A well okay - now. I found a way doing it with a clientOnly method and render it on the tileentity - see:

@SideOnly(Side.CLIENT)
public float clientVoltage;

        //Update method
       if(worldObj.isRemote)
       {
	this.clientVoltage=getVoltage();
       }

SO, that thing is fixed now - thanks

 

Don't use @SideOnly.. It is not for those cases.

Just use packet with the position to sync information.

(Keep in mind that clientside tileentity and serverside tileentity is different instance)

But it seems to be working perfectly fine.And my packet still won't work.

It works, but the point is you don't need a new variable to hold the information.  Just use the same variable you already had.  You're not going to break anything.

Yea, my problem is i do not know how to acces the coordinates in the packet or do i have to send them to some static variables?

*Facepalm*

 

You get the data out of the packet the same way it got in.  Its not fucking magic.

This post is getting out of control.

Probably yes, 4.2k views. I think many people wanna make an energysystem here

Okay, there still are some tiny bugs that i wanna fix but i don't know how:

1. When i connect two blocks e.g a powersource with a lantern, the lanternblock itself gets updatet(becomes a lightvalue), but not the blocks around it. Even if i make markBlockForUpdtate on it.

2. The voltage in a block itself does not get updated immediatly sometimes(At least it does not show up when i draw a string with that voltage)

 

PS: For number two, i use @SideOnly(Side.CLIENT) variables which i set in a (worldObj.isRemote) check.