ProtocolAction.java

package com.gmail.woodyc40.common.protocol;

import net.tridentsdk.entity.living.Player;

import java.util.Arrays;
import java.util.Collection;

/**
 * Represents a runnable action which can occur on the protocol stream
 *
 * <p>A protocol action that does notion should use {@code ProtocolAction.NO_OP}</p>
 *
 * @author Pierre C
 */
@FunctionalInterface
public interface ProtocolAction {
    /** No players for protocol actions */
    public static final Collection<Player> NO_PLAYERS = Arrays.asList();
    /** Performs nothing */
    public static final ProtocolAction NO_OP = pipe -> null;

    /**
     * Performs the action
     *
     * @param pipe the buffer to inject networking IO if needed
     * @return the players to send the action to
     */
   Collection<Player> handle(ByteAppender pipe);
}