diff --git a/snake/fil-td.cls b/snake/fil-td.cls
new file mode 100755
index 0000000000000000000000000000000000000000..b0a3c37ca29af1a9f1f5ddb6fb729573b9eb7fbf
--- /dev/null
+++ b/snake/fil-td.cls
@@ -0,0 +1,520 @@
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% FIL@Université de Lille class
+% original file adapted and further developed by
+% Oliver Irwin <oliver.irwin@univ-lille.fr>
+% % v0.1.1, 2024-04-08
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% original file:
+% ens-ustl.sty
+% LaTeX Package
+% Version 0.26 (1997-12-19)
+%
+% Authors:
+% Bruno Beaufils <beaufils@lifl.fr>
+%
+% Class license:
+% LPPL v1.3c (http://www.latex-project.org/lppl)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% -------------------------------------------------------------------------
+% CLASS PRESENTATION
+% -------------------------------------------------------------------------
+\typeout{%
+ *** Package: `fil-td' $Revision: 0.1.1 $ -- O. IRWIN ***}
+
+% -------------------------------------------------------------------------
+% CLASS DEFINITION AND PARAMETERS
+% -------------------------------------------------------------------------
+
+\NeedsTeXFormat{LaTeX2e}
+\newcommand{\classname}{fil-td}
+
+\ProvidesClass{\classname}[2024/04/08 - TD FIL v0.1.1 FIL@ULILLE]
+\providecommand{\baseclass}{article}
+\RequirePackage{etoolbox}
+
+%%% LANGUAGE SELECTION
+
+\newbool{english}
+\newbool{french}
+\booltrue{french}
+\newbool{nologo}
+\newbool{nofluff}
+\newbool{showsolution}
+\newbool{bw}
+
+\DeclareOption{english}{\booltrue{english}}
+\DeclareOption{french}{\booltrue{french}}
+\DeclareOption{nologo}{\booltrue{nologo}}
+\DeclareOption{nofluff}{\booltrue{nofluff}}
+\DeclareOption{showsolution}{\booltrue{showsolution}}
+\DeclareOption{bw}{\booltrue{bw}}
+
+%%% EXTRA OPTIONS
+
+\DeclareOption*{\PassOptionsToClass{\CurrentOption}{\baseclass}}
+
+\ifbool{english}{% Required to change language for document elements
+ \typeout{English mode selected}
+ \PassOptionsToClass{english}{\baseclass}
+ }{}
+
+\ifbool{french}{
+ \typeout{French mode selected}
+ \PassOptionsToClass{french}{\baseclass}
+ }{}
+
+%%% PROCESS OPTIONS
+\ProcessOptions*
+
+%%% LOAD BASE
+\LoadClass[11pt, a4paper]{\baseclass}
+
+% -------------------------------------------------------------------------
+% CLASS OPTIONS
+% -------------------------------------------------------------------------
+
+% -------------------------------------------------------------------------
+% REQUIRED PACKAGES
+% -------------------------------------------------------------------------
+
+\RequirePackage{lmodern}
+\RequirePackage{FiraMono}
+
+\RequirePackage[top=1.5cm,bottom=2cm,left=1.5cm,right=1.5cm]{geometry}
+
+\RequirePackage{graphicx}
+\RequirePackage[usenames,dvipsnames]{xcolor}
+\RequirePackage{ifthen}
+\RequirePackage{fontawesome5}
+\RequirePackage{comment}
+\RequirePackage{minted}
+\RequirePackage{fancyhdr}
+\RequirePackage{babel}
+\RequirePackage{hyperref}
+
+\RequirePackage{tcolorbox}
+\tcbuselibrary{most, minted}
+
+\RequirePackage{fontspec}
+\setmainfont{Marianne}
+\setsansfont{Marianne}
+\setmonofont{Fira Mono}[Contextuals=Alternate]
+
+\definecolor{ulille-darkblue}{HTML}{000037}
+\definecolor{ulille-indigo}{HTML}{5862ED}
+\definecolor{ulille-lightblue}{HTML}{7ABAFF}
+\definecolor{ulille-darkgreen}{HTML}{002D2D}
+\definecolor{ulille-green}{HTML}{32A68C}
+\definecolor{ulille-lightgreen}{HTML}{89E0B1}
+\definecolor{ulille-red}{HTML}{FC535C}
+\definecolor{ulille-brown}{HTML}{2D0505}
+\definecolor{ulille-pink}{HTML}{FFB4D2}
+\definecolor{ulille-orange}{HTML}{FF6941}
+\definecolor{ulille-yellow}{HTML}{FFD24B}
+\definecolor{ulille-beige}{HTML}{FAF0E1}
+\definecolor{ulille-lightgrey}{HTML}{EDEDED}
+\definecolor{ulille-darkgrey}{HTML}{63656A}
+
+% -------------------------------------------------------------------------
+% HELPERS
+% -------------------------------------------------------------------------
+
+\NewDocumentCommand{\@getLanguageSymbol}{ m }{%
+ \directlua{
+ local s_tbl = {
+ ["android"] = "\\faAndroid",
+ ["angular"] = "\\faAngular",
+ ["apple"] = "\\faApple",
+ ["bash"] = "\\faTerminal",
+ ["bootstrap"] = "\\faBootstrap",
+ ["css"] = "\\faCss3*",
+ ["docker"] = "\\faDocker",
+ ["git"] = "\\faGit",
+ ["html"] = "\\faHtml5",
+ ["java"] = "\\faJava",
+ ["js"] = "\\faJs",
+ ["latex"] = "\\LaTeX",
+ ["less"] = "\\faLess",
+ ["markdown"] = "\\faMarkdown",
+ ["node"] = "\\faNode",
+ ["php"] = "\\faPhp",
+ ["python"] = "\\faPython",
+ ["react"] = "\\faReact",
+ ["rust"] = "\\faRust",
+ ["sass"] = "\\faSass",
+ ["tex"] = "\\TeX",
+ ["sql"] = "\\faDatabase",
+ ["vue"] = "\\faVuejs",
+ }
+ local val = s_tbl["\luaescapestring{\unexpanded{#1}}"]
+ if (val) then
+ tex.print(val)
+ else
+ tex.print("\\faCode")
+ end
+ }
+}
+
+% -------------------------------------------------------------------------
+% DOCUMENT THEME
+% -------------------------------------------------------------------------
+
+\colorlet{@solutionframecol}{\ifbool{bw}{ulille-darkgrey}{ulille-indigo}}
+
+\NewDocumentCommand{\solutionframecol}{ m }{%
+ \colorlet{@solutionframecol}{#1}
+}
+
+% -------------------------------------------------------------------------
+% FIRST PAGE HEADER
+% -------------------------------------------------------------------------
+
+% Set variables
+
+\NewDocumentCommand{\@school}{}{}
+\NewDocumentCommand{\@course}{}{}
+\NewDocumentCommand{\@teacher}{}{}
+\NewDocumentCommand{\@subject}{}{}
+\RenewDocumentCommand{\@title}{}{}
+
+% User commands
+\NewDocumentCommand{\school}{ m }{%
+ \RenewDocumentCommand{\@school}{}{#1}%
+}
+\NewDocumentCommand{\course}{ m }{%
+ \RenewDocumentCommand{\@course}{}{#1}%
+}
+\NewDocumentCommand{\teacher}{ m }{%
+ \RenewDocumentCommand{\@teacher}{}{#1}%
+}
+\NewDocumentCommand{\subject}{ m }{%
+ \RenewDocumentCommand{\@subject}{}{%
+ \begin{tabular}{c}#1\end{tabular}%
+ }%
+}
+\RenewDocumentCommand{\title}{ m }{%
+ \RenewDocumentCommand{\@title}{}{%
+ \begin{tabular}{c}#1\end{tabular}%
+ }%
+}
+
+\global\let\author\relax
+\global\let\@author\@empty
+
+\newcounter{@yearbefore}
+\setcounter{@yearbefore}{\year}
+\newcounter{@yearafter}
+\setcounter{@yearafter}{\year}
+
+\RenewDocumentCommand{\@date}{}{%
+ \ifthenelse{\month < 7}%
+ {\addtocounter{@yearbefore}{-1}}
+ {\addtocounter{@yearafter}{1}}
+ \the@yearbefore--\the@yearafter%
+}
+
+\fancypagestyle{firststyle}{%
+ \newgeometry{top=2.5cm,bottom=2cm,left=1.5cm,right=1.5cm}
+ \fancyhf{}
+ \fancyhead[C]{\large\@subject\par}
+ \fancyhead[L]{\ifbool{nologo}{}{\hspace*{-1.25cm}\includegraphics[scale=0.175]{logo-CRIStAL}}}
+ \fancyhead[R]{\raggedleft\par\@date\par\@course\par\@teacher}
+ %\fancyfoot[C]{\thepage}
+ \renewcommand{\headrulewidth}{0pt} % removes horizontal header line
+}
+
+\RenewDocumentCommand{\maketitle}{}{%
+ \begin{center}
+ \framebox{~\Large\bfseries\sffamily\@title~}
+ \bigskip
+ \hrule height 1pt
+ \medskip
+ \end{center}
+ \thispagestyle{firststyle}
+ % \ifbool{nologo}{%
+ % \begin{minipage}{0.2\textwidth}
+ % \@date
+ % \end{minipage}
+ % \begin{minipage}{.5\textwidth}
+ % \centering
+ % \large\@subject
+ % \end{minipage}
+ % \begin{minipage}{.25\textwidth}
+ % \raggedleft
+ % \@course
+ % \par
+ % \@teacher
+ % \end{minipage}
+ % \par
+ % \begin{center}
+ % \framebox{~\Large\bfseries\sffamily\@title~}
+ % \end{center}
+ % \smallskip
+ % \hrule
+ % \medskip
+ % }{%
+ % \begin{center}
+ % \hspace*{-1.5cm}
+ % \begin{minipage}[][][c]{.33\textwidth}
+ % \centering
+ % \IfFileExists{logo_FIL.pdf}{%
+ % \includegraphics[width=\textwidth]{logo_FIL.pdf}
+ % }{%
+ % \ClassWarningNoLine{\classname}{No logo file found -- place
+ % `logo_FIL.pdf` file in folder or use `nologo` class option} }
+ % \end{minipage}
+ % \hfill
+ % \begin{minipage}{.25\textwidth}
+ % \centering
+ % \large\@subject
+ % \end{minipage}\framebox{~\Large\bfseries\sffamily\@title~}
+ % \hfill
+ % \begin{minipage}{.25\textwidth}
+ % \raggedleft
+ % \@date
+ % \par
+ % \@course
+ % \par
+ % \@teacher
+ % \end{minipage}
+ % \par
+ % \framebox{~\Large\bfseries\sffamily\@title~}
+ % \end{center}
+ % \smallskip
+ % \hrule
+ % \medskip
+ % }
+}
+
+
+
+% -------------------------------------------------------------------------
+% DOCUMENT ENVIRONMENTS
+% -------------------------------------------------------------------------
+
+% Set counters
+
+\newcounter{@exercise}[section]
+\newcounter{@question}[@exercise]
+\newcounter{@subquestion}[@question]
+
+% Set variables
+
+\NewDocumentCommand{\@exercisename}{}{%
+ \ifbool{english}{%
+ Exercise%
+ }{%
+ Exercice%
+ }
+}
+
+\NewDocumentCommand{\@questionname}{}{%
+ Q.%
+}
+
+\NewDocumentCommand{\@subquestionname}{}{%
+ Q.%
+}
+
+\NewDocumentCommand{\@solutionname}{}{%
+ Solution%
+}
+
+% User commands
+
+\NewDocumentCommand{\exercisename}{ m }{%
+ \RenewDocumentCommand{\@exercisename}{}{#1}
+}
+
+\NewDocumentCommand{\questionname}{ m }{%
+ \RenewDocumentCommand{\@questionname}{}{#1}
+}
+
+\NewDocumentCommand{\subquestionname}{ m }{%
+ \RenewDocumentCommand{\@subquestionname}{}{#1}
+}
+
+\NewDocumentCommand{\solutionname}{ m }{%
+ \RenewDocumentCommand{\@solutionname}{}{#1}
+}
+
+% Environments
+
+\NewDocumentEnvironment{exercise}{ s O{} O{\@exercisename} }{%
+ \sffamily\bfseries\underline{%
+ #3%
+ \IfBooleanF{#1}{%
+ \stepcounter{@exercise}%
+ \the@exercise%
+ }%
+ }
+ : #2\\
+ \mdseries\rmfamily
+}{}
+
+\NewDocumentEnvironment{exercise*}{ O{} O{\@exercisename} }{%
+ \begin{exercise}*[#1][#2]
+ }{
+ \end{exercise}
+ }
+
+\NewDocumentEnvironment{question}{ s O{} O{\@questionname} }{%
+ \noindent
+ \sffamily\bfseries%
+ #3%
+ \IfBooleanF{#1}{%
+ \stepcounter{@question}%
+ ~\the@question%
+ } #2
+ \mdseries\rmfamily
+}{~\\}
+
+\NewDocumentEnvironment{question*}{ O{} O{\@questionname} }{%
+ \begin{question}*[#1][#2]
+ }{
+ \end{question}
+ }
+
+ \NewDocumentEnvironment{subquestion}{ s O{} O{\@subquestionname} }{%
+ ~\\\noindent
+ \sffamily\bfseries%
+ #3%
+ \IfBooleanF{#1}{%
+ \stepcounter{@subquestion}%
+ ~\the@question.\the@subquestion%
+ } #2
+ \mdseries\rmfamily
+ }{~\\}
+
+ \NewDocumentEnvironment{subquestion*}{ O{} O{\@subquestionname} }{%
+ \begin{subquestion}*[#1][#2]
+ }{
+ \end{subquestion}
+ }
+
+ \NewDocumentEnvironment{solutionstyle}{ O{} }{%
+ \begin{tcolorbox}[
+ title=\ifbool{nofluff}{\@solutionname}{\faCheck{} \@solutionname},
+ fonttitle=\sffamily\bfseries,
+ left=3pt,
+ right=3pt,
+ top=2pt,
+ bottom=2pt,
+ #1,
+ breakable,
+ enhanced,
+ colframe=@solutionframecol]
+ }{%
+ \end{tcolorbox}
+ }
+
+% Handle showing of solutions only if option passed
+
+ \ifbool{showsolution}{\NewDocumentEnvironment{solution}{ O{}
+ }{\begin{solutionstyle}[#1]}{\end{solutionstyle}}}{
+\excludecomment{solution}
+}
+
+% -------------------------------------------------------------------------
+% CODE ENVIRONMENTS
+% -------------------------------------------------------------------------
+
+\NewDocumentCommand{\@codeblockname}{}{%
+ Code%
+}
+
+\NewDocumentCommand{\codeblockname}{ m }{%
+ \RenewDocumentCommand{\@codeblockname}{}{#1}%
+}
+
+\NewTCBListing{codeblock}{ m O{} }{%
+ colback=ulille-lightgrey,
+ colframe=ulille-darkgrey!55!black,
+ title=\ifbool{nofluff}{\@codeblockname}{{\small \@getLanguageSymbol{#1}} \@codeblockname{}},
+ fonttitle=\sffamily\bfseries,
+ left=3pt,
+ right=3pt,
+ top=2pt,
+ bottom=2pt,
+ listing engine=minted,
+ minted language=#1,
+ minted options={autogobble,breaklines},
+ listing only,
+ breakable,
+ enhanced,
+ #2%
+}
+
+\NewTCBInputListing{\codefile}{ m m O{} }{%
+ colback=ulille-lightgrey,
+ colframe=ulille-darkgrey!55!black,
+ title=\ifbool{nofluff}{\@codeblockname}{{\small \@getLanguageSymbol{#2}} \@codeblockname{}},
+ fonttitle=\sffamily\bfseries,
+ left=3pt,
+ right=3pt,
+ top=2pt,
+ bottom=2pt,
+ listing engine=minted,
+ minted language=#2,
+ minted options={autogobble, breaklines},
+ listing only,
+ listing file=#1,
+ breakable,
+ enhanced,
+ #3%
+}
+
+\NewTotalTCBox{\cmd}{ O{ulille-darkgrey} v }{%
+ enhanced,
+ nobeforeafter,
+ tcbox raise base,
+ boxrule=0.4pt,
+ top=0mm,
+ bottom=0mm,
+ right=0mm,
+ left=4mm,
+ arc=1pt,
+ boxsep=2pt,
+ before upper={\vphantom{dlg}},
+ colframe=#1!50!black,
+ coltext=#1!25!black,
+ colback=#1!10!white,
+ overlay={%
+ \begin{tcbclipinterior}
+ \fill[#1!75!blue!50!white] (frame.south west) rectangle
+ node[text=white,font=\sffamily\bfseries\tiny,rotate=90] {CMD}
+ ([xshift=4mm]frame.north west);
+ \end{tcbclipinterior}
+ }%
+}{\ttfamily \small #2}
+
+\NewTotalTCBox{\file}{ O{ulille-lightblue} v }{
+ enhanced,
+ nobeforeafter,
+ tcbox raise base,
+ boxrule=0.4pt,
+ top=0mm,
+ bottom=0mm,
+ right=0mm,
+ left=4mm,
+ arc=1pt,
+ boxsep=2pt,
+ before upper={\vphantom{dlg}},
+ colframe=#1!50!black,
+ coltext=#1!25!black,
+ colback=#1!10!white,
+ overlay={
+ \begin{tcbclipinterior}
+ \fill[#1!75!blue!50!white] (frame.south west) rectangle
+ node[text=white,font=\sffamily\bfseries\tiny,rotate=90] {FILE}
+ ([xshift=4mm]frame.north west);
+ \end{tcbclipinterior}
+ }%
+}{\ttfamily \small #2}
+
+
+\endinput
diff --git a/snake/fonts/DroidSansMono/Apache License.txt b/snake/fonts/DroidSansMono/Apache License.txt
new file mode 100755
index 0000000000000000000000000000000000000000..989e2c59e973a05cfbfe9de678b7f2af777b0713
--- /dev/null
+++ b/snake/fonts/DroidSansMono/Apache License.txt
@@ -0,0 +1,201 @@
+Apache License
+ Version 2.0, January 2004
+ http://www.apache.org/licenses/
+
+ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+ 1. Definitions.
+
+ "License" shall mean the terms and conditions for use, reproduction,
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+ any Contribution intentionally submitted for inclusion in the Work
+ by You to the Licensor shall be under the terms and conditions of
+ this License, without any additional terms or conditions.
+ Notwithstanding the above, nothing herein shall supersede or modify
+ the terms of any separate license agreement you may have executed
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+ 6. Trademarks. This License does not grant permission to use the trade
+ names, trademarks, service marks, or product names of the Licensor,
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+
+ 7. Disclaimer of Warranty. Unless required by applicable law or
+ agreed to in writing, Licensor provides the Work (and each
+ Contributor provides its Contributions) on an "AS IS" BASIS,
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+ 8. Limitation of Liability. In no event and under no legal theory,
+ whether in tort (including negligence), contract, or otherwise,
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+ END OF TERMS AND CONDITIONS
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+ APPENDIX: How to apply the Apache License to your work.
+
+ To apply the Apache License to your work, attach the following
+ boilerplate notice, with the fields enclosed by brackets "[]"
+ replaced with your own identifying information. (Don't include
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+ Unless required by applicable law or agreed to in writing, software
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\ No newline at end of file
diff --git a/snake/fonts/DroidSansMono/DroidSansMono.ttf b/snake/fonts/DroidSansMono/DroidSansMono.ttf
new file mode 100755
index 0000000000000000000000000000000000000000..a007071944f7c90020e798eea53b10065e2b45a5
Binary files /dev/null and b/snake/fonts/DroidSansMono/DroidSansMono.ttf differ
diff --git a/snake/fonts/Marianne/.uuid b/snake/fonts/Marianne/.uuid
new file mode 100755
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diff --git a/snake/fonts/Spectral/SIL Open Font License.txt b/snake/fonts/Spectral/SIL Open Font License.txt
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+Copyright 2017 Production Type (info@productiontype.com)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at: http://scripts.sil.org/OFL
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide development of collaborative font projects, to support the font creation efforts of academic and linguistic communities, and to provide a free and open framework in which fonts may be shared and improved in partnership with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and redistributed freely as long as they are not sold by themselves. The fonts, including any derivative works, can be bundled, embedded, redistributed and/or sold with any software provided that any reserved names are not used by derivative works. The fonts and derivatives, however, cannot be released under any other type of license. The requirement for fonts to remain under this license does not apply to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright Holder(s) under this license and clearly marked as such. This may include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting, or substituting -- in part or in whole -- any of the components of the Original Version, by changing formats or by porting the Font Software to a new environment.
+
+"Author" refers to any designer, engineer, programmer, technical writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining a copy of the Font Software, to use, study, copy, merge, embed, modify, redistribute, and sell modified and unmodified copies of the Font Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components, in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled, redistributed and/or sold with any software, provided that each copy contains the above copyright notice and this license. These can be included either as stand-alone text files, human-readable headers or in the appropriate machine-readable metadata fields within text or binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font Name(s) unless explicit written permission is granted by the corresponding Copyright Holder. This restriction only applies to the primary font name as presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software shall not be used to promote, endorse or advertise any Modified Version, except to acknowledge the contribution(s) of the Copyright Holder(s) and the Author(s) or with their explicit written permission.
+
+5) The Font Software, modified or unmodified, in part or in whole, must be distributed entirely under this license, and must not be distributed under any other license. The requirement for fonts to remain under this license does not apply to any document created using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER DEALINGS IN THE FONT SOFTWARE.
\ No newline at end of file
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diff --git a/snake/fonts/Spectral/Spectral-SemiBold.ttf b/snake/fonts/Spectral/Spectral-SemiBold.ttf
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diff --git a/snake/grid.tex b/snake/grid.tex
new file mode 100755
index 0000000000000000000000000000000000000000..c0489fc7d67ba0b2f4146c6293ac03fbc355a672
--- /dev/null
+++ b/snake/grid.tex
@@ -0,0 +1,33 @@
+\documentclass[tikz]{standalone}
+
+\usepackage{tikz}
+
+\begin{document}
+\begin{tikzpicture}
+ \draw[step=0.5cm,gray, very thin] (0, 0) grid (15, 10);
+ \fill[green!40!white, draw=green!40!black] (10, 4) rectangle (10.5, 4.5);
+ \fill[green!40!white, draw=green!40!black] (10.5, 4) rectangle (11, 4.5);
+ \fill[green!40!white, draw=green!40!black] (9.5, 4) rectangle (10, 4.5);
+ \fill[green!40!white, draw=green!40!black] (9, 4) rectangle (9.5, 4.5);
+ \fill[green!40!white, draw=green!40!black] (10.5, 4.5) rectangle (11, 5);
+
+ \fill[red!40!white] (7, 7) rectangle (7.5, 7.5);
+ \foreach \y in {0,...,19}
+ {
+ \pgfmathtruncatemacro{\ys}{19 - \y}
+ \node (b\y) at (-0.25, 0.5*\y + 0.25) {\small\ys};
+ };
+
+ \foreach \x in {0,...,29}
+ {
+ \node (a\x) at (0.5*\x + 0.25, 10.25) {\small\x};
+ }
+
+\end{tikzpicture}
+
+\end{document}
+
+%%% Local Variables:
+%%% mode: latex
+%%% TeX-master: t
+%%% End:
diff --git a/snake/install-linux.sh b/snake/install-linux.sh
new file mode 100755
index 0000000000000000000000000000000000000000..1ff0414d62bc3c4be5c3b9934ed73023370d8930
--- /dev/null
+++ b/snake/install-linux.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+ROOT_DIR=$HOME
+INSTALL_FONT_DIR=$ROOT_DIR/.fonts
+
+echo "copying font files to $INSTALL_FONT_DIR"
+
+mkdir -vp $INSTALL_FONT_DIR
+cp -ru fonts/* $INSTALL_FONT_DIR
+fc-cache
diff --git a/snake/logo-CRIStAL.pdf b/snake/logo-CRIStAL.pdf
new file mode 100644
index 0000000000000000000000000000000000000000..55e7308f857f345063e2845acfadd7cd7839eaba
Binary files /dev/null and b/snake/logo-CRIStAL.pdf differ
diff --git a/snake/preamble_fr.tex b/snake/preamble_fr.tex
new file mode 100644
index 0000000000000000000000000000000000000000..f0841b3639b63bf725613af4bf94a7bff45a1385
--- /dev/null
+++ b/snake/preamble_fr.tex
@@ -0,0 +1,66 @@
+\usepackage{footnote}
+\usepackage{cleveref}
+\usepackage{titlesec}
+
+\newcounter{step}[section]
+\titleclass{\step}{straight}[\part]
+\titleformat{\step}[hang]
+ {\normalfont\sffamily\Large\bfseries}{\stepcounter{section}Étape~\thesection}{0em}{ - }
+\titlespacing*{\step}{0pt}{3.5ex plus 1ex minus .2ex}{2.3 ex plus .2ex}
+
+\crefname{step}{étape}{étapes}
+\crefdefaultlabelformat{#2\bfseries\sffamily{\textup{#1}}#3}
+
+\RenewDocumentCommand{\thefootnote}{}{%
+ \textcolor{ulille-green}{\bfseries\arabic{footnote}}
+}
+
+\makeatletter
+\NewDocumentCommand{\footnoteref}{ O{} }{%
+ \protected@xdef\@thefnmark{\ref{#1}}\@footnotemark%
+}
+\makeatother
+
+\newtcolorbox{ideablock}[1][]{%
+ colback=white,
+ colframe=ulille-orange,
+ title={\small \faLightbulb[regular]} Aide,
+ fonttitle=\sffamily\bfseries,
+ left=3pt,
+ right=3pt,
+ top=2pt,
+ bottom=2pt,
+ #1%
+}
+
+\newtcolorbox{objectiveblock}[1][]{%
+ colback=white,
+ colframe=ulille-green,
+ title={\small \faBullseye} Objectifs,
+ fonttitle=\sffamily\bfseries,
+ left=3pt,
+ right=3pt,
+ top=2pt,
+ bottom=2pt,
+ #1%
+}
+
+\NewDocumentCommand{\descr}{ m }{%
+ \bfseries
+ \textcolor{ulille-orange}{#1}%
+ \normalfont%
+}
+
+\NewDocumentCommand{\emphase}{ m }{%
+ \bfseries%
+ \ttfamily%
+ \textcolor{ulille-brown}{#1}%
+ \normalfont%
+}
+
+
+%%% Local Variables:
+%%% mode: LaTeX
+%%% TeX-master: "snake_fr"
+%%% TeX-engine: luatex
+%%% End:
diff --git a/snake/pyproject.toml b/snake/pyproject.toml
new file mode 100644
index 0000000000000000000000000000000000000000..dc11125747f2f1e0fadc816f2ff9fe3a903e8a12
--- /dev/null
+++ b/snake/pyproject.toml
@@ -0,0 +1,23 @@
+[tool.poetry]
+name = "snake-template"
+version = "1.0.0"
+description = "Template pour le jeu Snake -- Fil Rouge stages seconde"
+authors = ["Oliver Irwin <oliver.irwin@univ-lille.fr"]
+
+[tool.poetry.dependencies]
+python = ">=3.10.0,<=3.12"
+pygame = "^2.5.2"
+
+[tool.pyright]
+# https://github.com/microsoft/pyright/blob/main/docs/configuration.md
+useLibraryCodeForTypes = true
+exclude = [".cache"]
+
+[tool.ruff]
+# https://beta.ruff.rs/docs/configuration/
+select = ['E', 'W', 'F', 'I', 'B', 'C4', 'ARG', 'SIM']
+ignore = ['W291', 'W292', 'W293']
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
\ No newline at end of file
diff --git a/snake/snake_fr.tex b/snake/snake_fr.tex
new file mode 100755
index 0000000000000000000000000000000000000000..b7e3c11e9a61ab81f210a8f8c1f60656a20399e1
--- /dev/null
+++ b/snake/snake_fr.tex
@@ -0,0 +1,281 @@
+\documentclass[french]{fil-td}
+
+\input{preamble_fr}
+
+\hypersetup{
+ colorlinks,
+ urlcolor=ulille-orange,
+ linkcolor=ulille-green,
+ pdfauthor=Oliver Irwin,
+ pdftitle=Snake,
+ pdfsubject=Projet Fil Rouge -- Stages Seconde 2024,
+ pdfkeywords={Python, snake, jeu, projet, CRIStAL, CNRS}
+}
+
+\title{Projet Snake}
+\subject{Stages Seconde 2024}
+\teacher{\textsf{CRIStAL} - Commission Scolaire}
+
+\BeforeBeginEnvironment{ideablock}{\savenotes}
+\AfterEndEnvironment{ideablock}{\spewnotes}
+
+% \BeforeBeginEnvironment{infoblock}{\savenotes}
+% \AfterEndEnvironment{infoblock}{\spewnotes}
+
+\BeforeBeginEnvironment{objectiveblock}{\savenotes}
+\AfterEndEnvironment{objectiveblock}{\spewnotes}
+
+
+\begin{document}
+
+\maketitle
+
+\begin{objectiveblock}[title={\small \faBullseye} Conseils]
+ \begin{itemize}
+ \item l'objectif est de vous faire tous travailler sur le projet, mais
+ n'hésitez pas à discuter entre vous;
+ \item toutes les notions utiles sont disponibles soit dans le document joint
+ soit dans la documentation\footnote{\url{https://www.pygame.org/docs/}};
+ \item la plupart des réponses se trouvent dans les questions;
+ \item posez des questions \faLaughWink[regular]{}
+ \end{itemize}
+\end{objectiveblock}
+
+\section*{Contexte}
+
+Le jeu \descr{Snake} est un des jeux les plus populaires au monde\footnote{au
+ moins à une certaine époque}. L'objectif du jeu est de contrôler un petit
+serpent. Ce serpent peut se déplacer dans une zone de jeu bien définie et a pour
+objectif de manger des pommes qui y sont placées aléatoirement. Chaque pomme
+mangée fait grandir le serpent, qui devient alors plus difficile à contrôler. Le
+jeu se termine si le serpent quitte la zone de jeu, si sa tête touche une autre
+partie de son corps ou (dans le meilleur des cas), s'il remplit toute la surface
+de jeu.
+
+\begin{ideablock}
+ Dans le squelette de code fourni se trouvent de multiples informations sur les
+ endroits où écrire les morceaux de code. Utilisez ça à votre avantage!
+\end{ideablock}
+
+\subsection*{Organisation de la zone de jeu}
+
+On définit une \descr{position} dans la zone de jeu par une paire de nombre qui
+indiquent la distance au coin supérieur gauche: \emphase{(0,0)}. La première
+coordonnée concerne la distance \descr{horizontale} et la seconde la distance
+\descr{verticale}.
+
+On définit une \descr{unité} comme un nombre de pixels qui vont permettre de
+diviser la zone de jeux dans une grille. La première colonne (ou ligne) sera
+\emphase{0}, la dernière aura l'indice \emphase{max - 1}.
+
+Chaque \descr{élément de jeu} est composé d'un carré de taille \descr{unité},
+identifié par la position de son coin supérieur gauche, qui correspondent à sa
+colonne et sa ligne.
+
+Le serpent commencera \descr{au milieu} de la zone de jeu.
+
+Le serpent est composé de plusieurs carrés de la même couleur. Quand il se
+déplace, on considère que la tête se déplace dans la direction donnée et que le
+dernier carré disparaît.
+
+Dans la \cref{fig:grid}, vous pouvez observer un exemple simplifié d'une grille
+de \emphase{30x20}. Le serpent fait ici \emphase{5} carrés de long et la pomme
+est à la position \emphase{(14, 5)}. Bien sûr, vous ne représenterez pas les
+coordonnées à l'écran, elles sont juste là pour la visualisation.
+
+\begin{figure}[htp]
+ \centering
+ \includegraphics{grid}
+ \caption{Exemple de grille}
+ \label{fig:grid}
+\end{figure}
+
+\clearpage
+\step{Définition des variables}
+\label{step:1}
+
+Comme dans tout bon projet de code, on va commencer par définir quelques
+variables qui vont nous permettre de gérer la zone de jeu proprement.
+
+Vous aurez besoin de:
+
+\begin{itemize}
+\item une taille \descr{unite}, à régler à \emphase{10} pour le moment;
+\item une taille \descr{largeur\_zone}, réglée à \emphase{60} unités;
+\item une taille \descr{hauteur\_zone}, réglée à \emphase{40} unités;
+\item une couleur \descr{couleur\_nourriture}\footnote{\label{fn:couleurs}il y a
+ des exemples de couleurs dans le squelette, mais n'hésitez pas à utiliser les
+ votres~!};
+\item une couleur \descr{couleur\_serpent}\footnoteref[fn:couleurs];
+\item une couleur \descr{couleur\_fond}\footnoteref[fn:couleurs].
+\end{itemize}
+
+\step{Préparation de la zone de jeu}
+
+Dans cette étape, on se concentre sur la création et la préparation de la zone
+de jeu.
+
+\begin{enumerate}
+\item mettez à jour le squelette pour construire une fenêtre de telle sorte à ce
+ qu'elle utilise les variables de largeur et de hauteur de zone que vous avez
+ définies;
+\item ajoutez une couleur de fond à la fenêtre;
+\item écrivez le corps de la fonction \descr{dessiner\_carre}. Cette fonction
+ prend 3 paramètres: \emphase{x}, \emphase{y} et \emphase{couleur}. Elle
+ dessinera un carré de taille \descr{unite} à la position \emphase{(x, y)}.
+\end{enumerate}
+
+\begin{ideablock}
+ N'hésitez pas à tester votre fonction dans votre grille pour vérifier que vous
+ avez bien un carré de la bonne couleur au bon endroit.
+\end{ideablock}
+
+\step{Une pincée d'aléatoire}
+
+On veut pouvoir faire apparaître la nourriture à des endroits aléatoires de la
+grille, sinon le jeu est trop facile. Pour pouvoir faire ça, il faut qu'on soit
+en mesure de générer des positions aléatoires.
+
+\begin{enumerate}
+\item Écrivez une fonction \descr{entier\_aleatoire} qui prend un paramètre
+ \emphase{max} et qui renvoie un entier aléatoire entre \emphase{0} et
+ \emphase{max} (exclus).
+\item Écrivez une fonction \descr{position\_aleatoire} qui renvoie une position
+ (donc un couple de coordonnées) qui doit être \descr{valide}, c'est à dire qui
+ est dans la zone de jeu. Vous devriez utiliser la fonction que vous venez de
+ définir et les variables de l'\cref{step:1}.
+\end{enumerate}
+
+\begin{ideablock}
+ La structure de données la plus efficace pour représenter ce couple d'entiers
+ est le \emphase{tuple}
+\end{ideablock}
+
+\step{Afficher plusieurs carrés}
+
+Le serpent va vite être constitué de plusieurs carrés. On va donc devoir définir
+une fonction \descr{dessine\_liste\_carres} qui prend en paramètres:
+
+\begin{itemize}
+\item une liste de positions;
+\item une couleur.
+\end{itemize}
+
+et qui dessine pour chaque position dans la liste un carré. Vous utiliserez bien
+sûr la fonction que vous avez définie lors de l'\cref{step:1}. Tous les carrés
+de la liste seront de la même couleur.
+
+\step{Variables des éléments de jeu}
+
+On va redéfinir quelques variables supplémentaires, qui cette fois vont nous
+aider à stocker des informations importantes sur la partie. Vous allez avoir
+besoin de:
+
+\begin{itemize}
+\item une liste \descr{positions\_serpent}, qui représente la liste des
+ positions des carrés constituant le serpent. Au départ, vous pouvez n'y mettre
+ qu'un seul élément qui est le milieu de la zone de jeu.
+\item un booléen \descr{fin\_jeu}, qui nous indiquera que la partie est
+ terminée. Bien sûr, cette variable vaut \emphase{False} au départ.
+\item la direction du serpent \descr{direction\_serpent}, chaîne vide au départ.
+\item la position de la pomme \descr{position\_pomme}, qui sera initialement
+ choisie en appelant une fonction bien choisie.
+\end{itemize}
+
+\step{Un tour de jeu}
+
+Un tour de jeu est constitué de plusieurs actions, que l'on va décrire
+maintenant:
+
+\begin{enumerate}
+\item appeler la fonction \descr{dessine\_carre} pour faire apparaître la pomme
+ au bon endroit;
+\item appeler la fonction \descr{afficher\_message} pour faire apparaître le
+ score en haut à gauche. On définit le score comme étant la longueur du serpent
+ moins 1.
+\item appeler la fonction \descr{dessine\_liste\_carres} pour afficher le
+ serpent.
+\item utiliser la variable \descr{fin\_jeu} dans la boucle principale.
+\end{enumerate}
+
+\step{Les directions}
+
+Notre serpent va pouvoir se déplacer dans plusieurs directions. On va créer une
+fonction \descr{direction}, qui va prendre deux paramètres: la touche sur
+laquelle on appuie et la direction du serpent actuelle. On se base ensuite sur
+la touche pressée pour changer la direction. Si c'est:
+
+\begin{itemize}
+\item \emphase{HAUT}, alors la coordonnée \emphase{x} ne change pas et
+ \emphase{y} augmente de 1;
+\item \emphase{BAS}, alors on ne touche pas à \emphase{x} et on décroît
+ \emphase{y} de 1;
+\item \emphase{GAUCHE}, alors \emphase{x} decroît de 1 et \emphase{y} ne change
+ pas;
+\item \emphase{DROITE}, alors \emphase{x} augmente de 1 et \emphase{y} ne change
+ pas.
+\end{itemize}
+
+La fonction renverra un tuple d'entiers qui représente les changements pour
+\emphase{x} et \emphase{y}. Si une autre touche est pressée, alors on ne change
+rien bien sûr.
+
+\step{Réagir à un évènement}
+
+Deux évènements principaux peuvent arriver pendant la partie. Il faudra gérer ce
+qu'il se passe pour chaque.
+
+\begin{enumerate}
+\item Le joueur appuie sur la bouton de sortie. Dans ce cas, la partie se
+ termine, une variable doit changer.
+\item Le joueur appuie sur une touche. Dans ce cas, la direction du serpent peut
+ changer. Utilisez une fonction définie précédemment pour gérer ceci.
+\end{enumerate}
+
+\begin{ideablock}
+ Vous pouvez utiliser \emphase{event.type} pour obtenir le type d'un évènement.
+\end{ideablock}
+
+\step{Calcul de la nouvelle position}
+
+Écrivez une fonction \descr{nouvelle\_position} qui prend en paramètre le
+serpent et la direction actuelle. La fonction renvoie la nouvelle position de la
+tête du serpent.
+
+Vous calculerez la nouvelle coordonnée à partir de la direction. Pour faire plus
+simple, vous pourrez ajouter la nouvelle position à la fin de la liste des
+positions du serpent, mais gardez en tête que c'est le dernier élément de cette
+liste qui représentera la tête à chaque fois.
+
+\step{Respecter la zone}
+
+On ne veut pas que notre serpent puisse quitter la zone (ça pourrait même être
+un motif de fin de partie). Écrivez donc une fonction \descr{dans\_zone} qui
+renvoie \emphase{True} si la position est dans la zone de jeu et \emphase{False}
+sinon.
+
+\begin{ideablock}
+ Utilisez les variables que vous avez définies à l'\cref{step:1} pour
+ déterminer si on est dans la zone!
+\end{ideablock}
+
+\step{Déplacer le serpent}
+
+Il faut maintenant déterminer la nouvelle position de la tête et vérifier deux
+choses :
+
+\begin{enumerate}
+\item si la tête du serpent est dans la zone de jeu, alors elle est ajoutée au
+ serpent, sinon, la partie est finie;
+\item si la tête du serpent est sur la pomme, alors il faut déterminer une
+ nouvelle position valide pour la nourriture. Sinon, alors on retire de la
+ liste la position de la queue du serpent.
+\end{enumerate}
+
+\end{document}
+
+%%% Local Variables:
+%%% mode: latex
+%%% TeX-master: t
+%%% TeX-engine: luatex
+%%% End: