On pseudorandom numbers and Tetris

So I'm programming a Tetris clone in Sepples and SDL. I need a method of generating a random number between 0 and 6 (seven different types of blocks) that gives a, more or less, even chance for each value to occur. I could use ctime and cstdlib to generate a pseudorandom number, then modulus that number by 7, but that wouldn't be an even chance. Some pieces would fall more often than others.

How does /prog/ get their pseudorandoms to be convincing?

>>27
I'm in!

>>40
Yawn. Close enough. This isn't fuckin' crypto.

>>40
But it's not.  There are 306783379 ways to pick (each of) 0 or 1, but only 306783378 ways to pick 2 through 6.

Newer Posts

---

Don't change these.

Name:		Email:
Entire Thread Thread List