Command reference

Below are all commands available to students in the Robot simulator. Use from robot import * in your program, or import only the names you need.

A task is considered complete if, after the program finishes, Robot is in the home cell, all cells marked for painting are painted, and the expected number has been printed in every cell that expects number output.

Choosing a task or creating a field

task(task_id): Starts the selected task.
field(width=8, height=6): Opens a grid of the given size without tying it to a task. Width from 1 to 25, height from 1 to 15. Robot starts at the top-left; the goal is the bottom-right.

Action commands

move_right(): Moves the Robot one cell to the right.
move_left(): Moves the Robot one cell to the left.
move_up(): Moves the Robot one cell up.
move_down(): Moves the Robot one cell down.
paint(): Paints the current cell.
printn(value): Prints an integer in the current cell.

Environment analysis

is_free_left(): Returns True if there is no wall on the left.
is_free_right(): Returns True if there is no wall on the right.
is_free_up(): Returns True if there is no wall above.
is_free_down(): Returns True if there is no wall below.
is_wall_left(): Returns True if there is a wall on the left.
is_wall_right(): Returns True if there is a wall on the right.
is_wall_up(): Returns True if there is a wall above.
is_wall_down(): Returns True if there is a wall below.
is_cell_painted(): Returns True if the current cell is painted.
is_cell_not_painted(): Returns True if the current cell is not painted.
pol(): Returns the pollution value of the current cell.