How do I bind a textField value to a variable from the game?
How to send or receive message? All the interactions will be non-interactive. The GUI will appear and change with different variable values of the game.
The documentations feels inadequate to me. 
Some insight would help.
Ok , i found how to do a basic binding, like the following
[java] private Element textArea;
public void bind(Nifty nifty, Screen screen) {
textArea = screen.findElementByName("text_area");
}[/java]
But, How do I change the GUI TextArea value when an in game event triggers. Say, when the player collect something the textArea value increases.
I tried with following, but this updates only at the beginning.But I need the GUI to call this method time to time.
[xml]<text id="text_area" font ="Interface/objective.fnt" style="nifty-label" color="#FFFFFF"
text="Crystal, ${CALL.niftyGetDataA()}!" align="center" valign="center"/>[/xml]
You can also do:
[java]
TextField myField = screen.findNiftyControl("textfieldID", TextField.class);
[/java]
and to write something into it you do:
[java]
myField.setText("myText");
[/java]