WEC 1.5

/**
 Wurmple Evolution Calculator

 Wurmple uses a unique method of evolution which involves performing bitwise
 and modulo operations on the Pokémon's PID value. The widely-held theory on the
 calculation used by the game was

    (PID & 0xFFFF % 10 <= 4) ? Silcoon : Cascoon

 but this turned out to be incorrect thanks to Pokécheck administrator Bond697's
 work on the subject, who turned up the equation

    (PID >> 0x10 % 10 <= 4) ? Silcoon : Cascoon

 Several test cases with 5th generation Wurmples have lent credence to the new
 equation, which this program implements in a friendly command interface. As of
 11 May 2012, this program remains untested for Wurmple evolution in any games
 prior to Black and White.
*/

#include <iostream>
#include <stdint.h>
using namespace std;

class EvolutionFlag {
private:
    unsigned char EvolutionTest;
    string SilcoonOrCascoon;

public:
    EvolutionFlag(uint32_t PID)
    {
        unsigned char EvolutionTest = (PID >> 0x10) % 0xA;
        if (EvolutionTest <= 4)
            SilcoonOrCascoon = "Silcoon";
        else
            SilcoonOrCascoon = "Cascoon";
    }

    string GetEvo() {
        return SilcoonOrCascoon;
    }
};


int main()
{
    cout << "Wurmple Evolution Calculator \n";
    cout << "ver. 1.5 by M.andrew 2013 \n";
    cout << "Discovery of mechanism: Bond697 \n\n";

    unsigned int PIDFormat;
    while (1) {
        do {
            PIDFormat == 0;
            cout << "Which PID format?\n";
            cout << "\t0 for hex\n\t1 for decimal\n\tCtrl-C at any time quits the program\n\n";
            cout << "Eh? ";
            while (cin >> PIDFormat)
            {
                if (PIDFormat > 1)
                {
                    cout << "\n***ERROR!***\nYou have entered a value besides 0 or 1.\n";
                    continue;
                }
            }
        } while ((PIDFormat != 0) && (PIDFormat != 1));

        uint32_t WurmplePID;
        switch (PIDFormat)
        {
            case 0:
                cout << "Specify PID of Wurmple (hex): ";
                cin >> hex >> WurmplePID;
                break;
            case 1:
                cout << "Specify PID of Wurmple (dec): ";
                cin >> WurmplePID;
                break;
        }

        EvolutionFlag NewEvo(WurmplePID);
        cout << "\n\nFor a PID of 0x" << hex << WurmplePID <<
        ", your Wurmple will evolve into " + NewEvo.GetEvo() + "!\n\n";
    }
}