public static IEnumerator TweenColorRoutine(Sprite sprite, uint from, uint to, int duration,
Easing.Equation equation)
{
int time = 0;
sprite.color = from;
//float fromA = ((byte) (from >> 24)) / 255f;
float fromR = ((byte)(from >> 16)) / 255f;
float fromG = ((byte)(from >> 8)) / 255f;
float fromB = ((byte)(from >> 0)) / 255f;
//float toA = ((byte) (to >> 24)) / 255f;
float toR = ((byte)(to >> 16)) / 255f;
float toG = ((byte)(to >> 8)) / 255f;
float toB = ((byte)(to >> 0)) / 255f;
float redFromDir = fromR > toR ? fromR : 0;
float greenFromDir = fromG > toG ? fromG : 0;
float blueFromDir = fromB > toB ? fromB : 0;
float redToDir = fromR > toR ? 0 : fromR;
float greenToDir = fromG > toG ? 0 : fromG;
float blueToDir = fromB > toB ? 0 : fromB;
while (time < duration)
{
float r = redToDir + Easing.Ease(equation, time, redFromDir, toR - fromR,
duration);
float g = greenToDir +
Easing.Ease(equation, time, greenFromDir, toG - fromG,
duration);
float b = blueToDir +
Easing.Ease(equation, time, blueFromDir, toB - fromB,
duration);
sprite.SetColor(r, g, b);
time += Time.deltaTime;
yield return(null);
}
sprite.color = to;
}
