Programming Challenge 2

#include <iostream>
#include <cstring>
#include <conio.h>
#include <cstdlib>
#include <ctime>
using namespace std;

bool isFlomb(char *);
void getStatistics(char *);
char * generateFlomb(void );

char flomb[20];
int eyes, arms, ears, mouth;

int main()
{
    srand(time(NULL));
    cout << "Press 1 to enter your own Flomb, 2 to generate a Flomb or 3 to get statistics" << endl;
    cout << "Option: ";
    char option = _getch();
    cout << endl << endl;

    if(option == '1') // user inputs flomb
    {
        cout << "Enter flomb: ";
        cin.getline(flomb, 20);

        if(isFlomb(flomb) == 1)
        {
            cout << endl << "Your Flomb is valid!" << endl << endl;
        }
        else
        {
            cout << endl << "Your Flomb is not valid." << endl << endl;
        }
    }
    else if(option == '2') // generate flomb
    {
        generateFlomb();
        cout << "Generated Flomb: " << flomb << endl << endl;
    }
    else if(option == '3') // get statistics
    {
        getStatistics(flomb);
    }
    else // invalid input
    {
        cout << "Please try again." << endl;
    }

    main();

    return 0;
}

bool isFlomb(char * input)
{
    int length = strlen(input);
    arms = 0, ears = 0, eyes = 0, mouth = 0;

    for(int i = 0; i < length; i++)
    {
        switch(input[i])
        {
            case '\\':
            case '/':
                arms++;
                break;
            case '_':
                if(mouth > 0)
                {
                    if(input[i-1] != '_')
                    {
                        mouth++; // more than one mouth
                    }
                    else
                    {
                        // just a long mouth
                    }
                }
                else
                {
                    mouth++; // first mouth
                }
                break;
            case 'O':
            case 'o':
                eyes++;
                break;
            case '(':
            case ')':
                ears++;
        }
    }

    if(arms > 2)
    {
        return 0;
    }
    else if(eyes > 2 || eyes < 1)
    {
        return 0;
    }
    else if(ears > 3 || ears < 2)
    {
        return 0;
    }
    else if(mouth > 1 || mouth < 1)
    {
        return 0;
    }
    else
    {
        return 1;
    }
}

void getStatistics(char * input)
{
    int length = strlen(input);
    arms = 0, ears = 0, eyes = 0, mouth = 0;

    for(int i = 0; i < length; i++)
    {
        switch(input[i])
        {
            case '\\':
            case '/':
                arms++;
                break;
            case '_':
                if(mouth > 0)
                {
                    if(input[i-1] != '_')
                    {
                        mouth++; // more than one mouth
                    }
                    else
                    {
                        // just a long mouth
                    }
                }
                else
                {
                    mouth++; // first mouth
                }
                break;
            case 'O':
            case 'o':
                eyes++;
                break;
            case '(':
            case ')':
                ears++;
        }
    }

    cout << "Flomb has " << arms << " arms, " << ears << " ears, " << eyes << " eyes and " << mouth << " mouths" << endl << endl;
}

char * generateFlomb(void )
{
    char temp[10];

    while(isFlomb(temp) == 0)
    {
        arms = 0, ears = 0, eyes = 0, mouth = 0;
        memset(temp, '\0', 10);
        int a = 0, b = 0, c = 0;
        a = rand() % 8;

        for(int i = 0; i < a; i++)
        {
            b = rand() % 4;
            c = rand() % 2;

            switch(b)
            {
            case 0: //arm
                if(arms == 2)
                {
                    // no more arms
                }
                else
                {
                    if(c == 0)
                        temp[i] = '/';
                    else
                        temp[i] = '\\';
                    arms++;
                }
                break;
            case 1: //ear
                if(ears == 3)
                {
                    // no more ears
                }
                else
                {
                     if(c == 0)
                        temp[i] = '(';
                    else
                        temp[i] = ')';
                    ears++;
                }
                break;
            case 2: //eye
                if(eyes == 2)
                {
                    // no more eyes
                }
                else
                {
                    temp[i] = 'O';
                    eyes++;
                }
                break;
            case 3: //mouth
                if(mouth > 0)
                {
                    if(temp[i-1] != '_')
                    {
                        // no more mouths
                    }
                    else
                    {
                        temp[i] = '_'; // longer mouth
                    }
                }
                else
                {
                    temp[i] = '_';
                    mouth++;
                }
                break;
            }
        }
    }

    for(int i = 0; i < 10; i++)
    {
        flomb[i] = temp[i];
    }

    return 0;
}