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#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cctype>
using namespace std;
struct game{
char **board;
char p1;
char p2;
};
void print_board(game p, int r, int c);
bool play(game p, bool gamewon, int r, int c, int pieces);
bool check(int a, int b, game p, int pieces);
int drop(int b, char player, game p, int c);
int main(int argc, char *argv[]){
game p;
int r, c, pieces;
bool gamewon = false;
if(argc == 7) {
for(int i = 1; i < argc; i += 2) {
if(argv[i][0]=='-' && argv[i][1]=='r')
r = atoi(argv[i+1]);
else if(!strcmp(argv[i],"-c"))
c = atoi(argv[i+1]);
else if(!strcmp(argv[i],"-p")){
pieces = atoi(argv[i+1]);
while (pieces < 1){
cout << "You cannot have 0 pieces to connect." << endl;
cout << "Please enter a positive, non-zero integer"
<< " for the number of pieces to connect: ";
cin >> pieces;
}
}
else
cout << "Error." << endl;
}
}
for(int a =0; a < r; a++){
for(int b = 0; b < c; b++)
p.board[a][b] = ' ';
}
print_board(p, r, c);
gamewon = play(p, gamewon, r, c, pieces);
return 0;
}
bool play(game p, bool gamewon, int r, int c, int pieces){
int col, hold = 0, charsPlaced = 0;
char player = 'y';
while(!gamewon){
if(hold != -1){
if(player =='y'){
cout<<"Player 1, what column do you want to put your piece? ";
player = 'r';
}
else{
cout<<"Player 2, what column do you want to put your piece? ";
player = 'y';
}
}
while(true){
if(charsPlaced == r*c) break;
cin>>col;
col--;
if(col <=r && col>= 0) break;
else cout<< "\nPlease enter a value between 1 and " << c << ": ";
if (cin.fail()){
cin.clear();
char d;
cin>>d;
}
}
if(charsPlaced == r*c) break;
hold = drop(col,player, p, c);
if(hold == -1) cout<<"Column is full!\nPlease enter another number between 1 and " << c << ": ";
else{
gamewon = check(hold,col,p, pieces);
charsPlaced ++;
print_board(p, r, c);
}
}
if(charsPlaced == r*c){
cout<<"No winner! Game is a draw\n";
return true;
}
if(player == 'y')
cout<<"Player 2 is the winner!\n";
else cout<<"Player 1 is the winner!\n";
return true;
}
void print_board(game p, int r, int c){
cout << endl;
for(int a = 0; a < r; a++){
for(int b = 0; b < c; b++)
cout << "|" << p.board[a][b];
cout << "|";
cout << endl;
for(int i = 0; i < c; i++)
cout << "--";
cout << endl;
}
}
bool check(int a, int b, game p, int pieces){
int vertical = 1, horizontal = 1, diagonal1 = 1, diagonal2 = 1, i, j;
char player = p.board[a][b];
for(i = a + 1; p.board[i][b] == player && i <= 5; i++, vertical++);
for(i = a - 1; p.board[i][b] == player && i >= 0; i--, vertical++);
if(vertical >= pieces)
return true;
for(j = b - 1; p.board[a][j] == player && j >= 0; j--, horizontal++);
for(j = b + 1; p.board[a][j] == player && j <= 6; j++, horizontal++);
if(horizontal >= pieces)
return true;
for(i = a - 1, j = b - 1; p.board[i][j] == player && i >= 0 && j >= 0; diagonal1 ++, i--, j--);
for(i = a + 1, j = b + 1; p.board[i][j] == player && i <= 5 && j <= 6;diagonal1 ++, i++, j++);
if(diagonal1 >= pieces)
return true;
for(i = a - 1, j = b + 1;p.board[i][j] == player && i >= 0 && j <= 6; diagonal2 ++, i--, j++);
for(i = a + 1, j = b - 1;p.board[i][j] == player && i <= 5 && j >= 0; diagonal2 ++, i++, j--);
if(diagonal2 >= pieces)
return true;
return false;
}
int drop(int b, char player, game p, int c){
if(b >= 0 && b <= c){
if(p.board[0][b] == ' '){
int i;
for(i = 0; p.board[i][b] == ' '; i++)
if(i == 5){
p.board[i][b] = player;
return i;
}
i--;
p.board[i][b] = player;
return i;
}
else{
return -1;
}
}
else{
return -1;
}
}
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