After reading the standard packet karel by means of the
packet-command (p) he can perform the following actions:
- start karel
Sets up the world, with Karel in the lower left corner
with his nose pointing to the north;
- turn right
Karel makes a right turn;
- turn left
Karel makes a left turn;
- move
Karel moves one corner forward in the direction of his nose;
- take beeper
Karel takes the beeper (if any) from the present
corner and puts it into his pocket;
- drop beeper
Karel takes a beeper from the limitless supply
in his pocket and leaves it at the present corner;
- stop
Makes an end to Karel and his world, lifting him from
the screen.