public void impact(Star Item)
{
if (Item.available())
{
if (Item != this)
{
double GM = GERAVITY * Item.mass;
double DeltaX = Item.x - x;
double DeltaY = Item.y - y;
double DeltaZ = Item.z - z;
double R3 = Math.Pow(DeltaX * DeltaX + DeltaY * DeltaY + DeltaZ * DeltaZ, 1.5);
if (Math.Pow(R3, 1.0 / 3) < MIN_R)
{
if (mass >= Item.mass)
{
this.Add(Item);
}
}
else
{
ax += (GM * DeltaX) / R3;
ay += (GM * DeltaY) / R3;
az += (GM * DeltaZ) / R3;
}
}
}
}
public void Show(Star Star1, Graphics screen)
{
Brush brush;
if (Star1.available())
{
int w, h, xx, yy;
double x = Star1.X - xOfDist;
double y = Star1.Y - yOfDist;
double z = Star1.Z - zOfDist;
if (xOfCamera * x + yOfCamera * y + zOfCamera * z < xOfCamera * xOfCamera + yOfCamera * yOfCamera + zOfCamera * zOfCamera)
{
double R = Math.Pow((x - xOfCamera) * (x - xOfCamera) + (y - yOfCamera) * (y - yOfCamera) + (z - zOfCamera) * (z - zOfCamera), 0.5);
double M = 255 - (255 * R) / (R + 400);
brush = new SolidBrush(Color.FromArgb((int)M, (int)M, (int)M));
double X, Y;
X = this.GetNewX(x, y, z);
Y = this.GetNewY(x, y, z);
h = w = (int)((Math.Pow(Star1.R, 2) / Math.Pow(R * R - Math.Pow(Star1.R, 3.0 / 2), 0.5)) * 200);///2/3
xx = (int)(screen.VisibleClipBounds.Width / 2 + X - w / 2);
yy = (int)(screen.VisibleClipBounds.Height / 2 + Y - h / 2);
screen.FillEllipse(brush, xx, yy, w, h);
}
}
}
public void Show(Star Star1,Graphics screen)
{
Brush brush;
if (Star1.available())
{
int w, h,xx,yy;
double x = Star1.X - xOfDist;
double y = Star1.Y - yOfDist;
double z = Star1.Z - zOfDist;
if (xOfCamera * x + yOfCamera * y + zOfCamera * z < xOfCamera * xOfCamera + yOfCamera * yOfCamera + zOfCamera * zOfCamera)
{
double R = Math.Pow((x - xOfCamera) * (x - xOfCamera) + (y - yOfCamera) * (y - yOfCamera) + (z - zOfCamera) * (z - zOfCamera), 0.5);
double M = 255 - (255 * R) / (R + 400);
brush = new SolidBrush(Color.FromArgb((int)M, (int)M, (int)M));
double X, Y;
X = this.GetNewX(x, y, z);
Y = this.GetNewY(x, y, z);
h = w = (int)((Math.Pow(Star1.R, 2) / Math.Pow(R * R - Math.Pow(Star1.R, 3.0 / 2), 0.5)) * 200);///2/3
xx = (int)(screen.VisibleClipBounds.Width/ 2 + X - w / 2);
yy = (int)(screen.VisibleClipBounds.Height / 2 + Y - h / 2);
screen.FillEllipse(brush, xx, yy, w, h);
}
}
}
public void impact(Star Item)
{
if(Item.available())
{
if(Item!=this)
{
double GM=GERAVITY*Item.mass;
double DeltaX=Item.x - x;
double DeltaY=Item.y - y;
double DeltaZ=Item.z - z;
double R3=Math.Pow(DeltaX*DeltaX+DeltaY*DeltaY+DeltaZ*DeltaZ,1.5);
if(Math.Pow(R3,1.0/3)<MIN_R)
{
if(mass>=Item.mass)
this.Add(Item);
}
else
{
ax+=(GM*DeltaX)/R3;
ay+=(GM*DeltaY)/R3;
az+=(GM*DeltaZ)/R3;
}
}
}
}