protected override void InitializeConstraintSystem(ConstraintThingySolver solver)
{
RealVariable x1 = solver.CreateRealVariable();
RealVariable y1 = solver.CreateRealVariable();
RealVariable x2 = solver.CreateRealVariable();
RealVariable y2 = solver.CreateRealVariable();
RealVariable distanceSquared = Constraint.DistanceSquared(new Vector2Variable(x1, y1), new Vector2Variable(x2, y2));
Constraint.InRange(distanceSquared, 25, 100);
}
