simple-easing 1.0.1

Set of simple easing functions
Documentation 
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use ::std::f32::consts::PI;

/// <https://easings.net/#easeInSine>
pub fn sine_in(t: f32) -> f32 {
	1.0 - (t * PI / 2.0).cos()
}

/// <https://easings.net/#easeOutSine>
pub fn sine_out(t: f32) -> f32 {
	(t * PI / 2.0).sin()
}

/// <https://easings.net/#easeInOutSine>
pub fn sine_in_out(t: f32) -> f32 {
	-((PI * t).cos() - 1.0) / 2.0
}