private Circle drawCircle(double x, double y, double radius, Color color) {
Circle circle = new Circle(x, y, radius, color);
RadialGradient gradient1 =
new RadialGradient(
0,
0.1,
x,
y,
radius,
false,
CycleMethod.NO_CYCLE,
new Stop(0, color),
new Stop(1, Color.BLACK));
circle.setFill(gradient1);
circle.setStyle("-fx-opacity: 0.8;");
return circle;
}
