How do I make a store system in my game?

In a game how do I do a store system, for example: in the store the player buys the jetpack, how do I do to in the game the player that bought the jetpack have a jetpack and the player that dindn't bought the jetpack dont have a jetpack.

(Sorry if is there any words written wrong, I'm not very good in speaking english)

You can store it in a variable, array or object etc. whatever you think is best.

If you are ok at reading English I would suggest that you start reading the following topics in the manual "Variables", "Objects", "Families", "Arrays" they should give you a good idea of how to do it I think.

You can store it in a variable, array or object etc. whatever you think is best.

If you are ok at reading English I would suggest that you start reading the following topics in the manual "Variables", "Objects", "Families", "Arrays" they should give you a good idea of how to do it I think.

Ok, thanks.