From 7a69d60a9d5702eec30d80f9a4ef7acf615dbec9 Mon Sep 17 00:00:00 2001
From: XANTRONIX Development <dev@xantronix.com>
Date: Fri, 19 Jan 2024 20:47:07 -0500
Subject: [PATCH] This MIGHT work?  We'll see

---
 src/anim.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/src/anim.c b/src/anim.c
index 08cd7af..e4158d3 100644
--- a/src/anim.c
+++ b/src/anim.c
@@ -30,22 +30,38 @@ static inline size_t stop_index(hexagram_anim *anim, double offset) {
 
 int hexagram_anim_step(hexagram_anim *anim, cairo_t *bg, cairo_t *fg) {
     struct timeval tv;
-    double offset, interval;
+    double offset = 0.0, interval, progress;
     size_t i;
 
-    if (anim->current >= anim->count) {
-        goto done;
-    }
-
     gettimeofday(&anim->now, NULL);
 
     timersub(&anim->now, &anim->start, &tv);
 
+    /* Determine the interval between initialisation and now */
     interval = tv_seconds(&tv);
 
-done:
-    return 0;
+    /* Determine current animation stop index and time offset */
+    for (i=0; i<anim->count; i++) {
+        double duration = anim->stops[i].duration;
+
+        if (duration <= 0) {
+            continue;
+        }
+
+        if (interval < offset + duration) {
+            break;
+        }
+
+        offset += duration;
+    }
+
+    if (i == anim->count) {
+        /* We are apparently at the end. */
+        return 0;
+    }
+
+    /* Determine current progress through current stop */
+    progress = (interval - offset) / anim->stops[i].duration;
 
-next:
     return 1;
 }