random.h File Reference

Random number generation. More...

#include "gctypes.h"
#include "logic.h"

Go to the source code of this file.

Functions
float	rand ()
	Generate random number in [0,1]. More...
float	uniform (float a, float b)
	Sample uniformly from [a, b] . More...
unsigned	sample (const float *probs, size_t size)
	Return index of array according to given probabilities. More...
bool	chance (FunctionArg prob)
	Single 'coin flip' with given probability. More...

Detailed Description

Random number generation.

Function Documentation

float rand

(

)

Generate random number in [0,1].

Returns

- Random floating point number in [0,1]

float uniform	(	float	a,
		float	b
	)

Sample uniformly from [a, b] .

Returns

random floating point number in [a, b]

unsigned sample	(	const float *	probs,
		size_t	size
	)

Return index of array according to given probabilities.

Parameters

probs	- array of probabilities, must sum to 1
size	- size of probability array

Returns

index of array

bool chance

(

FunctionArg

prob

)

Single 'coin flip' with given probability.

Parameters

prob	- floating-point value in [0,1]

Returns

Returns true with probability prob