How to capture input from the nifty console?

Hello all. I’m fairly new to this framework to please bear with me. Ok, so I’ve implemented the console and it works well - I know how can I register command etc. and they work like charm. However, what I’m trying to do is to create natural language and computational linguistic console. In other words - a console that would respond in some intelligent way basing on what you have input. This is an artificial intelligence area. I’ve started working on the parsing algorithms but I can’t test them because I don’t know how can I capture the input from the console :/. Here’s the code I’m using atm:


<?xml version=“1.0” encoding=“UTF-8”?>


<useControls filename=“nifty-default-controls.xml” />

<useStyles filename=“nifty-default-styles.xml” />

<screen id=“start”>

<layer id=“background” childLayout=“center”>


<layer id=“layerWithButtons” childLayout=“center” height=“100%” width=“100%”>

<panel id=“panelTop” height=“75%” width=“100%” align=“center” valign=“center” childLayout=“horizontal” visibleToMouse=“true”>

<panel id=“panelList” height=“75%” width=“70%” align=“center” valign=“center” childLayout=“horizontal” visibleToMouse=“true”>

<control id=“console” name=“nifty-console” lines=“25” align=“center” valign=“center”>






<screen id=“end”>

<layer id=“layer” backgroundColor="#0000" childLayout=“center”>

<panel id=“panel” height=“25%” width=“35%” align=“center” valign=“center” backgroundColor="#ffff" childLayout=“center” visibleToMouse=“true”>

<interact onClick=“quit()”/>


<onStartScreen name=“move” mode=“in” direction=“top” length=“300” startDelay=“0” inherit=“true”/>

<onEndScreen name=“move” mode=“out” direction=“bottom” length=“300” startDelay=“0” inherit=“true”/>

<onHover name=“pulsate” scaleFactor=“0.008” startColor="#f600" endColor="#ffff" post=“true”/>


<text id=“text” font=“aurulent-sans-16.fnt” color="#000f" text=“Welcome to 3D London Underground Simulator!” align=“center” valign=“center” />






[java]package mygame;


import com.jme3.material.Material;

import com.jme3.math.ColorRGBA;

import com.jme3.math.Vector3f;

import com.jme3.niftygui.NiftyJmeDisplay;

import com.jme3.renderer.RenderManager;

import com.jme3.scene.Geometry;

import com.jme3.scene.shape.Box;

import de.lessvoid.nifty.Nifty;

import de.lessvoid.nifty.controls.Console;

import de.lessvoid.nifty.controls.ConsoleCommands;

import de.lessvoid.nifty.controls.ConsoleCommands.ConsoleCommand;

import de.lessvoid.nifty.controls.ConsoleExecuteCommandEvent;

import de.lessvoid.nifty.screen.Screen;

import de.lessvoid.nifty.screen.ScreenController;

public class Main extends SimpleApplication implements ScreenController {

private Nifty nifty;

private Screen screen;

private Console console;

public static void main(String[] args) {

Main app = new Main();




public void simpleInitApp()


NiftyJmeDisplay niftyDisplay = new NiftyJmeDisplay(assetManager, inputManager, audioRenderer, viewPort);

nifty = niftyDisplay.getNifty();

nifty.fromXml(“Interface/screen.xml”, “start”);




console = nifty.getScreen(“start”).findNiftyControl(“console”, Console.class);

console.output(“Hello World :)”);


public void onConsoleExecuteCommandEvent(final String id, final ConsoleExecuteCommandEvent cEvent )


String consoleInput = cEvent.getCommandLine();




public void simpleUpdate(float tpf) {



public void simpleRender(RenderManager rm) {


public void bind(Nifty nifty, Screen screen) {




public void onStartScreen() {


public void onEndScreen() {




So what I want to do is:

  • capture input from the console
  • parse it using my algorithms
  • send an output back to the console

    I will gladly share the parsing algorithms to this forum when I finish them :slight_smile: - in the meantime, can anyone help me with this? I know I’m probably missing something trivial, but then again - I’m just a noobie. Any guidance is very much appreciated!

I’ve not used that control but it sounds like it is too high level for your purposes.

If you get the nifty sources you can pull out the control and do your own implementation of it. The control class will get a callback for every keypress so you can do whatever you like in there.

1 Like

hey zarch - thanks for the reply. Any sample code? I still can’t get used to the nifty GUI controls… How can I “pull out the control”?

After some further reading and few experiments I finally got it. zarch you’re legend! Thanks for the hint!

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Good luck, hope it does what you need :slight_smile: