Goals

• Identify all classes
  • Create new static classes by grouping related members
• Identify all methods
• Identify all fields
• Identify all local variables
• Remove any remaining obfuscation (possibly none left)
• Fix poor decompiler behavior (fernflower)
• Replace magic numbers and bitmasks with named final fields
• Refactor code to improve behavior/readability
• Modernize code/libraries (High DPI support, modern refresh rates, ...)
• Support existing servers via global config flags that adjust packet behaviors
• Organize classes into packages

OpenRS2 annotations are left in the source to build a deob map from, in case some of my changes aren't desirable.
That mapping can be used to generate a new deob with everything renamed for you.

Instructions

Build requirements:

• Java 8+

Runtime requirements:

• SD: Java 8+
• HD on Windows, use Java 15 or lower. There is a JOGL issue on 16+ related to how they grab the WGL context from the window.
• HD on Linux: Java 8+
• HD on macOS: Not possible yet on latest macOS. Might work for earlier OS versions.

git clone https://github.com/Pazaz/RT4-Client.git
cd RT4-Client
./gradlew run

You will be connected to a test server automatically.
This server is provided by 2009scape for their own internal developments.

Deviations

Configurable:

• Packet behaviors to make it compatible with existing servers
• View distance in HD
• Bilinear map filtering in HD/SD
• Tweening enabled by default (existed in client)
• Shift-click behavior on inventory items enabled by default (existed in client)

Unconfigurable:

• JOGL was updated to 2.4.0
• Update/render loop was decoupled to tick indepedently from each other
• Camera panning input rewritten to use render loop timing
• Varp array size was extended to 3500 instead of 2500
• Mouse wheel camera movement (click middle button and move mouse)
• Render FPS is set to your monitor's refresh rate

Libraries Used

• JOGL/Gluegen 2.4.0rc
• Google Gson 2.9.0