%%
%% This is file `realhats.sty',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% realhats.dtx  (with options: `realhats')
%% Copyright (c) 2019 Matthew Scroggs & Adam Townsend
%% 
%% Permission is hereby granted, free of charge, to any person obtaining a copy
%% of this software and associated documentation files (the "Software"), to deal
%% in the Software without restriction, including without limitation the rights
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
%% copies of the Software, and to permit persons to whom the Software is
%% furnished to do so, subject to the following conditions:
%% 
%% The above copyright notice and this permission notice shall be included in all
%% copies or substantial portions of the Software.
%% 
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
%% SOFTWARE.
%% 


\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{realhats}[2019/04/14 realhats 3.0]

\RequirePackage{amsmath}
\RequirePackage{graphicx}
\RequirePackage{ifthen}
\RequirePackage[first=0, last=9, counter=hat]{lcg}
\RequirePackage{calc}
\RequirePackage{stackengine}

\newcommand\myhat{}
\newlength{\hatwidth} %hat width
\newlength{\hshif} %horizontal shift
\newlength{\vshif} %vertical shift

\global\def\hatused{-1}
\DeclareOption{beret}{\global\def\hatused{beret}}
\DeclareOption{santa}{\global\def\hatused{santa}}
\DeclareOption{sombrero}{\global\def\hatused{sombrero}}
\DeclareOption{witch}{\global\def\hatused{witch}}
\DeclareOption{tophat}{\global\def\hatused{tophat}}
\DeclareOption{ash}{\global\def\hatused{ash}}
\DeclareOption{fez}{\global\def\hatused{fez}}
\DeclareOption{cowboy}{\global\def\hatused{cowboy}}
\DeclareOption{crown}{\global\def\hatused{crown}}
\DeclareOption{dunce}{\global\def\hatused{dunce}}
\ProcessOptions\relax

\newcommand{\gethat}{%
    \ifcase\thehat beret%
        \or santa%
        \or sombrero%
        \or witch%
        \or tophat%
        \or ash%
        \or fez%
        \or cowboy%
        \or crown%
        \or dunce%
    \fi
}

\renewcommand{\hat}[2][]{%
    \ifthenelse{\equal{#1}{}}{%
        \ifthenelse{\equal{\hatused}{-1}}%
        {\rand\hatn{#2}{\gethat}}%
        {\hatn{#2}{\hatused}}%
    }{%
        \ifthenelse{\equal{#1}{beret}}{\hatn{#2}{beret}}{}%
        \ifthenelse{\equal{#1}{santa}}{\hatn{#2}{santa}}{}%
        \ifthenelse{\equal{#1}{sombrero}}{\hatn{#2}{sombrero}}{}%
        \ifthenelse{\equal{#1}{witch}}{\hatn{#2}{witch}}{}%
        \ifthenelse{\equal{#1}{tophat}}{\hatn{#2}{tophat}}{}%
        \ifthenelse{\equal{#1}{ash}}{\hatn{#2}{ash}}{}%
        \ifthenelse{\equal{#1}{fez}}{\hatn{#2}{fez}}{}%
        \ifthenelse{\equal{#1}{cowboy}}{\hatn{#2}{cowboy}}{}%
        \ifthenelse{\equal{#1}{crown}}{\hatn{#2}{crown}}{}%
        \ifthenelse{\equal{#1}{dunce}}{\hatn{#2}{dunce}}{}%
    }%
}

\newcommand{\hatn}[2]{\hatnoptions{#1}{#2}{0ex}{0ex}}

\newcommand{\hatnoptions}[4]{%
\setlength{\hshif}{1pt}
\setlength{\hatwidth}{2ex}
\ifthenelse{\equal{#2}{beret}}{\renewcommand\myhat{hats/realhats-beret}\setlength{\vshif}{-0.6ex} \setlength{\hshif}{0.5ex} }{}%
\ifthenelse{\equal{#2}{santa}}{\renewcommand\myhat{hats/realhats-santa}\setlength{\vshif}{-0.1ex} }{}%
\ifthenelse{\equal{#2}{sombrero}}{\renewcommand\myhat{hats/realhats-sombrero}\setlength{\vshif}{-0.17ex} \addtolength{\hshif}{-1pt}}{}%
\ifthenelse{\equal{#2}{witch}}{\renewcommand\myhat{hats/realhats-witch}\setlength{\vshif}{-0.12ex} \addtolength{\hshif}{-1pt}}{}%
\ifthenelse{\equal{#2}{tophat}}{\renewcommand\myhat{hats/realhats-tophat}\setlength{\vshif}{-0.4ex} \setlength{\hatwidth}{1.8ex} \addtolength{\hshif}{-1pt}}{}%
\ifthenelse{\equal{#2}{ash}}{\renewcommand\myhat{hats/realhats-ash}\setlength{\vshif}{-0.6ex} \setlength{\hatwidth}{1.8ex} \addtolength{\hshif}{-1pt}}{}%
\ifthenelse{\equal{#2}{fez}}{\renewcommand\myhat{hats/realhats-fez}\setlength{\vshif}{-0.4ex} \setlength{\hatwidth}{1ex} \addtolength{\hshif}{-1pt}}{}%
\ifthenelse{\equal{#2}{cowboy}}{\renewcommand\myhat{hats/realhats-cowboy}\setlength{\vshif}{-0.3ex} \setlength{\hshif}{0.2ex}}{}%
\ifthenelse{\equal{#2}{crown}}{\renewcommand\myhat{hats/realhats-crown}\setlength{\vshif}{-0.3ex} \setlength{\hshif}{0.2ex}}{}%
\ifthenelse{\equal{#2}{dunce}}{\renewcommand\myhat{hats/realhats-dunce}\setlength{\vshif}{-0.3ex} \setlength{\hatwidth}{1.4ex}}{}%
\addtolength{\hshif}{#3}%
\addtolength{\vshif}{#4}%
\stackMath %
\stackon[\vshif]{#1}{\hspace{\hshif}\includegraphics[width=\hatwidth]{\myhat}}
}
\endinput
%%
%% End of file `realhats.sty'.
