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  88. <div class="section" id="introduction">
  89. <h1>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h1>
  90. <div class="section" id="what-is-it">
  91. <h2>What is it?<a class="headerlink" href="#what-is-it" title="Permalink to this headline">¶</a></h2>
  92. <p>Crown is a general purpose and data-driven game engine, written in <a class="reference external" href="https://gist.github.com/bkaradzic/2e39896bc7d8c34e042b">orthodox</a> C++ with a
  93. minimalistic and data-oriented design philosophy in mind.</p>
  94. <p>Crown isn’t tied to a particular game type or genre but instead it offers a set
  95. of generic primitives and facilities to help you create a wide gamut of
  96. interactive 2D and 3D products.</p>
  97. <p>Crown also offers a complete cross-platform editor to create and put together
  98. all the elements that make up your game.</p>
  99. <p>Crown is loosely inspired by the Bitsquid engine and many of its design
  100. principles.</p>
  101. </div>
  102. <div class="section" id="features">
  103. <h2>Features<a class="headerlink" href="#features" title="Permalink to this headline">¶</a></h2>
  104. <div class="admonition note">
  105. <p class="first admonition-title">Note</p>
  106. <p class="last">Crown is in active development and new features are added and improved all
  107. the time; you can check out the development efforts in real-time on
  108. <a class="reference external" href="https://github.com/crownengine/crown/issues">GitHub</a> and on the
  109. <a class="reference external" href="https://discord.com/invite/CeXVWCT">Discord</a> channel!</p>
  110. </div>
  111. <ul class="simple">
  112. <li><dl class="first docutils">
  113. <dt>Data-driven</dt>
  114. <dd>Every aspect of the game is controlled through text configuration files. Text
  115. files are human-readable for easy inspection and play nicely with traditional
  116. version control systems. Before shipping, configuration files are compiled to
  117. efficient platform-specific binary blobs.</dd>
  118. </dl>
  119. </li>
  120. <li><dl class="first docutils">
  121. <dt>Data-oriented</dt>
  122. <dd>Data in memory is organized to achieve the maximum performance possible on
  123. every platform.</dd>
  124. </dl>
  125. </li>
  126. <li><dl class="first docutils">
  127. <dt>Lightweight codebase and runtime</dt>
  128. <dd>Engine plus tools amounts to less than 50K LOC. Written in simple ‘C-style’
  129. C++. It is easy for anyone to understand and make modifications.</dd>
  130. </dl>
  131. </li>
  132. <li><dl class="first docutils">
  133. <dt>Editor</dt>
  134. <dd><ul class="first last">
  135. <li>Runs and looks equally well both on Linux and on Windows.</li>
  136. <li>Source data importers (meshes, sprites, sounds, textures etc.).</li>
  137. <li>All the editing data is held by the editor which runs in its own process, if the Runtime crashes you can restart it without losing your work.</li>
  138. <li>TCP/IP communication with Runtime allows editing to be mirrored to remote devices (phones, consoles etc.).</li>
  139. <li>Hot-reloading of every asset including code.</li>
  140. </ul>
  141. </dd>
  142. </dl>
  143. </li>
  144. <li><dl class="first docutils">
  145. <dt>Graphics</dt>
  146. <dd><ul class="first last">
  147. <li>High-level 2D and 3D objects: sprites, meshes and lights (directional, omni and spot).</li>
  148. <li>Cross-plaform GLSL-like shader programming language with data-driven definitions of render states and permutations.</li>
  149. <li>D3D11, GL 3.2 and GLES 2.0 render backends.</li>
  150. <li>PNG, TGA, DDS, KTX and PVR texture formats.</li>
  151. </ul>
  152. </dd>
  153. </dl>
  154. </li>
  155. <li><dl class="first docutils">
  156. <dt>Animation</dt>
  157. <dd><ul class="first last">
  158. <li>Animation state machine with events, variables and blending with simple expressions evaluator.</li>
  159. <li>Flipbook sprite animation.</li>
  160. </ul>
  161. </dd>
  162. </dl>
  163. </li>
  164. <li><dl class="first docutils">
  165. <dt>Physics</dt>
  166. <dd><ul class="first last">
  167. <li>Static, dynamic and keyframed rigid bodies, triggers and joints (fixed, spring and hinge).</li>
  168. <li>Spatial queries: ray-, sphere- and box-casts.</li>
  169. <li>Multiple collision geometries per rigid body.</li>
  170. <li>Collision geometry can be generated from mesh data, authored by artists or manually specified.</li>
  171. <li>Uniform scaling of physics objects.</li>
  172. </ul>
  173. </dd>
  174. </dl>
  175. </li>
  176. <li><dl class="first docutils">
  177. <dt>Audio</dt>
  178. <dd><ul class="first last">
  179. <li>3D audio sources with position and range-based attenuation.</li>
  180. <li>Volume control.</li>
  181. <li>WAV format supported.</li>
  182. </ul>
  183. </dd>
  184. </dl>
  185. </li>
  186. <li><dl class="first docutils">
  187. <dt>Scripting</dt>
  188. <dd><ul class="first last">
  189. <li>Integrated Lua runtime can be used to control every aspect of the game.</li>
  190. <li>LuaJIT is used on supported platforms for maximum performance.</li>
  191. <li>Integrated REPL to quickly test and experiment while the game is running.</li>
  192. <li>Live reloading of gameplay code without needing to restart the game.</li>
  193. </ul>
  194. </dd>
  195. </dl>
  196. </li>
  197. <li><dl class="first docutils">
  198. <dt>Debugging</dt>
  199. <dd><ul class="first last">
  200. <li>Integrated profiler.</li>
  201. <li>Callstack generation for C++ and Lua.</li>
  202. </ul>
  203. </dd>
  204. </dl>
  205. </li>
  206. <li><dl class="first docutils">
  207. <dt>Gui</dt>
  208. <dd><ul class="first last">
  209. <li>Immediate-mode GUI with custom materials.</li>
  210. <li>TrueType text rendering via texture atlas.</li>
  211. </ul>
  212. </dd>
  213. </dl>
  214. </li>
  215. <li><dl class="first docutils">
  216. <dt>Input</dt>
  217. <dd><ul class="first last">
  218. <li>Unified interface for accessing mice, keyboards, touchpads and joypads.</li>
  219. </ul>
  220. </dd>
  221. </dl>
  222. </li>
  223. <li><dl class="first docutils">
  224. <dt>Exporters</dt>
  225. <dd><ul class="first last">
  226. <li>Mesh exporter for Blender &gt;= 2.80.</li>
  227. </ul>
  228. </dd>
  229. </dl>
  230. </li>
  231. </ul>
  232. </div>
  233. <div class="section" id="supported-platforms">
  234. <h2>Supported platforms<a class="headerlink" href="#supported-platforms" title="Permalink to this headline">¶</a></h2>
  235. <ul class="simple">
  236. <li><dl class="first docutils">
  237. <dt>Runtime</dt>
  238. <dd><ul class="first last">
  239. <li>Android 7.0+ (ARMv7-a, ARMv8-a)</li>
  240. <li>Ubuntu 18.04+ (x86_64)</li>
  241. <li>Windows 7, 8, 10 (x86_64)</li>
  242. </ul>
  243. </dd>
  244. </dl>
  245. </li>
  246. <li><dl class="first docutils">
  247. <dt>Editor</dt>
  248. <dd><ul class="first last">
  249. <li>Any 64-bit Linux distribution with GTK+ 3.22 or newer, 64-bit Ubuntu 18.04+ recommended</li>
  250. <li>64-bit dual-core CPU or higher</li>
  251. <li>OpenGL 3.2+ graphics card with 512 MB of RAM, 1 GB recommended</li>
  252. <li>4 GB of RAM minimum, 8 GB recommended</li>
  253. <li>1366x768 display resolution minimum, 1920x1080 recommended</li>
  254. <li>Three-button mouse</li>
  255. </ul>
  256. </dd>
  257. </dl>
  258. </li>
  259. </ul>
  260. </div>
  261. <div class="section" id="contact">
  262. <h2>Contact<a class="headerlink" href="#contact" title="Permalink to this headline">¶</a></h2>
  263. <ul class="simple">
  264. <li>Daniele Bartolini (<a class="reference external" href="https://twitter.com/aa_dani_bart">&#64;aa_dani_bart</a>)</li>
  265. <li>Project page: <a class="reference external" href="https://github.com/crownengine/crown">https://github.com/crownengine/crown</a></li>
  266. <li>Website: <a class="reference external" href="https://www.crownengine.org">https://www.crownengine.org</a></li>
  267. </ul>
  268. </div>
  269. <div class="section" id="contributors">
  270. <h2>Contributors<a class="headerlink" href="#contributors" title="Permalink to this headline">¶</a></h2>
  271. <p>In chronological order.</p>
  272. <ul class="simple">
  273. <li>Daniele Bartolini (<a class="reference external" href="https://github.com/dbartolini">&#64;dbartolini</a>)</li>
  274. <li>Simone Boscaratto (<a class="reference external" href="https://github.com/Xed89">&#64;Xed89</a>)</li>
  275. <li>Michele Rossi (<a class="reference external" href="https://github.com/mikymod">&#64;mikymod</a>)</li>
  276. <li>Michela Iacchelli - Crown logo v1.</li>
  277. <li>Raphael de Vasconcelos Nascimento (<a class="reference external" href="https://github.com/vasconssa">&#64;vasconssa</a>)</li>
  278. <li>Giulia Gazzoli - Crown logo v2.</li>
  279. </ul>
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