private void Grid(int s, int e)
{
int count = 16 * 14;
float scale = 1.3f;
float rotation = (float)-Math.PI / 6;
Func <int, Vector2> pattern = (int i) => {
return(Patterns.Grid2D(
Vectors.ScreenTopLeft.scaled(scale),
Vectors.ScreenBottomRight.scaled(scale),
16, 9)(i)
.up(100).rotated(rotation).scaled(1.2));
};
var sprites = new SpriteSet(
layer,
i => BlurredSquareOutline,
i => OsbOrigin.Centre,
i => pattern(i)
, count
);
float fade = 0.4f;
//sprites.Fade(s, s + 200, 0.0f, fade);
double wavelength = 0.4f;
double duration = 5000;
double[] shifts = new double[count];
for (int i = 0; i < count; i++)
{
shifts[i] = 1000 * (sprites.Get(i).InitialPosition - Vectors.Centre.left(Vectors.ScreenSize.X / 2)).Length
/ Vectors.ScreenSize.X / wavelength;
}
for (double t = s + 200; t < e - 200; t += duration)
{
int i = 0;
foreach (var sprite in sprites.Sprites)
{
sprite.Fade(OsbEasing.InOutSine, t + shifts[i], t + duration / 2 + shifts[i], 0.02f, fade);
sprite.Fade(OsbEasing.InOutSine, t + duration / 2 + shifts[i], t + duration + shifts[i], fade, 0.02f);
i++;
}
}
//sprites.Fade(e - 200, e, fade, 0.0);
sprites.Scale(.7 * 1 / .7);
sprites.Rotate(rotation);
Vector2 d = Vectors.polar(rotation, 50);
sprites.MoveRelative(OsbEasing.None, s, e, d, -d);
var flashes = new SpriteSet(
layer,
i => BlurredSquareFilled,
i => OsbOrigin.Centre,
i => pattern(i),
count
);
float flashFade = 0.7f;
flashes.MoveRelative(OsbEasing.None, s, e, d, -d);
flashes.UseScalesOf(sprites);
flashes.UseRotationsOf(sprites);
flashes.Fade(s, 0);
double[] prevTimes = new double[count];
for (int i = 0; i < count; i++)
{
prevTimes[i] = s;
}
for (double t = s; t < e; t += 50)
{
while (true)
{
int index = Random(0, count);
float flashFade2 = flashFade * sprites.Get(index).OpacityAt(t) / fade;
if (prevTimes[index] <= t)
{
flashes.Fade(OsbEasing.OutExpo, t, t + 100, 0, flashFade2, index, 1);
flashes.Fade(OsbEasing.Out, t + 100, t + 2000, flashFade2, 0, index, 1);
prevTimes[index] = t + 2000;
break;
}
}
}
flashes.Additive();
}