//DEPS org.openjfx:javafx-graphics:11.0.2:${os.detected.jfxname}
import javafx.animation.*;
import javafx.application.*;
import javafx.scene.*;
import javafx.scene.layout.*;
import javafx.scene.paint.*;
import javafx.scene.shape.*;
import javafx.stage.*;
import javafx.util.*;

public class CircleSpinnyThingies extends Application {
	Pane pane = new Pane();
	Transition master;
	int numCircles = 100;
	int width = 1800;
	int height = 1000;
	int bigSize = 20;
	int smallSize = 6;
	int offset = 5;
	@Override
	public void start(Stage stage) throws Exception {
		for (int outer = 0; outer <= numCircles; outer++) {
			for (int i = 0; i <= numCircles; i++) {
				Circle big = new Circle(bigSize);
				big.setFill(null);
				big.setStroke(Color.BLACK);
				big.setOpacity(0.0);
				Circle small = new Circle(smallSize, Color.BLACK);
				int bigX = i * (bigSize + offset);
				int bigY = outer * (bigSize + offset);
				int smallX = bigX;
				int smallY = bigY - bigSize;
				big.setCenterX(bigX);
				big.setCenterY(bigY);
				small.setCenterX(smallX);
				small.setCenterY(smallY);
				
				PathTransition pt = new PathTransition(Duration.millis(3500), big);
				pt.setNode(small);
				pt.setInterpolator(Interpolator.LINEAR);
				pt.setOrientation(PathTransition.OrientationType.ORTHOGONAL_TO_TANGENT);
				pt.setCycleCount(Timeline.INDEFINITE);
				pt.setDelay(Duration.millis((50 * i) + (50 * outer)));
				pt.play(); // Start animation 

				pane.getChildren().addAll(big, small);
			}
		}
		Scene scene = new Scene(pane, width, height);
		stage.setScene(scene);
		stage.setMaximized(true);
		stage.setTitle("Circle Spinny Thingie");
		stage.show();
	}

	public static void main(String[] args) {
		launch(args);
	}
	
}