Copy the permalink and press cancel, or replace by new one and press Update.

Update Cancel

Create your own worlds!

If you want to share your world (and corresponding challenges) with others, save it to a file, or better yet, save everything using a permalink (see button at top) and send it to Andre.Roberge@gmail.com.

• Toggle size
• Robot
  • Add robot
  • Position(s)
  • Turn
  • Tokens
• Walls
• Objects
• Goal
  • Robot
  • Walls
  • Objects
  • No tokens
  • No other objects

To save the complete content (current state of the world, content of the code editor and, if programming using Python, content of the library), use the permalink button at the top. This will create a permalink which can be saved by copying it and pasting it in a location of your choice.

Reverses the previous step.

Erase trace Erases the trace left by Reeborg. This can be useful to focus on what happens after a program is paused.

Collaboration Tool which permits collaboration with one or more other user using Mozilla's TogetherJS.

Save program Saves the content of the editor in a file.

Import a program Opens a local file and use its content to replace the content of the Code editor.

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Python only

Save the library Saves the content of the library in a file.

Import a library Opens a file and use its content to replace the current content of the Library.

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Javascript only

"Lint" Uses JSHint to see if any syntax errors are present and, if so, indicate it in the editor.

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CoffeeScript only

Translate CoffeeScript For CoffeeScript programming only.
Translates the CoffeeScript code in the editor into Javascript and shows the result in the Diary.

Discussions, questions, comments about Reeborg take place here. Bug reports are welcome!

About Reeborg
Contribute

About Reeborg

Inspired by Guido van Robot, itself inspired by the original Karel the Robot created by Richard Pattis, Reeborg first appeared in RUR-PLE, a program I created to learn Python, picking up programming as a hobby.

Reeborg is there to guide you in learning computer programming in either Python or Javascript. Why Python? Because its syntax is the simplest and encourages good writing habits by enforcing blocks of code to be indented. Why Javascript? The main reason is because it is the native language for programming web browsers. Since Reeborg's program is written in Javascript, you will be able, after going through enough lessons, to change the way that Reeborg behaves, using the full power of Javascript and perhaps make Reeborg do things that I never thought could be possible. Possible changes with Python as a language of choice might be a bit more limited, but it nonetheless is my recommendation for your first language.

I hope you enjoy learning computer programming with Reeborg.

Feel free to contact me at Andre.Roberge@gmail.com

Reeborg is free and will remain free to use and to share under a Creative Commons License. If you are using it to teach programming to students, you might want to make a copy of this site on a local server. Regardless, I would really appreciate if you would contact me as I would like to know where Reeborg's World is used.

If you find this site so useful and you want to do something to thank me, you have two choices:

• You can give me $100,000; small denominations preferred.
• You can pay it forward by doing something nice to someone else.

The choice is yours :-)

Contribute

I am just a self-taught programmer, with no training in web design, graphics, etc. I would gladly welcome any suggestions or contributions to

• Improve the usability of this site.
• Make better looking robots.
• New worlds, examples and challenges.
• Corrections to the existing content, including fixing typos.
• etc.

Bug reports are welcome!

My medium-term plans include:

• Adding various tutorials including some on making games using the html canvas

Longer term plans include:

• Implementing Reeborg's world for other languages (Scheme, ...) as long as it can be done within a browser with no server-side code running.
• Enlisting contributors to translate tutorials into languages other than English or French
• Investigating something like Ruby-warrior in Javascript
• Investigating the possibility of porting From nand to Tetris to the web using Javascript

Audio samples from freesound, all chosen (and modified) from Creative Commons license 0 submissions.