package main

import (
	"math"
)

func easeInOutCubic(x float32) float32 {
	if x < 0.5 {
		return 4 * x * x * x
	} else {
		return 1 - float32(math.Pow(float64(-2*x+2), 3))/2
	}
}

func lerp(v0, v1, t float32) float32 {
	return (1-t)*v0 + t*v1
}

func easeInOutSine(x float32) float32 {
	return -float32(math.Cos(math.Pi*float64(x))-1) / 2
}