plRandomGauss Class Reference

A random number generator that produces values with a normal / Gaussian distribution. More...

#include <Random.h>

Public Member Functions
void	Initialize (plUInt64 uiRandomSeed, plUInt32 uiMaxValue, float fVariance=1.0f)
	Initializes the RNG and sets the maximum value that the functions UnsignedValue() and SignedValue() may return.
plUInt32	UnsignedValue ()
	Returns a value in range [0; uiMaxValue - 1] with a Gaussian distribution. Ie. 0 is much more probable than uiMaxValue.
plInt32	SignedValue ()
	Returns a value in range [-uiMaxValue + 1; uiMaxValue - 1] with a Gaussian distribution. Ie. 0 is much more probable than +/-uiMaxValue.
void	Save (plStreamWriter &inout_stream) const
	Serializes the current state.
void	Load (plStreamReader &inout_stream)
	Deserializes the current state.

Detailed Description

A random number generator that produces values with a normal / Gaussian distribution.

Member Function Documentation

Initialize()

void plRandomGauss::Initialize	(	plUInt64	uiRandomSeed,
		plUInt32	uiMaxValue,
		float	fVariance = 1.0f )

Initializes the RNG and sets the maximum value that the functions UnsignedValue() and SignedValue() may return.

The Variance configures the distribution of the samples. 1.0 gives a standard bell-curve. Values below 1 lead to a distribution with more emphasis around zero, whereas values above 1 result in a flatter curve with more equally distributed results.

For more details, look here: https://en.wikipedia.org/wiki/Normal_distribution

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The documentation for this class was generated from the following files:

• Code/Engine/Foundation/Math/Random.h
• Code/Engine/Foundation/Math/Implementation/Random.cpp