A shoot 'em up game for the Raspberry Pi 3.
Warriors of Kronerd is a Raspberry Pi 3 game written using only low level interactions with the hardware, without using any operating system (replacing it). It's a bare metal programming example of a game.
It was written just for fun, as a learning experience and out of nostalgia.
The game is not yet finished.
What is done:
- Framebuffer init and sprite system.
- Offscreen plane and fast copy to framebuffer.
- Sprite animations.
- Sprite collisions.
- Mersenne Twister pseudorandom number sequence generated.
- Hardware random number access for MT seed initialization.
- Access to 1Ghz system timer.
- Basic bitmap font to blit text and numbers.
- Scene support.
What to code next:
- Controller support (probably original NES hooked to GPIO).
- Sound and music support (on a separate CPY core?).
- DMA offscreen plane copy to framebuffer?
- Use another CPU core to copy to framebuffer?
Check the Makefile.
You will need an ARM compiler installed on your system. Running a make build should generate the kernel7.img file. This file, along with the config.txt should be placed on the first FAT32 partition of your Raspberry Pi 3 booting SD card.
Once powered the game should start immediately.
The following sources where consulted to build the base of the bare metal code.
Baking Pi – Operating Systems Development, course by Alex Chadwick.
https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/index.html
Raspberry Pi, Raspberry Pi 2 & Raspberry Pi 3 Bare Metal Code by krom (Peter Lemon).
https://github.com/PeterLemon/RaspberryPi
Bare Metal Programming in C, by Brian Sidebotham
http://www.valvers.com/open-software/raspberry-pi/step01-bare-metal-programming-in-cpt1/
Circle, A C++ bare metal environment for Raspberry Pi with USB
https://github.com/rsta2/circle
- Lucas Wall wall.lucas@gmail.com
Copyright (c) 2016 Lucas Wall wall.lucas@gmail.com
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