protected override void DrawInner(GraphicsContext graphicsContext)
{
if (_currentBooster == null)
{
if (_boosterState.ActiveBooster != null)
{
_currentBooster = _boosterState.ActiveBooster;
}
return;
}
this.DrawBooster(graphicsContext);
}
private void UpdateAlpha(UpdateContext graphicsContext)
{
const float FadeSpeed = 2f;
if (_boosterState.ActiveBooster == null)
{
// fade out
_alpha = FlaiMath.Max(_alpha - graphicsContext.DeltaSeconds * FadeSpeed, 0);
if (_alpha <= 0)
{
_currentBooster = null;
}
}
else
{
// fade in
_alpha = FlaiMath.Min(_alpha + graphicsContext.DeltaSeconds * FadeSpeed, 1);
}
}
