• Ensure you have the following requirements:
  • CPython3
  • GNU make
  • A C compiler for the target architecture (e.g: arm-none-eabi-newlib)
• Setup dependencies:

git submodule update --init --recursive
pip install mpremote pyelftools
(cd micropython && make -C mpy-cross && cd ports/rp2 && make submodules && make clean && make)

• Connect your device via USB.
• Then build and run:

make V=1
./uploadrun

• Debugging can be enabled with:

make clean
make V=1 CF=-DDEBUG && ./uploadrun

• See https://docs.micropython.org/en/latest/develop/natmod.html#supported-features-and-limitations for notes on limitations.
• Micropython is loaded via a git submodule at version 1.23.0. You may want to update this.
• The architecture is set to build for an rp2350, and was tested on a Thumby Color Dev Kit. This can be changed in build.zig and Makefile.

• 1 bit per pixel, 8 pixels per byte. • air / ground. • column major order. • a full extra screen sized buffer in every direction for offscreen collision detection such that the full buffer size is 9 times that of the screen size. • the bottom edge byte of each scrolling column is ignored and is used to progressively fill. • 1283128*3 -> 18,434 bytes

• 4 bits per pixel, 2 pixels per byte. • 15 tiles with alpha. • column major order. • a full extra screen sized buffer in every direction for offscreen collision detection such that the full buffer size is 9 times that of the screen size. • 1631634 bits -> 9,216 bytes

• Certain color ranges cause player harm like lava.
• Fluid dynamics run on second core during parts of loop cycle where it can't to anything else - a form of busy wait.
• Needs their own buffer due to wider if dynamics run offscreen.
• Maybe no fluid dynamics...

• Umby
• Glow
• Clip
• A.N.D.R.E.W (Autonomously Navigating Drone-Robot Earth-Worm)

• Grenade
• Robot

• Checkpoint
• Savepoint