Andrew Raphael Lukasik andrew-raphael-lukasik

note: this was a programming experiment

Initial goal

To create a Quadtree where

all nodes are kept in linear order one index next to the other
nodes and points are stored in separate, dedicated array/list buffers

Lessons learned:

Run thousands of basic² ai agents without and with Unity ECS 1.0.11.

No Unity ECS

FightCube.cs

Unity ECS

FightCubeAuthoring.cs
GameStateStartedAuthoring.cs

most basic sand sim you can create with Raylib 4.0

(Unity) vertex color importer for MeshLab's OBJ files

Update note:

This toy code worked fine in the older Unity version but stopped working correctly in the newer ones. Something about the vertex data order. I suggest using different format - FBX for example.

Rendering system to draw debug shapes with.

Target camera is not restricted to SceneView and unlike Gizmos this will work in !DEBUG builds.

👉write to managed array from a Burst-compiled `IJob`

Highlights:

cast T[] to NativeArray<T>
schedule jobs that read/write to managed arrays
pointer safety assertion that prevent crashes and data corruption

more info in the first comment under the source code

basic sun controller

Test to figure out how to generate useful random numbers in a `Unity.Collections.IJobParallelFor`

seed: 46473452

_(reference)	_{new Random( Seed * (uint)( index + 1 ) ).NextInt()}	_{new Random( Seed + (uint)( index * Results.Length ) ).NextInt()}	_{Random.CreateFromIndex( Seed ^ (uint)index ).NextInt()}	_{new Random( Seed * Random.CreateFromIndex( (uint)index ).NextUInt() ).NextInt()}	_{new Random( Seed * Random.CreateFromIndex( (uint)index ).state ).NextInt()}	_{new Random( new Random( Seed * Random.CreateFromIndex( (uint)index ).NextUInt() ).NextUInt() ).NextInt()}
-37321856	-37321856	-37321856	501644091	673738796	2057345775	-477813603
-1687388613	2073921280	-97452083	-1206518005	327600797	-2026729932	-1871146698
-2118002258	-421164753	-83806521	-530221473	-1985565071	1850284329	-781137724
-462119340	2000358945	-128750088	-2079259769	-20976

Universal turret component

	// src* https://gist.github.com/andrew-raphael-lukasik/530e90ee27cd7a9be47351e03b2634d1
	using System.Collections.Generic;
	using UnityEngine;
	using UnityEngine.Jobs;
	using Unity.Entities;
	using Unity.Transforms;
	using Unity.Rendering;
	using Unity.Collections;
	using Unity.Mathematics;