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<hr><h1>OgreOctreeNode.cpp</h1><a href="OgreOctreeNode_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">/***************************************************************************</font>
00002 <font class="comment">octreenode.cpp - description</font>
00003 <font class="comment">-------------------</font>
00004 <font class="comment">begin : Fri Sep 27 2002</font>
00005 <font class="comment">copyright : (C) 2002 by Jon Anderson</font>
00006 <font class="comment">email : janders@users.sf.net</font>
00007 <font class="comment">***************************************************************************/</font>
00008
00009 <font class="comment">/***************************************************************************</font>
00010 <font class="comment">* *</font>
00011 <font class="comment">* This program is free software; you can redistribute it and/or modify *</font>
00012 <font class="comment">* it under the terms of the GNU Lesser General Public License as *</font>
00013 <font class="comment">* published by the Free Software Foundation; either version 2 of the * </font>
00014 <font class="comment">* License, or (at your option) any later version. *</font>
00015 <font class="comment">* *</font>
00016 <font class="comment">***************************************************************************/</font>
00017
00018 <font class="preprocessor">#include <<a class="code" href="OgreRoot_8h.html">OgreRoot.h</a>></font>
00019
00020 <font class="preprocessor">#include <<a class="code" href="OgreOctreeNode_8h.html">OgreOctreeNode.h</a>></font>
00021 <font class="preprocessor">#include <<a class="code" href="OgreOctreeSceneManager_8h.html">OgreOctreeSceneManager.h</a>></font>
00022
00023 <font class="keyword">namespace </font>Ogre
00024 {
<a name="l00025"></a><a class="code" href="namespaceOgre.html#a477">00025</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <a class="code" href="namespaceOgre.html#a477">green</a> = 0xFFFFFFFF;
00026
<a name="l00027"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeq1">00027</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> OctreeNode::mIndexes[ 24 ] = {0, 1, 1, 2, 2, 3, 3, 0, <font class="comment">//back</font>
00028 0, 6, 6, 5, 5, 1, <font class="comment">//left</font>
00029 3, 7, 7, 4, 4, 2, <font class="comment">//right</font>
00030 6, 7, 5, 4 }; <font class="comment">//front</font>
<a name="l00031"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeq0">00031</a> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> OctreeNode::mColors[ 8 ] = {<a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a>, <a class="code" href="namespaceOgre.html#a477">green</a> };
00032
<a name="l00033"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea0">00033</a> OctreeNode::OctreeNode( <a class="code" href="classOgre_1_1SceneManager.html">SceneManager</a>* creator ) : <a class="code" href="classOgre_1_1SceneNode.html">SceneNode</a>( creator )
00034 {
00035 <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNoden1">mOctant</a> = 0;
00036 }
00037
<a name="l00038"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea1">00038</a> OctreeNode::OctreeNode( <a class="code" href="classOgre_1_1SceneManager.html">SceneManager</a>* creator, <font class="keyword">const</font> <a class="code" href="classOgre_1_1String.html">String</a>& name ) : <a class="code" href="classOgre_1_1SceneNode.html">SceneNode</a>( creator, name )
00039 {
00040 <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNoden1">mOctant</a> = 0;
00041 }
00042
<a name="l00043"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea2">00043</a> OctreeNode::~OctreeNode()
00044 {}
<a name="l00045"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeb1">00045</a> <font class="keywordtype">void</font> OctreeNode::_removeNodeAndChildren( )
00046 {
00047 static_cast< OctreeSceneManager * > ( mCreator ) -> _removeOctreeNode( <font class="keyword">this</font> );
00048 <font class="comment">//remove all the children nodes as well from the octree.</font>
00049 ChildNodeMap::iterator it = <a class="code" href="classOgre_1_1Node.html#Ogre_1_1TagPointn5">mChildren</a>.begin();
00050 <font class="keywordflow">while</font>( it != <a class="code" href="classOgre_1_1Node.html#Ogre_1_1TagPointn5">mChildren</a>.end() )
00051 {
00052 static_cast<OctreeNode *>( it->second ) -> <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeb1">_removeNodeAndChildren</a>();
00053 ++it;
00054 }
00055 }
<a name="l00056"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea3">00056</a> <a class="code" href="classOgre_1_1Node.html">Node</a> * OctreeNode::removeChild( <font class="keywordtype">unsigned</font> <font class="keywordtype">short</font> index )
00057 {
00058 <a class="code" href="classOgre_1_1OctreeNode.html">OctreeNode</a> *on = static_cast<OctreeNode* >( SceneNode::removeChild( index ) );
00059 on -> <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeb1">_removeNodeAndChildren</a>();
00060 <font class="keywordflow">return</font> on;
00061 }
00062
<a name="l00063"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea4">00063</a> <a class="code" href="classOgre_1_1Node.html">Node</a> * OctreeNode::removeChild( <font class="keyword">const</font> <a class="code" href="classOgre_1_1String.html">String</a> & name )
00064 {
00065 <a class="code" href="classOgre_1_1OctreeNode.html">OctreeNode</a> *on = static_cast< OctreeNode * >( SceneNode::removeChild( name ) );
00066 on -> <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeb1">_removeNodeAndChildren</a>( );
00067 <font class="keywordflow">return</font> on;
00068 }
00069
00070
00071 <font class="comment">//same as SceneNode, only it doesn't care about children...</font>
<a name="l00072"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodeb0">00072</a> <font class="keywordtype">void</font> OctreeNode::_updateBounds( <font class="keywordtype">void</font> )
00073 {
00074 <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden6">mWorldAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa15">setNull</a>();
00075 <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNoden0">mLocalAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa15">setNull</a>();
00076
00077 <font class="comment">// Update bounds from own attached objects</font>
00078 ObjectMap::iterator i = <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden0">mObjectsByName</a>.begin();
00079 <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a> bx;
00080
00081 <font class="keywordflow">while</font> ( i != <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden0">mObjectsByName</a>.end() )
00082 {
00083
00084 <font class="comment">// Get local bounds of object</font>
00085 bx = i->second ->getBoundingBox();
00086
00087 <a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNoden0">mLocalAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa12">merge</a>( bx );
00088
00089 <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden6">mWorldAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa12">merge</a>( i->second ->getWorldBoundingBox(<font class="keyword">true</font>) );
00090 ++i;
00091 }
00092
00093
00094 <font class="comment">//update the OctreeSceneManager that things might have moved.</font>
00095 <font class="comment">// if it hasn't been added to the octree, add it, and if has moved</font>
00096 <font class="comment">// enough to leave it's current node, we'll update it.</font>
00097 <font class="keywordflow">if</font> ( ! <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden6">mWorldAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa16">isNull</a>() )
00098 {
00099 static_cast < OctreeSceneManager * > ( mCreator ) -> _updateOctreeNode( <font class="keyword">this</font> );
00100 }
00101
00102 }
00103
<a name="l00106"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea7">00106</a> <font class="keywordtype">bool</font> OctreeNode::_isIn( <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a> &box )
00107 {
00108
00109 <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> center = <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden6">mWorldAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa4">getMaximum</a>().<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3a26">midPoint</a>( <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden6">mWorldAABB</a>.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa3">getMinimum</a>() );
00110
00111 <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> bmin = box.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa3">getMinimum</a>();
00112 <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> bmax = box.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa4">getMaximum</a>();
00113
00114 <font class="keywordflow">return</font> ( bmax > center && bmin < center );
00115
00116 }
00117
<a name="l00119"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea8">00119</a> <font class="keywordtype">void</font> OctreeNode::_addToRenderQueue( <a class="code" href="classOgre_1_1Camera.html">Camera</a>* cam, <a class="code" href="classOgre_1_1RenderQueue.html">RenderQueue</a> *queue )
00120 {
00121 ObjectMap::iterator mit = <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden0">mObjectsByName</a>.begin();
00122
00123 <font class="keywordflow">while</font> ( mit != <a class="code" href="classOgre_1_1SceneNode.html#Ogre_1_1SceneNoden0">mObjectsByName</a>.end() )
00124 {
00125 <a class="code" href="classOgre_1_1MovableObject.html">MovableObject</a> * mo = mit->second;
00126
00127 mo-><a class="code" href="classOgre_1_1MovableObject.html#Ogre_1_1MovableObjecta7">_notifyCurrentCamera</a>(cam);
00128 <font class="keywordflow">if</font> ( mo-><a class="code" href="classOgre_1_1MovableObject.html#Ogre_1_1WireBoundingBoxa23">isVisible</a>() )
00129 {
00130 mo -> _updateRenderQueue( queue );
00131 }
00132
00133 ++mit;
00134 }
00135
00136 }
00137
00138
<a name="l00139"></a><a class="code" href="classOgre_1_1OctreeNode.html#Ogre_1_1OctreeNodea9">00139</a> <font class="keywordtype">void</font> OctreeNode::getRenderOperation( <a class="code" href="classOgre_1_1RenderOperation.html">RenderOperation</a>& rend )
00140 {
00141
00142 <font class="comment">/* TODO</font>
00143 <font class="comment"> rend.useIndexes = true;</font>
00144 <font class="comment"> rend.numTextureCoordSets = 0; // no textures</font>
00145 <font class="comment"> rend.vertexOptions = LegacyRenderOperation::VO_DIFFUSE_COLOURS;</font>
00146 <font class="comment"> rend.operationType = LegacyRenderOperation::OT_LINE_LIST;</font>
00147 <font class="comment"> rend.numVertices = 8;</font>
00148 <font class="comment"> rend.numIndexes = 24;</font>
00149 <font class="comment"></font>
00150 <font class="comment"> rend.pVertices = mCorners;</font>
00151 <font class="comment"> rend.pIndexes = mIndexes;</font>
00152 <font class="comment"> rend.pDiffuseColour = mColors;</font>
00153 <font class="comment"></font>
00154 <font class="comment"> const Vector3 * corners = _getLocalAABB().getAllCorners();</font>
00155 <font class="comment"></font>
00156 <font class="comment"> int index = 0;</font>
00157 <font class="comment"></font>
00158 <font class="comment"> for ( int i = 0; i < 8; i++ )</font>
00159 <font class="comment"> {</font>
00160 <font class="comment"> rend.pVertices[ index ] = corners[ i ].x;</font>
00161 <font class="comment"> index++;</font>
00162 <font class="comment"> rend.pVertices[ index ] = corners[ i ].y;</font>
00163 <font class="comment"> index++;</font>
00164 <font class="comment"> rend.pVertices[ index ] = corners[ i ].z;</font>
00165 <font class="comment"> index++;</font>
00166 <font class="comment"> }</font>
00167 <font class="comment"> */</font>
00168
00169
00170 }
00171 }
</pre></div><p>
Copyright © 2002-2003 by The OGRE Team<br />
Last modified Wed Jan 21 00:10:19 2004
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