Wrong implementation of "SinusoidalCenter"

[SamFisher940425]

Describe the bug
There is an error in the function implementation of "SinusoidalCenter" that caused the output to be abnormal when the input was greater than 0.5

To Reproduce
Steps to reproduce the behavior:
In the file "src/internal/animations/NeoEase.h", line 214. In the function "SinusoidalCenter", I think there is an extra parenthesis in the
code "return (-0.5f * (cos(PI * (unitValue-0.5f)) + 1.0f));", I think the correct one is "return (-0.5f * cos(PI * (unitValue - 0.5f)) + 1.0f);"

Expected behavior
I think the correct one is "return (-0.5f * cos(PI * (unitValue - 0.5f)) + 1.0f);", according to the picture "sinusoidal.png"

Development environment (please complete the following information):

• Library version V2.8.0

[SamFisher940425]

I've created a scatterplot using excel to illustrate the problem, and I hope it helps

[Makuna]

Its currently implemented as

    static float SinusoidalCenter(float unitValue)
    {
        if (unitValue < 0.5f)
        {
            return (0.5f * sin(PI * unitValue));
        }
        else
        {
            return (-0.5f * (cos(PI * (unitValue-0.5f)) + 1.0f));
        }  
    }

In my spread sheet test, it is implemented as

=IF(    N5<0.5,     0.5 * SIN(N5*PI()),       -0.5 * COS((N5-0.5) * PI()) + 1 )

You can see the translation from spread sheet to c++ the extra () causes the issue.

So, it should be

            return (-0.5f * cos(PI * (unitValue-0.5f)) + 1.0f);

[SamFisher940425]

Thank you for your quick response and fixing!

[Makuna]

I leave issues open and labeled "pending" until I make a release with the changes in it.