public PlayerSpawnPacket(int id, Vector2f pos)
{
packetType = PACKET_TYPES.PLAYER_SPAWN;
this.id = id;
position = pos;
}
public PlayerShootPacket(int id, Vector2f origin, Vector2f direction)
{
packetType = PACKET_TYPES.PLAYER_SHOOT;
this.id = id;
this.origin = origin;
this.direction = direction;
}
public LobbyInfoPacket(State state, int playerCount, int countdown)
{
packetType = PACKET_TYPES.LOBBY_INFO;
this.state = state;
this.playerCount = playerCount;
this.countdown = countdown;
}
//REQUEST_CHANNEL_LIST:
public byte[] CreatePacket(string password, PACKET_TYPES type)
{
try
{
byte[] hdrBytes = null;
byte[] packet = null;
switch (type)
{
case PACKET_TYPES.REQUEST_CHANNEL_LIST:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)0;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
string seqNumS = ((byte)hdr.SEQUENCE_NUMBER).ToString();
hdr.PasswordHash = EncyptGetHostPassword(password + "," + seqNumS);
hdr.START_OF_PACKET = 0xaa55aa55;
packet = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
GCHandle handle = GCHandle.Alloc(packet, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
case PACKET_TYPES.REQUEST_STATS:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)0;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
string seqNumS = ((byte)hdr.SEQUENCE_NUMBER).ToString();
hdr.PasswordHash = EncyptGetHostPassword(password + "," + seqNumS);
hdr.START_OF_PACKET = 0xaa55aa55;
packet = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
GCHandle handle = GCHandle.Alloc(packet, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
}
return(packet);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
public PlayerUpdatePacket(int id, float hp, Vector2f pos, Vector2f vel, Vector2f dir)
{
packetType = PACKET_TYPES.PLAYER_UPDATE;
this.id = id;
health = hp;
position = pos;
velocity = vel;
direction = dir;
}
public byte[] CreatePacket(PACKET_TYPES type)
{
try
{
byte[] hdrBytes = null;
switch (type)
{
case PACKET_TYPES.REPLY_VALID_ADMIN_PASSWORD:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)0;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdr.START_OF_PACKET = 0xaa55aa55;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
case PACKET_TYPES.REPLY_VALID_VIEWER_PASSWORD:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)0;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdr.START_OF_PACKET = 0xaa55aa55;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
}
return(hdrBytes);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
bool CheckAllPacketTypes(PACKET_TYPES pktTpye)
{
foreach (PACKET_TYPES item in Enum.GetValues(typeof(PACKET_TYPES)))
{
if (item == PACKET_TYPES.INVALID_PACKET)
{
continue;
}
if (pktTpye == item)
{
return(true);
}
}
return(false);
}
public void OnPacket(byte[] data)
{
if (data.Length == 0)
{
return;
}
PACKET_TYPES type = Packet.GetType(data);
if (type == PACKET_TYPES.LOBBY_INFO)
{
LobbyInfoPacket packet = Packet.Deserialize <LobbyInfoPacket>(data);
if (packet.state == LobbyInfoPacket.State.LOBBY_CLOSED)
{
RequestNewState(new Game(_serverConnection));
}
if (packet.state == LobbyInfoPacket.State.STARTING)
{
_statusText.DisplayedString = "Game is starting in " + packet.countdown + " seconds!";
}
if (packet.state == LobbyInfoPacket.State.GAME_IN_PROGRESS)
{
_statusText.DisplayedString = "Game is currently in progress, please wait.";
}
if (packet.state == LobbyInfoPacket.State.WAITING_FOR_PLAYERS)
{
_statusText.DisplayedString = "Waiting for players...";
}
_playerCountText.DisplayedString = "Players in lobby: " + packet.playerCount;
}
}
public EpicVictoryRoyalePacket(int useless_but_required_because_this_is_a_struct_OwO)
{
packetType = PACKET_TYPES.EPIC_VICTORY_ROYALE;
}
public PlayerDisconnectPacket(int id)
{
packetType = PACKET_TYPES.PLAYER_DISCONNECT;
this.id = id;
}
public byte[] CreatePacket(string remoteHostIP, PACKET_TYPES type, string ViewerPassword, string jpegInfo)
{
if (remoteHostIP == null)
{
remoteHostIP = " ";
}
if (ViewerPassword == null)
{
ViewerPassword = "******";
}
try
{
byte[] bytes = null;
switch (type)
{
case PACKET_TYPES.REQUEST_LIVE_VIEW:
{
LIVE_VIEW_COMBINED_PACKET_STRUCT pkt = new LIVE_VIEW_COMBINED_PACKET_STRUCT();
pkt.InfoString = jpegInfo;
pkt.header.PACKET_TYPE = (uint)type;
pkt.header.PACKET_LEN = (uint)(Marshal.SizeOf(typeof(LIVE_VIEW_COMBINED_PACKET_STRUCT)) - Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT)));
pkt.header.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
byte seqNum = (byte)(pkt.header.SEQUENCE_NUMBER & 0xff);
string seqNumS = seqNum.ToString();
pkt.header.PasswordHash = EncyptGetHostPassword(ViewerPassword + "," + seqNumS);
pkt.header.START_OF_PACKET = 0xaa55aa55;
bytes = new byte[Marshal.SizeOf(typeof(LIVE_VIEW_COMBINED_PACKET_STRUCT))];
GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
Marshal.StructureToPtr(pkt, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
case PACKET_TYPES.REQUEST_HOST_NAME:
{
REQUEST_HOST_NAME pkt = new REQUEST_HOST_NAME();
pkt.header.PACKET_TYPE = (int)PACKET_TYPES.REQUEST_HOST_NAME;
pkt.header.PACKET_LEN = (uint)0;
pkt.header.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
byte seqNum = (byte)(pkt.header.SEQUENCE_NUMBER & 0xff);
string seqNumS = seqNum.ToString();
pkt.header.PasswordHash = EncyptGetHostPassword(remoteHostIP + "," + seqNumS);
pkt.header.START_OF_PACKET = 0xaa55aa55;
bytes = new byte[Marshal.SizeOf(typeof(REQUEST_HOST_NAME))];
GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
Marshal.StructureToPtr(pkt, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
}
return(bytes);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
public byte[] CreatePacket(PACKET_TYPES type, string data)
{
try
{
byte[] hdrBytes = null;
byte[] packet = null;
switch (type)
{
case PACKET_TYPES.REQUEST_CHECK_VIEWER_PASSWORD:
case PACKET_TYPES.REQUEST_CHECK_ADMIN_PASSWORD:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)0;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
string seqNumS = ((byte)hdr.SEQUENCE_NUMBER).ToString();
hdr.PasswordHash = EncyptGetHostPassword(data + "," + seqNumS);
hdr.START_OF_PACKET = 0xaa55aa55;
packet = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
GCHandle handle = GCHandle.Alloc(packet, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
}
break;
case PACKET_TYPES.SEND_HOST_NAME:
case PACKET_TYPES.SEND_STATS:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)data.Length;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
hdr.START_OF_PACKET = 0xaa55aa55;
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
if (data == null)
{
data = "0";
}
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] dataBytes = encoding.GetBytes(data);
packet = new byte[hdrBytes.Length + dataBytes.Length];
for (int i = 0; i < hdrBytes.Length; i++)
{
packet[i] = hdrBytes[i];
}
for (int i = hdrBytes.Length; i < hdrBytes.Length + dataBytes.Length; i++)
{
packet[i] = dataBytes[i - hdrBytes.Length];
}
}
break;
case PACKET_TYPES.REPLY_INVALID_ADMIN_PASSWORD_ERROR:
case PACKET_TYPES.REPLY_INVALID_VIEWER_PASSWORD_ERROR:
case PACKET_TYPES.REPLY_INVALID_HOSTNAME_PASSWORD_ERROR:
{
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)data.Length;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
hdr.START_OF_PACKET = 0xaa55aa55;
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
if (data == null)
{
data = "0";
}
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] dataBytes = encoding.GetBytes(data);
packet = new byte[hdrBytes.Length + dataBytes.Length];
for (int i = 0; i < hdrBytes.Length; i++)
{
packet[i] = hdrBytes[i];
}
for (int i = hdrBytes.Length; i < hdrBytes.Length + dataBytes.Length; i++)
{
packet[i] = dataBytes[i - hdrBytes.Length];
}
}
break;
}
return(packet);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
public byte[] CreatePacket(string password, PACKET_TYPES type, string[] data)
{
try
{
byte[] hdrBytes = null;
byte[] packet = null;
switch (type)
{
case PACKET_TYPES.REPLY_CHANNEL_LIST:
{
// count the number of bytes needed for the payload
int count = 0;
foreach (string s in data)
{
count += (s.Length + 1); // add one for the null terminator
}
// header
PACKET_HEADER_STRUCT hdr = new PACKET_HEADER_STRUCT();
hdr.PACKET_TYPE = (uint)type;
hdr.PACKET_LEN = (uint)count;
hdr.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
hdrBytes = new byte[Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))];
string seqNumS = ((byte)hdr.SEQUENCE_NUMBER).ToString();
hdr.PasswordHash = EncyptGetHostPassword(password + "," + seqNumS);
hdr.START_OF_PACKET = 0xaa55aa55;
hdrBytes = new byte[hdrBytes.Length];
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(hdr, handle.AddrOfPinnedObject(), true);
handle.Free();
packet = new byte[hdrBytes.Length + count];
// now build the packet
int i = 0;
int cnt = 0;
for (i = 0; i < hdrBytes.Length; i++)
{
packet[i] = hdrBytes[i];
}
foreach (string s in data)
{
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] dataBytes = encoding.GetBytes(s);
int end = s.Length + i;
cnt = 0;
for ( ; i < end; i++)
{
packet[i] = dataBytes[cnt];
cnt++;
}
packet[i++] = 0; // null terminator for each string
}
}
break;
}
return(packet);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
public byte[] CreatePacket(PACKET_TYPES type, byte[] data, string jpegInfo)
{
try
{
byte[] hdrBytes = null;
byte[] packet = null;
switch (type)
{
case PACKET_TYPES.SEND_LIVE_VIEW:
{
LIVE_VIEW_COMBINED_PACKET_STRUCT pkt = new LIVE_VIEW_COMBINED_PACKET_STRUCT(); // live view packet includes the common header
pkt.InfoString = jpegInfo;
pkt.header.PACKET_TYPE = (uint)type;
pkt.header.START_OF_PACKET = 0xaa55aa55;
pkt.header.PACKET_LEN = (uint)(Marshal.SizeOf(typeof(LIVE_VIEW_COMBINED_PACKET_STRUCT)) - Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT))); // just the live view specific header bytes
pkt.JPEG_LENGTH = (uint)data.Length; // the rest of the payload after the live view specific header bytes
// pkt.header.PACKET_LEN = (uint)(data.Length + Marshal.SizeOf(typeof(LIVE_VIEW_PACKET)) - Marshal.SizeOf(typeof(PACKET_HEADER_STRUCT)));
pkt.header.SEQUENCE_NUMBER = (uint)m_OutBoundSequenceNumber++;
byte seqNum = (byte)(pkt.header.SEQUENCE_NUMBER & 0xff);
string seqNumS = seqNum.ToString();
pkt.header.PasswordHash = " "; // no outbound pw
// copy the combined headers to the bytes array
hdrBytes = new byte[Marshal.SizeOf(typeof(LIVE_VIEW_COMBINED_PACKET_STRUCT))];
GCHandle handle = GCHandle.Alloc(hdrBytes, GCHandleType.Pinned);
Marshal.StructureToPtr(pkt, handle.AddrOfPinnedObject(), true);
handle.Free();
packet = new byte[hdrBytes.Length + data.Length];
int i = 0;
for (i = 0; i < hdrBytes.Length; i++)
{
packet[i] = hdrBytes[i];
}
for (i = hdrBytes.Length; i < hdrBytes.Length + data.Length; i++)
{
packet[i] = data[i - hdrBytes.Length];
}
}
break;
}
return(packet);
}
catch (Exception ex)
{
m_Log.Log("CreatePacket: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return(null);
}
}
public PACKET_TYPES GetPacketType(byte[] packet, ref int payLoadLength, ref ERROR_CODES error, out PACKET_HEADER managedHeader)
{
managedHeader = new PACKET_HEADER();
try
{
if (packet.Length < HeaderLessSOPLength)
{
return(PACKET_TYPES.INVALID_PACKET);
}
PACKET_HEADER_LESS_SOP_STRUCT pktHdr = new PACKET_HEADER_LESS_SOP_STRUCT();
int size = Marshal.SizeOf(typeof(PACKET_HEADER_LESS_SOP_STRUCT));
byte[] headerPart = new byte[size];
headerPart = (byte[])Slice(packet, 0, size);
GCHandle handle = GCHandle.Alloc(headerPart, GCHandleType.Pinned);
pktHdr = (PACKET_HEADER_LESS_SOP_STRUCT)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(PACKET_HEADER_LESS_SOP_STRUCT));
handle.Free();
payLoadLength = (int)pktHdr.PACKET_LEN;
PACKET_TYPES pktTpye = (PACKET_TYPES)pktHdr.PACKET_TYPE;
error = ERROR_CODES.NO_ERROR;
if (!CheckAllPacketTypes(pktTpye))
{
error = ERROR_CODES.BAD_PACKET;
return(PACKET_TYPES.INVALID_PACKET);
}
switch ((PACKET_TYPES)pktTpye)
{
case PACKET_TYPES.REQUEST_HOST_NAME:
m_Log.Log("GetPacketType, received REQUEST_HOST_NAME ", ErrorLog.LOG_TYPE.INFORMATIONAL);
if (!DoesGetHostPWMatch(pktHdr.PasswordHash))
{
m_Log.Log("GetPacketType, ERROR_CODES.INVALID_PASSWORD", ErrorLog.LOG_TYPE.INFORMATIONAL);
error = ERROR_CODES.INVALID_PASSWORD;
}
break;
default:
managedHeader.Type = (PACKET_TYPES)pktHdr.PACKET_TYPE;
managedHeader.PasswordHash = pktHdr.PasswordHash;
managedHeader.SequenceNumber = (int)pktHdr.SEQUENCE_NUMBER;
managedHeader.Length = (int)pktHdr.PACKET_LEN;
break;
}
return((PACKET_TYPES)pktHdr.PACKET_TYPE);
}
catch (Exception ex)
{
m_Log.Log("GetPacketTypeex: " + ex.Message, ErrorLog.LOG_TYPE.INFORMATIONAL);
return((PACKET_TYPES)PACKET_TYPES.INVALID_PACKET);
}
}
