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Karel the Robot (difficulty: beginner)

Author: theCalcaholic

Description

In this challenge, you take control over Karel, a little robot, which has to solve various tasks.

karel-screenshot

Concepts and libraries you should be familiar with:

  • functions (limited understanding sufficient)
  • loops (task 02 and later)
  • virtual environments (venv) (recommended, not required)

Setup

The following instructions assume that you are currently in the beginner/karel directory.

Linux

Install the package python3-tk. For example, on Ubuntu:

apt install python3-tk

Windows

Nothing to do

All challenges require the essentials to be set up!

Run

Linux

Run the karel script from this repositories bin directory (double clicking it should work as well):

bin/karel.sh

Windows

Run the karel script from this repositories bin directory (double clicking it should work as well):

bin/karel.bat

A dialog will open, showing you all the Karel tasks. Select the one you want to run and confirm. Now you will be presented two windows: One shows the state of the map after you have solved the task (Karel Goal) and the other one shows the solution runner, where you can see your script in action.

Task

You will find multiple python scripts in the solutions folder. These act as solution templates and contain further instructions on how to solve each task.

Within all solutions, you are given access to a number of functions which control the behaviour of Karel the robot:

Karel Commands
move() right_is_clear() facing_east()
turn_left() right_is_blocked() not_facing_east()
put_beeper() beepers_present() facing_west()
pick_beeper() no_beepers_present() not_facing_west()
front_is_clear() beepers_in_bag() facing_south()
front_is_blocked() no_beepers_in_bag() not_facing_south()
left_is_clear() facing_north() paint_corner(color)
left_is_blocked() not_facing_north() corner_color_is(color)

For most tasks, only a subset of these commands will be required. This subset will usually be explained within the solution template.

Run the program

After you have written your code you first need to run (and save) it in your programming software before you can open and run the visual game.

Further information on Karel (and more examples) can be found here

GLHF!