CollisionDetection.java

import javafx.application.Application;
import javafx.geometry.Bounds;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Paint;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class CollisionDetection extends Application {

    @Override
    public void start(Stage primaryStage) {
        Label label = new Label();
        Pane paneA = new Pane();
        Pane paneB = new Pane();

        Rectangle objectA = new Rectangle(50, 30);
        objectA.setFill(Paint.valueOf("red"));
        objectA.setX(100);
        objectA.setY(100);
        objectA.setRotate(10);
        objectA.setSmooth(true);

        Rectangle objectB = new Rectangle(80, 40);
        objectB.setFill(Paint.valueOf("blue"));
        objectB.setRotate(-10);
        objectB.setX(115);
        objectB.setY(50);

        paneB.getChildren().add(objectB);
        paneA.getChildren().addAll(objectA, paneB);

        Bounds objA = objectA.localToScene(objectA.getBoundsInLocal());
        Bounds objB = objectB.localToScene(objectB.getBoundsInLocal());

        if (objA.intersects(objB)) {
            label.setText("ObjectA intersects ObjectB");
        } else {
            label.setText("ObjectA does not intersect ObjectB");
        }

        BorderPane root = new BorderPane(paneA);
        root.setBottom(label);
        Scene scene = new Scene(root, 300, 250);

        primaryStage.setTitle("Collision Detection");
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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

}