-// ambient_sound.cpp basti_
-//
// SuperTux
+// Copyright (C) 2006 Matthias Braun <matze@braunis.de>
//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation; either version 2
-// of the License, or (at your option) any later version.
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-//
+//
// You should have received a copy of the GNU General Public License
-// along with this program; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
-// 02111-1307, USA.
-#include <config.h>
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+#include <limits>
#include <math.h>
-#include "ambient_sound.h"
-#include "object_factory.h"
-#include "lisp/lisp.h"
-#include "sector.h"
-
-AmbientSound::AmbientSound(const lisp::Lisp& lisp)
+#include "audio/sound_manager.hpp"
+#include "audio/sound_source.hpp"
+#include "object/ambient_sound.hpp"
+#include "object/camera.hpp"
+#include "scripting/squirrel_util.hpp"
+#include "supertux/object_factory.hpp"
+#include "supertux/sector.hpp"
+#include "util/reader.hpp"
+
+AmbientSound::AmbientSound(const Reader& lisp) :
+ name(""),
+ position(),
+ dimension(),
+ sample(""),
+ sound_source(),
+ latency(),
+ distance_factor(),
+ distance_bias(),
+ silence_distance(),
+ maximumvolume(),
+ targetvolume(),
+ currentvolume(),
+ volume_ptr()
{
+ position.x = 0;
+ position.y = 0;
- position.x=0;
- position.y=0;
-
- dimension.x=0;
- dimension.y=0;
+ dimension.x = 0;
+ dimension.y = 0;
- distance_factor=0;
- distance_bias=0;
- maximumvolume=1;
- sample="";
+ distance_factor = 0;
+ distance_bias = 0;
+ maximumvolume = 1;
+ currentvolume = 0;
if (!(lisp.get("x", position.x)&&lisp.get("y", position.y))) {
- std::cerr << "No Position in ambient_sound" << std::endl;
+ 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);
- playing=-1; // not playing at the beginning
+ sound_source.reset(); // not playing at the beginning
+ SoundManager::current()->preload(sample);
latency=0;
}
-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) :
+ name(),
+ position(),
+ dimension(),
+ sample(file),
+ sound_source(),
+ latency(),
+ distance_factor(),
+ distance_bias(),
+ silence_distance(),
+ maximumvolume(),
+ targetvolume(),
+ currentvolume(),
+ volume_ptr()
{
-
position.x=pos.x;
position.y=pos.y;
distance_factor=factor*factor;
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;
- playing=-1; // not playing at the beginning
+ sound_source = 0; // not playing at the beginning
+ SoundManager::current()->preload(sample);
latency=0;
}
-AmbientSound::~AmbientSound() {
+AmbientSound::~AmbientSound()
+{
stop_playing();
}
}
void
-AmbientSound::stop_playing() {
- if (playing>=0) {
- Mix_HaltChannel(playing);
- playing=-1;
- }
+AmbientSound::stop_playing()
+{
+ sound_source.reset();
}
void
AmbientSound::start_playing()
{
- playing=sound_manager->play_sound(sample,-1);
- Mix_Volume(playing,0);
- currentvolume=targetvolume=1e-20;
+ try {
+ sound_source = SoundManager::current()->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-20f;
+ sound_source->play();
+ } catch(std::exception& e) {
+ log_warning << "Couldn't play '" << sample << "': " << e.what() << "" << std::endl;
+ sound_source.reset();
+ remove_me();
+ }
}
void
-AmbientSound::update(float deltat)
+AmbientSound::update(float deltat)
{
- if (latency--<=0) {
-
+ if (latency-- <= 0) {
float px,py;
float rx,ry;
- // Player position
-
- px=Sector::current()->player->get_pos().x;
- py=Sector::current()->player->get_pos().y;
+ if (!Sector::current() || !Sector::current()->camera) return;
+ // Camera position
+ px=Sector::current()->camera->get_center().x;
+ py=Sector::current()->camera->get_center().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);
// calculate square of distance
-
float sqrdistance=(px-rx)*(px-rx)+(py-ry)*(py-ry);
-
sqrdistance-=distance_bias;
// inside the bias: full volume (distance 0)
-
if (sqrdistance<0)
sqrdistance=0;
-
- // calculate target volume - will never become 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 (playing>=0) {
+ if (sound_source != 0) {
// set the volume
- Mix_Volume(playing,(int)(currentvolume*maximumvolume*MIX_MAX_VOLUME));
+ 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* _this = static_cast<scripting::AmbientSound*> (this);
+ expose_object(vm, table_idx, _this, 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");
+/* EOF */
projects / supertux.git / blobdiff