Unity Utility

A lightweight collection of Unity utility classes extension methods, singleton base classes, coroutine helpers, and vector math packaged for the Unity Package Manager.

Everything lives under a single namespace:

using UnityUtils;

Installation

Package Manager (git URL)

1. Open Window → Package Manager.

2. Click + → Add package from git URL…

3. Enter:

   https://github.com/kureysalp/Unity-Utility.git
   

manifest.json

Alternatively, add the dependency directly to Packages/manifest.json:

{
  "dependencies": {
    "com.kureysalp.unity-utility": "https://github.com/kureysalp/Unity-Utility.git"
  }
}

Requires Unity 2021.3 or newer.

What's included

Extensions

Fluent extension methods for the types you touch every day:

• GameObject / Transform - GetOrAdd, OrNull, hierarchy paths, recursive layer setting, child enable/disable/destroy, pose get/set, and more.
• Vector3 - component-wise With / Add / ComponentDivide, range checks, random offsets, points in an annulus, grid quantization.
• Rigidbody - redirect velocity while preserving speed, stop instantly (Unity 6 linearVelocity aware).
• Camera - viewport extents with margin for frustum culling.
• String - null/blank checks, slicing, alphanumeric conversion, and rich-text formatting helpers.
• List / IEnumerable - Shuffle, Swap, Filter, Clone, ForEach, and allocation-aware Random selection.
• Numbers / Mathf - Remap, AtLeast / AtMost clamping, odd/even checks, approximate comparison, and Min / Max for extra numeric types.

Singletons

Base classes for MonoBehaviour singletons:

• Singleton<T> - auto-instantiating, scene-scoped singleton.
• PersistentSingleton<T> - survives scene loads via DontDestroyOnLoad, with optional auto-unparenting.

Coroutine helpers

• WaitFor- cached WaitForSeconds / WaitForFixedUpdate / WaitForEndOfFrame instructions to cut per-frame GC allocations in coroutines.

Math

• VectorMath - static helpers for signed angles on a plane, dot-product projection, projecting points onto lines, rotating vectors onto planes, and more.

Optional dependency

If the Unity.Mathematics package is present, extra half-typed overloads in the numeric helpers are enabled automatically through the ENABLED_UNITY_MATHEMATICS define — no configuration required.

License

Released under the MIT License. See LICENSE.