jtulach@63: /**
jtulach@63:  * The MIT License (MIT)
jtulach@63:  *
jtulach@63:  * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jtulach@63:  *
jtulach@63:  * Permission is hereby granted, free of charge, to any person obtaining a copy
jtulach@63:  * of this software and associated documentation files (the "Software"), to deal
jtulach@63:  * in the Software without restriction, including without limitation the rights
jtulach@63:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
jtulach@63:  * copies of the Software, and to permit persons to whom the Software is
jtulach@63:  * furnished to do so, subject to the following conditions:
jtulach@63:  *
jtulach@63:  * The above copyright notice and this permission notice shall be included in
jtulach@63:  * all copies or substantial portions of the Software.
jtulach@63:  *
jtulach@63:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
jtulach@63:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
jtulach@63:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
jtulach@63:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
jtulach@63:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
jtulach@63:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
jtulach@63:  * THE SOFTWARE.
jtulach@63:  */
jtulach@63: package org.apidesign.demo.minesweeper;
jtulach@63: 
jtulach@63: import java.util.ArrayList;
jtulach@63: import java.util.List;
jtulach@63: import java.util.Random;
jtulach@63: import net.java.html.json.ComputedProperty;
jtulach@63: import net.java.html.json.Function;
jtulach@63: import net.java.html.json.Model;
jtulach@63: import net.java.html.json.ModelOperation;
jtulach@63: import net.java.html.json.Property;
jtulach@63: 
jtulach@63: /** Model of the mine field.
jtulach@63:  */
jtulach@63: @Model(className = "Mines", properties = {
jtulach@63:     @Property(name = "state", type = MinesModel.GameState.class),
jtulach@63:     @Property(name = "rows", type = Row.class, array = true),
jtulach@63: })
jtulach@63: final class MinesModel {
jtulach@63:     enum GameState {
jtulach@63:         IN_PROGRESS, WON, LOST;
jtulach@63:     }
jtulach@63:     
jtulach@63:     @Model(className = "Row", properties = {
jtulach@63:         @Property(name = "columns", type = Square.class, array = true)
jtulach@63:     })
jtulach@63:     static class RowModel {
jtulach@63:     }
jtulach@63: 
jtulach@63:     @Model(className = "Square", properties = {
jtulach@63:         @Property(name = "state", type = SquareType.class),
jtulach@63:         @Property(name = "mine", type = boolean.class)
jtulach@63:     })
jtulach@63:     static class SquareModel {
jtulach@63:         @ComputedProperty static String text(SquareType state) {
jtulach@63:             if (state == null) return " ";
jtulach@63:             switch (state) {
jtulach@63:                 case MINE: return "B";
jtulach@63:                 case UNKNOWN: return "?";
jtulach@63:                 case N_0: return " ";
jtulach@63:             }
jtulach@63:             return "" + state.ordinal();
jtulach@63:         }
jtulach@63:     }
jtulach@63:     
jtulach@63:     enum SquareType {
jtulach@64:         
jtulach@63:         N_0, N_1, N_2, N_3, N_4, N_5, N_6, N_7, N_8,
jtulach@64:         UNKNOWN, MINE;
jtulach@64:         
jtulach@64:         final boolean isVisible() {
jtulach@64:             return name().startsWith("N_");
jtulach@64:         }
jtulach@64: 
jtulach@64:         final SquareType moreBombs() {
jtulach@64:             if (this == MINE || this == UNKNOWN) {
jtulach@64:                 return this;
jtulach@64:             }
jtulach@64:             return values()[ordinal() + 1];
jtulach@64:         }
jtulach@63:     }
jtulach@63:     
jtulach@63:     @ModelOperation static void init(Mines model, int width, int height, int mines) {
jtulach@63:         List<Row> rows = new ArrayList<Row>(height);
jtulach@63:         for (int y = 0; y < height; y++) {
jtulach@63:             Square[] columns = new Square[width];
jtulach@63:             for (int x = 0; x < width; x++) {
jtulach@63:                 columns[x] = new Square(SquareType.UNKNOWN, false);
jtulach@63:             }
jtulach@63:             rows.add(new Row(columns));
jtulach@63:         }
jtulach@63:         
jtulach@63:         Random r = new Random();
jtulach@63:         while (mines > 0) {
jtulach@63:             int x = r.nextInt(width);
jtulach@63:             int y = r.nextInt(height);
jtulach@63:             final Square s = rows.get(y).getColumns().get(x);
jtulach@63:             if (s.isMine()) {
jtulach@63:                 continue;
jtulach@63:             }
jtulach@63:             s.setMine(true);
jtulach@63:             mines--;
jtulach@63:         }
jtulach@63: 
jtulach@63:         model.setState(GameState.IN_PROGRESS);
jtulach@63:         model.getRows().clear();
jtulach@63:         model.getRows().addAll(rows);
jtulach@63:     }
jtulach@63:     
jtulach@64:     @ModelOperation static void computeMines(Mines model) {
jtulach@64:         List<Integer> xBombs = new ArrayList<Integer>();
jtulach@64:         List<Integer> yBombs = new ArrayList<Integer>();
jtulach@64:         final List<Row> rows = model.getRows();
jtulach@64:         for (int y = 0; y < rows.size(); y++) {
jtulach@64:             final List<Square> columns = rows.get(y).getColumns();
jtulach@64:             for (int x = 0; x < columns.size(); x++) {
jtulach@64:                 Square sq = columns.get(x);
jtulach@64:                 if (sq.isMine()) {
jtulach@64:                     xBombs.add(x);
jtulach@64:                     yBombs.add(y);
jtulach@64:                 }
jtulach@64:                 if (sq.getState().isVisible()) {
jtulach@64:                     sq.setState(SquareType.N_0);
jtulach@64:                 }
jtulach@64:             }
jtulach@64:         }
jtulach@64:         for (int i = 0; i < xBombs.size(); i++) {
jtulach@64:             int x = xBombs.get(i);
jtulach@64:             int y = yBombs.get(i);
jtulach@64:             
jtulach@64:             incrementAround(model, x, y);
jtulach@64:         }
jtulach@64:     }
jtulach@64:     
jtulach@64:     private static void incrementAround(Mines model, int x, int y) {
jtulach@64:         incrementAt(model, x - 1, y - 1);
jtulach@64:         incrementAt(model, x - 1, y);
jtulach@64:         incrementAt(model, x - 1, y + 1);
jtulach@64: 
jtulach@64:         incrementAt(model, x + 1, y - 1);
jtulach@64:         incrementAt(model, x + 1, y);
jtulach@64:         incrementAt(model, x + 1, y + 1);
jtulach@64:         
jtulach@64:         incrementAt(model, x, y - 1);
jtulach@64:         incrementAt(model, x, y + 1);
jtulach@64:     }
jtulach@64:     
jtulach@64:     private static void incrementAt(Mines model, int x, int y) {
jtulach@64:         if (y >= 0 && y < model.getRows().size()) {
jtulach@64:             Row r = model.getRows().get(y);
jtulach@64:             if (x >= 0 && x < r.getColumns().size()) {
jtulach@64:                 Square sq = r.getColumns().get(x);
jtulach@64:                 sq.setState(sq.getState().moreBombs());
jtulach@64:             }
jtulach@64:         }
jtulach@64:     }
jtulach@64:     
jtulach@63:     static void showAllBombs(Mines model) {
jtulach@63:         for (Row row : model.getRows()) {
jtulach@63:             for (Square square : row.getColumns()) {
jtulach@63:                 if (square.isMine()) {
jtulach@63:                     square.setState(SquareType.MINE);
jtulach@63:                 }
jtulach@63:             }
jtulach@63:         }
jtulach@63:     }
jtulach@63:     
jtulach@63:     @Function static void click(Mines model, Square data) {
jtulach@63:         if (model.getState() != GameState.IN_PROGRESS) {
jtulach@63:             return;
jtulach@63:         }
jtulach@63:         
jtulach@63:         switch (data.getState()) {
jtulach@63:             case UNKNOWN: 
jtulach@63:                 if (data.isMine()) {
jtulach@63:                     showAllBombs(model);
jtulach@63:                     model.setState(GameState.LOST);
jtulach@63:                 } else {
jtulach@63:                     data.setState(SquareType.N_0);
jtulach@64:                     model.computeMines();
jtulach@63:                 }
jtulach@63:             break;
jtulach@63:         }
jtulach@63:     }
jtulach@63: }