Use methods of Transform without linked gameObject

[BigRoy]

So i’m looking for the functions similar to those on the Transform class on an object that I can easily set and get in my own scripts. I think the API of the Transform class is really clear and easy to understand as opposed to the Mat4x4 which seems more linked to the mathematical terms.

I would rather not wrap up the Mat4x4 class that acts similar to the Transform class, like so:

namespace Math {

    public struct MatTransform {

        public Matrix4x4 mat;

        Vector2 right { get { return this.mat * Vector3.right; } }
        Vector2 left { get { return this.mat * Vector3.left; } }
        Vector2 up { get { return this.mat * Vector3.up; } }
        Vector2 down { get { return this.mat * Vector3.down; } }

        Vector2 TransformPoint(Vector2 vec)
        {
            return (Vector2)mat.MultiplyPoint3x4((Vector3)vec);
        }
        Vector2 TransformDirection(Vector2 vec)
        {
            return (Vector2)mat.MultiplyVector((Vector3)vec);
        }
    }
}

And the rest of its methods.

In short, I don’t want to instantiate a gameObject and access its transform. But I want to store a local transformation space within my script and access/change it with the functions as are on the Transform class.

[MakeCodeNow]

Sad to day that you only have two options, both of which you already know.

1. Make an empty gameObject which is the local transform.

2. Create a helper class like the above.

Make sure you’re not prematurely optimizing though. If you want to have a sub object with a local transform that uses the transform API, maybe use use a Transform! Unless you have profiled or have some calculations that suggest having a real game object will be a problem, then why optimize something that may never be a problem?