George2: Created page with " import javafx.animation.Animation; import javafx.animation.KeyFrame; import javafx.animation.Timeline; import javafx.application.Application; import jav..."

2014-11-15T23:01:31Z

Created page with "<source lang="java"> import javafx.animation.Animation; import javafx.animation.KeyFrame; import javafx.animation.Timeline; import javafx.application.Application; import jav..."

New page

<source lang="java">

import javafx.animation.Animation;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
import javafx.util.Duration;

public class Ball extends Application {
static int dx = 1;
static int dy = 1;

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

@Override
public void start(final Stage primaryStage) {
primaryStage.setTitle("Animation");
Group root = new Group();
Scene scene = new Scene(root, 400, 300, Color.WHITE);

primaryStage.setScene(scene);
addBouncyBall(scene);
primaryStage.show();
}
private void addBouncyBall(final Scene scene) {
final Circle ball = new Circle(100, 100, 20);

final Group root = (Group) scene.getRoot();
root.getChildren().add(ball);

Timeline tl = new Timeline();
tl.setCycleCount(Animation.INDEFINITE);
KeyFrame moveBall = new KeyFrame(Duration.seconds(.0200),
new EventHandler<ActionEvent>() {

public void handle(ActionEvent event) {

double xMin = ball.getBoundsInParent().getMinX();
double yMin = ball.getBoundsInParent().getMinY();
double xMax = ball.getBoundsInParent().getMaxX();
double yMax = ball.getBoundsInParent().getMaxY();

if (xMin < 0 || xMax > scene.getWidth()) {
dx = dx * -1;
}
if (yMin < 0 || yMax > scene.getHeight()) {
dy = dy * -1;
}

ball.setTranslateX(ball.getTranslateX() + dx);
ball.setTranslateY(ball.getTranslateY() + dy);

}
});

tl.getKeyFrames().add(moveBall);
tl.play();
}
}

</source>

Ball.java - Revision history

George2: Created page with " import javafx.animation.Animation; import javafx.animation.KeyFrame; import javafx.animation.Timeline; import javafx.application.Application; import jav..."