GBPY compiler + game

Based off https://github.com/ISSOtm/gb-starter-kit with some modifications:

• header.asm - inits GBC palettes and inits double speed mode
• vectors.asm - stat and timer interrupt does things now
• Makefile - new rules between pycompiled/%.asm and data/%_mtiles.bin
• project.mk - personal changes
• src/include/defines.asm - constants/structs from ; Python VM and down

This project roughly shows how a subset of python could be used to write game logic. Rather than operate as a full interpreter, including lexing/parsing/etc, python code is compiled using python's (CPython 3.10.4) compile(...), and then its bytecode and metadata is formatted into data that can be INCLUDE'd in an rgbasm source file.

Controls

• Directions - move orthogonally only. If phase shifting, you can pass through walls / solid blocks
• B - select power. They all default to the 1st: phase shift (walk straight through walls if you can eventually reach a ground tile, eg try phasing through the wall below where you start)
• Select - cycle through powers (if they weren't all phase shift like right now)

Notes

• The python-to-gb-compiler is src/tools/gbcompiler.py
• A virtual file system is created with src/tools/genFileSystem.py
• The conversion script for wav files to my uncompressed NR50 .bin files is src/tools/samplesConvert.py
• To try the sample engine, uncomment jp ExampleSamplesTest in src/intro.asm
• Python VM-related files start with src/pyvm_
• Rainbow VWF code is in src/text_engine.asm
• The 1st room has a button you can stand on to make a block non-solid (thus preventing phase shifting through it). This script is in pyscripts/crypt_5_5.py
• DMG is just not handled

Building

• Requires python 3.10 with pypng installed
• Other than that, gb-starter-kit's README has the compile instructions:

Compiling

Simply open you favorite command prompt / terminal, place yourself in this directory (the one the Makefile is located in), and run the command make. This should create a bunch of things, including the output in the bin folder.

While this project is able to compile under "bare" Windows (i.e. without using MSYS2, Cygwin, etc.), it requires PowerShell, and is sometimes unreliable. You should try running make two or three times if it errors out.

If you get errors that you don't understand, try running make clean. If that gives the same error, try deleting the deps folder. If that still doesn't work, try deleting the bin and obj folders as well. If that still doesn't work, you probably did something wrong yourself.