88 lines
1.4 KiB
Go
88 lines
1.4 KiB
Go
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// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"fmt"
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"math/rand"
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"os"
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"strconv"
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"time"
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)
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const (
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maxTurns = 5 // less is more difficult
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usage = `Welcome to the Lucky Number Game! 🍀
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The program will pick %d random numbers.
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Your mission is to guess one of those numbers.
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The greater your number is, harder it gets.
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Wanna play?
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(Provide -v flag to see the picked numbers.)
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`
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)
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func main() {
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rand.Seed(time.Now().UnixNano())
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args := os.Args[1:]
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if len(args) != 1 {
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fmt.Printf(usage, maxTurns)
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return
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}
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var verbose bool
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if args[0] == "-v" {
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verbose = true
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}
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guess, err := strconv.Atoi(args[0])
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if err != nil {
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fmt.Println("Not a number.")
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return
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}
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if guess < 0 {
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fmt.Println("Please pick a positive number.")
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return
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}
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for turn := 0; turn < maxTurns; turn++ {
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n := rand.Intn(guess + 1)
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if verbose {
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fmt.Printf("%d ", n)
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}
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if n == guess {
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switch rand.Intn(3) {
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case 0:
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fmt.Println("🎉 YOU WIN!")
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case 1:
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fmt.Println("🎉 YOU'RE AWESOME!")
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case 2:
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fmt.Println("🎉 PERFECT!")
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}
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return
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}
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}
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msg := "%s Try again?\n"
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switch rand.Intn(2) {
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case 0:
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fmt.Printf(msg, "☠️ YOU LOST...")
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case 1:
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fmt.Printf(msg, "☠️ JUST A BAD LUCK...")
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}
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}
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