Implemented Code Behind and VM file.

src/main/java/Assignments/A1/models/Board.java

@@ -249,10 +249,9 @@ public class Board {
 //    }
     @Override
     public String toString() {
-        String result = "";
-        for (int i = 0; i < 9; i++) {
-            result += pieces[i] + " ";
-        }
+        String result = pieces[0] + " " + pieces[1] + " " + pieces[2] + "\n"
+                + pieces[3] + " " + pieces[4] + " " + pieces[5] + "\n"
+                + pieces[6] + " " + pieces[7] + " " + pieces[8];
         return result;
     }
 

src/main/java/Assignments/A1/view/BoardViewCodeBehind.java

@@ -0,0 +1,101 @@
+package Assignments.A1.view;
+
+import Assignments.A1.models.BoardNode;
+import javafx.event.ActionEvent;
+import javafx.fxml.FXML;
+import javafx.scene.control.*;
+
+public class BoardViewCodeBehind {
+
+    @FXML
+    private TreeView<BoardNode> algorithm_results;
+
+    @FXML
+    private Label current_board;
+
+    @FXML
+    private Button generate_board;
+
+    @FXML
+    private MenuButton menu_alg;
+
+    @FXML
+    private ToggleButton showSolvedPath;
+
+    @FXML
+    private MenuItem AStar;
+
+    @FXML
+    private MenuItem BFS;
+
+    @FXML
+    private MenuItem DFS;
+
+    @FXML
+    private MenuItem UCS;
+
+    @FXML
+    private Button solve_button;
+
+    @FXML
+    private ProgressBar solving_prog;
+
+    @FXML
+    private Label gen_board_err;
+
+    @FXML
+    private Label no_solv_alg_err;
+
+    private MainViewModel viewModel;
+
+    public BoardViewCodeBehind() {
+        this.viewModel = new MainViewModel();
+    }
+
+    @FXML
+    private void initialize() {
+        this.current_board.textProperty().bindBidirectional(viewModel.getCurrentBoardProperty());
+        this.DFS.disableProperty().bindBidirectional(viewModel.DFSProperty());
+        this.UCS.disableProperty().bindBidirectional(viewModel.UCSProperty());
+        this.BFS.disableProperty().bindBidirectional(viewModel.BFSProperty());
+        this.AStar.disableProperty().bindBidirectional(viewModel.AStarProperty());
+        this.gen_board_err.visibleProperty().bindBidirectional(viewModel.genBoardErrProperty());
+        this.no_solv_alg_err.visibleProperty().bindBidirectional(viewModel.solvingAlgErrProperty());
+    }
+
+    public void onGenerateBoard(ActionEvent actionEvent) {
+        this.viewModel.generateBoard();
+    }
+
+    public void showSolvedPath(ActionEvent actionEvent) {
+
+    }
+
+    public void onSolveButton(ActionEvent actionEvent) {
+        viewModel.solveBoard();
+    }
+
+    public void onAlgChange(ActionEvent actionEvent) {
+
+    }
+
+    public void onDFS(ActionEvent actionEvent) {
+        viewModel.setSelectedAlg("DFS");
+        this.menu_alg.textProperty().set(this.menu_alg.getItems().get(0).textProperty().get());
+    }
+
+    public void onUCS(ActionEvent actionEvent) {
+        viewModel.setSelectedAlg("UCS");
+        this.menu_alg.textProperty().set(this.menu_alg.getItems().get(1).textProperty().get());
+    }
+
+    public void onBFS(ActionEvent actionEvent) {
+        viewModel.setSelectedAlg("BFS");
+        this.menu_alg.textProperty().set(this.menu_alg.getItems().get(2).textProperty().get());
+    }
+
+    public void onAStar(ActionEvent actionEvent) {
+        viewModel.setSelectedAlg("AStar");
+        this.menu_alg.textProperty().set(this.menu_alg.getItems().get(3).textProperty().get());
+    }
+}

src/main/java/Assignments/A1/view/MainViewModel.java

@@ -0,0 +1,112 @@
+package Assignments.A1.view;
+
+import Assignments.A1.models.Board;
+import Assignments.A1.models.BoardGenerator;
+import Assignments.A1.models.BoardNode;
+import Assignments.A1.models.Solver;
+import Assignments.A1.solving_algorithms.AStar;
+import Assignments.A1.solving_algorithms.BFS;
+import Assignments.A1.solving_algorithms.UCS;
+import javafx.beans.property.*;
+
+public class MainViewModel {
+
+    private StringProperty currentBoardProperty, algSpeedProperty;
+    private BooleanProperty showSolvedPath, DFS, UCS, BFS, AStar, solvingAlgErr, genBoardErr;
+    private DoubleProperty solvingProgressProperty;
+    private String selectedAlg;
+
+    private BoardNode current = new BoardNode(new Board(), null);
+
+    public MainViewModel() {
+        this.currentBoardProperty = new SimpleStringProperty();
+        this.algSpeedProperty = new SimpleStringProperty();
+        this.showSolvedPath = new SimpleBooleanProperty();
+        this.solvingProgressProperty = new SimpleDoubleProperty();
+        this.DFS = new SimpleBooleanProperty();
+        this.UCS = new SimpleBooleanProperty();
+        this.BFS = new SimpleBooleanProperty();
+        this.AStar = new SimpleBooleanProperty();
+
+        this.solvingAlgErr = new SimpleBooleanProperty();
+        this.genBoardErr = new SimpleBooleanProperty();
+        this.solvingAlgErr.set(false);
+        this.genBoardErr.set(false);
+    }
+
+    public String getSelectedAlg() {
+        return this.selectedAlg;
+    }
+
+    public void setSelectedAlg(String value) {
+        this.selectedAlg = value;
+        this.DFS.set(value.equals("DFS"));
+        this.UCS.set(value.equals("UCS"));
+        this.BFS.set(value.equals("BFS"));
+        this.AStar.set(value.equals("AStar"));
+    }
+
+    public StringProperty getCurrentBoardProperty() {
+        return this.currentBoardProperty;
+    }
+
+    public void generateBoard() {
+        this.current = new BoardNode(BoardGenerator.generateBoard(), null);
+        currentBoardProperty.set(this.current.board.toString());
+    }
+
+    public void solveBoard() {
+        if (selectedAlg == null || selectedAlg.isEmpty()) {
+            this.solvingAlgErr.setValue(true);
+            return;
+        }
+        this.solvingAlgErr.setValue(false);
+        if (current.board.equals(new Board())) {
+            this.genBoardErr.setValue(true);
+            return;
+        }
+        this.genBoardErr.setValue(false);
+
+        Solver solver = null;
+        if (DFS.getValue()) {
+//            solver = new DFS();
+        } else if (UCS.getValue()) {
+            solver = new UCS();
+        } else if (BFS.getValue()) {
+            solver = new BFS();
+        } else if (AStar.getValue()) {
+            solver = new AStar();
+        }
+
+        BoardNode solved = solver.traverse(this.current.board);
+
+        System.out.println(solved);
+    }
+
+
+    public BooleanProperty DFSProperty() {
+        return DFS;
+    }
+
+    public BooleanProperty UCSProperty() {
+        return UCS;
+    }
+
+    public BooleanProperty BFSProperty() {
+        return BFS;
+    }
+
+    public BooleanProperty AStarProperty() {
+        return AStar;
+    }
+
+    public BooleanProperty solvingAlgErrProperty() {
+        return solvingAlgErr;
+    }
+
+    public BooleanProperty genBoardErrProperty() {
+        return genBoardErr;
+    }
+
+
+}