# OpenKCC

This project is a sample of the Open Kinematic Character Controller.
A Kinematic Character Controller (KCC) provides a
way to control a character avatar as a kinematic object that will interact with
the environment.

OpenKCC is an open source project hosted at
[https://github.com/nicholas-maltbie/OpenKCC](https://github.com/nicholas-maltbie/OpenKCC)

This is an open source project licensed under a [MIT License](LICENSE.txt).
Feel free to use a build of the project for your own work. If you see an error
in the project or have any suggestions, write an issue or make a pull request,
I'll happy include any suggestions or ideas into the project.

You can see a demo of the project running here:
[https://nickmaltbie.com/OpenKCC/](https://nickmaltbie.com/OpenKCC/).
The project hosted on the website is up to date with the most recent
version on the `main` branch of this github repo
and is automatically deployed with each update to the codebase.

## Installation

Make sure to add the required dependencies to your project

* [com.unity.inputsystem](https://docs.unity3d.com/Packages/com.unity.inputsystem@1.3/manual/index.html)
  version 1.0.0 or newer
* [com.unity.textmeshpro](https://docs.unity3d.com/Packages/com.unity.textmeshpro@3.0/manual/index.html)
  version 3.0.0 or newer
* [com.nickmaltbie.screenmanager](https://nickmaltbie.com/ScreenManager/docs/index.html)
  version 3.0.0 or newer
* [com.nickmaltbie.statemachineunity](https://nickmaltbie.com/StateMachineUnity/docs/index.html)
  version 1.1.0 or newer
* [com.nickmaltbie.testutilsunity](https://nickmaltbie.com/TestUtilsUnity/docs/index.html)
  version 0.0.2 or newer

In order to use the samples in the project, make sure to also add the following
projects to your project.

Install the latest version of the project by importing a project via git
at this URL:
`git+https://github.com/nicholas-maltbie/OpenKCC.git#release/latest`

If you want to reference a specific tag of the project such as version `v1.3.0`,
add a `#release/v1.3.0` to the end of the git URL to download the package
from th auto-generated branch for that release. An example of importing `v1.3.0`
would look like this:
`git+https://github.com/nicholas-maltbie/openkcc.git#release/v1.3.0`.

To use the latest release, simply reference:

```text
git+https://github.com/nicholas-maltbie/openkcc.git#release/latest
```

For a full list of all tags, check the [OpenKCC Tags](https://github.com/nicholas-maltbie/OpenKCC/tags)
list on github. I will usually associated a tag with each release of the project.

If you do not include a tag, this means that your project will update whenever
you reimport from main. This may cause some errors or problems due to
experimental or breaking changes in the project.

You can also import the project via a tarball if you download the source
code and extract it on your local machine. Make sure to import
via the package manifest defined at `Packages\com.nickmaltbie.openkcc\package.json`
within the project.

For more details about installing a project via git, see unity's documentation
on [Installing form a Git URL](https://docs.unity3d.com/Manual/upm-ui-giturl.html#:~:text=%20Select%20Add%20package%20from%20git%20URL%20from,repository%20directly%20rather%20than%20from%20a%20package%20registry.).

### Scoped Registry Install

If you wish to install the project via a
[Scoped Registry](https://docs.unity3d.com/Manual/upm-scoped.html)
and npm, you can add a scoped registry to your project from all of the
`com.nickmaltbie` packages like this:

```json
"scopedRegistries": [
  {
    "name": "nickmaltbie",
    "url": "https://registry.npmjs.org",
    "scopes": [
      "com.nickmaltbie"
    ]
  }
]
```

Then, if you want to reference a version of the project, you simply
need to include the dependency with a version string and the unity package
manager will be able to download it from the registry at
`https://registry.npmjs.org`

```json
"dependencies": {
  "com.nickmaltbie.openkcc": "1.3.0"
}
```

### Tests

If you wish to include the testing code for this project, make sure to add
the `com.unity.inputsystem` and `com.nickmaltbie.openkcc` to the testables
of the project manifest.

```json
  "testables": [
    "com.nickmaltbie.openkcc",
    "com.nickmaltbie.testutilsunity",
    "com.unity.inputsystem"
  ]
```

Additionally, some of the testing code uses pro builder's api, so make
sure to import [com.unity.probuilder](https://docs.unity3d.com/Packages/com.unity.probuilder@5.0/manual/index.html)
version 5.0 or newer as well.

In order to run the tests, you will need to import the [Moq](https://github.com/moq/moq)
library. My favorite way to import the `Moq.dll` in Unity is by using
[NuGet for Unity](https://github.com/GlitchEnzo/NuGetForUnity).

## Samples

In order to run the samples from the project, you must import the following
projects:

* [com.nickmaltbie.recolorshaderunity](https://nickmaltbie.com/RecolorShaderUnity/docs/)
  version 1.0.0 or newer.
* [com.unity.probuilder](https://docs.unity3d.com/Packages/com.unity.probuilder@5.0/manual/index.html)
  version 5.0 or newer
* [com.unity.render-pipelines.universal](https://docs.unity3d.com/Packages/com.unity.render-pipelines.universal@11.0/manual/index.html)
  version 10.0 or newer
* [com.unity.ai.navigation](https://docs.unity3d.com/Packages/com.unity.ai.navigation@1.0/manual/index.html)
  version 1.0 or newer (for the navmesh sample).

The samples in the project include:

* ExampleFirstPersonKCC - Example first person character controller with a basic
  test scene.
* SimplifiedDemoKCC - Simplified character controller with basic movement scripts.
* Various Collider Shapes - Example collider shapes besides basic capsule for
  a player.
* Example OpenKCC and Navmesh - Example navmesh agent controlled by
  OpenKCC movement engine.

## Documentation

Documentation on the project and scripting API is found at
[https://nickmaltbie.com/OpenKCC/docs/](https://nickmaltbie.com/OpenKCC/docs/)
for the latest version of the codebase.