grind086’s gists

grind086 / main.rs

Created September 26, 2023 01:48

Bevy Staged Plugin Example/Template

	use bevy::prelude::*;

	use self::{
	labels::{StageCleanup, StageSet, StageSetup},
	resources::{StageConfigs, StageSetList, SystemConfigsFactory},
	};

	mod labels {
	use bevy::prelude::*;

grind086 / Rust Playground Error

Created March 27, 2023 03:54

	Compiling playground v0.0.1 (/playground)
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x32b8713)[0x7f09bb1a0713]
	/lib/x86_64-linux-gnu/libpthread.so.0(+0x14420)[0x7f09b7d2a420]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed62c7)[0x7f09b9dbe2c7]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed9eca)[0x7f09b9dc1eca]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed9eca)[0x7f09b9dc1eca]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed9eca)[0x7f09b9dc1eca]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed9eca)[0x7f09b9dc1eca]
	/playground/.rustup/toolchains/stable-x86_64-unknown-linux-gnu/lib/librustc_driver-215fbd20babbe9b8.so(+0x1ed9eca)[0x7f09b9dc1eca

grind086 / bresenham-line-algorithm.ts

Last active December 31, 2020 17:27

Typescript implementation of the Bresenham Line-Drawing Algorithm using generators

	/* Iterate integer points on a line where dx >= dy and x0 <= x1. */
	function *iter_line_low(
	[x0, y0]: [number, number],
	[x1, y1]: [number, number]
	): Generator<[number, number], void, unknown> {
	const dx = x1 - x0;
	const dy = y1 - y0;

	let y = y0;
	let e = 0;

grind086 / helper.ts

Created May 4, 2018 23:13

Zero-copy passing rust `Vec`s to JavaScript `TypedArray`s and back.

	/**
	* Takes a pointer to a wasm `TypedArrayData` and returns an appropriate JavaScript `TypedArray`
	* @param ptr A pointer to a `TypedArrayData` struct
	* @param memory The `WebAssembly.Memory` buffer containing the pointer
	* @param useCapacity If true the returned array will have a length determined by the total allocated capacity instead
	* of the number of elements.
	*/
	export function pointerToTypedArray(ptr: number, buffer: ArrayBuffer, useCapacity = false) {
	const [structPtr, structLen, structCap, structKind] = new Uint32Array(buffer, ptr, 4);
	const arraySize = useCapacity ? structCap : structLen;

grind086 / output.txt

Last active April 7, 2018 14:04

Perfect Numbers

grind086 / Singleton.ts

Created January 6, 2018 16:34

Type-safe singleton superclass

	/**
	* A superclass for singleton classes. If constructor arguments are needed a single call to `new ClassName(...args)` is
	* possible, but only before using `ClassName.getInstance()`. Attempting to create additional instances will throw an
	* error.
	*/
	export abstract class Singleton {
	/**
	* Retrieves the singleton instance.
	*/
	public static getInstance<T extends Singleton>(this: { [key: string]: any; new (): T }): T {

grind086 / example.js

Last active January 14, 2019 14:51

Adding data to NaN values

	console.log(examineNaN(NaN));
	// > { isNaN: true, sign: 0, signaling: false, payload: 0 }

	const nan = createNaN(false, false, 5000);
	console.log(isNaN(nan));
	// > true
	console.log(examineNaN(nan));
	// > { isNaN: true, sign: 0, signaling: false, payload: 5000 }

	const nan2 = createNaN(false, false, [1, 2, 3, 4, 5, 6]);

grind086 / index.html

Created April 16, 2017 20:43

Testing ownership transfer on WebWorkers

	<html>
	<head>
	<script type='javascript/worker' id='bufferWorker'>
	self.onmessage = function(e) {
	var data = e.data;
	self.postMessage(data, [ data.buffer ]);
	}
	</script>

	<script type='javascript/worker' id='objectWorker'>

Rob Grindeland grind086