I need to pass rgb variables to OnPhotonSerializeView.

I tried to do it like this:

    public void OnPhotonSerializeView(PhotonStream stream, PhotonMessageInfo info)
{
    if (stream.IsWriting)
    {
        stream.SendNext(healthCircle.color.r);
        stream.SendNext(healthCircle.color.g);
        stream.SendNext(healthCircle.color.b);
    }
    else 
    {
        healthCircle.color.r = (float)stream.ReceiveNext();
        healthCircle.color.g = (float)stream.ReceiveNext();
        healthCircle.color.b = (float)stream.ReceiveNext();
    }
}

After this i get an error:

Assets\Scripts\Player.cs(68,13): error CS1612: Cannot modify the return value of 'SpriteRenderer.color' because it is not a variable

I tried to search it in google but i didn't find anything. Sorry for my noob question. Waiting for your help :)

CodePudding user response：

SpriteRenderer.color (as most things in Unity) is a property which either returns or takes a complete Color as assignment.

In addition to that Color is a struct so a copy by value, not a reference type so even if you could do this what would happen here is

• You return the current healthCircle.color
• On this returned Color value you assign e.g. r = (float)stream.ReceiveNext();

=> So this

• would always return a new Color instance, a copy of the current one and assign only the one component there
• would have no effect since the healthCircle.color is never actually assigned a new value

What you want to do is rather either

var color = healthCircle.color;
color.r = (float)stream.ReceiveNext();
color.g = (float)stream.ReceiveNext();
color.b = (float)stream.ReceiveNext();
healthCircle.color = color;

or directly do

healthCircle.color = new Color((float)stream.ReceiveNext(), (float)stream.ReceiveNext(), (float)stream.ReceiveNext());