public static ArrayList getConnectedGates(Gate g) {
ArrayList v = new ArrayList();
for (int i = 0; i < g.getOutputCount(); i++) {
ArrayList cons = null;
Node n = null;
if (g instanceof LED) {
n = g.getInputNode(0);
if (n.isConnected()) {
v.add(n.getParent());
}
} else {
n = g.getOutputNode(i); // get outputnode of the gate
cons = n.getConnections(); // get connections from
// outputnode
for (Iterator j = cons.iterator(); j.hasNext(); ) {
Node n1 = (Node) j.next();
if (!v.contains(n1.getParent())) {
v.add(n1.getParent()); // add the inputnode node's parent
}
}
}
}
return v;
}
/** Simulation of Duck, Duck, Goose with a circularly linked list */
public static void main(String[] args) {
CircleList C = new CircleList();
int N = 3; // number of iterations of the game
Node it; // the player who is it
Node goose; // the goose
Random rand = new Random();
rand.setSeed(System.currentTimeMillis()); // use current time as seed
// The players...
String[] names = {"Bob", "Jen", "Pam", "Tom", "Ron", "Vic", "Sue", "Joe"};
for (int i = 0, max = names.length; i < max; i++) {
C.add(new Node(names[i], null));
C.advance();
}
for (int i = 0; i < N; i++) { // play Duck, Duck, Goose N times
DuckDuckGoose.output.println("Playing Duck, Duck, Goose for " + C.toString());
it = C.remove();
DuckDuckGoose.output.println(it.getElement() + " is it.");
while (rand.nextBoolean() || rand.nextBoolean()) { // march around circle
C.advance(); // advance with probability 3/4
DuckDuckGoose.output.println(C.getCursor().getElement() + " is a duck.");
}
goose = C.remove();
DuckDuckGoose.output.println(goose.getElement() + " is the goose!");
if (rand.nextBoolean()) {
DuckDuckGoose.output.println("The goose won!");
C.add(goose); // add the goose back in its old place
C.advance(); // now the cursor is on the goose
C.add(it); // The "it" person will be it again in the next round
} else {
DuckDuckGoose.output.println("The goose lost!");
C.add(it); // add who's "it" back at the goose's place
C.advance(); // now the cursor is on the "it" person
C.add(goose); // The goose will be "it" in the next round
}
}
DuckDuckGoose.output.println("Final circle is " + C.toString());
}