package main

import "math/rand"

// SeedProvider provides a stream of random seeds from a single initial seed
type SeedProvider struct {
	rand *rand.Rand
}

// NewSeedProvider creates a new SeedProvider with the given initial seed
func NewSeedProvider(seed int64) *SeedProvider {
	return &SeedProvider{
		rand: rand.New(rand.NewSource(seed)),
	}
}

// Next returns the next random seed in the sequence
func (sp *SeedProvider) Next() int64 {
	return sp.rand.Int63()
}