environments.sty

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{environments}

\RequirePackage[most]{tcolorbox}


%to allow long align env. to break between pages

\allowdisplaybreaks




% Do it yourself box
\newtcolorbox{diybox}{%
	tikznode boxed title,
	freelance,
	breakable,
	parbox=false,
	arc=1mm,
	left=6pt, right=6pt, bottom=4pt, top=12pt,
	colframe=black,
	colback=white,
	boxrule=0.7pt,
	interior style={white},
	attach boxed title to top center= {yshift=-3.5mm},
	fonttitle=\bfseries,
	colbacktitle=white,coltitle=black,
	%attach boxed title to top left={xshift=0.5cm, yshift=-3.5mm},
	before skip=10pt plus 2pt,
	title={{পড়া থামাও, নিজে চেষ্টা করো }}
}




% Diversion
\newtcolorbox{diversion}{%
	%tikznode boxed title,
	freelance,
	breakable,
	parbox=false,
	%arc=1mm,
	left=6pt, right=6pt, bottom=4pt, top=12pt,
	colframe=black,
	toprule=0.7pt,
	bottomrule=0.7pt,
	colback=white,
	%interior style={white},
	attach boxed title to top center= {yshift=-\tcboxedtitleheight/2},
	fonttitle=\bfseries,
	colbacktitle=white,coltitle=black,
	%boxed title style={size=normal,colframe=white,boxrule=0pt},
	title={{একটু অন্যদিকে}},
	before skip=10pt plus 2pt,
	boxed title style={
		size=fbox, 
		colback=white, 
		freelance,
		boxrule=0.7pt,
		colframe=black,
		frame code={ 
			\path[tcb fill frame] ([xshift=-2mm]frame.west) 
			-- (frame.north west) 
			-- (frame.north east) 
			-- ([xshift=2mm]frame.east)
			-- (frame.south east) 
			-- (frame.south west) 
			-- cycle; 
		},
		interior code={ 
			\path[tcb fill interior] ([xshift=-2mm]interior.west)
			-- (interior.north west) 
			-- (interior.north east)
			-- ([xshift=2mm]interior.east) 
			-- (interior.south east) 
			-- (interior.south west)
			-- cycle;
		}
	}
}




%fancy theorem box
\newtcolorbox{ttip}{
	enhanced,
	sharp corners=downhill,
	left=6pt, right=6pt, bottom=4pt, top=8pt,
	colback=black!02!white,
	colframe=black!25!black,
	coltext=black,
	coltitle=black,
	%fontupper=\Large\bfseries,
	before skip=5pt plus 2pt,
	arc=6mm,
	boxrule=1mm,
	boxsep=3mm,
	borderline={0.3mm}{0.3mm}{white},
	title={কীভাবে পড়ানো যেতে পারে?},
	attach boxed title to top left={xshift=0.5cm, yshift=-3.85mm},
	boxed title style={
		size=fbox, 
		colback=black!10!white, 
		freelance,
		boxrule=1.2pt,
		colframe=black,
		frame code={ 
			\path[tcb fill frame] ([xshift=-2mm]frame.west) 
			-- (frame.north west) 
			-- (frame.north east) 
			-- ([xshift=2mm]frame.east)
			-- (frame.south east) 
			-- (frame.south west) 
			-- cycle; 
		},
		interior code={ 
			\path[tcb fill interior] ([xshift=-2mm]interior.west)
			-- (interior.north west) 
			-- (interior.north east)
			-- ([xshift=2mm]interior.east) 
			-- (interior.south east) 
			-- (interior.south west)
			-- cycle;
		}
	}
}



% Example
\newcounter{example}[chapter]
\newtcolorbox[use counter=example, number freestyle={\noexpand\thechapter.\noexpand\tobangla{\tcbcounter}}]{example}[1][]{
	colback=white,
	colframe=black,%gray!80,
	fonttitle=\bfseries,
	%leftrule=3mm,rightrule=3mm,toprule=2pt,bottomrule=2pt,
	colbacktitle=white,%gray!40,
	arc=2mm,
	top=10pt, left=6pt, right=6pt, bottom=5pt,
	coltitle=black,
	boxrule=0.7pt,
	freelance,
	breakable,
	before skip=10pt plus 2pt,
	%before title={\refstepcounter{example}\label{example-\theexample}},
	attach boxed title to top left={
		yshift=-9pt,
		xshift=0.15in
	},
	boxed title style={
		size=fbox, 
		boxrule=1pt, 
		colframe=black, 
		arc=1mm
	},
	title={উদাহরণ \thetcbcounter},
	#1
}



\iffalse
% Old Solution
\newtcolorbox{solution}[1][]{
	skin=enhancedlast,
	breakable,
	frame empty,
	interior empty,
	left=10pt, right=0pt, bottom=4pt, top=8pt,
	colframe=white,
	coltitle=black!50!black,
	fonttitle=\bfseries,
	colbacktitle=black!5!white,
	colback=white,
	%borderline={0.5mm}{0mm}{white},
	%attach boxed title to top center={yshift=-2mm},
	boxed title style={boxrule=0.4pt},
	varwidth boxed title,
	title={সমাধান},
	after upper={\hfill$\qed$}
}
\fi




% Lemma
\newtcolorbox{lemma}[1][]{
	skin=bicolor,
	breakable,
	frame empty,
	interior empty,
	colframe=black!50!white,
	colback=black!1!white,
	colbacklower=black!.3!white,
	coltitle=black!50!black,
	fonttitle=\bfseries,
	fontupper=\itshape,
	colbacktitle=black!5!white,
	borderline={0.1mm}{0mm}{white},
	%attach boxed title to top center={yshift=-2mm},
	boxed title style={boxrule=0.4pt},
	varwidth boxed title,
	title={লেমা}  
}




% Important Box
\newtcolorbox{impbox}{
	skin=enhanced,
	left=20pt, right=20pt, bottom=4pt, top=8pt,
	colframe=white,
	colback=white,
	fontupper=\itshape,
	title empty
}



\newtcolorbox{class_fun}[2][]{
	breakable,
	frame empty,
	interior empty,
	colframe=black!50!white,
	colback=black!1!white,
	colbacklower=black!.3!white,
	coltitle=black!50!black,
	fonttitle=\bfseries\itshape,
%	fontupper=\itshape,
	colbacktitle=black!5!white,
	borderline={0.1mm}{0mm}{white},
	%attach boxed title to top center={yshift=-2mm},
	boxed title style={boxrule=0.4pt},
	varwidth boxed title,
	title={#2}  
}




% Chapter Quote

\newfontfamily\quotefont[%
	Scale= 1.1,
	WordSpace=1.4,
	AutoFakeSlant=1.2,
	AutoFakeBold=1.2
]{[Monotype Corsiva]}

\newenvironment{chapquote}[2][2em]{
	\setlength{\@tempdima}{#1}%
	\def\chapquote@author{#2}%
	\parshape 1 \@tempdima \dimexpr\textwidth-2\@tempdima\relax%
	\uccoff\quotefont
}{\uccon\par\normalfont\hfill--\ \chapquote@author\hspace*{\@tempdima}\par\smallskip}





% Old Quote
\def\signed #1{{\leavevmode\unskip\nobreak\hfil\penalty50\hskip2em

		\hbox{}\nobreak\hfil-#1%

		\parfillskip=0pt \finalhyphendemerits=0 \endgraf}}


\newsavebox\mybox

\def\signed #1{{\leavevmode\unskip\nobreak\hfil\penalty50\hskip2em

		\hbox{}\nobreak\hfil-#1%

		\parfillskip=0pt \finalhyphendemerits=0 \endgraf}}

\newenvironment{cquote}[1]
	{\savebox\mybox{#1}\begin{quote}}
	{\signed{\usebox\mybox}\end{quote}}




% Environments 
\newtheoremstyle{custom2}% name
				{10pt}% space above
				{3pt}% space below
				{\rm}% body font
				{}% indent amount
				{\bfseries}% theorem head font
				{:}% punctuation after theorem head
				{.5em}% space after theorem head
				{\thmname{#1}\thmnumber{ \bfseries#2}\thmnote{ (#3)}}% theorem head spec
				
\theoremstyle{custom2}
\newtheorem{problem}{\bfseries সমস্যা}
\newtheorem*{remark}{\bfseries মন্তব্য}
%a new partial solution environment
\newenvironment{partsol}[1][আংশিক সমাধান]{\proof[\itshape #1]}{}


% \newtheorem*{lemma}{\bfseries লেমা}
% \newtheorem{theorem}{\bfseries উপপাদ্য}
% \counterwithin{theorem}{chapter}
% \renewcommand{\thetheorem}{\thechapter.\tobangla{theorem}}







%noindlist
\newcounter{noindlistcounter}
\newenvironment{noindlist}
{\begin{list}{\qc\;\;}{\labelsep=0em \labelwidth=2em \itemindent=0em \leftmargin=1.5em}}
	{\end{list}}





% exercise :?
\newcounter{exercisecounter}
\counterwithin{exercisecounter}{chapter}
\newenvironment{exercise}
{\begin{list}{\textbf{প্রবলেম \thechapter.\tobangla{exercisecounter}:~}}{\usecounter{exercisecounter} \labelsep=0em \labelwidth=0em \leftmargin=0em \itemindent=0em}}
	{\end{list}}

%fix to not have to replace all the exercise envs, not robust
\renewcommand{\itemautorefname}{প্রবলেম}
\renewcommand{\theexercisecounter}{\tobangla{exercisecounter}}








% puzzle
\newtcbtheorem{puzzle}{}{
	boxrule=.7pt,
	lower separated=false,
	colback=white!95!gray,
	colframe=black, 
	fonttitle=\bfseries,
	coltitle=black,
	detach title,
	before upper={
		\tcbtitle
		\quad},
	sharp corners,
	title={#1},
	separator sign={},
	top=5pt, bottom=5pt, left=5pt, right=5pt,
	before upper={\parindent0pt},
}{puz}

\newtcbtheorem{puzzle_exc}{}{
	boxrule=0pt,
	lower separated=false,
	colback=white,
	colframe=black, 
	fonttitle=\bfseries,
	coltitle=black,
	colbacktitle=white!95!black,
	before upper={
		\tcbtitle
		\quad},
	sharp corners,
	title={#1},
	separator sign={},
	top=5pt, bottom=5pt, left=5pt, right=5pt,
	before upper={\parindent0pt},
	breakable,
}{puz_exc}


\newtcbtheorem{game}{}{
	boxrule=2pt,
	lower separated=false,
	colback=white!95!gray,
	colframe=black, 
	fonttitle=\bfseries,
	coltitle=black,
	detach title,
	before upper={
		\tcbtitle
		\quad},
	sharp corners,
	title={#1},
	separator sign={},
	top=5pt, bottom=5pt, left=5pt, right=5pt,
	before upper={\parindent0pt},
}{gam}



\renewcommand{\theexercisecounter}{\tobangla{exercisecounter}}