make delay independent from speed, document meaning of both

1 files changed, 6 insertions, 0 deletions

diff --git a/src/display.h b/src/display.h
index 1bf5758..aac64dd 100644
--- a/src/display.h
+++ b/src/display.h
@@ -102,6 +102,12 @@ class Display {
 		uint8_t need_update;
 
 		/**
+		 * Number of frames after which update() is called. This value
+		 * holds either the current animation's speed or its delay.
+		 */
+		uint8_t update_threshold;
+
+		/**
 		 * The currently active column in multiplex()
 		 */
 		uint8_t active_col;