Create MysteryNumber.go

Small game in Goland with UserInput (with control), For loops...

games/Go/MysteryNumber.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"math/rand"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const (
+	maxRange string = "Enter the maximum value for the game :"
+	errorInt string = "Integer required try agin"
+	start    string = "Max value set"
+	getValue string = "What is the number?"
+	higer    string = "It's more"
+	less     string = "It's less"
+)
+
+var (
+	generatedValue int
+	turn           = 0
+)
+
+// Read input from Stdin while input is not a Numeric
+func readInput(output string) (num int) {
+	for {
+		// Create a new reader
+		buf := bufio.NewReader(os.Stdin)
+		fmt.Print(output + "\n")
+		sentence, err := buf.ReadString('\n')
+		// Check if error
+		if err != nil {
+			fmt.Println(err)
+		} else {
+			// remove newLine Char
+			sentence = strings.TrimSuffix(sentence, "\n")
+			// Check if input is numeric
+			if result, converted := isNumeric(sentence); result {
+				return converted
+			}
+			fmt.Println(string(errorInt))
+		}
+	}
+}
+
+// Check if a String is Numeric
+func isNumeric(s string) (bool, int) {
+	converted, err := strconv.ParseFloat(s, 64)
+	return err == nil, int(converted)
+}
+
+// Game function
+func game() {
+	for {
+		value := readInput(getValue)
+		turn++
+		if value > generatedValue {
+			println(less)
+		} else if value < generatedValue {
+			println(higer)
+		} else {
+			fmt.Printf("Well played, you got it in %d turn !\n", turn)
+			return
+		}
+	}
+}
+
+// Main function
+func main() {
+	max := readInput(maxRange)
+	// Set seed otherwise rand.Intn will be the same value everytime
+	rand.Seed(time.Now().UnixNano())
+	generatedValue = rand.Intn(max)
+	fmt.Println(start)
+	game()
+}