AvatarLib

Contains a bunch of quick-to-use APIs for plugins and applications to add, modify a VRChat avatar. This is created because one or more tools of mine share the same code.

API Documentation

Documentation is available at https://poi-vrc.github.io/AvatarLib

How to install

AvatarLib uses the Unity Package Manager (UPM) for version control. You can install the library by:

1. Start the Package Manager from Window -> Package Manager

2. Press the + icon and Add package from git URL...

3. Enter the URL: https://github.com/poi-vrc/AvatarLib.git?path=Packages/com.chocopoi.vrc.avatarlib

• This URL tracks the latest master branch version
• To change to a specific version, you can append #1.x.x at the end
  • e.g. https://github.com/poi-vrc/AvatarLib.git?path=Packages/com.chocopoi.vrc.avatarlib#1.0.0
• For details, check https://docs.unity3d.com/Manual/upm-git.html

How to update

1. Start the Package Manager from Window -> Package Manager

2. Next to the + icon, change to In Project

3. Find AvatarLib and press the Update to x.x.x button if available.

Why this library?

It is created to simply allow me to re-use some codes in multiple tools. But it is a really good library with handy library functions:

1. Easier VRCExpressionsMenu generation

With plain VRCSDK code, you will need to:

...
VRCExpressionsMenu menu = new VRCExpressionsMenu(); 
menu.controls.Add(new VRCExpressionsMenu.Control()
{
    name = "MyButton",
    type = VRCExpressionsMenu.Control.ControlType.Button,
    parameter = "this_is_a_parameter_1",
    value = 1.0f
});
menu.controls.Add(new VRCExpressionsMenu.Control()
{
    name = "MyToggle",
    type = VRCExpressionsMenu.Control.ControlType.Toggle,
    parameter = "this_is_a_parameter_2",
    value = 1.0f
});
VRCExpressionsMenu subMenuHere = new VRCExpressionsMenu(); 
menu.controls.Add(new VRCExpressionsMenu.Control()
{
    name = "MyAnotherSubMenu",
    type = VRCExpressionsMenu.Control.ControlType.SubMenu,
    subMenu = subMenuHere
});
AssetDatabase.CreateAsset(menu, "Assets/Menu1.asset");
AssetDatabase.CreateAsset(subMenuHere, "Assets/Menu2.asset");
...

…which is very long. But you can do this easier with AvatarLib:

// you can create a ExpressionMenuBuilder or directly create a sub-menu the avatar root menu
VRCExpressionsMenu myMenu = new ExpressionMenuBuilder()
    .AddButton("MyButton", "this_is_a_parameter_1", 1.0f)
    .CreateAsset("Assets/Menu1.asset")
    .GetMenu();

// or..
ExpressionMenuUtils.CreateSubMenu(avatar.rootMenu, "MySubMenu")
    .AddButton("MyButton", "this_is_a_parameter_1", 1.0f)
    .AddToggle("MyToggle", "this_is_a_parameter_2", 1.0f)
    .BeginNewSubMenu("MyAnotherSubMenu")
        .AddButton("SubMenuButtonHere", "this_is_a_parameter_3", 1.0f)
        .CreateAsset("Assets/Menu2.asset")
    .EndNewSubMenu()
    .CreateAsset("Assets/Menu1.asset");

2. Clean up your existing expression menus and animator stuff easier using Regex

// removes controls with name starting with "MyMenu "
ExpressionMenuUtils.RemoveExpressionMenuControls(menu, "^MyMenu ");

// removes parameters with name starting with "MyParameter_"
ExpressionMenuUtils.RemoveExpressionParameters(parameters, "^MyParameter_");

// removes layers with name starting with "MyLayer_"
AnimationUtils.RemoveAnimatorLayers(controller, "^MyLayer_");

// removes parameters with name starting with "MyParameter_"
AnimationUtils.RemoveAnimatorParameters(controller, "^MyParameter_");

3. Quick create animator layers with one-line of code

// Creates a AnyState--{condition}-->State layer!
//
//    [Entry] --------------------|
//                                v
//    [AnyState] --{if 0}-> [ myDefaultMotion ]
//         |
//          -------{if 1}-> [ motion1 ]
//         |
//          -------{if 2}-> [ motion2 ]
//         |
//          -------{if 3}-> [ motion3 ]

Dictionary<int, Motion> pairs = new Dictionary<int, Motion>();

pairs.Add(0, myDefaultMotion);
pairs.Add(1, motion1);
pairs.Add(2, motion2);
pairs.Add(3, motion3);

AnimationUtils.GenerateAnyStateLayer(controller, "MyLayer", "MyParameter_Integer", pairs, true);

4. Create World Constraint with code

Transform root = avatar.transform;

WorldConstraint wc = WorldConstraintUtils.CreateWorldConstraint(myGameObjectToBeInWorldSpace, root);

// animation clips generation

AnimationClip lockClip = WorldConstraintUtils.GenerateLockAnimation(wc);
AnimationClip unlockClip = WorldConstraintUtils.GenerateUnlockAnimation(wc);
AnimationClip showClip = WorldConstraintUtils.GenerateShowAnimation(wc);
AnimationClip hideClip = WorldConstraintUtils.GenerateHideAnimation(wc);

Contributing

Please use dotnet-format to format your code before committing. The master branch is the branch holding the latest stable version. Only submit code to develop branch. And it will be merged to master soon if it is time.

To install dotnet-format, you can use: dotnet tool install -g dotnet-format

To format code, do dotnet-format ".\" --folder in the repository root.

License

This project is licensed under the MIT License. tl;dr