands. I cannot figure out why. I am attaching photos of the layout of the program, the one that is a straight line is the initial build.
Photos 1-4 are a comparison of the output of running the program in the two configurations.

The Text files are the commands that make up the program in order, and the output of the configurations.

Linked issues

duplicates 1

MC-86827 Conditional Chain Command Blocks must be in straight line Resolved

Attachments

Non-Working Program.txt

Program Commands.txt

Working program.txt

Comments 15

John Dame 2015-08-24T11:26:19Z

If you want to recreate this I can explain how to use the command block program. Or you can test with your own command block program, up to you.

John Dame 2015-08-24T11:29:57Z

I had also tested this using /say 1, /say 2, etc, in place of all the commands, and it worked as I thought it should. I could move the command blocks orientation with the same order and it would output the proper sequence.
I Had this problem on other creations of mine that I built in a straight line then tried to bend into a smaller design, again keeping the command blocks in order.

Christie N 2015-08-24T13:47:35Z

You have commands that rely on certain command blocks being in specific positions.

[Mod] redstonehelper 2015-08-24T13:50:44Z

Does fixing the issue Carl Nathans pointed out fix your problem?

John Dame 2015-08-24T14:01:36Z

No it does not, Those blocks are in place each time I ran the program.

5 more comments

[Mod] redstonehelper 2015-08-24T14:05:28Z

Then you're going to have to narrow the issue down - I doubt Mojang or the moderators have the time to figure out what's wrong with how the different command block locations affect your program.

John Dame 2015-08-24T14:09:56Z

It is not just this build either other builds that I have made have the same issue. When I try to change their shape after finishing the program, they stop working correctly.

John Dame 2015-08-24T14:30:05Z

I have discovered the issue, The spots, On all the builds, where I bend the chain are Conditional command blocks, and the command block pointing up does not register the previous block as meeting the condition when it does.

The current screenshots shows the problem. The chat in the background shows the output of the two configurations, The first one shows the output of 0, 1 the third block is set to conditional, the second one shows the output of 0, 1, 2, and is unconditional.

[Mod] redstonehelper 2015-08-24T14:40:15Z

Closing as invalid then - conditions come from behind the command block, they are not directly related to chaining and order of execution.

John Dame 2015-08-24T15:03:19Z

I still feel that this is a bug, It would be illogical for it to not accept the conditional input from any side, as all other command blocks work that way with non-conditional input. This is a bug that breaks the way command blocks chain together.

[Mod] redstonehelper 2015-08-24T15:06:33Z

Alright, reopened. Let's have a dev look at.

John Dame 2015-08-24T15:14:32Z

Thanks.

CubeTheThird 2015-08-24T15:14:37Z

The condition checking isn't input being passed from 1 command block as input to another. Every command block (regardless of type) performs a check behind it (when conditional). If there is a command block behind it, and that block failed to execute at its previous execution, the current one will not execute.

John Dame 2015-08-24T15:20:34Z

Shouldn't it be checking the input from the block pointing into it? Not the one sitting behind it, which can be pointing in any direction. Doesn't make sense to me. Not that I am complaining, if this is the way the Devs say this works after seeing this, then that is how it works. I'll work with it.

CubeTheThird 2015-08-24T16:41:28Z

One way I'd look at it is, multiple command blocks could be executing based on the success of a single block, since the back faces could all be against a single one.