Now have a timer for animations that does ticks with deltatime...maybe it works.

animate2.cpp

@@ -76,6 +76,38 @@ namespace animate2 {
     $transform.lerp($sequence, pos, scale);
   }
 
+  void Timer::start() {
+    clock.start();
+  }
+
+  void Timer::reset() {
+    clock.reset();
+  }
+
+  void Timer::restart() {
+    clock.restart();
+  }
+
+  sf::Time Timer::getElapsedTime() {
+    return clock.getElapsedTime();
+  }
+
+  void Timer::begin() {
+    prev_time = clock.getElapsedTime().asSeconds();
+  }
+
+  std::pair<int, double> Timer::commit() {
+    current_time = clock.getElapsedTime().asSeconds();
+    frame_duration = current_time - prev_time;
+    accumulator += frame_duration;
+
+    double tick_count = accumulator / DELTA;
+    double alpha = modf(tick_count, &tick_count);
+    accumulator -= tick_count * DELTA;
+
+    return {int(tick_count), alpha};
+  }
+
   float Transform::twitching(Sequence& seq) {
     float tick = 1 - std::powf(ease_rate, seq.subframe + 0.0001);
     return easing(tick);