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Random generator - not always 1/3? - Page 2

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Physician *
Profile Blog Joined January 2004
United States4146 Posts
Last Edited: 2006-02-21 20:33:23
February 21 2006 20:31 GMT
#21
Nal_Testie Canada. December 25 2004 13:52.
There is something we refer to as the, "Random bug" that i've known for years and years. It does not work on observer maps (it may, I forget and have a lot of christmas alcohol in me), or if any person in the game PICKS his race.

In 1on1's, it is indeed random. And is always random. The chance of a mirror matchup however in RvR is extremely rare and almost never happens. But, it occasionally does.

In 2on2's, if all four players random. And you are z/z your opponents are t/p (automatically).
If all four random and you and your ally get z/p, one of your opponents is T. And the other may be z/t/p. Likewise if you are t/t they are z/p. Etc.. etc...

In games with 8 players, for race wars. All players can random without ever having to fear that you will have a team of five protosses, three terrans etc... It is always 3 of one race, 3 of another, and 2 of the other. Unless one person picks and fucks it all up.

So in any game including 1on1, it is indeed random. There are days when you will random zerg almost for an entire day, random terran, or random toss. But they are rare instances.

I didn't read any of the other posts. So if anyone else pointed this out, good job. If not, what a bunch of fucking morons.

Happy Holidays


dt Germany. December 25 2004 16:35.

I have disassembled Starcrafts "random" algorithm long ago, Nal_testie is right of course. It's quite complex and the person who coded it was probably drunk. The probability of a mirror 1vs1 matchup if both players go random is exactly 1/24, for instance.


Only 2 useful things said in da original thread.
"I have beheld the births of negative-suns and borne witness to the entropy of entire realities...."
Haemonculus
Profile Blog Joined November 2004
United States6980 Posts
February 21 2006 23:36 GMT
#22
On February 21 2006 07:35 Liquid`Drone wrote:
well

random vs random = only 1/24 becomes a mirror matchup (I used to think 1/27, but 1/24 makes sense too)
but picked vs random = mirror matchup 1/3 of the time.


Random vs Random SHOULD result in a mirror 1/3 of the time, as should picked vs random. Probability wise they're the same. How exactly does the generator decide to pick 1/24 instead?
I admire your commitment to being *very* oily
Insane
Profile Blog Joined November 2003
United States4991 Posts
Last Edited: 2006-02-22 00:25:52
February 22 2006 00:24 GMT
#23
On February 21 2006 07:35 Liquid`Drone wrote:
well

random vs random = only 1/24 becomes a mirror matchup (I used to think 1/27, but 1/24 makes sense too)
but picked vs random = mirror matchup 1/3 of the time.

It should be 1/3 for both I think. There are 9 possible matchups in RvR, and 3 of those are mirror matchups -- The race one person gets should not affected by the race the other person gets.

Edit: Although apparently Blizzard did it oddly.
Locked
Profile Joined September 2004
United States4182 Posts
Last Edited: 2006-02-22 01:47:04
February 22 2006 01:46 GMT
#24
blizzard just wanted more race variety in games, that's what i always assumed, i mean it would be a lot easier to code it just to have it be truly random so it must be intentional that they factor in other players races

perfectly valid reason IMO, wouldn't it suck to have like 8-players random and 6 of them get terran, or if you're mass RvRing then you get mirrors 1/3 of the time?
UMS map pack http://teamliquid.net/forum/viewmessage.php?topic_id=50442
Haemonculus
Profile Blog Joined November 2004
United States6980 Posts
February 22 2006 02:15 GMT
#25
It would suck, no question. I was just curious as to how they arrived at 1/24 mathematically.
I admire your commitment to being *very* oily
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