How do I modify and redraw a GridPane in JavaFX












0














I am trying to create the standard mouse maze solver for a class and I am having troubles with the graphical part. Solving the maze is easy but updating the mouse graphically as he moves is proving tough to do. Below is a stripped down version of what I have.



@Override
public void start(Stage primaryStage) throws IOException {

Maze maze = new Maze();
maze.loadMazeFromFile("maze_input.txt");
GridPane mazeGrid = maze.drawGrid();
mazeGrid.setAlignment(Pos.CENTER);

StackPane root = new StackPane();
root.getChildren().add(mazeGrid);

Scene scene = new Scene(root, (maze.rows()*10)+40, (maze.columns()*10)+130);

primaryStage.setTitle("Mad Mouse Maze");
primaryStage.setScene(scene);
primaryStage.show();

maze.solveMaze();
}


A simple window opens with my maze displayed in it and the mouse can solve the maze as seen in the console output, all that works fine. What I need to do and can't figure out how to do is repeat mazeGrid = maze.drawGrid(); every time the mouse moves within maze.solveMaze(); and redraw the GridPane representing the maze. How do I get access to mazeGrid from within a maze object? Do I create some type of event for the grid to watch for and fire it, if so how? Getting access to elements in a window is extremely difficult in JavaFX which tells me I am doing something wrong. please help.










share|improve this question



























    0














    I am trying to create the standard mouse maze solver for a class and I am having troubles with the graphical part. Solving the maze is easy but updating the mouse graphically as he moves is proving tough to do. Below is a stripped down version of what I have.



    @Override
    public void start(Stage primaryStage) throws IOException {

    Maze maze = new Maze();
    maze.loadMazeFromFile("maze_input.txt");
    GridPane mazeGrid = maze.drawGrid();
    mazeGrid.setAlignment(Pos.CENTER);

    StackPane root = new StackPane();
    root.getChildren().add(mazeGrid);

    Scene scene = new Scene(root, (maze.rows()*10)+40, (maze.columns()*10)+130);

    primaryStage.setTitle("Mad Mouse Maze");
    primaryStage.setScene(scene);
    primaryStage.show();

    maze.solveMaze();
    }


    A simple window opens with my maze displayed in it and the mouse can solve the maze as seen in the console output, all that works fine. What I need to do and can't figure out how to do is repeat mazeGrid = maze.drawGrid(); every time the mouse moves within maze.solveMaze(); and redraw the GridPane representing the maze. How do I get access to mazeGrid from within a maze object? Do I create some type of event for the grid to watch for and fire it, if so how? Getting access to elements in a window is extremely difficult in JavaFX which tells me I am doing something wrong. please help.










    share|improve this question

























      0












      0








      0







      I am trying to create the standard mouse maze solver for a class and I am having troubles with the graphical part. Solving the maze is easy but updating the mouse graphically as he moves is proving tough to do. Below is a stripped down version of what I have.



      @Override
      public void start(Stage primaryStage) throws IOException {

      Maze maze = new Maze();
      maze.loadMazeFromFile("maze_input.txt");
      GridPane mazeGrid = maze.drawGrid();
      mazeGrid.setAlignment(Pos.CENTER);

      StackPane root = new StackPane();
      root.getChildren().add(mazeGrid);

      Scene scene = new Scene(root, (maze.rows()*10)+40, (maze.columns()*10)+130);

      primaryStage.setTitle("Mad Mouse Maze");
      primaryStage.setScene(scene);
      primaryStage.show();

      maze.solveMaze();
      }


      A simple window opens with my maze displayed in it and the mouse can solve the maze as seen in the console output, all that works fine. What I need to do and can't figure out how to do is repeat mazeGrid = maze.drawGrid(); every time the mouse moves within maze.solveMaze(); and redraw the GridPane representing the maze. How do I get access to mazeGrid from within a maze object? Do I create some type of event for the grid to watch for and fire it, if so how? Getting access to elements in a window is extremely difficult in JavaFX which tells me I am doing something wrong. please help.










      share|improve this question













      I am trying to create the standard mouse maze solver for a class and I am having troubles with the graphical part. Solving the maze is easy but updating the mouse graphically as he moves is proving tough to do. Below is a stripped down version of what I have.



      @Override
      public void start(Stage primaryStage) throws IOException {

      Maze maze = new Maze();
      maze.loadMazeFromFile("maze_input.txt");
      GridPane mazeGrid = maze.drawGrid();
      mazeGrid.setAlignment(Pos.CENTER);

      StackPane root = new StackPane();
      root.getChildren().add(mazeGrid);

      Scene scene = new Scene(root, (maze.rows()*10)+40, (maze.columns()*10)+130);

      primaryStage.setTitle("Mad Mouse Maze");
      primaryStage.setScene(scene);
      primaryStage.show();

      maze.solveMaze();
      }


      A simple window opens with my maze displayed in it and the mouse can solve the maze as seen in the console output, all that works fine. What I need to do and can't figure out how to do is repeat mazeGrid = maze.drawGrid(); every time the mouse moves within maze.solveMaze(); and redraw the GridPane representing the maze. How do I get access to mazeGrid from within a maze object? Do I create some type of event for the grid to watch for and fire it, if so how? Getting access to elements in a window is extremely difficult in JavaFX which tells me I am doing something wrong. please help.







      javafx gridpane






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      asked Nov 12 at 7:32









      Chad E Galloway

      12




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