Untitled

Visiting all locations in a multidimensional array directly adjacent to some location?
XXX
XOX
XXX

for (int i = x - 1; i <= x + 1; i++) {
    for (int j = y - 1; j <= y + 1; j++) {
        /* Skip the point itself! */
        if (i == x && j == y) continue;

        /* Process the location here */
    }
}

for (int i = x - 1; i <= x + 1; i++) {
    for (int j = y - 1; j <= y + 1; j++) {
        if ((i == x) == (j == y)) continue;

        /* Process the location here */
    }
}

array[i-1][j-1];
array[i-1][j];
array[i-1][j+1];
array[i][j-1];
array[i][j+1];
array[i+1][j-1];
array[i+1][j];
array[i+1][j+1];