Talk:The Ultimate Final Combo Goku & Frieza (Final Form) (Angel)/@comment-34300041-20180920192117/@comment-31661832-20181002160925

As a game programmer I can tell you that the friend summons likely don't work because there are too many factors. The way random number generators work is that they generate sets of numbers that aren't actually random, but rather are spread out enough to seem that way. Each set is assign what they call a "seed" (which is a term anyone who's played Minecraft will recognize) and the same seed will reliably produce the same set of numbers.

In order to "predict" what Dokkan will give you, you'd first have to to know what random number generator they're using, what seed is being used, and how many numbers have already been used in that sequence. So let's break it down:

- Finding out which generator they're using is possible, provided we know what Dokkan was coded in (and they used the default number generator for that coding language)

- The seed is close to impossible to guess. It's possible it's just the date or the date-time, but there's no way to be certain. It would actually be bad practice to use just the time as then you could predict summons at certain times of the day. But even if you guess the seed there's still the third part.

- There's no way to know where the number generator is in the sequence because we don't know when and if it resets. It's possible that Bandai uses number generators on their servers, in which case you'd have predict not just the seed but how many times EVERY other player using that server has summoned.

The icing on the cake is that even if you somehow got all three of those things right and could predict what numbers the generator was going to give you, you'd have no idea what to look for. It might make sense to look for numbers that are unusually high or unusually low, but we don't know how the programmers parse the number and choose a card. It could even be multiple numbers per card, one to determine if it's R, SR, or SSR and another to choose the specific card.

All that being said, the only friend summon practice that could potentially be any good is doing multis until you haven't pulled anything good for awhile. This assumes that friend summon uses the numbers the same as the regular banners and that the pattern is fairly normalized. Neither are guaranteed, but statistically if the pattern is close to random and you haven't pulled an SSR in awhile, you're more likely to pull one (assuming the seed hasn't changed and you're still in the same place in the pattern).

Hopefully that sheds a bit of light on how all this stuff works and people start realizing that RNG in Dokkan is not predictable because they designed it that way.