In Class: Tuesday January 17

If you want to try out the robot code, you can copy my codefile as a starting point, and then edit it to try out different commands, and run the robot using different mazes as starting points:

# copy over my codefile starting point, don't forget the dot at the end of this command
% cp ~newhall/public/cs21/robot/codefile .       

# edit codefile in emacs (or vim) to change the robot commands, 
then save and exit emacs
% emacs codefile                   

# run the robot using the commands you listed in codefile
% run_robot codefile 0 maze0

You can also try different mazes as staring points (maze0 - maze5), and try staring the robot facing a different direction (0, 1, 2, or 3):

% run_robot codefile 3 maze3          # start robot in maze3 facing WEST(3)

The set of robot commands you can add to a codefile include:

          MoveForward();        # move the robot
          TurnRight();
          TurnLeft();

          FacingWall()          # tests evaluate to true or false
          Outside()

Example codefile might look like:

          if ( FacingWall() ) {
                TurnLeft();
          }
          MoveForward();
          while ( FacingWall() ) {
                TurnLeft();
          }
          MoveForward();
          TurnRight();