de.winniehell.battlebeavers.storage.StepDeserializer.java Source code

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Here is the source code for de.winniehell.battlebeavers.storage.StepDeserializer.java

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/*
   (c) winniehell (2012)
    
   This file is part of the game Battle Beavers.
    
   Battle Beavers is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
    
   Battle Beavers is distributed in the hope that it will be fun,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
    
   You should have received a copy of the GNU General Public License
   along with Battle Beavers. If not, see <http://www.gnu.org/licenses/>.
*/

package de.winniehell.battlebeavers.storage;

import java.lang.reflect.Type;

import org.anddev.andengine.util.path.Path;
import org.anddev.andengine.util.path.Path.Step;

import com.google.gson.JsonArray;
import com.google.gson.JsonDeserializationContext;
import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonParseException;

/**
 * deserializer class for {@link Step}
 * @author <a href="https://github.com/winniehell/">winniehell</a>
 */
class StepDeserializer implements JsonDeserializer<Step> {
    @Override
    public Step deserialize(final JsonElement pJson, final Type pType, final JsonDeserializationContext pContext)
            throws JsonParseException {
        if (!pJson.isJsonArray()) {
            return null;
        }

        final JsonArray array = pJson.getAsJsonArray();

        if (array.size() != 2) {
            return null;
        }

        return dummyPath.new Step(array.get(0).getAsInt(), array.get(1).getAsInt());
    }

    /** necessary to create new instances of Step */
    static private Path dummyPath = new Path();
}