convertfuel.go

package main

import (
	"fmt"
	"math"
)

// One Gal is equals 6.8 pounds (In simulator with the Zibo)
var refOneGalInPound float64 = 6.8

// Tax to calculate between Kile and pounds
var refPoundToKg float64 = 2.205

func GalToPound(gal float64) string {
	var msg string

	var valTot = refOneGalInPound * gal
	msg = "Total of Gallons to Pounds is: " + fmt.Sprint(math.Floor(valTot*100)/100) + " lb"

	return msg
}

func GalToKilo(gal float64) string {
	var msg string

	var valTot = refOneGalInPound * gal
	valTot = valTot / refPoundToKg
	msg = "Total of Gallons to Kile is: " + fmt.Sprint(math.Floor(valTot*100)/100) + " kg"

	return msg
}

func KileToGal(kg float64) string {
	var msg string

	var valTot = kg / refOneGalInPound
	valTot = valTot * refPoundToKg
	msg = "Total of Kile to Gallons is: " + fmt.Sprint(math.Floor(valTot*100)/100) + " gal"

	return msg
}

func PoundToGal(pound float64) string {
	var msg string

	var valTot = pound / refOneGalInPound
	msg = "Total of Pounds to Gallons is: " + fmt.Sprint(math.Floor(valTot*100)/100) + " gal"

	return msg
}

func main() {

	fmt.Println("")
	fmt.Println("******************************************************")
	fmt.Println("Convert fuel to Gallons, Pounds or Kile.")
	fmt.Println("Used to calculate fuel between FsEconomy and Simbrief.")
	fmt.Println("Author: Rafael Soares")
	fmt.Println("Discord: dogMeat#9141")
	fmt.Println("https://github.com/rslewenstein")
	fmt.Println("Version: 1.01")
	fmt.Println("******************************************************")
	fmt.Println("")

	var gal, pounds, kg float64

	fmt.Print("Enter the number of gallons(gal) (Ex.: 4800.50 or 7000): ")
	fmt.Scanln(&gal)

	fmt.Print("Enter the number of pounds(lb) (Ex.: 4800.50 or 7000): ")
	fmt.Scanln(&pounds)

	fmt.Print("Enter the number of kile(kg) (Ex.: 4800.50 or 7000): ")
	fmt.Scanln(&kg)

	fmt.Println("")

	if gal > 0 {
		fmt.Println(GalToPound(gal))
		fmt.Println(GalToKilo(gal))
	} else {
		fmt.Println("0 gal")
	}

	if pounds > 0 {
		fmt.Println(PoundToGal(pounds))
	} else {
		fmt.Println("0 lb")
	}

	if kg > 0 {
		fmt.Println(KileToGal(kg))
	} else {
		fmt.Println("0 kg")
	}

	fmt.Println("")
	fmt.Println("Press Enter to exit...")
	fmt.Scanln()
}