// Copyright (C) 2007 EQ2EMulator Development Team - GPL v3 License

#pragma once

// Network protocol operation codes for EQ2Emulator session management
// These constants define the packet types used in the custom UDP protocol

// Session establishment and management opcodes
static const char OP_SessionRequest = 0x01;				// Initial connection request from client
static const char OP_SessionResponse = 0x02;			// Server response to session request
static const char OP_SessionDisconnect = 0x05;			// Clean session termination
static const char OP_SessionStatResponse = 0x08;		// Session statistics response
static const char OP_OutOfSession = 0x1d;				// Packet received outside valid session

// Data transmission opcodes
static const char OP_Combined = 0x03;					// Multiple packets combined into single transmission
static const char OP_Packet = 0x09;						// Standard data packet
static const char OP_Fragment = 0x0d;					// Large packet fragmented for transmission
static const char OP_AppCombined = 0x19;				// Application-level combined packets

// Connection maintenance opcodes
static const char OP_KeepAlive = 0x06;					// Heartbeat to maintain connection
static const char OP_ServerKeyRequest = 0x07;			// Request for server encryption key

// Acknowledgment and ordering opcodes
static const char OP_Ack = 0x15;						// Standard packet acknowledgment
static const char OP_OutOfOrderAck = 0x11;				// Acknowledgment for out-of-sequence packet

// Application opcode size configuration
// LOGIN and CHAT servers use 1-byte opcodes, game servers use 2-byte opcodes
#if defined(LOGIN) || defined(CHAT)
	#define APP_OPCODE_SIZE	1
#else
	#define APP_OPCODE_SIZE	2
#endif