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#include <iostream>
#include <cstdio>
using namespace std;
#define BOARD_W 4
#define BOARD_H 4
void generate(char[][BOARD_H]);
void display(char[][BOARD_H]);
bool validate(char);
bool validate(char[][BOARD_H], int, int);
void mark(char[][BOARD_H], int, int);
bool check(char[][BOARD_H]);
bool check(char[][BOARD_H],int,int);
int main()
{
bool finish = false, valid_reply = false;
char board[BOARD_W][BOARD_H];
char reply;
int count1, count2;
while(finish != true)
{
for(count1 = 0; count1 < BOARD_W; count1++)
{
for(count2 = 0; count2 < BOARD_H; count2++)
{
board[count1][count2] = '.';
}
}
generate(board);
display(board);
//Asks for another go, and ends if told no.
while(valid_reply != true)
{
cout << "\n\nWould you like to generate another configuration? (y/n)";
cin >> reply;
valid_reply = validate(reply);
if(reply == 'n')
finish = true;
else
finish = false;
}
valid_reply = false;
}
}
void generate(char board[][BOARD_H])
{
int W;
int H;
bool valid = false;
do
{
W = rand()%(BOARD_W);
H = rand()%(BOARD_H);
while(board[W][H] != '.')
{
W = rand()%BOARD_W;
H = rand()%BOARD_H;
}
mark(board, W, H);
board[W][H] = 'Q';
cout << endl << H + 1 << " " << W + 1 << " " << check(board) << endl; //DEBUG LINE */
}
while(check(board) != true);
}
void display(char board[][BOARD_H])
{
int count, count1;
for(count1 = 0; count1 < BOARD_H; count1 ++)
{
cout << "\n";
for(count = 0; count < BOARD_W; count++)
{
cout << " -";
}
cout << " \n";
for(count = 0; count < BOARD_W; count++)
{
cout << "|" << board[count][count1];
}
cout << "|";
}
cout << "\n";
for(count = 0; count < BOARD_W; count++)
{
cout << " -";
}
}
bool validate(char reply)
{
if(reply == 'y' || reply == 'n')
return true;
else
return false;
}
void mark(char board[][BOARD_H], int W, int H)
{
int W1, H1, count1;
W1 = W;
H1 = H;
while(W1 > 0 && H1 > 0)
{
W1-- && H1--;
board[W1][H1] = 'X';
}
W1 = W;
H1 = H;
while(W1 <= BOARD_W && H1 > 0)
{
W1++ && H1--;
board[W1][H1] = 'X';
}
W1 = W;
H1 = H;
while(W1 > 0 && H1 <= BOARD_H)
{
W1-- && H1++;
board[W1][H1] = 'X';
}
W1 = W;
H1 = H;
while(W1 <= BOARD_W && H1 <= BOARD_H)
{
W1++ && H1++;
board[W1][H1] = 'X';
}
for(count1 = 0; count1 < BOARD_W; count1++)
{
board[count1][H] = 'X';
}
for(count1 = 0; count1 < BOARD_H; count1++)
{
board[W][count1] = 'X';
}
board[W][H] = 'Q';
return;
}
bool check(char board[][BOARD_H])
{
bool done = true;
int count, count2;
for(count = 0; count < BOARD_W; count++)
{
for(count2 = 0; count2 < BOARD_H; count2++)
{
if(board[count][count2] == '.')
done = false;
}
}
return done;
}
bool check(char board[][BOARD_H], int W, int H)
{
int W1, H1, count1;
W1 = W;
H1 = H;
while(W1 > 0 && H1 > 0)
{
W1-- && H1--;
if(board[W1][H1] == 'Q')
return false;
}
W1 = W;
H1 = H;
while(W1 <= BOARD_W && H1 > 0)
{
W1++ && H1--;
if(board[W1][H1] == 'Q')
return false;
}
W1 = W;
H1 = H;
while(W1 > 0 && H1 <= BOARD_H)
{
W1-- && H1++;
if(board[W1][H1] == 'Q')
return false;
}
W1 = W;
H1 = H;
while(W1 <= BOARD_W && H1 <= BOARD_H)
{
W1++ && H1++;
if(board[W1][H1] == 'Q')
return false;
}
for(count1 = 0; count1 < BOARD_W; count1++)
{
if(board[W1][H1] == 'Q')
return false;
}
for(count1 = 0; count1 < BOARD_H; count1++)
{
if(board[W1][H1] == 'Q')
return false;
}
return true;
}
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