// main4a.cpp
// This is the source to hangman by Forest J. Handford
// Copyright (c) 1998
//////////////////////////////////////////////////////

#include <iostream.h>	// For input/output
#include <fstream.h>	// For file input/output
#include <string.h>		// For strcpy
#include <time.h>		// For time
#include <stdlib.h>		// For toupper and tolower

#define MAX_WORD_SIZE 15	// The max size for words
#define MAX_WORDS 255		// The max number of words

void LoadFile();	// Prototypes for our functions
void RunGame();
void DrawGallows(int State);


typedef char String[MAX_WORD_SIZE];	// Make a char type with 15 chars
String Words[MAX_WORDS - 1];		// This array will hold our words
int Count;							//word count

// the main function of our hangman game
void main()
{
	char Continue = 'Y';	// end game if = to 'N'
	cout<<"Welcome to Hangman . . . Don't lose your head!"<<endl;

	LoadFile();	// Load the data file

	// Continue the game as longas the player wants
	while(Continue == 'Y')
	{
		RunGame();	// Run the game
		cout<<endl<<"Do you want to play again (Yes or No)? ";
		cin>>Continue;
		Continue = toupper(Continue);
	}

	// say good bye
	cout<<endl<<"Thanks for playing."<<endl;
}

// This will load our file
void LoadFile()
{
	char C;				//Used to find EOF
	ifstream Datfile;	//The in file

	Count=0;	//Set count to 0
	
	// Open the data file
	Datfile.open("words.dat");

	//Loop till the end of file
	while((C=Datfile.peek()) != EOF)
	{
		// Get the next word and then increment Count
		Datfile>>Words[Count++];

		// If we surpass the max exit and tell the user
		if(Count > MAX_WORDS - 1)
		{
			cout<<endl<<"Too many words in the file, stopping with "
				<<MAX_WORDS<<" Words."<<endl;
			Count = MAX_WORDS;
			break;
		}

	}

	// We need to subtract one to get the correct number of words
	Count--;

	// Close the data file
	Datfile.close();

}

// This function will run the game
void RunGame()
{
	int Word;			// This will hold the subscript of our word
	int Size;			// This will hold the length of our word
	int State=1;		// This holds the game state
	int Subscript=0;	// This will hold subscripts
	char Guess[MAX_WORD_SIZE];	// this will hold their current word
	char Copy[MAX_WORD_SIZE];	// This will hold a copy of the word
	char Letter;		//This will be their letter guess
	int Correct=0;		// This is a True/False value deciding if they got a good answer
	
	// Seed and create a random number
	srand((unsigned)time( NULL ));	// use time as a seed
	Word = rand() % Count;

	// Make a local copy of the word
	strcpy(Copy,Words[Word]);

	Size = strlen(Words[Word]);	// Get the word's size

	// Create a null terminated string to represent the word as the
	// player knows it.
	for(; Subscript < Size; Subscript++)
	{
		Guess[Subscript] = '-';
	}

	// insert the null charachter
	Guess[Subscript] = '\0';

	// Go till the player is hung 
	while(State!=6)
	{
		DrawGallows(State);	//Draw the gallows
		cout<<Guess<<endl;	// Draw Guess

		cout<<"Guess a letter :";
		cin>>Letter;

		// We will use only lower case letters
		Letter = tolower(Letter);
		
		// Loop through the word
		for(Subscript = 0; Subscript < Size; Subscript++)
		{

			//if the guess is good tell the user and update Guess
			if(Copy[Subscript] == Letter)
			{
				Guess[Subscript] = Letter;
				Correct = 1;
				cout<<endl<<"Good Guess!";

				// If guess equals the word they won so exit
				if(strcmp(Words[Word],Guess) == 0)
				{
					cout<<endl<<"Yea, You survived and won!";
					return;
				}
			}
		}

		// If they didn't get aletter correct chide the user
		if(Correct == 0)
		{
			cout<<endl<<"Sorry, bad guess!";
			State++;
		}

		Correct = 0;	// reset Correct

	}

	DrawGallows(State);	//Draw the gallows at end of game
	//They lost if they are here so tell them the answer.
	cout<<"The word was : "<<Words[Word]<<endl<<endl;	

}

// This will Draw the gallows according to the state
void DrawGallows(int State)
{
	if(State==6)
	{
		// The \\ will translate as '\' because it is a special char
		cout<<endl<<endl
			<<"   +----+     "<<endl
			<<"   |    |     "<<endl
			<<"   |    O     "<<endl
			<<"   |   /|\\   "<<endl
			<<"   |   / \\   "<<endl
			<<"   |Your Dead "<<endl
			<<"  ============"<<endl<<endl;
	}
	else if(State==5)
	{
		cout<<endl<<endl
			<<"   +----+  "<<endl
			<<"   |    |  "<<endl
			<<"   |    O  "<<endl
			<<"   |   /|\\ "<<endl
			<<"   |     \\ "<<endl
			<<"   |       "<<endl
			<<"  ============"<<endl<<endl;
	}
	else if(State==4)
	{
		cout<<endl<<endl
			<<"   +----+  "<<endl
			<<"   |    |  "<<endl
			<<"   |    O  "<<endl
			<<"   |   /|\\ "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"  ============="<<endl<<endl;
	}
	else if(State==3)
	{
		cout<<endl<<endl
			<<"   +----+  "<<endl
			<<"   |    |  "<<endl
			<<"   |    O  "<<endl
			<<"   |   /|  "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"  ============="<<endl<<endl;
	}
	else if(State==2)
	{
		cout<<endl<<endl
			<<"   +----+  "<<endl
			<<"   |    |  "<<endl
			<<"   |    O  "<<endl
			<<"   |    |  "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"  ============="<<endl<<endl;
	}
	else if(State==1)
	{
		cout<<endl<<endl
			<<"   +----+  "<<endl
			<<"   |    |  "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"   |       "<<endl
			<<"  ============="<<endl<<endl;
	}

}