Set to default distance attenuation function but change the parameters a but for...

[simgear.git] / simgear / sound / xmlsound.cxx

diff --git a/simgear/sound/xmlsound.cxx b/simgear/sound/xmlsound.cxx
index 54f3e4b1bcca7c0ed76c2e2cc7d5a2bf63aabd7e..479e312361d34c7bd631e1266a7034f6f2cf4a0a 100644 (file)
--- a/simgear/sound/xmlsound.cxx
+++ b/simgear/sound/xmlsound.cxx
@@ -41,8 +41,8 @@
 static double _snd_inv(double v)   { return (v == 0) ? 1e99 : 1/v; }
 static double _snd_abs(double v)   { return (v >= 0) ? v : -v; }
 static double _snd_sqrt(double v)  { return sqrt(fabs(v)); }
-static double _snd_log10(double v) { return log10(fabs(v)); }
-static double _snd_log(double v)   { return log(fabs(v)); }
+static double _snd_log10(double v) { return log10(fabs(v)+1e-9); }
+static double _snd_log(double v)   { return log(fabs(v)+1e-9); }
 // static double _snd_sqr(double v)   { return v*v; }
 // static double _snd_pow3(double v)  { return v*v*v; }
 
@@ -82,7 +82,8 @@ SGXmlSound::~SGXmlSound()
 
 void
 SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node,
-                 SGSampleGroup *sgrp, const string &path)
+                 SGSampleGroup *sgrp, SGSampleGroup *avionics,
+                 const string &path)
 {
 
    //
@@ -101,11 +102,13 @@ SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node,
 
    } else {
       _mode = SGXmlSound::ONCE;
-
-      if ( strcmp(mode_str, "") )
-         SG_LOG(SG_GENERAL,SG_INFO, "Unknown sound mode for '" << _name << "', default to 'once'");
    }
 
+   bool is_avionics = false;
+   const char *type_str = node->getStringValue("type", "fx");
+   if ( !strcmp(type_str, "avionics") )
+      is_avionics = true;
+
    _property = root->getNode(node->getStringValue("property", ""), true);
    SGPropertyNode *condition = node->getChild("condition");
    if (condition != NULL)
@@ -171,9 +174,10 @@ SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node,
 
    }
 
-   float reference_dist = node->getDoubleValue("reference-dist", 50.0);
-   float max_dist = node->getDoubleValue("max-dist", 3000.0);
- 
+   // rule of thumb: make reference distance a 100th of the maximum distance.
+   float reference_dist = node->getDoubleValue("reference-dist", 60.0);
+   float max_dist = node->getDoubleValue("max-dist", 6000.0);
+
    //
    // set pitch properties
    //
@@ -232,32 +236,36 @@ SGXmlSound::init(SGPropertyNode *root, SGPropertyNode *node,
    SGVec3f offset_pos = SGVec3f::zeros();
    SGPropertyNode_ptr prop = node->getChild("position");
    if ( prop != NULL ) {
-       offset_pos[0] = prop->getDoubleValue("x", 0.0);
+       offset_pos[0] = -prop->getDoubleValue("x", 0.0);
        offset_pos[1] = -prop->getDoubleValue("y", 0.0);
-       offset_pos[2] = prop->getDoubleValue("z", 0.0);
+       offset_pos[2] = -prop->getDoubleValue("z", 0.0);
    }
 
    //
    // Orientation
    //
-   SGVec3d dir = SGVec3d::zeros();
+   SGVec3f dir = SGVec3f::zeros();
    float inner = 360.0;
    float outer = 360.0;
-   float outer_gain = 0.0;;
+   float outer_gain = 0.0;
    prop = node->getChild("orientation");
    if ( prop != NULL ) {
-      dir = SGVec3d(-prop->getDoubleValue("x", 0.0),
-                    -prop->getDoubleValue("y", 0.0),
-                    -prop->getDoubleValue("z", 0.0));
-      inner = prop->getDoubleValue("inner-angle", 360.0);
-      outer = prop->getDoubleValue("outer-angle", 360.0);
-      outer_gain = prop->getDoubleValue("outer-gain", 0.0);
+      dir = SGVec3f(-prop->getFloatValue("x", 0.0),
+                    -prop->getFloatValue("y", 0.0),
+                    -prop->getFloatValue("z", 0.0));
+      inner = prop->getFloatValue("inner-angle", 360.0);
+      outer = prop->getFloatValue("outer-angle", 360.0);
+      outer_gain = prop->getFloatValue("outer-gain", 0.0);
    }
 
    //
    // Initialize the sample
    //
-   _sgrp = sgrp;
+   if (is_avionics) {
+      _sgrp = avionics;
+   } else {
+      _sgrp = sgrp;
+   }
    _sample = new SGSoundSample( path.c_str(), node->getStringValue("path", ""));
    _sample->set_relative_position( offset_pos );
    _sample->set_direction( dir );