package eq2net

// Login/chat use 1-byte opcodes
const AppOpcodeSize = 1

// The game uses 2-byte opcodes
const GameOpcodeSize = 2

// Protocol-level opcodes for the actual UDP stream
const (
	OP_SessionRequest      = 0x0001
	OP_SessionResponse     = 0x0002
	OP_Combined            = 0x0003
	OP_SessionDisconnect   = 0x0005
	OP_KeepAlive           = 0x0006
	OP_ClientSessionUpdate = 0x0007
	OP_SessionStatRequest  = 0x0008
	OP_SessionStatResponse = 0x0008 // Same opcode, different direction
	OP_Packet              = 0x0009
	OP_Fragment            = 0x000D
	OP_OutOfOrderAck       = 0x0011
	OP_Ack                 = 0x0015
	OP_AckFuture           = 0x0016
	OP_AckPast             = 0x0017
	OP_AppCombined         = 0x0019
	OP_OutOfSession        = 0x001D
)

// Login server opcodes
const (
	OP_LoginInfo           = 0x0100
	OP_Login2              = 0x0200
	OP_GetLoginInfo        = 0x0300
	OP_Disconnect          = 0x0500
	OP_SessionId           = 0x0900
	OP_SendServersFragment = 0x0D00
	OP_RegisterAccount     = 0x2300
	OP_ChangePassword      = 0x4500
	OP_ServerList          = 0x4600
	OP_SessionKey          = 0x4700
	OP_RequestServerStatus = 0x4800
	OP_SendServerStatus    = 0x4A00
	OP_LoginBanner         = 0x5200
	OP_Version             = 0x5900
)

// Common emulator opcodes (internal representation)
const (
	OP_Unknown              = 0x0000
	OP_LoginRequestMsg      = 0x0001
	OP_LoginByNumRequestMsg = 0x0002
	OP_WSLoginRequestMsg    = 0x0003
	OP_ESLoginRequestMsg    = 0x0004
	OP_LoginReplyMsg        = 0x0005
	OP_WSStatusReplyMsg     = 0x0006
)