add main.go

Author: hikaru7719

kadai3-1/main.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"os"
+	"fmt"
+	"io"
+	"bufio"
+	"context"
+	"time"
+	"math/rand"
+)
+
+var gameString = []string{"apple","banana","peach","strawberry","cherry","watermelon","pineapple","grape"}
+var totalGame = 0
+var totalScore = 0
+
+func main(){
+	bc := context.Background()
+	t := 30*time.Second
+	ctx,cancel := context.WithTimeout(bc,t)
+	defer cancel()
+
+	ch := input(os.Stdin,ctx)
+LOOP:
+	for{
+		fmt.Println(">")
+		n := rand.Intn(len(gameString))
+		randString := gameString[n]
+		totalGame ++
+		fmt.Println(randString)
+		select {
+		case <-ctx.Done():
+			fmt.Println("time up")
+			break LOOP
+		default:
+			typedString := <-ch
+			if randString == typedString{
+				fmt.Println("ok")
+				totalScore ++
+			}
+		}
+	}
+	fmt.Printf("total score %d/%d",totalScore,totalGame)
+
+}
+
+func input(r io.Reader,ctx context.Context) <-chan string{
+	ch := make(chan string)
+	go func() {
+		s := bufio.NewScanner(r)
+		for s.Scan(){
+			select{
+			case <- ctx.Done():
+				close(ch)
+				return
+			case ch <- s.Text():
+			}
+		}
+	}()
+	return ch
+}