#include <math.h>
#include <stdexcept>
#include <iostream>
+#include <limits>
#include "ambient_sound.hpp"
#include "object_factory.hpp"
#include "audio/sound_manager.hpp"
#include "audio/sound_source.hpp"
#include "log.hpp"
+#include "scripting/squirrel_util.hpp"
AmbientSound::AmbientSound(const lisp::Lisp& lisp)
{
+ name="";
position.x = 0;
position.y = 0;
log_warning << "No Position in ambient_sound" << std::endl;
}
+ lisp.get("name" , name);
lisp.get("width" , dimension.x);
lisp.get("height", dimension.y);
lisp.get("volume" ,maximumvolume );
// set dimension to zero if smaller than 64, which is default size in flexlay
-
+
if ((dimension.x <= 64) || (dimension.y <= 64)) {
dimension.x = 0;
dimension.y = 0;
}
-
+
// square all distances (saves us a sqrt later)
distance_bias*=distance_bias;
// set default silence_distance
if (distance_factor == 0)
- silence_distance = 10e99;
+ silence_distance = std::numeric_limits<float>::max();
else
silence_distance = 1/distance_factor;
-
+
lisp.get("silence_distance",silence_distance);
sound_source = 0; // not playing at the beginning
distance_bias=bias*bias;
maximumvolume=vol;
sample=file;
-
+
// set default silence_distance
if (distance_factor == 0)
- silence_distance = 10e99;
+ silence_distance = std::numeric_limits<float>::max();
else
silence_distance = 1/distance_factor;
sound_source = sound_manager->create_sound_source(sample);
if(!sound_source)
throw std::runtime_error("file not found");
-
+
sound_source->set_gain(0);
sound_source->set_looping(true);
- currentvolume=targetvolume=1e-20;
+ currentvolume=targetvolume=1e-20f;
sound_source->play();
} catch(std::exception& e) {
log_warning << "Couldn't play '" << sample << "': " << e.what() << "" << std::endl;
}
void
-AmbientSound::update(float deltat)
-{
+AmbientSound::update(float deltat)
+{
if (latency-- <= 0) {
float px,py;
float rx,ry;
// inside the bias: full volume (distance 0)
if (sqrdistance<0)
sqrdistance=0;
-
+
// calculate target volume - will never become 0
targetvolume=1/(1+sqrdistance*distance_factor);
float rise=targetvolume/currentvolume;
// rise/fall half life?
currentvolume*=pow(rise,deltat*10);
- currentvolume += 1e-6; // volume is at least 1e-6 (0 would never rise)
+ currentvolume += 1e-6f; // volume is at least 1e-6 (0 would never rise)
if (sound_source != 0) {
latency=(int)(0.001/distance_factor);
//(int)(10*((sqrdistance-silence_distance)/silence_distance));
}
- }
+ }
// heuristically measured "good" latency maximum
}
void
-AmbientSound::draw(DrawingContext &)
+AmbientSound::draw(DrawingContext &)
+{
+}
+
+void
+AmbientSound::expose(HSQUIRRELVM vm, SQInteger table_idx)
+{
+ Scripting::AmbientSound* interface = static_cast<Scripting::AmbientSound*> (this);
+ expose_object(vm, table_idx, interface, name, false);
+}
+
+void
+AmbientSound::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
+{
+ Scripting::unexpose_object(vm, table_idx, name);
+}
+
+void
+AmbientSound::set_pos(float x, float y)
+{
+ position.x = x;
+ position.y = y;
+}
+
+float
+AmbientSound::get_pos_x() const
+{
+ return position.x;
+}
+
+float
+AmbientSound::get_pos_y() const
{
+ return position.y;
}
IMPLEMENT_FACTORY(AmbientSound, "ambient_sound");