moon phases 2020 (jgs ascii art)

#include <iostream>
#include <unistd.h>
#include <time.h>
#include <fstream>

using namespace std;

void phase_newmoon()
{
cout << "   _..._   " << endl;
cout << " .:::::::. " << endl;
cout << ":::::::::::" << endl;
cout << ":::::::::::" << endl;
cout << "`:::::::::'" << endl;
cout << "  `':::''  " << endl;
cout << "N E W  M O O N" << endl;
}

void phase_waxingcrescent()
{
cout << "   _..._   " << endl;
cout << " .::::. `. " << endl;
cout << ":::::::.  :" << endl;
cout << "::::::::  :" << endl;
cout << "`::::::' .'" << endl;
cout << "  `'::'-'  " << endl;
cout << "W A X I N G  C R E S C E N T" << endl;
}

void phase_firstquarter()
{
cout << "   _..._   " << endl;
cout << " .::::  `. " << endl;
cout << "::::::    :" << endl;
cout << "::::::    :" << endl;
cout << "`:::::   .'" << endl;
cout << "  `'::.-'  " << endl;
cout << "F I R S T  Q U A R T E R" << endl;
}

void phase_waxinggibbous()
{
cout << "   _..._   " << endl;
cout << " .::'   `. " << endl;
cout << ":::       :" << endl;
cout << ":::       :" << endl;
cout << "`::.     .'" << endl;
cout << "  `':..-'  " << endl;
cout << "W A X I N G  G I B B O U S" << endl;
}

void phase_fullmoon()
{
cout << "   _..._   " << endl;
cout << " .'     `. " << endl;
cout << ":         :" << endl;
cout << ":         :" << endl;
cout << "`.       .'" << endl;
cout << "  `-...-'  " << endl;
cout << "F U L L  M O O N" << endl;
}

void phase_waninggibbous()
{
cout << "   _..._   " << endl;
cout << " .'   `::. " << endl;
cout << ":       :::" << endl;
cout << ":       :::" << endl;
cout << "`.     .::'" << endl;
cout << "  `-..:''  " << endl;
cout << "W A N I N G  G I B B O U S" << endl;
}

void phase_lastquarter()
{
cout << "   _..._   " << endl;
cout << " .'  ::::. " << endl;
cout << ":    ::::::" << endl;
cout << ":    ::::::" << endl;
cout << "`.   :::::'" << endl;
cout << "  `-.::''  " << endl;
cout << "L A S T  Q U A R T E R" << endl;
}

void phase_waningcrescent()
{
cout << "   _..._   " << endl;
cout << " .' .::::. " << endl;
cout << ":  ::::::::" << endl;
cout << ":  ::::::::" << endl;
cout << "`. '::::::'" << endl;
cout << "  `-.::''  " << endl;
cout << "W A N I N G  C R E S C E N T" << endl;
}

void phase_cycleall()
{
while (true)
    {
    phase_newmoon(); usleep(370000);
    phase_waxingcrescent(); usleep(370000);
    phase_firstquarter(); usleep(370000);
    phase_waxinggibbous(); usleep(370000);
    phase_fullmoon(); usleep(370000);
    phase_waninggibbous(); usleep(370000);
    phase_lastquarter(); usleep(370000);
    phase_waningcrescent(); usleep(370000);
    }
}

// *****************************************************************************
// *****************************************************************************

int main()
{

// decorative cycling function
//phase_cycleall();
// decorative cycling function

// get the current date
time_t theTime = time(NULL);
struct tm *aTime = localtime(&theTime);
int day = aTime->tm_mday;
int month = aTime->tm_mon + 1;
int year = aTime->tm_year + 1900;
// get the current date

// set up the previous date
int prev_day = --aTime->tm_mday;
int prev_month = aTime->tm_mon + 1;
int prev_year = aTime->tm_year +1900;
// set up the previous date

// open the file for the year
fstream inFile;
if (year == 2017)
{
inFile.open("percent2017.txt");
}
if (year == 2018)
{
inFile.open("percent2018.txt");
}
if (year == 2019)
{
inFile.open("percent2019.txt");
}
if (year == 2020)
{
inFile.open("percent2020.txt");
}
// open the file for the year


// variable for tracking the percentage
float percentagevar;
float yest_percentagevar;
// variable for tracking the percentage

// locate the correct percentage
for (int i = 0; i < (day-1)*13+2+(month-1); i++)
{
    inFile >> percentagevar;
}
// locate the correct percentage

// close the file and clear the stream
inFile.close();
inFile.clear();
// close the file and clear the stream

// open the file for reading #2
if (prev_year == 2017)
{
inFile.open("percent2017.txt");
}
if (prev_year == 2018)
{
inFile.open("percent2018.txt");
}
if (prev_year == 2019)
{
inFile.open("percent2019.txt");
}
if (prev_year == 2020)
{
inFile.open("percent2020.txt");
}

// locate the correct percentage, yesterday
for (int i = 0; i < (prev_day-1)*13+2+(prev_month-1); i++)
{
    inFile >> yest_percentagevar;
}
// locate the correct percentage, yesterday

// close the file
inFile.close();
// close the file

// determine if the moon is waxing
int waxing_binary;
if (yest_percentagevar > percentagevar) waxing_binary = 0;
else waxing_binary = 1;
// determine if the moon is waxing

// UP TO THIS POINT WE HAVE READ THE FILE AND GOTTEN THE PERCENTAGE, STORED AS percentagevar.
// AS WELL AS THE PERCENTAGE YESTERDAY. WE USED THIS TO DETERMINE waxing_binary
// THE GOAL IS NOW TO CONVERT THIS PERCENTAGE TO AN ACTUAL MOON PHASE

cout << "* * " << percentagevar*100 << "% ILLUMINTATED * *" << endl;

if (percentagevar >= 0 && percentagevar < .08) // NEW MOON
    {
    phase_newmoon();
    }
if (percentagevar >= .08 && percentagevar < .25 && waxing_binary == 1) // WAXING CRESCENT
    {
    phase_waxingcrescent();
    }
if (percentagevar >= .25 && percentagevar <.6 && waxing_binary == 1) // FIRST QUARTER
    {
    phase_firstquarter();
    }
if (percentagevar >= .6 && percentagevar < .9 && waxing_binary == 1) // WAXING GIBBOUS
    {
    phase_waxinggibbous();
    }
if (percentagevar >= .9 && percentagevar < 1) // FULL MOON
    {
    phase_fullmoon();
    }
if (percentagevar >= .6 && percentagevar < .9 && waxing_binary == 0) // WANING GIBBOUS
    {
    phase_waninggibbous();
    }
if (percentagevar >= .25 && percentagevar < .6 && waxing_binary == 0) //LAST QUARTER
    {
    phase_lastquarter();
    }
if (percentagevar >= .08 && percentagevar < .25 && waxing_binary == 0) //WANING CRESCENT
    {
    phase_waningcrescent();
    }

    return 0;
}