Added notification sound on receiving whisper

One of the sound channels is reserved for notification sounds, of which the
volume can be configured separately. Currently, the only notification sound
that is played is for receiving whispers. That can be extended later.

The newmessage.ogg sound used currently is the one for receiving a message
with the Psi instant messenger.

Parts of this patch are based on the new message notification in ManaPlus.

Reviewed-by: Erik Schilling

1 files changed, 9 insertions, 0 deletions

diff --git a/src/sound.h b/src/sound.h
index dd368f84..180bca62 100644
--- a/src/sound.h
+++ b/src/sound.h
@@ -92,6 +92,7 @@ class Sound
 
         void setMusicVolume(int volume);
         void setSfxVolume(int volume);
+        void setNotificationsVolume(int volume);
 
         /**
          * Plays a sound at the specified location.
@@ -103,6 +104,13 @@ class Sound
         void playSfx(const std::string &path, int x = 0, int y = 0);
 
         /**
+         * Plays a sound on the notification channel.
+         *
+         * @param path The resource path to the sound file.
+         */
+        void playNotification(const std::string &path);
+
+        /**
          * The sound logic.
          * Currently used to check whether the music file can be freed after
          * a fade out, and whether new music has to be played.
@@ -125,6 +133,7 @@ class Sound
         bool mInstalled;
 
         int mSfxVolume;
+        int mNotificationsVolume;
         int mMusicVolume;
 
         std::string mCurrentMusicFile;