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<title>Gamedev Framework (gf): Tween.h Source File</title>
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<div id="projectname">Gamedev Framework (gf)
 <span id="projectnumber">0.5.0</span>
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<div id="projectbrief">A C++11 framework for 2D games</div>
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<div class="title">Tween.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Gamedev Framework (gf)</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (C) 2016-2017 Julien Bernard</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div><div class="line"><a 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 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 name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * arising from the use of this software.</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *</span></div><div class="line"><a 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 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 name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * freely, subject to the following restrictions:</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div><div class="line"><a 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 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 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 name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * appreciated but is not required.</span></div><div class="line"><a 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 name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * misrepresented as being the original software.</span></div><div class="line"><a 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 name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef GF_TWEEN_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#define GF_TWEEN_H</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <functional></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "Easings.h"</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span><a class="code" href="namespacegf.html">gf</a> {</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">inline</span> <span class="keyword">namespace </span>v1 {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keyword">template</span><<span class="keyword">typename</span> T></div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html"> 40</a></span>  <span class="keyword">class </span><a class="code" href="classgf_1_1_tween.html">Tween</a> {</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a0527f82a15d8700977160a9882ac41c2"> 45</a></span>  <span class="keyword">using</span> <a class="code" href="classgf_1_1_tween.html#a0527f82a15d8700977160a9882ac41c2">Setter</a> = std::function<void(const T&)>;</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a3a61339227294936693f8dbccf3d2461"> 56</a></span>  <a class="code" href="classgf_1_1_tween.html#a3a61339227294936693f8dbccf3d2461">Tween</a>(<a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> origin, <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> target, <a class="code" href="classgf_1_1_tween.html#a0527f82a15d8700977160a9882ac41c2">Setter</a> setter, <a class="code" href="classgf_1_1_time.html">Time</a> duration, <a class="code" href="group__core.html#ga956e20c5e2e9435c5c40dda37f672f32">Easing</a> easing = <a class="code" href="classgf_1_1_ease.html#a1edd726a738d4c05c10386932fd8d904">Ease::linear</a>)</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  : m_origin(origin)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  , m_target(target)</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  , m_setter(setter)</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  , m_elapsed() <span class="comment">// 0</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  , m_duration(duration)</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  , m_easing(easing)</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  }</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div><div class="line"><a name="l00076"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#ab065e9472ee1a7449d57ee2b8edd83da"> 76</a></span>  <a class="code" href="classgf_1_1_tween.html#ab065e9472ee1a7449d57ee2b8edd83da">Tween</a>(<a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> origin, <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> target, <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a>& value, <a class="code" href="classgf_1_1_time.html">Time</a> duration, <a class="code" href="group__core.html#ga956e20c5e2e9435c5c40dda37f672f32">Easing</a> easing = <a class="code" href="classgf_1_1_ease.html#a1edd726a738d4c05c10386932fd8d904">Ease::linear</a>)</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  : m_origin(origin)</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  , m_target(target)</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  , m_setter([&value](const <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a>& newValue) { value = newValue; })</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  , m_elapsed() <span class="comment">// 0</span></div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  , m_duration(duration)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  , m_easing(easing)</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  {</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  }</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a742f1566b783614a19e179903753afaf"> 92</a></span>  <span class="keywordtype">void</span> <a class="code" href="classgf_1_1_tween.html#a742f1566b783614a19e179903753afaf">setOrigin</a>(<a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> origin) {</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  m_origin = origin;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#ad597140125442fb88443b0223a8acef1"> 101</a></span>  constexpr <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> <a class="code" href="classgf_1_1_tween.html#ad597140125442fb88443b0223a8acef1">getOrigin</a>() const noexcept {</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span> m_origin;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  }</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a9e94f4d0b712fb6fd2ac2ceef22461d3"> 110</a></span>  <span class="keywordtype">void</span> <a class="code" href="classgf_1_1_tween.html#a9e94f4d0b712fb6fd2ac2ceef22461d3">setTarget</a>(<a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> target) {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  m_target = target;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a627a14d2341ab7dcb1985244ce02c894"> 119</a></span>  constexpr <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> <a class="code" href="classgf_1_1_tween.html#a627a14d2341ab7dcb1985244ce02c894">getTarget</a>() const noexcept {</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> m_target;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  }</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a6d3050fa67390e7cacd182ca163a8cf9"> 128</a></span>  <span class="keywordtype">void</span> <a class="code" href="classgf_1_1_tween.html#a6d3050fa67390e7cacd182ca163a8cf9">setDuration</a>(<a class="code" href="classgf_1_1_time.html">Time</a> duration) {</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  m_duration = duration;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  }</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a336ea283fd1d7065821cb44d1197ceab"> 137</a></span>  constexpr <a class="code" href="classgf_1_1_time.html">Time</a> <a class="code" href="classgf_1_1_tween.html#a336ea283fd1d7065821cb44d1197ceab">getDuration</a>() const noexcept {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> m_duration;</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00146"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#accbf060fd77cd02edbbcff0fcda17219"> 146</a></span>  <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> <a class="code" href="classgf_1_1_tween.html#accbf060fd77cd02edbbcff0fcda17219">getValue</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> <a class="code" href="group__core.html#gac274bd90d63716ed5b514331c90288e9">gf::lerp</a>(m_origin, m_target, m_easing(m_elapsed.asSeconds() / m_duration.asSeconds()));</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  }</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a5bf0fff3e3741374e8110caa0d48ab24"> 155</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classgf_1_1_tween.html#a5bf0fff3e3741374e8110caa0d48ab24">isFinished</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordflow">return</span> m_elapsed >= m_duration;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  }</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span> </div><div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#aa165edd7357b3e385388fbf459feffa3"> 164</a></span>  <span class="keywordtype">void</span> <a class="code" href="classgf_1_1_tween.html#aa165edd7357b3e385388fbf459feffa3">update</a>(<a class="code" href="classgf_1_1_time.html">Time</a> time) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  m_elapsed += time;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> (m_elapsed >= m_duration) {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  m_elapsed = m_duration;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  m_setter(getValue());</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> </div><div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="classgf_1_1_tween.html#a3a3f3d305a3f087fbf164a73fa9e9c1a"> 177</a></span>  <span class="keywordtype">void</span> <a class="code" href="classgf_1_1_tween.html#a3a3f3d305a3f087fbf164a73fa9e9c1a">restart</a>() {</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  m_elapsed = <a class="code" href="classgf_1_1_time.html#acf6ddcec65d12c7bb9797089d7209217">Time::zero</a>();</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> m_origin;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">T</a> m_target;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="classgf_1_1_tween.html#a0527f82a15d8700977160a9882ac41c2">Setter</a> m_setter;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <a class="code" href="classgf_1_1_time.html">Time</a> m_elapsed;</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classgf_1_1_time.html">Time</a> m_duration;</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="group__core.html#ga956e20c5e2e9435c5c40dda37f672f32">Easing</a> m_easing;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  };</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> <span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS</span></div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> }</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> }</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="preprocessor">#endif // GF_TWEEN_H</span></div><div class="ttc" id="group__window_html_gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3"><div class="ttname"><a href="group__window.html#gga795d7d5e2f2a4f38b16b95e0e78cb626ab9ece18c950afbfa6b0fdbfa4ff731d3">gf::Scancode::T</a></div></div>
<div class="ttc" id="classgf_1_1_tween_html_a742f1566b783614a19e179903753afaf"><div class="ttname"><a href="classgf_1_1_tween.html#a742f1566b783614a19e179903753afaf">gf::Tween::setOrigin</a></div><div class="ttdeci">void setOrigin(T origin)</div><div class="ttdoc">Change the origin of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:92</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a3a61339227294936693f8dbccf3d2461"><div class="ttname"><a href="classgf_1_1_tween.html#a3a61339227294936693f8dbccf3d2461">gf::Tween::Tween</a></div><div class="ttdeci">Tween(T origin, T target, Setter setter, Time duration, Easing easing=Ease::linear)</div><div class="ttdoc">Constructor with a setter. </div><div class="ttdef"><b>Definition:</b> Tween.h:56</div></div>
<div class="ttc" id="classgf_1_1_time_html_acf6ddcec65d12c7bb9797089d7209217"><div class="ttname"><a href="classgf_1_1_time.html#acf6ddcec65d12c7bb9797089d7209217">gf::Time::zero</a></div><div class="ttdeci">static constexpr Time zero()</div><div class="ttdef"><b>Definition:</b> Time.h:163</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a3a3f3d305a3f087fbf164a73fa9e9c1a"><div class="ttname"><a href="classgf_1_1_tween.html#a3a3f3d305a3f087fbf164a73fa9e9c1a">gf::Tween::restart</a></div><div class="ttdeci">void restart()</div><div class="ttdoc">Restart the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:177</div></div>
<div class="ttc" id="group__core_html_gac274bd90d63716ed5b514331c90288e9"><div class="ttname"><a href="group__core.html#gac274bd90d63716ed5b514331c90288e9">gf::lerp</a></div><div class="ttdeci">T lerp(T lhs, T rhs, U t)</div><div class="ttdoc">Linear interpolation function. </div><div class="ttdef"><b>Definition:</b> Math.h:242</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a5bf0fff3e3741374e8110caa0d48ab24"><div class="ttname"><a href="classgf_1_1_tween.html#a5bf0fff3e3741374e8110caa0d48ab24">gf::Tween::isFinished</a></div><div class="ttdeci">bool isFinished() const</div><div class="ttdoc">Check if the tween is finished. </div><div class="ttdef"><b>Definition:</b> Tween.h:155</div></div>
<div class="ttc" id="classgf_1_1_time_html"><div class="ttname"><a href="classgf_1_1_time.html">gf::Time</a></div><div class="ttdoc">Represents a time value. </div><div class="ttdef"><b>Definition:</b> Time.h:73</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a6d3050fa67390e7cacd182ca163a8cf9"><div class="ttname"><a href="classgf_1_1_tween.html#a6d3050fa67390e7cacd182ca163a8cf9">gf::Tween::setDuration</a></div><div class="ttdeci">void setDuration(Time duration)</div><div class="ttdoc">Change the duration of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:128</div></div>
<div class="ttc" id="classgf_1_1_tween_html_ad597140125442fb88443b0223a8acef1"><div class="ttname"><a href="classgf_1_1_tween.html#ad597140125442fb88443b0223a8acef1">gf::Tween::getOrigin</a></div><div class="ttdeci">constexpr T getOrigin() const noexcept</div><div class="ttdoc">Get the origin of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:101</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a9e94f4d0b712fb6fd2ac2ceef22461d3"><div class="ttname"><a href="classgf_1_1_tween.html#a9e94f4d0b712fb6fd2ac2ceef22461d3">gf::Tween::setTarget</a></div><div class="ttdeci">void setTarget(T target)</div><div class="ttdoc">Change the target of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:110</div></div>
<div class="ttc" id="namespacegf_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:34</div></div>
<div class="ttc" id="classgf_1_1_ease_html_a1edd726a738d4c05c10386932fd8d904"><div class="ttname"><a href="classgf_1_1_ease.html#a1edd726a738d4c05c10386932fd8d904">gf::Ease::linear</a></div><div class="ttdeci">static float linear(float t)</div><div class="ttdoc">Linear easing. </div></div>
<div class="ttc" id="classgf_1_1_tween_html_a627a14d2341ab7dcb1985244ce02c894"><div class="ttname"><a href="classgf_1_1_tween.html#a627a14d2341ab7dcb1985244ce02c894">gf::Tween::getTarget</a></div><div class="ttdeci">constexpr T getTarget() const noexcept</div><div class="ttdoc">Get the target of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:119</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a336ea283fd1d7065821cb44d1197ceab"><div class="ttname"><a href="classgf_1_1_tween.html#a336ea283fd1d7065821cb44d1197ceab">gf::Tween::getDuration</a></div><div class="ttdeci">constexpr Time getDuration() const noexcept</div><div class="ttdoc">Get the duration of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:137</div></div>
<div class="ttc" id="classgf_1_1_tween_html_ab065e9472ee1a7449d57ee2b8edd83da"><div class="ttname"><a href="classgf_1_1_tween.html#ab065e9472ee1a7449d57ee2b8edd83da">gf::Tween::Tween</a></div><div class="ttdeci">Tween(T origin, T target, T &value, Time duration, Easing easing=Ease::linear)</div><div class="ttdoc">Constructor with a reference. </div><div class="ttdef"><b>Definition:</b> Tween.h:76</div></div>
<div class="ttc" id="group__core_html_ga956e20c5e2e9435c5c40dda37f672f32"><div class="ttname"><a href="group__core.html#ga956e20c5e2e9435c5c40dda37f672f32">gf::Easing</a></div><div class="ttdeci">float(*)(float) Easing</div><div class="ttdoc">An easing function. </div><div class="ttdef"><b>Definition:</b> Easings.h:51</div></div>
<div class="ttc" id="classgf_1_1_tween_html_aa165edd7357b3e385388fbf459feffa3"><div class="ttname"><a href="classgf_1_1_tween.html#aa165edd7357b3e385388fbf459feffa3">gf::Tween::update</a></div><div class="ttdeci">void update(Time time)</div><div class="ttdoc">Update the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:164</div></div>
<div class="ttc" id="classgf_1_1_tween_html"><div class="ttname"><a href="classgf_1_1_tween.html">gf::Tween</a></div><div class="ttdoc">An interpolation between two values. </div><div class="ttdef"><b>Definition:</b> Tween.h:40</div></div>
<div class="ttc" id="classgf_1_1_tween_html_a0527f82a15d8700977160a9882ac41c2"><div class="ttname"><a href="classgf_1_1_tween.html#a0527f82a15d8700977160a9882ac41c2">gf::Tween< Vector< float, 4 > >::Setter</a></div><div class="ttdeci">std::function< void(const Vector< float, 4 > &)> Setter</div><div class="ttdoc">A setter function. </div><div class="ttdef"><b>Definition:</b> Tween.h:45</div></div>
<div class="ttc" id="classgf_1_1_tween_html_accbf060fd77cd02edbbcff0fcda17219"><div class="ttname"><a href="classgf_1_1_tween.html#accbf060fd77cd02edbbcff0fcda17219">gf::Tween::getValue</a></div><div class="ttdeci">T getValue() const</div><div class="ttdoc">Get the current value of the tween. </div><div class="ttdef"><b>Definition:</b> Tween.h:146</div></div>
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