Still working on my scrolling text and bug fixing.

include/dawn/display/animation/timeline.h

@@ -8,15 +8,24 @@
 #pragma once
 #include "../../libs.h"
 
-#define TIMELINE_ACTION_COUNT_MAX 128
+/** Maximum number of actions a timeline can support, smaller than 0xFF */
+#define TIMELINE_ACTION_COUNT_MAX 32
 
-/** Type forwarder for timeline_t */
+/** Type forwarders */
 typedef struct _timeline_t timeline_t;
+typedef struct _timelineaction_t timelineaction_t;
 
-/** Callback for when a timeline event occurs */
-typedef void timelinecallback_t(timeline_t*);
+/**
+ * Callback for when a timeline event occurs
+ * @param timeline The timeline that fired this callback.
+ * @param action The action that this callback is attached to.
+ * @param i The index that this action is within the timeline.
+ */
+typedef void timelinecallback_t(timeline_t *timeline, timelineaction_t *action,
+  uint8_t i
+);
 
-typedef struct test_t {
+typedef struct _timelineaction_t {
   /**
    * The time that this action should occur within the timeline
    * set to 0 or less to start immediately.
@@ -33,6 +42,13 @@ typedef struct test_t {
    */
   float duration;
 
+  /**
+   * Enables animation looping. This works by forcing start to be equal to the
+   * current time at the point in time that onEnd is called. This will also stop
+   * onStart being called so ensure that your onStart and onEnd logic works.
+   */
+  bool loop;
+
   timelinecallback_t *onStart;
   timelinecallback_t *onDuration;
   timelinecallback_t *onEnd;