hangman.go

package main

import (
	"fmt"
	"strings"
)

func main() {
	word := "elephant"

	// lookup for entries made by the user.
	// entries := make(map[string]bool)

  	// list of "_" corrosponding to the number of letters in the word. [ _ _ _ _ _ ]
	placeholder := make([]string, len(word), len(word))

	var guesses string

	for i := range word {
		placeholder[i] = "_"
	}

	chances := 8
	for {
		// evaluate a loss! If user guesses a wrong letter or the wrong word, they lose a chance.

		// evaluate a win!
		userInput := strings.Join(placeholder, "")
		if chances == 0 && userInput != word {
			fmt.Println("You are hanged!")
			break
		}

		if userInput == word {
			fmt.Println("You won!")
			break
		}
    // Console display
		fmt.Println("\n")
		fmt.Println(placeholder) // render the placeholder
		fmt.Printf("Chances Left: %v\n",chances) // render the chances left
		fmt.Printf("Wrong Guesses: [%v]\n", guesses) // show the letters or words guessed till now.
		fmt.Printf("Guess a word: ")

    // take the input
		str := ""
		fmt.Scanln(&str)

		// compare and update entries, placeholder and chances.

			if strings.Contains(word, str) {
				for i,v := range word {
					if string(v) == str {
						placeholder[i] = str //update placeholder array
					}
				}
			} else {
				if !strings.Contains(guesses, str){
					chances -= 1 //decrement chances
					guesses += str; //update gusses
				}
			}
  	}
}