Core:

• Added an internal function for script management in new x64 runners.

Launcher:

• No changes.

Plugins:

• No changes.

Earliest backwards-compatible version:

• 2.0.0

Core:

• Fixed Code_Execute and DoCallScript hooks not working / crashing in newer GM versions

Launcher:

• No changes.

Plugins:

• No changes.

Earliest backwards-compatible version:

• 2.0.0

Core:

• Added function for printing text without a newline via PrintMessageNoNewline
• Remade unit test logging, leading to less output
• Added protection against exceptions with the ParseVA function
• Fixed pattern scanning in x64
• Fixed the majority of hooks in x64
• Added support for dynamic plugin loading / unloading via (undocumented) functions
• Fixed game crashes if the installation directory has Unicode characters in it

Launcher:

• Removed Force Latest Commit, as nightly.link is broken and I don't wanna deal with it
• Added DLL caching as per colinator27's request

Plugins:

• ExamplePlugin:
  • Added a warning about how ExamplePlugin is not enabling Debug Mode anymore

Earliest backwards-compatible version:

• 2.0.0

Core:

• Fixed crashes while hooking fullscreen D3D11 games (hopefully?).
• Created an unhandled exception filter to aid with debugging crashes.
• Changed the FindPattern API function to use uintptr_t.

Launcher:

• No changes.

Plugins:

• No changes.

Earliest backwards-compatible version:

• 2.0.0

No, not talking about Flowey.

Core:

• Enabled x64 compilation.
  • The majority of features don't work, and you'll have to compile yourself.
  • Only tested on a 2022.2 runner, anything older / newer might not work. Make issues!
• Reworded the "Plugin X is incompatible" message - thank @Jacky720 for this.
• Removed draw_text_* hooks from the Core.
  • Plugins that need to recreate this behavior should hook the game functions directly - get pointers via GetFunctionByName.
• Added support for disabling automatic freeing of memory allocated for YYRValue strings (by @TheEternalShine).
• Allowed plugins to print colored text using the PrintMessage function.
• Added support for calling the API directly from plugins - if you're getting linker errors, be sure to RMB > Include in Project!
• Added support for multiple callbacks per plugin, each called only on selected events.
• Added support for exporting functions (library plugins) - this is done via PmGetExported and PmSetExported routines.
• Refactored the Plugin Manager.

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • Removed the DR Chapter 2 Debug Enabler, see the new dedicated plugin.
  • Added an actual example plugin, which showcases API functions without being game-specific.
• Hard Mode:
  • Updated to work with the new Plugin API.
• Debug Enabler
  • Ported the old ExamplePlugin to the new API.

Earliest backwards-compatible version:

• 2.0.0 (as per semver specification)

Core:

• Fixed crashes with DirectX 11.

Launcher:

• Fixed launcher not waiting for the window to be created.
• Fixed being able to resize the launcher with Alt + RMB (thanks Miepee!).

Plugins:

• No changes.

Earliest backwards-compatible version:

• 1.2.0

Core:

• Improved error verbosity.
• Function returns are now displayed properly in the console (aside from arrays).
• Added unit tests for the global instance being nullptr - this is not severe, and the tool can continue fine without it.

Launcher:

• Removed dead code, improved readability.
• Changed the layout a bit, hopefully makes it easier to use.
• Added support for injecting into an already running game.
• Added support for using the latest YYTK commit (default is the latest release).
• Modified the default download directory to be the game dir, another is %userprofile%.
• Added support for automatic clean-up of downloaded DLLs.
• Eliminated potential detection vector of detecting YYTK by the DLL name - togglable in the launcher.
• Added new icon, thanks Miepee!
• Fixed the launcher not having an icon on the taskbar.

Plugins:

• No changes.

Earliest backwards-compatible version:

• 1.2.0

Core:

• Added new logging APIs, documentation coming (soon:tm:)

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • Updated logging system.
• Hard Mode:
  • Updated logging system.

Earliest backwards-compatible version:

• 1.2.0

You don't have to update plugins, this version is fully backwards-compatible! If you're new to YYToolkit, the download files can be found here!

Core:

• Localization updates
• Removed duplicate error logging

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • No changes.
• Hard Mode:
  • No changes.

Earliest backwards-compatible version:

• 1.2.0

The versioning for YYToolkit has changed!

Core:

• Added a PopToastNotification API function. It allows you to use native WinAPI to create and send a toast notification.
• Added a PopFileOpenDialog API function. It allows you to use native WinAPI to create a "Open File" dialog, and get it's result.
• Added a plugin version checker - it warns you if you try to load a plugin created for an older version.
  • The version checker also gracefully handles plugins that don't have this support, maintaining backwards compatibility.
• Removed the debug crash keybind I accidentally left in

Launcher:

• No changes.

Plugins:

• Added a hidden __PluginGetSDKVersion, which is called when the plugin is mapped. DO NOT MODIFY THIS FUNCTION!
• Reordered internal elements (this is the thing that breaks backwards compatibility)
• ExamplePlugin:
  • No changes.
• Hard Mode:
  • No changes.

Earliest backwards-compatible version:

• 1.2.0 (this one)

Core:

• Added Early Launch support
• Fixed header include loops
• Removed built-in debug mode
• Accidentally added a debug keybind to crash YYTK (Down Arrow + Page Down)

Launcher:

• Restyled it a bit
• Added Early Launch support

Plugins:

• Added an optional PluginPreload routine, which is used with Early Launch.
• ExamplePlugin:
  • No changes.
• Hard Mode:
  • No changes.

Earliest backwards-compatible version:

• 0.1-rc1

Core:

• Disabled console quick edit - selection inside the console caused the tool to lock up
• Removed several unneeded instances
  • This very slightly speeds up load times
• Fixed self-check result not being printed if the tests failed
• Added callable virtual methods to YYObjectBase
• Fixed RValue arrays not inheriting from CInstanceBase
• Replaced MurMurHash implementation
• Added lookups to YYObjectBase hashmaps, dunno if they work though
• Added callable internal methods which allow you to define instance properties
• Fixed YYObjectBase objects being misaligned

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • No changes.
• Hard Mode:
  • Removed all savepoints beside one at the Queen's Mansion
  • Updated the plugin to use new API calls
  • Buffed HP of monsters on the SnowGrave route even more
  • Added support for DR 1.10
  • Fixed crashes with savepoints triggered by cutscenes

Earliest backwards-compatible version:

• 0.1-rc1

Core:

• Fixed GR_Draw_Text functions hooks failing on DR 1.10 (#32)
• Updated logging, errors are now more verbose
• Added self-tests, which alert you if any internal YYTK module fails. Please report these!

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • Fixed Debug Mode crashing the game on cutscenes, which means you can play through the game without worrying about errors
  • Re-added anti-dogcheck using a new script spoofing technique
  • Re-added Chapter 1 Debug Mode
  • Added anti-dogcheck functionality to Chapter 1 (where it previously wasn't)

Earliest backwards-compatible version:

• 0.1-rc1

Full changelog:

Core:

• Completely remade the API. It's now more error-proof and tries to run even if errors are encountered.
• Temporarily removed some hook calls for plugins, they will be restored in the next release.
• The newest runner version breaks script support, will be fixed in the next release.

Launcher:

• No changes.

Plugins:

• ExamplePlugin:
  • Fixed debug mode not working for the newest DR version (!)
  • Removed anti-dogcheck, as script support is borked.
  • Removed chapter 1 debug, as script support is borked.

I promise this is the final one before the full release!

Full changelog:

Core:

• Changed internal structures to partially support backwards compatibility (only from this release onwards!)
• Changed the project structure to be cleaner, same with the build folders
• Strings are now treated with safer functions inside YYRValues
• Added compatibility fixes from v0.0.7rc-2 to the ResizeBuffers hook
• Simplified hooking code
• Added support for directly referring to GML keywords like self and other
• Fixed what was broken with boolean treating inside YYRValues
• Updated the console to support direct global variable assignment (eg. global.debug = 1) - thanks Space Core!
  • You can also peek at globals by just typing in their name (eg. global.debug would output 1 if debug is enabled).

Launcher:

• No changes.

Plugins:

• Added a WIP Chapter 2 Hard Mode plugin
  • Removes the HP gain from saving
  • Makes savepoints less frequent
  • Buffs enemy attacks and HP
  • Makes Snowgrave a lot harder
• ExamplePlugin:
  • Changed the F3 go-to-room dialog to use the current value of global.currentroom.

Full changelog:

Core:

• Added more printable colors
• Fixed the Core crashing when calling debug-built plugins
• Fixed booleans being stored wrongly in RValues
• Fixed a silent crash in older YYC games
• Expanded the console (F10), now shows return values of functions in the log
• Added a function for printing colorful text without a trailing newline
• Fixed fullscreen resizing issues (hopefully closes #23)
• Completely reworked the code responsible for managing the render target
• Added yet more members to gAPIVars, to allow easier management of the swapchain from plugins
• Debug builds are now identified with the first log line printing in green

Launcher:

• Removed the "Download source code" option
• Added buttons for quick access to UndertaleModTool and YYToolkit releases
• Rephrased warning about develpoment-focused features
• Added a few unused functions LOL (FIX ME)
• Addressed a few antivirus detections
  • Windows Defender now doesn't complain when you download it, and neither should your browser.

Plugin:

• Fixed a typo in the F3 teleport text
• Fixed debug not being turned off after unloading the plugin

Full changelog:

Core:

• Fixed gAPIVars.RenderView being uninitialized before a ResizeBuffers call.
• Added gAPIVars fields for the device context for easier access with plugins.
• Added a console (bound on F10) to execute simple GML function calls with correct syntax.
• Fixed an infinite loop in the API, causing YYToolkit to silently hang if a function wasn't found. Fixes #14.
• Added a unified OnTextRender callback, this isn't a hook, and doesn't behave as such!

Launcher:

• Updated version number (more updates coming in part 2)

Plugin:

• Added a better algorithm to spoofing scripts' return values, now doesn't crash in DR 1.07.
• Fixed crashes when unloading YYToolkit.
• Updated SDK to 0.0.7-rc1

Full changelog:

Core:

• Added a GetScriptByID function to the Core SDK

Launcher:

• Hopefully fixed the "Access to path is denied" error
• Added more verbose error logging

Plugin:

• Updated SDK to 0.0.6c
• Add support for Chapter 1's debug mode (only for the Chapter 1 & 2 demo)

Full changelog:

Core:

• Refactored Plugins.hpp, speeds up compilation time
• Added more D3D11 hook methods for better support with non-NVIDIA GPUs
• Added WM_CLOSE handling to the WndProc hook, making the game close faster. This behavior is unmodifiable by plugins.

Launcher:

• The launcher now remembers the last folder you chose, making it less tedious to select a data.win file from a nearby folder.

Plugin:

• Updated SDK to 0.0.6b (plugins should be backwards-compatible with 0.0.6)

Full changelog:

Core:

• New plugin detection using PE file parsing, prevents misuse of plugins to load untrusted / non-plugin DLLs (could crash in older versions)
• Added several core API functions: Global_CallBuiltin, GetScriptArray, GetScriptByName and ScriptExists.
  • Added direct script access
  • Add proper types to the CScript struct
• Hopefully fixed the DELTARUNE Chapter 2 window disappearing upon injection (#9)

Launcher:

• Fixed the launcher crashing on Windows 7 (#11)
• Added features for loading custom DLLs (right-click on "Launch game with YYToolkit")

Plugin:

• Disabled DogCheck, so you can load into inaccessible rooms with save file editing
• Added a ported "GoToRoom.csx" script - bound on F3, works the same as the UMT counterpart.

This version adds more launcher features like plugin management and opening the data file in UndertaleModTool.

There's a new launcher in town!

The days of injecting with Process Hacker are gone - you can just download Launcher.exe and that's it! No DLLs, no headaches!

(Though you still have to manually install plugins, that's being worked on.)

This version adds support for DoCallScript hooking together with a new way of finding the function. Also adds an API function for detecting YYC. The ExamplePlugin has been changed to enable debug mode in DR Chapter 2.

Oh and a lot more, but I don't remember what.

Quite a lot changed since 0.0.1, but since that was a prerelease, I won't list any changes. It's pretty much just the event handler (hooks) that came in.

Everything's unfinished (but the plugins work!) - though you can use this to learn plugin workflow.