ID/generator.go

package ID

import "math/rand"

const MaxID = 2 << 24

type Type uint

type Generator struct {
	// IDEA: i hate you
	step Type
	Last Type
}

func (idg *Generator) Next() Type {
	idg.Last = (idg.Last + idg.step) % MaxID
	return idg.Last
}

func New(seed uint32) *Generator {
	return &Generator{
		Last: Type(seed % MaxID),
		step: Type((rand.Uint32() % MaxID) | 1),
	}
}