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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_66e9674e8206a335795995fa32a03c91.html">entt</a></li><li class="navelem"><a class="el" href="dir_e3a7bb56c55e5c2286e2fe96e197d4f5.html">entity</a></li> </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef ENTT_ENTITY_SNAPSHOT_HPP</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define ENTT_ENTITY_SNAPSHOT_HPP</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> </div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include <array></span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include <cstddef></span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor">#include <utility></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include <cassert></span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="preprocessor">#include <iterator></span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <type_traits></span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#include <unordered_map></span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "../config/config.h"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "entt_traits.hpp"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "utility.hpp"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">namespace </span><a class="code" href="namespaceentt.html">entt</a> {</div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">template</span><<span class="keyword">typename</span>></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">class </span>Registry;</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> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">template</span><<span class="keyword">typename</span> Entity></div><div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html"> 38</a></span> <span class="keyword">class </span><a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> final {</div><div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#a200646cfe88496da691aab5f61c0fa69"> 40</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classentt_1_1Registry.html">Registry</a><Entity>;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keyword">using</span> follow_fn_type = Entity(<span class="keyword">const</span> <a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &, <span class="keyword">const</span> Entity);</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &registry, Entity seed, follow_fn_type *follow) ENTT_NOEXCEPT</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  : registry{registry},</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  seed{seed},</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  follow{follow}</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  {}</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Component, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span> It></div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">void</span> <span class="keyword">get</span>(Archive &archive, std::size_t sz, It first, It last) <span class="keyword">const</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  archive(static_cast<Entity>(sz));</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">while</span>(first != last) {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">const</span> <span class="keyword">auto</span> entity = *(first++);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">if</span>(registry.template has<Component>(entity)) {</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  archive(entity, registry.template get<Component>(entity));</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  }</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Component, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span> It, std::size_t... Indexes></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordtype">void</span> component(Archive &archive, It first, It last, std::index_sequence<Indexes...>)<span class="keyword"> const </span>{</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  std::array<std::size_t, <span class="keyword">sizeof</span>...(Indexes)> size{};</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keyword">auto</span> begin = first;</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">while</span>(begin != last) {</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">const</span> <span class="keyword">auto</span> entity = *(begin++);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">using</span> accumulator_type = std::size_t[];</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  accumulator_type accumulator = { (registry.template has<Component>(entity) ? ++size[Indexes] : size[Indexes])... };</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  (void)accumulator;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  accumulator_type accumulator = { (get<Component>(archive, size[Indexes], first, last), 0)... };</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  (void)accumulator;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> </div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a>(<a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#aa77d63e06c40969adca662fca3a2ca08"> 102</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#aa77d63e06c40969adca662fca3a2ca08">entities</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  archive(static_cast<Entity>(registry.size()));</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  registry.each([&archive](<span class="keyword">const</span> <span class="keyword">auto</span> entity) { archive(entity); });</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#ac7d571f0901df2476451e2fd26d9dab9"> 119</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#ac7d571f0901df2476451e2fd26d9dab9">destroyed</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">auto</span> size = registry.capacity() - registry.size();</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  archive(static_cast<Entity>(size));</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">auto</span> curr = seed;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">for</span>(; size; --size) {</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  archive(curr);</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  curr = follow(registry, curr);</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</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="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Component, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#a336288f5faaeb5f49831e3a0b4445bb0"> 144</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#a336288f5faaeb5f49831e3a0b4445bb0">component</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">const</span> <span class="keyword">auto</span> sz = registry.template size<Component>();</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">const</span> <span class="keyword">auto</span> *<a class="code" href="classentt_1_1Snapshot.html#aa77d63e06c40969adca662fca3a2ca08">entities</a> = registry.template data<Component>();</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> </div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  archive(static_cast<Entity>(sz));</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">for</span>(std::remove_const_t<decltype(sz)> i{}; i < sz; ++i) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">const</span> <span class="keyword">auto</span> entity = entities[i];</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  archive(entity, registry.template get<Component>(entity));</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  };</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  }</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Component, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  std::enable_if_t<(<span class="keyword">sizeof</span>...(Component) > 1), <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &></div><div class="line"><a name="l00171"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#a4aa8df6d1e59c4f441e472f63f5ee580"> 171</a></span>  <a class="code" href="classentt_1_1Snapshot.html#a4aa8df6d1e59c4f441e472f63f5ee580">component</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  accumulator_type accumulator = { 0, (component<Component>(archive), 0)... };</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  (void)accumulator;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Component, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span> It></div><div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#a98433fc64a9935e744a4c1b1f5d6e630"> 193</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#a98433fc64a9935e744a4c1b1f5d6e630">component</a>(Archive &archive, It first, It last)<span class="keyword"> const </span>{</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  component<Component...>(archive, first, last, std::make_index_sequence<<span class="keyword">sizeof</span>...(Component)>{});</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> </div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Tag, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#ac13d5fe79511e27f7b935e84c112e051"> 210</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> & <a class="code" href="classentt_1_1Snapshot.html#ac13d5fe79511e27f7b935e84c112e051">tag</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">const</span> <span class="keywordtype">bool</span> has = registry.template has<Tag>();</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="comment">// numerical length is forced for tags to facilitate loading</span></div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  archive(has ? Entity(1): Entity{});</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">if</span>(has) {</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  archive(registry.template attachee<Tag>(), registry.template get<Tag>());</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  }</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> </div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> </div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Tag, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  std::enable_if_t<(<span class="keyword">sizeof</span>...(Tag) > 1), <span class="keyword">const</span> <a class="code" href="classentt_1_1Snapshot.html">Snapshot</a> &></div><div class="line"><a name="l00236"></a><span class="lineno"><a class="line" href="classentt_1_1Snapshot.html#a960471c2f13bc1c693a9c58396e63b93"> 236</a></span>  <a class="code" href="classentt_1_1Snapshot.html#a960471c2f13bc1c693a9c58396e63b93">tag</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  accumulator_type accumulator = { 0, (tag<Tag>(archive), 0)... };</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  (void)accumulator;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  }</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> </div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &registry;</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keyword">const</span> Entity seed;</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  follow_fn_type *follow;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span> };</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span> </div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keyword">template</span><<span class="keyword">typename</span> Entity></div><div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html"> 261</a></span> <span class="keyword">class </span><a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> final {</div><div class="line"><a name="l00263"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#a200646cfe88496da691aab5f61c0fa69"> 263</a></span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classentt_1_1Registry.html">Registry</a><Entity>;</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">using</span> assure_fn_type = void(<a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &, <span class="keyword">const</span> Entity, <span class="keyword">const</span> <span class="keywordtype">bool</span>);</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span> </div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a>(<a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &registry, assure_fn_type *assure_fn) ENTT_NOEXCEPT</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  : registry{registry},</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  assure_fn{assure_fn}</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  {</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="comment">// restore a snapshot as a whole requires a clean registry</span></div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  assert(!registry.capacity());</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> </div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordtype">void</span> assure(Archive &archive, <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1Snapshot.html#ac7d571f0901df2476451e2fd26d9dab9">destroyed</a>)<span class="keyword"> const </span>{</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  Entity length{};</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  archive(length);</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">while</span>(length--) {</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  Entity entity{};</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  archive(entity);</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  assure_fn(registry, entity, destroyed);</div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  }</div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  }</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span>... Args></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  <span class="keywordtype">void</span> assign(Archive &archive, Args... args)<span class="keyword"> const </span>{</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  Entity length{};</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  archive(length);</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> </div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">while</span>(length--) {</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  Entity entity{};</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  Type instance{};</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  archive(entity, instance);</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keyword">static</span> constexpr <span class="keyword">auto</span> destroyed = <span class="keyword">false</span>;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  assure_fn(registry, entity, destroyed);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  registry.template assign<Type>(args..., entity, <span class="keyword">static_cast<</span><span class="keyword">const </span>Type &<span class="keyword">></span>(instance));</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  }</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span> </div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a>(<a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> </div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00324"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#a7bff030b50995a78f79217eecfb90535"> 324</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1SnapshotLoader.html#a7bff030b50995a78f79217eecfb90535">entities</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keyword">static</span> constexpr <span class="keyword">auto</span> destroyed = <span class="keyword">false</span>;</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  assure(archive, destroyed);</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  }</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span> </div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00341"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#a094ec796643b2c7422533c24e80963f3"> 341</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1SnapshotLoader.html#a094ec796643b2c7422533c24e80963f3">destroyed</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  <span class="keyword">static</span> constexpr <span class="keyword">auto</span> destroyed = <span class="keyword">true</span>;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  assure(archive, destroyed);</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  }</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span> </div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Component, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00361"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#a03f291aa5216eab207780f785a75bbba"> 361</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1SnapshotLoader.html#a03f291aa5216eab207780f785a75bbba">component</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  accumulator_type accumulator = { 0, (assign<Component>(archive), 0)... };</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  (void)accumulator;</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  }</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Tag, <span class="keyword">typename</span> Archive></div><div class="line"><a name="l00382"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#afc4964c76a8fc7a8a1c6a435babc796f"> 382</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1SnapshotLoader.html#afc4964c76a8fc7a8a1c6a435babc796f">tag</a>(Archive &archive)<span class="keyword"> const </span>{</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  accumulator_type accumulator = { 0, (assign<Tag>(archive, <a class="code" href="structentt_1_1tag__t.html">tag_t</a>{}), 0)... };</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  (void)accumulator;</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  }</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span> </div><div class="line"><a name="l00399"></a><span class="lineno"><a class="line" href="classentt_1_1SnapshotLoader.html#a70e3af34bfacf921a2579b1d0055ceca"> 399</a></span>  <span class="keyword">const</span> <a class="code" href="classentt_1_1SnapshotLoader.html">SnapshotLoader</a> & <a class="code" href="classentt_1_1SnapshotLoader.html#a70e3af34bfacf921a2579b1d0055ceca">orphans</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  registry.<a class="code" href="classentt_1_1SnapshotLoader.html#a70e3af34bfacf921a2579b1d0055ceca">orphans</a>([<span class="keyword">this</span>](<span class="keyword">const</span> <span class="keyword">auto</span> entity) {</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  registry.destroy(entity);</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  });</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span> </div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  }</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span> </div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &registry;</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  assure_fn_type *assure_fn;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span> };</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span> </div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span> </div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> <span class="keyword">template</span><<span class="keyword">typename</span> Entity></div><div class="line"><a name="l00430"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html"> 430</a></span> <span class="keyword">class </span><a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> final {</div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keyword">using</span> <a class="code" href="structentt_1_1entt__traits.html">traits_type</a> = <a class="code" href="structentt_1_1entt__traits.html">entt_traits<Entity></a>;</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span> </div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordtype">void</span> destroy(Entity entity) {</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <span class="keyword">const</span> <span class="keyword">auto</span> it = remloc.find(entity);</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordflow">if</span>(it == remloc.cend()) {</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keyword">const</span> <span class="keyword">auto</span> local = registry.create();</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  remloc.emplace(entity, std::make_pair(local, <span class="keyword">true</span>));</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  registry.destroy(local);</div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  }</div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span> </div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">void</span> restore(Entity entity) {</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="keyword">const</span> <span class="keyword">auto</span> it = remloc.find(entity);</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span> </div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">if</span>(it == remloc.cend()) {</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="keyword">const</span> <span class="keyword">auto</span> local = registry.create();</div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  remloc.emplace(entity, std::make_pair(local, <span class="keyword">true</span>));</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  remloc[entity].first =</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  registry.valid(remloc[entity].first)</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  ? remloc[entity].first</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  : registry.create();</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span> </div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  <span class="comment">// set the dirty flag</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  remloc[entity].second = <span class="keyword">true</span>;</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  }</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  }</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Member></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  std::enable_if_t<std::is_same<Member, Entity>::value></div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  update(Type &instance, Member Type:: *member) {</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  instance.*member = map(instance.*member);</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  }</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span> </div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Type, <span class="keyword">typename</span> Member></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  std::enable_if_t<std::is_same<typename std::iterator_traits<typename Member::iterator>::value_type, Entity>::value></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  update(Type &instance, Member Type:: *member) {</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  <span class="keywordflow">for</span>(<span class="keyword">auto</span> &entity: instance.*member) {</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  entity = map(entity);</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  }</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  }</div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span> </div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Other, <span class="keyword">typename</span> Type, <span class="keyword">typename</span> Member></div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  std::enable_if_t<!std::is_same<Other, Type>::value></div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  update(Other &, Member Type:: *) {}</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span> </div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordtype">void</span> assure(Archive &archive, <span class="keywordtype">void</span>(<a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a>:: *member)(Entity)) {</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  Entity length{};</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  archive(length);</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span> </div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="keywordflow">while</span>(length--) {</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  Entity entity{};</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  archive(entity);</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  (this->*member)(entity);</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span>  }</div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  }</div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span> </div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Component></div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordtype">void</span> reset() {</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">for</span>(<span class="keyword">auto</span> &&ref: remloc) {</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  <span class="keyword">const</span> <span class="keyword">auto</span> local = ref.second.first;</div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span> </div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span>(registry.valid(local)) {</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  registry.template reset<Component>(local);</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  }</div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  }</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span> </div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Other, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span> Func, <span class="keyword">typename</span>... Type, <span class="keyword">typename</span>... Member></div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keywordtype">void</span> assign(Archive &archive, Func func, Member Type:: *... member) {</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  Entity length{};</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  archive(length);</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span> </div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="keywordflow">while</span>(length--) {</div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  Entity entity{};</div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  Other instance{};</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span> </div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  archive(entity, instance);</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  restore(entity);</div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span> </div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  accumulator_type accumulator = { 0, (update(instance, member), 0)... };</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  (void)accumulator;</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span> </div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  func(map(entity), instance);</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  }</div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  }</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span> </div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00523"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f"> 523</a></span>  <span class="keyword">using</span> <a class="code" href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f">entity_type</a> = Entity;</div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span> </div><div class="line"><a name="l00529"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a26ccd96f9ee4219ad7e3d1b8138ade37"> 529</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html#a26ccd96f9ee4219ad7e3d1b8138ade37">ContinuousLoader</a>(<a class="code" href="classentt_1_1Registry.html">Registry<entity_type></a> &registry) ENTT_NOEXCEPT</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  : registry{registry}</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  {}</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a>(<a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span> </div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<span class="keyword">const</span> <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> &) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">operator=</a>(<a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> &&) = <span class="keywordflow">default</span>;</div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span> </div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00554"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a26eadd32f719c24de2305347a5066197"> 554</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#a26eadd32f719c24de2305347a5066197">entities</a>(Archive &archive) {</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  assure(archive, &ContinuousLoader::restore);</div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  }</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span> </div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keyword">template</span><<span class="keyword">typename</span> Archive></div><div class="line"><a name="l00570"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a8aa96c02f3fa734078b4e77198665c91"> 570</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#a8aa96c02f3fa734078b4e77198665c91">destroyed</a>(Archive &archive) {</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  assure(archive, &ContinuousLoader::destroy);</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  }</div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span> </div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Component, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span>... Type, <span class="keyword">typename</span>... Member></div><div class="line"><a name="l00595"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a9c185ecae861f074afb1d2a14cf4f0f2"> 595</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#a9c185ecae861f074afb1d2a14cf4f0f2">component</a>(Archive &archive, Member Type:: *... member) {</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span>  <span class="keyword">auto</span> apply = [<span class="keyword">this</span>](<span class="keyword">const</span> <span class="keyword">auto</span> entity, <span class="keyword">const</span> <span class="keyword">auto</span> &component) {</div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  registry.template accommodate<std::decay_t<decltype(component)>>(entity, component);</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  };</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span> </div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span>  accumulator_type accumulator = { 0, (reset<Component>(), assign<Component>(archive, apply, member...), 0)... };</div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  (void)accumulator;</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  }</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span> </div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... Tag, <span class="keyword">typename</span> Archive, <span class="keyword">typename</span>... Type, <span class="keyword">typename</span>... Member></div><div class="line"><a name="l00626"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a8d50d3f90d95b370305561da67da6c3b"> 626</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#a8d50d3f90d95b370305561da67da6c3b">tag</a>(Archive &archive, Member Type:: *... member) {</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  <span class="keyword">auto</span> apply = [<span class="keyword">this</span>](<span class="keyword">const</span> <span class="keyword">auto</span> entity, <span class="keyword">const</span> <span class="keyword">auto</span> &<a class="code" href="classentt_1_1Snapshot.html#ac13d5fe79511e27f7b935e84c112e051">tag</a>) {</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  registry.template assign<std::decay_t<decltype(tag)>>(<a class="code" href="structentt_1_1tag__t.html">tag_t</a>{}, entity, <a class="code" href="classentt_1_1Snapshot.html#ac13d5fe79511e27f7b935e84c112e051">tag</a>);</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  };</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> </div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keyword">using</span> accumulator_type = <span class="keywordtype">int</span>[];</div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  accumulator_type accumulator = { 0, (registry.template remove<Tag>(), assign<Tag>(archive, apply, member...), 0)... };</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  (void)accumulator;</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  }</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span> </div><div class="line"><a name="l00645"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a959dc40d6285e8175e95c3679c6698d6"> 645</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#a959dc40d6285e8175e95c3679c6698d6">shrink</a>() {</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <span class="keyword">auto</span> it = remloc.begin();</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span> </div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <span class="keywordflow">while</span>(it != remloc.cend()) {</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keyword">const</span> <span class="keyword">auto</span> local = it->second.first;</div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keywordtype">bool</span> &dirty = it->second.second;</div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span> </div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  <span class="keywordflow">if</span>(dirty) {</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  dirty = <span class="keyword">false</span>;</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  ++it;</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span>  } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordflow">if</span>(registry.valid(local)) {</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  registry.destroy(local);</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  }</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span> </div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  it = remloc.erase(it);</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  }</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  }</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  }</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span> </div><div class="line"><a name="l00677"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#ad1f0c307283afc23e11460c9ca2037c0"> 677</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html">ContinuousLoader</a> & <a class="code" href="classentt_1_1ContinuousLoader.html#ad1f0c307283afc23e11460c9ca2037c0">orphans</a>() {</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  registry.<a class="code" href="classentt_1_1ContinuousLoader.html#ad1f0c307283afc23e11460c9ca2037c0">orphans</a>([<span class="keyword">this</span>](<span class="keyword">const</span> <span class="keyword">auto</span> entity) {</div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  registry.destroy(entity);</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  });</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span> </div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  }</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span> </div><div class="line"><a name="l00690"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a65c5550a1a68135345e30e2af20b6096"> 690</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classentt_1_1ContinuousLoader.html#a65c5550a1a68135345e30e2af20b6096">has</a>(<a class="code" href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f">entity_type</a> entity) <span class="keyword">const</span> ENTT_NOEXCEPT {</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span>  <span class="keywordflow">return</span> (remloc.find(entity) != remloc.cend());</div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  }</div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span> </div><div class="line"><a name="l00706"></a><span class="lineno"><a class="line" href="classentt_1_1ContinuousLoader.html#a63d6f733d8651a19b7ea882f3615455c"> 706</a></span>  <a class="code" href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f">entity_type</a> <a class="code" href="classentt_1_1ContinuousLoader.html#a63d6f733d8651a19b7ea882f3615455c">map</a>(<a class="code" href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f">entity_type</a> entity) <span class="keyword">const</span> ENTT_NOEXCEPT {</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  assert(has(entity));</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="keywordflow">return</span> remloc.find(entity)->second.first;</div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  }</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span> </div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span> <span class="keyword">private</span>:</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  std::unordered_map<Entity, std::pair<Entity, bool>> remloc;</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <a class="code" href="classentt_1_1Registry.html">Registry<Entity></a> &registry;</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span> };</div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span> </div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span> </div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span> }</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span> </div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span> </div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span> <span class="preprocessor">#endif // ENTT_ENTITY_SNAPSHOT_HPP</span></div><div class="ttc" id="classentt_1_1ContinuousLoader_html_a8d50d3f90d95b370305561da67da6c3b"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a8d50d3f90d95b370305561da67da6c3b">entt::ContinuousLoader::tag</a></div><div class="ttdeci">ContinuousLoader & tag(Archive &archive, Member Type::*... member)</div><div class="ttdoc">Restores tags and assigns them to the right entities. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00626">snapshot.hpp:626</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a63d6f733d8651a19b7ea882f3615455c"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a63d6f733d8651a19b7ea882f3615455c">entt::ContinuousLoader::map</a></div><div class="ttdeci">entity_type map(entity_type entity) const ENTT_NOEXCEPT</div><div class="ttdoc">Returns the identifier to which an entity refers. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00706">snapshot.hpp:706</a></div></div>
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<div class="ttc" id="classentt_1_1Registry_html"><div class="ttname"><a href="classentt_1_1Registry.html">entt::Registry</a></div><div class="ttdoc">Fast and reliable entity-component system. </div><div class="ttdef"><b>Definition:</b> <a href="registry_8hpp_source.html#l00040">registry.hpp:40</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html">entt::SnapshotLoader</a></div><div class="ttdoc">Utility class to restore a snapshot as a whole. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00261">snapshot.hpp:261</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html_afc4964c76a8fc7a8a1c6a435babc796f"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html#afc4964c76a8fc7a8a1c6a435babc796f">entt::SnapshotLoader::tag</a></div><div class="ttdeci">const SnapshotLoader & tag(Archive &archive) const</div><div class="ttdoc">Restores tags and assigns them to the right entities. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00382">snapshot.hpp:382</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html_a03f291aa5216eab207780f785a75bbba"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html#a03f291aa5216eab207780f785a75bbba">entt::SnapshotLoader::component</a></div><div class="ttdeci">const SnapshotLoader & component(Archive &archive) const</div><div class="ttdoc">Restores components and assigns them to the right entities. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00361">snapshot.hpp:361</a></div></div>
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<div class="ttc" id="namespaceentt_html"><div class="ttname"><a href="namespaceentt.html">entt</a></div><div class="ttdoc">EnTT default namespace. </div><div class="ttdef"><b>Definition:</b> <a href="algorithm_8hpp_source.html#l00010">algorithm.hpp:10</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html"><div class="ttname"><a href="classentt_1_1Snapshot.html">entt::Snapshot</a></div><div class="ttdoc">Utility class to create snapshots from a registry. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00038">snapshot.hpp:38</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a9c185ecae861f074afb1d2a14cf4f0f2"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a9c185ecae861f074afb1d2a14cf4f0f2">entt::ContinuousLoader::component</a></div><div class="ttdeci">ContinuousLoader & component(Archive &archive, Member Type::*... member)</div><div class="ttdoc">Restores components and assigns them to the right entities. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00595">snapshot.hpp:595</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_ae2ddecfaeb16ddbf340b6ca643036c6f"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#ae2ddecfaeb16ddbf340b6ca643036c6f">entt::ContinuousLoader::entity_type</a></div><div class="ttdeci">Entity entity_type</div><div class="ttdoc">Underlying entity identifier. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00523">snapshot.hpp:523</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_aa77d63e06c40969adca662fca3a2ca08"><div class="ttname"><a href="classentt_1_1Snapshot.html#aa77d63e06c40969adca662fca3a2ca08">entt::Snapshot::entities</a></div><div class="ttdeci">const Snapshot & entities(Archive &archive) const</div><div class="ttdoc">Puts aside all the entities that are still in use. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00102">snapshot.hpp:102</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a65c5550a1a68135345e30e2af20b6096"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a65c5550a1a68135345e30e2af20b6096">entt::ContinuousLoader::has</a></div><div class="ttdeci">bool has(entity_type entity) const ENTT_NOEXCEPT</div><div class="ttdoc">Tests if a loader knows about a given entity. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00690">snapshot.hpp:690</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_ac7d571f0901df2476451e2fd26d9dab9"><div class="ttname"><a href="classentt_1_1Snapshot.html#ac7d571f0901df2476451e2fd26d9dab9">entt::Snapshot::destroyed</a></div><div class="ttdeci">const Snapshot & destroyed(Archive &archive) const</div><div class="ttdoc">Puts aside destroyed entities. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00119">snapshot.hpp:119</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a8aa96c02f3fa734078b4e77198665c91"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a8aa96c02f3fa734078b4e77198665c91">entt::ContinuousLoader::destroyed</a></div><div class="ttdeci">ContinuousLoader & destroyed(Archive &archive)</div><div class="ttdoc">Restores entities that were destroyed during serialization. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00570">snapshot.hpp:570</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_a4aa8df6d1e59c4f441e472f63f5ee580"><div class="ttname"><a href="classentt_1_1Snapshot.html#a4aa8df6d1e59c4f441e472f63f5ee580">entt::Snapshot::component</a></div><div class="ttdeci">std::enable_if_t<(sizeof...(Component) > 1), const Snapshot & > component(Archive &archive) const</div><div class="ttdoc">Puts aside the given components. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00171">snapshot.hpp:171</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html_a094ec796643b2c7422533c24e80963f3"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html#a094ec796643b2c7422533c24e80963f3">entt::SnapshotLoader::destroyed</a></div><div class="ttdeci">const SnapshotLoader & destroyed(Archive &archive) const</div><div class="ttdoc">Restores entities that were destroyed during serialization. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00341">snapshot.hpp:341</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a26ccd96f9ee4219ad7e3d1b8138ade37"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a26ccd96f9ee4219ad7e3d1b8138ade37">entt::ContinuousLoader::ContinuousLoader</a></div><div class="ttdeci">ContinuousLoader(Registry< entity_type > &registry) ENTT_NOEXCEPT</div><div class="ttdoc">Constructs a loader that is bound to a given registry. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00529">snapshot.hpp:529</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html_a70e3af34bfacf921a2579b1d0055ceca"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html#a70e3af34bfacf921a2579b1d0055ceca">entt::SnapshotLoader::orphans</a></div><div class="ttdeci">const SnapshotLoader & orphans() const</div><div class="ttdoc">Destroys those entities that have neither components nor tags. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00399">snapshot.hpp:399</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_a960471c2f13bc1c693a9c58396e63b93"><div class="ttname"><a href="classentt_1_1Snapshot.html#a960471c2f13bc1c693a9c58396e63b93">entt::Snapshot::tag</a></div><div class="ttdeci">std::enable_if_t<(sizeof...(Tag) > 1), const Snapshot & > tag(Archive &archive) const</div><div class="ttdoc">Puts aside the given tags. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00236">snapshot.hpp:236</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_a336288f5faaeb5f49831e3a0b4445bb0"><div class="ttname"><a href="classentt_1_1Snapshot.html#a336288f5faaeb5f49831e3a0b4445bb0">entt::Snapshot::component</a></div><div class="ttdeci">const Snapshot & component(Archive &archive) const</div><div class="ttdoc">Puts aside the given component. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00144">snapshot.hpp:144</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html">entt::ContinuousLoader</a></div><div class="ttdoc">Utility class for continuous loading. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00430">snapshot.hpp:430</a></div></div>
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<div class="ttc" id="classentt_1_1SnapshotLoader_html_a7bff030b50995a78f79217eecfb90535"><div class="ttname"><a href="classentt_1_1SnapshotLoader.html#a7bff030b50995a78f79217eecfb90535">entt::SnapshotLoader::entities</a></div><div class="ttdeci">const SnapshotLoader & entities(Archive &archive) const</div><div class="ttdoc">Restores entities that were in use during serialization. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00324">snapshot.hpp:324</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_a98433fc64a9935e744a4c1b1f5d6e630"><div class="ttname"><a href="classentt_1_1Snapshot.html#a98433fc64a9935e744a4c1b1f5d6e630">entt::Snapshot::component</a></div><div class="ttdeci">const Snapshot & component(Archive &archive, It first, It last) const</div><div class="ttdoc">Puts aside the given components for the entities in a range. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00193">snapshot.hpp:193</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a959dc40d6285e8175e95c3679c6698d6"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a959dc40d6285e8175e95c3679c6698d6">entt::ContinuousLoader::shrink</a></div><div class="ttdeci">ContinuousLoader & shrink()</div><div class="ttdoc">Helps to purge entities that no longer have a conterpart. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00645">snapshot.hpp:645</a></div></div>
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<div class="ttc" id="structentt_1_1tag__t_html"><div class="ttname"><a href="structentt_1_1tag__t.html">entt::tag_t</a></div><div class="ttdoc">Tag class type used to disambiguate overloads. </div><div class="ttdef"><b>Definition:</b> <a href="utility_8hpp_source.html#l00009">utility.hpp:9</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_ac13d5fe79511e27f7b935e84c112e051"><div class="ttname"><a href="classentt_1_1Snapshot.html#ac13d5fe79511e27f7b935e84c112e051">entt::Snapshot::tag</a></div><div class="ttdeci">const Snapshot & tag(Archive &archive) const</div><div class="ttdoc">Puts aside the given tag. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00210">snapshot.hpp:210</a></div></div>
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<div class="ttc" id="classentt_1_1Snapshot_html_a3375f7d701d086fc21e04e6077c954fc"><div class="ttname"><a href="classentt_1_1Snapshot.html#a3375f7d701d086fc21e04e6077c954fc">entt::Snapshot::operator=</a></div><div class="ttdeci">Snapshot & operator=(const Snapshot &)=delete</div><div class="ttdoc">Copying a snapshot isn&#39;t allowed. </div></div>
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<div class="ttc" id="structentt_1_1entt__traits_html"><div class="ttname"><a href="structentt_1_1entt__traits.html">entt::entt_traits</a></div><div class="ttdoc">Entity traits. </div><div class="ttdef"><b>Definition:</b> <a href="entt__traits_8hpp_source.html#l00018">entt_traits.hpp:18</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_a26eadd32f719c24de2305347a5066197"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#a26eadd32f719c24de2305347a5066197">entt::ContinuousLoader::entities</a></div><div class="ttdeci">ContinuousLoader & entities(Archive &archive)</div><div class="ttdoc">Restores entities that were in use during serialization. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00554">snapshot.hpp:554</a></div></div>
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<div class="ttc" id="classentt_1_1ContinuousLoader_html_ad1f0c307283afc23e11460c9ca2037c0"><div class="ttname"><a href="classentt_1_1ContinuousLoader.html#ad1f0c307283afc23e11460c9ca2037c0">entt::ContinuousLoader::orphans</a></div><div class="ttdeci">ContinuousLoader & orphans()</div><div class="ttdoc">Destroys those entities that have neither components nor tags. </div><div class="ttdef"><b>Definition:</b> <a href="snapshot_8hpp_source.html#l00677">snapshot.hpp:677</a></div></div>
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