Using C++ Write a class called CFBoard that represents a game board for playing
ID: 3895046 • Letter: U
Question
Using C++
Write a class called CFBoard that represents a game board for playing Connect Four.. It should have:
a 7x6 array of char as a data member, which will store the locations of the players' pieces.
a variable called gameState that holds one of the four following values: X_WON, O_WON, DRAW, or UNFINISHED - use an enum type for this, not string (the enum definition should go in CFBoard.hpp, before the class, not inside it).
a default constructor that initializes all elements of the array to being empty (you can use whatever character you want to represent that a square is empty) and initializes the gameState to UNFINISHED.
a method called makeMove that takes the column of the move (1-7, see the example below) and which player's turn it is ('x' or 'o') as parameters. If the gameState is not UNFINISHED, or the selected column is already full, then makeMove should just return false. Otherwise, makeMove should record the move, call the updateGameState method (described next), and return true. The piece that is played should "fall" to the "lowest" unoccupied square of that column (see the example below).
a method called updateGameState. This method takes the array indices of the piece that was just played and updates the gameState if the game has now been won or drawn. The first parameter will be a row index (0-5) and the second parameter will be a column index (0-6). The game has been won when either player has four pieces in a row either orthogonally or diagonally. The game has been drawn when the board is completely full and neither player has won. Since this method is just for internal use, it would normally be private, but I want you to make it public so I can test it separately.
a method called getGameState that just returns the value of gameState.
optional: a method called print, which just prints out the current board to the screen - this is not required, but will very likely be useful for debugging.
Here's a sample excerpt of a game in progress:
Next x plays in column 6:
Next o plays in column 5:
Et cetera.
Whether you think of the array indices as being [row][column] or [column][row] doesn't matter as long as you're consistent. Also, whether the zero row is the "top" or "bottom" doesn't matter as long as you're consistent (same for "left" and "right").
Your class only represents the board, it doesn't actually allow two players to play the game. Other code (that you don't have to write) would use your Board class to make that happen.
The files must be named: CFBoard.hpp and CFBoard.cpp.
Explanation / Answer
Answer:
Here, I have following code as shown below with sample output:
CFBoard.hpp:
// define a structure
struct playerInfo
{
char playerName[81];
char playerID;
};
int PlayerDrop( char board[][10], playerInfo activePlayer );
void Checks ( char board[][10], playerInfo activePlayer, int dropChoice );
void PrintBoard ( char board[][10] );
int CheckFours ( char board[][10], playerInfo activePlayer );
int Fully_Board( char board[][10] );
void PlayerWin ( playerInfo activePlayer );
int Restart ( char board[][10] );
CFBoard.cpp:
#include <iostream>
// define a header file
#include "CFBoard.h"
using namespace std;
// main function
int main()
{
// create an object
playerInfo pOne, pTwo;
// declare array of char
char board[9][10];
int Choices, wit, full, more;
cout << "Let's Play Connect 4" << endl << endl;
cout << "Player One, Enter your Name: ";
// get user input
cin >> pOne.playerName;
pOne.playerID = 'X';
cout << "Player Two, Enter your Name: ";
cin >> pTwo.playerName;
pTwo.playerID = 'O';
full = 0;
wit = 0;
more = 0;
// calls the methods
PrintBoard( board );
do
{
// assign
Choices = PlayerDrop( board, pOne );
Checks( board, pOne, Choices );
PrintBoard( board );
wit = CheckFours( board, pOne );
// checks
if ( wit == 1 )
{
// calls
PlayerWin(pOne);
more = Restart(board);
// checks
if (more == 2)
{
break;
}
}
// calls and assign
Choices = PlayerDrop( board, pTwo );
Checks( board, pTwo, Choices );
PrintBoard( board );
// calls and assign
wit = CheckFours( board, pTwo );
if ( wit == 1 )
{
PlayerWin(pTwo);
more = Restart(board);
// check and compared
if (more == 2)
{
break;
}
}
full = Fully_Board( board );
if ( full == 7 )
{
cout << "The board is full, it is a draw!" << endl;
more = Restart(board);
}
}while ( more != 2 );
return 0;
}
// define a method
int PlayerDrop( char board[][10], playerInfo ActivePlayer )
{
int Choices;
// loop
do
{
cout << ActivePlayer.playerName << "'s Turn ";
cout << "Please enter a number between 1 and 7: ";
cin >> Choices;
// using loop
while ( board[1][Choices] == 'X' || board[1][Choices] == 'O' )
{
cout << "That row is full, Enter a new row: ";
cin >> Choices;
}
}while ( Choices < 1 || Choices > 7 );
return Choices;
}
// define a method
void Checks ( char board[][10], playerInfo aPlayer, int Choices )
{
int length, turn;
length = 6;
turn = 0;
do
{
// checks and compared
if ( board[length][Choices] != 'X' && board[length][Choices] != 'O' )
{
board[length][Choices] = aPlayer.playerID;
turn = 1;
}
else
--length;
}while ( turn != 1 );
}
// define a method
void PrintBoard ( char board[][10] )
{
int Rows = 6, Columns = 7, i, ix;
for(i = 1; i <= Rows; i++)
{
cout << "|";
// use loop
for(ix = 1; ix <= Columns; ix++)
{
// checks
if(board[i][ix] != 'X' && board[i][ix] != 'O')
board[i][ix] = '*';
cout << board[i][ix];
}
cout << "|" << endl;
}
}
// define a method
int CheckFours ( char board[][10], playerInfo aPlayer )
{
// declare variables
char XO;
int win;
XO = aPlayer.playerID;
win = 0;
// using loop
for( int i = 8; i >= 1; --i )
{
for( int ix = 9; ix >= 1; --ix )
{
// checks and compare
if( board[i][ix] == XO &&
board[i-1][ix-1] == XO &&
board[i-2][ix-2] == XO &&
board[i-3][ix-3] == XO )
{
win = 1;
}
if( board[i][ix] == XO &&
board[i][ix-1] == XO &&
board[i][ix-2] == XO &&
board[i][ix-3] == XO )
{
win = 1;
}
// checks and compare
if( board[i][ix] == XO &&
board[i-1][ix] == XO &&
board[i-2][ix] == XO &&
board[i-3][ix] == XO )
{
win = 1;
}
// checks and compare
if( board[i][ix] == XO &&
board[i-1][ix+1] == XO &&
board[i-2][ix+2] == XO &&
board[i-3][ix+3] == XO )
{
win = 1;
}
// checks and compare
if ( board[i][ix] == XO &&
board[i][ix+1] == XO &&
board[i][ix+2] == XO &&
board[i][ix+3] == XO )
{
win = 1;
}
}
}
return win;
}
// Define a method
int Fully_Board( char board[][10] )
{
int full;
full = 0;
// use loop
for ( int i = 1; i <= 7; ++i )
{
// checks and compare
if ( board[1][i] != '*' )
++full;
}
return full;
}
// define a method
void PlayerWin ( playerInfo aPlayer )
{
cout << endl << aPlayer.playerName << " Connected Four, You Win!" << endl;
}
// define a method
int Restart ( char board[][10] )
{
int Restart;
cout << "Would you like to Restart? Yes(1) No(2): ";
cin >> Restart;
// checks and compare
if ( Restart == 1 )
{
for(int i = 1; i <= 6; i++)
{
for(int ix = 1; ix <= 7; ix++)
{
board[i][ix] = '*';
}
}
}
else
cout << "Bye.!!" << endl;
return Restart;
}
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