+char *getArtworkIdentifierForUserLevelSet(int type)
+{
+ char *classic_artwork_set = getClassicArtworkSet(type);
+
+ /* check for custom artwork configured in "levelinfo.conf" */
+ char *leveldir_artwork_set =
+ *LEVELDIR_ARTWORK_SET_PTR(leveldir_current, type);
+ boolean has_leveldir_artwork_set =
+ (leveldir_artwork_set != NULL && !strEqual(leveldir_artwork_set,
+ classic_artwork_set));
+
+ /* check for custom artwork in sub-directory "graphics" etc. */
+ TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
+ char *leveldir_identifier = leveldir_current->identifier;
+ boolean has_artwork_subdir =
+ (getTreeInfoFromIdentifier(artwork_first_node,
+ leveldir_identifier) != NULL);
+
+ return (has_leveldir_artwork_set ? leveldir_artwork_set :
+ has_artwork_subdir ? leveldir_identifier :
+ classic_artwork_set);
+}
+
+TreeInfo *getArtworkTreeInfoForUserLevelSet(int type)
+{
+ char *artwork_set = getArtworkIdentifierForUserLevelSet(type);
+ TreeInfo *artwork_first_node = ARTWORK_FIRST_NODE(artwork, type);
+
+ return getTreeInfoFromIdentifier(artwork_first_node, artwork_set);
+}
+
+boolean checkIfCustomArtworkExistsForCurrentLevelSet()
+{
+ char *graphics_set =
+ getArtworkIdentifierForUserLevelSet(ARTWORK_TYPE_GRAPHICS);
+ char *sounds_set =
+ getArtworkIdentifierForUserLevelSet(ARTWORK_TYPE_SOUNDS);
+ char *music_set =
+ getArtworkIdentifierForUserLevelSet(ARTWORK_TYPE_MUSIC);
+
+ return (!strEqual(graphics_set, GFX_CLASSIC_SUBDIR) ||
+ !strEqual(sounds_set, SND_CLASSIC_SUBDIR) ||
+ !strEqual(music_set, MUS_CLASSIC_SUBDIR));
+}
+