cool-bun-demo/README.md

Cool Bun Demo

Built for The Obligatory Amiga Blitter Video.

Running

Click the mouse to escape any demo.

• main: Main demo
• 32x50, 33x50, left_side, right_side: Rendering Cool Bun in various locations on screen.
• any_position: Cool Bun flies around like a DVD player pause screen.
• keyboard_interrupt: Tests using input.device to access the keyboard.

This will get 50 fps on an 020, and 25 or lower on an 68EC020 and below.

Building

Vamos

You'll want Vamos and SAS/C on Vamos's path:

# main
ruby ./image_converter.rb && touch images.s && vamos -- smake

# any others
vamos -- smake <other>

Performance

The best way I can think of to make this way faster is for a script in Ruby or Python to calculate every blitter register for every frame of data for bun renders and clears, store that in a list of words, and rip through those lists in Assembler, shotgunning the values directly into the registers without the C code needing to track bun positions and bun clears. That's a project for another day.