/**
* MIT License
* 
* Copyright (c) 2017 Vladimir Mikhaylov
* 
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* 
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
**/
package ru.beykerykt.bullsandcows.base.players.bot.finder;

import java.util.List;
import java.util.Random;

import ru.beykerykt.bullsandcows.base.utils.GameUtils;

public class RandomFinder implements CodeFinder {

	protected List<String> allCodes;
	protected Random rand = new Random();
	protected String lastCode;

	@Override
	public String getGuessCode() {
		lastCode = allCodes.get(rand.nextInt(allCodes.size()));
		return lastCode;
	}

	@Override
	public void reset() {
		this.allCodes.clear();
		this.allCodes = GameUtils.getAllCodes(GameUtils.CODE_POWER_LENGTH);
	}

	@Override
	public void onReceivingResponse(String response) {
		// return "0:0"
		if (allCodes.contains(lastCode)) {
			allCodes.remove(lastCode);
		}
		System.out.println("Size: " + allCodes.size());
	}
}

@@ -1594,16 +1594,48 @@
 set() %7B%0A
+%09%09if (this.allCodes != null) %7B%0A%09
 %09%09this.a
@@ -1651,16 +1651,20 @@
 lear();%0A
+%09%09%7D%0A
 %09%09this.a

fix NullPointerException in RandomFinder