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BUG: Fix debug assertion on ShakeCurve animation. #27

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merged 1 commit into from Oct 25, 2020

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ssanderson
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Flutter's Curve class requires that the transform function map 0 to ~0 and 1
to ~1. The previous ShakeCurve transform function sin(t * 3 * pi).abs(), which
doesn't satisfy this property because sin(3 * pi) is 0, not 1.

Changing the constant from 3 to 2.5 produces the required endpoint value for t
= 1.

Fixes #23 .

Flutter's Curve class requires that the `transform` function map 0 to ~0 and 1
to ~1. The previous ShakeCurve transform function sin(t * 3 * pi).abs(), which
doesn't satisfy this property because sin(3 * pi) is 0, not 1.

Changing the constant from 3 to 2.5 produces the required endpoint value for t
= 1.
@xPutnikx
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Thank you @ssanderson for the contribution!

@xPutnikx xPutnikx merged commit 281a3bf into xPutnikx:master Oct 25, 2020
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Invalid curve endpoint at 1.0
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