Hi. I have completed a program that plays a Zero Gravity Floating Connect Four. I.E. it can take checkers from the bottom, top, left, or right sides. It works, however, the win conditions do not seem to be working. I am not sure where the problem lies.
#include <iostream>
using namespace std;
//Constants
const int BOARD_COL_SIZE = 7;
const int BOARD_ROW_SIZE = 6;
class ConnectFourBoard {
public:
//initializes the board and constructs it
ConnectFourBoard()
{
for(int i = 0; i < 6; i++)
{
for(int j=0; j<7; j++)
{
grid[i][j] = ' ';
}
}
}
//prints the board
void print() {
cout << "Floating Connect Four Board" << endl;
cout << " 1 2 3 4 5 6 7" << endl;
for(int i = 0; i < 6; i++) {
cout << i+1;
for(int j = 0; j < 7; j++) {
cout << "|" << grid[i][j];
}
cout << "|" << endl;
cout << " - - - - - - -" << endl;
}
}
//adds pieces 'R' or 'B' to the board
void addPiece(char side, int location, char player)
{
switch(side)
{
case 'l':
for(int i = 0; i < 7; i++)
{
if(grid[location-1][i] == ' ')
{
if(i+1 >= 7)
{
grid[location-1][6] = player;
}
else if(grid[location-1][i+1] != ' ')
{
grid[location-1][i] = player;
}
}
}
break;
case 'r':
for(int i = 6; i >= 0; i--)
{
if(grid[location-1][i] == ' ')
{
if((grid[location-1][i-1] != ' ') && (i > -1))
{
grid[location-1][i] = player;
}
else
{
grid[location-1][-1] = player;
}
}
}
break;
case 't':
for(int i = 0; i <= 6; i++)
{
if(grid[i][location-1] == ' ')
{
if((grid[i+1][location-1] != ' ') && (i < 6))
{
grid[i][location-1] = player;
}
else
{
grid[6][location-1] = player;
}
}
}
break;
case 'b':
for(int i = 5; i >= -1; i--)
{
if(grid[i][location-1] == ' ')
{
if((grid[i-1][location-1] != ' ') && (i > -1))
{
grid[i][location-1] = player;
}
else
{
grid[-1][location-1] = player;
}
}
}
break;
}
}
//enters R or B and whether it is valid
bool checkInput(char side, int location)
{
if(side != 't' && side != 'b' && side != 'r' && side != 'l')
{
return false;
}
else
{
if(side == 't' || side == 'b')
{
if(location < 1 || location > 7)
{
return false;
}
else
{
if(location < 1 || location > 6)
{
return false;
}
}
}
}
if(side == 't')
{
if(grid[0][location-1] != ' ')
{
return false;
}
}
else if(side == 'b')
{
if(grid[5][location-1] != ' ')
{
return false;
}
}
else if(side == 'l')
{
if(grid[location-1][0] != ' ')
{
return false;
}
}
else if(side == 'r')
{
if(grid[location-1][6] != ' ')
{
return false;
}
}
return true;
}
//checks to see if there is a winner after each input
bool checkWinner(char player)
{
for(int i = 0; i < 6; i++)
{
for(int j = 0; j < 7; j++)
{
if(grid[i][j] == player)
{
if(i-3 >= 0)
{
if((grid[i-1][j] == player) && (grid[i-2][j] == player) && (grid[i-3][j] == player))
{
return true;
}
}
if(i+3 < 6)
{
if((grid[i+1][j] == player) && (grid[i+2][j] == player) && (grid[i+3][j] == player))
{
return true;
}
}
if(j-3 >= 0)
{
if((grid[i][j-1] == player) && (grid[i][j-2] == player) && (grid[i][j-3] == player))
{
return true;
}
}
if(j+3 < 7)
{
if((grid[i][j+1] == player) && (grid[i][j+2] == player) && (grid[i][j+3] == player))
{
return true;
}
}
if((i-3 >= 0) && (j -3 >= 0))
{
if((grid[i-1][j-1] == player) && (grid[i-2][j-2] == player) && (grid[i-3][j-3] == player))
{
return true;
}
}
if((i-3 >= 0) && (j + 3 < 7))
{
if((grid[i-1][j+1] == player) && (grid[i-2][j+2] == player) && (grid[i-3][j+3] == player))
{
return true;
}
}
if((i+3 < 6) && (j+3 < 7))
{
if((grid[i+1][j+1] == player) && (grid[i+2][j+2] == player) && (grid[i+3][j+3] == player))
{
return true;
}
}
if((i+3 < 6) && (j-3 > 0))
{
if((grid[i+1][j-1] == player) && (grid[i+2][j-2] == player) && (grid[i+3][j-3] == player))
{
return true;
}
}
}
}
}
return false;
}
bool checkTie(char player)
{
for(int i = 0; i < 6; i++)
{
if(grid[i][0] == ' ')
{
return false;
}
}
for(int i = 0; i < 6; i++)
{
if(grid[i][6] == ' ')
{
return false;
}
}
for(int j = 0; j < 7; j++)
{
if(grid[0][j] == ' ')
{
return false;
}
}
for(int j = 0; j < 7; j++)
{
if(grid[6][j] == ' ')
{
return false;
}
}
return true;
}
private:
char grid[BOARD_ROW_SIZE][BOARD_COL_SIZE];
};
class Game {
public:
void play();
private:
void printHeader() {
cout << "Let's play Floating Connect Four" << endl;
}
void printPrompt() {
cout << "Enter side (t, b, l, r) and location (1 to 7): ";
}
void printError() {
cout << "Invalid location or side." << endl;
}
void printWinner(int player) {
cout << "Player " << player << " wins!" << endl;
}
void printTieGame() {
cout << "Tie game. No one wins." << endl;
}
ConnectFourBoard board;
};
void Game::play()
{
bool isGameOver = false;
char side;
int location;
while(isGameOver == false)
{
printHeader();
printPrompt();
cin >> side;
cin >> location;
while(board.checkInput(side, location) == false)
{
printError();
printPrompt();
cin >> side;
cin >> location;
}
if(board.checkWinner('R') == true)
{
printWinner(1);
isGameOver = true;
}
if(board.checkTie('R') == true)
{
printTieGame();
isGameOver = true;
}
board.addPiece(side, location, 'R');
board.print();
if(isGameOver == false)
{
printPrompt();
cin >> side;
cin >> location;
if(board.checkTie('B') == true)
{
printTieGame();
isGameOver = true;
}
if(board.checkWinner('B') == true)
{
printWinner(2);
isGameOver = true;
}
board.addPiece(side, location, 'B');
board.print();
}
}
}
//main function that plays the game
int main() {
Game myGame;
myGame.play();
return 0;
}
