core_data.cpp: add function to play sounds

This function can be used to pass different arguments to it, so the
other play sfx functions (below it) can be removed.

(#63)

source/glest_game/global/core_data.cpp

@@ -722,6 +722,32 @@ namespace Glest
 
       return &clickSoundC;
     }
+
+    StaticSound *CoreData::getSound (const std::string& iniPlaySoundVal)
+    {
+      int loadAttemptLookupKey = tsyst_COUNT + 6;
+      if (itemLoadAttempted.find (loadAttemptLookupKey) ==
+          itemLoadAttempted.end ())
+      {
+
+        itemLoadAttempted[loadAttemptLookupKey] = true;
+
+        try
+        {
+          static Config & config = Config::getInstance ();
+          iniPlaySound.load (config.getString (iniPlaySoundVal, ""));
+        }
+        catch (const megaglest_runtime_error & ex)
+        {
+          message (ex.what (),
+                   GlobalStaticFlags::getIsNonGraphicalModeEnabled (),
+                   tempDataLocation);
+        }
+      }
+
+      return &iniPlaySound;
+    }
+
     StaticSound *CoreData::getAttentionSound ()
     {
       int loadAttemptLookupKey = tsyst_COUNT + 6;

source/glest_game/global/core_data.h

@@ -66,6 +66,7 @@ namespace Glest
       StaticSound clickSoundA;
       StaticSound clickSoundB;
       StaticSound clickSoundC;
+      StaticSound iniPlaySound;
       StaticSound attentionSound;
       StaticSound newServerSound;
       StaticSound highlightSound;
@@ -212,6 +213,7 @@ namespace Glest
       StaticSound *getClickSoundA ();
       StaticSound *getClickSoundB ();
       StaticSound *getClickSoundC ();
+      StaticSound *getSound (const std::string& iniPlaySoundVal);
       StaticSound *getAttentionSound ();
       StaticSound *getNewServerSound ();
       StaticSound *getHighlightSound ();