OrionAlpha

OrionAlpha - A Nexon Replica Emulator Project

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Resources

• You can download the game and client here
• To emulate a korean locale in the client, you can download LocaleEmulator here
• You can download the named client IDB here

Requirements/Dependencies

• Java JDK (8 or higher)
• javax.json (or Java EE)
• Netty (4.1.15 or higher)
• HikariCP (2.7 or higher)
• MariaDB Connector/J (2.1 or higher)
• slf4j (1.7 or higher)

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Architecture

The OrionAlpha Emulator is split up into two parts: Login, and Game, and each execute on their own thread. Login is the sole Login server which will have connectivity to each world and can migrate you back and forth. Game is designed to be each world, and takes the JVM argument -DworldID=X to define which world it is. Each Game JVM that controls the world will also control all of its channels (thus, no multi-jvm here).

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Server Configuration

Located within the root of the emulator are a few configuration files:

• Game0, Game1, etc is used to configure each World.
• Login is used to configure the Login.

The configuration is done within JSON; each property is defined as a key (string), and a value (int, boolean, etc). Below will further explain the defintions of most of the properties used.

• port -> The port to be binded for the server's connection acceptor.
• PublicIP -> The public IP address users will connect to.
• PrivateIP -> The private IP address that connects the JVMs together.
• dbGameWorld -> The Schema name of the active database that the emulator connects to.
• dbGameWorldSource -> The IP and Port for your database.
• incEXPRate -> The server's Experience Rate modifier.
• incMoneyRate -> The server's Meso Rate modifier.
• incDropRate -> The server's Drop Rate modifier.

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Client Modifications

Even knowing there's barely anything to edit in such an early version, below are helpful client edits.

Modifying IP

If you intend to use OrionAlpha, you can change the IP in either our client or the clean client.

• Our client's default IP is 127.0.0.1
• Nexon's default IP is 218.153.9.173

Enable Multi-Client

Allow multiple clients to be open/executed simultaneously.

• Change the instruction at address 005872D9 to jmp 0058732D

Enable Window Mode

Forces the client to execute only in Window Mode, and not Full Screen.

• Change the instruction at address 00589F92 to mov dword ptr [esp+0x84], 0x0

Modifying Client Resolution

Allows you to make the dimensions of the game bigger, for example 1024x768.

• Change the instruction at address 0058A05E to push 0x320 where 0x320 is the Width
• Change the instruction at address 0058A04F to push 0x258 where 0x258 is the Height

Activate Chat Repeat Bypass

Allows you to send the same message into the chat more than 3 times without any issue.

• Change the instruction at address 00444261 to jmp 004442A4

Activate Chat Spam Bypass

Allows you to spam messages constantly without having to wait 2 seconds.

• Change the instruction at address 004442C8 to jmp 0044431B

Enable Infinite Text

Allows you to type as many characters as you want into a single message, literally.

• Change the instruction at address 0051E38D to mov dword ptr [esp+0xC4], 0xFF where 0xFF is the maximum

Enable Swear Filter

Allows you to enter curse words without getting a pop-up and restricting your message from sending.

• Change the instruction at address 004441B8 to jmp 004441ED