UOX3.org

function SendGMItemPacket(srcChar, socket, item)
{
    if (!socket || !item)
    {
        return;
    }

    // Define the packet ID for the GM Item Packet
    const PACKET_ID = 0x1A;

    // Create a new packet
    var packet = new Packet();
    packet.ReserveSize(20); // Reserve the necessary size for the packet (minimum 20 bytes)

    // Extract item properties
    let serial = item.serial;
    const itemID = item.id;
    const amount = item.amount || 0;
    const x = item.x & 0x7FFF;
    const y = item.y & 0x3FFF;
    const z = item.z;
    const direction = item.direction || 0;
    const hue = item.hue || 0;
    const flags = item.flags || 0;

    // Adjust serial if the item has an amount
    if (amount > 0)
    {
        serial |= 0x80000000; // Set the high bit for stacked items
    } else
    {
        serial &= 0x7FFFFFFF; // Ensure the high bit is not set for single items
    }

    // Write data to the packet
    packet.WriteByte(0, PACKET_ID);        // Write packet ID at position 0
    packet.WriteLong(1, serial);          // Write item serial at position 1
    packet.WriteShort(5, itemID & 0x3FFF); // Write item ID at position 5

    // Write amount if it's greater than 0
    if (amount > 0)
    {
        packet.WriteShort(7, amount);      // Write amount at position 7
    }

    // Adjust x-coordinate for direction flag
    let adjustedX = x;
    if (direction !== 0)
    {
        adjustedX |= 0x8000; // Set the direction flag
    }
    packet.WriteShort(9, adjustedX);       // Write x-coordinate at position 9

    // Adjust y-coordinate for hue and flags
    let adjustedY = y;
    if (hue !== 0)
    {
        adjustedY |= 0x8000; // Set the hue flag
    }
    if (flags !== 0)
    {
        adjustedY |= 0x4000; // Set the flags flag
    }
    packet.WriteShort(11, adjustedY);      // Write y-coordinate at position 11

    packet.WriteByte(13, z);               // Write z-coordinate at position 13

    // Write direction if it's present
    if (direction !== 0)
    {
        packet.WriteByte(14, direction);   // Write direction at position 14
    }

    // Write hue if it's present
    if (hue !== 0)
    {
        packet.WriteShort(15, hue);        // Write hue at position 15
    }

    // Write flags if they're present
    if (flags !== 0)
    {
        packet.WriteByte(17, flags);       // Write flags at position 17
    }

    // Send the packet to the client
    socket.Send(packet);

    // Free the packet to avoid memory leaks
    packet.Free();
}