lua_bindings.cpp:
- Added new lua_renderer_text_scaled() function
- Wraps renderer->draw_string_scaled() with proper scale support
- Registered as renderer.text_scaled(x, y, text, on, scale)
- Scale parameter defaults to 1 if omitted
Updated all 4 games to use text_scaled():
- simon_says.lua: All text now uses text_scaled with scale=2
- tic_tac_toe.lua: All text now uses text_scaled with scale=2
- memory_match.lua: All text now uses text_scaled with scale=2
- 2048.lua: All text now uses text_scaled with scale=2
This properly uses the C++ renderer's scaled text rendering instead of
workarounds in Lua, providing better performance and consistency.
All 4 games (simon_says, tic_tac_toe, memory_match, 2048):
- Changed sizing to use min(width, height) instead of just width
- Grids now scale proportionally on both axes
- All UI text now uses text_scale=2 for better visibility
- Games fill more of the screen properly on portrait mode
Fixes:
- Simon Says buttons now square grid on any orientation
- Tic-Tac-Toe grid centered vertically using full screen height
- Memory Match cards use smallest dimension for square sizing
- 2048 tiles scale and center on both axes
- All text (scores, menus, game over) now 2x larger
snake.lua:
- Changed wall collision to wrap around (toroidal grid)
- Snake now travels through edges instead of crashing
- Doubled move_speed from 10 to 20 frames (half speed)
- Updated speed increase cap from 3 to 5 frames (slower at max)
- Snake can now traverse indefinitely without losing to walls
2048.lua:
- Removed hardcoded TILE_SIZE and TILE_SPACING constants
- Added get_tile_size() function that calculates tile dimensions based on screen width
- Added get_grid_start_x/y() to center grid
- Updated draw() to use dynamic sizing for all tiles
- 4x4 grid now scales proportionally on any screen size
memory_match.lua:
- Removed hardcoded CARD_SIZE and CARD_SPACING
- Added get_card_size() function that calculates card dimensions based on available screen space
- Grid now fills screen width (minus padding) and uses available height
- Added get_grid_start_x/y() to center grid
- All card positions and hit detection updated to use dynamic sizing
- Cards scale proportionally on any screen size while maintaining 4x4 layout
simon_says.lua:
- Removed hardcoded button positions
- Added get_buttons() function that calculates button size and position based on screen dimensions
- Buttons now use 10% screen padding and scale to fill available width
- 2x2 grid automatically scales with screen size
tic_tac_toe.lua:
- Replaced hardcoded CELL_SIZE with dynamic calculation
- Added get_cell_size() to compute size based on screen width
- Added get_grid_start_x/y() to center grid both horizontally and vertically
- Grid now scales to fill available space while maintaining 3x3 layout
- All cell positions updated to use dynamic functions
Both games now work on any screen size and scale proportionally.
All games had the same issue: renderer.circle() requires integer arguments,
but float calculations produced non-integer coordinates.
Fixed in all games using math.floor(x + 0.5) for proper rounding:
- pong.lua: Ball position
- air_hockey.lua: Puck position
- asteroids.lua: Asteroid positions
- ball.lua: Ball and trail positions, velocity line
- breakout.lua: Ball position
- flappy_bird.lua: Bird Y position
- counter.lua: Last touch marker position
- snake.lua: Food position (center calculation)
- tic_tac_toe.lua: O circle center position
Also fixed floating-point coordinate calculations in ball and line
drawing to ensure all coordinates are integers.
- Added INPUT_FRAME_TICK event type to input_event.h
- Added wants_frame_updates() virtual method to Game base class
- Implemented frame tick logic in main loop (basic1.cpp and emulator/main.cpp)
- Added Lua bindings: game.set_frame_updates(bool) and INPUT.FRAME_TICK
- Updated LuaGame to support frame updates via registry flag
- Updated ball.lua to use continuous frame updates for smooth animation
- Both hardware and emulator now support continuous animation for physics/games
- 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.
