go取扑克牌值与花色与生成随机数与取不重复的牌

//取扑克花色
func GetPokerColor(cardData byte) uint8 {
  return cardData / 16
}

//取扑克牌值
func GetPokerValue(cardData byte) uint8 {
  return cardData & 255 % 16
}

//取扑克牌值,花色
func GetPokerValueAndColor(cardData byte) (uint8, uint8) {
  return cardData & 255 % 16, cardData / 16
}

//生成随机数
func GetRandNum(theMaxNum uint32) int32 {
  r := rand.New(rand.NewSource(time.Now().UnixNano()))
  return r.Int31n(int32(theMaxNum))
}

//取不重复的牌
func GetCards(count uint32, cardMaxCount uint32) []byte {
  cards := make([]byte, count)
  for j := 0; j < 5; j++ {
    for i := 0; i < 3; i++ {
      v := GetRandNum(cardMaxCount)
      for k := 0; k < len(cards); k++ {
        if v == int32(cards[k]) {
          v = GetRandNum(cardMaxCount)
        }
      }
      cards[i+j*3] = byte(v)
    }
  }
  return cards
}

测试

//生成牌
  fmt.Println(c.GetCards(15, 52))
  colorName := []string{"方块", "梅花", "红桃", "黑桃"}
  cardIndex := c.GetCards(15, 52)
  for i := 0; i < len(cardIndex); i++ {
    value, color := c.GetPokerValueAndColor(c.GAME_CARD_DATA[cardIndex[i]])
    v := fmt.Sprintf("[%v%v],", colorName[color-1], value)
    fmt.Print(v)
  }