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

/**
 * Use this template to create drawings in FX. Change the name of the class and
 * put your own name as author below. Change the size of the canvas and the
 * window title where marked and add your drawing code where marked.
 *
 * @author YOUR NAME
 */
public class TestProgram 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(800, 700); // Set canvas Size in Pixels
        stage.setTitle("FXGraphicsTemplate"); // Set window title
        root.getChildren().add(canvas);
        stage.setScene(scene);
        GraphicsContext gc = canvas.getGraphicsContext2D();

        // YOUR CODE STARTS HERE 
        Shape[] a = new Shape[12];
        int count = 0;
      
     
          
        for (int i = 0; i < a.length; i++){
            
            double x1 = i * 60;
            double y1 = i * 50; 
            int c1 = getRandomInteger(0, 255);
            int c2 = getRandomInteger(0, 255);
            int c3 = getRandomInteger(0, 255);
            
            Color thecolor = Color.rgb(c1,c2,c3);
         
            
            if (count == 0)
                a[i] = new Square(65,thecolor, x1,y1);
            else if (count == 1)
                a[i] = new Circle(65,thecolor, x1,y1);
            else if (count == 2)
                a[i] = new Rectangle(45,90, thecolor, x1, y1);
            
            
            if (a[i] instanceof Square)    
                ((Square)a[i]).draw(gc);     
            else if (a[i] instanceof Circle)    
                ((Circle)a[i]).draw(gc);                
            else if (a[i] instanceof Rectangle)    
                ((Rectangle)a[i]).draw(gc);            
           
       
                
            if (count++ == 2) count = 0;
            
        }
        
        
       
        
        
        
        // 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;
    }

} //Main