fix bug in encoder_test.go and make Generator.Next() a pointer receiver to advance ids

encoder_test.go

@@ -3,7 +3,7 @@ package ID_test
 import (
 	"testing"
 
-	"go.dedaa.de/julixau/inftut/ID"
+	"go.dedaa.de/julixau/ID"
 )
 
 // Verify that the Encoder works

generator.go

@@ -12,13 +12,13 @@ type Generator struct {
 	Last Type
 }
 
-func (idg Generator) Next() Type {
+func (idg *Generator) Next() Type {
 	idg.Last = (idg.Last + idg.step) % MaxID
 	return idg.Last
 }
 
-func New(seed uint32) Generator {
-	return Generator{
+func New(seed uint32) *Generator {
+	return &Generator{
 		Last: Type(seed % MaxID),
 		step: Type((rand.Uint32() % MaxID) | 1),
 	}