I've been making a block with a GUI that has a number of buttons on it, each of which will teleport the player to a different dimension. The problem, however, is that I can't seem to find a way to do this. I looked at how a standard portal does it, but that requires a worldserver as a parameter, which I don't know how to access from there. The function the button's code runs in is as follows:

public void actionPerformed(GuiButton button){
	switch(button.id){

	case 0: /**Button code is here**/
	case 1:
	case 2:

	}
}

 

Anyone know how I would go about doing this?

I suspected something like that, thanks!