keenanwoodall’s gists

keenanwoodall / NativeCurve

Last active October 1, 2024 22:05

A struct that makes using animation curves with the job system easy.

	using System;
	using System.Runtime.CompilerServices;
	using UnityEngine;
	using Unity.Collections;
	using static Unity.Mathematics.math;

	public struct NativeCurve : IDisposable
	{
	public bool IsCreated => values.IsCreated;

keenanwoodall / CurveTest

Created December 29, 2018 21:13

Example script showing how to deform a mesh using a NativeCurve.

	using UnityEngine;
	using Unity.Jobs;
	using Unity.Burst;
	using Unity.Collections;

	public class CurveTest : MonoBehaviour
	{
	public AnimationCurve curve;

	private Mesh mesh;

keenanwoodall / Transform Rotation GUI

Last active March 5, 2019 10:20

A helper class for drawing a transform's rotation field in the same way as the Transform editor in Unity.

	using System;
	using System.Reflection;
	using UnityEngine;
	using UnityEditor;

	/// <summary>
	/// Abstracts the reflection required to use the internal TransformRotationGUI class.
	/// </summary>
	public class TransformRotationGUI
	{

keenanwoodall / CustomFloatField.cs

Last active March 13, 2019 23:59

A helper class that lets you draw a float field with more control. You can define a rect where the value is drawn/set and another rect where you can drag to scroll the value.

	using System;
	using System.Reflection;
	using UnityEngine;
	using UnityEditor;

	public static class CustomFloatField
	{
	private static readonly int Hint = "EditorTextField".GetHashCode ();
	private static readonly Type EditorGUIType = typeof (EditorGUI);
	private static readonly Type RecycledTextEditorType = Assembly.GetAssembly (EditorGUIType).GetType ("UnityEditor.EditorGUI+RecycledTextEditor");

keenanwoodall / Automated Deformation Test

Created August 1, 2019 16:48

A test for deforming meshes without using a deformable component

	using UnityEngine;
	using UnityEditor;
	using Unity.Jobs;
	using Deform;

	public class AutomatedDeformationTestWindow : EditorWindow
	{
	private Mesh mesh;

	[MenuItem("Tools/Automated Deformation Window")]

keenanwoodall / PrefabUtilityMenuItems.cs

Created August 3, 2019 18:21

Makes creating more than one prefab at once possible

	using UnityEngine;
	using UnityEditor;

	public static class PrefabUtilityMenuItems
	{
	[MenuItem("Tools/Prefab Utility/Create Prefabs From Selection")]
	public static void CreateFromSelection()
	{
	var selections = Selection.gameObjects;
	if (selections == null \|\| selections.Length == 0)

keenanwoodall / Editor Scripting - No Scopes vs Scopes.md

Last active March 30, 2023 06:28

I think using scopes greatly improves readability. Here's an example of converting a larger section of code. The indenting makes it immediately clear when a scopes begins and ends. Both snippets of code draw the exact same controls.

Before:

EditorGUILayout.BeginVertical("box");
disable = EditorGUILayout.Toggle("Disable Sliders", disable);
indent = EditorGUILayout.IntSlider("Indent Sliders", indent, 1, 4);

keenanwoodall / UnityObjectOperatorOverloadTest.cs

Last active November 9, 2019 18:10

Test if the equality operator for anything that derives from Unity.Object is still overridden. Just put the script in your project and press play in any scene to test.

	// read this article for more info: https://blogs.unity3d.com/2014/05/16/custom-operator-should-we-keep-it/
	using UnityEngine;

	public class UnityObjectOperatorOverloadTest : MonoBehaviour
	{
	[RuntimeInitializeOnLoadMethod]
	public static void Test()
	{
	var gameObject = new GameObject("UnityEngine.Object Operator Overload Test");

keenanwoodall / BoundedBendDeformer.cs

Created December 10, 2019 17:43

A modified bend deformer that only modifies vertices within a defined bounding box

	using UnityEngine;
	using Unity.Jobs;
	using Unity.Burst;
	using Unity.Collections;
	using Unity.Mathematics;
	using static Unity.Mathematics.math;
	using Beans.Unity.Mathematics;

	namespace Deform
	{

keenanwoodall / Spring.cs

Created May 24, 2021 19:17

C# implementation of Ming-Lun "Allen" Chou's springing functions for Unity (aka my favorite functions)

	// Source: http://allenchou.net/2015/04/game-math-precise-control-over-numeric-springing/
	public void Spring(ref float x, ref float v, float xt, float zeta, float omega, float h)
	{
	float f = 1.0f + 2.0f * h * zeta * omega;
	float oo = omega * omega;
	float hoo = h * oo;
	float hhoo = h * hoo;
	float detInv = 1.0f / (f + hhoo);
	float detX = f * x + h * v + hhoo * xt;
	float detV = v + hoo * (xt - x);

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