ok so basically when you press chat and type in ur characters it checks each letter and assigns each one a number 1-26 according to which letter it is. (for example, a = 1, b = 2, c = 3, and so on also 0's are spaces. the reason they need to be letters is cuz cloud variables only accept numbers) after, it sets the test variable to each of the variables joined. just encrypting and decrypting in scratch.
fyi this isn't finished and wont be cuz that would take a very long time as in hours of my life coding stupid cloud variable stuff