cpp
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JoltPhysics
зеркало из https://github.com/jrouwe/JoltPhysics.git


			
				
					
						
						
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   <div id="projectbrief">A multi core friendly Game Physics Engine</div>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p>Keeps track of connected bodies and builds islands for multithreaded velocity/position update.  
 <a href="#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="_island_builder_8h_source.html">IslandBuilder.h</a>&gt;</code></p>
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Inheritance diagram for IslandBuilder:</div>
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  <img src="class_island_builder.png" usemap="#IslandBuilder_map" alt=""/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a88fd7d9e6a6982dc394fd7d647df41cb" id="r_a88fd7d9e6a6982dc394fd7d647df41cb"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a88fd7d9e6a6982dc394fd7d647df41cb">~IslandBuilder</a> ()</td></tr>
<tr class="memdesc:a88fd7d9e6a6982dc394fd7d647df41cb"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor.  <br /></td></tr>
<tr class="separator:a88fd7d9e6a6982dc394fd7d647df41cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a060b323839a30c3096ec581b4684290d" id="r_a060b323839a30c3096ec581b4684290d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a060b323839a30c3096ec581b4684290d">Init</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inMaxActiveBodies)</td></tr>
<tr class="memdesc:a060b323839a30c3096ec581b4684290d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Initialize the island builder with the maximum amount of bodies that could be active.  <br /></td></tr>
<tr class="separator:a060b323839a30c3096ec581b4684290d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaf615d7e17f6b82156eef5932a4bc9d6" id="r_aaf615d7e17f6b82156eef5932a4bc9d6"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aaf615d7e17f6b82156eef5932a4bc9d6">PrepareContactConstraints</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inMaxContactConstraints, <a class="el" href="class_temp_allocator.html">TempAllocator</a> *inTempAllocator)</td></tr>
<tr class="memdesc:aaf615d7e17f6b82156eef5932a4bc9d6"><td class="mdescLeft">&#160;</td><td class="mdescRight">Prepare for simulation step by allocating space for the contact constraints.  <br /></td></tr>
<tr class="separator:aaf615d7e17f6b82156eef5932a4bc9d6"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ac70b90cc284ac3999e18b865724392da" id="r_ac70b90cc284ac3999e18b865724392da"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ac70b90cc284ac3999e18b865724392da">PrepareNonContactConstraints</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inNumConstraints, <a class="el" href="class_temp_allocator.html">TempAllocator</a> *inTempAllocator)</td></tr>
<tr class="memdesc:ac70b90cc284ac3999e18b865724392da"><td class="mdescLeft">&#160;</td><td class="mdescRight">Prepare for simulation step by allocating space for the non-contact constraints.  <br /></td></tr>
<tr class="separator:ac70b90cc284ac3999e18b865724392da"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad3c6e43cef523989bab88ed8cc11575f" id="r_ad3c6e43cef523989bab88ed8cc11575f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ad3c6e43cef523989bab88ed8cc11575f">LinkBodies</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inFirst, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inSecond)</td></tr>
<tr class="memdesc:ad3c6e43cef523989bab88ed8cc11575f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Link two bodies by their index in the BodyManager::mActiveBodies list to form islands.  <br /></td></tr>
<tr class="separator:ad3c6e43cef523989bab88ed8cc11575f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a323b5204fe8c9fdb7a15791469780259" id="r_a323b5204fe8c9fdb7a15791469780259"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a323b5204fe8c9fdb7a15791469780259">LinkConstraint</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inConstraintIndex, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inFirst, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inSecond)</td></tr>
<tr class="memdesc:a323b5204fe8c9fdb7a15791469780259"><td class="mdescLeft">&#160;</td><td class="mdescRight">Link a constraint to a body by their index in the BodyManager::mActiveBodies.  <br /></td></tr>
<tr class="separator:a323b5204fe8c9fdb7a15791469780259"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a32b2a16b2eca88110ad2604e2b129132" id="r_a32b2a16b2eca88110ad2604e2b129132"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a32b2a16b2eca88110ad2604e2b129132">LinkContact</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inContactIndex, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inFirst, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inSecond)</td></tr>
<tr class="memdesc:a32b2a16b2eca88110ad2604e2b129132"><td class="mdescLeft">&#160;</td><td class="mdescRight">Link a contact to a body by their index in the BodyManager::mActiveBodies.  <br /></td></tr>
<tr class="separator:a32b2a16b2eca88110ad2604e2b129132"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af8e0ac69b3e021ab24317116ded1c622" id="r_af8e0ac69b3e021ab24317116ded1c622"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#af8e0ac69b3e021ab24317116ded1c622">Finalize</a> (const <a class="el" href="class_body_i_d.html">BodyID</a> *inActiveBodies, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inNumActiveBodies, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inNumContacts, <a class="el" href="class_temp_allocator.html">TempAllocator</a> *inTempAllocator)</td></tr>
<tr class="memdesc:af8e0ac69b3e021ab24317116ded1c622"><td class="mdescLeft">&#160;</td><td class="mdescRight">Finalize the islands after all bodies have been Link()-ed.  <br /></td></tr>
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<tr class="memitem:a6f0d6d67425a9d02cf561a06784431f4" id="r_a6f0d6d67425a9d02cf561a06784431f4"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a6f0d6d67425a9d02cf561a06784431f4">GetNumIslands</a> () const</td></tr>
<tr class="memdesc:a6f0d6d67425a9d02cf561a06784431f4"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the amount of islands formed.  <br /></td></tr>
<tr class="separator:a6f0d6d67425a9d02cf561a06784431f4"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ace0201e247b5fcb9639bba23b385e718" id="r_ace0201e247b5fcb9639bba23b385e718"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ace0201e247b5fcb9639bba23b385e718">GetBodiesInIsland</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inIslandIndex, <a class="el" href="class_body_i_d.html">BodyID</a> *&amp;outBodiesBegin, <a class="el" href="class_body_i_d.html">BodyID</a> *&amp;outBodiesEnd) const</td></tr>
<tr class="memdesc:ace0201e247b5fcb9639bba23b385e718"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get iterator for a particular island, return false if there are no constraints.  <br /></td></tr>
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<tr class="memitem:abb0ec0d343289ee4294fa3abbde16a82" id="r_abb0ec0d343289ee4294fa3abbde16a82"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#abb0ec0d343289ee4294fa3abbde16a82">GetConstraintsInIsland</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inIslandIndex, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> *&amp;outConstraintsBegin, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> *&amp;outConstraintsEnd) const</td></tr>
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<tr class="memitem:a39454ff17c3dc0d7b133c79ac2d0d7e0" id="r_a39454ff17c3dc0d7b133c79ac2d0d7e0"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a39454ff17c3dc0d7b133c79ac2d0d7e0">GetContactsInIsland</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inIslandIndex, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> *&amp;outContactsBegin, <a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> *&amp;outContactsEnd) const</td></tr>
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<tr class="memitem:a576814bc0405702b74174635e0b44d6d" id="r_a576814bc0405702b74174635e0b44d6d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a576814bc0405702b74174635e0b44d6d">SetNumPositionSteps</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inIslandIndex, <a class="el" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a> inNumPositionSteps)</td></tr>
<tr class="memdesc:a576814bc0405702b74174635e0b44d6d"><td class="mdescLeft">&#160;</td><td class="mdescRight">The number of position iterations for each island.  <br /></td></tr>
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<tr class="memitem:a213561deca43cb4c9bde6560bed5a0e1" id="r_a213561deca43cb4c9bde6560bed5a0e1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="_core_8h.html#a69aa29b598b851b0640aa225a9e5d61d">uint</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a213561deca43cb4c9bde6560bed5a0e1">GetNumPositionSteps</a> (<a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> inIslandIndex) const</td></tr>
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<tr class="memitem:a3a23a4981c11d55933cc2533504eb38a" id="r_a3a23a4981c11d55933cc2533504eb38a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a3a23a4981c11d55933cc2533504eb38a">ResetIslands</a> (<a class="el" href="class_temp_allocator.html">TempAllocator</a> *inTempAllocator)</td></tr>
<tr class="memdesc:a3a23a4981c11d55933cc2533504eb38a"><td class="mdescLeft">&#160;</td><td class="mdescRight">After you're done calling the three functions above, call this function to free associated data.  <br /></td></tr>
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<tr class="inherit_header pub_methods_class_non_copyable"><td colspan="2" onclick="javascript:dynsection.toggleInherit('pub_methods_class_non_copyable')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="class_non_copyable.html">NonCopyable</a></td></tr>
<tr class="memitem:a809b6e4ade7ae32f6d248f2a3b783d45 inherit pub_methods_class_non_copyable" id="r_a809b6e4ade7ae32f6d248f2a3b783d45"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_non_copyable.html#a809b6e4ade7ae32f6d248f2a3b783d45">NonCopyable</a> ()=default</td></tr>
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<tr class="memitem:a501d34ffcc34b30de6d541887a901057 inherit pub_methods_class_non_copyable" id="r_a501d34ffcc34b30de6d541887a901057"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_non_copyable.html#a501d34ffcc34b30de6d541887a901057">NonCopyable</a> (const <a class="el" href="class_non_copyable.html">NonCopyable</a> &amp;)=delete</td></tr>
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<tr class="memitem:aaf9b12dcaae80c9d304df7a941d4e21f inherit pub_methods_class_non_copyable" id="r_aaf9b12dcaae80c9d304df7a941d4e21f"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_non_copyable.html#aaf9b12dcaae80c9d304df7a941d4e21f">operator=</a> (const <a class="el" href="class_non_copyable.html">NonCopyable</a> &amp;)=delete</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Keeps track of connected bodies and builds islands for multithreaded velocity/position update. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a88fd7d9e6a6982dc394fd7d647df41cb">&#9670;&#160;</a></span>~IslandBuilder()</h2>

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<p>Destructor. </p>

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<h2 class="groupheader">Member Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#af8e0ac69b3e021ab24317116ded1c622">&#9670;&#160;</a></span>Finalize()</h2>

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<p>Finalize the islands after all bodies have been Link()-ed. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ace0201e247b5fcb9639bba23b385e718">&#9670;&#160;</a></span>GetBodiesInIsland()</h2>

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<p>Get iterator for a particular island, return false if there are no constraints. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#abb0ec0d343289ee4294fa3abbde16a82">&#9670;&#160;</a></span>GetConstraintsInIsland()</h2>

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          <td class="paramtype"><a class="el" href="_core_8h.html#a8f95e75e58492e87412191fabadd8ca8">uint32</a> *&amp;</td>          <td class="paramname"><span class="paramname"><em>outConstraintsBegin</em></span>, </td>
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<h2 class="memtitle"><span class="permalink"><a href="#a39454ff17c3dc0d7b133c79ac2d0d7e0">&#9670;&#160;</a></span>GetContactsInIsland()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a6f0d6d67425a9d02cf561a06784431f4">&#9670;&#160;</a></span>GetNumIslands()</h2>

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<p>Get the amount of islands formed. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a213561deca43cb4c9bde6560bed5a0e1">&#9670;&#160;</a></span>GetNumPositionSteps()</h2>

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<h2 class="memtitle"><span class="permalink"><a href="#a060b323839a30c3096ec581b4684290d">&#9670;&#160;</a></span>Init()</h2>

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<p>Initialize the island builder with the maximum amount of bodies that could be active. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ad3c6e43cef523989bab88ed8cc11575f">&#9670;&#160;</a></span>LinkBodies()</h2>

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<p>Link two bodies by their index in the BodyManager::mActiveBodies list to form islands. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a323b5204fe8c9fdb7a15791469780259">&#9670;&#160;</a></span>LinkConstraint()</h2>

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<p>Link a constraint to a body by their index in the BodyManager::mActiveBodies. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a32b2a16b2eca88110ad2604e2b129132">&#9670;&#160;</a></span>LinkContact()</h2>

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<p>Link a contact to a body by their index in the BodyManager::mActiveBodies. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#aaf615d7e17f6b82156eef5932a4bc9d6">&#9670;&#160;</a></span>PrepareContactConstraints()</h2>

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          <td class="paramtype"><a class="el" href="class_temp_allocator.html">TempAllocator</a> *</td>          <td class="paramname"><span class="paramname"><em>inTempAllocator</em></span>&#160;)</td>
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<p>Prepare for simulation step by allocating space for the contact constraints. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ac70b90cc284ac3999e18b865724392da">&#9670;&#160;</a></span>PrepareNonContactConstraints()</h2>

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<p>Prepare for simulation step by allocating space for the non-contact constraints. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a3a23a4981c11d55933cc2533504eb38a">&#9670;&#160;</a></span>ResetIslands()</h2>

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<p>After you're done calling the three functions above, call this function to free associated data. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#a576814bc0405702b74174635e0b44d6d">&#9670;&#160;</a></span>SetNumPositionSteps()</h2>

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<p>The number of position iterations for each island. </p>

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<hr/>The documentation for this class was generated from the following files:<ul>
<li>Jolt/Physics/<a class="el" href="_island_builder_8h_source.html">IslandBuilder.h</a></li>
<li>Jolt/Physics/<a class="el" href="_island_builder_8cpp.html">IslandBuilder.cpp</a></li>
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