No background "music" shading in Urban Runner

svn-id: r35373

3 files changed, 20 insertions, 1 deletions

diff --git a/engines/gob/sound/bgatmosphere.cpp b/engines/gob/sound/bgatmosphere.cpp
index f5a7fe0fdb..12ceb031b7 100644
--- a/engines/gob/sound/bgatmosphere.cpp
+++ b/engines/gob/sound/bgatmosphere.cpp
@@ -36,6 +36,7 @@ BackgroundAtmosphere::BackgroundAtmosphere(Audio::Mixer &mixer) :
 	_playMode = kPlayModeLinear;
 	_queuePos = -1;
 	_shaded = false;
+	_shadable = true;
 
 	g_system->getEventManager()->registerRandomSource(_rnd, "gobBA");
 }
@@ -115,12 +116,26 @@ void BackgroundAtmosphere::getNextQueuePos() {
 	}
 }
 
+void BackgroundAtmosphere::setShadable(bool shadable) {
+	if (!shadable) {
+		unshade();
+		_shadable = false;
+	} else
+		_shadable = true;
+}
+
 void BackgroundAtmosphere::shade() {
+	if (!_shadable)
+		return;
+
 	_shaded = true;
 	_fadeVol = 32768;
 }
 
 void BackgroundAtmosphere::unshade() {
+	if (!_shadable)
+		return;
+
 	_shaded = false;
 	_fadeVol = 65536;
 }
diff --git a/engines/gob/sound/bgatmosphere.h b/engines/gob/sound/bgatmosphere.h
index 72b5614282..3fa648b94d 100644
--- a/engines/gob/sound/bgatmosphere.h
+++ b/engines/gob/sound/bgatmosphere.h
@@ -52,6 +52,7 @@ public:
 	void queueSample(SoundDesc &sndDesc);
 	void queueClear();
 
+	void setShadable(bool shadable);
 	void shade();
 	void unshade();
 
@@ -61,6 +62,7 @@ private:
 	Common::Array<SoundDesc *> _queue;
 	int _queuePos;
 	bool _shaded;
+	bool _shadable;
 
 	Common::Mutex _mutex;
 
diff --git a/engines/gob/sound/sound.cpp b/engines/gob/sound/sound.cpp
index 5acc255275..4746bfa99a 100644
--- a/engines/gob/sound/sound.cpp
+++ b/engines/gob/sound/sound.cpp
@@ -50,8 +50,10 @@ Sound::Sound(GobEngine *vm) : _vm(vm) {
 		_cdrom = new CDROM;
 	if (_vm->getGameType() == kGameTypeWoodruff)
 		_bgatmos = new BackgroundAtmosphere(*_vm->_mixer);
-	if (_vm->getGameType() == kGameTypeUrban)
+	if (_vm->getGameType() == kGameTypeUrban) {
 		_bgatmos = new BackgroundAtmosphere(*_vm->_mixer);
+		_bgatmos->setShadable(false);
+	}
 }
 
 Sound::~Sound() {