import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.canvas.Canvas;
import javafx.scene.canvas.GraphicsContext;
import javafx.stage.Stage;


import java.util.Scanner;
import javafx.scene.paint.Color;

import static javafx.application.Application.launch;
import static javafx.scene.paint.Color.rgb;

/**
 * This program generates up to 11 random circles
 *
 * @author Dave Slemon
 * @version v100
 */
public class RandomCircles extends Application {

    /**
     * Start method (use this instead of main).
     *
     * @param stage The FX stage to draw on
     * @throws Exception
     */
    @Override
    public void start(Stage stage) throws Exception {

        Group root = new Group();
        Scene scene = new Scene(root);
        Canvas canvas = new Canvas(400, 300); // Set canvas Size in Pixels
        stage.setTitle("Random Circle Generator"); // Set window title
        root.getChildren().add(canvas);
        stage.setScene(scene);
        GraphicsContext gc = canvas.getGraphicsContext2D();

        // YOUR CODE STARTS HERE
        Scanner scanner = new Scanner(System.in);
        int count = 1;

        System.out.println("This program generates random sized circles.\n");
        boolean ok = false;
        do {
            System.out.print("How many circles should be generated? (between 1-11) ");
            count = scanner.nextInt();
            scanner.nextLine();  // Consume the newline character left in the buffer

            ok = (count >= 1 && count <= 11);
        } while (!ok);


        int num=0;

        Circle c = new Circle();
        do {
            int xx = getRandomInteger(15,350);
            int yy = getRandomInteger(15,250);
            int r  = getRandomInteger(0,256);
            int g  = getRandomInteger(0,256);
            int b  = getRandomInteger(0,256);
            c.setCenter(xx,yy);
            c.setRadius(getRandomInteger(3,50));
            c.setColor( rgb(r,g,b), rgb(r,g,b) );
            c.draw(gc);
            num++;
        } while (num < count);

/*
        Rectangle r = new Rectangle();


        int x = 20;
        int y = 100;
        do {
            r.setTopLeft_x(x+(num * 45));
            r.setTopLeft_y(100);
            r.setLength(20);
            r.setWidth(40);
            r.draw(gc);
            num++;
        } while (num < count);
*/


        // YOUR CODE STOPS HERE
        stage.show();
    }

    /**
     * The actual main method that launches the app.
     *
     * @param args unused
     */
    public static void main(String[] args) {

        launch(args);
    }




    /**
     Provides a random int between minimum and maximum,not including maximum
     @return minimum <= num < maximum
     */
    public static int getRandomInteger( int minimum, int maximum)
    {
        return ((int) (Math.random() * (maximum - minimum))) + minimum;
    }

}