private void btnTestDraw_Click(object sender, EventArgs e)
{
Circle c1 = new Circle() { x = 400, y = 400, num = 1, r = 100 };
Circle c2 = new Circle() { x = 400, y = 400, num = 2, r = 80, previous = c1, angleWithPrevious = Math.PI };
c1.next.Add(c2);
circles = new List<Circle>() { c1, c2 };
Circle previous = c1;
Circle current = c2;
previous = current.previous;
//Console.WriteLine("Circle " + current.num + " angle = " + current.angleWithPrevious);
current.x = previous.x + (previous.r + current.r) * Math.Cos(current.angleWithPrevious);
current.y = previous.y + (previous.r + current.r) * Math.Sin(current.angleWithPrevious);
Draw(g);
}
private void draw_circle(int radius)
{
double angle = 0.0;
double angle_stepsize = 0.3;
// go through all angles from 0 to 2 * PI radians
while (angle < 2 * Math.PI)
{
Circle c = new Circle();
Canvas.SetLeft(c, radius * Math.Cos(angle) + 400);
Canvas.SetTop(c, radius * Math.Sin(angle) + 50);
c.X = Canvas.GetLeft(c);
c.Y = Canvas.GetTop(c);
c.angle = angle;
canvas1.Children.Add(c);
angle += angle_stepsize;
lCircles.Add(c);
}
}
private double CheckCollison(Circle c1, Circle c2)
{
double result = 0;
double deltaX = Math.Abs(c1.x - c2.x);
double deltaY = Math.Abs(c1.y - c2.y);
double dist = Math.Sqrt(deltaX * deltaX + deltaY * deltaY);
double minDist = c1.r + c2.r;
result = (1.1 * minDist - dist) / (0.8 * minDist);
if (result < 0.0) result = 0.0;
if (result > 1.0) result = 1.0;
if (result == 0)
{
if (c1.collisions.ContainsKey(c2))
{
c1.collisions.Remove(c2);
c1.amplifyVelocityCount = 2;
}
if (c2.collisions.ContainsKey(c1))
{
c2.amplifyVelocityCount = 2;
c2.collisions.Remove(c1);
}
}
else
{
if (c1.collisions.ContainsKey(c2)) c1.collisions[c2] = result; else c1.collisions.Add(c2, result);
if (c2.collisions.ContainsKey(c1)) c2.collisions[c1] = result; else c2.collisions.Add(c1, result);
}
return result;
}
public double GetAngleBetweenCircles(Circle c1, Circle c2)
{
//
// c1 (fils)
// +
// \
// \
// \
// +------------+ Origine
// c2 (parent)
//
double cos = c2.x - c1.x;
double sin = c2.y - c1.y;
double angle = Math.Acos(cos / Math.Sqrt(Math.Pow(cos, 2) + Math.Pow(sin, 2)));
if (sin < 0) angle = Math.PI * 2 - angle;
return angle;
}