codewars/books/go_head_first/misc/guess.go

// guess - игра, в которой игрок должен угадать случайное число.
package main

import (
	"bufio"
	"fmt"
	"log"
	"math/rand"
	"os"
	"strconv"
	"strings"
)

func intInput(message string) int {
	reader := bufio.NewReader(os.Stdin)
	fmt.Println(message)
	input, err := reader.ReadString('\n')
	if err != nil {
		log.Fatal(err)
	}
	input = strings.TrimSpace(input)
	ret, err := strconv.Atoi(input)
	if err != nil {
		log.Fatal(err)
	}
	return ret
}

func main() {
	target := rand.Intn(100) + 1
	fmt.Println("I've chosen a random number berween 1 and 100.")
	fmt.Println("Can you guess it?")

	success := false
	for guesses := 0; guesses < 10; guesses++ {
		fmt.Println("You have", 10-guesses, "guesses left.")

		guess := intInput("Make a guess: ")

		if guess < target {
			fmt.Println("Oops. Your guess was LOW.")
		} else if guess > target {
			fmt.Println("Oops. Your guess was HIGH")
		} else {
			success = true
			fmt.Println("Good job! You guessed it!")
			break
		}
	}

	if !success {
		fmt.Println("Sorry, you didn't guess my number. It was:", target)
	}

}