Easy buttons for the Unity default inspector

These tiny scripts add the ability to quickly show a button in the inspector for any method.

Installation

OpenUPM

Once you have the OpenUPM cli, run the following command:

openupm install com.madsbangh.easybuttons

Or if you don't have it, add the scoped registry to manifest.json with the desired version:

  "scopedRegistries": [
    {
      "name": "package.openupm.com",
      "url": "https://package.openupm.com",
      "scopes": [
        "com.madsbangh.easybuttons",
        "com.openupm"
      ]
    }
  ],
  "dependencies": {
    "com.madsbangh.easybuttons": "1.4.0"
  }

Git URL

Project supports Unity Package Manager. To install the project as a Git package do the following:

1. In Unity, open Window -> Package Manager.
2. Press the + button, choose "Add package from git URL..."
3. Enter "https://github.com/madsbangh/EasyButtons.git#upm" and press Add.

Unity Package

Alternatively, you can add the code directly to the project:

1. Clone the repo or download the latest release.
2. Add the EasyButtons folder to your Unity project or import the .unitypackage

How To Use

1. Add the Button attribute to a method.

   using EasyButtons; // 1. Import the namespace
   using UnityEngine;
   
   public class ButtonsExample : MonoBehaviour
   {
       // 2. Add the Button attribute to any method.
       [Button]
       public void SayHello()
       {
           Debug.Log("Hello");
       }
   }
   

2. You should now see a button at the top of the component with the same name as the method:

   

   

3. Add the Button attribute to a method with parameters.

   using EasyButtons;
   using UnityEngine;
   
   public class Test : MonoBehaviour
   {
       [Button]
       public void ButtonWithParameters(string message, int number)
       {
           Debug.Log($"Your message #{number}: '{message}'");
       }
   }
   

4. You can now enter parameter values and invoke the method in the inspector:

   

Attribute Options

The Button attribute has different options that allow customizing the button look.

Mode - indicates when the button is enabled. You can choose between the following options:

• AlwaysEnabled - the button is enabled in edit mode and play mode.

• EnabledInPlayMode - the button is only enabled in play mode.

• DisabledInPlayMode - the button is only enabled in edit mode.

Spacing - allows to have some space before or after the button. The following options can be used:

• None - no spacing at all.

• Before - adds space above the button.

• After - adds space below the button.

Expanded - whether to expand the parameters foldout by default. It only works with buttons that have parameters.

Custom Editors

If you want to show buttons in a custom editor, you can use the ButtonsDrawer class defined in EasyButtons.Editor.

Instantiate ButtonsDrawer in OnEnable if possible, then draw the buttons with help of the DrawButtons method, as in the example:

[CustomEditor(typeof(Example))]
public class CustomEditor : ObjectEditor
{   
    private ButtonsDrawer _buttonsDrawer;

    private void OnEnable()
    {
        _buttonsDrawer = new ButtonsDrawer(target);
    }

    public override void OnInspectorGUI()
    {
        DrawDefaultInspector();
        _buttonsDrawer.DrawButtons(targets);
    }
}

You can also draw only specific buttons:

// Draw only the button called "Custom Editor Example"
_buttonsDrawers.Buttons.First(button => button.DisplayName == "Custom Editor Example").Draw(targets);

You can search for a specific button using its DisplayName or Method (MethodInfo object the button is attached to.)

Notes

• Older versions of Unity might not understand the reference to EasyButtons runtime in the EasyButtons editor assembly definition. If you experience issues, you can re-add the reference, or remove the asmdefs completely.