battleship-cli/tools.go

package main

import (
	"bufio"
	"fmt"
	"os"
	"runtime"
	"strings"
)

func catchErr(err error) (errHappened bool) {
	errHappened = false
	if err != nil {
		errHappened = true
		fmt.Println(err)
		os.Exit(2)
	}
	return errHappened
}

func clear() {
	fmt.Print("\033[H\033[2J")
}

func scanLine() (line string) {
	switch runtime.GOOS {
	case "linux":
		in := bufio.NewReader(os.Stdin)
		lineNew, err := in.ReadString('\n')
		catchErr(err)
		line = strings.Trim(lineNew, "\n")

	case "windows":
		in := bufio.NewReader(os.Stdin)
		lineNew, err := in.ReadString('\r')
		catchErr(err)
		line = strings.Trim(lineNew, "\r")
	}
	return line
}