# Help with Vacuum cleaner code

Printable View

• 12-03-2011, 03:28 PM
ALREEM
Help with Vacuum cleaner code
The Requirements are:

1.The machine should move randomly.
2.It should clean all the dirt and then stop.
3.The direction of the movement should be in a array-list, so each time the machine should choose randomly 3 orientation from the list as a direction example(N,N,S).
4. The machine will move according to the direction continually until it reach the edge then it should choose again.
5. The dirt should be in array-list and once the machine clean one dirt it should be removed from the list until all the dirt from the list be removed then stop.

The problem I faced that the machine when it reach on of the edges it stuck there and still be in the same position !!! I dont how how or where I can fix it !!

Code:

import java.util.*;

public class test {

private static String[][] board;
private static final int ROWS = 8;
private static final int COLUMNS = 8;
int moves = 0;
List<String> orientation = Arrays.asList(new String[]{"N", "E", "W", "S"});
List<String> choices = new ArrayList<String>(3);
//

public test() {
//String state = "d";
board = new String[ROWS][COLUMNS];
for (int i = 0; i < ROWS; i++) {
for (int j = 0; j < COLUMNS; j++) {
board[i][j] = " ";

}
}
board[4][4] = "d";
board[0][2] = "d";
board[4][7] = "d";
board[1][5] = "d";
board[6][6] = "d";
board[4][0] = "d";
}

public String toString() {
String r = "";
for (int i = 0; i < ROWS; i++) {

for (int j = 0; j < COLUMNS; j++) {
r += "[" + board[i][j] + "]";
}
r += "\n";
}
return r;
}

public int[] gostright(int x, int y) {
if (choices.contains("N")) {
x--;
if (x == -1) {
x = 0;
}

} else if (choices.contains("W")) {
y--;
if (y == -1) {
y = 0;
}

} else if (choices.contains("S")) {
x++;
if (x == 8) {
x = 7;
}
} else if (choices.contains("E")) {
y++;
if (y == 8) {
y = 7;
}
}
System.out.println("choise taste equal" + x + ":" + y);
return new int[]{x, y};
}

public boolean Wall(int x, int y) {

if (choices.contains("N") && y == 7) {
return false;
} else if (choices.contains("S") && y == 0) {
return false;
} else if (choices.contains("W") && x == 0) {
return false;
} else if (choices.contains("E") && x == 7) {
return false;
} else {
return true;
}
}

public int CountDirt() {
int count = 0;
for (int i = 0; i < ROWS; i++) {
for (int j = 0; j < COLUMNS; j++) {
if (board[i][j] == "d") {
count++;
}
}
}
// System.out.println("the found dirt " + count+" dirts");
return count;
}

public void Move() {
Collections.shuffle(orientation);
int nowX = 4, nowY = 4;
int counter = 0;
int strightCounter = 1;
int wallx = 0;
int wally = 0;
while (CountDirt() > 0) {
for (int i = 0; i < 3; i++) {
choices.add(orientation.get(i));
for (int x = 0; x < strightCounter; x++) {
for (int y = 0; y < strightCounter; y++) {

Wall(x,y);
System.out.println("Wall" + x + ":" + y);
board[nowX][nowY] = "1";
int[] pos = gostright(nowX, nowY);
nowX = pos[0];
nowY = pos[1];
System.out.println("" + nowX + ":" + nowY);
System.out.println("nowX and nowY" + board[nowX][nowY]);
board[nowX][nowY] = "#";
moves++;
System.out.println(toString());
System.out.println(orientation.get(i));
System.out.println("Choices " + choices);
System.out.println("# move" + moves);
}
}
counter++;
System.out.println("CountDirt()==" + CountDirt());

}
choices.clear();

}

}

public static void main(String[] args) {
test nnn = new test();
System.out.println("The Vacuum Cleaner starting to clean the room");
System.out.println(nnn.toString());
nnn.Move();
System.out.println("Mission is done, the room is clean.");
}
}

I hope its clear for you, looking for your reply.
• 12-03-2011, 03:52 PM
Fubarable
Re: Help with Vacuum cleaner code
• 12-03-2011, 06:39 PM
ALREEM
Re: Help with Vacuum cleaner code
stackoverflow.com: move-random-matrix-88

^That post is from my project partner.

We are still looking for help.