// draw N-by-N percolation system
public static void draw(Percolation perc, int N) {
StdDraw.clear();
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.setXscale(0, N);
StdDraw.setYscale(0, N);
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);
else if (perc.isOpen(row, col)) StdDraw.setPenColor(StdDraw.WHITE);
else StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.filledSquare(col - 0.5, N - row + 0.5, 0.45);
if (perc.isOpen(row, col)) opened++;
}
}
// 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");
}
private static void draw(
boolean[][] maze, boolean[][] solution, int rowS, int colS, int rowE, int colE) {
StdDraw.clear();
StdDraw.setPenColor(StdDraw.BLACK);
int N = maze[0].length;
StdDraw.setXscale(-1, N);
StdDraw.setYscale(-1, N);
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++) if (!maze[i][j]) StdDraw.filledSquare(j, N - i - 1, .5);
StdDraw.setPenColor(StdDraw.RED);
for (int i = 0; i < N; i++)
for (int j = 0; j < N; j++) {
if (solution[i][j]) {
StdDraw.filledSquare(j, N - i - 1, .4);
}
}
StdDraw.setPenColor(StdDraw.GREEN);
StdDraw.filledSquare(colS, N - rowS - 1, .4);
StdDraw.setPenColor(StdDraw.YELLOW);
StdDraw.filledSquare(colE, N - rowE - 1, .4);
}
public static void main(String[] args) {
// scale of the coordinate system
StdDraw.setXscale(-1.0, 1.0);
StdDraw.setYscale(-1.0, 1.0);
double rx = 0.0, ry = 0.0;
double rx2 = rx + 0.10, ry2 = ry + 0.10;
double rx3 = rx2 + 0.10, ry3 = ry2 + 0.10;
double vx = 0.005, vy = 0.003;
double vx2 = vx + 0.05, vy2 = vy + 0.05;
double vx3 = vx2 + 0.05, vy3 = vy2 + 0.05;
double radius = 0.10;
// main loop
while (true) {
// bounce off wall according to law of elastic collision
if (Math.abs(rx + vx) > 1.0 - radius) vx = -vx;
if (Math.abs(ry + vy) > 1.0 - radius) vy = -vy;
if (Math.abs(rx2 + vx2) > 1.0 - radius) vx2 = -vx2;
if (Math.abs(ry2 + vy2) > 1.0 - radius) vy2 = -vy2;
if (Math.abs(rx3 + vx3) > 1.0 - radius) vx3 = -vx3;
if (Math.abs(ry3 + vy3) > 1.0 - radius) vy3 = -vy3;
// position
rx += vx;
ry += vy;
rx2 = vx2 / Math.tan(vy / vx);
ry2 = vy2 / Math.tan(vy / vx);
rx3 += vx3;
ry3 += vy3;
// clear
StdDraw.setPenColor(StdDraw.GRAY);
StdDraw.filledSquare(0, 0, 1.0);
// ball
StdDraw.setPenColor(StdDraw.BLUE);
StdDraw.filledCircle(rx, ry, radius);
// ball2
StdDraw.setPenColor(StdDraw.BLACK);
StdDraw.filledCircle(rx2, ry2, radius / 2);
// ball3
StdDraw.setPenColor(StdDraw.YELLOW);
StdDraw.filledCircle(rx3, ry3, radius / 2);
// display and pause for 20 ms
StdDraw.show(20);
}
}
/**
* Draws one square (and any pieces piled there) at coordinates x, y.
*
* @param highlight If true, highlights this square as a legal move.
*/
public void drawSquare(Deque<Integer> pile, double x, double y, boolean highlight) {
if (pile != null) {
if (highlight) {
StdDraw.setPenColor(VERY_LIGHT_BLUE);
} else {
StdDraw.setPenColor(LIGHT_BLUE);
}
StdDraw.filledSquare(x, y, 0.45);
x -= 0.2;
y -= 0.2;
for (int c : pile) {
StdDraw.setPenColor(c == FocusModel.BLACK ? java.awt.Color.BLACK : java.awt.Color.WHITE);
StdDraw.filledEllipse(x, y, 0.2, 0.1);
StdDraw.setPenColor(c == FocusModel.BLACK ? java.awt.Color.WHITE : java.awt.Color.BLACK);
StdDraw.ellipse(x, y, 0.2, 0.1);
x += 0.1;
y += 0.1;
}
}
}
