v2ray-core/common/dice/dice.go

26 lines
500 B
Go

// Package dice contains common functions to generate random number.
// It also initialize math/rand with the time in seconds at launch time.
package dice
import (
"math/rand"
"time"
)
// Roll returns a non-negative number between 0 (inclusive) and n (exclusive).
func Roll(n int) int {
if n == 1 {
return 0
}
return rand.Intn(n)
}
// RandomUint16 returns a random uint16 value.
func RandomUint16() uint16 {
return uint16(rand.Intn(65536))
}
func init() {
rand.Seed(time.Now().Unix())
}