appeng.core.sync.packets.PacketPartialItem.java Source code

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Here is the source code for appeng.core.sync.packets.PacketPartialItem.java

Source

/*
 * This file is part of Applied Energistics 2.
 * Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
 *
 * Applied Energistics 2 is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Applied Energistics 2 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Applied Energistics 2.  If not, see <http://www.gnu.org/licenses/lgpl>.
 */

package appeng.core.sync.packets;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;

import net.minecraft.entity.player.EntityPlayer;

import appeng.container.AEBaseContainer;
import appeng.core.sync.AppEngPacket;
import appeng.core.sync.network.INetworkInfo;

public class PacketPartialItem extends AppEngPacket {

    private final short pageNum;
    private final byte[] data;

    // automatic.
    public PacketPartialItem(final ByteBuf stream) {
        this.pageNum = stream.readShort();
        stream.readBytes(this.data = new byte[stream.readableBytes()]);
    }

    // api
    public PacketPartialItem(final int page, final int maxPages, final byte[] buf) {

        final ByteBuf data = Unpooled.buffer();

        this.pageNum = (short) (page | (maxPages << 8));
        this.data = buf;
        data.writeInt(this.getPacketID());
        data.writeShort(this.pageNum);
        data.writeBytes(buf);

        this.configureWrite(data);
    }

    @Override
    public void serverPacketData(final INetworkInfo manager, final AppEngPacket packet, final EntityPlayer player) {
        if (player.openContainer instanceof AEBaseContainer) {
            ((AEBaseContainer) player.openContainer).postPartial(this);
        }
    }

    public int getPageCount() {
        return this.pageNum >> 8;
    }

    public int getSize() {
        return this.data.length;
    }

    public int write(final byte[] buffer, final int cursor) {
        System.arraycopy(this.data, 0, buffer, cursor, this.data.length);
        return cursor + this.data.length;
    }
}