Tools.java

/**
 * Copyright (C) 2017 Jan Schäfer (jansch@users.sourceforge.net)
 *
 * 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://www.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 org.jskat.ai.mjl;

import java.util.HashSet;
import java.util.Iterator;
import java.util.Vector;

import org.jskat.util.Card;
import org.jskat.util.CardList;

/**
 * Some tools that are used in the whole application and by the skat players
 */
public class Tools {

	/**
	 * Converts an int array to a String
	 * 
	 * @param values
	 *            int array
	 * @return string
	 */
	public static String dump(int[] values) {
		StringBuffer sb = new StringBuffer("{");
		for (int i = 0; i < values.length; i++) {
			sb.append(values[i]).append(",");
		}
		sb.deleteCharAt(sb.length() - 1);
		return sb.append("}").toString();
	}

	/**
	 * Converts a HashSet array of Cards to a String
	 * 
	 * @param values
	 *            int array
	 * @return string
	 */
	public static String dumpCards(HashSet<Card>[] values) {
		StringBuffer sb = new StringBuffer("{");
		for (int i = 0; i < values.length; i++) {
			Iterator<Card> iter = values[i].iterator();
			sb.append("[");
			while (iter.hasNext()) {
				sb.append(iter.next().toString()).append(",");
			}
			sb.deleteCharAt(sb.length() - 1);
			sb.append("],");
		}
		sb.deleteCharAt(sb.length() - 1);
		return sb.append("}").toString();
	}

	/**
	 * Converts a Vector of CardVectors to a String
	 * 
	 * @param values
	 *            int array
	 * @return string
	 */
	public static String dumpCards(Vector<CardList> values) {

		StringBuffer sb = new StringBuffer("\n{");

		for (int i = 0; i < values.size(); i++) {

			Iterator<Card> iter = values.get(i).iterator();
			sb.append("\n[");

			while (iter.hasNext()) {
				sb.append(iter.next().toString()).append(",");
			}

			sb.deleteCharAt(sb.length() - 1);
			sb.append("]");
		}

		return sb.append("\n}").toString();
	}

	/**
	 * Checks whether a number is in a given set of numbers
	 * 
	 * @param toCheck
	 *            Number that should be checked
	 * @param list
	 *            List of numbers, usually defined by new int[] {a, b, c, ...}
	 * @return TRUE if the number exists in the list
	 */
	public static boolean isIn(int toCheck, int[] list) {
		for (int i = 0; i < list.length; i++) {
			if (toCheck == list[i])
				return true;
		}
		return false;
	}
}