private IEnumerator ScrollSpeedFader(float to, float duration, FadingType type)
{
float start = _scrollingSpeed;
float t = 0;
while (t < duration)
{
float tn = t / duration;
switch (type)
{
case FadingType.LINEAR:
_scrollingSpeed = Maths.Lerp(start, to, tn);
break;
case FadingType.SMOOTH_STEP:
_scrollingSpeed = Maths.Lerp(start, to, Maths.SmoothStep(0, 1, tn));
break;
case FadingType.FADE_IN:
_scrollingSpeed = Maths.Lerp(start, to, Maths.EaseIn(tn));
break;
case FadingType.FADE_OUT:
_scrollingSpeed = Maths.Lerp(start, to, Maths.EaseOut(tn));
break;
}
t += Program.UpdateTime.DeltaTime;
yield return(null);
}
_scrollingSpeed = to;
_fade = null;
}
private IEnumerator WarningScreen(Animation anim)
{
Vector2 startPos = new Vector2(0, -80);
Vector2 endPos = new Vector2(0, -2);
_warning.Animation = anim;
_warning.Spawn(startPos, Vector2.zero);
yield return(Program.UpdateTime.WaitForSeconds(2.0f));
float t = 0;
float duration = 0.5f;
float delta;
while (t < duration)
{
delta = Program.UpdateTime.DeltaTime;
float n = t / duration;
_warning.Update(delta);
_warning.Position = Vector2.Lerp(startPos, endPos, Maths.SmoothStep(0.0f, 1.0f, n));
t += delta;
yield return(null);
}
startPos = endPos;
_warning.Position = startPos;
endPos = new Vector2(0, 10);
duration = 2.5f;
t = 0;
while (t < duration)
{
delta = Program.UpdateTime.DeltaTime;
float n = t / duration;
_warning.Update(delta);
_warning.Position = Vector2.Lerp(startPos, endPos, n);
t += delta;
yield return(null);
}
startPos = endPos;
_warning.Position = startPos;
endPos = new Vector2(0, 90);
duration = 2.0f;
t = 0;
float multiplier = 1.0f;
while (t < duration)
{
delta = Program.UpdateTime.DeltaTime;
float n = t / duration;
_warning.Update(delta);
_warning.Position = Vector2.Lerp(startPos, endPos, n);
t += delta * multiplier;
multiplier = Maths.Lerp(1.0f, 5.0f, n);
yield return(null);
}
_warning.Despawn(false);
}