Unity Best Practices - Cached Components

Unity Engine
1

Hi everyone,

As I’m working on mobile, optimization is an important part.
I’m trying to find the best way to automatically assigned most of the components properties as followed:

public abtract class MonoBehaviourBase : MonoBehaviour
{
private Animation _animation = null;
public new Animation animation
{
get { return _animation; }
}

private AudioSource _audio = null;
public new AudioSource audio
{
get { return _audio; }
}

private Camera _camera = null;
public new Camera camera
{
get
{ return _camera; }
}

private Collider _collider = null;
public new Collider collider
{
get
{ return _collider; }
}

private Collider2D _collider2D = null;
public new Collider2D collider2D
{
get { return _collider2D; }
}

private Transform _transform = null;
public new Transform transform
{
get { return _transform; }
}

private ConstantForce _constantForce = null;
public new ConstantForce constantForce
{
get { return _constantForce; }
}

private HingeJoint _hingeJoint = null;
public new HingeJoint hingeJoint
{
get { return _hingeJoint; }
}

private Light _light = null;
public new Light light
{
get { return _light; }
}

private ParticleEmitter _particleEmitter = null;
public new ParticleEmitter particleEmitter
{
get { return _particleEmitter; }
}

private ParticleSystem _particleSystem = null;
public new ParticleSystem particleSystem
{
get { return _particleSystem; }
}

private Renderer _renderer = null;
public new Renderer renderer
{
get { return _renderer; }
}

private Rigidbody _rigidbody = null;
public new Rigidbody rigidbody
{
get { return _rigidbody; }
}

private Rigidbody2D _rigidbody2D = null;
public new Rigidbody2D rigidbody2D
{
get { return rigidbody2D; }
}
}

But I was wondering if declaring all this Components would affect the size of the objects and so have a direct impacts on the performance?

Thanks

2

It’ll have a direct impact on ram, but that’s it. If it’s only a thousand objects or so I hardly think it will matter.

Performance won’t change unless of course you instantiate, then things might get downright dirty.

3

Ok Thanks for the answer that’s really helpful!

So if for example I instantiate objects on Start, this could have an impact ?

4

Yeah but that’s in start. It’s going to take a huge amount to to even slow down start. It’s bad during gameplay but not in start.

5

Perfect thanks a lot!

And what is your opinion? do you think it’s a good practice? Should I take all the components to override them ? Just somes ? Or do it specifically in all my scripts ?

6

I’m not sure why you would want to do this in unity 4. It makes no difference in Unity 4. In Unity 5, you’ll need to use GetComponent.

7

No I mean on awake I do something like _transform = base.transform.