C# Class Lidgren.Network.NetRandom

A fast random number generator for .NET Colin Green, January 2005

Mostra file Open project: tomoprime/CrabBattle Class Usage Examples

Public Properties

Property	Type	Description
Instance	NetRandom

Public Methods

Method	Description
GetSeed ( object forObject ) : int	Create a semi-random seed based on an object
NetRandom ( ) : System	Initialises a new instance using time dependent seed.
NetRandom ( int seed ) : System	Initialises a new instance using an int value as seed. This constructor signature is provided to maintain compatibility with System.Random
Next ( ) : int	Generates a random int over the range 0 to int.MaxValue-1. MaxValue is not generated in order to remain functionally equivalent to System.Random.Next(). This does slightly eat into some of the performance gain over System.Random, but not much. For better performance see: Call NextInt() for an int over the range 0 to int.MaxValue. Call NextUInt() and cast the result to an int to generate an int over the full Int32 value range including negative values.
Next ( int upperBound ) : int	Generates a random int over the range 0 to upperBound-1, and not including upperBound.
Next ( int lowerBound, int upperBound ) : int	Generates a random int over the range lowerBound to upperBound-1, and not including upperBound. upperBound must be >= lowerBound. lowerBound may be negative.
NextBool ( ) : bool	Generates a single random bit. This method's performance is improved by generating 32 bits in one operation and storing them ready for future calls.
NextBytes ( byte buffer ) : void	Fills the provided byte array with random bytes. This method is functionally equivalent to System.Random.NextBytes().
NextDouble ( ) : double	Generates a random double. Values returned are from 0.0 up to but not including 1.0.
NextInt ( ) : int	Generates a random int over the range 0 to int.MaxValue, inclusive. This method differs from Next() only in that the range is 0 to int.MaxValue and not 0 to int.MaxValue-1. The slight difference in range means this method is slightly faster than Next() but is not functionally equivalent to System.Random.Next().
NextSingle ( ) : float	Generates a random single. Values returned are from 0.0 up to but not including 1.0.
NextUInt ( ) : uint	Generates a uint. Values returned are over the full range of a uint, uint.MinValue to uint.MaxValue, inclusive. This is the fastest method for generating a single random number because the underlying random number generator algorithm generates 32 random bits that can be cast directly to a uint.
Reinitialise ( int seed ) : void	Reinitialises using an int value as a seed.

Method Details

GetSeed() public method

Create a semi-random seed based on an object

public GetSeed ( object forObject ) : int
forObject	object
return	int

NetRandom() public method

Initialises a new instance using time dependent seed.

public NetRandom ( ) : System
return	System

NetRandom() public method

Initialises a new instance using an int value as seed. This constructor signature is provided to maintain compatibility with System.Random

public NetRandom ( int seed ) : System
seed	int
return	System

Next() public method

Generates a random int over the range 0 to int.MaxValue-1. MaxValue is not generated in order to remain functionally equivalent to System.Random.Next(). This does slightly eat into some of the performance gain over System.Random, but not much. For better performance see: Call NextInt() for an int over the range 0 to int.MaxValue. Call NextUInt() and cast the result to an int to generate an int over the full Int32 value range including negative values.

public Next ( ) : int
return	int

Next() public method

Generates a random int over the range 0 to upperBound-1, and not including upperBound.

public Next ( int upperBound ) : int
upperBound	int
return	int

Next() public method

Generates a random int over the range lowerBound to upperBound-1, and not including upperBound. upperBound must be >= lowerBound. lowerBound may be negative.

public Next ( int lowerBound, int upperBound ) : int
lowerBound	int
upperBound	int
return	int

NextBool() public method

Generates a single random bit. This method's performance is improved by generating 32 bits in one operation and storing them ready for future calls.

public NextBool ( ) : bool
return	bool

NextBytes() public method

Fills the provided byte array with random bytes. This method is functionally equivalent to System.Random.NextBytes().

public NextBytes ( byte buffer ) : void
buffer	byte
return	void

NextDouble() public method

Generates a random double. Values returned are from 0.0 up to but not including 1.0.

public NextDouble ( ) : double
return	double

NextInt() public method

Generates a random int over the range 0 to int.MaxValue, inclusive. This method differs from Next() only in that the range is 0 to int.MaxValue and not 0 to int.MaxValue-1. The slight difference in range means this method is slightly faster than Next() but is not functionally equivalent to System.Random.Next().

public NextInt ( ) : int
return	int

NextSingle() public method

Generates a random single. Values returned are from 0.0 up to but not including 1.0.

public NextSingle ( ) : float
return	float

NextUInt() public method

Generates a uint. Values returned are over the full range of a uint, uint.MinValue to uint.MaxValue, inclusive. This is the fastest method for generating a single random number because the underlying random number generator algorithm generates 32 random bits that can be cast directly to a uint.

public NextUInt ( ) : uint
return	uint

Reinitialise() public method

Reinitialises using an int value as a seed.

public Reinitialise ( int seed ) : void
seed	int
return	void

Property Details

Instance public_oe static_oe property

Gets a global NetRandom instance

public static NetRandom,Lidgren.Network Instance
return	NetRandom