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






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 12 at 7:32









      Chad E Galloway

      12




      12





























          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53257602%2fhow-do-i-modify-and-redraw-a-gridpane-in-javafx%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown






























          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.





          Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


          Please pay close attention to the following guidance:


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53257602%2fhow-do-i-modify-and-redraw-a-gridpane-in-javafx%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Florida Star v. B. J. F.

          Danny Elfman

          Retrieve a Users Dashboard in Tumblr with R and TumblR. Oauth Issues