# 2023 Lisp Game Jam Entry
## "Game"

Yeah I don't have a good name yet.  I'm just playing around and trying to get characters on the screen right now.

## Dependencies

- chicken scheme (`csi`) with eggs:
  - matchable
  - r7rs
  - srfi-18
  - stty
- my ansi library, [yolk][]

[yolk]: https://git.acdw.net/yolk

## Running

Run `./game.scm` in this directory.

## License

This software is licensed under the Look At This Cool Rock I Found Public License, version 1.0.  See [COPYING][] for details.

Here is a picture of the cool rock I found:

![cool rock](https://junk.acdw.net/coolrock.jpg)

[COPYING]: https://git.acdw.net/game/tree/COPYING

## Development log

### 2023-05-30

- Changed license to LATCRIFPL
- Added beginning of snake and came up with basic idea for game

I'm going to have to add threads >_<  Curse you non-turn-based games!

The snake is interesting ... it's its own structure with a head thing and a list of tail things trailing behind.  Each time it moves it just cuts off its tail at the length it needs to be, giving the illusion of movement.  I had some complicated stuff with each segment storing its own age ... but that was a bad idea lol.

### 2023-05-29

- I've changed the basic logic from just throwing characters on the screen wherever to a vector-based approach.  I thought there was a multiple-dimensional vector egg or something, but I apparently was mistaken.  So I'm doing the ol' multiply-by-one-thing-and-add-another approach.
- Implementing collision detection was slightly easier than I thought it might
  be.
- Figuring out the vector bounds math was tricky... lots of "off-by-one" errors.  I suppose I've hit both of the main errors of computer science with this game, then.
- I encapsulated things in their own records (so far, `world`, `thing`, and `me` ... and `world` and `me` are parameterized) to keep stuff together.  I think this'll work... I hope!

### .. before

I started out by writing [yolk][], which has a bunch of procedures returning strings for terminal escapes.  NIH and all :)

Originally I had a big loop to just draw all the border stuff at once, then the character where I wanted it.  The character would erase itself and redraw as it moved, which worked fine ... for one object.

I was walking around when I realized I'd need to redo things.