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<hr><h1>background_sound_manager.cpp</h1><a href="background__sound__manager_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 
00027 <font class="preprocessor">#include "<a class="code" href="stdsound_8h.html">stdsound.h</a>"</font>
00028 
00029 <font class="preprocessor">#include "<a class="code" href="file_8h.html">nel/misc/file.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="i__xml_8h.html">nel/misc/i_xml.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="path_8h.html">nel/misc/path.h</a>"</font>
00032 
00033 <font class="preprocessor">#include "<a class="code" href="primitive_8h.html">nel/ligo/primitive.h</a>"</font>
00034 
00035 <font class="preprocessor">#include "<a class="code" href="u__source_8h.html">nel/sound/u_source.h</a>"</font>
00036 
00037 <font class="preprocessor">#include "<a class="code" href="background__sound__manager_8h.html">background_sound_manager.h</a>"</font>
00038 <font class="preprocessor">#include &lt;algorithm&gt;</font>
00039 
00040 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00041 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00042 <font class="keyword">using</font> <font class="keyword">namespace </font>NLLIGO;
00043 
00044 
00045 <font class="keyword">namespace </font>NLSOUND {
00046 
00047 <font class="comment">// external sound are cliping after 10 meter inside the inner patate</font>
00048 <font class="keyword">const</font> <font class="keywordtype">float</font>     <a class="code" href="namespaceNLSOUND.html#a17">INSIDE_FALLOF</a> = 10.0f; 
00049 
00050 <font class="comment">//UAudioMixer *CBackgroundSoundManager::_AudioMixer = NULL;</font>
00051 
00052 
<a name="l00053"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c0">00053</a> CBackgroundSoundManager::CBackgroundSoundManager()
00054 : _LastPosition(0,0,0), _Playing(false)
00055 {
00056 }
00057 
<a name="l00058"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c1">00058</a> CBackgroundSoundManager::~CBackgroundSoundManager()
00059 {
00060         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a4">unload</a>();
00061 }
00062 
<a name="l00063"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a11">00063</a> <font class="keyword">const</font> UAudioMixer::TBackgroundFlags &amp;CBackgroundSoundManager::getBackgroundFlags()
00064 {
00065         <font class="keywordflow">return</font>  <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o1">_BackgroundFlags</a>;
00066 }
00067 
<a name="l00068"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a12">00068</a> <font class="keywordtype">void</font> CBackgroundSoundManager::setBackgroundFlags(<font class="keyword">const</font> UAudioMixer::TBackgroundFlags &amp;backgroundFlags)
00069 {
00070         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o1">_BackgroundFlags</a> = backgroundFlags;
00071 }
00072 
<a name="l00073"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c2">00073</a> <font class="keywordtype">void</font> CBackgroundSoundManager::addSound(<font class="keyword">const</font> std::string &amp;soundName, <font class="keyword">const</font> std::vector&lt;NLLIGO::CPrimVector&gt; &amp;points, <font class="keywordtype">bool</font> isPath)
00074 {
00075         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#l0">CAudioMixerUser</a> *mixer = CAudioMixerUser::instance();
00076         uint layerId = 0;
00077         uint n = 0;
00078         string name;
00079         <font class="comment">// count the number of '-' in the sgtring.</font>
00080         n = <a class="code" href="cf__gramatical_8cpp.html#a70">std::count</a>(soundName.begin(), soundName.end(), <font class="charliteral">'-'</font>);
00081 
00082         <font class="keywordflow">if</font> (n == 2)
00083         {
00084                 <font class="comment">// no layer spec, default to layer A</font>
00085                 uint32 pos1 = soundName.find (<font class="stringliteral">"-"</font>);
00086                 <font class="keywordflow">if</font>(pos1 == string::npos)
00087                 {
00088                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"zone have the malformated name '%s' missing -name-"</font>, soundName.c_str());
00089                         <font class="keywordflow">return</font>;
00090                 }
00091                 pos1++;
00092 
00093                 uint32 pos2 = soundName.find (<font class="stringliteral">"-"</font>, pos1);
00094                 <font class="keywordflow">if</font>(pos2 == string::npos)
00095                 {
00096                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"zone have the malformated name '%s' missing -name-"</font>, soundName.c_str());
00097                         <font class="keywordflow">return</font>;
00098                 }
00099 
00100                 name = soundName.substr(pos1, pos2-pos1);
00101         }
00102         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (n == 3)
00103         {
00104                 <font class="comment">// layer spec !</font>
00105                 uint32 pos1 = soundName.find (<font class="stringliteral">"-"</font>);
00106                 uint32 pos2 = soundName.find (<font class="stringliteral">"-"</font>, pos1+1);
00107                 <font class="keywordflow">if</font>(pos1 == string::npos || pos2 == string::npos)
00108                 {
00109                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"zone have the malformated name '%s' missing -layerId- or -name-"</font>, soundName.c_str());
00110                         <font class="keywordflow">return</font>;
00111                 }
00112                 pos1++;
00113 
00114                 uint32 pos3 = soundName.find (<font class="stringliteral">"-"</font>, pos2+1);
00115                 <font class="keywordflow">if</font>(pos3 == string::npos)
00116                 {
00117                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"zone have the malformated name '%s' missing -name-"</font>, soundName.c_str());
00118                         <font class="keywordflow">return</font>;
00119                 }
00120 
00121                 <font class="keywordtype">char</font> <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> = soundName[pos1];
00122 
00123                 <font class="comment">// check caps</font>
00124                 <font class="keywordflow">if</font> (<a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> &lt; <font class="charliteral">'a'</font>)
00125                         <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> = <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> + (<font class="charliteral">'a'</font> - <font class="charliteral">'A'</font>);
00126 
00127                 layerId = <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a> - <font class="charliteral">'a'</font>;
00128 
00129                 <a class="code" href="namespaceNLMISC.html#a215">NLMISC::clamp</a>(layerId, 0u, <a class="code" href="namespaceNLSOUND.html#a18">BACKGROUND_LAYER</a>-1);
00130                 pos2++;
00131 
00132                 name = soundName.substr(pos2, pos3-pos2);
00133         }
00134         <font class="keywordflow">else</font>
00135         {
00136                 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"zone have the malformated name '%s"</font>,  soundName.c_str());
00137                 <font class="keywordflow">return</font>;
00138         }
00139                 
00140 
00141         TSoundData      sd;
00142 
00143         sd.SoundName = name;
00144         sd.Sound = mixer-&gt;getSoundId(sd.SoundName);
00145         sd.Source = 0;
00146 
00147         <font class="comment">// Copy the points</font>
00148         sd.Points.resize (points.size ());
00149         <font class="keywordflow">for</font> (uint i=0; i&lt;points.size (); i++)
00150                 sd.Points[i] = points[i];
00151 
00152         sd.Selected = <font class="keyword">false</font>;
00153         sd.IsPath = isPath;
00154 
00155         <font class="keywordflow">if</font> (sd.Sound != 0)
00156         {
00157                 <font class="comment">// the sound is available !</font>
00158                 <font class="comment">// compute bouding box/</font>
00159                 CVector vmin(FLT_MAX, FLT_MAX, 0), vmax(-FLT_MAX, -FLT_MAX, 0);
00160 
00161                 vector&lt;CVector&gt;::iterator first(sd.Points.begin()), last(sd.Points.end());
00162                 <font class="keywordflow">for</font> (; first != last; ++first)
00163                 {
00164                         vmin.x = <a class="code" href="bit__set_8cpp.html#a0">min</a>(first-&gt;x, vmin.x);
00165                         vmin.y = <a class="code" href="bit__set_8cpp.html#a0">min</a>(first-&gt;y, vmin.y);
00166                         vmax.x = max(first-&gt;x, vmax.x);
00167                         vmax.y = max(first-&gt;y, vmax.y);
00168                 }
00169                 sd.MaxBox = vmax;
00170                 sd.MinBox = vmin;
00171 
00172                 <font class="comment">// compute the surface without the sound distance</font>
00173                 sd.Surface = (vmax.x - vmin.x) * (vmax.y - vmin.y);
00174 
00175                 <font class="comment">// add the eard distance of the sound.</font>
00176                 <font class="keywordtype">float</font>   dist = sd.Sound-&gt;getMaxDistance();
00177                 sd.MaxBox.x += dist;
00178                 sd.MaxBox.y += dist;
00179                 sd.MinBox.x -= dist;
00180                 sd.MinBox.y -= dist;
00181 
00182                 sd.MaxDist = dist;
00183 
00184                 <font class="comment">// store the sound. </font>
00185                 <font class="comment">// TODO : handle the three layer.</font>
00186                 <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[layerId].push_back(sd);
00187         }
00188         <font class="keywordflow">else</font>
00189         {
00190                 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"The sound '%s' can't be loaded"</font>, sd.SoundName.c_str());
00191         }
00192 }
00193 
00194 
<a name="l00195"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a2">00195</a> <font class="keywordtype">void</font> CBackgroundSoundManager::loadSamplesFromRegion(<font class="keyword">const</font> <a class="code" href="classNLLIGO_1_1CPrimRegion.html">NLLIGO::CPrimRegion</a> &amp;region)
00196 {
00197         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_0">_Banks</a>.clear();
00198 
00199         <font class="keywordflow">for</font> (uint i=0; i&lt; region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>.size(); ++i)
00200         {
00201                 <font class="keywordflow">if</font> (region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].VPoints.size() &gt; 2)
00202                 {
00203                         TBanksData      bd;
00204                         uint pointCount = region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].VPoints.size ();
00205                         bd.Points.resize (pointCount);
00206                         <font class="keywordflow">for</font> (uint j=0; j&lt;pointCount; j++)
00207                         {
00208                                 bd.Points[j] = region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].VPoints[j];
00209                         }
00210 
00211                         <font class="comment">// compute bouding box.</font>
00212                         CVector vmin(FLT_MAX, FLT_MAX, 0), vmax(-FLT_MAX, -FLT_MAX, 0);
00213 
00214                         vector&lt;CVector&gt;::iterator first(bd.Points.begin()), last(bd.Points.end());
00215                         <font class="keywordflow">for</font> (; first != last; ++first)
00216                         {
00217                                 vmin.x = <a class="code" href="bit__set_8cpp.html#a0">min</a>(first-&gt;x, vmin.x);
00218                                 vmin.y = <a class="code" href="bit__set_8cpp.html#a0">min</a>(first-&gt;y, vmin.y);
00219                                 vmax.x = max(first-&gt;x, vmax.x);
00220                                 vmax.y = max(first-&gt;y, vmax.y);
00221                         }
00222                         bd.MaxBox = vmax;
00223                         bd.MinBox = vmin;
00224 
00225                         <font class="comment">// parse the zone name to find the samples name.</font>
00226                         std::vector&lt;std::string&gt;        splitted = <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c3">split</a>(region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].Name, <font class="charliteral">'-'</font>);
00227 
00228                         <font class="keywordflow">if</font> (splitted.size() &gt; 2)
00229                         {
00230                                 <font class="keywordflow">for</font> (uint j=1; j&lt;splitted.size()-1; ++j)
00231                                 {
00232                                         bd.Banks.push_back(splitted[j]);
00233                                 }
00234 
00235                                 <font class="comment">// ok, store it in the container.</font>
00236                                 <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_0">_Banks</a>.push_back(bd);
00237                         }
00238                         <font class="keywordflow">else</font>
00239                         {
00240                                 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"A sample bank patatoid name did'nt contains banks name '%s'"</font>, region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].Name.c_str());
00241                         }
00242                 }
00243                 <font class="keywordflow">else</font>
00244                 {
00245                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"A sample bank patatoid have less than 3 points '%s'"</font>, region.<a class="code" href="classNLLIGO_1_1CPrimRegion.html#m2">VZones</a>[i].Name.c_str());
00246                 }
00247         }
00248 }
00249 
<a name="l00250"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a1">00250</a> <font class="keywordtype">void</font> CBackgroundSoundManager::loadEffecsFromRegion(<font class="keyword">const</font> <a class="code" href="classNLLIGO_1_1CPrimRegion.html">NLLIGO::CPrimRegion</a> &amp;region)
00251 {
00252 }
00253 
00254 <font class="keywordtype">void</font> CBackgroundSoundManager::loadSoundsFromRegion(<font class="keyword">const</font> CPrimRegion &amp;region)
00255 {
00256         uint i;
00257         <font class="comment">// remember playing state</font>
00258         <font class="keywordtype">bool</font> oldState = <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o0">_Playing</a>;
00259         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a4">unload</a>();
00260 
00261         <font class="keywordflow">for</font> (i = 0; i &lt; region.VZones.size(); i++)
00262         {
00263                 <font class="keywordflow">if</font>(region.VZones[i].VPoints.size()&gt;2)
00264                 {
00265                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c2">addSound</a>(region.VZones[i].Name, region.VZones[i].VPoints, <font class="keyword">false</font>);
00266                 }
00267                 <font class="keywordflow">else</font>
00268                 {
00269                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"A background sound patatoid have less than 3 points '%s'"</font>, region.VZones[i].Name.c_str());
00270                 }
00271         }
00272 
00273         <font class="keywordflow">for</font> (i = 0; i &lt; region.VPaths.size(); i++)
00274         {
00275                 <font class="keywordflow">if</font>(region.VPaths[i].VPoints.size() &gt; 1)
00276                 {
00277                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c2">addSound</a>(region.VPaths[i].Name, region.VPaths[i].VPoints, <font class="keyword">true</font>);
00278                 }
00279                 <font class="keywordflow">else</font>
00280                 {
00281                         <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"A background sound path have less than 2 points '%s'"</font>, region.VPaths[i].Name.c_str());
00282                 }
00283         }
00284         <font class="keywordflow">for</font> (i = 0; i &lt; region.VPoints.size(); i++)
00285         {
00286                 std::vector&lt;CPrimVector&gt;        points;
00287                 points.push_back(region.VPoints[i].Point);
00288 
00289                 <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#c2">addSound</a>(region.VPoints[i].Name, points, <font class="keyword">false</font>);
00290         }
00291 
00292 
00293         <font class="comment">// restart playing ?</font>
00294         <font class="keywordflow">if</font> (oldState)
00295                 <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a5">play</a>();
00296 }
00297 
00298 <font class="keywordtype">void</font> CBackgroundSoundManager::load (<font class="keyword">const</font> string &amp;continent)
00299 {
00300         <font class="comment">// load the sound.</font>
00301         {
00302                 CIFile <a class="code" href="cf__lexical_8cpp.html#a95">file</a>;
00303                 CPrimRegion region;
00304                 string fn = continent+<font class="stringliteral">"_audio.prim"</font>;
00305 
00306                 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"loading '%s'"</font>, fn.c_str());
00307 
00308                 string path = CPath::lookup(fn, <font class="keyword">false</font>);
00309 
00310                 <font class="keywordflow">if</font>(!path.empty() &amp;&amp; <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.open (path))
00311                 {
00312                         CIXml xml;
00313                         xml.init (<a class="code" href="cf__lexical_8cpp.html#a95">file</a>);
00314                         region.serial(xml);
00315                         <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.close ();
00316 
00317                         <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"Region '%s' contains %d zones for the background sounds"</font>, continent.c_str(), region.VZones.size());
00318 
00319                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a0">loadSoundsFromRegion</a>(region);
00320                 }
00321         }
00322         <font class="comment">// load the effect.</font>
00323         {
00324                 CIFile <a class="code" href="cf__lexical_8cpp.html#a95">file</a>;
00325                 CPrimRegion region;
00326                 string fn = continent+<font class="stringliteral">"_effects.prim"</font>;
00327 
00328                 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"loading '%s'"</font>, fn.c_str());
00329 
00330                 string path = CPath::lookup(fn, <font class="keyword">false</font>);
00331 
00332                 <font class="keywordflow">if</font>(!path.empty() &amp;&amp; <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.open (path))
00333                 {
00334                         CIXml xml;
00335                         xml.init (<a class="code" href="cf__lexical_8cpp.html#a95">file</a>);
00336                         region.serial(xml);
00337                         <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.close ();
00338 
00339                         <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"Region '%s' contains %d zones for the background effetcs"</font>, continent.c_str(), region.VZones.size());
00340 
00341                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a1">loadEffecsFromRegion</a>(region);
00342                 }
00343         }
00344         <font class="comment">// load the samples banks.</font>
00345         {
00346                 CIFile <a class="code" href="cf__lexical_8cpp.html#a95">file</a>;
00347                 CPrimRegion region;
00348                 string fn = continent+<font class="stringliteral">"_samples.prim"</font>;
00349 
00350                 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"loading '%s'"</font>, fn.c_str());
00351 
00352                 string path = CPath::lookup(fn, <font class="keyword">false</font>);
00353 
00354                 <font class="keywordflow">if</font>(!path.empty() &amp;&amp; <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.open (path))
00355                 {
00356                         CIXml xml;
00357                         xml.init (<a class="code" href="cf__lexical_8cpp.html#a95">file</a>);
00358                         region.serial(xml);
00359                         <a class="code" href="cf__lexical_8cpp.html#a95">file</a>.close ();
00360 
00361                         <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"Region '%s' contains %d zones for the background samples banks"</font>, continent.c_str(), region.VZones.size());
00362 
00363                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a2">loadSamplesFromRegion</a>(region);
00364                 }
00365         }
00366 }
00367 
00368 
<a name="l00369"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a5">00369</a> <font class="keywordtype">void</font> CBackgroundSoundManager::play ()
00370 {
00371         <font class="keywordflow">if</font> (_Playing)
00372                 <font class="keywordflow">return</font>;
00373 
00374         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o0">_Playing</a> = <font class="keyword">true</font>;
00375 
00376         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a8">updateBackgroundStatus</a>();
00377 }
00378 
00379 
<a name="l00380"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a6">00380</a> <font class="keywordtype">void</font> CBackgroundSoundManager::stop ()
00381 {
00382         <font class="keywordflow">if</font>(!<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o0">_Playing</a>)
00383                 <font class="keywordflow">return</font>;
00384         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#l0">CAudioMixerUser</a> *mixer = CAudioMixerUser::instance();
00385         
00386         <font class="keywordflow">for</font> (uint i=0; i&lt;<a class="code" href="namespaceNLSOUND.html#a18">BACKGROUND_LAYER</a>; ++i)
00387         {
00388                 <font class="comment">// stop all playing source</font>
00389                 std::vector&lt;TSoundData&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i].begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i].end());
00390                 <font class="keywordflow">for</font> (; first != last; ++first)
00391                 {
00392                         <font class="keywordflow">if</font> (first-&gt;Source != 0 &amp;&amp; first-&gt;Source-&gt;isPlaying())
00393                                 first-&gt;Source-&gt;stop();
00394                 }
00395         }
00396 
00397         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o0">_Playing</a> = <font class="keyword">false</font>;
00398 }
00399 
<a name="l00400"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a4">00400</a> <font class="keywordtype">void</font> CBackgroundSoundManager::unload ()
00401 {
00402         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a6">stop</a>();
00403 
00404         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#l0">CAudioMixerUser</a> *mixer = CAudioMixerUser::instance();
00405         
00406         <font class="keywordflow">for</font> (uint i=0; i&lt;<a class="code" href="namespaceNLSOUND.html#a18">BACKGROUND_LAYER</a>; ++i)
00407         {
00408                 <font class="comment">// delete all created source</font>
00409                 std::vector&lt;TSoundData&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i].begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i].end());
00410                 <font class="keywordflow">for</font> (; first != last; ++first)
00411                 {
00412                         <font class="keywordflow">if</font> (first-&gt;Source)
00413 <font class="comment">//                              mixer-&gt;removeSource(first-&gt;Source);</font>
00414                                 <font class="keyword">delete</font> first-&gt;Source;
00415                 }
00416 
00417                 <font class="comment">// and free the layer.</font>
00418                 <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i].clear();
00419         }
00420 }
00421 
00422 <font class="keywordtype">void</font> CBackgroundSoundManager::setListenerPosition (<font class="keyword">const</font> CVector &amp;listenerPosition)
00423 {
00424         <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o2">_LastPosition</a> == listenerPosition)
00425         {
00426                 <font class="keywordflow">return</font>;
00427         }
00428         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o2">_LastPosition</a> = listenerPosition;
00429 
00430         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a8">updateBackgroundStatus</a>();
00431 }
00432 
<a name="l00433"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a8">00433</a> <font class="keywordtype">void</font> CBackgroundSoundManager::updateBackgroundStatus()
00434 {
00435         <font class="keywordflow">if</font> (!<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o0">_Playing</a>)
00436                 <font class="keywordflow">return</font>;
00437 
00438         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#l0">CAudioMixerUser</a> *mixer = CAudioMixerUser::instance();
00439 
00440         <font class="comment">// it s on 2d so we don't have z</font>
00441         CVector listener = <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o2">_LastPosition</a>;
00442         listener.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a> = 0.0f;
00443 
00444         <font class="comment">// compute the list of load/unload banks.</font>
00445         {
00446                 <font class="comment">// set of bank that must be in ram.</font>
00447                 std::set&lt;std::string&gt;   newBanks;
00448 
00449                 std::vector&lt;TBanksData&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_0">_Banks</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_0">_Banks</a>.end());
00450                 <font class="keywordflow">for</font> (; first != last; ++first)
00451                 {
00452                         <font class="keywordflow">if</font> (listener.x &gt;= first-&gt;MinBox.x &amp;&amp; listener.x &lt;= first-&gt;MaxBox.x
00453                                 &amp;&amp; listener.y &gt;= first-&gt;MinBox.y &amp;&amp; listener.y &lt;= first-&gt;MaxBox.y
00454                                 )
00455                         {
00456                                 <font class="comment">// bounding box ok, </font>
00457                                 <font class="keywordflow">if</font> (CPrimZone::contains(listener, first-&gt;Points))
00458                                 {
00459                                         <font class="comment">// add the banks of this zone in the n</font>
00460                                         newBanks.insert(first-&gt;Banks.begin(), first-&gt;Banks.end());
00461                                 }
00462                         }
00463                 }
00464                 <font class="comment">// ok, now compute to set : the set of bank to load, and the set of banks to unload.</font>
00465                 std::set&lt;std::string&gt;   noChange;
00466                 std::set_intersection(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.begin(), <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.end(), newBanks.begin(), newBanks.end(), std::inserter(noChange, noChange.end()));
00467 
00468                 std::set&lt;std::string&gt;   loadList; 
00469                 std::set_difference(newBanks.begin(), newBanks.end(), noChange.begin(), noChange.end(), std::inserter(loadList, loadList.end()));
00470 
00471                 std::set&lt;std::string&gt;   unloadList;
00472                 std::set_difference(<a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.begin(), <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.end(), newBanks.begin(), newBanks.end(), std::inserter(unloadList, unloadList.end()));
00473 
00474                 <font class="comment">// and now, load and unload....</font>
00475                 {
00476                         std::set&lt;std::string&gt;::iterator first(loadList.begin()), last(loadList.end());
00477                         <font class="keywordflow">for</font> (; first != last; ++first)
00478                         {
00479                                 mixer-&gt;loadSampleBank(<font class="keyword">true</font>, *first);
00480                         }
00481                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.insert(loadList.begin(), loadList.end());
00482                 }
00483                 {
00484                         std::set&lt;std::string&gt;::iterator first(unloadList.begin()), last(unloadList.end());
00485                         <font class="keywordflow">for</font> (; first != last; ++first)
00486                         {
00487                                 <font class="keywordflow">if</font> (mixer-&gt;unloadSampleBank(*first))
00488                                 {
00489                                         <font class="comment">// ok, the bank is unloaded</font>
00490                                         <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z961_1">_LoadedBanks</a>.erase(*first);
00491                                 }
00492                         }
00493                 }
00494         }
00495 
00496         <font class="comment">// Apply the same algo for each sound layer.</font>
00497         <font class="keywordflow">for</font> (uint i=0; i&lt;<a class="code" href="namespaceNLSOUND.html#a18">BACKGROUND_LAYER</a>; ++i)
00498         {
00499                 vector&lt;TSoundData&gt; &amp;layer = <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#z962_0">_Layers</a>[i];
00500                 vector&lt;uint&gt; selectedIndex;
00501                 vector&lt;uint&gt; leaveIndex;
00502 
00503                 selectedIndex.reserve(layer.size());
00504                 leaveIndex.reserve(layer.size());
00505 
00506                 <font class="comment">// extract the list of selected/unselected box</font>
00507                 vector&lt;TSoundData&gt;::iterator first(layer.begin()), last(layer.end());
00508                 <font class="keywordflow">for</font> (uint count = 0; first != last; ++first, ++count)
00509                 {
00510                         <font class="keywordflow">if</font> (listener.x &gt;= first-&gt;MinBox.x &amp;&amp; listener.x &lt;= first-&gt;MaxBox.x
00511                                 &amp;&amp; listener.y &gt;= first-&gt;MinBox.y &amp;&amp; listener.y &lt;= first-&gt;MaxBox.y
00512 <font class="comment">//                              &amp;&amp; listener.z &gt;= first-&gt;MinBox.z &amp;&amp; listener.z &lt;= first-&gt;MaxBox.z</font>
00513                                 )
00514                         {
00515 <font class="comment">//                              nldebug("patat %u is selected by box (%s)", count, first-&gt;SoundName.c_str());</font>
00516                                 selectedIndex.push_back(count);
00517                         }
00518                         <font class="keywordflow">else</font>
00519                         {
00520 <font class="comment">//                              nldebug("patat %u is rejected  by box (%s)", count, first-&gt;SoundName.c_str());</font>
00521                                 <font class="comment">// listener out of this box.</font>
00522                                 <font class="keywordflow">if</font> (first-&gt;Selected &amp;&amp; first-&gt;Source != 0)
00523                                 {
00524                                         <font class="comment">// we leave this box.</font>
00525                                         leaveIndex.push_back(count);
00526                                 }
00527                         }
00528                 }
00529 
00530                 <font class="comment">// stop all the sound that are leaved.</font>
00531                 {
00532                         vector&lt;uint&gt;::iterator first(leaveIndex.begin()), last(leaveIndex.end());
00533                         <font class="keywordflow">for</font> (; first != last; ++first)
00534                         {
00535                                 TSoundData &amp;sd = layer[*first];
00536                                 sd.Selected = <font class="keyword">false</font>;
00537                                 <font class="keywordflow">if</font> (sd.Source-&gt;isPlaying())
00538                                         sd.Source-&gt;stop();
00539                         }
00540                 }
00541                 <font class="comment">// Compute new source mixing in this layer</font>
00542                 {
00544                         map&lt;float, TSoundStatus&gt;        status;
00545 
00546                         <font class="comment">// first loop to compute selected sound gain and position and order the result by surface..</font>
00547                         {
00548                                 vector&lt;uint&gt;::iterator first(selectedIndex.begin()), last(selectedIndex.end());
00549                                 <font class="keywordflow">for</font> (; first != last; ++first)
00550                                 {
00551                                         TSoundData &amp;sd = layer[*first];
00552                                         CVector pos;
00553                                         <font class="keywordtype">float</font>   gain;
00554                                         <font class="keywordtype">float</font>   distance;
00555 
00556                                         <font class="comment">// inside the patat ?</font>
00557                                         
00558                                         <font class="keywordflow">if</font>(CPrimZone::contains(listener, sd.Points, distance, pos, sd.IsPath))
00559                                         {
00560                                                 pos = <a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#o2">_LastPosition</a>;    <font class="comment">// use the real listener position, not the 0 z centered</font>
00561                                                 gain = 1.0f;
00562 <font class="comment">//                                              nlinfo ("inside patate %d name '%s' ", *first, sd.SoundName.c_str());</font>
00563                                         }
00564                                         <font class="keywordflow">else</font>
00565                                         {
00566                                                 <font class="keywordflow">if</font> (distance &lt; sd.MaxDist)
00567                                                 {
00568                                                         <font class="comment">// compute the gain.</font>
00569                                                         gain = (sd.MaxDist - distance) / sd.MaxDist;
00570                                                 }
00571                                                 <font class="keywordflow">else</font>
00572                                                 {
00573                                                         <font class="comment">// too far</font>
00574                                                         gain = 0;
00575                                                 }
00576                                                 <font class="comment">//nlinfo ("near patate %d name '%s' from %f ", *first, sd.SoundName.c_str(), distance);</font>
00577                                         }
00578 
00579                                         <font class="comment">// store the status.</font>
00580                                         status.insert(make_pair(sd.Surface, TSoundStatus(sd, pos, gain, distance)));
00581                                 }
00582                         }
00583                         <font class="comment">// second loop thrue the surface ordered selected sound.</font>
00584                         {
00585                                 <font class="comment">// Sound mixing strategie :</font>
00586                                 <font class="comment">// The smallest zone sound mask bigger one</font>
00587 
00588                                 <font class="keywordtype">float</font>   maskFactor = 1.0f;
00589 
00590                                 map&lt;float, TSoundStatus&gt;::iterator first(status.begin()), last(status.end());
00591                                 <font class="keywordflow">for</font> (; first != last; ++first)
00592                                 {
00593                                         TSoundStatus &amp;ss = first-&gt;second;
00594 
00595                                         <font class="keywordflow">if</font> (maskFactor &gt; 0.0f &amp;&amp; ss.Gain &gt; 0)
00596                                         {
00597                                                 <font class="keywordtype">float</font> gain = maskFactor * ss.Gain;
00598 <font class="comment">//                                              maskFactor -= ss.Gain;</font>
00599 
00600                                                 ss.SoundData.Selected = <font class="keyword">true</font>;
00601 
00602                                                 <font class="keywordflow">if</font> (ss.Gain == 1)
00603                                                 {
00604                                                         <font class="comment">// inside a pattate, then decrease the mask factor will we are more inside the patate</font>
00605                                                         maskFactor -= first-&gt;second.Distance / <a class="code" href="namespaceNLSOUND.html#a17">INSIDE_FALLOF</a>;
00606                                                         <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(maskFactor, 0.0f, 1.0f);
00607                                                 }
00608 
00609                                                 <font class="comment">// start the soond (if needed) and update the volume.</font>
00610 
00611                                                 <font class="keywordflow">if</font> (ss.SoundData.Source == 0)
00612                                                 {
00613                                                         <font class="comment">// try to create the source.</font>
00614                                                         ss.SoundData.Source = mixer-&gt;createSource(ss.SoundData.Sound, <font class="keyword">false</font>);
00615                                                 }
00616                                                 <font class="keywordflow">if</font> (ss.SoundData.Source != 0)
00617                                                 {
00618                                                         <font class="comment">// set the volume</font>
00619                                                         ss.SoundData.Source-&gt;setRelativeGain(gain);
00620                                                         <font class="comment">// and the position</font>
00621                                                         ss.Position.z += 5.0f;
00622                                                         ss.SoundData.Source-&gt;setPos(ss.Position);
00623 
00624 <font class="comment">//                                                      nldebug("Setting source %s at %f", ss.SoundData.SoundName.c_str(), gain);</font>
00625                                                         <font class="keywordflow">if</font> (!ss.SoundData.Source-&gt;isPlaying())
00626                                                         {
00627                                                                 <font class="comment">// start the sound is needed.</font>
00628                                                                 ss.SoundData.Source-&gt;play();
00629                                                         }
00630                                                 }
00631                                         }
00632                                         <font class="keywordflow">else</font> <font class="keywordflow">if</font> (ss.SoundData.Source != 0 &amp;&amp; ss.SoundData.Source-&gt;isPlaying())
00633                                         {
00634                                                 <font class="comment">// stop this too far source.</font>
00635                                                 ss.SoundData.Source-&gt;stop();
00636                                         }
00637                                 }
00638                         } 
00639                 } <font class="comment">// compute source mixing</font>
00640         } <font class="comment">// for each layer</font>
00641 }
00642 
00643 <font class="comment">/*</font>
00644 <font class="comment">void CBackgroundSoundManager::update ()</font>
00645 <font class="comment">{</font>
00646 <font class="comment"></font>
00647 <font class="comment">}</font>
00648 <font class="comment">*/</font>
00649 <font class="comment">/*</font>
00650 <font class="comment">uint32 CBackgroundSoundManager::getZoneNumber ()</font>
00651 <font class="comment">{</font>
00652 <font class="comment">//      return BackgroundSounds.size();</font>
00653 <font class="comment">        return 0;</font>
00654 <font class="comment">}</font>
00655 <font class="comment">*/</font>
00656 <font class="comment">/*</font>
00657 <font class="comment">const vector&lt;CVector&gt; &amp;CBackgroundSoundManager::getZone(uint32 zone)</font>
00658 <font class="comment">{</font>
00659 <font class="comment">//      nlassert (zone&lt; BackgroundSounds.size());</font>
00660 <font class="comment">//      return BackgroundSounds[zone].Points;</font>
00661 <font class="comment">        static vector&lt;CVector&gt; v;</font>
00662 <font class="comment">        return v;</font>
00663 <font class="comment">}</font>
00664 <font class="comment">*/</font>
<a name="l00665"></a><a class="code" href="classNLSOUND_1_1CBackgroundSoundManager.html#a10">00665</a> CVector CBackgroundSoundManager::getZoneSourcePos(uint32 zone)
00666 {
00667 <font class="comment">/*      nlassert (zone&lt; BackgroundSounds.size());</font>
00668 <font class="comment">        CVector pos;</font>
00669 <font class="comment">        if (BackgroundSounds[zone].SourceDay != NULL)</font>
00670 <font class="comment">                BackgroundSounds[zone].SourceDay-&gt;getPos(pos);</font>
00671 <font class="comment">        return pos;</font>
00672 <font class="comment">*/</font>
00673         <font class="keywordflow">return</font> CVector();
00674 }
00675 
00676 
00677 <font class="comment">/*</font>
00678 <font class="comment">void CBackgroundSoundManager::setDayNightRatio(float ratio)</font>
00679 <font class="comment">{</font>
00680 <font class="comment">        // 0 is day</font>
00681 <font class="comment">        // 1 is night</font>
00682 <font class="comment"></font>
00683 <font class="comment">        nlassert (ratio&gt;=0.0f &amp;&amp; ratio&lt;=1.0f);</font>
00684 <font class="comment"></font>
00685 <font class="comment">        if (OldRatio == ratio)</font>
00686 <font class="comment">                return;</font>
00687 <font class="comment">        else</font>
00688 <font class="comment">                OldRatio = ratio;</font>
00689 <font class="comment"></font>
00690 <font class="comment"></font>
00691 <font class="comment">        // recompute all source volume</font>
00692 <font class="comment"></font>
00693 <font class="comment">        for (uint i = 0; i &lt; BackgroundSounds.size(); i++)</font>
00694 <font class="comment">        {</font>
00695 <font class="comment">                if(ratio == 0.0f)</font>
00696 <font class="comment">                {</font>
00697 <font class="comment">                        if(BackgroundSounds[i].SourceDay != NULL)</font>
00698 <font class="comment">                        {</font>
00699 <font class="comment">                                BackgroundSounds[i].SourceDay-&gt;setRelativeGain(1.0f);</font>
00700 <font class="comment"></font>
00701 <font class="comment">                                if (!BackgroundSounds[i].SourceDay-&gt;isPlaying())</font>
00702 <font class="comment">                                        BackgroundSounds[i].SourceDay-&gt;play();</font>
00703 <font class="comment">                        }</font>
00704 <font class="comment">                        </font>
00705 <font class="comment">                        if(BackgroundSounds[i].SourceNight != NULL)</font>
00706 <font class="comment">                        {</font>
00707 <font class="comment">                                if (BackgroundSounds[i].SourceNight-&gt;isPlaying())</font>
00708 <font class="comment">                                        BackgroundSounds[i].SourceNight-&gt;stop();</font>
00709 <font class="comment">                        }</font>
00710 <font class="comment">                }</font>
00711 <font class="comment">                else if (ratio == 1.0f)</font>
00712 <font class="comment">                {</font>
00713 <font class="comment">                        if(BackgroundSounds[i].SourceDay != NULL)</font>
00714 <font class="comment">                        {</font>
00715 <font class="comment">                                if (BackgroundSounds[i].SourceDay-&gt;isPlaying())</font>
00716 <font class="comment">                                        BackgroundSounds[i].SourceDay-&gt;stop();</font>
00717 <font class="comment">                        }</font>
00718 <font class="comment"></font>
00719 <font class="comment">                        if(BackgroundSounds[i].SourceNight != NULL)</font>
00720 <font class="comment">                        {</font>
00721 <font class="comment">                                BackgroundSounds[i].SourceNight-&gt;setRelativeGain(1.0f);</font>
00722 <font class="comment"></font>
00723 <font class="comment">                                if (!BackgroundSounds[i].SourceNight-&gt;isPlaying())</font>
00724 <font class="comment">                                        BackgroundSounds[i].SourceNight-&gt;play();</font>
00725 <font class="comment">                        }</font>
00726 <font class="comment">                }</font>
00727 <font class="comment">                else</font>
00728 <font class="comment">                {</font>
00729 <font class="comment">                        if(BackgroundSounds[i].SourceDay != NULL)</font>
00730 <font class="comment">                        {</font>
00731 <font class="comment">                                BackgroundSounds[i].SourceDay-&gt;setRelativeGain((1.0f-ratio));</font>
00732 <font class="comment"></font>
00733 <font class="comment">                                if (!BackgroundSounds[i].SourceDay-&gt;isPlaying())</font>
00734 <font class="comment">                                        BackgroundSounds[i].SourceDay-&gt;play();</font>
00735 <font class="comment">                        }</font>
00736 <font class="comment"></font>
00737 <font class="comment">                        if(BackgroundSounds[i].SourceNight != NULL)</font>
00738 <font class="comment">                        {</font>
00739 <font class="comment">                                BackgroundSounds[i].SourceNight-&gt;setRelativeGain(ratio);</font>
00740 <font class="comment"></font>
00741 <font class="comment">                                if (!BackgroundSounds[i].SourceNight-&gt;isPlaying())</font>
00742 <font class="comment">                                        BackgroundSounds[i].SourceNight-&gt;play();</font>
00743 <font class="comment">                        }</font>
00744 <font class="comment">                }</font>
00745 <font class="comment">        }</font>
00746 <font class="comment"></font>
00747 <font class="comment">}</font>
00748 <font class="comment">*/</font>
00749 } <font class="comment">// NLSOUND</font>
00750 
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