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<div id="projectname">Box2D
 <span id="projectnumber">2.3.0</span>
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<div id="projectbrief">A 2D Physics Engine for Games</div>
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<li class="navelem"><a class="el" href="dir_a7f953fea4e008d17e00594b3bbaff29.html">Box2D</a></li><li class="navelem"><a class="el" href="dir_54cad791c4d2b04cb4a0ba0bba686f79.html">Dynamics</a></li><li class="navelem"><a class="el" href="dir_6d0481e1d3c0616ecae75ec35bddf767.html">Contacts</a></li> </ul>
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<div class="title">b2Contact.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">* Copyright (c) 2006-2009 Erin Catto http://www.box2d.org</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">*</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">* This software is provided 'as-is', without any express or implied</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">* warranty. In no event will the authors be held liable for any damages</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">* arising from the use of this software.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">* Permission is granted to anyone to use this software for any purpose,</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">* including commercial applications, and to alter it and redistribute it</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">* freely, subject to the following restrictions:</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">* 1. The origin of this software must not be misrepresented; you must not</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">* claim that you wrote the original software. If you use this software</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">* in a product, an acknowledgment in the product documentation would be</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">* appreciated but is not required.</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">* 2. Altered source versions must be plainly marked as such, and must not be</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">* misrepresented as being the original software.</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">* 3. This notice may not be removed or altered from any source distribution.</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></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> <span class="preprocessor">#ifndef B2_CONTACT_H</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define B2_CONTACT_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <Box2D/Common/b2Math.h></span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="b2_collision_8h.html">Box2D/Collision/b2Collision.h</a>></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <Box2D/Collision/Shapes/b2Shape.h></span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <Box2D/Dynamics/b2Fixture.h></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">class </span><a class="code" href="classb2_body.html">b2Body</a>;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">class </span><a class="code" href="classb2_contact.html">b2Contact</a>;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">class </span><a class="code" href="classb2_fixture.html">b2Fixture</a>;</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">class </span><a class="code" href="classb2_world.html">b2World</a>;</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">class </span><a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>;</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">class </span><a class="code" href="classb2_stack_allocator.html">b2StackAllocator</a>;</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">class </span><a class="code" href="classb2_contact_listener.html">b2ContactListener</a>;</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">inline</span> float32 b2MixFriction(float32 friction1, float32 friction2)</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordflow">return</span> b2Sqrt(friction1 * friction2);</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> }</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="keyword">inline</span> float32 b2MixRestitution(float32 restitution1, float32 restitution2)</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordflow">return</span> restitution1 > restitution2 ? restitution1 : restitution2;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> }</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> <span class="keyword">typedef</span> <a class="code" href="classb2_contact.html">b2Contact</a>* b2ContactCreateFcn( <a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureA, int32 indexA,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureB, int32 indexB,</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">typedef</span> <span class="keywordtype">void</span> b2ContactDestroyFcn(<a class="code" href="classb2_contact.html">b2Contact</a>* contact, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structb2_contact_register.html"> 54</a></span> <span class="keyword">struct </span><a class="code" href="structb2_contact_register.html">b2ContactRegister</a></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  b2ContactCreateFcn* createFcn;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  b2ContactDestroyFcn* destroyFcn;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">bool</span> primary;</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="l00066"></a><span class="lineno"><a class="line" href="structb2_contact_edge.html"> 66</a></span> <span class="keyword">struct </span><a class="code" href="structb2_contact_edge.html">b2ContactEdge</a></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> {</div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="structb2_contact_edge.html#a69015fc22e064eac04ed74f27a13ae78"> 68</a></span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="structb2_contact_edge.html#a69015fc22e064eac04ed74f27a13ae78">other</a>; </div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structb2_contact_edge.html#a2fbfaffa0dfdf715fd1a709cff939dee"> 69</a></span>  <a class="code" href="classb2_contact.html">b2Contact</a>* <a class="code" href="structb2_contact_edge.html#a2fbfaffa0dfdf715fd1a709cff939dee">contact</a>; </div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="structb2_contact_edge.html#a606dfacb78dc5c51672e4d7449006b8c"> 70</a></span>  <a class="code" href="structb2_contact_edge.html">b2ContactEdge</a>* <a class="code" href="structb2_contact_edge.html#a606dfacb78dc5c51672e4d7449006b8c">prev</a>; </div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="structb2_contact_edge.html#a9af32b3cfadf35a927f4dffcf6338a6d"> 71</a></span>  <a class="code" href="structb2_contact_edge.html">b2ContactEdge</a>* <a class="code" href="structb2_contact_edge.html#a9af32b3cfadf35a927f4dffcf6338a6d">next</a>; </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> };</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classb2_contact.html"> 77</a></span> <span class="keyword">class </span><a class="code" href="classb2_contact.html">b2Contact</a></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> <span class="keyword">public</span>:</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <a class="code" href="structb2_manifold.html">b2Manifold</a>* <a class="code" href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979">GetManifold</a>();</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keyword">const</span> <a class="code" href="structb2_manifold.html">b2Manifold</a>* <a class="code" href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979">GetManifold</a>() <span class="keyword">const</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>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a7f5645863f6197fa28cc1baafbd11255">GetWorldManifold</a>(<a class="code" href="structb2_world_manifold.html">b2WorldManifold</a>* worldManifold) <span class="keyword">const</span>;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordtype">bool</span> <a class="code" href="classb2_contact.html#a681346f93e2a27403383775a752c06a0">IsTouching</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a6edf582f8c161d6632854cddefe55a0c">SetEnabled</a>(<span class="keywordtype">bool</span> flag);</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">bool</span> <a class="code" href="classb2_contact.html#af81964f40dce556efbc83ae760f166b0">IsEnabled</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <a class="code" href="classb2_contact.html">b2Contact</a>* <a class="code" href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650">GetNext</a>();</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keyword">const</span> <a class="code" href="classb2_contact.html">b2Contact</a>* <a class="code" href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650">GetNext</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037">GetFixtureA</a>();</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">const</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037">GetFixtureA</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  int32 <a class="code" href="classb2_contact.html#aa0b0739e6615ba8d38e9b5bd8761dc31">GetChildIndexA</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361">GetFixtureB</a>();</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">const</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361">GetFixtureB</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  int32 <a class="code" href="classb2_contact.html#aab201068e7f2cc31c69b1f5c8471d672">GetChildIndexB</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a5e8fbb6bb2966ac84272bb0ea9d2e4c7">SetFriction</a>(float32 friction);</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  float32 <a class="code" href="classb2_contact.html#a7650ec27931c82f3914f37fdeb267b02">GetFriction</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#ad66d9290da187cef4c9f48c5766d4460">ResetFriction</a>();</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a24ca342c2bb766c53ef5ad04f5268fc1">SetRestitution</a>(float32 restitution);</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  float32 <a class="code" href="classb2_contact.html#a9fb6e637026914c8752f89f91122b561">GetRestitution</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a243501bc5c146e9eb1296162d328aef1">ResetRestitution</a>();</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a32033914a6c7f35b469e8fddbc17c566">SetTangentSpeed</a>(float32 speed);</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  float32 <a class="code" href="classb2_contact.html#a927125db0b36947a3bb53c4e3eded1cd">GetTangentSpeed</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#ae3c2842e5325b2d4500f8ed1d4de2f72">Evaluate</a>(<a class="code" href="structb2_manifold.html">b2Manifold</a>* manifold, <span class="keyword">const</span> <a class="code" href="structb2_transform.html">b2Transform</a>& xfA, <span class="keyword">const</span> <a class="code" href="structb2_transform.html">b2Transform</a>& xfB) = 0;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_contact_manager.html">b2ContactManager</a>;</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_world.html">b2World</a>;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_contact_solver.html">b2ContactSolver</a>;</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_body.html">b2Body</a>;</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_fixture.html">b2Fixture</a>;</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>  <span class="comment">// Flags stored in m_flags</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">enum</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>  <span class="comment">// Used when crawling contact graph when forming islands.</span></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  e_islandFlag = 0x0001,</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="comment">// Set when the shapes are touching.</span></div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  e_touchingFlag = 0x0002,</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// This contact can be disabled (by user)</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  e_enabledFlag = 0x0004,</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="comment">// This contact needs filtering because a fixture filter was changed.</span></div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  e_filterFlag = 0x0008,</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="comment">// This bullet contact had a TOI event</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  e_bulletHitFlag = 0x0010,</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="comment">// This contact has a valid TOI in m_toi</span></div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  e_toiFlag = 0x0020</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  };</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a44a3d32149021269eb9dfd4015c98e0d">FlagForFiltering</a>();</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> </div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> AddType(b2ContactCreateFcn* createFcn, b2ContactDestroyFcn* destroyFcn,</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  b2Shape::Type typeA, b2Shape::Type typeB);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> InitializeRegisters();</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">static</span> <a class="code" href="classb2_contact.html">b2Contact</a>* Create(<a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureA, int32 indexA, <a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureB, int32 indexB, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> Destroy(<a class="code" href="classb2_contact.html">b2Contact</a>* contact, b2Shape::Type typeA, b2Shape::Type typeB, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> Destroy(<a class="code" href="classb2_contact.html">b2Contact</a>* contact, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="classb2_contact.html">b2Contact</a>() : m_fixtureA(NULL), m_fixtureB(NULL) {}</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a class="code" href="classb2_contact.html">b2Contact</a>(<a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureA, int32 indexA, <a class="code" href="classb2_fixture.html">b2Fixture</a>* fixtureB, int32 indexB);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">virtual</span> ~<a class="code" href="classb2_contact.html">b2Contact</a>() {}</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">void</span> Update(<a class="code" href="classb2_contact_listener.html">b2ContactListener</a>* listener);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keyword">static</span> <a class="code" href="structb2_contact_register.html">b2ContactRegister</a> s_registers[b2Shape::e_typeCount][b2Shape::e_typeCount];</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">static</span> <span class="keywordtype">bool</span> s_initialized;</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  uint32 m_flags;</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>  <span class="comment">// World pool and list pointers.</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <a class="code" href="classb2_contact.html">b2Contact</a>* m_prev;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <a class="code" href="classb2_contact.html">b2Contact</a>* m_next;</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="comment">// Nodes for connecting bodies.</span></div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <a class="code" href="structb2_contact_edge.html">b2ContactEdge</a> m_nodeA;</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="structb2_contact_edge.html">b2ContactEdge</a> m_nodeB;</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <a class="code" href="classb2_fixture.html">b2Fixture</a>* m_fixtureA;</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="classb2_fixture.html">b2Fixture</a>* m_fixtureB;</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  int32 m_indexA;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  int32 m_indexB;</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="structb2_manifold.html">b2Manifold</a> m_manifold;</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>  int32 m_toiCount;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  float32 m_toi;</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>  float32 m_friction;</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  float32 m_restitution;</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>  float32 m_tangentSpeed;</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</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"><a class="line" href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979"> 222</a></span> <span class="keyword">inline</span> <a class="code" href="structb2_manifold.html">b2Manifold</a>* <a class="code" href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979">b2Contact::GetManifold</a>()</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> {</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keywordflow">return</span> &m_manifold;</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> }</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> </div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="structb2_manifold.html">b2Manifold</a>* <a class="code" href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979">b2Contact::GetManifold</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keyword"></span>{</div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="keywordflow">return</span> &m_manifold;</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span> }</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="classb2_contact.html#a7f5645863f6197fa28cc1baafbd11255"> 232</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a7f5645863f6197fa28cc1baafbd11255">b2Contact::GetWorldManifold</a>(<a class="code" href="structb2_world_manifold.html">b2WorldManifold</a>* worldManifold)<span class="keyword"> const</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="keyword"></span>{</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="keyword">const</span> <a class="code" href="classb2_body.html">b2Body</a>* bodyA = m_fixtureA-><a class="code" href="classb2_fixture.html#a9d6536ef274d768e86ab0a8330921535">GetBody</a>();</div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keyword">const</span> <a class="code" href="classb2_body.html">b2Body</a>* bodyB = m_fixtureB-><a class="code" href="classb2_fixture.html#a9d6536ef274d768e86ab0a8330921535">GetBody</a>();</div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keyword">const</span> <a class="code" href="classb2_shape.html">b2Shape</a>* shapeA = m_fixtureA-><a class="code" href="classb2_fixture.html#aaa2b73fa212fa53b1c800cccd7a1d31e">GetShape</a>();</div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">const</span> <a class="code" href="classb2_shape.html">b2Shape</a>* shapeB = m_fixtureB-><a class="code" href="classb2_fixture.html#aaa2b73fa212fa53b1c800cccd7a1d31e">GetShape</a>();</div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  worldManifold-><a class="code" href="structb2_world_manifold.html#a896dd7e7d4d6f6a5bc69e19fbd6871bd">Initialize</a>(&m_manifold, bodyA-><a class="code" href="classb2_body.html#afb316448e6e555ceb2df23ed216b2f53">GetTransform</a>(), shapeA->m_radius, bodyB-><a class="code" href="classb2_body.html#afb316448e6e555ceb2df23ed216b2f53">GetTransform</a>(), shapeB->m_radius);</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</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"><a class="line" href="classb2_contact.html#a6edf582f8c161d6632854cddefe55a0c"> 242</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a6edf582f8c161d6632854cddefe55a0c">b2Contact::SetEnabled</a>(<span class="keywordtype">bool</span> flag)</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span> {</div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (flag)</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  {</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  m_flags |= e_enabledFlag;</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>  <span class="keywordflow">else</span></div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  m_flags &= ~e_enabledFlag;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  }</div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span> }</div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span> </div><div class="line"><a name="l00254"></a><span class="lineno"><a class="line" href="classb2_contact.html#af81964f40dce556efbc83ae760f166b0"> 254</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classb2_contact.html#af81964f40dce556efbc83ae760f166b0">b2Contact::IsEnabled</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span> <span class="keyword"></span>{</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">return</span> (m_flags & e_enabledFlag) == e_enabledFlag;</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span> }</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span> </div><div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="classb2_contact.html#a681346f93e2a27403383775a752c06a0"> 259</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classb2_contact.html#a681346f93e2a27403383775a752c06a0">b2Contact::IsTouching</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> <span class="keyword"></span>{</div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="keywordflow">return</span> (m_flags & e_touchingFlag) == e_touchingFlag;</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span> }</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div><div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650"> 264</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_contact.html">b2Contact</a>* <a class="code" href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650">b2Contact::GetNext</a>()</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span> {</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">return</span> m_next;</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span> }</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span> </div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classb2_contact.html">b2Contact</a>* <a class="code" href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650">b2Contact::GetNext</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span> <span class="keyword"></span>{</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">return</span> m_next;</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span> }</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div><div class="line"><a name="l00274"></a><span class="lineno"><a class="line" href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037"> 274</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037">b2Contact::GetFixtureA</a>()</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> {</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  <span class="keywordflow">return</span> m_fixtureA;</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> }</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> </div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037">b2Contact::GetFixtureA</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="keyword"></span>{</div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keywordflow">return</span> m_fixtureA;</div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> }</div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> </div><div class="line"><a name="l00284"></a><span class="lineno"><a class="line" href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361"> 284</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361">b2Contact::GetFixtureB</a>()</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>  <span class="keywordflow">return</span> m_fixtureB;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> }</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> </div><div class="line"><a name="l00289"></a><span class="lineno"><a class="line" href="classb2_contact.html#aa0b0739e6615ba8d38e9b5bd8761dc31"> 289</a></span> <span class="keyword">inline</span> int32 <a class="code" href="classb2_contact.html#aa0b0739e6615ba8d38e9b5bd8761dc31">b2Contact::GetChildIndexA</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="keyword"></span>{</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  <span class="keywordflow">return</span> m_indexA;</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> }</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classb2_fixture.html">b2Fixture</a>* <a class="code" href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361">b2Contact::GetFixtureB</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="keyword"></span>{</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> m_fixtureB;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span> }</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span> </div><div class="line"><a name="l00299"></a><span class="lineno"><a class="line" href="classb2_contact.html#aab201068e7f2cc31c69b1f5c8471d672"> 299</a></span> <span class="keyword">inline</span> int32 <a class="code" href="classb2_contact.html#aab201068e7f2cc31c69b1f5c8471d672">b2Contact::GetChildIndexB</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span> <span class="keyword"></span>{</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">return</span> m_indexB;</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> }</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span> </div><div class="line"><a name="l00304"></a><span class="lineno"><a class="line" href="classb2_contact.html#a44a3d32149021269eb9dfd4015c98e0d"> 304</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a44a3d32149021269eb9dfd4015c98e0d">b2Contact::FlagForFiltering</a>()</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span> {</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  m_flags |= e_filterFlag;</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span> }</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div><div class="line"><a name="l00309"></a><span class="lineno"><a class="line" href="classb2_contact.html#a5e8fbb6bb2966ac84272bb0ea9d2e4c7"> 309</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a5e8fbb6bb2966ac84272bb0ea9d2e4c7">b2Contact::SetFriction</a>(float32 friction)</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> {</div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  m_friction = friction;</div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span> }</div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span> </div><div class="line"><a name="l00314"></a><span class="lineno"><a class="line" href="classb2_contact.html#a7650ec27931c82f3914f37fdeb267b02"> 314</a></span> <span class="keyword">inline</span> float32 <a class="code" href="classb2_contact.html#a7650ec27931c82f3914f37fdeb267b02">b2Contact::GetFriction</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="keyword"></span>{</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">return</span> m_friction;</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span> }</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div><div class="line"><a name="l00319"></a><span class="lineno"><a class="line" href="classb2_contact.html#ad66d9290da187cef4c9f48c5766d4460"> 319</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#ad66d9290da187cef4c9f48c5766d4460">b2Contact::ResetFriction</a>()</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span> {</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  m_friction = b2MixFriction(m_fixtureA->m_friction, m_fixtureB->m_friction);</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span> }</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div><div class="line"><a name="l00324"></a><span class="lineno"><a class="line" href="classb2_contact.html#a24ca342c2bb766c53ef5ad04f5268fc1"> 324</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a24ca342c2bb766c53ef5ad04f5268fc1">b2Contact::SetRestitution</a>(float32 restitution)</div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span> {</div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  m_restitution = restitution;</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</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"><a class="line" href="classb2_contact.html#a9fb6e637026914c8752f89f91122b561"> 329</a></span> <span class="keyword">inline</span> float32 <a class="code" href="classb2_contact.html#a9fb6e637026914c8752f89f91122b561">b2Contact::GetRestitution</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span> <span class="keyword"></span>{</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">return</span> m_restitution;</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span> }</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div><div class="line"><a name="l00334"></a><span class="lineno"><a class="line" href="classb2_contact.html#a243501bc5c146e9eb1296162d328aef1"> 334</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a243501bc5c146e9eb1296162d328aef1">b2Contact::ResetRestitution</a>()</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span> {</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  m_restitution = b2MixRestitution(m_fixtureA->m_restitution, m_fixtureB->m_restitution);</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span> }</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div><div class="line"><a name="l00339"></a><span class="lineno"><a class="line" href="classb2_contact.html#a32033914a6c7f35b469e8fddbc17c566"> 339</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_contact.html#a32033914a6c7f35b469e8fddbc17c566">b2Contact::SetTangentSpeed</a>(float32 speed)</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span> {</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  m_tangentSpeed = speed;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span> }</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span> </div><div class="line"><a name="l00344"></a><span class="lineno"><a class="line" href="classb2_contact.html#a927125db0b36947a3bb53c4e3eded1cd"> 344</a></span> <span class="keyword">inline</span> float32 <a class="code" href="classb2_contact.html#a927125db0b36947a3bb53c4e3eded1cd">b2Contact::GetTangentSpeed</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span> <span class="keyword"></span>{</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keywordflow">return</span> m_tangentSpeed;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span> }</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span> </div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span> <span class="preprocessor">#endif</span></div><div class="ttc" id="structb2_transform_html"><div class="ttname"><a href="structb2_transform.html">b2Transform</a></div><div class="ttdef"><b>Definition:</b> b2Math.h:350</div></div>
<div class="ttc" id="classb2_contact_html_a681346f93e2a27403383775a752c06a0"><div class="ttname"><a href="classb2_contact.html#a681346f93e2a27403383775a752c06a0">b2Contact::IsTouching</a></div><div class="ttdeci">bool IsTouching() const</div><div class="ttdoc">Is this contact touching? </div><div class="ttdef"><b>Definition:</b> b2Contact.h:259</div></div>
<div class="ttc" id="structb2_contact_edge_html_a69015fc22e064eac04ed74f27a13ae78"><div class="ttname"><a href="structb2_contact_edge.html#a69015fc22e064eac04ed74f27a13ae78">b2ContactEdge::other</a></div><div class="ttdeci">b2Body * other</div><div class="ttdoc">provides quick access to the other body attached. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:68</div></div>
<div class="ttc" id="classb2_contact_html_aa0b0739e6615ba8d38e9b5bd8761dc31"><div class="ttname"><a href="classb2_contact.html#aa0b0739e6615ba8d38e9b5bd8761dc31">b2Contact::GetChildIndexA</a></div><div class="ttdeci">int32 GetChildIndexA() const</div><div class="ttdoc">Get the child primitive index for fixture A. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:289</div></div>
<div class="ttc" id="structb2_world_manifold_html"><div class="ttname"><a href="structb2_world_manifold.html">b2WorldManifold</a></div><div class="ttdoc">This is used to compute the current state of a contact manifold. </div><div class="ttdef"><b>Definition:</b> b2Collision.h:110</div></div>
<div class="ttc" id="classb2_contact_html_a7650ec27931c82f3914f37fdeb267b02"><div class="ttname"><a href="classb2_contact.html#a7650ec27931c82f3914f37fdeb267b02">b2Contact::GetFriction</a></div><div class="ttdeci">float32 GetFriction() const</div><div class="ttdoc">Get the friction. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:314</div></div>
<div class="ttc" id="classb2_stack_allocator_html"><div class="ttname"><a href="classb2_stack_allocator.html">b2StackAllocator</a></div><div class="ttdef"><b>Definition:</b> b2StackAllocator.h:37</div></div>
<div class="ttc" id="classb2_world_html"><div class="ttname"><a href="classb2_world.html">b2World</a></div><div class="ttdef"><b>Definition:</b> b2World.h:41</div></div>
<div class="ttc" id="structb2_contact_edge_html_a2fbfaffa0dfdf715fd1a709cff939dee"><div class="ttname"><a href="structb2_contact_edge.html#a2fbfaffa0dfdf715fd1a709cff939dee">b2ContactEdge::contact</a></div><div class="ttdeci">b2Contact * contact</div><div class="ttdoc">the contact </div><div class="ttdef"><b>Definition:</b> b2Contact.h:69</div></div>
<div class="ttc" id="structb2_world_manifold_html_a896dd7e7d4d6f6a5bc69e19fbd6871bd"><div class="ttname"><a href="structb2_world_manifold.html#a896dd7e7d4d6f6a5bc69e19fbd6871bd">b2WorldManifold::Initialize</a></div><div class="ttdeci">void Initialize(const b2Manifold *manifold, const b2Transform &xfA, float32 radiusA, const b2Transform &xfB, float32 radiusB)</div><div class="ttdef"><b>Definition:</b> b2Collision.cpp:22</div></div>
<div class="ttc" id="classb2_contact_html_af81964f40dce556efbc83ae760f166b0"><div class="ttname"><a href="classb2_contact.html#af81964f40dce556efbc83ae760f166b0">b2Contact::IsEnabled</a></div><div class="ttdeci">bool IsEnabled() const</div><div class="ttdoc">Has this contact been disabled? </div><div class="ttdef"><b>Definition:</b> b2Contact.h:254</div></div>
<div class="ttc" id="classb2_contact_listener_html"><div class="ttname"><a href="classb2_contact_listener.html">b2ContactListener</a></div><div class="ttdef"><b>Definition:</b> b2WorldCallbacks.h:81</div></div>
<div class="ttc" id="classb2_block_allocator_html"><div class="ttname"><a href="classb2_block_allocator.html">b2BlockAllocator</a></div><div class="ttdef"><b>Definition:</b> b2BlockAllocator.h:35</div></div>
<div class="ttc" id="classb2_shape_html"><div class="ttname"><a href="classb2_shape.html">b2Shape</a></div><div class="ttdef"><b>Definition:</b> b2Shape.h:42</div></div>
<div class="ttc" id="classb2_contact_html_a24ca342c2bb766c53ef5ad04f5268fc1"><div class="ttname"><a href="classb2_contact.html#a24ca342c2bb766c53ef5ad04f5268fc1">b2Contact::SetRestitution</a></div><div class="ttdeci">void SetRestitution(float32 restitution)</div><div class="ttdef"><b>Definition:</b> b2Contact.h:324</div></div>
<div class="ttc" id="b2_collision_8h_html"><div class="ttname"><a href="b2_collision_8h.html">b2Collision.h</a></div></div>
<div class="ttc" id="structb2_contact_edge_html"><div class="ttname"><a href="structb2_contact_edge.html">b2ContactEdge</a></div><div class="ttdef"><b>Definition:</b> b2Contact.h:66</div></div>
<div class="ttc" id="classb2_contact_html_ad66d9290da187cef4c9f48c5766d4460"><div class="ttname"><a href="classb2_contact.html#ad66d9290da187cef4c9f48c5766d4460">b2Contact::ResetFriction</a></div><div class="ttdeci">void ResetFriction()</div><div class="ttdoc">Reset the friction mixture to the default value. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:319</div></div>
<div class="ttc" id="classb2_fixture_html_a9d6536ef274d768e86ab0a8330921535"><div class="ttname"><a href="classb2_fixture.html#a9d6536ef274d768e86ab0a8330921535">b2Fixture::GetBody</a></div><div class="ttdeci">b2Body * GetBody()</div><div class="ttdef"><b>Definition:</b> b2Fixture.h:273</div></div>
<div class="ttc" id="classb2_fixture_html_aaa2b73fa212fa53b1c800cccd7a1d31e"><div class="ttname"><a href="classb2_fixture.html#aaa2b73fa212fa53b1c800cccd7a1d31e">b2Fixture::GetShape</a></div><div class="ttdeci">b2Shape * GetShape()</div><div class="ttdef"><b>Definition:</b> b2Fixture.h:243</div></div>
<div class="ttc" id="classb2_contact_html_a44a3d32149021269eb9dfd4015c98e0d"><div class="ttname"><a href="classb2_contact.html#a44a3d32149021269eb9dfd4015c98e0d">b2Contact::FlagForFiltering</a></div><div class="ttdeci">void FlagForFiltering()</div><div class="ttdoc">Flag this contact for filtering. Filtering will occur the next time step. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:304</div></div>
<div class="ttc" id="classb2_contact_html_a68464fe587d7e6a1f52763e965bb7361"><div class="ttname"><a href="classb2_contact.html#a68464fe587d7e6a1f52763e965bb7361">b2Contact::GetFixtureB</a></div><div class="ttdeci">b2Fixture * GetFixtureB()</div><div class="ttdoc">Get fixture B in this contact. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:284</div></div>
<div class="ttc" id="classb2_contact_html_ab0597077b23615476327f9b32d9c4979"><div class="ttname"><a href="classb2_contact.html#ab0597077b23615476327f9b32d9c4979">b2Contact::GetManifold</a></div><div class="ttdeci">b2Manifold * GetManifold()</div><div class="ttdef"><b>Definition:</b> b2Contact.h:222</div></div>
<div class="ttc" id="classb2_contact_html_a927125db0b36947a3bb53c4e3eded1cd"><div class="ttname"><a href="classb2_contact.html#a927125db0b36947a3bb53c4e3eded1cd">b2Contact::GetTangentSpeed</a></div><div class="ttdeci">float32 GetTangentSpeed() const</div><div class="ttdoc">Get the desired tangent speed. In meters per second. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:344</div></div>
<div class="ttc" id="classb2_contact_html_a6edf582f8c161d6632854cddefe55a0c"><div class="ttname"><a href="classb2_contact.html#a6edf582f8c161d6632854cddefe55a0c">b2Contact::SetEnabled</a></div><div class="ttdeci">void SetEnabled(bool flag)</div><div class="ttdef"><b>Definition:</b> b2Contact.h:242</div></div>
<div class="ttc" id="structb2_contact_register_html"><div class="ttname"><a href="structb2_contact_register.html">b2ContactRegister</a></div><div class="ttdef"><b>Definition:</b> b2Contact.h:54</div></div>
<div class="ttc" id="classb2_contact_html_a707a3a5a14c2cdd4c6eb7fc648d76037"><div class="ttname"><a href="classb2_contact.html#a707a3a5a14c2cdd4c6eb7fc648d76037">b2Contact::GetFixtureA</a></div><div class="ttdeci">b2Fixture * GetFixtureA()</div><div class="ttdoc">Get fixture A in this contact. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:274</div></div>
<div class="ttc" id="classb2_body_html"><div class="ttname"><a href="classb2_body.html">b2Body</a></div><div class="ttdoc">A rigid body. These are created via b2World::CreateBody. </div><div class="ttdef"><b>Definition:</b> b2Body.h:126</div></div>
<div class="ttc" id="structb2_contact_edge_html_a606dfacb78dc5c51672e4d7449006b8c"><div class="ttname"><a href="structb2_contact_edge.html#a606dfacb78dc5c51672e4d7449006b8c">b2ContactEdge::prev</a></div><div class="ttdeci">b2ContactEdge * prev</div><div class="ttdoc">the previous contact edge in the body&#39;s contact list </div><div class="ttdef"><b>Definition:</b> b2Contact.h:70</div></div>
<div class="ttc" id="structb2_manifold_html"><div class="ttname"><a href="structb2_manifold.html">b2Manifold</a></div><div class="ttdef"><b>Definition:</b> b2Collision.h:93</div></div>
<div class="ttc" id="classb2_contact_html_a7f5645863f6197fa28cc1baafbd11255"><div class="ttname"><a href="classb2_contact.html#a7f5645863f6197fa28cc1baafbd11255">b2Contact::GetWorldManifold</a></div><div class="ttdeci">void GetWorldManifold(b2WorldManifold *worldManifold) const</div><div class="ttdoc">Get the world manifold. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:232</div></div>
<div class="ttc" id="classb2_contact_html_aab201068e7f2cc31c69b1f5c8471d672"><div class="ttname"><a href="classb2_contact.html#aab201068e7f2cc31c69b1f5c8471d672">b2Contact::GetChildIndexB</a></div><div class="ttdeci">int32 GetChildIndexB() const</div><div class="ttdoc">Get the child primitive index for fixture B. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:299</div></div>
<div class="ttc" id="classb2_contact_html_a5e8fbb6bb2966ac84272bb0ea9d2e4c7"><div class="ttname"><a href="classb2_contact.html#a5e8fbb6bb2966ac84272bb0ea9d2e4c7">b2Contact::SetFriction</a></div><div class="ttdeci">void SetFriction(float32 friction)</div><div class="ttdef"><b>Definition:</b> b2Contact.h:309</div></div>
<div class="ttc" id="classb2_contact_html_a32033914a6c7f35b469e8fddbc17c566"><div class="ttname"><a href="classb2_contact.html#a32033914a6c7f35b469e8fddbc17c566">b2Contact::SetTangentSpeed</a></div><div class="ttdeci">void SetTangentSpeed(float32 speed)</div><div class="ttdoc">Set the desired tangent speed for a conveyor belt behavior. In meters per second. ...</div><div class="ttdef"><b>Definition:</b> b2Contact.h:339</div></div>
<div class="ttc" id="classb2_contact_html_ae3c2842e5325b2d4500f8ed1d4de2f72"><div class="ttname"><a href="classb2_contact.html#ae3c2842e5325b2d4500f8ed1d4de2f72">b2Contact::Evaluate</a></div><div class="ttdeci">virtual void Evaluate(b2Manifold *manifold, const b2Transform &xfA, const b2Transform &xfB)=0</div><div class="ttdoc">Evaluate this contact with your own manifold and transforms. </div></div>
<div class="ttc" id="classb2_contact_html_a243501bc5c146e9eb1296162d328aef1"><div class="ttname"><a href="classb2_contact.html#a243501bc5c146e9eb1296162d328aef1">b2Contact::ResetRestitution</a></div><div class="ttdeci">void ResetRestitution()</div><div class="ttdoc">Reset the restitution to the default value. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:334</div></div>
<div class="ttc" id="classb2_contact_html"><div class="ttname"><a href="classb2_contact.html">b2Contact</a></div><div class="ttdef"><b>Definition:</b> b2Contact.h:77</div></div>
<div class="ttc" id="classb2_contact_manager_html"><div class="ttname"><a href="classb2_contact_manager.html">b2ContactManager</a></div><div class="ttdef"><b>Definition:</b> b2ContactManager.h:30</div></div>
<div class="ttc" id="classb2_contact_html_aebfebb1e4b27dc0bd7aa120093e3d650"><div class="ttname"><a href="classb2_contact.html#aebfebb1e4b27dc0bd7aa120093e3d650">b2Contact::GetNext</a></div><div class="ttdeci">b2Contact * GetNext()</div><div class="ttdoc">Get the next contact in the world&#39;s contact list. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:264</div></div>
<div class="ttc" id="classb2_contact_solver_html"><div class="ttname"><a href="classb2_contact_solver.html">b2ContactSolver</a></div><div class="ttdef"><b>Definition:</b> b2ContactSolver.h:69</div></div>
<div class="ttc" id="classb2_contact_html_a9fb6e637026914c8752f89f91122b561"><div class="ttname"><a href="classb2_contact.html#a9fb6e637026914c8752f89f91122b561">b2Contact::GetRestitution</a></div><div class="ttdeci">float32 GetRestitution() const</div><div class="ttdoc">Get the restitution. </div><div class="ttdef"><b>Definition:</b> b2Contact.h:329</div></div>
<div class="ttc" id="structb2_contact_edge_html_a9af32b3cfadf35a927f4dffcf6338a6d"><div class="ttname"><a href="structb2_contact_edge.html#a9af32b3cfadf35a927f4dffcf6338a6d">b2ContactEdge::next</a></div><div class="ttdeci">b2ContactEdge * next</div><div class="ttdoc">the next contact edge in the body&#39;s contact list </div><div class="ttdef"><b>Definition:</b> b2Contact.h:71</div></div>
<div class="ttc" id="classb2_fixture_html"><div class="ttname"><a href="classb2_fixture.html">b2Fixture</a></div><div class="ttdef"><b>Definition:</b> b2Fixture.h:107</div></div>
<div class="ttc" id="classb2_body_html_afb316448e6e555ceb2df23ed216b2f53"><div class="ttname"><a href="classb2_body.html#afb316448e6e555ceb2df23ed216b2f53">b2Body::GetTransform</a></div><div class="ttdeci">const b2Transform & GetTransform() const</div><div class="ttdef"><b>Definition:</b> b2Body.h:474</div></div>
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