public void collide(Bubble other)
{
Point otherpos = other.getPosition();
double otherrad = other.getRadius();
double distancesquared = (otherpos.x - position.x) * (otherpos.x - position.x)
+ (otherpos.y - position.y) * (otherpos.y - position.y);
double radiussquared = (otherrad + radius) * (otherrad + radius);
if (distancesquared < radiussquared)
{
double magnitude = (1 - (distancesquared * distancesquared) / (radiussquared * radiussquared)) * pushStrength;
double pushangle = Math.Atan((otherpos.y - position.y) / (otherpos.x - position.x)) + Math.PI;
if (otherpos.x < position.x) pushangle += Math.PI;
velocity.x += magnitude * Math.Cos(pushangle);
velocity.y += magnitude * Math.Sin(pushangle);
}
}
public static bool containsPoint(Bubble bubble, Point point)
{
Bubble.Point bubblepos = bubble.getPosition();
return (bubblepos.x - point.X) * (bubblepos.x - point.X) + (bubblepos.y - point.Y) * (bubblepos.y - point.Y)
< bubble.getRadius() * bubble.getRadius();
}