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Ross Andrews randrews

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@randrews
randrews / bouncy.rs
Created March 27, 2023 04:57
Bouncing circle in Rust
View bouncy.rs
use std::arch::aarch64::float32x4x4_t;
use std::f32::consts::PI;
use std::thread::sleep;
use std::time::Duration;
use pixels::{Pixels, PixelsBuilder};
use pixels::wgpu::TextureFormat;
use raqote::{DrawOptions, DrawTarget, Path, PathBuilder, SolidSource, Source};
use winit::dpi::LogicalSize;
use winit::event::{Event, WindowEvent};
use winit::event_loop::{ControlFlow, EventLoop};
@randrews
randrews / main.rs
Created March 24, 2023 03:21
View main.rs
use std::f32::consts::PI;
use pixels::{Pixels, PixelsBuilder};
use pixels::wgpu::TextureFormat;
use raqote::{DrawOptions, DrawTarget, Path, PathBuilder, SolidSource, Source};
use winit::dpi::LogicalSize;
use winit::event::{Event, WindowEvent};
use winit::event_loop::{ControlFlow, EventLoop};
use winit::window::WindowBuilder;
fn main() -> ! {
@randrews
randrews / copy-instruction.txt
Created August 11, 2022 05:20
View copy-instruction.txt
Three arguments: dest, src, mode
Mode is a word of three bytes, separated into three one-byte sub-args
The sub-args are:
- High byte: mode arg
- Mid / low bytes are a 16-bit limit arg
- (Some end modes only use the low byte)
Mode arg is three fields:
- how the src is interpreted / incremented
@randrews
randrews / sword.html
Created July 2, 2022 05:41
View sword.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>You Have A Sword!</title>
<script type="text/javascript">
const $ = s => document.querySelector(s)
const $$ = s => document.querySelectorAll(s)
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randrews / adam_puzzle.js
Created October 3, 2021 01:14
Adam's puzzle, the puzzle from Adam, the puzzle made specifically by Adam, that puzzle.
View adam_puzzle.js
const toNum = digits => Number.parseInt(digits.join(''))
const valid = digits => toNum(digits) % digits.length === 0
function solve(digits = []) {
if (digits.length === 9) { return toNum([...digits, 0]) }
for(var i = 1; i <= 9; i++) {
if (digits.indexOf(i) >= 0) { continue }
if (valid([...digits, i])) {
const soln = solve([...digits, i])
if (soln) { return soln }
@randrews
randrews / main.rs
Created August 17, 2021 05:39
View main.rs
use std::fs;
use std::collections::HashMap;
use serde::Deserialize;
use std::convert::TryFrom;
use std::fmt;
#[derive(Deserialize)]
struct Room {
name: String,
description: String,
@randrews
randrews / main.rs
Created August 17, 2021 00:59
View main.rs
use std::io;
struct Stack(Vec<f32>);
fn main() -> io::Result<()> {
let stdin = io::stdin();
let mut stack = Stack::new();
let mut line = String::new();
'quit: loop {
@randrews
randrews / knob.lua
Created May 30, 2021 21:29
View knob.lua
-- Set up an i2c interface. Using a hardware one, on "slow" speed.
-- If it works on slow it should work period.
local iface = i2c.HW0
i2c.setup(iface, 21, 22, i2c.SLOW)
-- Ask the IO expander what's up:
function query()
i2c.start(iface) -- Start a frame
i2c.address(iface, 0x20, i2c.RECEIVER) -- We're reading from 0x20
i2c.read(iface, 1) -- Read one byte
@randrews
randrews / el.el
Last active May 19, 2021 18:41
View el.el
(defun ruby-tag (tagname)
(or (equal tagname "%")
(equal tagname "%=")
(equal tagname "%#")))
(defun property-tag (tagname)
(or (equal tagname "a")
(equal tagname "div")
(equal tagname "img")
(equal tagname "span")))
@randrews
randrews / el.el
Created May 19, 2021 18:28
View el.el
(defun kill-all-buffers ()
(interactive)
(mapcar (lambda (b)
;; Don't blow away scratch, for reasons, and also because doing so screws up
;; default-directory, setting it to the last thing we tab-completed (!?). This
;; causes annoyance when you try to set a path in the minibuffer later, making
;; it try to cd to that directory and then complaining that it's not there.
(if (not (string= (buffer-name b) "*scratch*"))
(kill-buffer b)))
(buffer-list))