func NewLoginFailPacket(reason uint32) []byte {
buffer := new(packets.Buffer)
buffer.WriteByte(0x01) // Packet type: LoginFail
buffer.WriteUInt32(reason)
return buffer.Bytes()
}
func NewInitPacket() []byte {
buffer := new(packets.Buffer)
buffer.WriteByte(0x00) // Packet type: Init
buffer.Write([]byte{0x9c, 0x77, 0xed, 0x03}) // Session id?
buffer.Write([]byte{0x5a, 0x78, 0x00, 0x00}) // Protocol version : 785a
return buffer.Bytes()
}
func NewLoginOkPacket(sessionID []byte) []byte {
buffer := new(packets.Buffer)
buffer.WriteByte(0x03) // Packet type: LoginOk
buffer.Write(sessionID[:4]) // Session id 1/2
buffer.Write(sessionID[4:8]) // Session id 2/2
buffer.WriteUInt32(0x00)
buffer.WriteUInt32(0x00)
buffer.WriteUInt32(0x000003ea)
buffer.WriteUInt32(0x00)
buffer.WriteUInt32(0x00)
buffer.WriteUInt32(0x02)
return buffer.Bytes()
}
func NewServerListPacket(gameServers []config.GameServerType, remoteAddr string) []byte {
buffer := new(packets.Buffer)
buffer.WriteByte(0x04)
buffer.WriteUInt8(uint8(len(gameServers))) // Servers count
buffer.WriteByte(0x00) // Unused
network, _, _ := net.SplitHostPort(remoteAddr)
// Server Data (Repeat for each server)
for index, gameserver := range gameServers {
var ip net.IP
if network == "127.0.0.1" {
ip = net.ParseIP(gameserver.InternalIP).To4()
} else {
ip = net.ParseIP(gameserver.ExternalIP).To4()
}
buffer.WriteUInt8(uint8(index + 1)) // Server ID (Bartz)
buffer.WriteByte(ip[0]) // Server IP address 1/4
buffer.WriteByte(ip[1]) // Server IP address 2/4
buffer.WriteByte(ip[2]) // Server IP address 3/4
buffer.WriteByte(ip[3]) // Server IP address 4/4
buffer.WriteUInt32(uint32(gameserver.Port)) // Server port number
buffer.WriteByte(0x0f) // Age limit
buffer.WriteByte(0x01) // Is pvp allowed?
buffer.WriteUInt16(0) // How many players are online
buffer.WriteUInt16(gameserver.Options.MaxPlayers) // Maximum allowed players
if gameserver.Options.Testing == true { // Is this a testing server?
buffer.WriteByte(0x00)
} else {
buffer.WriteByte(0x01)
}
buffer.WriteUInt32(0x02) // Display a green clock (what is this for?)
}
return buffer.Bytes()
}