ewmb7701’s gists

ewmb7701 / web-dev-server.config.mjs

Created February 15, 2026 20:57

web-dev-server.config.mjs for bevy app website in workspace

	import { resolve } from "node:path";
	import serve from "koa-static";
	import mount from "koa-mount";

	const ROOT_DIR = resolve(import.meta.dirname, "./code");
	const ASSETS_DIR = resolve(import.meta.dirname, "../../assets");
	const APPS_DIR = resolve(
	import.meta.dirname,
	"../../build/wasm32-unknown-unknown/debug",
	);

ewmb7701 / @swooce+core+index.ts

Created February 2, 2026 08:58

	import { glob } from "glob";
	import { mkdir, copyFile } from "node:fs/promises";
	import { dirname } from "node:path";
	import { fileURLToPath, pathToFileURL } from "node:url";
	import { Module, ModuleEmitter, ModuleResolver, type API } from "swooce";

	/**
	* Module without any content.
	*
	* Useful for eg,

ewmb7701 / hyperscript-lite.ts

Created January 31, 2026 10:42

	type HTMLElementAttributes<THTMLElement extends keyof HTMLElementTagNameMap> = {
	[K in keyof HTMLElementTagNameMap[THTMLElement]]?: HTMLElementTagNameMap[THTMLElement][K] extends DOMTokenList
	? string \| HTMLElementTagNameMap[THTMLElement][K]
	: HTMLElementTagNameMap[THTMLElement][K];
	};

	/**
	* Append a single Node or string as a text node to a parent element.
	*/
	function appendChild(parent: HTMLElement, child: Node \| string) {

ewmb7701 / crates\parry3d_lib_extensions\source\code\lib.rs

Created July 8, 2025 15:58

cast_ball_triangle

	// /// Casts a moving ball against a static triangle and returns the first time of impact, if any.
	// ///
	// /// Checks all triangle features (face, edge, vertex) manually.
	// pub fn cast_ball_triangle(
	// pos12: &Isometry<f32>,
	// vel12: &Vector<f32>,
	// g1: &Triangle,
	// g2: &Ball,
	// options: ShapeCastOptions,
	// ) -> Option<(ShapeCastHit, FeatureId)> {

ewmb7701 / input.rs

Created November 25, 2024 22:12

pole-based character controller in Bevy

	use bevy::{
	log::debug,
	math::{Dir3, Vec3},
	};

	fn map_range(from_range: (f32, f32), to_range: (f32, f32), s: f32) -> f32 {
	to_range.0
	+ (s - from_range.0) * (to_range.1 - to_range.0)
	/ (from_range.1 - from_range.0)
	}

ewmb7701 / utils.rs

Created November 23, 2024 22:13

bevy_rapier3d character controller heel surface


	pub fn determine_next_heel_stage_surface(
	rapier_context: &Res<RapierContext>,
	root_position: Vec3,
	root_rotation: Quat,
	cast_origin_forward: f32,
	cast_origin_down: f32,
	cast_distance: f32,
	cast_max_angle: f32,
	) -> Option<StageSurfaceData> {

ewmb7701 / bevy_rapier_3d_character_controller.rs

Created November 23, 2024 20:13

step down character controller

	/// Determine the next "step down" stage surface for a character.
	///
	/// # Parameters
	pub fn get_step_down_floor(
	rapier_context: &RapierContext,
	query_filter: QueryFilter,
	root_source_translation: Vec3,
	root_source_rotation: Quat,
	wall_cast_origin_local_neg_y: f32,
	wall_cast_distance: f32,

ewmb7701 / character_contorller_utils_.rs

Last active November 23, 2024 03:36

Bevy character controller rotate body around root

	/// translate and rotate a point around anhter
	pub fn rotate_point_around_pivot(
	point: Vec3,
	pivot: Vec3,
	rotation: Quat,
	) -> Vec3 {
	// Translate the point to the origin
	let translated_point = point - pivot;

	// Apply the rotation

ewmb7701 / character_controller_3d.rs

Created November 16, 2024 14:55

3D character controller in Bevy with Avian3D

	/// determine next linear velocity for a character.
	/// "with body" means veloicity is applied to the body.
	// TODO move to avian3d_lib
	pub fn determine_next_step_linear_velocity_for_rigidbody_with_body(
	spatial_query: &SpatialQuery,
	query_filter: SpatialQueryFilter,
	start_root_global_translation: Vec3,
	start_root_global_rotation: Quat,
	body_shape: SharedShape,
	body_local_translation: Vec3,

ewmb7701 / index.ts

Created December 21, 2023 16:29

fiddle-typescript-type-maps

	import { ValueOf } from 'type-fest';

	/**
	* a "type map" is a map of type tag/ discriminator to type.
	* https://javascript.plainenglish.io/tagged-union-types-in-typescript-leveraging-type-safety-and-flexibility-be0e60145815
	*
	* type maps are useful for creating event maps or action maps.
	*
	* Actions as in Redux action: https://redux.js.org/tutorials/fundamentals/part-2-concepts-data-flow#actions
	*/

Eric Brown ewmb7701