import javafx.application.Application;
import javafx.stage.Stage;
import javafx.scene.layout.GridPane;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.shape.Rectangle;
import javafx.scene.control.ScrollPane;
import javafx.scene.paint.Color;
import java.util.Random;
import java.util.ArrayList;

/*
Nyttig til oblig 7?
To knapper - en legger til ruter. Den andre gir en tilfeldig rute fargen bl?. 
*/

public class Ruter extends Application{
    ArrayList<Rectangle> firkanter = new ArrayList<Rectangle>();
    Random rand = new Random();
    int radteller = 1;
    public void start(Stage stage){
        GridPane grid = new GridPane();
        ScrollPane skroll = new ScrollPane(grid);
        Scene scene = new Scene(skroll);
        stage.setScene(scene);

        Button leggTilRadKnapp = new Button("Ny rad");
        Button fargeKnapp = new Button("Ny farge");
        grid.setVgap(20);
        grid.setHgap(20);

        grid.add(leggTilRadKnapp, 0,0);
        grid.add(fargeKnapp, 1,0);


        leggTilRadKnapp.setOnAction(e ->{
            Rectangle a =  new Rectangle(50, 50);
            Rectangle b =  new Rectangle(50, 50);
            Rectangle c =  new Rectangle(50, 50);
            firkanter.add(a);
            firkanter.add(b);
            firkanter.add(c);
            grid.addRow(radteller++,a,b,c);
            //stage.sizeToScene();
        });

        fargeKnapp.setOnAction(e->{
            if(firkanter.size() == 0) return;
            int i = rand.nextInt(firkanter.size());
            while(firkanter.get(i).getFill().equals(Color.BLUE)){
                i = rand.nextInt(firkanter.size());
            }
            firkanter.get(i).setFill(Color.BLUE);
        });


        stage.setMaxHeight(800);
        stage.setMinWidth(300);
        stage.setMinHeight(300);
        stage.show();
    }
}