1 files changed, 6 insertions, 0 deletions
diff --git a/src/text.h b/src/text.h
index b8f15757..70dfa3a6 100644
--- a/src/text.h
+++ b/src/text.h
@@ -91,6 +91,12 @@ public:
 		return _z_position;
 	}
 
+	struct VariableZPosition
+	{
+		float position;
+		int64_t duration;
+	};
+
 	Time fade_up_time () const {
 		return _fade_up_time;
 	}