\documentclass[a4paper]{book}
\input{preamble.tex}

\begin{document}

\begin{titlepage}
\begin{center}
  \includegraphics[width = \textwidth]{graphics/svg-logo.png}
  \huge{\textbf{CORE RULEBOOK}}\\
  \LARGE{$\beta2.1.1$ --- By Niko Lepka}\\
  \Large{\today}
\end{center}
\end{titlepage}
\thispagestyle{empty} % removes page number from front page
\frontmatter % adds Roman numerals to the preface chapter
\chapter*{Preface}
\section*{What is Siren?}
Siren, the \textbf{Si}mple \textbf{R}PG \textbf{En}gine, is a free and open source RPG system that aims at being simple and easy to learn without also compromising on the expressiveness of the system.

An RPG engine, much like a video game engine, is a framework on which you can build your own system. If any of the rules in this seem like they don't \textit{quite} fit what you need, you're free to change them or even add new ones if that better suits your campaign.

\section*{What are RPGs?}
Role Playing Games---RPGs for short---are games in which you take the role of some character and act in their stead.
You may know this from video games, where you play some adventurer in a medieval land full of magic and dragons; or where you play a person that's trying to survive in a nuclear wasteland, fighting mutants and warring factions.
But RPGs date back before that.

Traditional RPGs, also known as \textit{Tabletop RPGs} or \textit{Pen and Paper RPGs} date back to the early 1970s.
It's a social game played with a group of friends around a table, mutually telling a common story of great adventure, mysticism, space warfare or anything else they can come up with.
These typically employ the use of dice and a piece of paper with all the characters' traits and abilities written out for the players to make use of during game-play.

\section*{Who is this for?}
Some role-playing systems have hundreds of books and rules, so many so that it's hard to remember them all, and valuable playtime is spent researching and cross-referencing rules. 
While other systems have so few and vague, that a lot of playtime is spent arguing about which rules apply to a given situation.

Siren is made for those players who wish to have a small yet precise set of rules that can be used in every type of story, whether it's a grand space opera, or high fantasy, Siren's got you covered.

\section*{Where can I contribute?}
You can contribute to Siren on \texttt{https://github.com/ElectricCoffee/SirenRPG}.
Guidelines for how to contribute are available on the page.

\section*{Conventions}
This book uses standard RPG dice notation, which looks like this: $AdX\pm L$, where $A$ is the number of dice, $X$ is the number of faces on the die, and $L$ is the value added or subtracted after the roll, so $3d6+8$ means roll three six-sided dice, and add 8 to the result.
While any type of die can be used in your games, Siren only requires the venerable $d6$.

\begin{note}
  Notes are displayed like this, and often convey important information to the player or GM regarding a certain mechanic.
\end{note}

\begin{example}
  Examples are displayed like this, and show a situation in which something is used.
\end{example}

\section*{Special Thanks}
Special thanks to the lovely individuals who've helped out with the project in one way or another:
\begin{center}
    \begin{tabular}{cccc}
        Aleksander Øglænd & Alex Laterman & Ben Overmyer & Christian J. Martinsen \\
        Jacob G. Jacobsen & Marco L. L. Olsen & Morten M. Rasmussen & Patrick A. \\
        Peter L. Erichsen & Thomas G. McCollin & Tyson Tan \\
    \end{tabular}
\end{center}

\section*{Licence}
This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.
To view a copy of this license, visit \texttt{http://creativecommons.org/licenses/by-sa/4.0/} or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.

\subsection*{Your Rights}
This work is published under the \textit{Creative Commons Attribution-ShareAlike 4.0 International License} which grants you the following set of rights:
\paragraph{Sharing} You're free to download, use, and share this work at no cost.
\paragraph{Adaptation} You're free to adapt the work to your liking. 
If there's something in here that would work better with some alterations, you are within your right to make these changes.

\subsection*{Some Conditions Apply}
You're permitted to share and adapt under the following conditions:
\paragraph{Provide Attibution} If you make any changes or otherwise redistribute this work, you \textbf{must} make sure to credit me for my work and state what changes have been made from the original.
You must do so without making it look like I endorse you or your use (unless otherwise agreed upon).
\paragraph{Share Alike} If you choose to remix or transform this work in any way, you \textbf{must} release it under the same or a compatible licence\footnote{\texttt{https://creativecommons.org/share-your-work/licensing-considerations/compatible-licenses}}.

\tableofcontents
\mainmatter % adds Arabic numbers to the main chapters
\input{chapters/basics.tex}
\input{chapters/game-creation.tex}
\input{chapters/character-creation.tex}
\input{chapters/traits.tex}
\input{chapters/skills/main.tex}
\input{chapters/exploits.tex}
\input{chapters/combat/main.tex}
\input{chapters/character-progression.tex}
\input{chapters/magic.tex}
\input{chapters/hacking/main.tex}

\appendix
\input{chapters/appendix/main.tex}
\end{document}
