实现一个简单的抢红包的单机控制台游戏

package main

import (
    "fmt"
    "math/rand"
    "os"
    "strconv"
    "time"
)

func main() {
    // 声明初始化cache
    cache := Cache{}

    // 设置红包
    remainCnt, remainMoney := setPacket()

    // 元---> 分
    remainMoney = remainMoney * 100

    for {
        // 输入姓名
        rName := Input()

        // 判读是否已抢
        if val, ok := cache.Get(rName); ok {
            fmt.Printf("你已抢到了%.2f元\n", float32(val)/100)
            continue
        }

        // 分配红包
        rMoney := randPacket(remainCnt, remainMoney)
        fmt.Printf("恭喜你%s，抢到了%.2f元\n", rName, float32(rMoney)/100)

        // 数据存储
        cache.Set(rName, rMoney)

        if remainCnt == 1 {
            fmt.Println("红包被抢完了")
            break
        }

        remainCnt--
        remainMoney -= rMoney
    }
}

// cache
type Cache map[string]int

// get
func (c Cache) Get(key string) (int, bool) {
    if val, ok := c[key]; ok {
        return val, ok
    }

    return 0, false
}

// set
func (c Cache) Set(key string, val int) {
    c[key] = val
}

func setPacket() (count, money int) {
    args := os.Args[1:]
    sName := ""

    if len(args) == 0 {
        fmt.Printf("请输入发红包人姓名:")
        fmt.Scanln(&sName)

        fmt.Printf("请输入红包人数:")
        fmt.Scanln(&count)

        fmt.Printf("请输入红包金额（元）:")
        fmt.Scanln(&money)
    } else {
        sName = args[0]
        count, _ = strconv.Atoi(args[1])
        money, _ = strconv.Atoi(args[2])
    }
    fmt.Printf("%s发送了%d元红包, 开始抢红包。。。\n", sName, money)
    fmt.Println("================华丽的分割线========================")

    return count, money
}

func Input() string {
    var name string
    fmt.Printf("输入姓名抢红包:")
    fmt.Scanln(&name)

    return name
}

func randPacket(remainCnt, remainMoney int) int {
    if remainCnt == 1 {
        return remainMoney
    }

    rand.Seed(time.Now().UnixNano())
    min := 1
    max := remainMoney / remainCnt * 2
    money := min + rand.Intn(max-min)

    return money
}