Hello everyone,

Today, I will be providing you with an explanation on the process of making scramble generators in Scratch.

As a Rubik's Cube fan, this was the first idea I came up with. I decided to start with a 2x2 generator as this would probably be easiest.
Here is the explanation:






There are two lists: the possible axis and the variants. The 3 axis are F, U and R. The 3 variants are are normal - 90* ( ), prime - -90* (') and 2 - 180* (2). I named them 1, 2, or 3.

Then the code put together a (possible) move out of the 2 lists. The first move gets automatically added, but the others are only added if they are valid or not.
Valid means if 2 possible moves next to each other can not be done by a simpler move and the 2 moves next to each other are different.

This loop is defined under a block and the block runs until the list of moves is 12. Once there is a scramble, it needs to be displayed. Before, what i did was i made a stupidly long block of “Item x of scramble” attached to a join block which has a space bar. This can be hugely simplified, though.

In the make a move loop, there is already a set output to join move and space key. This works, but is annoyingly puts a space key at the start of the output.

So to fix this, I made it so that it only does this if the output is not blank. Else, there is a join block joining the output, scramble deg. list and the scramble axis list. Now the output is clear and there is a fully generated 2x2 solve when you click the green flag.

I have also made 3x3 and 4x4 versions, which you can find on my profile.

Thanks for reading this. I hope this has given you a better understanding.

The link to the original project:
https://scratch.mit.edu/projects/1207249135/

Thanks for reading, feel free to ask any questions.

Would it be possible to do this with different cubes eg Pyraminx and megaminxes. Would you create more lists.

no, change the items in the list. Yes it is possible!

I can do it for you!

MarcusScratcher1217 wrote:

I can do it for you!

Yes, you could remix! Make sure to credit me. You can have a look on my profile and it is one of my earliest projects.
Thank you!