// draw N-by-N percolation system
public static void draw(Percolation perc, int N) {
StdDraw.clear();
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.setXscale(-.05 * N, 1.05 * N);
StdDraw.setYscale(-.05 * N, 1.05 * N); // leave a border to write text
StdDraw.filledSquare(N / 2.0, N / 2.0, N / 2.0);
// draw N-by-N grid
int opened = 0;
for (int row = 1; row <= N; row++) {
for (int col = 1; col <= N; col++) {
if (perc.isFull(row, col)) {
StdDraw.setPenColor(StdDraw.BOOK_LIGHT_BLUE);
opened++;
} else if (perc.isOpen(row, col)) {
StdDraw.setPenColor(StdDraw.WHITE);
opened++;
} else StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.filledSquare(col - 0.5, N - row + 0.5, 0.45);
}
}
// write status text
StdDraw.setFont(new Font("SansSerif", Font.PLAIN, 12));
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.text(.25 * N, -N * .025, opened + " open sites");
if (perc.percolates()) StdDraw.text(.75 * N, -N * .025, "percolates");
else StdDraw.text(.75 * N, -N * .025, "does not percolate");
}
public static void main(String[] args) {
In in = new In(args[0]); // input file
int N = in.readInt(); // N-by-N percolation system
// turn on animation mode
StdDraw.show(0);
// repeatedly read in sites to open and draw resulting system
Percolation perc = new Percolation(N);
draw(perc, N);
StdDraw.show(DELAY);
while (!in.isEmpty()) {
int i = in.readInt();
int j = in.readInt();
perc.open(i, j);
draw(perc, N);
StdDraw.show(DELAY);
}
}