YYToolkit

YYToolkit is a tool for creating mods and altering GameMaker games.

Currently, only Windows is supported.

Features

Intercepting script calls and object events
- Executing your own code before or after the event
- Cancelling the event
Calling any GML function, from any instance
Plugin support
- The tool provides various functions to aid with modifying game code.
  - Intercept and change any built-in function call
  - Intercept any script call
  - Intercept any object event (Draw, Step), change their bytecode, cancel them...
  - Intercept any game errors to create your own error dialogs
  - Run code every game frame (TAS frame counter?)
  - Run code even before the game is started!
  - and more!
Full compatibility with existing tools like UndertaleModTool or Dogscepter.

MakeConfig - a directory for make files - currently unused, I don't even know how it works tbh.
Plugins - Contains source code of all the plugins
- ExamplePlugin - Source code for the Example plugin
- Chapter2_EnableDebug - Source code for the Chapter 2 Debug plugin
- Chapter2_HardMode - Source code for the Hard Mode plugin
YYLauncher - Source code for the launcher
YYToolkit - Source code for the DLL