/*
 * This file is part of the L2J Mobius project.
 * 
 * This program 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.
 * 
 * This program is distributed in the hope that it will be useful,
 * 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 this program. If not, see <http://www.gnu.org/licenses/>.
 */
package org.l2jmobius.gameserver.util;

/**
 * @author UnAfraid
 */
public class MathUtil
{
	public static byte add(byte oldValue, byte value)
	{
		return (byte) (oldValue + value);
	}
	
	public static short add(short oldValue, short value)
	{
		return (short) (oldValue + value);
	}
	
	public static int add(int oldValue, int value)
	{
		return oldValue + value;
	}
	
	public static double add(double oldValue, double value)
	{
		return oldValue + value;
	}
	
	public static byte mul(byte oldValue, byte value)
	{
		return (byte) (oldValue * value);
	}
	
	public static short mul(short oldValue, short value)
	{
		return (short) (oldValue * value);
	}
	
	public static int mul(int oldValue, int value)
	{
		return oldValue * value;
	}
	
	public static double mul(double oldValue, double value)
	{
		return oldValue * value;
	}
	
	public static byte div(byte oldValue, byte value)
	{
		return (byte) (oldValue / value);
	}
	
	public static short div(short oldValue, short value)
	{
		return (short) (oldValue / value);
	}
	
	public static int div(int oldValue, int value)
	{
		return oldValue / value;
	}
	
	public static double div(double oldValue, double value)
	{
		return oldValue / value;
	}
	
	/**
	 * @param numToTest : The number to test.
	 * @param min : The minimum limit.
	 * @param max : The maximum limit.
	 * @return the number or one of the limit (mininum / maximum).
	 */
	public static int limit(int numToTest, int min, int max)
	{
		return (numToTest > max) ? max : ((numToTest < min) ? min : numToTest);
	}
	
	/**
	 * @param objectsSize : The overall elements size.
	 * @param pageSize : The number of elements per page.
	 * @return The number of pages, based on the number of elements and the number of elements we want per page.
	 */
	public static int countPagesNumber(int objectsSize, int pageSize)
	{
		return (objectsSize / pageSize) + ((objectsSize % pageSize) == 0 ? 0 : 1);
	}
}
