//********************************************************************************
// Author:		Zhixiang Chen
// Class:		CSCI/CMPE 1170, Spring 2009
// Lab 17:		More modular design and functions
// Date:		January 2009
// Revised on:  06/26/2009 by sirisha surisetty
// Comment:		The code here is meant to be revised.
//
//-------------------------------------------------------------------------------- 
//
// This lab exercise is to show modular design to solve the problem of
// designing and implementing a simple math game. The game trains the user 
// to practice arithmetic operations of +, -, * and /. For each operation, 
// the program generates two random integers with signle digit and asks the result
// from the user. The program keeps statistical info about the user's performance.
//
// Compile and run your program. When everything is fine,
// print your .cpp file and turn it to me or the TA.
// ********************************************************************************

#include <iostream>
#include <fstream>
#include <string>
#include <cstring>
#include <cmath> 
#include <cstdlib>
#include <iomanip>

//include header file
#include "lab_17_head.h"

using namespace std; 

int main( )
{

	//variable declaration
	int number1, number2;					//vars to store int values
	double intResult, doubleResult;			//vars to store the result
	char action;							//var for store the operator
	char flag;								//var to stor the choice
	int plusWins, plusLosses, plusTotal,	//plus stats for winning, losing, and total games played
		minuWins, minuLosses, minuTotal,	//minus stats for winning, losing, and total games played
		multWins, multLosses, multTotal,	//multiplication stats for winning, losing, and total games played
		diviWins, diviLosses, diviTotal;	//division stats for winning, losing, and total games played
	double answer;							//var for answer from the user

	//initializations
	plusWins = plusLosses = plusTotal = 0;	
	minuWins = minuLosses = minuTotal = 0;
	multWins = multLosses = multTotal =	0;
	diviWins = diviLosses = diviTotal = 0;	

	//show welcome message
	welcome(); 

	//enter your choice
	getChoice(flag); 

	//start loop to play the game
	while(flag=='y' || flag=='Y')
	{
		//get operator
		getOperator(action); 
		
		//four cases for action
		switch(action)
		{
			case '+':						//do addition	
					//get two random numbers of two digits
					getTwoNumbers(number1, number2); 
					//add
					intResult = add(number1, number2); 
					//getAnsers from the user
					getAnswer(number1, number2, action, answer); 
					//win or loss
					addGame(intResult, static_cast<int>(answer), plusWins, plusLosses, plusTotal); 
					break; 
		
			case '-':						//do substraction	
					//get two random numbers of two digits
					getTwoNumbers(number1, number2); 
					//add
					intResult = minus(number1, number2); 
					//getAnsers from the user
					getAnswer(number1, number2, action, answer); 
					//win or loss
					minuGame(intResult, static_cast<int>(answer), minuWins, minuLosses, minuTotal); 
					break; 

			case '*':						//do multiplication	
					/***************************************************
					 This part is for you to complete
					 ***************************************************/
					cout<<"This part is for you to complete"<<endl;//changed by sirisha
					//Write your code here
					break;
					
			
			case '/':						//do division	
					/***************************************************
					 This part is for you to complete
					 ***************************************************/
					cout<<"This part is for you to complete"<<endl;//changed by sirisha
					//Write your code here
					break;


			
			default: 
					cout<<action<<" is not a valid operator ." <<endl; 
		}

		//get choice
		getChoice(flag); 
	}

	//show stats
	statsShow(plusWins, plusLosses, plusTotal, minuWins, minuLosses, minuTotal,
		      multWins, multLosses, multTotal, diviWins, diviLosses, diviTotal);	

	//byebye
	bye(); 

	//well done and exit
	return 0; 
}