X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fobject%2Fambient_sound.cpp;h=8837f91d1da583472ca16786c5dcd851cfde2527;hb=75acd4b141f45e851a492f089aa9ad24a9552409;hp=bec0d9cfe654365028ddead5521a769366535f2e;hpb=b4d61788c3766a02d1e30866852cfb1ac2d557a6;p=supertux.git

diff --git a/src/object/ambient_sound.cpp b/src/object/ambient_sound.cpp
index bec0d9cfe..8837f91d1 100644
--- a/src/object/ambient_sound.cpp
+++ b/src/object/ambient_sound.cpp
@@ -1,6 +1,7 @@
-// ambient_sound.cpp   basti_
+//  $Id$
 //
 //  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
@@ -11,38 +12,48 @@
 //  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.
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
 #include <config.h>
 
 #include <math.h>
-
-#include "ambient_sound.h"
-#include "object_factory.h"
-#include "lisp/lisp.h"
-#include "sector.h"
+#include <stdexcept>
+#include <iostream>
+#include <limits>
+
+#include "ambient_sound.hpp"
+#include "object_factory.hpp"
+#include "lisp/lisp.hpp"
+#include "sector.hpp"
+#include "audio/sound_manager.hpp"
+#include "audio/sound_source.hpp"
+#include "log.hpp"
+#include "scripting/squirrel_util.hpp"
+#include "object/camera.hpp"
 
 AmbientSound::AmbientSound(const lisp::Lisp& lisp)
 {
+  name="";
+  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;
+  sample = "";
+  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);
 
@@ -51,6 +62,13 @@ AmbientSound::AmbientSound(const lisp::Lisp& lisp)
   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;
+  }
+
   // square all distances (saves us a sqrt later)
 
   distance_bias*=distance_bias;
@@ -59,13 +77,39 @@ AmbientSound::AmbientSound(const lisp::Lisp& lisp)
   // 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 = 0; // not playing at the beginning
+  sound_manager->preload(sample);
+  latency=0;
+}
+
+AmbientSound::AmbientSound(Vector pos, float factor, float bias, float vol, std::string file)
+{
+  position.x=pos.x;
+  position.y=pos.y;
+
+  dimension.x=0;
+  dimension.y=0;
+
+  distance_factor=factor*factor;
+  distance_bias=bias*bias;
+  maximumvolume=vol;
+  sample=file;
+
+  // set default silence_distance
+
+  if (distance_factor == 0)
+          silence_distance = std::numeric_limits<float>::max();
+  else
+    silence_distance = 1/distance_factor;
+
+  sound_source = 0; // not playing at the beginning
+  sound_manager->preload(sample);
   latency=0;
 }
 
@@ -80,80 +124,82 @@ AmbientSound::hit(Player& )
 
 void
 AmbientSound::stop_playing() {
-  if (playing>=0) {
-    Mix_HaltChannel(playing);
-    playing=-1;
-  }
+  delete sound_source;
+  sound_source = 0;
 }
 
 void
 AmbientSound::start_playing()
 {
-  playing=sound_manager->play_sound(sample,-1);
-  Mix_Volume(playing,0);
-  currentvolume=targetvolume=1e-20;
+  try {
+    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-20f;
+    sound_source->play();
+  } catch(std::exception& e) {
+    log_warning << "Couldn't play '" << sample << "': " << e.what() << "" << std::endl;
+    delete sound_source;
+    sound_source = 0;
+    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
 
@@ -162,8 +208,40 @@ AmbientSound::update(float deltat)
 }
 
 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");