private void applyTransform(DrawableHitObject drawable, ArmedState state)
{
switch (drawable)
{
case DrawableSliderHead _:
case DrawableSliderTail _:
case DrawableSliderTick _:
case DrawableSliderRepeat _:
return;
default:
var hitObject = (OsuHitObject)drawable.HitObject;
float appearDistance = (float)(hitObject.TimePreempt - hitObject.TimeFadeIn) / 2;
Vector2 originalPosition = drawable.Position;
Vector2 appearOffset = new Vector2(MathF.Cos(theta), MathF.Sin(theta)) * appearDistance;
// the - 1 and + 1 prevents the hit objects to appear in the wrong position.
double appearTime = hitObject.StartTime - hitObject.TimePreempt - 1;
double moveDuration = hitObject.TimePreempt + 1;
using (drawable.BeginAbsoluteSequence(appearTime, true))
{
drawable
.MoveToOffset(appearOffset)
.MoveTo(originalPosition, moveDuration, Easing.InOutSine);
}
theta += (float)hitObject.TimeFadeIn / 1000;
break;
}
}