public void move() {
int newRow = nextRow(row, direction);
int newColumn = nextColumn(column, direction);
if (maze.isValid(newRow, newColumn)) {
maze.updateRobot(row, column, -1);
row = newRow;
column = newColumn;
maze.updateRobot(row, column, +1);
visited.add(getPosition());
if (debug) {
maze.print();
}
}
}
public boolean canMove() {
int newRow = nextRow(row, direction);
int newColumn = nextColumn(column, direction);
return maze.isValid(newRow, newColumn);
}