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<hr><h1>OgreTerrainSceneManager.cpp</h1><a href="OgreTerrainSceneManager_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">/***************************************************************************</font>
00002 <font class="comment">terrainscenemanager.cpp - description</font>
00003 <font class="comment">-------------------</font>
00004 <font class="comment">begin : Mon Sep 23 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 published by *</font>
00013 <font class="comment">* the Free Software Foundation; either version 2 of the License, or *</font>
00014 <font class="comment">* (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="OgreTerrainSceneManager_8h.html">OgreTerrainSceneManager.h</a>></font>
00019 <font class="preprocessor">#include <<a class="code" href="OgreImage_8h.html">OgreImage.h</a>></font>
00020 <font class="preprocessor">#include <<a class="code" href="OgreConfigFile_8h.html">OgreConfigFile.h</a>></font>
00021 <font class="preprocessor">#include <<a class="code" href="OgreMaterial_8h.html">OgreMaterial.h</a>></font>
00022 <font class="preprocessor">#include <<a class="code" href="OgreTechnique_8h.html">OgreTechnique.h</a>></font>
00023 <font class="preprocessor">#include <<a class="code" href="OgrePass_8h.html">OgrePass.h</a>></font>
00024 <font class="preprocessor">#include <<a class="code" href="OgreCamera_8h.html">OgreCamera.h</a>></font>
00025 <font class="preprocessor">#include "<a class="code" href="OgreException_8h.html">OgreException.h</a>"</font>
00026 <font class="preprocessor">#include "<a class="code" href="OgreStringConverter_8h.html">OgreStringConverter.h</a>"</font>
00027 <font class="preprocessor">#include <<a class="code" href="OgreRenderSystem_8h.html">OgreRenderSystem.h</a>></font>
00028 <font class="preprocessor">#include <fstream></font>
00029
00030 <font class="keyword">namespace </font>Ogre
00031 {
00032
<a name="l00033"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera0">00033</a> TerrainSceneManager::TerrainSceneManager() : <a class="code" href="classOgre_1_1OctreeSceneManager.html">OctreeSceneManager</a>( )
00034 {
00035 <font class="comment">//setDisplaySceneNodes( true );</font>
00036 <font class="comment">//setShowBoxes( true );</font>
00037 }
00038
<a name="l00039"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera1">00039</a> TerrainSceneManager::~TerrainSceneManager()
00040 {
00041 size_t size = <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>.size();
00042
00043 <font class="keywordflow">for</font> ( size_t i = 0; i < size; i++ )
00044 <font class="keywordflow">for</font> ( size_t j = 0; j < size; j++ )
00045 <font class="keyword">delete</font> <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ];
00046 }
00047
<a name="l00048"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera2">00048</a> <font class="keywordtype">void</font> TerrainSceneManager::setWorldGeometry( <font class="keyword">const</font> <a class="code" href="classOgre_1_1String.html">String</a>& filename )
00049 {
00050 <font class="keywordtype">int</font> i, j;
00051
00052 <font class="comment">/* Set up the options */</font>
00053 <a class="code" href="classOgre_1_1ConfigFile.html">ConfigFile</a> config;
00054 <a class="code" href="classOgre_1_1TerrainOptions.html">TerrainOptions</a> options;
00055
00056 config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea1">load</a>( filename );
00057
00058 <font class="keywordflow">if</font> ( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"DetailTile"</font> ) != <font class="stringliteral">""</font> )
00059 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm12">detail_tile</a> = atoi( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"DetailTile"</font> ) );
00060
00061 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm5">max_mipmap</a> = atoi( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"MaxMipMapLevel"</font> ) );
00062
00063 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm6">scalex</a> = atof( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"ScaleX"</font> ) );
00064
00065 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm7">scaley</a> = atof( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"ScaleY"</font> ) );
00066
00067 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm8">scalez</a> = atof( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"ScaleZ"</font> ) );
00068
00069 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm9">max_pixel_error</a> = atoi( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"MaxPixelError"</font> ) );
00070
00071 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm1">size</a> = atoi( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"TileSize"</font> ) );
00072
00073 <a class="code" href="classOgre_1_1String.html">String</a> terrain_filename = config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"Terrain"</font> );
00074
00075 <a class="code" href="classOgre_1_1String.html">String</a> detail_texture = config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"DetailTexture"</font> );
00076
00077 <a class="code" href="classOgre_1_1String.html">String</a> world_texture = config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"WorldTexture"</font> );
00078
00079 <font class="keywordflow">if</font> ( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"VertexColors"</font> ) == <font class="stringliteral">"yes"</font> )
00080 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm15">colored</a> = <font class="keyword">true</font>;
00081
00082 <font class="keywordflow">if</font> ( config.<a class="code" href="classOgre_1_1ConfigFile.html#Ogre_1_1ConfigFilea2">getSetting</a>( <font class="stringliteral">"VertexNormals"</font> ) == <font class="stringliteral">"yes"</font> )
00083 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm14">lit</a> = <font class="keyword">true</font>;
00084
00085 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern3">mScale</a> = <a class="code" href="classOgre_1_1Vector3.html">Vector3</a>( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm6">scalex</a>, options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm7">scaley</a>, options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm8">scalez</a> );
00086
00087 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern1">mTileSize</a> = options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm1">size</a>;
00088
00089 <a class="code" href="classOgre_1_1Image.html">Image</a> image;
00090
00091 image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea7">load</a>( terrain_filename );
00092
00093 <font class="comment">//check to make sure it's 2^n + 1 size.</font>
00094 <font class="keywordflow">if</font> ( image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea14">getWidth</a>() != image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea15">getHeight</a>() ||
00095 ! <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagerb0">_checkSize</a>( image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea14">getWidth</a>() ) )
00096 {
00097 <a class="code" href="classOgre_1_1String.html">String</a> err = <font class="stringliteral">"Error: Invalid heightmap size : "</font> +
00098 StringConverter::toString( image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea14">getWidth</a>() ) +
00099 <font class="stringliteral">","</font> + StringConverter::toString( image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea15">getHeight</a>() ) +
00100 <font class="stringliteral">". Should be 2^n+1, 2^n+1"</font>;
00101 <a class="code" href="OgreException_8h.html#a0">Except</a>( Exception::ERR_INVALIDPARAMS, err, <font class="stringliteral">"TerrainSceneManager::setWorldGeometry"</font> );
00102 }
00103
00104 <font class="keywordflow">if</font> ( image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea18">getFormat</a>() != <a class="code" href="namespaceOgre.html#a623a101">PF_L8</a> )
00105 {
00106 <a class="code" href="OgreException_8h.html#a0">Except</a>( Exception::ERR_INVALIDPARAMS, <font class="stringliteral">"Error: Image is not a grayscale image."</font>,
00107 <font class="stringliteral">"TerrainSceneManager::setWorldGeometry"</font> );
00108 }
00109
00110 <font class="keyword">const</font> <a class="code" href="namespaceOgre.html#a350">uchar</a> *data = image. getData();
00111
00112 <font class="keywordtype">int</font> size = image.<a class="code" href="classOgre_1_1Image.html#Ogre_1_1Imagea14">getWidth</a>();
00113
00114 <font class="comment">// set up the octree size.</font>
00115 <font class="keywordtype">float</font> max_x = options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm6">scalex</a> * size;
00116
00117 <font class="keywordtype">float</font> max_y = 255 * options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm7">scaley</a>;
00118
00119 <font class="keywordtype">float</font> max_z = options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm8">scalez</a> * size;
00120
00121 <a class="code" href="classOgre_1_1OctreeSceneManager.html#Ogre_1_1TerrainSceneManagera27">resize</a>( <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a>( 0, 0, 0, max_x, max_y, max_z ) );
00122
00123
00124
00125 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm0">data</a> = data;
00126
00127 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm2">world_size</a> = size;
00128
00129 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a> = <a class="code" href="classOgre_1_1SceneManager.html#Ogre_1_1TerrainSceneManagera42">createMaterial</a>( <font class="stringliteral">"Terrain"</font> );
00130
00131 <font class="keywordflow">if</font> ( world_texture != <font class="stringliteral">""</font> )
00132 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a>-><a class="code" href="classOgre_1_1Material.html#Ogre_1_1Materiala7">getTechnique</a>(0)-><a class="code" href="classOgre_1_1Technique.html#Ogre_1_1Techniquea6">getPass</a>(0)-><a class="code" href="classOgre_1_1Pass.html#Ogre_1_1Passa22">createTextureUnitState</a>( world_texture, 0 );
00133
00134 <font class="keywordflow">if</font> ( detail_texture != <font class="stringliteral">""</font> )
00135 {
00136 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a>-><a class="code" href="classOgre_1_1Material.html#Ogre_1_1Materiala7">getTechnique</a>(0)-><a class="code" href="classOgre_1_1Technique.html#Ogre_1_1Techniquea6">getPass</a>(0)-><a class="code" href="classOgre_1_1Pass.html#Ogre_1_1Passa22">createTextureUnitState</a>( detail_texture, 1 );
00137 }
00138
00139 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a> -> setLightingEnabled( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm14">lit</a> );
00140
00141 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a>-><a class="code" href="classOgre_1_1Material.html#Ogre_1_1Materiala14">load</a>();
00142
00143
00144 <font class="comment">//create a root terrain node.</font>
00145 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern5">mTerrainRoot</a> = <a class="code" href="classOgre_1_1SceneManager.html#Ogre_1_1TerrainSceneManagera46">getRootSceneNode</a>() -> createChildSceneNode( <font class="stringliteral">"Terrain"</font> );
00146
00147 <font class="comment">//setup the tile array.</font>
00148 <font class="keywordtype">int</font> num_tiles = ( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm2">world_size</a> - 1 ) / ( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm1">size</a> - 1 );
00149
00150 <font class="keywordflow">for</font> ( i = 0; i < num_tiles; i++ )
00151 {
00152 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>.push_back( <a class="code" href="namespaceOgre.html#a474">TerrainRow</a>() );
00153
00154 <font class="keywordflow">for</font> ( j = 0; j < num_tiles; j++ )
00155 {
00156 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ].push_back( 0 );
00157 }
00158 }
00159
00160 <font class="keywordtype">char</font> name[ 24 ];
00161 <font class="keywordtype">int</font> p = 0;
00162 <font class="keywordtype">int</font> q = 0;
00163
00164 <font class="keywordflow">for</font> ( j = 0; j < options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm2">world_size</a> - 1; j += ( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm1">size</a> - 1 ) )
00165 {
00166 p = 0;
00167
00168 <font class="keywordflow">for</font> ( i = 0; i < options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm2">world_size</a> - 1; i += ( options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm1">size</a> - 1 ) )
00169 {
00170 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm3">startx</a> = i;
00171 options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm4">startz</a> = j;
00172 sprintf( name, <font class="stringliteral">"tile[%d,%d]"</font>, p, q );
00173
00174 <a class="code" href="classOgre_1_1SceneNode.html">SceneNode</a> *c = <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern5">mTerrainRoot</a> -> createChildSceneNode( name );
00175 <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a> *tile = <font class="keyword">new</font> <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a>();
00176
00177 tile -> setMaterial( <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern4">mTerrainMaterial</a> );
00178 tile -> <a class="code" href="classOgre_1_1OctreeSceneManager.html#Ogre_1_1TerrainSceneManagera10">init</a>( options );
00179
00180 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ p ][ q ] = tile;
00181
00182 c -> attachObject( tile );
00183 p++;
00184 }
00185
00186 q++;
00187
00188 }
00189
00190
00191 <font class="comment">//setup the neighbor links.</font>
00192 size = ( int ) <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>.size();
00193
00194 <font class="keywordflow">for</font> ( j = 0; j < size; j++ )
00195 {
00196 <font class="keywordflow">for</font> ( i = 0; i < size; i++ )
00197 {
00198 <font class="keywordflow">if</font> ( j != size - 1 )
00199 {
00200 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] -> _setNeighbor( TerrainRenderable::SOUTH, <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j + 1 ] );
00201 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j + 1 ] -> _setNeighbor( TerrainRenderable::NORTH, <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] );
00202 }
00203
00204 <font class="keywordflow">if</font> ( i != size - 1 )
00205 {
00206 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] -> _setNeighbor( TerrainRenderable::EAST, <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i + 1 ][ j ] );
00207 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i + 1 ][ j ] -> _setNeighbor( TerrainRenderable::WEST, <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] );
00208 }
00209
00210 }
00211 }
00212
00213 <font class="keywordflow">if</font>(options.<a class="code" href="classOgre_1_1TerrainOptions.html#Ogre_1_1TerrainOptionsm14">lit</a>)
00214 {
00215 <font class="keywordflow">for</font> ( j = 0; j < size; j++ )
00216 {
00217 <font class="keywordflow">for</font> ( i = 0; i < size; i++ )
00218 {
00219 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] -> _calculateNormals( );
00220 <font class="comment">// mTiles[ i ][ j ] -> _generateVertexLighting( Vector3( 255, 100, 255 ), ColourValue(.25,.25,.25) );</font>
00221 }
00222 }
00223 }
00224
00225 <font class="comment">/*</font>
00226 <font class="comment"> for ( j = 0; j < size; j++ )</font>
00227 <font class="comment"> {</font>
00228 <font class="comment"> for ( i = 0; i < size; i++ )</font>
00229 <font class="comment"> {</font>
00230 <font class="comment"> mTiles[ i ][ j ] -> _generateVertexLighting( Vector3( 255, 50, 255 ), ColourValue( .25, .25, .25 ) );</font>
00231 <font class="comment"> }</font>
00232 <font class="comment"> }</font>
00233 <font class="comment"> */</font>
00234
00235
00236
00237 <font class="comment">// intersectSegment( Vector3(255, getHeightAt(255,255), 255), Vector3(255,50,255), 0 );</font>
00238
00239
00240 }
00241
00242
<a name="l00243"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera3">00243</a> <font class="keywordtype">void</font> TerrainSceneManager::_updateSceneGraph( <a class="code" href="classOgre_1_1Camera.html">Camera</a> * cam )
00244
00245 {
00246
00247 <font class="comment">//Vector3 c = cam -> getPosition();</font>
00248 <font class="comment">//c.y = getHeightAt(c.x, c.z ) + 2;</font>
00249 <font class="comment">//cam -> setPosition( c );</font>
00250
00251 OctreeSceneManager::_updateSceneGraph( cam );
00252 }
00253
<a name="l00254"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera4">00254</a> <font class="keywordtype">void</font> TerrainSceneManager::_renderVisibleObjects( <font class="keywordtype">void</font> )
00255 {
00256
00257 <font class="keywordflow">for</font> ( <font class="keywordtype">int</font> i = 0; i < ( int ) <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>.size(); i++ )
00258 {
00259 <font class="keywordflow">for</font> ( <font class="keywordtype">int</font> j = 0; j < ( int ) <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>.size(); j++ )
00260 {
00261 <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ i ][ j ] ->_alignNeighbors();
00262 }
00263 }
00264
00265 <a class="code" href="classOgre_1_1SceneManager.html#Ogre_1_1TerrainSceneManagern20">mDestRenderSystem</a> -> setLightingEnabled( <font class="keyword">false</font> );
00266
00267 OctreeSceneManager::_renderVisibleObjects();
00268
00269 TerrainRenderable::mRenderedTris = 0;
00270
00271 }
00272
<a name="l00273"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera5">00273</a> <font class="keywordtype">void</font> TerrainSceneManager::_findVisibleObjects ( <a class="code" href="classOgre_1_1Camera.html">Camera</a> * cam )
00274 {
00275 OctreeSceneManager::_findVisibleObjects( cam );
00276 }
00277
<a name="l00278"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera6">00278</a> <font class="keywordtype">float</font> TerrainSceneManager::getHeightAt( <font class="keywordtype">float</font> x, <font class="keywordtype">float</font> z )
00279 {
00280
00281
00282 <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> pt( x, 0, z );
00283
00284 <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a> * t = <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera9">getTerrainTile</a>( pt );
00285
00286 <font class="keywordflow">if</font> ( t == 0 )
00287 {
00288 <font class="comment">// printf( "No tile found for point\n" );</font>
00289 <font class="keywordflow">return</font> -1;
00290 }
00291
00292 <font class="keywordtype">float</font> h = t -> <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera6">getHeightAt</a>( x, z );
00293
00294 <font class="comment">// printf( "Height is %f\n", h );</font>
00295 <font class="keywordflow">return</font> h;
00296
00297 }
00298
<a name="l00299"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera9">00299</a> <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a> * TerrainSceneManager::getTerrainTile( <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> & pt )
00300 {
00301 <font class="comment">/* Since we don't know if the terrain is square, or has holes, we use a line trace</font>
00302 <font class="comment"> to find the containing tile...</font>
00303 <font class="comment"> */</font>
00304
00305 <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a> * tile = <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagern6">mTiles</a>[ 0 ][ 0 ];
00306
00307 <font class="keywordflow">while</font> ( tile != 0 )
00308 {
00309 <a class="code" href="classOgre_1_1AxisAlignedBox.html">AxisAlignedBox</a> b = tile -> getBoundingBox();
00310 <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> *corners = b.<a class="code" href="classOgre_1_1AxisAlignedBox.html#Ogre_1_1AxisAlignedBoxa11">getAllCorners</a>();
00311
00312 <font class="keywordflow">if</font> ( pt.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> < corners[ 0 ].<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> )
00313 tile = tile -> _getNeighbor( TerrainRenderable::WEST );
00314 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ( pt.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> > corners[ 4 ].<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m0">x</a> )
00315 tile = tile -> _getNeighbor( TerrainRenderable::EAST );
00316 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ( pt.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> < corners[ 0 ].<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> )
00317 tile = tile -> _getNeighbor( TerrainRenderable::NORTH );
00318 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ( pt.<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> > corners[ 4 ].<a class="code" href="classOgre_1_1Vector3.html#Ogre_1_1Vector3m2">z</a> )
00319 tile = tile -> _getNeighbor( TerrainRenderable::SOUTH );
00320 <font class="keywordflow">else</font>
00321 <font class="keywordflow">return</font> tile;
00322 }
00323
00324 <font class="keywordflow">return</font> 0;
00325 }
00326
00327
<a name="l00328"></a><a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera7">00328</a> <font class="keywordtype">bool</font> TerrainSceneManager::intersectSegment( <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> & start, <font class="keyword">const</font> <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> & end, <a class="code" href="classOgre_1_1Vector3.html">Vector3</a> * result )
00329 {
00330
00331 <a class="code" href="classOgre_1_1TerrainRenderable.html">TerrainRenderable</a> * t = <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera9">getTerrainTile</a>( start );
00332
00333 <font class="keywordflow">if</font> ( t == 0 )
00334 {
00335 *result = <a class="code" href="classOgre_1_1Vector3.html">Vector3</a>( -1, -1, -1 );
00336 <font class="keywordflow">return</font> <font class="keyword">false</font>;
00337 }
00338
00339 <font class="keywordflow">return</font> t -> <a class="code" href="classOgre_1_1TerrainSceneManager.html#Ogre_1_1TerrainSceneManagera7">intersectSegment</a>( start, end, result );
00340 }
00341
00342 } <font class="comment">//namespace</font>
</pre></div><p>
Copyright © 2002-2003 by The OGRE Team<br />
Last modified Wed Jan 21 00:10:29 2004
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