fix(cli): do not terminate slides early (#162)

* fix(cli): do not terminate slides early

When a slide is replayed (either normally or reversed), its state must be reset.

Closes #161

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: jeertmans

example.py

@@ -32,6 +32,25 @@ def construct(self):
         self.next_slide()  # Waits user to press continue to go to the next slide
 
 
+class MultipleAnimationsInLastSlide(Slide):
+    """This is used to check against solution for issue #161."""
+
+    def construct(self):
+        circle = Circle(color=BLUE)
+        dot = Dot()
+
+        self.play(GrowFromCenter(circle))
+        self.play(FadeIn(dot))
+        self.next_slide()
+
+        self.play(dot.animate.move_to(RIGHT))
+        self.play(dot.animate.move_to(UP))
+        self.play(dot.animate.move_to(LEFT))
+        self.play(dot.animate.move_to(DOWN))
+
+        self.next_slide()
+
+
 class TestFileTooLong(Slide):
     """This is used to check against solution for issue #123."""
 

manim_slides/present.py

@@ -199,6 +199,8 @@ def current_cap(self) -> cv2.VideoCapture:
     def rewind_current_slide(self) -> None:
         """Rewinds current slide to first frame."""
         logger.debug("Rewinding current slide")
+        self.current_slide.terminated = False
+
         if self.reverse:
             self.current_animation = self.current_slide.end_animation - 1
         else: