# ⚛️ Unity Atoms

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_Tiny modular pieces utilizing the power of Scriptable Objects_

## Influences

Unity Atoms is derived from and a continuation of Ryan Hipple's [talk](https://www.youtube.com/watch?v=raQ3iHhE_Kk&t=2787s) from Unite 2017. The original source code can be found [here](https://github.com/roboryantron/Unite2017).

[This](https://www.youtube.com/watch?v=6vmRwLYWNRo&t=738s) talk by Richard Fine is a forerunner to Ryan Hipple's talk during Unite 2016.

## Motivation

The general approach to building scripts in Unity often generates a code base that is monolithic. This results in that your code is cumbersome to test, non-modular and hard to debug and understand.

Unity Atoms is an open source library that aims to make your game code:

-   📦 Modular _- avoid scripts and systems directly dependent on each other_
-   ✏️ Editable _- Scriptable Objects makes it possible to make changes to your game at runtime_
-   🐛 Debuggable _- modular code is easier to debug than tightly coupled code_

## Installation

### NPM

_Prerequisite: Since Unity Atoms is using the Unity Package Manager (UPM) you need to use Unity version 2018.3 >=_

Add the following to your `manifest.json` (which is located under your project location in the folder `Packages`):

```
{
    "scopedRegistries": [
        {
            "name": "NPM Registry",
            "url": "https://registry.npmjs.org",
            "scopes": [
                "com.unity-atoms.unity-atoms-core",
                "com.unity-atoms.unity-atoms-base-atoms",
                "com.unity-atoms.unity-atoms-fsm",
                "com.unity-atoms.unity-atoms-mobile",
                "com.unity-atoms.unity-atoms-mono-hooks",
                "com.unity-atoms.unity-atoms-tags",
                "com.unity-atoms.unity-atoms-scene-mgmt",
                "com.unity-atoms.unity-atoms-ui",
		        "com.unity-atoms.unity-atoms-input-system"
            ]
        }
    ],
    "dependencies": {
        ...
        "com.unity-atoms.unity-atoms-core": "4.4.3",
        "com.unity-atoms.unity-atoms-base-atoms": "4.4.3",
        "com.unity-atoms.unity-atoms-fsm": "4.4.3",
        "com.unity-atoms.unity-atoms-mobile": "4.4.3",
        "com.unity-atoms.unity-atoms-mono-hooks": "4.4.3",
        "com.unity-atoms.unity-atoms-tags": "4.4.3",
        "com.unity-atoms.unity-atoms-scene-mgmt": "4.4.3",
        "com.unity-atoms.unity-atoms-ui": "4.4.3",
	    "com.unity-atoms.unity-atoms-input-system": "4.4.3",
        ...
    }
}
```

Note that the core and base atoms packages are mandatory while the others are optional. If you don't want a subpackage, simply remove it from your `dependencies`.
Note that subpackages may have additional dependencies.

### OpenUPM

The package is available on the [openupm registry](https://openupm.com). It's recommended to install it via [openupm-cli](https://github.com/openupm/openupm-cli).

```
# required
openupm add com.unity-atoms.unity-atoms-core
openupm add com.unity-atoms.unity-atoms-base-atoms

# optional
openupm add com.unity-atoms.unity-atoms-fsm
openupm add com.unity-atoms.unity-atoms-mobile
openupm add com.unity-atoms.unity-atoms-mono-hooks
openupm add com.unity-atoms.unity-atoms-tags
openupm add com.unity-atoms.unity-atoms-scene-mgmt
openupm add com.unity-atoms.unity-atoms-ui
openupm add com.unity-atoms.unity-atoms-input-system
```

## Documentation

The Unity Atoms docs are now published at **https://unity-atoms.github.io/unity-atoms**.

### Blog posts

-   [Unity Atoms — Tiny modular pieces utilizing the power of Scriptable Objects](https://medium.com/@adamramberg/unity-atoms-tiny-modular-pieces-utilizing-the-power-of-scriptable-objects-e8add1b95201)
-   [Announcing Unity Atoms v2](https://medium.com/@adamramberg/announcing-unity-atoms-v2-1719ef3e587e)
-   [Unity Atoms v4 is out!](https://medium.com/@adamramberg/unity-atoms-v4-is-out-b15a37da49da)

## How does it work?

Read [this](https://medium.com/@adamramberg/unity-atoms-tiny-modular-pieces-utilizing-the-power-of-scriptable-objects-e8add1b95201) article on Medium for a great introduction to Unity Atoms.

## Looking for support?

For questions and support please join our [Discord channel](https://discord.gg/W4yd7E7).

## Maintainers

-   [AdamRamberg](https://github.com/AdamRamberg)
-   [soraphis](https://github.com/soraphis)
-   [miikalo](https://github.com/miikalo)
-   [Casey-Hofland](https://github.com/Casey-Hofland)

We are looking for more people to join the team! Contact us if you want to jump aboard.