- Added support for Blood's ambient sounds, because I thought it would be an easy way to

test the new ambient sound range parameters. (Hahaha! If I hadn't had to fix all the
  Build/Blood stuff first, it would have been.)

SVN r2223 (trunk)

src/w_wad.cpp

@@ -967,6 +967,24 @@ int FWadCollection::GetLumpNamespace (int lump) const
 		return LumpInfo[lump].lump->Namespace;
 }
 
+//==========================================================================
+//
+// FWadCollection :: GetLumpIndexNum
+//
+// Returns the index number for this lump. This is *not* the lump's position
+// in the lump directory, but rather a special value that RFF can associate
+// with files. Other archive types will return 0, since they don't have it.
+//
+//==========================================================================
+
+int FWadCollection::GetLumpIndexNum(int lump) const
+{
+	if ((size_t)lump >= NumLumps)
+		return 0;
+	else
+		return LumpInfo[lump].lump->GetIndexNum();
+}
+
 //==========================================================================
 //
 // W_GetLumpFile