static Easing ()
{
BounceOut = new Easing (p => {
if (p < (1 / 2.75f))
{
return 7.5625f * p * p;
}
else if (p < (2 / 2.75f))
{
p -= (1.5f / 2.75f);
return 7.5625f * p * p + .75f;
}
else if (p < (2.5f / 2.75f))
{
p -= (2.25f / 2.75f);
return 7.5625f * p * p + .9375f;
}
else
{
p -= (2.625f / 2.75f);
return 7.5625f * p * p + .984375f;
}
});
BounceIn = new Easing (p => 1.0f - BounceOut.Func (p));
}
public Action <double> GetCallback()
{
Action <double> result = f => {
step(easing.Func(f));
foreach (var animation in children)
{
if (animation.finishedTriggered)
{
continue;
}
double val = Math.Max(0.0f, Math.Min(1.0f, (f - animation.beginAt) / (animation.finishAt - animation.beginAt)));
if (val <= 0.0f) // not ready to process yet
{
continue;
}
var callback = animation.GetCallback();
callback(val);
if (val >= 1.0f)
{
animation.finishedTriggered = true;
if (animation.finished != null)
{
animation.finished();
}
}
}
};
return(result);
}
static Easing()
{
BounceOut = new Easing(p => {
if (p < (1 / 2.75f))
{
return(7.5625f * p * p);
}
else if (p < (2 / 2.75f))
{
p -= (1.5f / 2.75f);
return(7.5625f * p * p + .75f);
}
else if (p < (2.5f / 2.75f))
{
p -= (2.25f / 2.75f);
return(7.5625f * p * p + .9375f);
}
else
{
p -= (2.625f / 2.75f);
return(7.5625f * p * p + .984375f);
}
});
BounceIn = new Easing(p => 1.0f - BounceOut.Func(p));
}
public void Start()
{
Pause();
lastMilliseconds = 0;
timer = Ticker.Default.Insert(step => {
var ms = step + lastMilliseconds;
double rawValue = Math.Min(1.0f, ms / (double)Length);
Value = Easing.Func(rawValue);
lastMilliseconds = ms;
if (ValueUpdated != null)
{
ValueUpdated(this, EventArgs.Empty);
}
if (rawValue >= 1.0f)
{
if (Loop)
{
lastMilliseconds = 0;
Value = 0.0f;
return(true);
}
if (Finished != null)
{
Finished(this, EventArgs.Empty);
}
Value = 0.0f;
timer = 0;
return(false);
}
return(true);
});
}