Server Help

[Bak]

Code: Show/Hide // Seed random number generator (do once when program starts) void seedRandom() {    srand(time(0)); } // Get a random number between lowerBound and upperBound, inclusive // so getRandomNumber(2,4) will return 2, 3, or 4 // if your range is invalid (lowerBound < upperBound) returns -1 int getRandomNumber(int lowerBound, int upperBound) {    int range = upperBound - lowerBound + 1;    int rv = -1;    if (range > 0)   {     rv = lowerBound + rand() % range;   }       return rv; }

And make sure in your code you call seedRandom() once when the program starts (or in the botInfo constructor) and use getRandomNumber(2,85); to get a random number between 2 and 85, inclusive.

so like:

sendPrivate(p,"*setfreq " + (String)getRandomNumber(2,85));

where p is a Player*

[Mine GO BOOM]

Code: Show/Hide // Seed random number generator (do once when program starts) void seedRandom() {    srand(time(0)); } // Get a random number between lowerBound and upperBound, inclusive // so getRandomNumber(2,4) will return 2, 3, or 4 // if your range is invalid (lowerBound < upperBound) returns -1 int getRandomNumber(int lowerBound, int upperBound) {    int range = upperBound - lowerBound + 1;    int rv;    if (range > 0)     rv = lowerBound + (int)(range * ((float)rand() / RAND_MAX));    else if (range == 0)     rv = lowerBound;    else      rv = -1;       return rv; }

A slightly better randomizer. rand() returns with its higher bits more randomizer than its lower bits. So doing 2*(rand()/RAND_MAX) will return an average of 0.5, while rand()%2 may return 0.7 after 1000 trials.

[Bak]

Code: Show/Hide // Stan bak #include <time.h> #include <iostream> #include <stdlib.h> using namespace std; #define RUNS 1000000 int main() {    int numGreater = 0;    int numLess = 0;    int num, x;    srand((int)time(0));    for (x = 0; x < RUNS;++x)    {       num = rand() % 128;       if (num >= 64)          numGreater++;       else          numLess++;    }    cout << "Num less: " << numLess << endl;    cout << "Num greater: " << numGreater << endl;    return 0; }

Output:

TRIAL 1
Num less: 499908
Num greater: 500191

TRIAL 2
Num less: 500224
Num greater: 499776

TRIAL 3
Num less: 500058
Num greater: 499942

TRIAL 4
Num less: 499350
Num greater: 500650

maybe there's different versions of rand?

[Mr Ekted]

Thank you Bak for your sanity in times of chaos (MGB and UL).
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4,691 irradiated haggis!

[Cyan~Fire]

Code: Show/Hide #include <iostream>

You call that sanity?!
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This help is informational only. No representation is made or warranty given as to its content. User assumes all risk of use. Cyan~Fire assumes no responsibility for any loss or delay resulting from such use.
Wise men STILL seek Him.

[Mr Ekted]

I was willing to ignore that transgression for the greater good.

[Underlord]

Code: Show/Hide The rand() function in the Microsoft C library v4.0.          Definition:          SEED = (214013*SEED + 2531011) mod 2**31    X = int( SEED/2**16 )    Returns integer in range [0, 2**15)     {0 inclusive, 2**15 exclusive}

that's a normal linear congruential generator.
y = rand() % M; focuses on the lower bits of rand(), so the lower bytes are much less random than the higher bytes. The lowest bit cycles between 0 and 1.

there's different versions of rand(), so need to know which bak is using. should always use the:

(int) (97 * ((float)rand()/RAND_MAX))

way unless you are sure your rand() function is safe

did some tests awhile back on vc++ 6.0 stdlib rand(), it gave chi square distribution 0.01% (<1% = nonrandom), arithmetic mean 52 (127 = random), monte carlo 4 (should be pi)

http://home1.gte.net/deleyd/random/random4.html#CRAND
http://www.fourmilab.ch/random/

bigshot: long as u do srand then either rand() method, u should be fine. don't need super random numbers for a freq changing bot. post your source if you still can't get it to work

[50% Packetloss]

Just hook your bot up to this random number generator

[Dr Brain]

How random "random" really is doesn't matter in this case. It's not like he's using this for encryption.
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Hyperspace Owner

Smong> so long as 99% deaths feel lame it will always be hyperspace to me