Hello there,
I’m trying to interface my operational car racing game with Nifty.
I want a Start Screen with a button on it saying “Start” (original) which when clicked will start the main screen and gameplay.
I’ve gone through the Nifty tutorials, have created an xml file for the screens thus
<?xml version="1.0" encoding="UTF-8"?>
<!--
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and open the template in the editor.
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<nifty xmlns="http://nifty-gui.sourceforge.net/nifty-1.3.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://nifty-gui.sourceforge.net/nifty-1.3.xsd http://nifty-gui.sourceforge.net/nifty-1.3.xsd">
<useStyles filename="nifty-default-styles.xml" />
<useControls filename="nifty-default-controls.xml" />
<screen id="start" controller="Reved.MyStartScreen">
<layer id="background" childLayout="center">
<image filename="Interface/start-background.png"></image>
</layer>
<layer id="foreground" childLayout="vertical">
<panel id="panel_top" height="25%" width="75%" align="center" childLayout="center">
<text text="REVED - An Exciting Motor Racing Game" font="Interface/Fonts/Default.fnt" width="100%" height="100%" />
</panel>
<panel id="panel_mid" height="50%" width="75%" align="center" childLayout="center">
<text text="" font="Interface/Fonts/Default.fnt" width="100%" height="100%" wrap="true" />
</panel>
<panel id="panel_bottom" height="25%" width="75%" align="center" childLayout="horizontal" >
<panel id="panel_bottom_left" height="50%" width="50%" valign="center" childLayout="center">
<control name="button" label="Start" id="StartButton" align="center" valign="center" visibleToMouse="true" >
<interact onClick="StartGame()" />
</control>
</panel>
<panel id="panel_bottom_right" height="50%" width="50%" valign="center" childLayout="center">
<control name="button" label="Quit" id="QuitButton" align="center" valign="center" visibleToMouse="true" >
<interact onClick="QuitGame()" />
</control>
</panel>
</panel>
</layer>
</screen>
<screen id="hud">
<layer id="background" childLayout="center">
<image filename="Interface/hud-frame.png"></image>
</layer>
<layer id="foreground" childLayout="horizontal">
<panel id="panel_left" width="80%" height="100%" childLayout="vertical" ></panel>
<panel id="panel_right" width="20%" height="100%" childLayout="vertical">
<panel id="panel_top_right1" width="100%" height="15%" childLayout="center">
<control name="label" color="#000" text="123" width="100%" height="100%" />
</panel>
<panel id="panel_top_right2" width="100%" height="15%" childLayout="center">
<image filename="Interface/face1.png" valign="center" align="center" height="50%" width="30%" ></image>
</panel>
<panel id="panel_bot_right" width="100%" height="70%" valign="center" ></panel>
</panel>
</layer>
</screen>
</nifty>
The Screen Controller is called MyStartScreen.java
/*
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* and open the template in the editor.
*/
package Reved;
import com.jme3.app.Application;
import com.jme3.app.SimpleApplication;
import com.jme3.app.state.AbstractAppState;
import com.jme3.app.state.AppStateManager;
import com.jme3.asset.AssetManager;
import com.jme3.math.ColorRGBA;
import com.jme3.renderer.ViewPort;
import com.jme3.scene.Node;
import de.lessvoid.nifty.Nifty;
import de.lessvoid.nifty.screen.Screen;
import de.lessvoid.nifty.screen.ScreenController;
/**
*
* @author steve
*/
public class MyStartScreen extends AbstractAppState
implements ScreenController {
private ViewPort viewPort;
private Node rootNode;
private Node guiNode;
private AssetManager assetManager;
private Node localRootNode = new Node("Start Screen RootNode");
private Node localGuiNode = new Node("Start Screen GuiNode");
private final ColorRGBA backgroundColor = ColorRGBA.Gray;
public MyStartScreen(SimpleApplication app)
{
this.rootNode = app.getRootNode();
this.viewPort = app.getViewPort();
this.guiNode = app.getGuiNode();
this.assetManager = app.getAssetManager();
}
@Override
public void initialize(AppStateManager stateManager, Application app) {
super.initialize(stateManager, app);
//TODO: initialize your AppState, e.g. attach spatials to rootNode
//this is called on the OpenGL thread after the AppState has been attached
}
@Override
public void update(float tpf) {
//TODO: implement behavior during runtime
}
@Override
public void cleanup() {
super.cleanup();
//TODO: clean up what you initialized in the initialize method,
//e.g. remove all spatials from rootNode
//this is called on the OpenGL thread after the AppState has been detached
}
@Override
public void bind(Nifty nifty, Screen screen) {
// throw new UnsupportedOperationException("Not supported yet.");
}
public void onStartScreen() {
// throw new UnsupportedOperationException("Not supported yet.");
}
public void onEndScreen() {
// throw new UnsupportedOperationException("Not supported yet.");
// app.stop();
}
//.............................................
//..Start the Game
//.............................................
public void StartGame()
{
System.out.println("In Start Game") ;
// app.simpleInitApp1() ; // does not recognise app
// Started = true;
}
//..............................................
//.. Quit the Game
//..............................................
public void QuitGame()
{
// app.stop();
}
}
The bulk of the code is in the Reved class, the bit that initialises the Nifty interface is called from SimpleInitApp
public void SetupNifty()
{
startScreen = new MyStartScreen(this);
stateManager.attach(startScreen);
niftyDisplay = new NiftyJmeDisplay(assetManager, inputManager, audioRenderer, guiViewPort);
nifty = niftyDisplay.getNifty();
guiViewPort.addProcessor(niftyDisplay);
nifty.fromXml("Interface/screens.xml", "start", startScreen);
//nifty.setDebugOptionPanelColors(true); //un-comment this line to use DebugPanelColors and make sure Nifty is running correctly.
flyCam.setDragToRotate(true); //detaches camera from mouse unless you click/drag.
}
/***************************************************
* Initialise the App
***************************************************/
@Override
public void simpleInitApp()
{
SetupNifty() ;
Started = false ;
}
The main class initialises the Reved Application
- To change this template, choose Tools | Templates
- and open the template in the editor.
*/
package Reved;
import com.jme3.app.SimpleApplication;
import com.jme3.niftygui.NiftyJmeDisplay;
import de.lessvoid.nifty.Nifty;
/**
*
-
@author steve
*/public class Main {
public static void main(String[] args) { Reved app = new Reved(); app.start(); }}
The Start button is wired to the StartGame() function in MyStartScreen.java, and I want this to call SimpleInitApp1 in the Reved class which sets the game running.
On running , the Start Screen appears, when the Start button is clicked it prints an output to the console, but I cannot access SimpleInitApp1 through the app variable.
What am I missing ?
