Random Numbers
[Math]

Functions for generating random numbers. More...

Functions
float	getRandom (int a=1, int b=0)
	Get a random number between a and b.
int	getRandomSeed ()
	Get the current seed used by the random number generator.
void	setRandomSeed (int seed=-1)
	Set the current seed for the random number generator.

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Detailed Description

Functions for generating random numbers.

Based on a seed, the random number generator produces a sequence of numbers. As a given seed will always produce the same sequence of numbers this can be used to generate re-producible sequences of apparently random numbers.

To set the seed, call setRandomSeed().

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Function Documentation

float getRandom	(	int	a = 1,
		int	b = 0
	)

Get a random number between a and b.

Parameters:

	a	Lower bound on the random number. The random number will be >= a.
	b	Upper bound on the random number. The random number will be <= b.

Returns:

A pseudo-random number between a and b.

See also:

setRandomSeed

int getRandomSeed

(

)

Get the current seed used by the random number generator.

Returns:

The current random number generator seed value.

void setRandomSeed

(

int

seed = -1

)

Set the current seed for the random number generator.

Based on this seed, a repeatable sequence of numbers will be produced by getRandom().

Parameters:

seed

The seed with which to initialize the randon number generator with. The same seed will always leed tothe same sequence of pseudo-random numbers. If -1, the current timestamp will be used as the seed which is a good basis for randomization.