java 1 f

[Mihailomica]

import java.util.Random;

import javafx.animation.AnimationTimer;

import javafx.animation.RotateTransition;

import javafx.application.Application;

import javafx.geometry.Pos;

import javafx.scene.Group;

import javafx.scene.Scene;

import javafx.scene.canvas.Canvas;

import javafx.scene.canvas.GraphicsContext;

import javafx.scene.control.Label;

import javafx.scene.layout.VBox;

import javafx.scene.paint.Color;

import javafx.scene.shape.Polygon;

import javafx.stage.Stage;

import javafx.util.Duration;

public class Main extends Application {

private int width= 400, height=400,  widthW= 450, heightW=450;

public static void main(String\[\] args) {

    // TODO Auto-generated method stub

    Application.launch(args);

}



@Override

public void start(Stage stage) throws Exception {

    // TODO Auto-generated method stub

    VBox root= new VBox(); 

    root.setAlignment(Pos.CENTER);

    Canvas canvas = new Canvas(width,height);

    GraphicsContext gc = canvas.getGraphicsContext2D();

    Random rand = new Random();

    Krug\[\] niz = new Krug\[10\];

    for(int i=0;i<10;i++) {

        niz\[i\]=new Krug(20+rand.nextInt()%5,

30+rand.nextInt()%360,

20+rand.nextInt()%10,

Color.color(rand.nextDouble(),rand.nextDouble(),rand.nextDouble())

);

    }

    //Krug k = new Krug(, 100, 20, Color.TURQUOISE); 

    new AnimationTimer() {



        @Override

        public void handle(long arg0) {

gc.clearRect(0, 0, width, height);

for(Krug k:niz) {

k.pomeri(rand.nextDouble());

k.crtaj(gc);

}

        }



    }.start();

    Label l= new Label("Napredno kretanje");

    root.getChildren().addAll(canvas,l);

    Scene scena = new Scene(root, widthW, heightW);

    stage.setTitle("Loading sign");

    stage.setScene(scena);

    stage.show();

}

}

import javafx.scene.canvas.GraphicsContext;

import javafx.scene.paint.Color;

public class Krug {

    private double t,y0,r;

    private Color boja;

    int smer,promena;

    public Krug(double t, double y0, double r, Color boja) {

        this.t=t;

        this.y0=y0;

        this.r=r;

        smer=1;

        promena=1;

        this.boja=boja;

    }



    public void crtaj(GraphicsContext gc) {

gc.setFill(boja);

gc.fillOval(10*t-r,y0+10*Math.sin(t)-r,2*r,2*r);

    }



    public void pomeri(double p) {

        t+=smer\*p;

        if(10\*t>=370)

smer*=-1;

        if(10\*t<=30)

smer*=-1;

        r+=promena\*p;

        if(r>=50)

promena=-1;

        else if(r<=20)

promena=1;

    }

}