Circle not moving problems

Question

So basically i am making a game in which the circle will move in the four directions. When the "S" or "RIGHT" key is pressed once, the circle will move till it reaches the maxX of the pane. And when i press the "A" key or "LEFT", the circle will move till it reaches minX of pane. The "UP" or "W" and "DOWN" or "Z" keys also follow similar logic. If it get to maxY of pane it stops till another key is pressed and vice versa.

Here is the code for the controller class

    @FXML
    private Pane board;

    private BooleanProperty wPressed = new SimpleBooleanProperty();
    private BooleanProperty aPressed = new SimpleBooleanProperty();
    private BooleanProperty zPressed = new SimpleBooleanProperty();
    private BooleanProperty sPressed = new SimpleBooleanProperty();

    private BooleanBinding keyPressed = wPressed.or(aPressed).or(zPressed).or(sPressed);

    


    private Circle circle = new Circle(20,40,20);




    private Rectangle[][] grid;
    private int size = 960;
    private int spots = 16;
    private int squareSize = size / spots;


    @FXML
    void handleB(ActionEvent event) {

    }

    AnimationTimer timer = new AnimationTimer() {

        double deltaX = 2;
        double deltaY = 2;
        
        @Override
        public void handle(long timestamp) {
            double rectX = circle.getLayoutX();
            Bounds bounds = board.getBoundsInLocal();


           

            double maxX = bounds.getMaxX();
            double maxY = bounds.getMaxY();
            double minX = bounds.getMinX();
            double minY = bounds.getMinY();

           

            if (circle.getLayoutX() >= ( maxX- circle.getRadius())) {
                deltaX = 0;
                //System.out.println(rect.getLayoutX());
            }
            if (circle.getLayoutY() >= (maxY - circle.getRadius())) {
                deltaY = 0;
            }


            if (circle.getLayoutX() <= ( minX + circle.getRadius())) {
                deltaX = 0;
                //System.out.println(rect.getLayoutX());
            }
            if (circle.getLayoutY() <= ( minY + circle.getRadius())) {
                deltaY = 0;
            }

            if(wPressed.get()) {
                circle.setLayoutY(circle.getLayoutY() - deltaY);
            }

            if(zPressed.get()){
                circle.setLayoutY(circle.getLayoutY() + deltaY);
            }

            if(aPressed.get()){
                circle.setLayoutX(circle.getLayoutX() - deltaX);
            }

            if(sPressed.get()){
                circle.setLayoutX(circle.getLayoutX() + deltaX);
            }



        }
    };


    @Override
    public void initialize(URL url, ResourceBundle resourceBundle) {

        
        grid = new Rectangle[spots][spots];
        for (int i = 0; i < size; i += squareSize) {
            for (int j = 0; j < size; j += squareSize) {
                Rectangle r = new Rectangle(i, j, squareSize, squareSize);
                grid[i / squareSize][j / squareSize] = r;
                // Filling each grid with the cell image
                r.setFill(Color.GRAY);
                r.setStroke(Color.BLACK);
                board.getChildren().add(r);
            }
        }

        board.getChildren().addAll(circle);


        movementSetup();

        keyPressed.addListener(((observableValue, aBoolean, t1) -> {
            if(!aBoolean){
                timer.start();
            } else {
                timer.stop();
            }
        }));




    }




    private void movementSetup() {
        board.setOnKeyPressed(e -> {
            if(e.getCode() == KeyCode.UP || e.getCode() == KeyCode.W ) {
                zPressed.set(false);
                sPressed.set(false);
                aPressed.set(false);
                wPressed.set(true);

            }

            if(e.getCode() == KeyCode.A || e.getCode() == KeyCode.LEFT) {
                zPressed.set(false);
                sPressed.set(false);
                wPressed.set(false);
                aPressed.set(true);
            }

            if(e.getCode() == KeyCode.Z || e.getCode() == KeyCode.DOWN) {
                wPressed.set(false);
                aPressed.set(false);
                sPressed.set(false);
                zPressed.set(true);
            }

            if(e.getCode() == KeyCode.S || e.getCode() == KeyCode.RIGHT) {
                wPressed.set(false);
                aPressed.set(false);
                zPressed.set(false);
                sPressed.set(true);
            }
        });


    }


}

** I did the pane in scenebuilder which i inserted it into an anchorpane as well**

The fxml file is below (ui.fxml)

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.Button?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.layout.Pane?>

<AnchorPane maxHeight="1000.0" maxWidth="1200.0" minHeight="0.0" minWidth="0.0" prefHeight="1000.0" prefWidth="1200.0" xmlns="http://javafx.com/javafx/17" xmlns:fx="http://javafx.com/fxml/1" fx:controller="fx.game.Controller">
   <children>
      <Pane fx:id="board" maxHeight="960.0" maxWidth="960.0" minHeight="0.0" minWidth="0.0" prefHeight="960.0" prefWidth="960.0">
         <children>
            <Button layoutX="367.0" layoutY="934.0" mnemonicParsing="false" onAction="#handleB" text="Button" />
         </children>
      </Pane>
   </children>
</AnchorPane>

Lastly the main class

package fx.game;

import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;

import java.io.IOException;

public class HelloApplication extends Application {
    @Override
    public void start(Stage stage) throws IOException {
        Parent root = FXMLLoader.load(getClass().getResource("ui.fxml"));
        stage.setTitle("Hello World");
        stage.setScene(new Scene(root));
        stage.show();
    }

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

Am really bad at game development I might be doing it completely wrong Anyone who can give me a better solution will be appreciated