Server/src/engine/net/client/msg/UpdateTradeWindowMsg.java

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//      Magicbane Emulator Project © 2013 - 2022
//                www.magicbane.com


package engine.net.client.msg;


import engine.exception.SerializationException;
import engine.net.AbstractConnection;
import engine.net.ByteBufferReader;
import engine.net.ByteBufferWriter;
import engine.net.client.Protocol;
import engine.objects.Item;
import engine.objects.PlayerCharacter;

import java.util.ArrayList;

/**
 * Update trade window message.  Send item info to other player.
 *
 * @author Eighty
 */
public class UpdateTradeWindowMsg extends ClientNetMsg {

    PlayerCharacter pc1;
    PlayerCharacter pc2;

    /**
     * This is the general purpose constructor.
     */
    public UpdateTradeWindowMsg(PlayerCharacter pc1, PlayerCharacter pc2) {
        super(Protocol.UPDATETRADEWINDOW);
        this.pc1 = pc1;
        this.pc2 = pc2;
    }

    /**
     * This constructor is used by NetMsgFactory. It attempts to deserialize the ByteBuffer into a message. If a BufferUnderflow occurs (based on reading past the limit) then this constructor Throws that Exception to the caller.
     */
    public UpdateTradeWindowMsg(AbstractConnection origin,
                                ByteBufferReader reader) {
        super(Protocol.UPDATETRADEWINDOW, origin, reader);
    }

    /**
     * Serializes the subclass specific items from the supplied NetMsgReader.
     */
    @Override
    protected void _serialize(ByteBufferWriter writer)
            throws SerializationException {

        writer.putInt(pc1.getObjectType().ordinal());
        writer.putInt(pc1.getObjectUUID());

        writer.putInt(pc2.getObjectType().ordinal());
        writer.putInt(pc2.getObjectUUID());


        ArrayList<Item> trading1 = new ArrayList<>();

        for (int itemID : pc1.getCharItemManager().getTrading()) {
            Item item = Item.getFromCache(itemID);
            if (item == null)
                continue;
            trading1.add(item);
        }

        ArrayList<Item> trading2 = new ArrayList<>();
        for (int itemID : pc2.getCharItemManager().getTrading()) {
            Item item = Item.getFromCache(itemID);
            if (item == null)
                continue;
            trading2.add(item);
        }
        Item.putTradingList(pc1, writer, trading1, false, pc1.getObjectUUID(), false, null);
        Item.putTradingList(pc2, writer, trading2, false, pc2.getObjectUUID(), false, null);
    }

    /**
     * Deserializes the subclass specific items to the supplied NetMsgWriter.
     */
    @Override
    protected void _deserialize(ByteBufferReader reader) {
    }

    @Override
    protected int getPowerOfTwoBufferSize() {
        return 16;
    }
}