xxo/Protocol.java at master · d0k/xxo · GitHub

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/* Protocol:
 * OOOOXXYY
 *
 * O: Opcode
 *    0 = client to server to set field
 *    1 = server to client to set "X"
 *    2 = server to client to set "O"
 *    3 = server to client to indicate win
 *    4 = server to client to indicate loss
 *    5 = server to client to indicate tie
 *    6 = server to client to indicate new round
 *    7 = server to client to indicate failure
 * X: X coord
 * Y: Y coord
 */

public class Protocol {
	public static final int SET = 0, SETX = 1, SETO = 2, WIN = 3, LOSS = 4,
	TIE = 5, NEWROUND = 6, FAIL = 7;
	public static final int DEFAULTPORT = 31137;

	public static int opcode(int input) {
		return (input & 0xF0) >> 4;
	}

	public static int x(int input) {
		return (input & 0xC) >> 2;
	}

	public static int y(int input) {
		return input & 3;
	}
}