/// <summary>
/// Write the data in the given instance of AddonPacketData into the given raw packet instance.
/// </summary>
/// <param name="packet">The packet to write into.</param>
/// <param name="addonPacketData">AddonPacketData instance from which to data should be written.</param>
/// <returns>true if any of the data written was reliable; otherwise false.</returns>
private bool WriteAddonPacketData(
Packet packet,
AddonPacketData addonPacketData
) => WritePacketData(
packet,
addonPacketData.PacketData,
addonPacketData.PacketIdEnumerator,
addonPacketData.PacketIdSize
);
/// <summary>
/// Read all raw addon data from the given packet into the given dictionary containing entries for all addons.
/// </summary>
/// <param name="packet">The raw packet instance to read from.</param>
/// <param name="addonDataDict">The dictionary for all addon data to write the read data into.</param>
/// <exception cref="Exception">Thrown if the any part of reading the data throws.</exception>
private void ReadAddonDataDict(
Packet packet,
Dictionary <byte, AddonPacketData> addonDataDict
)
{
// Read the number of the addon packet data instances from the packet
var numAddonData = packet.ReadByte();
while (numAddonData-- > 0)
{
var addonId = packet.ReadByte();
if (!AddonPacketInfoDict.TryGetValue(addonId, out var addonPacketInfo))
{
// If the addon packet info for this addon could not be found, we need to throw an exception
throw new Exception($"Addon with ID {addonId} has no defined addon packet info");
}
// Read the length of the addon packet data for this addon
var addonDataLength = packet.ReadUShort();
// Read exactly as many bytes as was indicated by the previously read value
var addonDataBytes = packet.ReadBytes(addonDataLength);
// Create a new packet object with the given bytes so we can sandbox the reading
var addonPacket = new Packet(addonDataBytes);
// Create a new instance of AddonPacketData to read packet data into and eventually
// add to this packet instance's dictionary
var addonPacketData = new AddonPacketData(addonPacketInfo.PacketIdSize);
try {
ReadAddonPacketData(
addonPacket,
addonPacketInfo.PacketIdSize,
addonPacketInfo.PacketDataInstantiator,
addonPacketData.PacketData
);
} catch (Exception e) {
// If the addon data reading throws an exception, we skip it entirely and since
// we read it into a separate packet, it has no impact on the regular packet
Logger.Get().Debug(this,
$"Addon with ID {addonId} has thrown an exception while reading addon packet data, type: {e.GetType()}, message: {e.Message}");
continue;
}
addonDataDict[addonId] = addonPacketData;
}
}
/// <summary>
/// Sets the given addonPacketData with the given addon ID for sending.
/// </summary>
/// <param name="addonId">The addon ID to set data for.</param>
/// <param name="packetData">Instance of AddonPacketData to set.</param>
public void SetSendingAddonPacketData(byte addonId, AddonPacketData packetData)
{
_addonPacketData[addonId] = packetData;
}
/// <summary>
/// Tries to get addon packet data for the addon with the given ID.
/// </summary>
/// <param name="addonId">The ID of the addon to get the data for.</param>
/// <param name="addonPacketData">An instance of AddonPacketData corresponding to the given ID.
/// Null if this method returns false.</param>
/// <returns>true if the addon packet data exists and will be stored in the addonPacketData variable;
/// otherwise false.</returns>
public bool TryGetSendingAddonPacketData(byte addonId, out AddonPacketData addonPacketData)
{
return(_addonPacketData.TryGetValue(addonId, out addonPacketData));
}