//
// Filename:     pgm3_3d.cpp
//
// Description:   Rolling Dice Simulation #2
//
// ENSC 104:      Digital Computer Programming
//
// Instructor:    Dr. Walsh
//
// Section:       2
//
// Date Created:  03/16/98
// Last Modified: 03/16/98
//
// Name:          N/A
//

#include <iostream.h>
#include <iomanip.h>
#include <stdlib.h>
#include <time.h>


//*************** Function Prototypes *******************
void header( void );
int rollTwoDice( void );
void displayResults( int, int, int, int, int, int,
                     int, int, int, int, int );

main()
   {
   int freq2 = 0;
   int freq3 = 0;
   int freq4 = 0;
   int freq5 = 0;
   int freq6 = 0;
   int freq7 = 0;
   int freq8 = 0;
   int freq9 = 0;
   int freq10 = 0;
   int freq11 = 0;
   int freq12 = 0;
   int i = 0;
   int total = 0;

   srand( time( NULL ) );

   header();

   for ( i=1; i<=10000; i++ )
      {
      total = rollTwoDice();

      switch (total) 
         {
         case 2:
            ++freq2;
            break;

         case 3:
            ++freq3;
            break;

         case 4:
            ++freq4;
            break;

         case 5:
            ++freq5;
            break;

         case 6:
            ++freq6;
            break;

         case 7:
            ++freq7;
            break;

         case 8:
            ++freq8;
            break;

         case 9:
            ++freq9;
            break;

         case 10:
            ++freq10;
            break;

         case 11:
            ++freq11;
            break;

         case 12:
            ++freq12;
            break;
         } // End switch
      } // End for

   displayResults( freq2, freq3, freq4, freq5, freq6, freq7,
                   freq8, freq9, freq10, freq11, freq12 );

   return 0;
   } // End main

void displayResults( int f2, int f3, int f4, int f5, int f6, int f7,
                     int f8, int f9, int f10, int f11, int f12 )
   {
   cout << "Face" << setw(13) << "Frequency\n"
        << "****" << setw(13) << "*********\n"
        << " 2" << setw(13) <<  f2 << ", Prob of a  2 = " << (float) f2/10000 << endl
        << " 3" << setw(13) <<  f3 << ", Prob of a  3 = " << (float) f3/10000 << endl
        << " 4" << setw(13) <<  f4 << ", Prob of a  4 = " << (float) f4/10000 << endl
        << " 5" << setw(13) <<  f5 << ", Prob of a  5 = " << (float) f5/10000 << endl
	<< " 6" << setw(13) <<  f6 << ", Prob of a  6 = " << (float) f6/10000 << endl
	<< " 7" << setw(13) <<  f7 << ", Prob of a  7 = " << (float) f7/10000 << endl
	<< " 8" << setw(13) <<  f8 << ", Prob of a  8 = " << (float) f8/10000 << endl
	<< " 9" << setw(13) <<  f9 << ", Prob of a  9 = " << (float) f9/10000 << endl  
	<< "10" << setw(13) << f10 << ", Prob of a 10 = " << (float)f10/10000 << endl   
	<< "11" << setw(13) << f11 << ", Prob of a 11 = " << (float)f11/10000 << endl   
	<< "12" << setw(13) << f12 << ", Prob of a 12 = " << (float)f12/10000 << endl;   
   }


int rollTwoDice( )
   {
   int face1;
   int face2;
   int ttl;
   
   face1 = 1 + rand() % 6;
   face2 = 1 + rand() % 6;

   ttl = face1 + face2;
   
   return ttl;
   }

void header( void )
   {
   cout << "**** DEMO PROGRAM: pgm3_3d.cpp ****\n";
   cout << "Simulating a Dice #2!\n\n";
   }