tRandomizer Class Reference

Random generator. More...

#include <tRandom.h>

Inheritance diagram for tRandomizer:

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List of all members.

Public Member Functions
	tRandomizer ()
	default constructor
virtual	~tRandomizer ()
	destructor
REAL	Get ()
	returns a random float in the interval [0,1)
int	Get (int max)
	returns a random integer in the interval [0,max)
Static Public Member Functions
static tRandomizer &	GetInstance ()
	returns the standard randomizer
Protected Attributes
unsigned int	randMax_
Private Member Functions
	tRandomizer (tRandomizer const &other)
	copy constructor
tRandomizer &	operator= (tRandomizer const &other)
	copy operator
virtual unsigned int	GetRawRand ()
	returns a raw random number

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Detailed Description

Random generator.

Definition at line 39 of file tRandom.h.

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Constructor & Destructor Documentation

tRandomizer::tRandomizer

(

void

)

default constructor

Definition at line 53 of file tRandom.cpp.

        :randMax_( RAND_MAX )
{
}

tRandomizer::~tRandomizer

(

void

)

[virtual]

destructor

Definition at line 122 of file tRandom.cpp.

{
}

tRandomizer::tRandomizer

(

tRandomizer const &

other

)

[private]

copy constructor

Parameters:

other

copy source

Definition at line 136 of file tRandom.cpp.

References tASSERT.

{
    tASSERT( 0 ); // not implemented
}

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Member Function Documentation

REAL tRandomizer::Get

(

void

)

returns a random float in the interval [0,1)

Returns:

random value between 0 and 1

Definition at line 68 of file tRandom.cpp.

References a, b, GetRawRand(), randMax_, and REAL.

Referenced by gCycleChatBot::Activate(), ePlayer::ePlayer(), gGame::GameLoop(), Get(), nServerInfo::GetRandomMaster(), gArena::GetRandomPos(), gSpark::gSpark(), init_exp(), zSelector::pickOne(), nServerInfo::QueryServer(), Random(), nKrawall::RandomSalt(), nSocket::Read(), eAudioPos::Reset(), gGame::StateUpdate(), ve_math_random(), and nSocket::Write().

{
    // Grr. VisualC 6 can't handle this in one line.
    REAL a = GetRawRand();
    REAL b = randMax_;

    return a / b;
}

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int tRandomizer::Get

(

int

max

)

returns a random integer in the interval [0,max)

Parameters:

max

upper limit of the return value

Returns:

random integer value between 0 and max - 1

Definition at line 88 of file tRandom.cpp.

References floorf(), Get(), and tASSERT.

{
    int ret = int( floorf( Get() * max ) );
    tASSERT( 0 <= ret );
    tASSERT( ret < max );

    return ret;
}

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tRandomizer & tRandomizer::GetInstance

(

void

)

[static]

returns the standard randomizer

Returns:

Reimplemented in tReproducibleRandomizer.

Definition at line 107 of file tRandom.cpp.

Referenced by ePlayer::ePlayer(), gGame::GameLoop(), gSpark::gSpark(), init_exp(), zSelector::pickOne(), Random(), nKrawall::RandomSalt(), eAudioPos::Reset(), gGame::StateUpdate(), and ve_math_random().

{
    static tRandomizer randomizer;
    return randomizer;
}

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tRandomizer & tRandomizer::operator=

(

tRandomizer const &

other

)

[private]

copy operator

Parameters:

other

copy source

Returns:

reference to this for chaining

Definition at line 152 of file tRandom.cpp.

References tASSERT.

{
    tASSERT( 0 ); // not implemented

    return *this;
}

unsigned int tRandomizer::GetRawRand

(

void

)

[private, virtual]

returns a raw random number

Returns:

random value between 0 and randMax_

Reimplemented in tReproducibleRandomizer.

Definition at line 169 of file tRandom.cpp.

Referenced by Get().

{
    return rand();
}

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Member Data Documentation

unsigned int tRandomizer::randMax_ [protected]

Definition at line 51 of file tRandom.h.

Referenced by Get(), and tReproducibleRandomizer::tReproducibleRandomizer().

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

• src/tools/tRandom.h
• src/tools/tRandom.cpp

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