package main

import (
       "fmt"
       "time"
       "math/rand"
       "sync"
)
var myrand *rand.Rand
var wg sync.WaitGroup

func init()  {
       myrand = rand.New(rand.NewSource(time.Now().UnixNano()))
}

type characters struct {
       name string //人物名称
       attack int //攻击力1-100
       hitRate int //命中率 1-100
       hp chan int //HP
}

func newCharacters(name string,attack,hitRate int) *characters{
       c := characters{name:name,attack:attack,hitRate:hitRate}
       c.hp = make(chan int)
       return &c
}
/*
   攻击者 attacker
   防御者 defender
 */
func game(attacker characters,defender characters){
       fmt.Println(attacker.name,"开始进行攻击")
       lossHP := 0
       surplusHP := <- defender.hp
       if surplusHP <= 0 {
              fmt.Println(defender.name,"剩余生命为",surplusHP,attacker.name,"取得胜利")
              wg.Done()
              return
       }
       //停顿1s
       time.Sleep(1 * time.Second)
       rate := myrand.Intn(100)
       //准备下次攻击
       go game(attacker,defender)
       //随机小于命中率时候 发动攻击
       if attacker.hitRate >= rate {
              lossHP = attacker.attack
              fmt.Println(attacker.name,"对(",defender.name,")造成伤害:",lossHP)
       } else {
              lossHP = 0
              fmt.Println(defender.name,"miss")
       }
       surplusHP -= lossHP
       fmt.Println(defender.name,"剩余生命",surplusHP)
       defender.hp <- surplusHP
}

func main(){
       wg.Add(1)
       char1 := newCharacters("勇士",15,85)
       char2 := newCharacters("恶龙",25,30)

       //准备攻击
       go game(*char1,*char2)
       go game(*char2,*char1)
       //初始化生命
       char1.hp <- 100
       char2.hp <- 160

       wg.Wait()
}

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