hg/html~demo: chess/src/main/java/org/apidesign/html/demo/chess/BoardModel.java@bc0094a5f88c

     1 /**

     2  * The MIT License (MIT)

     3  *

     4  * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>

     5  *

     6  * Permission is hereby granted, free of charge, to any person obtaining a copy

     7  * of this software and associated documentation files (the "Software"), to deal

     8  * in the Software without restriction, including without limitation the rights

     9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

    10  * copies of the Software, and to permit persons to whom the Software is

    11  * furnished to do so, subject to the following conditions:

    12  *

    13  * The above copyright notice and this permission notice shall be included in

    14  * all copies or substantial portions of the Software.

    15  *

    16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

    17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

    18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

    19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

    20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

    21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

    22  * THE SOFTWARE.

    23  */

    24 package org.apidesign.html.demo.chess;

    26 import java.util.Arrays;

    27 import java.util.Collections;

    28 import java.util.List;

    29 import java.util.Timer;

    30 import java.util.TimerTask;

    31 import net.java.html.json.ComputedProperty;

    32 import net.java.html.json.Function;

    33 import net.java.html.json.Model;

    34 import net.java.html.json.ModelOperation;

    35 import net.java.html.json.OnPropertyChange;

    36 import net.java.html.json.Property;

    37 import net.java.html.sound.AudioClip;

    39 @Model(className="Board", properties={

    40     @Property(name = "player", type = String.class),

    41     @Property(name = "gameId", type = String.class),

    42     @Property(name = "whitePlayer", type = String.class),

    43     @Property(name = "blackPlayer", type = String.class),

    44     @Property(name = "alertMessage", type = String.class),

    45     @Property(name = "status", type = String.class),

    46     @Property(name = "rows", type = Row.class, array = true),

    47     @Property(name = "turn", type = Color.class),

    48     @Property(name = "moves", type = Move.class, array = true),

    49     @Property(name = "pendingMove", type = Move.class),

    50     @Property(name = "active", type = boolean.class),

    51 })

    52 public class BoardModel {

    53     @ComputedProperty static String title(String status, String gameId) {

    54         String t = status != null ? status : gameId;

    55         if (t != null && t.length() > 10) {

    56             return t.substring(0, 10);

    57         }

    58         return t;

    59     }

    61     @ModelOperation static void updateSummary(Board b, String summary) {

    62         if (summary != null) {

    63             b.setStatus(summary);

    64         }

    65     }

    67     private static final AudioClip MOVE = AudioClip.create("sounds/move.mp3");

    68     @OnPropertyChange("moves") static void playMove() {

    69         MOVE.play();

    70     }

    72     private static final AudioClip CHECK = AudioClip.create("sounds/check.mp3");

    73     private static final AudioClip CHECKMATE = AudioClip.create("sounds/checkmate.mp3");

    75     @Function static void selected(Board b, Square data) {

    76         Square previoslySelected = findSelectedSquare(b);

    77         if (previoslySelected == null) {

    78             if (data.getPiece() != null && data.getPieceColor() == b.getTurn()) {

    79                 data.setSelected(true);

    80                 Rules.computeAccessible(b, data);

    81             }

    82         } else {

    83             if (previoslySelected == data) {

    84                 data.setSelected(false);

    85                 Rules.computeAccessible(b, null);

    86                 return;

    87             }

    88             if (data.getPiece() != null && data.getPieceColor() == previoslySelected.getPieceColor()) {

    89                 previoslySelected.setSelected(false);

    90                 data.setSelected(true);

    91                 Rules.computeAccessible(b, data);

    92                 return;

    93             }

    94             if (data.isAccessible()) {

    95                 previoslySelected.setSelected(false);

    97                 Move newMove = new Move();

    98                 newMove.setFrom(previoslySelected.getPosition());

    99                 newMove.setTo(data.getPosition());

   100                 newMove.setRound(b.getMoves().size() / 2 + 1);

   101                 newMove.setPiece(previoslySelected.getPiece());

   102                 newMove.setTurn(previoslySelected.getPieceColor());

   103                 newMove.setTakes(data.getPiece() != null);

   104                 b.getMoves().add(newMove);

   105                 b.setPendingMove(newMove);

   107                 data.setPieceColor(previoslySelected.getPieceColor());

   108                 data.setPiece(previoslySelected.getPiece());

   109                 previoslySelected.setPiece(null);

   110                 previoslySelected.setPieceColor(null);

   111                 b.setTurn(b.getTurn() == Color.W ? Color.B : Color.W);

   112                 Rules.computeAccessible(b, null);

   113             }

   114         }

   115     }

   117     static class NextMove extends TimerTask {

   118         private static final Timer T = new Timer("Animate moves");

   119         private final Board b;

   120         private final Move m;

   122         public NextMove(Board b, Move m) {

   123             this.b = b;

   124             this.m = m;

   125             T.schedule(this, 1000);

   126         }

   129         @Override

   130         public void run() {

   131             b.showPosition(m);

   132         }

   133     }

   135     @ModelOperation @Function static void showPosition(Board b, Move data) {

   136         Rules.initBoard(b);

   137         boolean found = false;

   138         for (Move m : b.getMoves()) {

   139             if (found) {

   140                 b.setTurn(null);

   141                 new NextMove(b, m);

   142                 return;

   143             }

   144             Square from = findSquare(b, (char)m.getFrom().getX(), m.getFrom().getY());

   145             Square to = findSquare(b, (char)m.getTo().getX(), m.getTo().getY());

   146             to.setPiece(from.getPiece());

   147             to.setPieceColor(from.getPieceColor());

   148             from.setPiece(null);

   149             from.setPieceColor(null);

   150             if (m == data) {

   151                 found = true;

   152             }

   153         }

   154         b.setTurn(b.getMoves().size() % 2 == 0 ? Color.W : Color.B);

   155     }

   159     @Function static void rotateBoard(Board b) {

   160         Collections.reverse(b.getRows());

   161         for (Row r : b.getRows()) {

   162             Collections.reverse(r.getColumns());

   163         }

   164         Square sq = findSelectedSquare(b);

   165         if (sq != null) {

   166             sq.setSelected(false);

   167             Rules.computeAccessible(b, null);

   168         }

   169     }

   171     @ComputedProperty static boolean whiteTurn(Color turn) {

   172         return turn == Color.W;

   173     }

   175     @ComputedProperty static boolean blackTurn(Color turn) {

   176         return turn == Color.B;

   177     }

   179     @ComputedProperty static List<String> columnNames(List<Row> rows) {

   180         boolean whiteDown = rows.isEmpty() || rows.get(0).getY() == 8;

   181         String[] arr = new String[8];

   182         for (int i = 0; i < 8; i++) {

   183             String s;

   184             if (whiteDown) {

   185                 s = "" + (char)('A' + i);

   186             } else {

   187                 s = "" + (char)('H' - i);

   188             }

   189             arr[i] = s;

   190         }

   191         return Arrays.asList(arr);

   192     }

   194     static Square findSquare(Board b, char column, int row) {

   195         for (Row r : b.getRows()) {

   196             for (Square square : r.getColumns()) {

   197                 if (square.getPosition().getX() == column && square.getPosition().getY() == row) {

   198                     return square;

   199                 }

   200             }

   201         }

   202         return null;

   203     }

   205     private static Square findSquare(Board b, Position to) {

   206         return findSquare(b, (char)to.getX(), to.getY());

   207     }

   209     static Square findSelectedSquare(Board b) {

   210         for (Row row : b.getRows()) {

   211             for (Square square : row.getColumns()) {

   212                 if (square.isSelected()) {

   213                     return square;

   214                 }

   215             }

   216         }

   217         return null;

   218     }

   220     static void moveUpdate(

   221         final Board b, final Move move,

   222         final List<String> whites, final List<String> blacks,

   223         final Color turn, Object alert

   224     ) {

   225         final Square from = BoardModel.findSquare(b, move.getFrom());

   226         final Square to = BoardModel.findSquare(b, move.getTo());

   227         move.setPiece(from.getPiece());

   228         move.setTurn(from.getPieceColor());

   229         if (to.getPiece() != null) {

   230             move.setTakes(true);

   231         }

   232         move.setRound(b.getMoves().size() / 2 + 1);

   233         b.getMoves().add(move);

   234         Rules.initBoard(b, whites, blacks, turn);

   235     }

   237     @Model(className="Row", properties = {

   238         @Property(name = "columns", type = Square.class, array = true)

   239     })

   240     static class RowsImpl {

   241         @ComputedProperty static int y(List<Square> columns) {

   242             return columns.isEmpty() ? 0 : columns.get(0).getY();

   243         }

   244     }

   246     enum PieceType {

   247         PAWN(5), ROCK(2), KNIGHT(4), BISHOP(3), QUEEN(1), KING(0);

   249         final int entityIndex;

   251         PieceType(int ei) {

   252             this.entityIndex = ei;

   253         }

   255         static PieceType fromNotation(char notation) {

   256             switch (notation) {

   257                 case 'R': return ROCK;

   258                 case 'N': return KNIGHT;

   259                 case 'B': return BISHOP;

   260                 case 'Q': return QUEEN;

   261                 case 'K': return KING;

   262                 case 'P': return PAWN;

   263             }

   264             throw new IllegalStateException("Unexpected: " + notation);

   265         }

   267         String computeEntity(Color color) {

   268             if (color == null) {

   269                 color = Color.W;

   270             }

   271             int base;

   272             switch (color) {

   273                 case W: base = 12; break;

   274                 case B: base = 18; break;

   275                 default:

   276                     throw new AssertionError();

   277             }

   278             return "&#98" + String.valueOf(base + entityIndex) + ";";

   279         }

   280     }

   282     @Model(className="Position", properties = {

   283         @Property(name = "x", type = char.class),

   284         @Property(name = "y", type = int.class),

   285     })

   286     static class PositionImpl {

   287         @ComputedProperty static String location(int x, int y) {

   288             return "" + (char)(x - 'A' + 'a') + y;

   289         }

   290     }

   292     @Model(className="Square", properties = {

   293         @Property(name = "position", type = Position.class),

   294         @Property(name = "color", type = Color.class),

   295         @Property(name = "piece", type = PieceType.class),

   296         @Property(name = "pieceColor", type = Color.class),

   297         @Property(name = "selected", type = boolean.class),

   298         @Property(name = "accessible", type = boolean.class),

   299     })

   300     static class SquareModel {

   301         @ComputedProperty static String pieceEntity(

   302             PieceType piece, Color pieceColor

   303         ) {

   304             if (piece == null) {

   305                 return "";

   306             }

   307             return piece.computeEntity(pieceColor);

   308         }

   310         @ComputedProperty static String squareColor(

   311             Color color, boolean selected, boolean accessible

   312         ) {

   313             if (selected) {

   314                 return "selected";

   315             }

   316             if (accessible) {

   317                 return "accessible";

   318             }

   320             if (color == null) {

   321                 return "";

   322             } else {

   323                 if (color == Color.W) {

   324                     return "white";

   325                 } else {

   326                     return "black";

   327                 }

   328             }

   329         }

   331         @ComputedProperty static char x(Position position) {

   332             return position == null ? 'A' : position.getX();

   333         }

   335         @ComputedProperty static int y(Position position) {

   336             return position == null ? 1 : position.getY();

   337         }

   338     }

   340     @Model(className = "Move", properties = {

   341         @Property(name = "round", type = int.class),

   342         @Property(name = "turn", type = Color.class),

   343         @Property(name = "piece", type = PieceType.class),

   344         @Property(name = "from", type = Position.class),

   345         @Property(name = "to", type = Position.class),

   346         @Property(name = "promoted", type = PieceType.class),

   347         @Property(name = "takes", type = boolean.class),

   348         @Property(name = "check", type = boolean.class),

   349     })

   350     static class MoveImpl {

   351         @ComputedProperty static boolean whiteMove(Color turn) {

   352             return turn == Color.W;

   353         }

   355         @ComputedProperty static String html(

   356             Position from, Position to, boolean takes, PieceType piece, Color turn

   357         ) {

   358             if (from == null || to == null) {

   359                 return "";

   360             }

   361             StringBuilder sb = new StringBuilder();

   362             if (piece != null && piece != PieceType.PAWN) {

   363                 sb.append(piece.computeEntity(turn));

   364             }

   366             sb.append(from.getLocation());

   367             if (takes) {

   368                 sb.append("x");

   369             }

   370             sb.append(to.getLocation());

   371             return sb.toString();

   372         }

   374         static Move valueOf(String move) {

   375             move = move.toUpperCase();

   376             Move m = new Move();

   377             {

   378                 Position p = new Position();

   379                 p.setX(move.charAt(0));

   380                 p.setY(move.charAt(1) - '0');

   381                 m.setFrom(p);

   382             }

   383             {

   384                 Position p = new Position();

   385                 p.setX(move.charAt(2));

   386                 p.setY(move.charAt(3) - '0');

   387                 m.setTo(p);

   388             }

   389             return m;

   390         }

   391     }

   392 }

author	Jaroslav Tulach <jtulach@netbeans.org>
	Wed, 25 Sep 2013 04:18:47 +0200
branch	chess
changeset 53	bc0094a5f88c
parent 52	6bb4070d2c20
child 244	cea2063fd0f9
permissions	-rw-r--r--