rng

Documentation

Overview

Package rng seeds the family's deterministic random streams. A run is reproduced from a single integer seed, and unrelated systems draw from independent sub-streams so adding or reordering one never disturbs another's sequence.

Stream is the shared primitive: a base seed plus a stream id selects an independent math/rand/v2.Rand. Generation-side code that wants the integer-range and probability helpers uses [worldgen.RNG] instead, which wraps the same PCG source.

Index

• func Stream(seed, stream uint64) *rand.Rand

Functions

func Stream

func Stream(seed, stream uint64) *rand.Rand

Stream returns an independent deterministic RNG for the given stream of a seed. Different stream ids draw from non-overlapping sequences, so a game can give each subsystem — the level, the roster, generation number — its own reproducible stream from one seed.