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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Gamedev Framework (gf): Direction.h Source File</title>
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<div id="projectname">Gamedev Framework (gf)<span id="projectnumber"> 0.21.0</span>
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<div id="projectbrief">A C++17 framework for 2D games</div>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_6d069d519ae9d12fa11dd8e685586b60.html">gf</a></li> </ul>
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<div class="headertitle"><div class="title">Direction.h</div></div>
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<div class="contents">
<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Gamedev Framework (gf)</span></div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * Copyright (C) 2016-2021 Julien Bernard</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> *</span></div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * This software is provided 'as-is', without any express or implied</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * warranty. In no event will the authors be held liable for any damages</span></div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * arising from the use of this software.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> *</span></div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> * Permission is granted to anyone to use this software for any purpose,</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * including commercial applications, and to alter it and redistribute it</span></div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> * freely, subject to the following restrictions:</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> *</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * 1. The origin of this software must not be misrepresented; you must not</span></div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * claim that you wrote the original software. If you use this software</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * in a product, an acknowledgment in the product documentation would be</span></div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * appreciated but is not required.</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * 2. Altered source versions must be plainly marked as such, and must not be</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> * misrepresented as being the original software.</span></div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="comment"> * 3. This notice may not be removed or altered from any source distribution.</span></div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="comment"> */</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#ifndef GF_DIRECTION_H</span></div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span><span class="preprocessor">#define GF_DIRECTION_H</span></div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span><span class="preprocessor">#include <cstdint></span></div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include "CoreApi.h"</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include "Vector.h"</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacegf.html">gf</a> {</div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">inline</span> <span class="keyword">namespace </span>v1 {</div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"><a class="line" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7"> 43</a></span> <span class="keyword">enum class</span> <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> : int8_t {</div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <a class="code hl_enumvalue" href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa4f1f6016fc9f3f2353c0cc7c67b292bd">Center</a> = -1, </div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> <a class="code hl_enumvalue" href="group__core__geometry.html#ggac329dbff4c111070b2896762f90ab3a7a258f49887ef8d14ac268c92b02503aaa">Up</a> = 0, </div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <a class="code hl_enumvalue" href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa92b09c7c48c520c3c55e497875da437c">Right</a> = 1, </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <a class="code hl_enumvalue" href="group__core__geometry.html#ggac329dbff4c111070b2896762f90ab3a7a08a38277b0309070706f6652eeae9a53">Down</a> = 2, </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <a class="code hl_enumvalue" href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa945d5e233cf7d6240f6b783b36a374ff">Left</a> = 3, </div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> };</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="group__core__geometry.html#gae1e3ccc0762abccc8366d780cad4b20c"> 58</a></span> GF_CORE_API <a class="code hl_class" href="structgf_1_1_vector.html">Vector2f</a> <a class="code hl_function" href="group__core__geometry.html#gae1e3ccc0762abccc8366d780cad4b20c">unit</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga0c82059cefe99d77c738b1ce6784e869"> 71</a></span> GF_CORE_API <a class="code hl_class" href="structgf_1_1_vector.html">Vector2i</a> <a class="code hl_function" href="group__core__geometry.html#ga0c82059cefe99d77c738b1ce6784e869">displacement</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga7795028cc80c197a8c77700598c7ec09"> 82</a></span> GF_CORE_API <span class="keywordtype">float</span> <a class="code hl_function" href="group__core__geometry.html#ga7795028cc80c197a8c77700598c7ec09">angle</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga8da4002a31182f20257bff22629defe5"> 91</a></span> GF_CORE_API <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> <a class="code hl_function" href="group__core__geometry.html#ga8da4002a31182f20257bff22629defe5">opposite</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga60e087291110a0c5d9ceedfc699dcf4e"> 100</a></span> GF_CORE_API <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> <a class="code hl_function" href="group__core__geometry.html#ga60e087291110a0c5d9ceedfc699dcf4e">orthogonalCW</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga9c18d3771f6717ec508fa3c692797245"> 109</a></span> GF_CORE_API <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> <a class="code hl_function" href="group__core__geometry.html#ga9c18d3771f6717ec508fa3c692797245">orthogonalCCW</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"><a class="line" href="group__core__geometry.html#ga841784c0b461fb1cb5be4e08212d091c"> 118</a></span> GF_CORE_API <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> <a class="code hl_function" href="group__core__geometry.html#ga841784c0b461fb1cb5be4e08212d091c">nextCW</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"><a class="line" href="group__core__geometry.html#gadae48bff76eecd3f9e103ddd595df704"> 127</a></span> GF_CORE_API <a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> <a class="code hl_function" href="group__core__geometry.html#gadae48bff76eecd3f9e103ddd595df704">nextCCW</a>(<a class="code hl_enumeration" href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">Direction</a> direction);</div>
<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS</span></div>
<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>}</div>
<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span>}</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span><span class="preprocessor">#endif </span><span class="comment">// GF_DIRECTION_H</span></div>
<div class="ttc" id="agroup__core__geometry_html_ga0c82059cefe99d77c738b1ce6784e869"><div class="ttname"><a href="group__core__geometry.html#ga0c82059cefe99d77c738b1ce6784e869">gf::displacement</a></div><div class="ttdeci">GF_CORE_API Vector2i displacement(Direction direction)</div><div class="ttdoc">Get a vector from a direction.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ga60e087291110a0c5d9ceedfc699dcf4e"><div class="ttname"><a href="group__core__geometry.html#ga60e087291110a0c5d9ceedfc699dcf4e">gf::orthogonalCW</a></div><div class="ttdeci">GF_CORE_API Direction orthogonalCW(Direction direction)</div><div class="ttdoc">Get the orthogonal direction clockwise.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ga7795028cc80c197a8c77700598c7ec09"><div class="ttname"><a href="group__core__geometry.html#ga7795028cc80c197a8c77700598c7ec09">gf::angle</a></div><div class="ttdeci">GF_CORE_API float angle(Direction direction)</div><div class="ttdoc">Get an angle from a direction.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ga841784c0b461fb1cb5be4e08212d091c"><div class="ttname"><a href="group__core__geometry.html#ga841784c0b461fb1cb5be4e08212d091c">gf::nextCW</a></div><div class="ttdeci">GF_CORE_API Direction nextCW(Direction direction)</div><div class="ttdoc">Get the next direction clockwise.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ga8da4002a31182f20257bff22629defe5"><div class="ttname"><a href="group__core__geometry.html#ga8da4002a31182f20257bff22629defe5">gf::opposite</a></div><div class="ttdeci">GF_CORE_API Direction opposite(Direction direction)</div><div class="ttdoc">Get the opposite direction.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ga9c18d3771f6717ec508fa3c692797245"><div class="ttname"><a href="group__core__geometry.html#ga9c18d3771f6717ec508fa3c692797245">gf::orthogonalCCW</a></div><div class="ttdeci">GF_CORE_API Direction orthogonalCCW(Direction direction)</div><div class="ttdoc">Get the orthogonal direction counter-clockwise.</div></div>
<div class="ttc" id="agroup__core__geometry_html_gac329dbff4c111070b2896762f90ab3a7"><div class="ttname"><a href="group__core__geometry.html#gac329dbff4c111070b2896762f90ab3a7">gf::Direction</a></div><div class="ttdeci">Direction</div><div class="ttdoc">Main four directions.</div><div class="ttdef"><b>Definition:</b> Direction.h:43</div></div>
<div class="ttc" id="agroup__core__geometry_html_gadae48bff76eecd3f9e103ddd595df704"><div class="ttname"><a href="group__core__geometry.html#gadae48bff76eecd3f9e103ddd595df704">gf::nextCCW</a></div><div class="ttdeci">GF_CORE_API Direction nextCCW(Direction direction)</div><div class="ttdoc">Get the next direction counter-clockwise.</div></div>
<div class="ttc" id="agroup__core__geometry_html_gae1e3ccc0762abccc8366d780cad4b20c"><div class="ttname"><a href="group__core__geometry.html#gae1e3ccc0762abccc8366d780cad4b20c">gf::unit</a></div><div class="ttdeci">GF_CORE_API Vector2f unit(Direction direction)</div><div class="ttdoc">Get a unit vector from a direction.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ggac329dbff4c111070b2896762f90ab3a7a08a38277b0309070706f6652eeae9a53"><div class="ttname"><a href="group__core__geometry.html#ggac329dbff4c111070b2896762f90ab3a7a08a38277b0309070706f6652eeae9a53">gf::Direction::Down</a></div><div class="ttdeci">@ Down</div><div class="ttdoc">The down direction.</div></div>
<div class="ttc" id="agroup__core__geometry_html_ggac329dbff4c111070b2896762f90ab3a7a258f49887ef8d14ac268c92b02503aaa"><div class="ttname"><a href="group__core__geometry.html#ggac329dbff4c111070b2896762f90ab3a7a258f49887ef8d14ac268c92b02503aaa">gf::Direction::Up</a></div><div class="ttdeci">@ Up</div><div class="ttdoc">The up direction.</div></div>
<div class="ttc" id="agroup__graphics__text_html_gga5229ccbffec1016d760ddfe296fd2edfa4f1f6016fc9f3f2353c0cc7c67b292bd"><div class="ttname"><a href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa4f1f6016fc9f3f2353c0cc7c67b292bd">gf::Alignment::Center</a></div><div class="ttdeci">@ Center</div><div class="ttdoc">Centered alignment.</div></div>
<div class="ttc" id="agroup__graphics__text_html_gga5229ccbffec1016d760ddfe296fd2edfa92b09c7c48c520c3c55e497875da437c"><div class="ttname"><a href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa92b09c7c48c520c3c55e497875da437c">gf::Alignment::Right</a></div><div class="ttdeci">@ Right</div><div class="ttdoc">Right alignement.</div></div>
<div class="ttc" id="agroup__graphics__text_html_gga5229ccbffec1016d760ddfe296fd2edfa945d5e233cf7d6240f6b783b36a374ff"><div class="ttname"><a href="group__graphics__text.html#gga5229ccbffec1016d760ddfe296fd2edfa945d5e233cf7d6240f6b783b36a374ff">gf::Alignment::Left</a></div><div class="ttdeci">@ Left</div><div class="ttdoc">Left alignement.</div></div>
<div class="ttc" id="anamespacegf_html"><div class="ttname"><a href="namespacegf.html">gf</a></div><div class="ttdoc">The namespace for gf classes.</div><div class="ttdef"><b>Definition:</b> Action.h:35</div></div>
<div class="ttc" id="astructgf_1_1_vector_html"><div class="ttname"><a href="structgf_1_1_vector.html">gf::Vector< float, 2 ></a></div></div>
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