void trace_diagonal(int minefield[SIZE][SIZE], int row, int column) {
    trace_diagonal_line(minefield, row, column, 0, 0); // top left
    trace_diagonal_line(minefield, row, column, 0, SIZE); // top right
    trace_diagonal_line(minefield, row, column, SIZE, 0); // bottom left
    trace_diagonal_line(minefield, row, column, SIZE, SIZE); // bottom right

}

void trace_diagonal_line(int minefield[SIZE][SIZE], int sourceX, int sourceY, int destinationX, int destinationY) {
    int traceStop = 0;
    int srsX = sourceX;
    int srsY = sourceY;
    int dstX = destinationX;
    int dstY = destinationY;

    while ((srsX < SIZE && srsY < SIZE && srsX >= 0 && srsX >= 0) && (traceStop == 0)) {

        if (minefield[srsX][srsY] != HIDDEN_MINE) {
            placeMine(minefield, srsX, srsY, VISIBLE_SAFE);
        }

        int mines = count_in_square(minefield, srsX, srsY, REVEAL_SQUARE_SIZE, HIDDEN_MINE);

        if (mines > 0) {
            traceStop = 1;
        }

        if (srsX > dstX) { // is on left of origin
            srsX--;
        }
        else { // is on right side
            srsX++;
        }

        if (srsY > dstY) { // is on top of origin
            srsY--;
        }
        else { // is on bottom of origin
            srsY++;
        }
    }
}