How to generate always different random numbers?

I have a 6 random number generator. But no number can repeat itself.

I use font sprite object for each of them, and each one has an instance variable, starting with 1 to 6. I also have a global score variable that goes up and so each number ends before the next one, until the 6 numbers finish randomize. It doesn't generate all 6 at the same time, first it generates the first, then the second, up to the sixth number. How do I make sure that no numbers are the same? I'll send the capx here. This is a simplified version of a slightly larger project that ran into this problem. I'll post the link here of the larger project on the itch.io page, which I also intend to post here. The objective was to generate random numbers to bet on the mega-sena, but could not repeat the numbers. A user reminded me well, that the numbers are repeating themselves, and that cannot happen. How to solve? Maybe I would have to store each number in a variable, but I couldn't do that either.

Below the link of the capx project

https://drive.google.com/file/d/1fxF-XBWxeRM2KtuSDWdWRjNQnkX3JXja/view?usp=sharing

And below the link of the original project on itch.io.

https://lincolnsalles.itch.io/random-number-machine

construct.net/en/make-games/manuals/construct-3/plugin-reference/advanced-random

Look at the permutation tables section

I've read advanced random and from what I've seen, I have to use the permutation table, but I still don't understand how to use that in this project. I read but didn't understand :-(

Use the create permutation table action with a length of 6. It will generate 6 random numbers without repeats.

Here is an alternate way. It checks the value with all the other values and if any match it randomizes the number again and re-does the check.

dropbox.com/s/z0an316nusgc6nu/unique_random_list.capx

If you were only concerned with the values 1 through 6 you could do something simpler like this too.

dropbox.com/s/mb9he4ke03d7r23/unique_random_list2.capx

Using the permutation table is quite easy. You initialize it with a length and a starting value, and it'll automatically randomize itself.

Problem is, you need to create a visual pseudo-shuffling animation. To that end you can still use a normal random call, but when it's time to pick a final number, you do so using the permutation table at the correct index.

Here's your modified example implementing what I explained :

drive.google.com/file/d/1HkqVTyFrRjg0AvcsHcTZXT25oTs_D_89/view

Here is another example of using permutation tables I made for some other post:

dropbox.com/s/qschy8ji3bfrvxx/PermutationRandomImages.c3p

Using the permutation table is quite easy. You initialize it with a length and a starting value, and it'll automatically randomize itself.

Problem is, you need to create a visual pseudo-shuffling animation. To that end you can still use a normal random call, but when it's time to pick a final number, you do so using the permutation table at the correct index.

Here's your modified example implementing what I explained :

https://drive.google.com/file/d/1HkqVTyFrRjg0AvcsHcTZXT25oTs_D_89/view?usp=sharing

Dude was really worth it. You showed me that I was making a mistake I was never going to guess, that index 1 of the permutation table is actually 0. How was I supposed to guess? So I was calling the index 1 from 1, when it's actually 0. And apart from that, I just changed your example by putting the table to generate not at the beginning of the layout, otherwise it would always be the same when clicking on the button, but I put it to generate when press the button and the variable is not starting.

Thanks for all the replies. Many told me that I would have to use matrix for this. Glad you won't need it. This forum is really good.

Here is an alternate way. It checks the value with all the other values and if any match it randomizes the number again and re-does the check.

https://www.dropbox.com/s/z0an316nusgc6nu/unique_random_list.capx?dl=1

If you were only concerned with the values 1 through 6 you could do something simpler like this too.

https://www.dropbox.com/s/mb9he4ke03d7r23/unique_random_list2.capx?dl=1

R0J0hound

Thank you very much, I confess that your example was too advanced for me lol. I still don't deal very well with loops, but I'll save it to study this more calmly later on. Thank you for that.

Thanks for all the answers, they helped me a lot.