public bool IntersectCircle(Circle circle)
{
var distance = GetDistanceBetweenCircles(circle);
// check distance
return distance <= circle.Radius + Radius;
}
private double GetDistanceBetweenCircles(Circle circle)
{
var distanceX = Position.X - circle.Position.X;
var distanceY = Position.Y - circle.Position.Y;
return Math.Sqrt(distanceX * distanceX + distanceY * distanceY);
}
public bool ContainsCircle(Circle circle)
{
// bigger circle cannot be inside smaller one
if (circle.Radius > Radius)
{
return false;
}
var distance = GetDistanceBetweenCircles(circle);
return distance <= Math.Abs(Radius - circle.Radius);
}