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  108.   <div class="headertitle"><div class="title">AngleConstraintPart.h</div></div>
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  110. <div class="contents">
    111. 

  111. <a href="_angle_constraint_part_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span><span class="comment">// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)</span></div>
    112. 

  112. <div class="line"><a id="l00002" name="l00002"></a><span class="lineno">    2</span><span class="comment">// SPDX-FileCopyrightText: 2021 Jorrit Rouwe</span></div>
    113. 

  113. <div class="line"><a id="l00003" name="l00003"></a><span class="lineno">    3</span><span class="comment">// SPDX-License-Identifier: MIT</span></div>
    114. 

  114. <div class="line"><a id="l00004" name="l00004"></a><span class="lineno">    4</span> </div>
    115. 

  115. <div class="line"><a id="l00005" name="l00005"></a><span class="lineno">    5</span><span class="preprocessor">#pragma once</span></div>
    116. 

  116. <div class="line"><a id="l00006" name="l00006"></a><span class="lineno">    6</span> </div>
    117. 

  117. <div class="line"><a id="l00007" name="l00007"></a><span class="lineno">    7</span><span class="preprocessor">#include &lt;<a class="code" href="_body_8h.html">Jolt/Physics/Body/Body.h</a>&gt;</span></div>
    118. 

  118. <div class="line"><a id="l00008" name="l00008"></a><span class="lineno">    8</span><span class="preprocessor">#include &lt;<a class="code" href="_spring_part_8h.html">Jolt/Physics/Constraints/ConstraintPart/SpringPart.h</a>&gt;</span></div>
    119. 

  119. <div class="line"><a id="l00009" name="l00009"></a><span class="lineno">    9</span><span class="preprocessor">#include &lt;<a class="code" href="_spring_settings_8h.html">Jolt/Physics/Constraints/SpringSettings.h</a>&gt;</span></div>
    120. 

  120. <div class="line"><a id="l00010" name="l00010"></a><span class="lineno">   10</span><span class="preprocessor">#include &lt;<a class="code" href="_state_recorder_8h.html">Jolt/Physics/StateRecorder.h</a>&gt;</span></div>
    121. 

  121. <div class="line"><a id="l00011" name="l00011"></a><span class="lineno">   11</span> </div>
    122. 

  122. <div class="line"><a id="l00012" name="l00012"></a><span class="lineno">   12</span><a class="code hl_define" href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div>
    123. 

  123. <div class="line"><a id="l00013" name="l00013"></a><span class="lineno">   13</span> </div>
    124. 

  124. <div class="foldopen" id="foldopen00036" data-start="{" data-end="};">
    125. 

  125. <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html">   36</a></span><span class="keyword">class </span><a class="code hl_class" href="class_angle_constraint_part.html">AngleConstraintPart</a></div>
    126. 

  126. <div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span>{</div>
    127. 

  127. <div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>    JPH_INLINE <span class="keywordtype">bool</span>             ApplyVelocityStep(<a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody1, <a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody2, <span class="keywordtype">float</span> inLambda)<span class="keyword"> const</span></div>
    128. 

  128. <div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="keyword">    </span>{</div>
    129. 

  129. <div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span>        <span class="comment">// Apply impulse if delta is not zero</span></div>
    130. 

  130. <div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span>        <span class="keywordflow">if</span> (inLambda != 0.0f)</div>
    131. 

  131. <div class="line"><a id="l00043" name="l00043"></a><span class="lineno">   43</span>        {</div>
    132. 

  132. <div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span>            <span class="comment">// Calculate velocity change due to constraint</span></div>
    133. 

  133. <div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span>            <span class="comment">//</span></div>
    134. 

  134. <div class="line"><a id="l00046" name="l00046"></a><span class="lineno">   46</span>            <span class="comment">// Impulse:</span></div>
    135. 

  135. <div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span>            <span class="comment">// P = J^T lambda</span></div>
    136. 

  136. <div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span>            <span class="comment">//</span></div>
    137. 

  137. <div class="line"><a id="l00049" name="l00049"></a><span class="lineno">   49</span>            <span class="comment">// Euler velocity integration:</span></div>
    138. 

  138. <div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span>            <span class="comment">// v&#39; = v + M^-1 P</span></div>
    139. 

  139. <div class="line"><a id="l00051" name="l00051"></a><span class="lineno">   51</span>            <span class="keywordflow">if</span> (ioBody1.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>())</div>
    140. 

  140. <div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span>                ioBody1.<a class="code hl_function" href="class_body.html#a0d39987255227c4221fcea66cb1fc041">GetMotionProperties</a>()-&gt;<a class="code hl_function" href="class_motion_properties.html#a98672fc0c6884643944e570e1d78ac07">SubAngularVelocityStep</a>(inLambda * mInvI1_Axis);</div>
    141. 

  141. <div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span>            <span class="keywordflow">if</span> (ioBody2.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>())</div>
    142. 

  142. <div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span>                ioBody2.<a class="code hl_function" href="class_body.html#a0d39987255227c4221fcea66cb1fc041">GetMotionProperties</a>()-&gt;<a class="code hl_function" href="class_motion_properties.html#afb12aa823a651145b46b271570a7af59">AddAngularVelocityStep</a>(inLambda * mInvI2_Axis);</div>
    143. 

  143. <div class="line"><a id="l00055" name="l00055"></a><span class="lineno">   55</span>            <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
    144. 

  144. <div class="line"><a id="l00056" name="l00056"></a><span class="lineno">   56</span>        }</div>
    145. 

  145. <div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
    146. 

  146. <div class="line"><a id="l00058" name="l00058"></a><span class="lineno">   58</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
    147. 

  147. <div class="line"><a id="l00059" name="l00059"></a><span class="lineno">   59</span>    }</div>
    148. 

  148. <div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span> </div>
    149. 

  149. <div class="line"><a id="l00062" name="l00062"></a><span class="lineno">   62</span>    JPH_INLINE <span class="keywordtype">float</span>                CalculateInverseEffectiveMass(<span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody1, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis)</div>
    150. 

  150. <div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span>    {</div>
    151. 

  151. <div class="line"><a id="l00064" name="l00064"></a><span class="lineno">   64</span>        <a class="code hl_define" href="_issue_reporting_8h.html#aaf6b1df827e11b7ca5f6f8778bd8f8cd">JPH_ASSERT</a>(inWorldSpaceAxis.<a class="code hl_function" href="class_vec3.html#a2f10743d69960eaac721399e4ede190a">IsNormalized</a>(1.0e-4f));</div>
    152. 

  152. <div class="line"><a id="l00065" name="l00065"></a><span class="lineno">   65</span> </div>
    153. 

  153. <div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span>        <span class="comment">// Calculate properties used below</span></div>
    154. 

  154. <div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span>        mInvI1_Axis = inBody1.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>()? inBody1.<a class="code hl_function" href="class_body.html#a0d39987255227c4221fcea66cb1fc041">GetMotionProperties</a>()-&gt;<a class="code hl_function" href="class_motion_properties.html#aa8a73ea7940a316151262ed9a28c4fbb">MultiplyWorldSpaceInverseInertiaByVector</a>(inBody1.<a class="code hl_function" href="class_body.html#aaee24bfb5e32e756f50113b9d1f45a2c">GetRotation</a>(), inWorldSpaceAxis) : <a class="code hl_function" href="class_vec3.html#ad03c52ab27761bc1e64e33c47632ba51">Vec3::sZero</a>();</div>
    155. 

  155. <div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span>        mInvI2_Axis = inBody2.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>()? inBody2.<a class="code hl_function" href="class_body.html#a0d39987255227c4221fcea66cb1fc041">GetMotionProperties</a>()-&gt;<a class="code hl_function" href="class_motion_properties.html#aa8a73ea7940a316151262ed9a28c4fbb">MultiplyWorldSpaceInverseInertiaByVector</a>(inBody2.<a class="code hl_function" href="class_body.html#aaee24bfb5e32e756f50113b9d1f45a2c">GetRotation</a>(), inWorldSpaceAxis) : <a class="code hl_function" href="class_vec3.html#ad03c52ab27761bc1e64e33c47632ba51">Vec3::sZero</a>();</div>
    156. 

  156. <div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span> </div>
    157. 

  157. <div class="line"><a id="l00070" name="l00070"></a><span class="lineno">   70</span>        <span class="comment">// Calculate inverse effective mass: K = J M^-1 J^T</span></div>
    158. 

  158. <div class="line"><a id="l00071" name="l00071"></a><span class="lineno">   71</span>        <span class="keywordflow">return</span> inWorldSpaceAxis.<a class="code hl_function" href="class_vec3.html#a0e078ff09f69e669db71a2b0e37939ff">Dot</a>(mInvI1_Axis + mInvI2_Axis);</div>
    159. 

  159. <div class="line"><a id="l00072" name="l00072"></a><span class="lineno">   72</span>    }</div>
    160. 

  160. <div class="line"><a id="l00073" name="l00073"></a><span class="lineno">   73</span> </div>
    161. 

  161. <div class="line"><a id="l00074" name="l00074"></a><span class="lineno">   74</span><span class="keyword">public</span>:</div>
    162. 

  162. <div class="foldopen" id="foldopen00081" data-start="{" data-end="}">
    163. 

  163. <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a4db6fb3120c161301e04ee92276544d4">   81</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a4db6fb3120c161301e04ee92276544d4">CalculateConstraintProperties</a>(<span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody1, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis, <span class="keywordtype">float</span> inBias = 0.0f)</div>
    164. 

  164. <div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span>    {</div>
    165. 

  165. <div class="line"><a id="l00083" name="l00083"></a><span class="lineno">   83</span>        <span class="keywordtype">float</span> inv_effective_mass = CalculateInverseEffectiveMass(inBody1, inBody2, inWorldSpaceAxis);</div>
    166. 

  166. <div class="line"><a id="l00084" name="l00084"></a><span class="lineno">   84</span> </div>
    167. 

  167. <div class="line"><a id="l00085" name="l00085"></a><span class="lineno">   85</span>        <span class="keywordflow">if</span> (inv_effective_mass == 0.0f)</div>
    168. 

  168. <div class="line"><a id="l00086" name="l00086"></a><span class="lineno">   86</span>            <a class="code hl_function" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">Deactivate</a>();</div>
    169. 

  169. <div class="line"><a id="l00087" name="l00087"></a><span class="lineno">   87</span>        <span class="keywordflow">else</span></div>
    170. 

  170. <div class="line"><a id="l00088" name="l00088"></a><span class="lineno">   88</span>        {</div>
    171. 

  171. <div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span>            mEffectiveMass = 1.0f / inv_effective_mass;</div>
    172. 

  172. <div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span>            mSpringPart.<a class="code hl_function" href="class_spring_part.html#a75d1d4a45e975a5b9b0ad99525c9f52f">CalculateSpringPropertiesWithBias</a>(inBias);</div>
    173. 

  173. <div class="line"><a id="l00091" name="l00091"></a><span class="lineno">   91</span>        }</div>
    174. 

  174. <div class="line"><a id="l00092" name="l00092"></a><span class="lineno">   92</span>    }</div>
    175. 

  175. </div>
    176. 

  176. <div class="line"><a id="l00093" name="l00093"></a><span class="lineno">   93</span> </div>
    177. 

  177. <div class="foldopen" id="foldopen00104" data-start="{" data-end="}">
    178. 

  178. <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#ace82e23e9129e1c30c93134a2d75504e">  104</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#ace82e23e9129e1c30c93134a2d75504e">CalculateConstraintPropertiesWithFrequencyAndDamping</a>(<span class="keywordtype">float</span> inDeltaTime, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody1, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis, <span class="keywordtype">float</span> inBias, <span class="keywordtype">float</span> inC, <span class="keywordtype">float</span> inFrequency, <span class="keywordtype">float</span> inDamping)</div>
    179. 

  179. <div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span>    {</div>
    180. 

  180. <div class="line"><a id="l00106" name="l00106"></a><span class="lineno">  106</span>        <span class="keywordtype">float</span> inv_effective_mass = CalculateInverseEffectiveMass(inBody1, inBody2, inWorldSpaceAxis);</div>
    181. 

  181. <div class="line"><a id="l00107" name="l00107"></a><span class="lineno">  107</span> </div>
    182. 

  182. <div class="line"><a id="l00108" name="l00108"></a><span class="lineno">  108</span>        <span class="keywordflow">if</span> (inv_effective_mass == 0.0f)</div>
    183. 

  183. <div class="line"><a id="l00109" name="l00109"></a><span class="lineno">  109</span>            <a class="code hl_function" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">Deactivate</a>();</div>
    184. 

  184. <div class="line"><a id="l00110" name="l00110"></a><span class="lineno">  110</span>        <span class="keywordflow">else</span></div>
    185. 

  185. <div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span>            mSpringPart.<a class="code hl_function" href="class_spring_part.html#a0414048df549022dee152c2b18b31126">CalculateSpringPropertiesWithFrequencyAndDamping</a>(inDeltaTime, inv_effective_mass, inBias, inC, inFrequency, inDamping, mEffectiveMass);</div>
    186. 

  186. <div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span>    }</div>
    187. 

  187. </div>
    188. 

  188. <div class="line"><a id="l00113" name="l00113"></a><span class="lineno">  113</span> </div>
    189. 

  189. <div class="foldopen" id="foldopen00124" data-start="{" data-end="}">
    190. 

  190. <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a13c8d05c1aef17b2edc81da4ea754404">  124</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a13c8d05c1aef17b2edc81da4ea754404">CalculateConstraintPropertiesWithStiffnessAndDamping</a>(<span class="keywordtype">float</span> inDeltaTime, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody1, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis, <span class="keywordtype">float</span> inBias, <span class="keywordtype">float</span> inC, <span class="keywordtype">float</span> inStiffness, <span class="keywordtype">float</span> inDamping)</div>
    191. 

  191. <div class="line"><a id="l00125" name="l00125"></a><span class="lineno">  125</span>    {</div>
    192. 

  192. <div class="line"><a id="l00126" name="l00126"></a><span class="lineno">  126</span>        <span class="keywordtype">float</span> inv_effective_mass = CalculateInverseEffectiveMass(inBody1, inBody2, inWorldSpaceAxis);</div>
    193. 

  193. <div class="line"><a id="l00127" name="l00127"></a><span class="lineno">  127</span> </div>
    194. 

  194. <div class="line"><a id="l00128" name="l00128"></a><span class="lineno">  128</span>        <span class="keywordflow">if</span> (inv_effective_mass == 0.0f)</div>
    195. 

  195. <div class="line"><a id="l00129" name="l00129"></a><span class="lineno">  129</span>            <a class="code hl_function" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">Deactivate</a>();</div>
    196. 

  196. <div class="line"><a id="l00130" name="l00130"></a><span class="lineno">  130</span>        <span class="keywordflow">else</span></div>
    197. 

  197. <div class="line"><a id="l00131" name="l00131"></a><span class="lineno">  131</span>            mSpringPart.<a class="code hl_function" href="class_spring_part.html#a318ab5426c6b10a8ceebd3258144d20a">CalculateSpringPropertiesWithStiffnessAndDamping</a>(inDeltaTime, inv_effective_mass, inBias, inC, inStiffness, inDamping, mEffectiveMass);</div>
    198. 

  198. <div class="line"><a id="l00132" name="l00132"></a><span class="lineno">  132</span>    }</div>
    199. 

  199. </div>
    200. 

  200. <div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span> </div>
    201. 

  201. <div class="foldopen" id="foldopen00135" data-start="{" data-end="}">
    202. 

  202. <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#ac8eb562a067ed5596aca09e04ffc32d1">  135</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#ac8eb562a067ed5596aca09e04ffc32d1">CalculateConstraintPropertiesWithSettings</a>(<span class="keywordtype">float</span> inDeltaTime, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody1, <span class="keyword">const</span> <a class="code hl_class" href="class_body.html">Body</a> &amp;inBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis, <span class="keywordtype">float</span> inBias, <span class="keywordtype">float</span> inC, <span class="keyword">const</span> <a class="code hl_class" href="class_spring_settings.html">SpringSettings</a> &amp;inSpringSettings)</div>
    203. 

  203. <div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>    {</div>
    204. 

  204. <div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>        <span class="keywordtype">float</span> inv_effective_mass = CalculateInverseEffectiveMass(inBody1, inBody2, inWorldSpaceAxis);</div>
    205. 

  205. <div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span> </div>
    206. 

  206. <div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>        <span class="keywordflow">if</span> (inv_effective_mass == 0.0f)</div>
    207. 

  207. <div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>            <a class="code hl_function" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">Deactivate</a>();</div>
    208. 

  208. <div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>        <span class="keywordflow">else</span> <span class="keywordflow">if</span> (inSpringSettings.<a class="code hl_variable" href="class_spring_settings.html#a7d27c541e7d25d9da0c263ec99ea528a">mMode</a> == <a class="code hl_enumvalue" href="_spring_settings_8h.html#ac805e5e93f24003512d2ca7e0d71512da52630869b4ed10261d514c91e9c9c018">ESpringMode::FrequencyAndDamping</a>)</div>
    209. 

  209. <div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>            mSpringPart.<a class="code hl_function" href="class_spring_part.html#a0414048df549022dee152c2b18b31126">CalculateSpringPropertiesWithFrequencyAndDamping</a>(inDeltaTime, inv_effective_mass, inBias, inC, inSpringSettings.<a class="code hl_variable" href="class_spring_settings.html#acea8e3f5767edbfaffa01417733b5dc0">mFrequency</a>, inSpringSettings.<a class="code hl_variable" href="class_spring_settings.html#a72165bbe14974afb17df18e88f6d205e">mDamping</a>, mEffectiveMass);</div>
    210. 

  210. <div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>        <span class="keywordflow">else</span></div>
    211. 

  211. <div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>            mSpringPart.<a class="code hl_function" href="class_spring_part.html#a318ab5426c6b10a8ceebd3258144d20a">CalculateSpringPropertiesWithStiffnessAndDamping</a>(inDeltaTime, inv_effective_mass, inBias, inC, inSpringSettings.<a class="code hl_variable" href="class_spring_settings.html#a688815c0e85518f1ac42f1d077415472">mStiffness</a>, inSpringSettings.<a class="code hl_variable" href="class_spring_settings.html#a72165bbe14974afb17df18e88f6d205e">mDamping</a>, mEffectiveMass);</div>
    212. 

  212. <div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>    }</div>
    213. 

  213. </div>
    214. 

  214. <div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span> </div>
    215. 

  215. <div class="foldopen" id="foldopen00148" data-start="{" data-end="}">
    216. 

  216. <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">  148</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">Deactivate</a>()</div>
    217. 

  217. <div class="line"><a id="l00149" name="l00149"></a><span class="lineno">  149</span>    {</div>
    218. 

  218. <div class="line"><a id="l00150" name="l00150"></a><span class="lineno">  150</span>        mEffectiveMass = 0.0f;</div>
    219. 

  219. <div class="line"><a id="l00151" name="l00151"></a><span class="lineno">  151</span>        mTotalLambda = 0.0f;</div>
    220. 

  220. <div class="line"><a id="l00152" name="l00152"></a><span class="lineno">  152</span>    }</div>
    221. 

  221. </div>
    222. 

  222. <div class="line"><a id="l00153" name="l00153"></a><span class="lineno">  153</span> </div>
    223. 

  223. <div class="foldopen" id="foldopen00155" data-start="{" data-end="}">
    224. 

  224. <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a470e2813d397af02acc6bf8e8373431c">  155</a></span>    <span class="keyword">inline</span> <span class="keywordtype">bool</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a470e2813d397af02acc6bf8e8373431c">IsActive</a>()<span class="keyword"> const</span></div>
    225. 

  225. <div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span><span class="keyword">    </span>{</div>
    226. 

  226. <div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>        <span class="keywordflow">return</span> mEffectiveMass != 0.0f;</div>
    227. 

  227. <div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    }</div>
    228. 

  228. </div>
    229. 

  229. <div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span> </div>
    230. 

  230. <div class="foldopen" id="foldopen00164" data-start="{" data-end="}">
    231. 

  231. <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a8b54544706a1005ac865db7c445b76f1">  164</a></span>    <span class="keyword">inline</span> <span class="keywordtype">void</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a8b54544706a1005ac865db7c445b76f1">WarmStart</a>(<a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody1, <a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody2, <span class="keywordtype">float</span> inWarmStartImpulseRatio)</div>
    232. 

  232. <div class="line"><a id="l00165" name="l00165"></a><span class="lineno">  165</span>    {</div>
    233. 

  233. <div class="line"><a id="l00166" name="l00166"></a><span class="lineno">  166</span>        mTotalLambda *= inWarmStartImpulseRatio;</div>
    234. 

  234. <div class="line"><a id="l00167" name="l00167"></a><span class="lineno">  167</span>        ApplyVelocityStep(ioBody1, ioBody2, mTotalLambda);</div>
    235. 

  235. <div class="line"><a id="l00168" name="l00168"></a><span class="lineno">  168</span>    }</div>
    236. 

  236. </div>
    237. 

  237. <div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span> </div>
    238. 

  238. <div class="foldopen" id="foldopen00176" data-start="{" data-end="}">
    239. 

  239. <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#aab9cd08fa77ca04f5ab6a6d5cfd78538">  176</a></span>    <span class="keyword">inline</span> <span class="keywordtype">bool</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#aab9cd08fa77ca04f5ab6a6d5cfd78538">SolveVelocityConstraint</a>(<a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody1, <a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody2, <a class="code hl_class" href="class_vec3.html">Vec3Arg</a> inWorldSpaceAxis, <span class="keywordtype">float</span> inMinLambda, <span class="keywordtype">float</span> inMaxLambda)</div>
    240. 

  240. <div class="line"><a id="l00177" name="l00177"></a><span class="lineno">  177</span>    {</div>
    241. 

  241. <div class="line"><a id="l00178" name="l00178"></a><span class="lineno">  178</span>        <span class="comment">// Lagrange multiplier is:</span></div>
    242. 

  242. <div class="line"><a id="l00179" name="l00179"></a><span class="lineno">  179</span>        <span class="comment">//</span></div>
    243. 

  243. <div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>        <span class="comment">// lambda = -K^-1 (J v + b)</span></div>
    244. 

  244. <div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>        <span class="keywordtype">float</span> lambda = mEffectiveMass * (inWorldSpaceAxis.<a class="code hl_function" href="class_vec3.html#a0e078ff09f69e669db71a2b0e37939ff">Dot</a>(ioBody1.<a class="code hl_function" href="class_body.html#adb1bb49db094ac2ef7c4951d07ba8417">GetAngularVelocity</a>() - ioBody2.<a class="code hl_function" href="class_body.html#adb1bb49db094ac2ef7c4951d07ba8417">GetAngularVelocity</a>()) - mSpringPart.<a class="code hl_function" href="class_spring_part.html#a42a39d96e15ae84419256c35067e12ad">GetBias</a>(mTotalLambda));</div>
    245. 

  245. <div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>        <span class="keywordtype">float</span> new_lambda = <a class="code hl_function" href="_math_8h.html#a05be8f8200a1a67cbfacd3d16b17ac21">Clamp</a>(mTotalLambda + lambda, inMinLambda, inMaxLambda); <span class="comment">// Clamp impulse</span></div>
    246. 

  246. <div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span>        lambda = new_lambda - mTotalLambda; <span class="comment">// Lambda potentially got clamped, calculate the new impulse to apply</span></div>
    247. 

  247. <div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span>        mTotalLambda = new_lambda; <span class="comment">// Store accumulated impulse</span></div>
    248. 

  248. <div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span> </div>
    249. 

  249. <div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span>        <span class="keywordflow">return</span> ApplyVelocityStep(ioBody1, ioBody2, lambda);</div>
    250. 

  250. <div class="line"><a id="l00187" name="l00187"></a><span class="lineno">  187</span>    }</div>
    251. 

  251. </div>
    252. 

  252. <div class="line"><a id="l00188" name="l00188"></a><span class="lineno">  188</span> </div>
    253. 

  253. <div class="foldopen" id="foldopen00190" data-start="{" data-end="}">
    254. 

  254. <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#af482295498d9ca4f6fcdd0c034d0fb90">  190</a></span>    <span class="keywordtype">float</span>                       <a class="code hl_function" href="class_angle_constraint_part.html#af482295498d9ca4f6fcdd0c034d0fb90">GetTotalLambda</a>()<span class="keyword"> const</span></div>
    255. 

  255. <div class="line"><a id="l00191" name="l00191"></a><span class="lineno">  191</span><span class="keyword">    </span>{</div>
    256. 

  256. <div class="line"><a id="l00192" name="l00192"></a><span class="lineno">  192</span>        <span class="keywordflow">return</span> mTotalLambda;</div>
    257. 

  257. <div class="line"><a id="l00193" name="l00193"></a><span class="lineno">  193</span>    }</div>
    258. 

  258. </div>
    259. 

  259. <div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span> </div>
    260. 

  260. <div class="foldopen" id="foldopen00200" data-start="{" data-end="}">
    261. 

  261. <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a11bb8ed0daf36021dc407fd13cbfde90">  200</a></span>    <span class="keyword">inline</span> <span class="keywordtype">bool</span>                 <a class="code hl_function" href="class_angle_constraint_part.html#a11bb8ed0daf36021dc407fd13cbfde90">SolvePositionConstraint</a>(<a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody1, <a class="code hl_class" href="class_body.html">Body</a> &amp;ioBody2, <span class="keywordtype">float</span> inC, <span class="keywordtype">float</span> inBaumgarte)<span class="keyword"> const</span></div>
    262. 

  262. <div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span><span class="keyword">    </span>{</div>
    263. 

  263. <div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>        <span class="comment">// Only apply position constraint when the constraint is hard, otherwise the velocity bias will fix the constraint</span></div>
    264. 

  264. <div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>        <span class="keywordflow">if</span> (inC != 0.0f &amp;&amp; !mSpringPart.<a class="code hl_function" href="class_spring_part.html#a9dbe7d09f4a6aaf7f5edd106fb6fe335">IsActive</a>())</div>
    265. 

  265. <div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>        {</div>
    266. 

  266. <div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>            <span class="comment">// Calculate lagrange multiplier (lambda) for Baumgarte stabilization:</span></div>
    267. 

  267. <div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span>            <span class="comment">//</span></div>
    268. 

  268. <div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>            <span class="comment">// lambda = -K^-1 * beta / dt * C</span></div>
    269. 

  269. <div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>            <span class="comment">//</span></div>
    270. 

  270. <div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>            <span class="comment">// We should divide by inDeltaTime, but we should multiply by inDeltaTime in the Euler step below so they&#39;re cancelled out</span></div>
    271. 

  271. <div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>            <span class="keywordtype">float</span> lambda = -mEffectiveMass * inBaumgarte * inC;</div>
    272. 

  272. <div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span> </div>
    273. 

  273. <div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>            <span class="comment">// Directly integrate velocity change for one time step</span></div>
    274. 

  274. <div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>            <span class="comment">//</span></div>
    275. 

  275. <div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>            <span class="comment">// Euler velocity integration:</span></div>
    276. 

  276. <div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>            <span class="comment">// dv = M^-1 P</span></div>
    277. 

  277. <div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span>            <span class="comment">//</span></div>
    278. 

  278. <div class="line"><a id="l00217" name="l00217"></a><span class="lineno">  217</span>            <span class="comment">// Impulse:</span></div>
    279. 

  279. <div class="line"><a id="l00218" name="l00218"></a><span class="lineno">  218</span>            <span class="comment">// P = J^T lambda</span></div>
    280. 

  280. <div class="line"><a id="l00219" name="l00219"></a><span class="lineno">  219</span>            <span class="comment">//</span></div>
    281. 

  281. <div class="line"><a id="l00220" name="l00220"></a><span class="lineno">  220</span>            <span class="comment">// Euler position integration:</span></div>
    282. 

  282. <div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>            <span class="comment">// x&#39; = x + dv * dt</span></div>
    283. 

  283. <div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>            <span class="comment">//</span></div>
    284. 

  284. <div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>            <span class="comment">// Note we don&#39;t accumulate velocities for the stabilization. This is using the approach described in &#39;Modeling and</span></div>
    285. 

  285. <div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>            <span class="comment">// Solving Constraints&#39; by Erin Catto presented at GDC 2007. On slide 78 it is suggested to split up the Baumgarte</span></div>
    286. 

  286. <div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span>            <span class="comment">// stabilization for positional drift so that it does not actually add to the momentum. We combine an Euler velocity</span></div>
    287. 

  287. <div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span>            <span class="comment">// integrate + a position integrate and then discard the velocity change.</span></div>
    288. 

  288. <div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span>            <span class="keywordflow">if</span> (ioBody1.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>())</div>
    289. 

  289. <div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>                ioBody1.<a class="code hl_function" href="class_body.html#ab0df53d82e3a8356fac91d178b30c369">SubRotationStep</a>(lambda * mInvI1_Axis);</div>
    290. 

  290. <div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>            <span class="keywordflow">if</span> (ioBody2.<a class="code hl_function" href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">IsDynamic</a>())</div>
    291. 

  291. <div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>                ioBody2.<a class="code hl_function" href="class_body.html#a3385650a73d75c7d9c16d13ea2d5519f">AddRotationStep</a>(lambda * mInvI2_Axis);</div>
    292. 

  292. <div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>            <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
    293. 

  293. <div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>        }</div>
    294. 

  294. <div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span> </div>
    295. 

  295. <div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>        <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
    296. 

  296. <div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>    }</div>
    297. 

  297. </div>
    298. 

  298. <div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span> </div>
    299. 

  299. <div class="foldopen" id="foldopen00238" data-start="{" data-end="}">
    300. 

  300. <div class="line"><a id="l00238" name="l00238"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#ab75081badd77c6854423f45825ff36ce">  238</a></span>    <span class="keywordtype">void</span>                        <a class="code hl_function" href="class_angle_constraint_part.html#ab75081badd77c6854423f45825ff36ce">SaveState</a>(<a class="code hl_class" href="class_state_recorder.html">StateRecorder</a> &amp;inStream)<span class="keyword"> const</span></div>
    301. 

  301. <div class="line"><a id="l00239" name="l00239"></a><span class="lineno">  239</span><span class="keyword">    </span>{</div>
    302. 

  302. <div class="line"><a id="l00240" name="l00240"></a><span class="lineno">  240</span>        inStream.<a class="code hl_function" href="class_stream_out.html#a879dce6c6c6ca5e63835fe61cc745966">Write</a>(mTotalLambda);</div>
    303. 

  303. <div class="line"><a id="l00241" name="l00241"></a><span class="lineno">  241</span>    }</div>
    304. 

  304. </div>
    305. 

  305. <div class="line"><a id="l00242" name="l00242"></a><span class="lineno">  242</span> </div>
    306. 

  306. <div class="foldopen" id="foldopen00244" data-start="{" data-end="}">
    307. 

  307. <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"><a class="line" href="class_angle_constraint_part.html#a80bd3ee7db86967d1a55100ab244d01c">  244</a></span>    <span class="keywordtype">void</span>                        <a class="code hl_function" href="class_angle_constraint_part.html#a80bd3ee7db86967d1a55100ab244d01c">RestoreState</a>(<a class="code hl_class" href="class_state_recorder.html">StateRecorder</a> &amp;inStream)</div>
    308. 

  308. <div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>    {</div>
    309. 

  309. <div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>        inStream.<a class="code hl_function" href="class_stream_in.html#a5ae9304c310edfc5ef1c67a95e36b1f3">Read</a>(mTotalLambda);</div>
    310. 

  310. <div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>    }</div>
    311. 

  311. </div>
    312. 

  312. <div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span> </div>
    313. 

  313. <div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span><span class="keyword">private</span>:</div>
    314. 

  314. <div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>    <a class="code hl_class" href="class_vec3.html">Vec3</a>                        mInvI1_Axis;</div>
    315. 

  315. <div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>    <a class="code hl_class" href="class_vec3.html">Vec3</a>                        mInvI2_Axis;</div>
    316. 

  316. <div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>    <span class="keywordtype">float</span>                       mEffectiveMass = 0.0f;</div>
    317. 

  317. <div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    <a class="code hl_class" href="class_spring_part.html">SpringPart</a>                  mSpringPart;</div>
    318. 

  318. <div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>    <span class="keywordtype">float</span>                       mTotalLambda = 0.0f;</div>
    319. 

  319. <div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>};</div>
    320. 

  320. </div>
    321. 

  321. <div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span> </div>
    322. 

  322. <div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span><a class="code hl_define" href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div>
    323. 

  323. <div class="ttc" id="a_body_8h_html"><div class="ttname"><a href="_body_8h.html">Body.h</a></div></div>
    324. 

  324. <div class="ttc" id="a_core_8h_html_a73da8725998b00321a9db341202d650d"><div class="ttname"><a href="_core_8h.html#a73da8725998b00321a9db341202d650d">JPH_NAMESPACE_END</a></div><div class="ttdeci">#define JPH_NAMESPACE_END</div><div class="ttdef"><b>Definition</b> Core.h:425</div></div>
    325. 

  325. <div class="ttc" id="a_core_8h_html_ad14098b68b8c44ea6112601031268405"><div class="ttname"><a href="_core_8h.html#ad14098b68b8c44ea6112601031268405">JPH_NAMESPACE_BEGIN</a></div><div class="ttdeci">#define JPH_NAMESPACE_BEGIN</div><div class="ttdef"><b>Definition</b> Core.h:419</div></div>
    326. 

  326. <div class="ttc" id="a_issue_reporting_8h_html_aaf6b1df827e11b7ca5f6f8778bd8f8cd"><div class="ttname"><a href="_issue_reporting_8h.html#aaf6b1df827e11b7ca5f6f8778bd8f8cd">JPH_ASSERT</a></div><div class="ttdeci">#define JPH_ASSERT(...)</div><div class="ttdef"><b>Definition</b> IssueReporting.h:33</div></div>
    327. 

  327. <div class="ttc" id="a_math_8h_html_a05be8f8200a1a67cbfacd3d16b17ac21"><div class="ttname"><a href="_math_8h.html#a05be8f8200a1a67cbfacd3d16b17ac21">Clamp</a></div><div class="ttdeci">JPH_INLINE constexpr T Clamp(T inV, T inMin, T inMax)</div><div class="ttdoc">Clamp a value between two values.</div><div class="ttdef"><b>Definition</b> Math.h:48</div></div>
    328. 

  328. <div class="ttc" id="a_spring_part_8h_html"><div class="ttname"><a href="_spring_part_8h.html">SpringPart.h</a></div></div>
    329. 

  329. <div class="ttc" id="a_spring_settings_8h_html"><div class="ttname"><a href="_spring_settings_8h.html">SpringSettings.h</a></div></div>
    330. 

  330. <div class="ttc" id="a_spring_settings_8h_html_ac805e5e93f24003512d2ca7e0d71512da52630869b4ed10261d514c91e9c9c018"><div class="ttname"><a href="_spring_settings_8h.html#ac805e5e93f24003512d2ca7e0d71512da52630869b4ed10261d514c91e9c9c018">ESpringMode::FrequencyAndDamping</a></div><div class="ttdeci">@ FrequencyAndDamping</div><div class="ttdoc">Frequency and damping are specified.</div></div>
    331. 

  331. <div class="ttc" id="a_state_recorder_8h_html"><div class="ttname"><a href="_state_recorder_8h.html">StateRecorder.h</a></div></div>
    332. 

  332. <div class="ttc" id="aclass_angle_constraint_part_html"><div class="ttname"><a href="class_angle_constraint_part.html">AngleConstraintPart</a></div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:37</div></div>
    333. 

  333. <div class="ttc" id="aclass_angle_constraint_part_html_a11bb8ed0daf36021dc407fd13cbfde90"><div class="ttname"><a href="class_angle_constraint_part.html#a11bb8ed0daf36021dc407fd13cbfde90">AngleConstraintPart::SolvePositionConstraint</a></div><div class="ttdeci">bool SolvePositionConstraint(Body &amp;ioBody1, Body &amp;ioBody2, float inC, float inBaumgarte) const</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:200</div></div>
    334. 

  334. <div class="ttc" id="aclass_angle_constraint_part_html_a13c8d05c1aef17b2edc81da4ea754404"><div class="ttname"><a href="class_angle_constraint_part.html#a13c8d05c1aef17b2edc81da4ea754404">AngleConstraintPart::CalculateConstraintPropertiesWithStiffnessAndDamping</a></div><div class="ttdeci">void CalculateConstraintPropertiesWithStiffnessAndDamping(float inDeltaTime, const Body &amp;inBody1, const Body &amp;inBody2, Vec3Arg inWorldSpaceAxis, float inBias, float inC, float inStiffness, float inDamping)</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:124</div></div>
    335. 

  335. <div class="ttc" id="aclass_angle_constraint_part_html_a27c8bf9c172f0d3867c1a489aa08c840"><div class="ttname"><a href="class_angle_constraint_part.html#a27c8bf9c172f0d3867c1a489aa08c840">AngleConstraintPart::Deactivate</a></div><div class="ttdeci">void Deactivate()</div><div class="ttdoc">Deactivate this constraint.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:148</div></div>
    336. 

  336. <div class="ttc" id="aclass_angle_constraint_part_html_a470e2813d397af02acc6bf8e8373431c"><div class="ttname"><a href="class_angle_constraint_part.html#a470e2813d397af02acc6bf8e8373431c">AngleConstraintPart::IsActive</a></div><div class="ttdeci">bool IsActive() const</div><div class="ttdoc">Check if constraint is active.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:155</div></div>
    337. 

  337. <div class="ttc" id="aclass_angle_constraint_part_html_a4db6fb3120c161301e04ee92276544d4"><div class="ttname"><a href="class_angle_constraint_part.html#a4db6fb3120c161301e04ee92276544d4">AngleConstraintPart::CalculateConstraintProperties</a></div><div class="ttdeci">void CalculateConstraintProperties(const Body &amp;inBody1, const Body &amp;inBody2, Vec3Arg inWorldSpaceAxis, float inBias=0.0f)</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:81</div></div>
    338. 

  338. <div class="ttc" id="aclass_angle_constraint_part_html_a80bd3ee7db86967d1a55100ab244d01c"><div class="ttname"><a href="class_angle_constraint_part.html#a80bd3ee7db86967d1a55100ab244d01c">AngleConstraintPart::RestoreState</a></div><div class="ttdeci">void RestoreState(StateRecorder &amp;inStream)</div><div class="ttdoc">Restore state of this constraint part.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:244</div></div>
    339. 

  339. <div class="ttc" id="aclass_angle_constraint_part_html_a8b54544706a1005ac865db7c445b76f1"><div class="ttname"><a href="class_angle_constraint_part.html#a8b54544706a1005ac865db7c445b76f1">AngleConstraintPart::WarmStart</a></div><div class="ttdeci">void WarmStart(Body &amp;ioBody1, Body &amp;ioBody2, float inWarmStartImpulseRatio)</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:164</div></div>
    340. 

  340. <div class="ttc" id="aclass_angle_constraint_part_html_aab9cd08fa77ca04f5ab6a6d5cfd78538"><div class="ttname"><a href="class_angle_constraint_part.html#aab9cd08fa77ca04f5ab6a6d5cfd78538">AngleConstraintPart::SolveVelocityConstraint</a></div><div class="ttdeci">bool SolveVelocityConstraint(Body &amp;ioBody1, Body &amp;ioBody2, Vec3Arg inWorldSpaceAxis, float inMinLambda, float inMaxLambda)</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:176</div></div>
    341. 

  341. <div class="ttc" id="aclass_angle_constraint_part_html_ab75081badd77c6854423f45825ff36ce"><div class="ttname"><a href="class_angle_constraint_part.html#ab75081badd77c6854423f45825ff36ce">AngleConstraintPart::SaveState</a></div><div class="ttdeci">void SaveState(StateRecorder &amp;inStream) const</div><div class="ttdoc">Save state of this constraint part.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:238</div></div>
    342. 

  342. <div class="ttc" id="aclass_angle_constraint_part_html_ac8eb562a067ed5596aca09e04ffc32d1"><div class="ttname"><a href="class_angle_constraint_part.html#ac8eb562a067ed5596aca09e04ffc32d1">AngleConstraintPart::CalculateConstraintPropertiesWithSettings</a></div><div class="ttdeci">void CalculateConstraintPropertiesWithSettings(float inDeltaTime, const Body &amp;inBody1, const Body &amp;inBody2, Vec3Arg inWorldSpaceAxis, float inBias, float inC, const SpringSettings &amp;inSpringSettings)</div><div class="ttdoc">Selects one of the above functions based on the spring settings.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:135</div></div>
    343. 

  343. <div class="ttc" id="aclass_angle_constraint_part_html_ace82e23e9129e1c30c93134a2d75504e"><div class="ttname"><a href="class_angle_constraint_part.html#ace82e23e9129e1c30c93134a2d75504e">AngleConstraintPart::CalculateConstraintPropertiesWithFrequencyAndDamping</a></div><div class="ttdeci">void CalculateConstraintPropertiesWithFrequencyAndDamping(float inDeltaTime, const Body &amp;inBody1, const Body &amp;inBody2, Vec3Arg inWorldSpaceAxis, float inBias, float inC, float inFrequency, float inDamping)</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:104</div></div>
    344. 

  344. <div class="ttc" id="aclass_angle_constraint_part_html_af482295498d9ca4f6fcdd0c034d0fb90"><div class="ttname"><a href="class_angle_constraint_part.html#af482295498d9ca4f6fcdd0c034d0fb90">AngleConstraintPart::GetTotalLambda</a></div><div class="ttdeci">float GetTotalLambda() const</div><div class="ttdoc">Return lagrange multiplier.</div><div class="ttdef"><b>Definition</b> AngleConstraintPart.h:190</div></div>
    345. 

  345. <div class="ttc" id="aclass_body_html"><div class="ttname"><a href="class_body.html">Body</a></div><div class="ttdef"><b>Definition</b> Body.h:39</div></div>
    346. 

  346. <div class="ttc" id="aclass_body_html_a0d39987255227c4221fcea66cb1fc041"><div class="ttname"><a href="class_body.html#a0d39987255227c4221fcea66cb1fc041">Body::GetMotionProperties</a></div><div class="ttdeci">const MotionProperties * GetMotionProperties() const</div><div class="ttdoc">Access to the motion properties.</div><div class="ttdef"><b>Definition</b> Body.h:308</div></div>
    347. 

  347. <div class="ttc" id="aclass_body_html_a1b21c30907c8c9ce30c176a054057bef"><div class="ttname"><a href="class_body.html#a1b21c30907c8c9ce30c176a054057bef">Body::IsDynamic</a></div><div class="ttdeci">bool IsDynamic() const</div><div class="ttdoc">Check if this body is dynamic, which means that it moves and forces can act on it.</div><div class="ttdef"><b>Definition</b> Body.h:67</div></div>
    348. 

  348. <div class="ttc" id="aclass_body_html_a3385650a73d75c7d9c16d13ea2d5519f"><div class="ttname"><a href="class_body.html#a3385650a73d75c7d9c16d13ea2d5519f">Body::AddRotationStep</a></div><div class="ttdeci">void AddRotationStep(Vec3Arg inAngularVelocityTimesDeltaTime)</div><div class="ttdoc">Update rotation using an Euler step (used during position integrate &amp; constraint solving)</div><div class="ttdef"><b>Definition</b> Body.inl:81</div></div>
    349. 

  349. <div class="ttc" id="aclass_body_html_aaee24bfb5e32e756f50113b9d1f45a2c"><div class="ttname"><a href="class_body.html#aaee24bfb5e32e756f50113b9d1f45a2c">Body::GetRotation</a></div><div class="ttdeci">Quat GetRotation() const</div><div class="ttdoc">World space rotation of the body.</div><div class="ttdef"><b>Definition</b> Body.h:271</div></div>
    350. 

  350. <div class="ttc" id="aclass_body_html_ab0df53d82e3a8356fac91d178b30c369"><div class="ttname"><a href="class_body.html#ab0df53d82e3a8356fac91d178b30c369">Body::SubRotationStep</a></div><div class="ttdeci">void SubRotationStep(Vec3Arg inAngularVelocityTimesDeltaTime)</div><div class="ttdef"><b>Definition</b> Body.inl:100</div></div>
    351. 

  351. <div class="ttc" id="aclass_body_html_adb1bb49db094ac2ef7c4951d07ba8417"><div class="ttname"><a href="class_body.html#adb1bb49db094ac2ef7c4951d07ba8417">Body::GetAngularVelocity</a></div><div class="ttdeci">Vec3 GetAngularVelocity() const</div><div class="ttdoc">Get world space angular velocity of the center of mass (unit: rad/s)</div><div class="ttdef"><b>Definition</b> Body.h:161</div></div>
    352. 

  352. <div class="ttc" id="aclass_motion_properties_html_a98672fc0c6884643944e570e1d78ac07"><div class="ttname"><a href="class_motion_properties.html#a98672fc0c6884643944e570e1d78ac07">MotionProperties::SubAngularVelocityStep</a></div><div class="ttdeci">void SubAngularVelocityStep(Vec3Arg inAngularVelocityChange)</div><div class="ttdef"><b>Definition</b> MotionProperties.h:220</div></div>
    353. 

  353. <div class="ttc" id="aclass_motion_properties_html_aa8a73ea7940a316151262ed9a28c4fbb"><div class="ttname"><a href="class_motion_properties.html#aa8a73ea7940a316151262ed9a28c4fbb">MotionProperties::MultiplyWorldSpaceInverseInertiaByVector</a></div><div class="ttdeci">JPH_INLINE Vec3 MultiplyWorldSpaceInverseInertiaByVector(QuatArg inBodyRotation, Vec3Arg inV) const</div><div class="ttdoc">Multiply a vector with the inverse world space inertia tensor ( ). Zero if object is static or kinema...</div><div class="ttdef"><b>Definition</b> MotionProperties.inl:86</div></div>
    354. 

  354. <div class="ttc" id="aclass_motion_properties_html_afb12aa823a651145b46b271570a7af59"><div class="ttname"><a href="class_motion_properties.html#afb12aa823a651145b46b271570a7af59">MotionProperties::AddAngularVelocityStep</a></div><div class="ttdeci">void AddAngularVelocityStep(Vec3Arg inAngularVelocityChange)</div><div class="ttdef"><b>Definition</b> MotionProperties.h:219</div></div>
    355. 

  355. <div class="ttc" id="aclass_spring_part_html"><div class="ttname"><a href="class_spring_part.html">SpringPart</a></div><div class="ttdoc">Class used in other constraint parts to calculate the required bias factor in the lagrange multiplier...</div><div class="ttdef"><b>Definition</b> SpringPart.h:14</div></div>
    356. 

  356. <div class="ttc" id="aclass_spring_part_html_a0414048df549022dee152c2b18b31126"><div class="ttname"><a href="class_spring_part.html#a0414048df549022dee152c2b18b31126">SpringPart::CalculateSpringPropertiesWithFrequencyAndDamping</a></div><div class="ttdeci">void CalculateSpringPropertiesWithFrequencyAndDamping(float inDeltaTime, float inInvEffectiveMass, float inBias, float inC, float inFrequency, float inDamping, float &amp;outEffectiveMass)</div><div class="ttdef"><b>Definition</b> SpringPart.h:86</div></div>
    357. 

  357. <div class="ttc" id="aclass_spring_part_html_a318ab5426c6b10a8ceebd3258144d20a"><div class="ttname"><a href="class_spring_part.html#a318ab5426c6b10a8ceebd3258144d20a">SpringPart::CalculateSpringPropertiesWithStiffnessAndDamping</a></div><div class="ttdeci">void CalculateSpringPropertiesWithStiffnessAndDamping(float inDeltaTime, float inInvEffectiveMass, float inBias, float inC, float inStiffness, float inDamping, float &amp;outEffectiveMass)</div><div class="ttdef"><b>Definition</b> SpringPart.h:116</div></div>
    358. 

  358. <div class="ttc" id="aclass_spring_part_html_a42a39d96e15ae84419256c35067e12ad"><div class="ttname"><a href="class_spring_part.html#a42a39d96e15ae84419256c35067e12ad">SpringPart::GetBias</a></div><div class="ttdeci">float GetBias(float inTotalLambda) const</div><div class="ttdoc">Get total bias b, including supplied bias and bias for spring: lambda = J v + b.</div><div class="ttdef"><b>Definition</b> SpringPart.h:137</div></div>
    359. 

  359. <div class="ttc" id="aclass_spring_part_html_a75d1d4a45e975a5b9b0ad99525c9f52f"><div class="ttname"><a href="class_spring_part.html#a75d1d4a45e975a5b9b0ad99525c9f52f">SpringPart::CalculateSpringPropertiesWithBias</a></div><div class="ttdeci">void CalculateSpringPropertiesWithBias(float inBias)</div><div class="ttdef"><b>Definition</b> SpringPart.h:71</div></div>
    360. 

  360. <div class="ttc" id="aclass_spring_part_html_a9dbe7d09f4a6aaf7f5edd106fb6fe335"><div class="ttname"><a href="class_spring_part.html#a9dbe7d09f4a6aaf7f5edd106fb6fe335">SpringPart::IsActive</a></div><div class="ttdeci">bool IsActive() const</div><div class="ttdoc">Returns if this spring is active.</div><div class="ttdef"><b>Definition</b> SpringPart.h:131</div></div>
    361. 

  361. <div class="ttc" id="aclass_spring_settings_html"><div class="ttname"><a href="class_spring_settings.html">SpringSettings</a></div><div class="ttdoc">Settings for a linear or angular spring.</div><div class="ttdef"><b>Definition</b> SpringSettings.h:23</div></div>
    362. 

  362. <div class="ttc" id="aclass_spring_settings_html_a688815c0e85518f1ac42f1d077415472"><div class="ttname"><a href="class_spring_settings.html#a688815c0e85518f1ac42f1d077415472">SpringSettings::mStiffness</a></div><div class="ttdeci">float mStiffness</div><div class="ttdef"><b>Definition</b> SpringSettings.h:60</div></div>
    363. 

  363. <div class="ttc" id="aclass_spring_settings_html_a72165bbe14974afb17df18e88f6d205e"><div class="ttname"><a href="class_spring_settings.html#a72165bbe14974afb17df18e88f6d205e">SpringSettings::mDamping</a></div><div class="ttdeci">float mDamping</div><div class="ttdef"><b>Definition</b> SpringSettings.h:67</div></div>
    364. 

  364. <div class="ttc" id="aclass_spring_settings_html_a7d27c541e7d25d9da0c263ec99ea528a"><div class="ttname"><a href="class_spring_settings.html#a7d27c541e7d25d9da0c263ec99ea528a">SpringSettings::mMode</a></div><div class="ttdeci">ESpringMode mMode</div><div class="ttdef"><b>Definition</b> SpringSettings.h:44</div></div>
    365. 

  365. <div class="ttc" id="aclass_spring_settings_html_acea8e3f5767edbfaffa01417733b5dc0"><div class="ttname"><a href="class_spring_settings.html#acea8e3f5767edbfaffa01417733b5dc0">SpringSettings::mFrequency</a></div><div class="ttdeci">float mFrequency</div><div class="ttdef"><b>Definition</b> SpringSettings.h:51</div></div>
    366. 

  366. <div class="ttc" id="aclass_state_recorder_html"><div class="ttname"><a href="class_state_recorder.html">StateRecorder</a></div><div class="ttdef"><b>Definition</b> StateRecorder.h:110</div></div>
    367. 

  367. <div class="ttc" id="aclass_stream_in_html_a5ae9304c310edfc5ef1c67a95e36b1f3"><div class="ttname"><a href="class_stream_in.html#a5ae9304c310edfc5ef1c67a95e36b1f3">StreamIn::Read</a></div><div class="ttdeci">void Read(T &amp;outT)</div><div class="ttdoc">Read a primitive (e.g. float, int, etc.) from the binary stream.</div><div class="ttdef"><b>Definition</b> StreamIn.h:30</div></div>
    368. 

  368. <div class="ttc" id="aclass_stream_out_html_a879dce6c6c6ca5e63835fe61cc745966"><div class="ttname"><a href="class_stream_out.html#a879dce6c6c6ca5e63835fe61cc745966">StreamOut::Write</a></div><div class="ttdeci">void Write(const T &amp;inT)</div><div class="ttdoc">Write a primitive (e.g. float, int, etc.) to the binary stream.</div><div class="ttdef"><b>Definition</b> StreamOut.h:26</div></div>
    369. 

  369. <div class="ttc" id="aclass_vec3_html"><div class="ttname"><a href="class_vec3.html">Vec3</a></div><div class="ttdef"><b>Definition</b> Vec3.h:17</div></div>
    370. 

  370. <div class="ttc" id="aclass_vec3_html_a0e078ff09f69e669db71a2b0e37939ff"><div class="ttname"><a href="class_vec3.html#a0e078ff09f69e669db71a2b0e37939ff">Vec3::Dot</a></div><div class="ttdeci">JPH_INLINE float Dot(Vec3Arg inV2) const</div><div class="ttdoc">Dot product.</div><div class="ttdef"><b>Definition</b> Vec3.inl:650</div></div>
    371. 

  371. <div class="ttc" id="aclass_vec3_html_a2f10743d69960eaac721399e4ede190a"><div class="ttname"><a href="class_vec3.html#a2f10743d69960eaac721399e4ede190a">Vec3::IsNormalized</a></div><div class="ttdeci">JPH_INLINE bool IsNormalized(float inTolerance=1.0e-6f) const</div><div class="ttdoc">Test if vector is normalized.</div><div class="ttdef"><b>Definition</b> Vec3.inl:752</div></div>
    372. 

  372. <div class="ttc" id="aclass_vec3_html_ad03c52ab27761bc1e64e33c47632ba51"><div class="ttname"><a href="class_vec3.html#ad03c52ab27761bc1e64e33c47632ba51">Vec3::sZero</a></div><div class="ttdeci">static JPH_INLINE Vec3 sZero()</div><div class="ttdoc">Vector with all zeros.</div><div class="ttdef"><b>Definition</b> Vec3.inl:103</div></div>
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