/
Packet83_0E.go
97 lines (80 loc) · 2.1 KB
/
Packet83_0E.go
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package peer
import (
"errors"
"fmt"
"github.com/Gskartwii/roblox-dissector/datamodel"
)
// Packet83_0E represents ID_REPLIC_REGION_REMOVAL
type Packet83_0E struct {
Region StreamInfo
Instances []*datamodel.Instance
}
func (thisStream *extendedReader) DecodePacket83_0E(reader PacketReader, layers *PacketLayers) (Packet83Subpacket, error) {
inner := &Packet83_0E{}
var err error
inner.Region, err = thisStream.readStreamInfo()
numInstances, err := thisStream.readUint32BE()
if err != nil {
return inner, err
}
if numInstances > 0x100000 {
return inner, errors.New("too many instances in region removal")
}
inner.Instances = make([]*datamodel.Instance, numInstances)
useCompression, err := thisStream.readBoolByte()
if err != nil {
return inner, err
}
if useCompression {
thisStream, err = thisStream.RegionToZStdStream()
if err != nil {
return inner, err
}
}
for i := uint32(0); i < numInstances; i++ {
ref, err := thisStream.ReadObject(reader)
if err != nil {
return inner, err
}
inner.Instances[i], err = reader.Context().InstancesByReference.TryGetInstance(ref)
if err != nil {
return inner, err
}
}
return inner, nil
}
// Serialize implements Packet83Subpacket.Serialize()
func (layer *Packet83_0E) Serialize(writer PacketWriter, stream *extendedWriter) error {
err := layer.Region.Serialize(stream)
if err != nil {
return err
}
err = stream.writeUint32BE(uint32(len(layer.Instances)))
if err != nil {
return err
}
err = stream.writeBoolByte(true)
if err != nil {
return err
}
zstdStream := stream.wrapZstd()
for _, inst := range layer.Instances {
err = zstdStream.WriteObject(inst, writer)
if err != nil {
zstdStream.Close()
return err
}
}
return zstdStream.Close()
}
// Type implements Packet83Subpacket.Type()
func (Packet83_0E) Type() uint8 {
return 0x0E
}
// TypeString implements Packet83Subpacket.TypeString()
func (Packet83_0E) TypeString() string {
return "ID_REPLIC_REGION_REMOVAL"
}
func (layer *Packet83_0E) String() string {
return fmt.Sprintf("ID_REPLIC_REGION_REMOVAL: %s, %d instances", layer.Region, len(layer.Instances))
}