falloutBot/go-mc
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Reduce one copy during offline UUID calculation

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This commit is contained in:
Tnze
2021-12-17 10:43:37 +08:00
parent 19481ab95e
commit ee33cedd79
1 changed files with 1 additions and 2 deletions
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3
offline/uuid.go
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@ -11,9 +11,8 @@ func NameToUUID(name string) uuid.UUID {
h := md5.New() h := md5.New()
h.Write([]byte("OfflinePlayer:")) h.Write([]byte("OfflinePlayer:"))
h.Write([]byte(name)) h.Write([]byte(name))
s := h.Sum(nil)
var id uuid.UUID var id uuid.UUID
copy(id[:], s) h.Sum(id[:0])
id[6] = (id[6] & 0x0f) | uint8((version&0xf)<<4) id[6] = (id[6] & 0x0f) | uint8((version&0xf)<<4)
id[8] = (id[8] & 0x3f) | 0x80 // RFC 4122 variant id[8] = (id[8] & 0x3f) | 0x80 // RFC 4122 variant
return id return id