%%%
% Message caché
%%%
\setKVdefault[Hidden]{TLargeur=5,THauteur=3,Solution=false,Hauteur=70pt,Largeur=120pt,Jeu=false,Solution}
\defKV[Hidden]{Plateau=\setKV[Hidden]{Jeu}\setKV[Hidden]{Solution=false}}

\newlength\PfCHiddenHeight%
\newlength\PfCHiddenWidth%

\NewDocumentCommand\MessageCache{o m m}{%1 options 2 questions/réponses 3 message
  % on récupère les options
  \useKVdefault[Hidden]%
  \setKV[Hidden]{#1}%
  % on définit les dimensions des cases
  \setlength{\PfCHiddenHeight}{\useKV[Hidden]{Hauteur}+\tabcolsep}%
  \setlength{\PfCHiddenWidth}{\useKV[Hidden]{Largeur}}%
  % On récupère les questions
  \setsepchar[*]{§*/}%
  \readlist*\PfCHiddenQuestions{#2}%
  \setsepchar{,}
  \ifboolKV[Hidden]{Solution}{%
    % On donne les questions et la phrase
    \begin{center}
      \begin{NiceTabular}{*{\useKV[Hidden]{TLargeur}}{m{\PfCHiddenWidth}}}%[hvlines]
        \xintFor* ##1 in{\xintSeq{1}{\useKV[Hidden]{THauteur}}}\do{%
          \rule{0pt}{\PfCHiddenHeight}\xintFor* ##2 in {\xintSeq{1}{\useKV[Hidden]{TLargeur}}}\do{%
            \Block[draw]{1-1}{\PfCHiddenQuestions[\fpeval{\useKV[Hidden]{THauteur}*(##1-1)+##2},1]}\xintifForLast{}{&}
          }\\
        }%
        \CodeAfter%
        \StrGobbleLeft{#3}{0}[\PhraseCorrection]%
        \xintFor* ##1 in{\xintSeq{1}{\useKV[Hidden]{THauteur}}}\do{%
          \xintFor* ##2 in{\xintSeq{1}{\fpeval{\useKV[Hidden]{TLargeur}-1}}}\do{%
            \StrLeft{\PhraseCorrection}{1}[\LettreAAfficher]\StrGobbleLeft{\PhraseCorrection}{1}[\PhraseCorrection]%
            \tikz{\node[anchor=south] at (\fpeval{##1+1}-|\fpeval{##2+1}) {\huge\bfseries\LettreAAfficher};}%
          }%
        }%
      \end{NiceTabular}
    \end{center}
  }{%
    % On donne le plateau des solutions
    \begin{center}
      \begin{NiceTabular}{*{\useKV[Hidden]{TLargeur}}{m{\PfCHiddenWidth}}}%[hvlines]
        \xintFor* ##1 in{\xintSeq{1}{\useKV[Hidden]{THauteur}}}\do{%
          \rule{0pt}{\PfCHiddenHeight}\xintFor* ##2 in {\xintSeq{1}{\useKV[Hidden]{TLargeur}}}\do{%
            \Block[draw]{1-1}{\PfCHiddenQuestions[\fpeval{\useKV[Hidden]{THauteur}*(##1-1)+##2},2]}\xintifForLast{}{&}
          }\\
        }%
      \end{NiceTabular}
    \end{center}
  }
}%