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fix(lib): add a more meaningful error message (#30)

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* fix(lib): add a more meaningful error message

This adds an error message to explain why calling `self.pause()` cannot work if no previous animation was played.

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This commit is contained in:
Jérome Eertmans
2022-09-26 17:29:17 +02:00
committed by GitHub
parent 2457ca8a05
commit 546451e019
1 changed files with 5 additions and 0 deletions
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5
manim_slides/config.py
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@ -84,6 +84,11 @@ class SlideConfig(BaseModel):
def start_animation_is_before_end(cls, values):
if values["start_animation"] >= values["end_animation"]:
if values["start_animation"] == values["end_animation"] == 0:
raise ValueError(
"You have to play at least one animation (e.g., `self.wait()`) before pausing. If you want to start paused, use the approriate command-line option when presenting."
)
raise ValueError(
"Start animation index must be strictly lower than end animation index"
)