public void removeLink(Link link)
{
links.Remove(link);
}
public void bounceFixed(Link link)
{
Point pa = new Point(link.A.positionX, link.A.positionY);
Point pb = new Point(link.B.positionX, link.B.positionY);
Transform tf = new Transform(pa, pb);
Point poldt = tf.transform(new Point(oldx, oldy));
Point pnewt = tf.transform(new Point(newx, newy));
if (poldt.y * pnewt.y < 0) {
Point pbt = tf.transform(pb);
double newFraction = ( -poldt.y) / (pnewt.y - poldt.y);
if (newFraction < fraction) {
double x = (1 - newFraction) * poldt.x + pnewt.x * newFraction;
if (x >= 0 && x <= pbt.x) {
fraction = newFraction;
double y;
if (poldt.y < 0)
y = -1e-3;
else
y = 1e-3;
Point pn = tf.inverse(new Point(x, y));
positionX = pn.x;
positionY = pn.y;
Point vt = tf.transformVector(new Point(newvx, newvy));
vt.y = model.surfaceReflection * vt.y;
vt.x = model.surfaceFriction * vt.x;
Point vn = tf.inverseVector(vt);
velocityX = vn.x;
velocityY = vn.y;
}
}
}
}
public void addLink(Link link)
{
links.Add(link);
}
