package main
// 7 Boom game. The user enters a number he wants to start the game,
// (-1 to end the game, or lost), then the user enters numbers, from the number he entered
// If the current number is divisible by 7, or one of its digits is 7,
// And the user did not write the word 'Boom', the user loses.
import (
"bufio"
"fmt"
"os"
"strconv"
"strings"
)
func containsSeven(num int) bool {
return strings.Contains(strconv.Itoa(num), "7")
}
func isBoom(num int) bool {
return num%7 == 0 || containsSeven(num)
}
func getUserInput(prompt string) string {
fmt.Print(prompt)
scanner := bufio.NewScanner(os.Stdin)
scanner.Scan()
return strings.TrimSpace(scanner.Text())
}
func processTurn(expected int, input string) bool {
lower := strings.ToLower(input)
shouldBoom := isBoom(expected)
if shouldBoom {
if lower != "boom" {
fmt.Printf("%s (should be Boom)\n", input)
fmt.Println("YOU LOSE!")
return false
}
} else {
if lower == "boom" {
fmt.Printf("Wrong move! It was %d\n", expected)
fmt.Println("YOU LOSE!")
return false
}
value, err := strconv.Atoi(input)
if err != nil || value != expected {
fmt.Printf("Wrong move! It was %d\n", expected)
fmt.Println("YOU LOSE!")
return false
}
}
return true
}
func runGame() {
startInput := getUserInput("Enter a number from which you want to start the game (-1 to exit): ")
startNum, err := strconv.Atoi(startInput)
if err != nil || startNum == -1 {
return
}
current := startNum
for {
input := getUserInput("Enter a number (or Boom): ")
if input == "-1" {
fmt.Println("Game Over!")
break
}
if !processTurn(current, input) {
break
}
current++
}
}
func main() {
runGame()
}
/*
run:
Enter a number from which you want to start the game (-1 to exit): 6
Enter a number (or Boom): 6
Enter a number (or Boom): Boom
Enter a number (or Boom): 8
Enter a number (or Boom): 9
Enter a number (or Boom): 10
Enter a number (or Boom): 11
Enter a number (or Boom): 12
Enter a number (or Boom): 13
Enter a number (or Boom): Boom
Enter a number (or Boom): 15
Enter a number (or Boom): 16
Enter a number (or Boom): Boom
Enter a number (or Boom): 18
Enter a number (or Boom): 19
Enter a number (or Boom): 20
Enter a number (or Boom): 21
21 (should be Boom)
YOU LOSE!
*/
