public void setMagnitudeVelocity(double m)
{
Vect vel = pos.sub(oldPos);
vel.setLength(m);
this.oldPos = pos.sub(vel);
}
public void CheckColl(Ball a) //Checking for Circle Collisions
{
double db = a.pos.findDistanceBetweenSq(this.pos);
double er = a.rad + this.rad;
if (db < er * er)
{
if (db == 0)
{
db = 1;
}
double m1m2 = a.mass + this.mass;
Vect d = a.pos.sub(this.pos);
d.setLength(er - Math.Sqrt(db));
a.pos = a.pos.add(d.mult((this.mass / m1m2)));
}
}
public void CheckColl(List <Ball> a)
{
foreach (Ball x in a)
{
if (x != this)
{
double db = x.pos.findDistanceBetweenSq(this.pos); //distance between
double er = x.rad + this.rad;
if (db < er * er)
{
double m1m2 = x.mass + this.mass;
Vect d = x.pos.sub(this.pos);
d.setLength(er - Math.Sqrt(db));
x.pos = x.pos.add(d.mult((this.mass / m1m2)));
this.pos = this.pos.sub(d.mult((x.mass / m1m2)));
}
}
}
}