Added go version of Guess

00_Alternate_Languages/41_Guess/go/main.go

@@ -0,0 +1,95 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"math"
+	"math/rand"
+	"os"
+	"strconv"
+	"time"
+)
+
+func printIntro() {
+	fmt.Println("                   Guess")
+	fmt.Println("Creative Computing  Morristown, New Jersey")
+	fmt.Println()
+	fmt.Println()
+	fmt.Println()
+	fmt.Println("This is a number guessing game. I'll think")
+	fmt.Println("of a number between 1 and any limit you want.")
+	fmt.Println("Then you have to guess what it is")
+}
+
+func getLimit() (int, int) {
+	scanner := bufio.NewScanner(os.Stdin)
+
+	for {
+		fmt.Println("What limit do you want?")
+		scanner.Scan()
+
+		limit, err := strconv.Atoi(scanner.Text())
+		if err != nil || limit < 0 {
+			fmt.Println("Please enter a number greater or equal to 1")
+			continue
+		}
+
+		limitGoal := int((math.Log(float64(limit)) / math.Log(2)) + 1)
+		return limit, limitGoal
+	}
+
+}
+
+func main() {
+	rand.Seed(time.Now().UnixNano())
+	printIntro()
+
+	scanner := bufio.NewScanner(os.Stdin)
+
+	limit, limitGoal := getLimit()
+
+	guessCount := 1
+	stillGuessing := true
+	won := false
+	myGuess := int(float64(limit)*rand.Float64() + 1)
+
+	fmt.Printf("I'm thinking of a number between 1 and %d\n", limit)
+	fmt.Println("Now you try to guess what it is.")
+
+	for stillGuessing {
+		scanner.Scan()
+		n, err := strconv.Atoi(scanner.Text())
+		if err != nil {
+			fmt.Println("Please enter a number greater or equal to 1")
+			continue
+		}
+
+		if n < 0 {
+			break
+		}
+
+		fmt.Print("\n\n\n")
+		if n < myGuess {
+			fmt.Println("Too low. Try a bigger answer")
+			guessCount += 1
+		} else if n > myGuess {
+			fmt.Println("Too high. Try a smaller answer")
+			guessCount += 1
+		} else {
+			fmt.Printf("That's it! You got it in %d tries\n", guessCount)
+			won = true
+			stillGuessing = false
+		}
+	}
+
+	if won {
+		if guessCount < limitGoal {
+			fmt.Println("Very good.")
+		} else if guessCount == limitGoal {
+			fmt.Println("Good.")
+		} else {
+			fmt.Printf("You should have been able to get it in only %d guesses.\n", limitGoal)
+		}
+		fmt.Print("\n\n\n")
+	}
+}