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Bitty Engine

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Bitty Engine

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Bitty Engine is an itty bitty game engine, with built-in editors, programmable in Lua.

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Update Notes: v1.6.0

12 Feb

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

Bitty Engine

How make Text bigger in IDE Bitty Engine?

The Text is bit small in IDE and how do you make text bigger?

Amiga Forever

11 Jan @ 3:43am

General Discussions

Screenshot

Award

After 15 enemy waves, about 13 minutes game play.

欣欣Tanuki

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Screenshot

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beGUI

Tony Wang

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Screenshot

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Learning to love Lua - thx Tony

andi

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Screenshot

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Some work in progress

欣欣Tanuki

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Guide

Bitty Engine für Einsteigende

Da es noch keinen Guide zu Bitty Engine gibt, dachte ich mir jemand muss anfangen und habe mal zum Einstieg eine Übersicht gemacht. So kann man sich zunächst einen Überblick verschaffen. Die enthaltenen Beispiele von Tony Wang sind ein weiterer Anlaufpunkt

andi

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Screenshot

Award

Working on my new game!!!

Vivin Ven Don

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Can this make a game engine?

I heard programming can make a good engine. I was wondering if this can make one?

Vivin Ven Don

18 Dec, 2025 @ 2:29am

General Discussions

Update Notes: v1.5.0

19 Jan

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

Bitty Engine

Image Editor Checker Pattern

Hi ;) when I'm using the Image Editor I don't see the transparency checker pattern (like in the screenshots) but the windows background. It's difficult to draw tilemaps without a visual clue of the tile sizes. You can hold the Shift key to enable some grid but thats not ideal and I'm not sure what how to configure that grid either....

Grossmeister B

1 Mar, 2025 @ 2:10pm

General Discussions

Patch Notes: v1.4.2

9 Jan

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