void correct (int i)
{
	cout << "You got it in " << i << " probes" << endl;
	//	cout << "Average: " << (i+1)/rounds;
}

#define _CRT_SECURE_NO_DEPRECATE
#include <iostream>
#include <fstream>
#include <cstring>
#include <cctype>
#include <cstdlib>
#include <ctime>

using namespace std;

const int MAXWORDS = 8000;
const int MAXWORDLENGTH = 6;
const int MINWORDLENGTH = 4;
int nWords;

void fillWords(char words[][MAXWORDLENGTH + 1], int maxwords, int& num);
int playOneRound (int wordnum);
void correct (int i);

char wordList [MAXWORDS][MAXWORDLENGTH + 1];

// fills the wordList array
void fillWords(char words[][MAXWORDLENGTH+1], int MAXWORDS, int& num) 
{
	ifstream wordfile("C:/words.txt");
	if ( ! wordfile)
	{
		cout << "Cannot open words.txt!" << endl;
		exit(1);
	}
	char line[10000];
	num = 0;
	while (wordfile.getline(line, 10000))
	{
		if (num == MAXWORDS)
		{
			cout << "Using only the first " << num
				<< " words from words.txt" << endl;
			break;
		}
		int k;
		for (k = 0; islower(line[k]); k++)
			;
		if (line[k] == '\0'  &&  k >= MINWORDLENGTH  &&  k <= MAXWORDLENGTH)
		{
			strcpy(words[num], line);
			num++;
		}
	}
}

int myRand(int myLimit)
{
	return std::rand() % myLimit;
}

bool hasUpperCaseLetters(char guess[MAXWORDLENGTH+1])
{
	for (int b=0; b < strlen(guess); b++)
	{
		if (isupper(guess[b]))
			return true;
	}
	return false;
}

bool doesNotExist (char guess[MAXWORDLENGTH+1])
{
	for (int h=0; h < MAXWORDS; h++)
	{
		if (strcmp (wordList[h], guess) == 0)     // check if guess is not in wordList
			return false;
	}
	return true;
}

// choose a secret word
// check to see if secret word is in wordList
// if in, type in a guess
// count the number of correct characters in guess
int playOneRound (int wordnum)
{                                                                           
	char guess[MAXWORDLENGTH+1];
	int i = 0;
	int h;

	do
	{
		cout << "Probe: ";
		cin >> guess;
		i++;

		for (int b=0; b < strlen(guess); b++)
		{
			if (hasUpperCaseLetters (guess))
			{
				cout << "Your probe must be a word of 4 to 6 lower case letters" << endl;
				break;
			}


			if (doesNotExist (guess))
			{
				cout << "I don't know that word" << endl;
				break;
			}

		}

		if (strcmp (wordList[wordnum], guess) == 0)               // if probe is correct
		{	
			correct(i);
			break;
		}
		else                                                      // if probe not correct
		{	
			for (h=0; h < MAXWORDS; h++)
			{
				if ( strcmp (wordList[h], guess) == 0 )        // if guess is in wordlist
				{	
					int numCorrect = 0;                              // declare numCorrect
					bool boolArray [MAXWORDLENGTH] = {false};       // set all elements in boolArray to false
					for (int z=0; z < MAXWORDLENGTH; z++)            // goes through each char in guess
					{
						for (int j=0; j < MAXWORDLENGTH; j++)       // goes through each char in secret word
						{
							// if found match, change that element to true
							if ((guess[z] == wordList[wordnum][j]) && (boolArray[j] == false)&& (guess[z] != '\0'))   
							{	
								boolArray [j] = true;
								break;                              // break out, so we don't count matches twice
							}							
						}
					}
					for (int a=0; a < MAXWORDLENGTH; a++)
					{
						if ( boolArray [a])
							numCorrect++;
					}
					cout << numCorrect << endl;
					break;
				}
			}	

		}

	}
	while (strcmp (wordList[wordnum], guess) != 0);
	return i;
}		

void correct (int i)
{
	cout << "You got it in " << i << " probes" << endl;
	//	cout << "Average: " << (i+1)/rounds;
	//	<< ",minimum:" << //minimum 
	//	 ", maximum:"; << // maximum << endl;
}


int main ()
{
	fillWords (wordList, MAXWORDS, nWords);

	int rounds;
	cout << "How many rounds do you want to play? ";
	cin >> rounds;

	if (rounds < 0)
	{	
		cout << "Number of rounds must be positive" << endl;
		exit (1);
	}

	for (int a=1; a < rounds+1; a++)
	{
		cout << "Round " << a << endl;
		int random = 5; //myRand(10);
		int length = strlen(wordList[random]);
		cout << "The secret word is " << length << " letters long" << endl;
		int result = playOneRound (random);

	}

	return 0;
}