uchar8.java

网络游戏天堂1的java源代码。。。。。

/*
 * 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 2, 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.server.server.types;

public class UChar8 {
	/**
	 * Converts a 32 bit unsigned/signed long array to a 8 bit unsigned char
	 * array.
	 * 
	 * @param buff
	 *            the array to convert
	 * @return char[] an 8 bit unsigned char array
	 */
	public static char[] fromArray(long[] buff) {
		char[] charBuff = new char[buff.length * 4];

		for (int i = 0; i < buff.length; ++i) {
			charBuff[(i * 4) + 0] = (char) (buff[i] & 0xFF);
			charBuff[(i * 4) + 1] = (char) ((buff[i] >> 8) & 0xFF);
			charBuff[(i * 4) + 2] = (char) ((buff[i] >> 16) & 0xFF);
			charBuff[(i * 4) + 3] = (char) ((buff[i] >> 24) & 0xFF);
		}

		return charBuff;
	}

	/**
	 * Converts an 8 bit unsigned byte array to an 8 bit unsigned char array.
	 * 
	 * @param buff
	 *            the array to convert
	 * @return char[] an 8 bit unsigned char array
	 */
	public static char[] fromArray(byte[] buff) {
		char[] charBuff = new char[buff.length];

		for (int i = 0; i < buff.length; ++i) {
			charBuff[i] = (char) (buff[i] & 0xFF);
		}

		return charBuff;
	}

	/**
	 * Converts an 8 bit unsigned byte array to an 8 bit unsigned char array.
	 * 
	 * @param buff
	 *            the array to convert length the array size
	 * @return char[] an 8 bit unsigned char array
	 */
	public static char[] fromArray(byte[] buff, int length) {
		char[] charBuff = new char[length];

		for (int i = 0; i < length; ++i) {
			charBuff[i] = (char) (buff[i] & 0xFF);
		}

		return charBuff;
	}

	/**
	 * Converts an 8 bit unsigned byte to an 8 bit unsigned char.
	 * 
	 * @param b
	 *            the byte value to convert
	 * @return char an 8 bit unsigned char
	 */
	public static char fromUByte8(byte b) {
		return (char) (b & 0xFF);
	}

	/**
	 * Converts a 32 bit unsigned long to an 8 bit unsigned char.
	 * 
	 * @param l
	 *            the long value to convert
	 * @return char an 8 bit unsigned char
	 */
	public static char[] fromULong32(long l) {
		char[] charBuff = new char[4];

		charBuff[0] = (char) (l & 0xFF);
		charBuff[1] = (char) ((l >> 8) & 0xFF);
		charBuff[2] = (char) ((l >> 16) & 0xFF);
		charBuff[3] = (char) ((l >> 24) & 0xFF);

		return charBuff;
	}
}