Creating a hotkey to get into "Edit Collider" mode

Unity Engine
1

Is there a way to create a hotkey to get into “Edit Collider” mode of a polygon collider 2d?

2

You should look at UnityEditorInternal.EditMode. There are EditMode.ChangeEditMode & EditMode.QuitEditMode.

3

Thanks, that just might to be the solution. I don’t quite know how to make it work though, I see no info on this on the Unity documentation. Do you know more about this?

private static void EditCollider()
        {
            var sel = Selection.activeGameObject;
            var col = sel.GetComponent<PolygonCollider2D>();
            if (!col) return;

            UnityEditorInternal.EditMode.ChangeEditMode(EditMode.SceneViewEditMode.Collider, , UnityEditor.Editor.CreateEditor(sel));
            Debug.Log("EditMode: " + UnityEditorInternal.EditMode.editMode);
        }
4

I think you can hook into the Event system to capture current events and keycodes but another way is to make a MenuItem and assign a hotkey chord to it, then Unity will automatically pick it up.

[MenuItem ("Edit/Custom/Edit Collider Mode #_e")] // This is Shift + e
private static void EditCollider()
        {
            var sel = Selection.activeGameObject;
            var col = sel.GetComponent<PolygonCollider2D>();
            if (!col) return;

            UnityEditorInternal.EditMode.ChangeEditMode(EditMode.SceneViewEditMode.Collider, , UnityEditor.Editor.CreateEditor(sel));
            Debug.Log("EditMode: " + UnityEditorInternal.EditMode.editMode);
        }
5

Yea that’s pretty cool but the issue here really is the code I shared. It doesn’t work because I’m not sure what to fill this line of code with: UnityEditorInternal.EditMode.ChangeEditMode

6

This code works, enjoy!

[MenuItem("Edit/Custom/Edit Collider Mode #_e")] // This is Shift + e
private static void EditCollider()
{
    var sel = Selection.activeGameObject;
    var col = sel.GetComponent<Collider2D>();

    if (!col)
        return;

    if (UnityEditorInternal.EditMode.editMode == EditMode.SceneViewEditMode.Collider)
    {
        UnityEditorInternal.EditMode.ChangeEditMode(UnityEditorInternal.EditMode.SceneViewEditMode.None, new Bounds(), null);
    }
    else
    {
        Type colliderEditorBase = System.Type.GetType("UnityEditor.ColliderEditorBase,UnityEditor.dll");
        Editor[] colliderEditors = Resources.FindObjectsOfTypeAll(colliderEditorBase) as Editor[];

        if (colliderEditors == null || colliderEditors.Length <= 0)
            return;

        UnityEditorInternal.EditMode.ChangeEditMode(UnityEditorInternal.EditMode.SceneViewEditMode.Collider, col.bounds, colliderEditors[0]);
    }
   
    Debug.Log("EditMode: " + UnityEditorInternal.EditMode.editMode);
}
2 Likes
7

Great! Thank you!

8

Great script, but the hotkey is not working in MacOS. However using “%e” works for CMD+E. Also you should also check if sel is null, so it won’t error, if there is no object selected.

9

I’m using Unity 2019.3.0f6 and when I step through this script in the debugger it is changing the value of “UnityEditorInternal.EditMode.editMode” but not opening edit mode. Can anyone get this working in a new version of unity?

Also just double checking, is the expected behavior of the script above the same as clicking on the button in the attached screenshot?

5482260--561366--PolygonCollider2DEditMode.png
5482260--561366--PolygonCollider2DEditMode.png1886×710 85.8 KB

10

Try this:

[MenuItem("Tools/Edit Polygon Collider")]
    static void edit_polygon_collider() {
        var assemblies = AppDomain.CurrentDomain.GetAssemblies();
        foreach (var assembly in assemblies) {
            if (assembly.GetType("UnityEditor.PolygonCollider2DTool") != null) {
                UnityEditor.EditorTools.EditorTools.SetActiveTool(assembly.GetType("UnityEditor.PolygonCollider2DTool"));
            }
        }
    }

In settings, bind this hot function to any shortcut you want.

1 Like
11

in u2022 SetActiveTool is now using ToolManager instead of EditorTools :

    using UnityEditor.EditorTools;
    (...)
    ToolManager.SetActiveTool(type);

Any idea on how to do the same to edit Spline of SpriteShapeController ?
I searched in the assemblies for various types (like PolygonCollider2DTool) that would be compatible but couldn’t find the right one to feed to the ToolManager.

Thanks :slight_smile:

1 Like
12

You can get the type of the active tool via:

Debug.LogError("Active tool type: " + UnityEditor.EditorTools.ToolManager.activeToolType);

Put that in an editor function with a shortcut, select your object, enable the tool, then log the name of it.

That’s how I was able to find the tool names for sphere and box colliders: “UnityEditor.BoxPrimitiveColliderTool” and “UnityEditor.SphereColliderTool”

[MenuItem("DoomTurtle/Tools/Edit Collider Mode #_e")] // This is Shift + e
static void EditCollider()
{
    var EditorTypes = typeof(EditorTool).Assembly.GetTypes();

    var SelObj = Selection.activeGameObject;
    if (SelObj)
    {
        var BoxToolType = EditorTypes.FirstOrDefault(x => x.FullName == "UnityEditor.BoxPrimitiveColliderTool");
        var SphereToolType = EditorTypes.FirstOrDefault(x => x.FullName == "UnityEditor.SphereColliderTool");

        if (SelObj.GetComponent<BoxCollider>())
        {
            UnityEditor.EditorTools.ToolManager.SetActiveTool(BoxToolType);
        }
        else if (SelObj.GetComponent<SphereCollider>())
        {
            UnityEditor.EditorTools.ToolManager.SetActiveTool(SphereToolType);
        }
    }

    //Debug.LogError("Active tool type: " + UnityEditor.EditorTools.ToolManager.activeToolType);
}
1 Like