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<div class="title">cpDampedSpring.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">/* Copyright (c) 2013 Scott Lembcke and Howling Moon Software</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Permission is hereby granted, free of charge, to any person obtaining a copy</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * of this software and associated documentation files (the "Software"), to deal</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * in the Software without restriction, including without limitation the rights</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * copies of the Software, and to permit persons to whom the Software is</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * furnished to do so, subject to the following conditions:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * The above copyright notice and this permission notice shall be included in</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * all copies or substantial portions of the Software.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * </span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * SOFTWARE.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> CP_EXPORT <a class="code" href="group__basic_types.html#gabc5e752c48f3449ca26ef413ecbd647e" title="Chipmunk's boolean type.">cpBool</a> <a class="code" href="group__cp_damped_spring.html#gad543406dd5555ccca55f3eb254a60e58" title="Check if a constraint is a slide joint.">cpConstraintIsDampedSpring</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"><a class="code" href="group__cp_damped_spring.html#ga8c832b87ce13dbcada285305105486e0"> 29</a></span> <span class="keyword">typedef</span> <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> (*<a class="code" href="group__cp_damped_spring.html#ga8c832b87ce13dbcada285305105486e0" title="Function type used for damped spring force callbacks.">cpDampedSpringForceFunc</a>)(<a class="code" href="structcp_constraint.html">cpConstraint</a> *spring, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> dist);</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> CP_EXPORT <a class="code" href="structcp_damped_spring.html">cpDampedSpring</a>* <a class="code" href="group__cp_damped_spring.html#gacfa5d4a4b4a3d1c9309362375377e89b" title="Allocate a damped spring.">cpDampedSpringAlloc</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> CP_EXPORT <a class="code" href="structcp_damped_spring.html">cpDampedSpring</a>* <a class="code" href="group__cp_damped_spring.html#gadffb634d7a8431566ac2066e10fde751" title="Initialize a damped spring.">cpDampedSpringInit</a>(<a class="code" href="structcp_damped_spring.html">cpDampedSpring</a> *joint, <a class="code" href="structcp_body.html">cpBody</a> *a, <a class="code" href="structcp_body.html">cpBody</a> *b, <a class="code" href="structcp_vect.html">cpVect</a> anchorA, <a class="code" href="structcp_vect.html">cpVect</a> anchorB, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> restLength, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> stiffness, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> damping);</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> CP_EXPORT <a class="code" href="structcp_constraint.html">cpConstraint</a>* <a class="code" href="group__cp_damped_spring.html#ga45dfd1bbe9dded28549c2edfd8c1a059" title="Allocate and initialize a damped spring.">cpDampedSpringNew</a>(<a class="code" href="structcp_body.html">cpBody</a> *a, <a class="code" href="structcp_body.html">cpBody</a> *b, <a class="code" href="structcp_vect.html">cpVect</a> anchorA, <a class="code" href="structcp_vect.html">cpVect</a> anchorB, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> restLength, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> stiffness, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> damping);</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> CP_EXPORT <a class="code" href="structcp_vect.html">cpVect</a> <a class="code" href="group__cp_damped_spring.html#ga6f5deb6e293c3e13130662f234ee475e" title="Get the location of the first anchor relative to the first body.">cpDampedSpringGetAnchorA</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#gaf096f034a491fc3745ed0324fa1c0cf0" title="Set the location of the first anchor relative to the first body.">cpDampedSpringSetAnchorA</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="structcp_vect.html">cpVect</a> anchorA);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> CP_EXPORT <a class="code" href="structcp_vect.html">cpVect</a> <a class="code" href="group__cp_damped_spring.html#gaa6cf571d70ab369a6c4068df420a00f1" title="Get the location of the second anchor relative to the second body.">cpDampedSpringGetAnchorB</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#gac4f4180f4657f77a2698e98ab5149c90" title="Set the location of the second anchor relative to the second body.">cpDampedSpringSetAnchorB</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="structcp_vect.html">cpVect</a> anchorB);</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> CP_EXPORT <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> <a class="code" href="group__cp_damped_spring.html#gaf70dea86936946e0888fb05ff7813b8a" title="Get the rest length of the spring.">cpDampedSpringGetRestLength</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#ga4809ef7ab843a29125daca2153a3960e" title="Set the rest length of the spring.">cpDampedSpringSetRestLength</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> restLength);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> CP_EXPORT <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> <a class="code" href="group__cp_damped_spring.html#ga4f649481e8d9c0a166e9d9dc26fd1cdc" title="Get the stiffness of the spring in force/distance.">cpDampedSpringGetStiffness</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#gafb0a681c3c2ec31001bd55be1080beda" title="Set the stiffness of the spring in force/distance.">cpDampedSpringSetStiffness</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> stiffness);</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> CP_EXPORT <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> <a class="code" href="group__cp_damped_spring.html#gaa97fd3bd3901c0366d12bfc8308213b7" title="Get the damping of the spring.">cpDampedSpringGetDamping</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#ga88177eeb62c14005496c38c9b6d8669d" title="Set the damping of the spring.">cpDampedSpringSetDamping</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="group__basic_types.html#gac1ed65573e035bf892505768c852d8d3" title="Chipmunk's floating point type.">cpFloat</a> damping);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> CP_EXPORT <a class="code" href="group__cp_damped_spring.html#ga8c832b87ce13dbcada285305105486e0" title="Function type used for damped spring force callbacks.">cpDampedSpringForceFunc</a> <a class="code" href="group__cp_damped_spring.html#ga8b377b8e58179c638460d735b568930a" title="Get the damping of the spring.">cpDampedSpringGetSpringForceFunc</a>(<span class="keyword">const</span> <a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> CP_EXPORT <span class="keywordtype">void</span> <a class="code" href="group__cp_damped_spring.html#ga5a663e7d5e0c88f26719af1d543c1db8" title="Set the damping of the spring.">cpDampedSpringSetSpringForceFunc</a>(<a class="code" href="structcp_constraint.html">cpConstraint</a> *constraint, <a class="code" href="group__cp_damped_spring.html#ga8c832b87ce13dbcada285305105486e0" title="Function type used for damped spring force callbacks.">cpDampedSpringForceFunc</a> springForceFunc);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
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