public void Update(GameTime gameTime)
{
if (fading)
{
if (fadeIn)
{
fadeValue += fadeSpeed;
if (fadeValue >= 255)
{
if (loop)
{
fadeIn = false;
}
else
{
fading = false;
}
fadeValue = 255;
OnFadedIn?.Invoke(this, null);
}
}
else
{
fadeValue -= fadeSpeed;
if (fadeValue <= 0)
{
if (loop)
{
fadeIn = true;
}
else
{
fading = false;
}
fadeValue = 0;
OnFadedOut?.Invoke(this, null);
}
}
byte b = (byte)fadeValue;
tr.color.R = b;
tr.color.G = b;
tr.color.B = b;
tr.color.A = b;
}
}
/// <summary>Use StartCoroutine() on this one.</summary>
public IEnumerator FadeOut(float fadeSeconds, bool stopWhenDone = true)
{
float startVolume = source.volume;
while (source.volume > 0)
{
source.volume -= startVolume * (Time.unscaledDeltaTime / fadeSeconds);
yield return(null);
}
if (stopWhenDone)
{
Stop();
source.volume = initialVolume;
}
OnFadedOut?.Invoke();
}
private IEnumerator FadeCoroutine(CanvasGroup group, float end, float time)
{
float start = group.alpha;
float alpha = group.alpha;
float timer = 0f;
while (alpha != end)
{
timer += Time.unscaledDeltaTime;
alpha = Mathf.Lerp(start, end, timer / time);
group.alpha = alpha;
yield return(null);
}
if (end == 1f)
{
OnFadedIn.Invoke();
}
else if (end == 0f)
{
OnFadedOut.Invoke();
}
}