Bitty Engine

Released: Mar 17, 2021
Platforms
Last updated: 17 Sep 2026, 00:20 GMT

Updates & announcements

20 posts

19 Jul 2026Developer post
Update Notes: v1.10.0
Update notes v1.9.1 → v1.10.0: This update introduces a new `Ffi` module that enables direct calls to C functions from external .dll/.so/.dylib dynamic libraries within Lua, making it easier to integrate third-party SDKs. It also includes numerous bug fixes and usability enhancem
Update notes v1.9.1 → v1.10.0:
This update introduces a new `Ffi` module that enables direct calls to C functions from external
.dll/.so/.dylib dynamic libraries within Lua, making it easier to integrate third-party SDKs. It also includes numerous bug fixes and usability enhancements. The beGUI lib has also been updated to v1.10.0 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added a simple Ffi module to call C functions in external shared libraries from Lua directly
Improved console panel resizing for bigger edit viewport
Fixed a reading bug in bytes:readLine() when the last line were not ended with a newline
Fixed a reading bug in file:readLine() when the last line were not ended with a newline
Fixed a calculation bug in vec2:cross(num)
Fixed a calculation bug in vec3:cross(...)
Fixed a few potential stability issues of the utilities modules
Fixed a scaling bug for map rendering
Fixed a text encoding issue in the "read-log" API of the automation server plugin on Windows
Original post
08 Jun 2026Developer post
Patch Notes: v1.9.1
Patch notes v1.9.0 → v1.9.1: This update includes Quality-of-Life improvements, including a new repeat pattern filling feature for image assets, as well as better editor zoom and shortcuts. The beGUI lib has also been updated to v1.9.1 to support the latest Bitty Engine: Added an
Patch notes v1.9.0 → v1.9.1:
This update includes Quality-of-Life improvements, including a new repeat pattern filling feature for image assets, as well as better editor zoom and shortcuts. The beGUI lib has also been updated to v1.9.1 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added an option for fine zooming with graphical asset editors
Added an operation to fill a tiles asset with selected patterns
Added shortcut keys for adding and removing sprite frames
Added tilewise selection on image assets when holding Ctrl
Original post
15 May 2026Developer post
Update Notes: v1.9.0
Update notes v1.8.0 → v1.9.0: This release introduces a new automation server plugin, so that Bitty Engine can be integrated into your AI workflows or other external toolchains. This version also contains a number of other improvements. The beGUI lib has also been updated to v1.9
Update notes v1.8.0 → v1.9.0:
This release introduces a new automation server plugin, so that Bitty Engine can be integrated into your AI workflows or other external toolchains. This version also contains a number of other improvements. The beGUI lib has also been updated to v1.9.0 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added an "Automation Server" plugin
Added two menu items to expand or collapse all assets directories
Added a logging to file mechanism
Added a file:flush() method
Fixed a responding issue of the Web backend
Fixed a potential memory leak of Promise in plugins
Original post
07 Apr 2026Developer post
Update Notes: v1.8.0
Update notes v1.7.1 → v1.8.0: This release introduces new file buttons, adds native Apple Silicon support for MacOS, and contains a number of other improvements. The beGUI lib has also been updated to v1.8.0 to support the latest Bitty Engine: Added native Apple Silicon support A
Update notes v1.7.1 → v1.8.0:
This release introduces new file buttons, adds native Apple Silicon support for MacOS, and contains a number of other improvements. The beGUI lib has also been updated to v1.8.0 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added native Apple Silicon support
Added namespace Bitty to the source code of the engine
Added new, open, and save buttons to the banner area
Improved Path.documentDirectory fallback on Windows
Improved Path.savedGamesDirectory fallback on Windows
Fixed memory leak of Path.savedGamesDirectory on Windows
Fixed a game canvas reset issue when switching fullscreen mode
Fixed a crash bug when running an empty project
Original post
24 Mar 2026Developer post
Patch Notes: v1.7.1
Patch notes v1.7.0 → v1.7.1: This update is an enhancement release. It includes improvements to the TextBox and DocumentViewer modules, adds a new Engine module, introduces the Sprite.animationSpeed property to control a sprite's animation speed, along with other improvements and
Patch notes v1.7.0 → v1.7.1:
This update is an enhancement release. It includes improvements to the TextBox and DocumentViewer modules, adds a new Engine module, introduces the Sprite.animationSpeed property to control a sprite's animation speed, along with other improvements and bug fixes. Additionally, beGUI has been significantly improved and updated to v1.7.1.

Added support for loading font config via asset path for the TextBox module
Added support for loading font config via asset path for the DocumentViewer module
Added an Engine module which holds a number of engine related values, such as identifier, version numbers, runtime, etc.
Added a Sprite.animationSpeed property to control a sprite's animation speed
Improved global searching in code assets
Improved the context menu on the assets panel
Optimized to prevent tab flickering when opening asset tabs
Fixed a flickering issue when resizing a TextBox widget
Fixed a flickering issue when resizing a DocumentViewer widget
Original post
10 Mar 2026Developer post
Update Notes: v1.7.0
Update notes v1.6.1 → v1.7.0: This release introduces a new DocumentViewer module to show markdown pages, as well as asset-level support for markdown documents, it also includes new menu items in the asset panel to copy code snippets for loading those assets, and fixes a number o
Update notes v1.6.1 → v1.7.0:
This release introduces a new DocumentViewer module to show markdown pages, as well as asset-level support for markdown documents, it also includes new menu items in the asset panel to copy code snippets for loading those assets, and fixes a number of bugs. The beGUI lib has also been updated to v1.7.0 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added a DocumentViewer module
Added code highlight for markdown (.md) files
Added support for markdown (.md) content to the TextBox module.
Added support to create markdown (.md) assets
Added context menu items to the assets panel to copy code snippets
Improved project strategy parsing for canvas settings
Updated the application title refresh mechanism to restore its text content after execution ends
Updated the launch options for application scaling
Fixed a HEX color conversion out-of-bounds bug
Original post
22 Feb 2026Developer post
Patch Notes: v1.6.1
Patch notes v1.6.0 → v1.6.1: This is a patch update that includes several bug fixes and usability improvements to v1.6. Added support for building project from command line Added links of reusable libs Improved indent handling in the text-based editors Updated screen size for ini
Patch notes v1.6.0 → v1.6.1:
This is a patch update that includes several bug fixes and usability improvements to v1.6.

Added support for building project from command line
Added links of reusable libs
Improved indent handling in the text-based editors
Updated screen size for initial window scaling
Fixed an IME window positioning issue on Windows 10/11
Fixed a window refreshing issue under dark mode
Original post
12 Feb 2026Developer post
Update Notes: v1.6.0
Update notes v1.5.0 → v1.6.0: This release improves the usability of the TextBox , Database , and Music classes, adds new APIs and options, enhances ease of use, and fixes a number of bugs. The beGUI lib has also been updated to v1.6.0 to support the latest Bitty Engine: Added a
Update notes v1.5.0 → v1.6.0:
This release improves the usability of the TextBox, Database, and Music classes, adds new APIs and options, enhances ease of use, and fixes a number of bugs. The beGUI lib has also been updated to v1.6.0 to support the latest Bitty Engine: https://github.com/paladin-t/begui

Added a __len() operator to Music resource
Added length, isPlaying, isPaused, position, finished properties to Music resource
Added play(...), pause(), resume(), stop(...) methods to Music resource
Added a "force_monospace" option to the TextBox module
Added a lastInsertedRowId field to the Database module
Added lineCount, undoable, redoable, hasUnsavedChanges properties to the TextBox module
Added location(), locate(...), selection(), selectRange(...), lineAt(...), columnsAt(...), indent(), unindent(), undo(), redo(), markChangesSaved(), ensureCursorVisible(...) methods to the TextBox module
Added a txt parameter to the paste(...) method of the TextBox module
Added an Application.setCursor(name) function to set cursor with string
Added an Application.skipFrame() function to skip one frame for flushing the application window
Improved custom font range support
Improved non-ASCII code rendering
Improved handling of character input across multiple threads
Improved scroll behaviour of TextBox when mouse is moving at edges
Updated to allow activating assets for editing by double click on the editor tabs
Updated the "TextBox" example to use selected fonts
Updated the text-based editors to use sticky line numbers
Fixed a crash bug when use Promise without an update function
Fixed a thread locking bug of nested Promises
Fixed a style assigning bug of code editors when they are opened by text lookup
Fixed some potential issues during renaming assets
Fixed an asset validation bug after removing its reference asset
Fixed base of the "cursor_line" and "cursor_column" options to 1 for the TextBox module
Fixed a camera handling bug with the TextBox module
Fixed an async operation issue with the TextBox module
Fixed a memory leak within the TextBox module
Original post
19 Jan 2026Developer post
Update Notes: v1.5.0
Update notes v1.4.2 → v1.5.0: Enhanced modules, improved usability, fixed some bugs. Added API of SQLite-based database Added API for using the new TextBox editor module in game Added examples of the new Database and TextBox modules Added a Path.writableDirectoryOf( ) function to
Update notes v1.4.2 → v1.5.0:
Enhanced modules, improved usability, fixed some bugs.

Added API of SQLite-based database
Added API for using the new TextBox editor module in game
Added examples of the new Database and TextBox modules
Added a Path.writableDirectoryOf([org, app]) function to get the writable sub directory path with the specific identifiers
Added a pair of bytes:toList() and bytes:fromList(lst) methods to convert between Bytes and Lua list
Added color:toGray(), color:toARGB(), color:fromARGB(int), color:toHSV(), color:fromHSV(h, s, v, a = 255), color:toString(), color:fromString(val) methods
Added json:toBytes(pretty = true), json:fromBytes(bytes) methods
Added a preference option to specify whether to show recent opened files
Added support for drag-and-drop to open projects
Added an option to use system SDL2 library on Linux
Changed to get the versions of some libs dynamically to reflect runtime environment
Improved Japanese and Cyrillic character rendering in code editor
Improved RMB handling in the assets list
Improved error report
Improved ranged pair inputting for the code editor
Updated the msgbox function to support yes-no and yes-no-cancel dialogs
Fixed a colorization issue in the output window
Fixed a window title refreshing issue after modifying "info.json"
Fixed a colorization issue in the output window
Fixed an IME window positioning issue
Original post
09 Jan 2026Developer post
Patch Notes: v1.4.2
Patch notes v1.4.1 → v1.4.2: Enhanced modules, improved usability, fixed some bugs. Added a "transparent_color" application option to specify transparent color for the application window on Windows 10 and above (experimental) Added support for moving editing area by MMB Added sup
Patch notes v1.4.1 → v1.4.2:
Enhanced modules, improved usability, fixed some bugs.

Added a "transparent_color" application option to specify transparent color for the application window on Windows 10 and above (experimental)
Added support for moving editing area by MMB
Added support for zoom with Ctrl+Mouse Wheel
Added title and path of the current project to the title bar
Added active asset selection in the list view when switching to an asset tab
Improved wordwise selection
Improved notification handling on Linux
Improved tab color of the classic theme
Improved stability when failed to get the path of writable directory
Fixed a style assigning bug of code editors when they are opened by the debugger
Fixed a system notification issue on Windows 11
Fixed a potential locale issue for cURL threading
Fixed an absolute path resolving bug on Windows
Upgraded SDL from v2.0.12 to v2.32.10
Upgraded Lua from v5.4.8 to v5.5.0
Original post
04 Dec 2025Developer post
Patch Notes: v1.4.1 (rev3)
Patch notes v1.4.1 (rev3): Made some usability improvements Fixed some known bugs
Patch notes v1.4.1 (rev3):

Made some usability improvements
Fixed some known bugs
Original post
27 Aug 2025Developer post
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03 Aug 2025Developer post
Patch Notes: v1.4.1
Patch notes v1.4.0 → v1.4.1: Enhanced modules, improved usability, fixed some bugs. Improved wordwise forward/backward navigation of the code editor Improved code editor behaviour when input quotes Improved code editor behaviour when delete wordwise or whole line Fixed an unexpec
Patch notes v1.4.0 → v1.4.1:
Enhanced modules, improved usability, fixed some bugs.

Improved wordwise forward/backward navigation of the code editor
Improved code editor behaviour when input quotes
Improved code editor behaviour when delete wordwise or whole line
Fixed an unexpected termination bug when a custom splash image is indicated
Upgraded Lua from v5.4.7 to v5.4.8
Original post
01 Mar 2025Developer post
Update Notes: v1.4.0
Update notes v1.3.2 → v1.4.0: Enhanced modules, improved usability, fixed some bugs. Added an `Invoke` module for HTML Added a callback mechanism from JavaScript to Lua for HTML Added menu items to toggle transparent background and grids Improved continuous input of newline with
Update notes v1.3.2 → v1.4.0:
Enhanced modules, improved usability, fixed some bugs.

Added an `Invoke` module for HTML
Added a callback mechanism from JavaScript to Lua for HTML
Added menu items to toggle transparent background and grids
Improved continuous input of newline with indent for the code editor
Improved debug behaviour if the debug panel is hidden
Fixed a glitch after painting on a paletted image
Original post
06 Feb 2025Developer post
Patch Notes: v1.3.2
Patch notes v1.3.1 → v1.3.2: Enhanced modules, improved usability, fixed some bugs. Added a callback API of file drag&drop Changed the default border textures to transparent Fixed a `fetch` locale bug Improved support for Windows' dark mode Improved compatibility with differe
Patch notes v1.3.1 → v1.3.2:
Enhanced modules, improved usability, fixed some bugs.

Added a callback API of file drag&drop
Changed the default border textures to transparent
Fixed a `fetch` locale bug
Improved support for Windows' dark mode
Improved compatibility with different newline flavours including `\r`, `\n` and `\r\n`
Improved code editor behaviour when input quotes
Improved file dialog behaviour on Windows
Upgraded Lua from v5.4.6 to v5.4.7
Original post
14 May 2024Developer post
Patch Notes: v1.3.1
Patch notes v1.3 → v1.3.1: Improved usability, fixed some bugs. Fixed an indent/unindent bug with context menu Fixed a selection positioning issue after comment/uncomment Fixed a shortcut handling bug of closing searching bar with Escape Fixed a potential crash bug when search fo
Patch notes v1.3 → v1.3.1:
Improved usability, fixed some bugs.

Fixed an indent/unindent bug with context menu
Fixed a selection positioning issue after comment/uncomment
Fixed a shortcut handling bug of closing searching bar with Escape
Fixed a potential crash bug when search for the first time
Improved usability with touch screen
Improved asset corruption notification
Original post
17 Jan 2024Developer post
Update Notes: v1.3
Update notes v1.2.2 → v1.3: Enhanced modules, improved usability, fixed some bugs. Added an option to the fetch(...) function to specify whether to allow insecure connection for HTTPS Added global search to the code editor Added a shortcut Ctrl+Q to select the current word Added
Update notes v1.2.2 → v1.3:
Enhanced modules, improved usability, fixed some bugs.

Added an option to the fetch(...) function to specify whether to allow insecure connection for HTTPS
Added global search to the code editor
Added a shortcut Ctrl+Q to select the current word
Added a shortcut Ctrl+/ to toggle comment
Added shortcuts Alt+Up/Alt+Down to move code lines up/down
Added shortcuts Ctrl+PgUp/Ctrl+PgDown to change asset pages
Added shortcuts Ctrl+U/Ctrl+Shift+U to toggle lower case/upper case
Added a preference setting to specify indent rule
Added a preference setting to specify column indicator
Changed default window scale to 2x if display is big enough
Improved rendering of document layout
Optimized text width measurement of the code editor
Updated the text-based editors to set focus properly
Updated the code editor to allow moving cursor to the first none-space character when press the Home key
Original post
16 Sep 2023Developer post
Patch Notes: v1.2.2
Patch notes v1.2.1 → v1.2.2: Enhanced modules, improved usability, fixed some bugs. Added a application position restoration feature after re-launching Added config to specify (or disable) canvas padding for exported package Added a file dialog requirement note for Linux Fixed a
Patch notes v1.2.1 → v1.2.2:
Enhanced modules, improved usability, fixed some bugs.

Added a application position restoration feature after re-launching
Added config to specify (or disable) canvas padding for exported package
Added a file dialog requirement note for Linux
Fixed a potential crash bug when compiled with some version of GCC
Fixed a potential crash bug with the physics examples on Linux
Fixed a widget focusing issue when start to search or jump in a text-based editor
Fixed an invisible issue of the "Hello Physics" example on Linux and MacOS
Improved button status of the rotating and flipping tools
Improved selection behaviour when double-click on a token
Improved canvas re-positioning behaviour after switching to another project
Updated the `Image` module to support stretching paletted objects
Original post
15 Feb 2023Developer post
Patch Notes: v1.2.1
Patch notes v1.2 → v1.2.1: Enhanced modules, improved usability, fixed some bugs. Added a `DateTime.sleep(...)` function Added a vsync option Added an option to customize the splash image for HTML build Added an option to disable the boot sound Added a "position" option to the `A
Patch notes v1.2 → v1.2.1:
Enhanced modules, improved usability, fixed some bugs.

Added a `DateTime.sleep(...)` function
Added a vsync option
Added an option to customize the splash image for HTML build
Added an option to disable the boot sound
Added a "position" option to the `Application.setOption(...)` function
Added a "display_index" option to the `Application.setOption(...)` function
Fixed a cursor location issue of the `bytes:resize(...)` function
Fixed a canvas scaling issue under edit mode
Original post
31 Aug 2022Developer post
Update Notes: v1.2
Update notes v1.1.8 → v1.2: Enhanced modules, improved usability, fixed some bugs. Added a 2D physics module (beta) Added examples to the "Physics" category Fixed a random seeding issue under multi-threading environment Fixed a crash bug of the `Resources.load(...)` function when
Update notes v1.1.8 → v1.2:
Enhanced modules, improved usability, fixed some bugs.

Added a 2D physics module (beta)
Added examples to the "Physics" category
Fixed a random seeding issue under multi-threading environment
Fixed a crash bug of the `Resources.load(...)` function when argument is invalid
Fixed a newline issue of content text in the document viewer
Original post