Pick a random object from a group and not pick it again

[munh]

Hello,
I want to make a “choice” system, when the scene begin, I want to show 3 random object from a group.
I placed 3 “placeholders” and i move an object to a placeholder for each placeholder. But sometimes it picks an object already on a previous placeholder. I just want to make sure it picks a random object that is not displayed at screen.

[Bubble]

Hi munh, and welcome
This post:

Remove numbers from a randomised range

Hi, how to remove numbers from a range as they are drawn? Example: RandomInRange(1,5) First draw = 3 (removed from the next range) Secund draw will be between numbers: 1,2,4,5. Secund draw = 4 Third draw will be between numbers: 1,2,5. Third draw = 1 Forth draw will be between numbers: 2,5. Third draw = 5 Last draw will give the remaining number: 2. My range has more than five values so I would like to automate this operation.

and this example from E1e5en in that thread will help you

Remove numbers from a randomised range

Project example: dice_roll.json

[munh]

Thank you, it helps !
But this is for a displayed text, and I want to affect objects, not text, I don’t know how to adapt it

[MrMen]

Extend on what @Bubble wrote, and instead of numbers, put in object names.

[munh]

Thank you I managed to do it ! The only thing I want is to delete a chosen string value from an array (like : remove the 4 from the array [1 2 3 4 5 6]

I tried the “splice” option, but it deletes an element from an index and not a specified value

[MrMen]

Use "Remove variable at index...". In your example, the 4 is at array position 3 (arrays are zero indexed, meaning the first position is 0, second is 1 etc), and you’ll need the action :

It will remove the variable, and automatically shift the variables forward a position to fill the spot (only those after it - the variables before the removed variable don’t move).

[munh]

Nevermind, it seems to work by deleting index before shuffle, thank you sm !