public void Update(float dt)
{
float num = this.NoAttractPhaseFriction;
this.timeRemainingWithoutAttract -= dt;
if ((double)this.timeRemainingWithoutAttract <= 0.0)
{
if (this.Points.Count > 1)
{
num = this.Friction;
}
for (int index1 = 0; index1 < this.Points.Count; ++index1)
{
for (int index2 = 0; index2 < this.Points.Count; ++index2)
{
if (index1 != index2)
{
PointGatherEffect.StarPoint point1 = this.Points[index1];
PointGatherEffect.StarPoint point2 = this.Points[index2];
if (point2.AttractedToOthers)
{
this.Points[index2] = this.ProcessAttractionBetweenPoints(point1, point2, dt, false);
}
}
}
}
}
PointGatherEffect.StarPoint pA = new PointGatherEffect.StarPoint()
{
Pos = new Vector2(0.5f), size = this.attractionToCentreMass, Velocity = Vector2.Zero
};
for (int index = 0; index < this.Points.Count; ++index)
{
PointGatherEffect.StarPoint point = this.Points[index];
if ((double)point.drawnSize < (double)point.size)
{
point.drawnSize = Math.Min(point.size, point.drawnSize + dt * 15f);
}
point.Pos += point.Velocity * dt;
if ((double)point.Pos.X > 1.0 || (double)point.Pos.Y > 1.0 || (double)point.Pos.X < 0.0 || (double)point.Pos.Y < 0.0)
{
point.Pos.X = Math.Max(0.0f, Math.Min(point.Pos.X, 1f));
point.Pos.Y = Math.Max(0.0f, Math.Min(point.Pos.Y, 1f));
point.Velocity *= -0.5f;
}
point.Velocity -= point.Velocity * (num * dt);
this.Points[index] = point;
if (this.Points.Count > 1)
{
this.Points[index] = this.ProcessAttractionBetweenPoints(pA, point, dt, true);
}
}
this.ResolveMergesThisFrame();
if ((double)this.starSize <= 0.0)
{
return;
}
this.starSize -= dt * 3f;
}
private PointGatherEffect.StarPoint ProcessAttractionBetweenPoints(PointGatherEffect.StarPoint pA, PointGatherEffect.StarPoint pB, float dt, bool constantForce = false)
{
Vector2 vector2_1 = constantForce ? pA.Pos + pA.Velocity * 0.4f : pA.Pos;
float num1 = (float)Math.Pow((double)Vector2.Distance(pA.Pos, pB.Pos), 2.0);
if (constantForce)
{
num1 = 0.2f;
}
float num2 = this.GravityConstant * (pA.size * pB.size) / num1 * (pA.size / pB.size);
Vector2 vector2_2 = vector2_1 - pB.Pos;
vector2_2.Normalize();
Vector2 vector2_3 = vector2_2 * num2;
pB.Velocity += vector2_3 * dt;
return(pB);
}
private int ResolveMergesThisFrame()
{
if ((double)this.timeRemainingWithoutAttract <= 0.0)
{
for (int index1 = 0; index1 < this.Points.Count; ++index1)
{
for (int index2 = 0; index2 < this.Points.Count; ++index2)
{
if (index1 != index2)
{
PointGatherEffect.StarPoint point1 = this.Points[index1];
PointGatherEffect.StarPoint point2 = this.Points[index2];
if ((double)Vector2.Distance(point1.Pos, point2.Pos) < (double)this.absorbDistance * (1.0 + 0.200000002980232 * ((double)point1.size + (double)point2.size)))
{
float num1 = point1.size / point2.size;
float num2 = (double)point1.drawnSize > (double)point2.drawnSize ? point1.drawnSize : point2.drawnSize;
PointGatherEffect.StarPoint starPoint = new PointGatherEffect.StarPoint()
{
Pos = (double)point1.size > (double)point2.size ? point1.Pos : point2.Pos, Velocity = Vector2.Lerp(Vector2.Zero, point1.Velocity + point2.Velocity, 0.3f), size = point1.size + point2.size, drawnSize = num2
};
this.Points.RemoveAt(index1);
if (index2 > index1)
{
this.Points.RemoveAt(index2 - 1);
}
else
{
this.Points.RemoveAt(index2);
}
this.Points.Add(starPoint);
return(1 + this.ResolveMergesThisFrame());
}
}
}
}
}
return(0);
}