Commit Graph

3 Commits

Author SHA1 Message Date
Adolfo Reyna
b16211f148 Fix SD card integration and Lua game loading
- Fix SD card MISO pin (was using display MISO instead of SD MISO)
- Add FatFS mounting after SD card initialization
- Restore SPI baudrate on all SD init failure paths
- Add case-insensitive .lua file extension check
- Filter out hidden 8.3 filename entries
- Add SPI speed management functions for shared SPI bus
- Wrap all FatFS operations with SPI speed switching
- Restore display SPI speed (32 MHz) after SD operations
- Add debug output to Lua game loader

This fixes slow display refresh when SD card is present and enables
reliable Lua game loading from SD card /games directory.
2026-02-07 19:31:38 -05:00
Adolfo Reyna
8d176925f8 Fix garbage characters in hardware game names
Store game names and descriptions in persistent LuaGameFactoryData
structure instead of local stack variables to prevent dangling pointers.
Same fix as emulator version.
2026-02-07 13:09:16 -05:00
Adolfo Reyna
e6e4eca188 Add Lua 5.4 scripting integration for dynamic game loading
- Integrated Lua 5.4 engine (32-bit mode for embedded ARM)
- Created LuaGame wrapper class implementing Game interface
- Added C++ bindings exposing renderer, game state, and input to Lua
- Implemented SD card loader for automatic .lua game discovery
- Updated GameLauncher to support std::function for lambda captures
- Made Game class members public for Lua bindings access
- Added example Lua games: counter, snake, bouncing ball
- Included comprehensive API documentation

Games can now be written as .lua text files on SD card and loaded
without recompilation. Build size: 747KB UF2, Lua VM uses ~50-80KB RAM.
2026-02-07 11:56:03 -05:00