#include "log.hpp"
#include "scripting/squirrel_util.hpp"
-AmbientSound::AmbientSound(const lisp::Lisp& lisp)
+AmbientSound::AmbientSound(const lisp::Lisp& lisp) :
+ MovingObject(lisp), sample(""), sound_source(0), latency(0),
+ distance_factor(0), distance_bias(0), maximumvolume(1), currentvolume(0)
{
- name="";
- position.x = 0;
- position.y = 0;
-
- dimension.x = 0;
- dimension.y = 0;
-
- distance_factor = 0;
- distance_bias = 0;
- maximumvolume = 1;
- sample = "";
- currentvolume = 0;
-
- if (!(lisp.get("x", position.x)&&lisp.get("y", position.y))) {
- 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("distance_factor",distance_factor);
lisp.get("distance_bias" ,distance_bias );
lisp.get("sample" ,sample );
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;
+
+ if ((get_width() <= 64) || (get_height() <= 64)) {
+ set_size(0, 0);
}
-
+
// square all distances (saves us a sqrt later)
distance_bias*=distance_bias;
silence_distance = 10e99;
else
silence_distance = 1/distance_factor;
-
- lisp.get("silence_distance",silence_distance);
- sound_source = 0; // not playing at the beginning
- latency=0;
+ lisp.get("silence_distance",silence_distance);
}
-AmbientSound::AmbientSound(Vector pos, float factor, float bias, float vol, std::string file)
+AmbientSound::AmbientSound(Vector pos, float factor, float bias, float vol, std::string file) :
+ sample(file), sound_source(0), latency(0), distance_factor(factor*factor),
+ distance_bias(bias*bias), maximumvolume(vol), currentvolume(0)
{
- position.x=pos.x;
- position.y=pos.y;
-
- dimension.x=0;
- dimension.y=0;
+ bbox.p1 = pos;
+ bbox.p2 = pos;
- distance_factor=factor*factor;
- distance_bias=bias*bias;
- maximumvolume=vol;
- sample=file;
-
// set default silence_distance
if (distance_factor == 0)
silence_distance = 10e99;
else
silence_distance = 1/distance_factor;
-
- sound_source = 0; // not playing at the beginning
- latency=0;
}
AmbientSound::~AmbientSound() {
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;
}
void
-AmbientSound::update(float deltat)
-{
+AmbientSound::update(float deltat)
+{
if (latency-- <= 0) {
float px,py;
float rx,ry;
py=Sector::current()->player->get_pos().y;
// Relate to which point in the area
- rx=px<position.x?position.x:
- (px<position.x+dimension.x?px:position.x+dimension.x);
- ry=py<position.y?position.y:
- (py<position.y+dimension.y?py:position.y+dimension.y);
+ rx=px<bbox.p1.x?bbox.p1.x:
+ (px<bbox.p2.x?px:bbox.p2.x);
+ ry=py<bbox.p1.y?bbox.p1.y:
+ (py<bbox.p2.y?py:bbox.p2.y);
// calculate square of distance
float sqrdistance=(px-rx)*(px-rx)+(py-ry)*(py-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;
sound_source->set_gain(currentvolume*maximumvolume);
if (sqrdistance>=silence_distance && currentvolume<1e-3)
- stop_playing();
+ stop_playing();
latency=0;
} else {
if (sqrdistance<silence_distance) {
- start_playing();
- latency=0;
+ start_playing();
+ latency=0;
}
else // set a reasonable latency
- latency=(int)(0.001/distance_factor);
+ 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);
+ if(name.empty()) return;
+ expose_object(vm, table_idx, dynamic_cast<Scripting::AmbientSound *>(this), name, false);
}
void
AmbientSound::unexpose(HSQUIRRELVM vm, SQInteger table_idx)
{
+ if(name.empty()) return;
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(){;
- return position.x;
-}
-
-float
-AmbientSound::get_pos_y(){
- return position.y;
-}
-
IMPLEMENT_FACTORY(AmbientSound, "ambient_sound");