GKARC4RandomSource

A basic ARC4 Algorithmic random number generator , Used in most game mechanisms ,

Generalization

important

GameplayKit The randomization service provided in is suitable for reliably creating deterministic pseudo-random game mechanisms , But it does not have encryption . For encryption , Confusion or password use , Please use the description “ Encryption Guide ” Of Security frame .

To use this random source to generate basic random values , Please use GKRandom Methods defined in the protocol . To generate random values with a specific range and distribution , Please use this random source with GKRandomDistribution Class or one of its subclasses .

When you create an instance of this class , The generated random source is independent and deterministic , in other words , The sequence of numbers generated by one instance has no effect on the sequence generated by any other instance , And the sequence can be copied if necessary . For more information about replication sequences , see also seed Properties and initWithSeed: Initialization method .

Be careful
GKARC4RandomSource Random source classes use similar algorithms , But independent of arc4random Series of C function .

Topics

Create random source （Creating a Random Source）

- init

Initialize random sources from non deterministic seeds .

- initWithSeed:

Initialize a random source with the specified seed data .

Copy random behavior （Replicating Random Behavior）

seed

Seed data to determine the behavior of random sources .

Avoid predictable behavior （Avoiding Predictable Behavior）

- dropValuesWithCount:

Skip a specified number of values in a random sequence .

Relationship

Inherit

GKRandomSource