private TriangleParticle createTriangle(bool randomY)
{
TriangleParticle particle = CreateTriangle();
particle.Position = new Vector2(RNG.NextSingle(), randomY ? RNG.NextSingle() : 1);
particle.Colour = CreateTriangleShade();
return(particle);
}
private TriangleParticle createTriangle(bool randomY)
{
TriangleParticle particle = CreateTriangle();
particle.Position = new Vector2(RNG.NextSingle(), randomY ? RNG.NextSingle() : 1);
particle.Colour = MultipleColours ? Colours[RNG.Next(0, Colours.Length - 1)] : CreateTriangleShade();
return(particle);
}
protected override void Update()
{
base.Update();
Velocity = 2.32222f + (float)Math.Pow((meta.Value?.Track?.CurrentAmplitudes.Average ?? 0) * 2 + .5, 2.5);
Invalidate(Invalidation.DrawNode, shallPropagate: false);
if (CreateNewTriangles)
{
addTriangles(false);
}
float adjustedAlpha = HideAlphaDiscrepancies ?
// Cubically scale alpha to make it drop off more sharply.
(float)Math.Pow(DrawInfo.Colour.AverageColour.Linear.A, 3) :
1;
float elapsedSeconds = (float)Time.Elapsed / 1000;
// Since position is relative, the velocity needs to scale inversely with DrawHeight.
// Since we will later multiply by the scale of individual triangles we normalize by
// dividing by triangleScale.
float movedDistance = -elapsedSeconds * Velocity * base_velocity / (DrawHeight * triangleScale);
for (int i = 0; i < parts.Count; i++)
{
TriangleParticle newParticle = parts[i];
// Scale moved distance by the size of the triangle. Smaller triangles should move more slowly.
newParticle.Position.Y += parts[i].Scale * movedDistance;
parts[i] = newParticle;
float bottomPos = parts[i].Position.Y + triangle_size * parts[i].Scale * 0.866f / DrawHeight;
if (bottomPos < 0)
{
parts.RemoveAt(i);
}
}
}
protected override void Update()
{
base.Update();
Invalidate(Invalidation.DrawNode, shallPropagate: false);
for (int i = 0; i < parts.Count; i++)
{
TriangleParticle newParticle = parts[i];
float adjustedAlpha = HideAlphaDiscrepancies ?
// Cubically scale alpha to make it drop off more sharply.
(float)Math.Pow(DrawInfo.Colour.AverageColour.Linear.A, 3) :
1;
newParticle.Position += new Vector2(0, -(parts[i].Scale * (50 / DrawHeight)) / triangleScale * Velocity) * ((float)Time.Elapsed / 950);
newParticle.Colour.A = adjustedAlpha;
parts[i] = newParticle;
if (!CreateNewTriangles)
{
continue;
}
float bottomPos = parts[i].Position.Y + triangle_size * parts[i].Scale * 0.866f / DrawHeight;
if (bottomPos < 0)
{
parts.RemoveAt(i);
}
}
addTriangles(false);
}