com.chess.genesis.data.GameParser.java Source code

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Here is the source code for com.chess.genesis.data.GameParser.java

Source

/* GenesisChess, an Android chess application
 * Copyright 2014, Justin Madru (justin.jdm64@gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.chess.genesis.data;

import android.os.*;
import com.chess.genesis.engine.*;
import com.chess.genesis.util.*;
import org.json.*;

public class GameParser {
    static class GamePosition {
        public String history;
        public String zfen;
    }

    private GameParser() {
    }

    private static GamePosition parsePosition(final String _history, final int gametype) {
        final GamePosition pos = new GamePosition();
        final Board board = (gametype == Enums.GENESIS_CHESS) ? new GenBoard() : new RegBoard();

        if (_history.length() < 3) {
            pos.history = " ";
            pos.zfen = board.printZfen();
            return pos;
        }
        final String[] movehistory = _history.trim().split(" +");
        final ObjectArray<Move> history = new ObjectArray<Move>(board.moveGenerator());

        for (final String element : movehistory) {
            final Move move = board.newMove();
            move.parse(element);

            if (board.validMove(move) != Move.VALID_MOVE)
                break;
            history.push(move);
            board.make(move);
        }
        pos.history = history.toString();
        pos.zfen = board.printZfen();
        return pos;
    }

    public static Bundle parse(final JSONObject data) {
        final Bundle game = new Bundle();

        try {
            game.putInt("gametype", Enums.GameType(data.optString("gametype", "genesis")));
        } catch (final RuntimeException e) {
            game.putInt("gametype", Enums.GENESIS_CHESS);
        }
        try {
            game.putInt("opponent", Enums.OpponentType(data.optString("opponent", "human")));
        } catch (final RuntimeException e) {
            game.putInt("opponent", Enums.HUMAN_OPPONENT);
        }

        game.putString("name", data.optString("name", "untitled"));
        game.putLong("ctime", data.optLong("ctime", System.currentTimeMillis()));
        game.putLong("stime", data.optLong("stime", System.currentTimeMillis()));

        final GamePosition pos = parsePosition(data.optString("history", " "), game.getInt("gametype"));
        game.putString("history", pos.history);
        game.putString("zfen", pos.zfen);

        return game;
    }

    public static JSONObject parse(final Bundle data) throws JSONException {
        final JSONObject game = export(data);

        game.put("zfen", data.getString("zfen"));
        game.put("ctime", Long.parseLong(data.getString("ctime")));
        game.put("stime", Long.parseLong(data.getString("stime")));

        return game;
    }

    public static JSONObject export(final Bundle data) throws JSONException {
        final JSONObject game = new JSONObject();

        // check if game is a local game
        final String name;
        if (data.getString("name") == null) {
            name = data.getString("white") + " Vs. " + data.getString("black");
            game.put("eventtype", Enums.EventType(Integer.parseInt(data.getString("gametype"))));
        } else {
            name = data.getString("name");
            game.put("opponent", Enums.OpponentType(Integer.parseInt(data.getString("opponent"))));
        }

        game.put("name", name);
        game.put("gametype", Enums.GameType(Integer.parseInt(data.getString("gametype"))));
        game.put("history", data.getString("history"));

        return game;
    }
}