<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.14"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>Box2D: b2Joint.h Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td id="projectlogo"><img alt="Logo" src="icon.gif"/></td>
<td id="projectalign" style="padding-left: 0.5em;">
<div id="projectname">Box2D
 <span id="projectnumber">2.3.0</span>
</div>
<div id="projectbrief">A 2D Physics Engine for Games</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.14 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
var searchBox = new SearchBox("searchBox", "search",false,'Search');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */</script>
<div id="main-nav"></div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0"
name="MSearchResults" id="MSearchResults">
</iframe>
</div>
<div id="nav-path" class="navpath">
<ul>
<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_b4ce54b79b9fedd1c216c802993ffbe1.html">Joints</a></li> </ul>
</div>
</div><!-- top -->
<div class="header">
<div class="headertitle">
<div class="title">b2Joint.h</div> </div>
</div><!--header-->
<div class="contents">
<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) 2006-2007 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_JOINT_H</span></div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#define B2_JOINT_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> </div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">class </span><a class="code" href="classb2_body.html">b2Body</a>;</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">class </span><a class="code" href="classb2_joint.html">b2Joint</a>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">struct </span><a class="code" href="structb2_solver_data.html">b2SolverData</a>;</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">class </span><a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>;</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">enum</span> b2JointType</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> {</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  e_unknownJoint,</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  e_revoluteJoint,</div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  e_prismaticJoint,</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  e_distanceJoint,</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  e_pulleyJoint,</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  e_mouseJoint,</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  e_gearJoint,</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  e_wheelJoint,</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  e_weldJoint,</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  e_frictionJoint,</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  e_ropeJoint,</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  e_motorJoint</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> };</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">enum</span> b2LimitState</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  e_inactiveLimit,</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  e_atLowerLimit,</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  e_atUpperLimit,</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  e_equalLimits</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> };</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structb2_jacobian.html"> 53</a></span> <span class="keyword">struct </span><a class="code" href="structb2_jacobian.html">b2Jacobian</a></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <a class="code" href="structb2_vec2.html">b2Vec2</a> linear;</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  float32 angularA;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  float32 angularB;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> };</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="structb2_joint_edge.html"> 65</a></span> <span class="keyword">struct </span><a class="code" href="structb2_joint_edge.html">b2JointEdge</a></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> {</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="structb2_joint_edge.html#a64aef21fb91211871de8796baecccb95"> 67</a></span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="structb2_joint_edge.html#a64aef21fb91211871de8796baecccb95">other</a>; </div><div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="structb2_joint_edge.html#ab5bac5d495af1280c50271f56a221503"> 68</a></span>  <a class="code" href="classb2_joint.html">b2Joint</a>* <a class="code" href="structb2_joint_edge.html#ab5bac5d495af1280c50271f56a221503">joint</a>; </div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structb2_joint_edge.html#acc3621e38d9664db2805e0fc29d71335"> 69</a></span>  <a class="code" href="structb2_joint_edge.html">b2JointEdge</a>* <a class="code" href="structb2_joint_edge.html#acc3621e38d9664db2805e0fc29d71335">prev</a>; </div><div class="line"><a name="l00070"></a><span class="lineno"><a class="line" href="structb2_joint_edge.html#a3d17286bc697bb620ee151e4cd07438c"> 70</a></span>  <a class="code" href="structb2_joint_edge.html">b2JointEdge</a>* <a class="code" href="structb2_joint_edge.html#a3d17286bc697bb620ee151e4cd07438c">next</a>; </div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> };</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="structb2_joint_def.html"> 74</a></span> <span class="keyword">struct </span><a class="code" href="structb2_joint_def.html">b2JointDef</a></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="structb2_joint_def.html">b2JointDef</a>()</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <a class="code" href="structb2_joint_def.html#a470f2879b24adb05facbd49f338856fb">type</a> = e_unknownJoint;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <a class="code" href="structb2_joint_def.html#a07eb150daaaa52fc09c3bcf402b295fe">userData</a> = NULL;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <a class="code" href="structb2_joint_def.html#a8cd54c93da396be75a9788f2c6897f05">bodyA</a> = NULL;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="structb2_joint_def.html#aa4f4dee2fbcd12187b19506b60e68e3d">bodyB</a> = NULL;</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <a class="code" href="structb2_joint_def.html#aef099a1f89b64e230173b6016848ea9b">collideConnected</a> = <span class="keyword">false</span>;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="structb2_joint_def.html#a470f2879b24adb05facbd49f338856fb"> 86</a></span>  b2JointType <a class="code" href="structb2_joint_def.html#a470f2879b24adb05facbd49f338856fb">type</a>;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="structb2_joint_def.html#a07eb150daaaa52fc09c3bcf402b295fe"> 89</a></span>  <span class="keywordtype">void</span>* <a class="code" href="structb2_joint_def.html#a07eb150daaaa52fc09c3bcf402b295fe">userData</a>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="structb2_joint_def.html#a8cd54c93da396be75a9788f2c6897f05"> 92</a></span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="structb2_joint_def.html#a8cd54c93da396be75a9788f2c6897f05">bodyA</a>;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div><div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="structb2_joint_def.html#aa4f4dee2fbcd12187b19506b60e68e3d"> 95</a></span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="structb2_joint_def.html#aa4f4dee2fbcd12187b19506b60e68e3d">bodyB</a>;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="structb2_joint_def.html#aef099a1f89b64e230173b6016848ea9b"> 98</a></span>  <span class="keywordtype">bool</span> <a class="code" href="structb2_joint_def.html#aef099a1f89b64e230173b6016848ea9b">collideConnected</a>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> };</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div><div class="line"><a name="l00103"></a><span class="lineno"><a class="line" href="classb2_joint.html"> 103</a></span> <span class="keyword">class </span><a class="code" href="classb2_joint.html">b2Joint</a></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> {</div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">public</span>:</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  b2JointType <a class="code" href="classb2_joint.html#ac56eef62fe1ac7c9e5e21a79fb035255">GetType</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="classb2_joint.html#a2ed5eca3dbdce48665c14452b280613f">GetBodyA</a>();</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="classb2_joint.html#a700b3d4c87f34f456151b9598e4641a0">GetBodyB</a>();</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">virtual</span> <a class="code" href="structb2_vec2.html">b2Vec2</a> <a class="code" href="classb2_joint.html#abe46ca3aad5db73909a9b5a7b2117447">GetAnchorA</a>() <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">virtual</span> <a class="code" href="structb2_vec2.html">b2Vec2</a> <a class="code" href="classb2_joint.html#a88e947c65d4ea26fe539f02a8cb7f7a9">GetAnchorB</a>() <span class="keyword">const</span> = 0;</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>  <span class="keyword">virtual</span> <a class="code" href="structb2_vec2.html">b2Vec2</a> <a class="code" href="classb2_joint.html#a7e0eddefb9b69ad050b8ef6425838a74">GetReactionForce</a>(float32 inv_dt) <span class="keyword">const</span> = 0;</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="keyword">virtual</span> float32 <a class="code" href="classb2_joint.html#ae355e441c2aa842777dc04e24f15ced0">GetReactionTorque</a>(float32 inv_dt) <span class="keyword">const</span> = 0;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="classb2_joint.html">b2Joint</a>* <a class="code" href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d">GetNext</a>();</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">const</span> <a class="code" href="classb2_joint.html">b2Joint</a>* <a class="code" href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d">GetNext</a>() <span class="keyword">const</span>;</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>  <span class="keywordtype">void</span>* <a class="code" href="classb2_joint.html#a798c593c7a4958d408bca10f3b3788f9">GetUserData</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_joint.html#a492f2d02496437572aaec6013ebdc1c8">SetUserData</a>(<span class="keywordtype">void</span>* data);</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">bool</span> <a class="code" href="classb2_joint.html#ae9cfbd158216c9855c2f018ff3c9c922">IsActive</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordtype">bool</span> <a class="code" href="classb2_joint.html#a48492903df96c8a7b8cad8ed826f8cb0">GetCollideConnected</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00147"></a><span class="lineno"><a class="line" href="classb2_joint.html#abd35e7316017ad9a40d5dbf9b5ba3f36"> 147</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classb2_joint.html#abd35e7316017ad9a40d5dbf9b5ba3f36">Dump</a>() { <a class="code" href="b2_settings_8h.html#a9f10095d05c74eebfe535931c9061ab2">b2Log</a>(<span class="stringliteral">"// Dump is not supported for this joint type.\n"</span>); }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00150"></a><span class="lineno"><a class="line" href="classb2_joint.html#a7804f649e993dc0fd9ae47fde5601f90"> 150</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classb2_joint.html#a7804f649e993dc0fd9ae47fde5601f90">ShiftOrigin</a>(<span class="keyword">const</span> <a class="code" href="structb2_vec2.html">b2Vec2</a>& newOrigin) { B2_NOT_USED(newOrigin); }</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> </div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">protected</span>:</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</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="l00154"></a><span class="lineno"> 154</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="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_island.html">b2Island</a>;</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keyword">friend</span> <span class="keyword">class </span><a class="code" href="classb2_gear_joint.html">b2GearJoint</a>;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keyword">static</span> <a class="code" href="classb2_joint.html">b2Joint</a>* Create(<span class="keyword">const</span> <a class="code" href="structb2_joint_def.html">b2JointDef</a>* def, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> Destroy(<a class="code" href="classb2_joint.html">b2Joint</a>* joint, <a class="code" href="classb2_block_allocator.html">b2BlockAllocator</a>* allocator);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span> </div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a class="code" href="classb2_joint.html">b2Joint</a>(<span class="keyword">const</span> <a class="code" href="structb2_joint_def.html">b2JointDef</a>* def);</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="keyword">virtual</span> ~<a class="code" href="classb2_joint.html">b2Joint</a>() {}</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> InitVelocityConstraints(<span class="keyword">const</span> <a class="code" href="structb2_solver_data.html">b2SolverData</a>& data) = 0;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> SolveVelocityConstraints(<span class="keyword">const</span> <a class="code" href="structb2_solver_data.html">b2SolverData</a>& data) = 0;</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="comment">// This returns true if the position errors are within tolerance.</span></div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> SolvePositionConstraints(<span class="keyword">const</span> <a class="code" href="structb2_solver_data.html">b2SolverData</a>& data) = 0;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  b2JointType m_type;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="classb2_joint.html">b2Joint</a>* m_prev;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="classb2_joint.html">b2Joint</a>* m_next;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <a class="code" href="structb2_joint_edge.html">b2JointEdge</a> m_edgeA;</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="structb2_joint_edge.html">b2JointEdge</a> m_edgeB;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <a class="code" href="classb2_body.html">b2Body</a>* m_bodyA;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <a class="code" href="classb2_body.html">b2Body</a>* m_bodyB;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  int32 m_index;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span> </div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">bool</span> m_islandFlag;</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordtype">bool</span> m_collideConnected;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordtype">void</span>* m_userData;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> };</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="classb2_joint.html#ac56eef62fe1ac7c9e5e21a79fb035255"> 186</a></span> <span class="keyword">inline</span> b2JointType <a class="code" href="classb2_joint.html#ac56eef62fe1ac7c9e5e21a79fb035255">b2Joint::GetType</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword"></span>{</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> m_type;</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> </div><div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="classb2_joint.html#a2ed5eca3dbdce48665c14452b280613f"> 191</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="classb2_joint.html#a2ed5eca3dbdce48665c14452b280613f">b2Joint::GetBodyA</a>()</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> {</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">return</span> m_bodyA;</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> </div><div class="line"><a name="l00196"></a><span class="lineno"><a class="line" href="classb2_joint.html#a700b3d4c87f34f456151b9598e4641a0"> 196</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_body.html">b2Body</a>* <a class="code" href="classb2_joint.html#a700b3d4c87f34f456151b9598e4641a0">b2Joint::GetBodyB</a>()</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span> {</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keywordflow">return</span> m_bodyB;</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span> }</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div><div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d"> 201</a></span> <span class="keyword">inline</span> <a class="code" href="classb2_joint.html">b2Joint</a>* <a class="code" href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d">b2Joint::GetNext</a>()</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> {</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> m_next;</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> </div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="classb2_joint.html">b2Joint</a>* <a class="code" href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d">b2Joint::GetNext</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="keyword"></span>{</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="keywordflow">return</span> m_next;</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span> }</div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span> </div><div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="classb2_joint.html#a798c593c7a4958d408bca10f3b3788f9"> 211</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span>* <a class="code" href="classb2_joint.html#a798c593c7a4958d408bca10f3b3788f9">b2Joint::GetUserData</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> <span class="keyword"></span>{</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> m_userData;</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> }</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"><a class="line" href="classb2_joint.html#a492f2d02496437572aaec6013ebdc1c8"> 216</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classb2_joint.html#a492f2d02496437572aaec6013ebdc1c8">b2Joint::SetUserData</a>(<span class="keywordtype">void</span>* data)</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> {</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  m_userData = data;</div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span> }</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div><div class="line"><a name="l00221"></a><span class="lineno"><a class="line" href="classb2_joint.html#a48492903df96c8a7b8cad8ed826f8cb0"> 221</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classb2_joint.html#a48492903df96c8a7b8cad8ed826f8cb0">b2Joint::GetCollideConnected</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keyword"></span>{</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">return</span> m_collideConnected;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> }</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> <span class="preprocessor">#endif</span></div><div class="ttc" id="structb2_joint_edge_html_ab5bac5d495af1280c50271f56a221503"><div class="ttname"><a href="structb2_joint_edge.html#ab5bac5d495af1280c50271f56a221503">b2JointEdge::joint</a></div><div class="ttdeci">b2Joint * joint</div><div class="ttdoc">the joint </div><div class="ttdef"><b>Definition:</b> b2Joint.h:68</div></div>
<div class="ttc" id="structb2_joint_def_html_a8cd54c93da396be75a9788f2c6897f05"><div class="ttname"><a href="structb2_joint_def.html#a8cd54c93da396be75a9788f2c6897f05">b2JointDef::bodyA</a></div><div class="ttdeci">b2Body * bodyA</div><div class="ttdoc">The first attached body. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:92</div></div>
<div class="ttc" id="classb2_joint_html_a492f2d02496437572aaec6013ebdc1c8"><div class="ttname"><a href="classb2_joint.html#a492f2d02496437572aaec6013ebdc1c8">b2Joint::SetUserData</a></div><div class="ttdeci">void SetUserData(void *data)</div><div class="ttdoc">Set the user data pointer. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:216</div></div>
<div class="ttc" id="b2_settings_8h_html_a9f10095d05c74eebfe535931c9061ab2"><div class="ttname"><a href="b2_settings_8h.html#a9f10095d05c74eebfe535931c9061ab2">b2Log</a></div><div class="ttdeci">void b2Log(const char *string,...)</div><div class="ttdoc">Logging function. </div><div class="ttdef"><b>Definition:</b> b2Settings.cpp:38</div></div>
<div class="ttc" id="structb2_joint_edge_html_a64aef21fb91211871de8796baecccb95"><div class="ttname"><a href="structb2_joint_edge.html#a64aef21fb91211871de8796baecccb95">b2JointEdge::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> b2Joint.h:67</div></div>
<div class="ttc" id="classb2_joint_html_a7e0eddefb9b69ad050b8ef6425838a74"><div class="ttname"><a href="classb2_joint.html#a7e0eddefb9b69ad050b8ef6425838a74">b2Joint::GetReactionForce</a></div><div class="ttdeci">virtual b2Vec2 GetReactionForce(float32 inv_dt) const =0</div><div class="ttdoc">Get the reaction force on bodyB at the joint anchor in Newtons. </div></div>
<div class="ttc" id="classb2_joint_html_a2ed5eca3dbdce48665c14452b280613f"><div class="ttname"><a href="classb2_joint.html#a2ed5eca3dbdce48665c14452b280613f">b2Joint::GetBodyA</a></div><div class="ttdeci">b2Body * GetBodyA()</div><div class="ttdoc">Get the first body attached to this joint. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:191</div></div>
<div class="ttc" id="structb2_joint_def_html_aa4f4dee2fbcd12187b19506b60e68e3d"><div class="ttname"><a href="structb2_joint_def.html#aa4f4dee2fbcd12187b19506b60e68e3d">b2JointDef::bodyB</a></div><div class="ttdeci">b2Body * bodyB</div><div class="ttdoc">The second attached body. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:95</div></div>
<div class="ttc" id="classb2_joint_html_ae355e441c2aa842777dc04e24f15ced0"><div class="ttname"><a href="classb2_joint.html#ae355e441c2aa842777dc04e24f15ced0">b2Joint::GetReactionTorque</a></div><div class="ttdeci">virtual float32 GetReactionTorque(float32 inv_dt) const =0</div><div class="ttdoc">Get the reaction torque on bodyB in N*m. </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_joint_def_html_a07eb150daaaa52fc09c3bcf402b295fe"><div class="ttname"><a href="structb2_joint_def.html#a07eb150daaaa52fc09c3bcf402b295fe">b2JointDef::userData</a></div><div class="ttdeci">void * userData</div><div class="ttdoc">Use this to attach application specific data to your joints. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:89</div></div>
<div class="ttc" id="classb2_joint_html_a7804f649e993dc0fd9ae47fde5601f90"><div class="ttname"><a href="classb2_joint.html#a7804f649e993dc0fd9ae47fde5601f90">b2Joint::ShiftOrigin</a></div><div class="ttdeci">virtual void ShiftOrigin(const b2Vec2 &newOrigin)</div><div class="ttdoc">Shift the origin for any points stored in world coordinates. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:150</div></div>
<div class="ttc" id="classb2_joint_html_ae9cfbd158216c9855c2f018ff3c9c922"><div class="ttname"><a href="classb2_joint.html#ae9cfbd158216c9855c2f018ff3c9c922">b2Joint::IsActive</a></div><div class="ttdeci">bool IsActive() const</div><div class="ttdoc">Short-cut function to determine if either body is inactive. </div><div class="ttdef"><b>Definition:</b> b2Joint.cpp:208</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_joint_html"><div class="ttname"><a href="classb2_joint.html">b2Joint</a></div><div class="ttdef"><b>Definition:</b> b2Joint.h:103</div></div>
<div class="ttc" id="structb2_jacobian_html"><div class="ttname"><a href="structb2_jacobian.html">b2Jacobian</a></div><div class="ttdef"><b>Definition:</b> b2Joint.h:53</div></div>
<div class="ttc" id="classb2_joint_html_abe46ca3aad5db73909a9b5a7b2117447"><div class="ttname"><a href="classb2_joint.html#abe46ca3aad5db73909a9b5a7b2117447">b2Joint::GetAnchorA</a></div><div class="ttdeci">virtual b2Vec2 GetAnchorA() const =0</div><div class="ttdoc">Get the anchor point on bodyA in world coordinates. </div></div>
<div class="ttc" id="classb2_joint_html_a88e947c65d4ea26fe539f02a8cb7f7a9"><div class="ttname"><a href="classb2_joint.html#a88e947c65d4ea26fe539f02a8cb7f7a9">b2Joint::GetAnchorB</a></div><div class="ttdeci">virtual b2Vec2 GetAnchorB() const =0</div><div class="ttdoc">Get the anchor point on bodyB in world coordinates. </div></div>
<div class="ttc" id="classb2_joint_html_ac56eef62fe1ac7c9e5e21a79fb035255"><div class="ttname"><a href="classb2_joint.html#ac56eef62fe1ac7c9e5e21a79fb035255">b2Joint::GetType</a></div><div class="ttdeci">b2JointType GetType() const</div><div class="ttdoc">Get the type of the concrete joint. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:186</div></div>
<div class="ttc" id="classb2_gear_joint_html"><div class="ttname"><a href="classb2_gear_joint.html">b2GearJoint</a></div><div class="ttdef"><b>Definition:</b> b2GearJoint.h:56</div></div>
<div class="ttc" id="structb2_joint_def_html_a470f2879b24adb05facbd49f338856fb"><div class="ttname"><a href="structb2_joint_def.html#a470f2879b24adb05facbd49f338856fb">b2JointDef::type</a></div><div class="ttdeci">b2JointType type</div><div class="ttdoc">The joint type is set automatically for concrete joint types. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:86</div></div>
<div class="ttc" id="structb2_joint_def_html_aef099a1f89b64e230173b6016848ea9b"><div class="ttname"><a href="structb2_joint_def.html#aef099a1f89b64e230173b6016848ea9b">b2JointDef::collideConnected</a></div><div class="ttdeci">bool collideConnected</div><div class="ttdoc">Set this flag to true if the attached bodies should collide. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:98</div></div>
<div class="ttc" id="structb2_solver_data_html"><div class="ttname"><a href="structb2_solver_data.html">b2SolverData</a></div><div class="ttdoc">Solver Data. </div><div class="ttdef"><b>Definition:</b> b2TimeStep.h:63</div></div>
<div class="ttc" id="classb2_joint_html_a48492903df96c8a7b8cad8ed826f8cb0"><div class="ttname"><a href="classb2_joint.html#a48492903df96c8a7b8cad8ed826f8cb0">b2Joint::GetCollideConnected</a></div><div class="ttdeci">bool GetCollideConnected() const</div><div class="ttdef"><b>Definition:</b> b2Joint.h:221</div></div>
<div class="ttc" id="classb2_joint_html_a798c593c7a4958d408bca10f3b3788f9"><div class="ttname"><a href="classb2_joint.html#a798c593c7a4958d408bca10f3b3788f9">b2Joint::GetUserData</a></div><div class="ttdeci">void * GetUserData() const</div><div class="ttdoc">Get the user data pointer. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:211</div></div>
<div class="ttc" id="structb2_joint_def_html"><div class="ttname"><a href="structb2_joint_def.html">b2JointDef</a></div><div class="ttdoc">Joint definitions are used to construct joints. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:74</div></div>
<div class="ttc" id="structb2_joint_edge_html"><div class="ttname"><a href="structb2_joint_edge.html">b2JointEdge</a></div><div class="ttdef"><b>Definition:</b> b2Joint.h:65</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="classb2_island_html"><div class="ttname"><a href="classb2_island.html">b2Island</a></div><div class="ttdoc">This is an internal class. </div><div class="ttdef"><b>Definition:</b> b2Island.h:34</div></div>
<div class="ttc" id="classb2_joint_html_a700b3d4c87f34f456151b9598e4641a0"><div class="ttname"><a href="classb2_joint.html#a700b3d4c87f34f456151b9598e4641a0">b2Joint::GetBodyB</a></div><div class="ttdeci">b2Body * GetBodyB()</div><div class="ttdoc">Get the second body attached to this joint. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:196</div></div>
<div class="ttc" id="classb2_joint_html_abd35e7316017ad9a40d5dbf9b5ba3f36"><div class="ttname"><a href="classb2_joint.html#abd35e7316017ad9a40d5dbf9b5ba3f36">b2Joint::Dump</a></div><div class="ttdeci">virtual void Dump()</div><div class="ttdoc">Dump this joint to the log file. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:147</div></div>
<div class="ttc" id="structb2_joint_edge_html_acc3621e38d9664db2805e0fc29d71335"><div class="ttname"><a href="structb2_joint_edge.html#acc3621e38d9664db2805e0fc29d71335">b2JointEdge::prev</a></div><div class="ttdeci">b2JointEdge * prev</div><div class="ttdoc">the previous joint edge in the body&#39;s joint list </div><div class="ttdef"><b>Definition:</b> b2Joint.h:69</div></div>
<div class="ttc" id="structb2_vec2_html"><div class="ttname"><a href="structb2_vec2.html">b2Vec2</a></div><div class="ttdoc">A 2D column vector. </div><div class="ttdef"><b>Definition:</b> b2Math.h:53</div></div>
<div class="ttc" id="structb2_joint_edge_html_a3d17286bc697bb620ee151e4cd07438c"><div class="ttname"><a href="structb2_joint_edge.html#a3d17286bc697bb620ee151e4cd07438c">b2JointEdge::next</a></div><div class="ttdeci">b2JointEdge * next</div><div class="ttdoc">the next joint edge in the body&#39;s joint list </div><div class="ttdef"><b>Definition:</b> b2Joint.h:70</div></div>
<div class="ttc" id="classb2_joint_html_a1a0e2137b631010750c728cb4e276e5d"><div class="ttname"><a href="classb2_joint.html#a1a0e2137b631010750c728cb4e276e5d">b2Joint::GetNext</a></div><div class="ttdeci">b2Joint * GetNext()</div><div class="ttdoc">Get the next joint the world joint list. </div><div class="ttdef"><b>Definition:</b> b2Joint.h:201</div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated on Fri Sep 21 2018 22:35:06 for Box2D by  <a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.14
</small></address>
</body>
</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-release
>
by-pkgid
>
deebb45492ddfb87b1d0b33e0be8a2b3
>
files
>
93
