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Arduboy2 library ported to WASM4
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joshgoebel/Arduboy2-WASM4
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This is a port of the Arduboy2 library to WASM-4.
At a very high level:
- rips out all the legit hardware stuff (ports, I/O interfaces, sleep, etc)
- maps
Arduboy2::displayto the center of the WASM-4 screen - maps the WASM-4 controller #1 to
Arduboy2Core::buttonsState() - bundles (for now)
ArduboyTonesand maps it'stone([one note])function tow4.tonechannel 1 - adds some scaffolding for
<Arduino.h>and friends to make porting most things easier - 1024 buffer is still needs for the screen since all the native functions are still drawing to that buffer, only in
displayis that translated to the native WASM-4 display
- You can't use tight loops waiting for input, since WASM-4 is event driven and
updateis called at 60 FPS - You're stuck with 60 FPS (or an even multiple, 30, 15, etc.)
To play it online:
https://ajoshguy.itch.io/mystic-balloons-w4
- A working C/C++ toolchain on your local machine for compiling
- Working Make tooks, since you'll need
maketo build - The WASM-4
w4console utility for running or bundling your cartridges
- Restore sound in
Arduboy2Beep.cpp - more cleanups of the built-in functions
- random does nothing
- randomSeed does nothing
- does not support
Printorprintyet - Move palette setup and such things into the library
- Is there some way to hide
EEPROM.boot()?
Pretty much all the work was in the main sketch file:
Before:
voidsetup(){ arduboy.boot(); arduboy.audio.begin(); arduboy.bootLogoSpritesSelfMasked(); arduboy.setFrameRate(60);loadSetEEPROM();}voidloop() {if (!(arduboy.nextFrame()))return;if (gameState < STATE_GAME_NEXT_LEVEL && arduboy.everyXFrames(10))sparkleFrames = (++sparkleFrames) %5; arduboy.pollButtons(); arduboy.clear(); ((FunctionPointer)pgm_read_word (&mainGameLoop[gameState]))(); arduboy.display();}
After:
Make sure you notice the functions have been renamed tostart andupdate.
voidstart(){ arduboy.boot();// we MUST set aside 1024 of RAM to allow us to easily// persist the entire EEPROM to disk correctly EEPROM.boot();// does nothing currently, we're really always 60 FPS// but perhaps we can make it work with 15 or 30 in the future arduboy.setFrameRate(60); arduboy.audio.begin();loadSetEEPROM();}voidupdate() {if (stillBooting()) {return; }// set our "black and white" pallette PALETTE[0] =0x000000; PALETTE[1] =0xffff99;if (!(arduboy.nextFrame()))return;if (gameState < STATE_GAME_NEXT_LEVEL && arduboy.everyXFrames(10))sparkleFrames = (++sparkleFrames) %5; arduboy.pollButtons(); arduboy.clear();// this can be simplified since we have no PROGMEM on WASM-4 mainGameLoop[gameState](); arduboy.display();}
Update is only called when the next frame is needed so essentiallynextFrame() is almost a NOP, but it still does useful things with regard to frame counting, etc. so it's best to leave it.