@Override
public boolean isPossibleMove(RobotMove action) {
int dir = action.getDir();
switch (dir) {
case 0:
return location.getNorth() != null;
case 1:
return location.getEast() != null;
case 2:
return location.getSouth() != null;
case 3:
return location.getWest() != null;
default:
return false;
}
}
@Override
public boolean performAction(RobotMove action) {
if (isPossibleMove(action)) {
int dir = action.getDir();
switch (dir) {
case 0:
location = location.getNorth();
break;
case 1:
location = location.getEast();
break;
case 2:
location = location.getSouth();
break;
case 3:
location = location.getWest();
break;
}
return true;
} else {
return false;
}
}
public String toString() {
return location.toString();
}
@Override
public int h() {
return location.manhattan(goal);
}