pare-pro with SatoshiYoshimura

janken.go

package main
 
import (
  "fmt"
  "math/rand"
  "time"
  "strconv"
)
 
var hand_name = []string{ "GU", "CHOKI", "PA" }
 
func main(){
  var input string
  fmt.Println("Input -> GU:0, CHOKI:1, PA:2")
  fmt.Scanln(&input)
  hand, e := strconv.Atoi(input)
  if e != nil {
    fmt.Println(e)
    return
  }
 
  enemy_hand := janken()
 
  if(enemy_hand >= 0 || enemy_hand <= 2){
    fmt.Printf("あいては%sでした\n", hand_name[enemy_hand])
  }else{
    fmt.Println("0 or 1 or 2だって")
    return
  }
 
  jd := jadge(hand, enemy_hand)
 
  switch jd{
  case WIN:
    fmt.Println("あなたのかち")
  case DRAW:
    fmt.Println("あいこです")
  case LOSE:
    fmt.Println("あなたのまけ")
  }
 
}
 
func janken()(int){
  rand.Seed(time.Now().Unix())
  n := rand.Intn(3)
  return n
}
 
const (
  WIN = iota
  DRAW
  LOSE
)
 
func jadge(playerN int ,cpuN int)(int){
  n := (playerN - cpuN + 3) % 3
  switch n {
    case 0 :
        return DRAW
    case 1 :
        return LOSE
    case 2 :
        return WIN
    }
  return -1
}