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(This article was first published on <strong><a href="https://blog.revolutionanalytics.com/2018/10/gravedigger-in-r.html"> Revolutions</a></strong>, and kindly contributed to <a rel="nofollow" href="https://www.r-bloggers.com/">R-bloggers)</a> </div>
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<p>Need something to distract the kids while they're waiting to head out Trick-or-Treating? You could have them try out a <a rel="nofollow" href="https://lucidmanager.org/creepy-computer-games-in-r/" target="_blank">Creepy Computer Game in R</a>! Engineer and social scientist Dr Peter Provost translated one of the old BASIC games from the classic book <a rel="nofollow" href="https://usborne.com/browse-books/features/computer-and-coding-books/" target="_blank"><em>Creepy Computer Games</em></a> into R: just have them type in <a rel="nofollow" href="https://github.com/pprevos/r.prevos.net/blob/master/Rcade/gravedigger.R" target="_blank">this file</a> (and yes, they <em>do</em> need to type it character-by-character to get the full experience) and then source it into R to play the game. The goal is to move your character <code>*</code> to the exit at the SE corner of the graveyard populated by gravestones <code>+</code> while avoiding the skeletons <code>X</code>.</p>
<p><a rel="nofollow" href="https://lucidmanager.org/creepy-computer-games-in-r/" target="_blank"><img border="0" alt="Scary computer games" title="Scary computer games" src="https://revolution-computing.typepad.com/.a/6a010534b1db25970b022ad39cfe3a200d-800wi"></a></p>
<p>For extra credit, see if they can figure out the bug that causes the move counter to go down, instead of up. It might help to refer to the orginal BASIC sources — the book is online at the <a rel="nofollow" href="https://usborne.com/browse-books/features/computer-and-coding-books/" target="_blank">publisher's website</a> as a <a rel="nofollow" href="https://drive.google.com/file/d/0Bxv0SsvibDMTRUl3SFRONGN0MFk/view" target="_blank">PDF</a> here.</p>
<p><a rel="nofollow" href="https://drive.google.com/file/d/0Bxv0SsvibDMTRUl3SFRONGN0MFk/view" target="_blank"><img border="0" alt="Gravedigger" title="Gravedigger" src="https://revolution-computing.typepad.com/.a/6a010534b1db25970b022ad39cffef200d-800wi"></a></p>
<p>The Lucid Manager: <a rel="nofollow" href="https://lucidmanager.org/creepy-computer-games-in-r/" target="_blank">Celebrate Halloween with Creepy Computer Games in R</a></p>
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