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-<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge"><![endif]--><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="Asciidoctor 1.5.4"><title>Simple AppStates Demo</title><link rel="stylesheet" href="./asciidoctor.css">
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-<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.5.0/css/font-awesome.min.css">
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-<link rel="stylesheet" href="./coderay-asciidoctor.css"><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.css"></head><body class="article toc2 toc-left"><div id="header"><div id="toolbar"><a href="https://github.com/jMonkeyEngine/wiki/edit/master/src/docs/asciidoc/jme3/advanced/appstatesdemo.adoc"><i class="fa fa-pencil-square" aria-hidden="true"></i></a><a href="https://github.com/jMonkeyEngine/wiki/new/master/src/docs/asciidoc/jme3/advanced/"><i class="fa fa-plus-square" aria-hidden="true"></i></a><input dir="auto" style="position: relative; vertical-align: top;" spellcheck="false" autocomplete="off" class="searchbox__input aa-input" id="doc-search" name="search" placeholder="Search in the doc" required="required" type="search"></div><h1>Simple AppStates Demo</h1><div class="details"><span class="author" id="author"></span><br><span id="revnumber">version ,</span> <span id="revdate">2016/03/17 20:48</span></div><div id="toc" class="toc2"><div id="toctitle">Table of Contents</div><ul class="sectlevel1"><li><a href="#this-demo-is-out-of-date-and-needs-correcting-for-now-please-see">THIS DEMO IS OUT OF DATE AND NEEDS CORRECTING FOR NOW PLEASE SEE</a><ul class="sectlevel2"><li><a href="#main-java">Main.java</a></li><li><a href="#gamerunningstate-java">GameRunningState.java</a></li><li><a href="#settingsscreenstate-java">SettingsScreenState.java</a></li><li><a href="#startscreenstate-java">StartScreenState.java</a></li></ul></li></ul></div></div><div id="content"><div id="preamble"><div class="sectionbody"><div class="admonitionblock important"><table><tr><td class="icon"><i class="fa icon-important" title="Important"></i></td><td class="content"><div class="paragraph"><p>THIS DEMO IS OUT OF DATE AND NEEDS CORRECTING</p></div></td></tr></table></div></div></div>
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-<div class="sect2"><h3 id="this-demo-is-out-of-date-and-needs-correcting-for-now-please-see">THIS DEMO IS OUT OF DATE AND NEEDS CORRECTING FOR NOW PLEASE SEE</h3><div class="literalblock"><div class="content"><pre><<jme3/advanced/application_states#,jme3:advanced:application_states>></pre></div></div>
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-<div class="paragraph"><p>Note: this tutorial needs to be fixed and is currently not correct. One should almost never override stateDetached and stateAttached… and should certainly never do anything scene related in them.</p></div>
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-<div class="paragraph"><p>This demo is a simple example of how you use AppStates to toggle between a StartScreen and a SettingsScreen (press RETURN) while the game is paused, and start the game by switching to a GameRunning state (press BACKSPACE).</p></div>
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-<div class="paragraph"><p>There are four files, Main.java, GameRunningState.java, StartScreenState.java, SettingsScreenState.java.</p></div>
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-<div class="sect2"><h3 id="main-java">Main.java</h3><div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">chapter04.appstatedemo</span>;
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-
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-<span class="keyword">import</span> <span class="include">com.jme3.app.SimpleApplication</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.input.KeyInput</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.input.controls.ActionListener</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.input.controls.KeyTrigger</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.input.controls.Trigger</span>;
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-
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-<span class="comment">/**
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- * This demo shows a simple "game" with three AppStates. Instead of game content,
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- * it just displays three cubes on different backgrounds.
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- * <ul>
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- * <li>StartScreenState: This state is enabled
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- * when the user starts the application, or the the game is paused.
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- * Press BACKSPACE to return to the game, press RETURN to go to Settings.</li>
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- * <li>GameRunningState: This state shows the game content and is enabled while the game is running.
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- * Press BACKSPACE to pause and return to the start screen.</li>
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- * <li>SettingsScreenState: This Settings screen state can be reached from the start screen
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- * Press RETURN to toggle it on and off.</li>
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- * </ul>
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- */</span>
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-<span class="directive">public</span> <span class="type">class</span> <span class="class">Main</span> <span class="directive">extends</span> SimpleApplication {
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-
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- <span class="directive">private</span> Trigger pause_trigger = <span class="keyword">new</span> KeyTrigger(KeyInput.KEY_BACK);
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- <span class="directive">private</span> Trigger save_trigger = <span class="keyword">new</span> KeyTrigger(KeyInput.KEY_RETURN);
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- <span class="directive">private</span> <span class="type">boolean</span> isRunning = <span class="predefined-constant">false</span>; <span class="comment">// starts at startscreen</span>
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- <span class="directive">private</span> GameRunningState gameRunningState;
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- <span class="directive">private</span> StartScreenState startScreenState;
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- <span class="directive">private</span> SettingsScreenState settingsScreenState;
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-
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-
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- <span class="comment">/** Start the jMonkeyEngine application */</span>
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- <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> main(<span class="predefined-type">String</span><span class="type">[]</span> args) {
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- Main app = <span class="keyword">new</span> Main();
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- app.start();
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- }
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-
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- <span class="comment">/**
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- * initialize the scene here
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- */</span>
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> simpleInitApp() {
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- setDisplayFps(<span class="predefined-constant">false</span>);
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- setDisplayStatView(<span class="predefined-constant">false</span>);
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-
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- gameRunningState = <span class="keyword">new</span> GameRunningState(<span class="local-variable">this</span>);
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- startScreenState = <span class="keyword">new</span> StartScreenState(<span class="local-variable">this</span>);
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- settingsScreenState = <span class="keyword">new</span> SettingsScreenState(<span class="local-variable">this</span>);
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-
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- stateManager.attach(startScreenState);
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-
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- inputManager.addMapping(<span class="string"><span class="delimiter">"</span><span class="content">Game Pause Unpause</span><span class="delimiter">"</span></span>, pause_trigger);
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- inputManager.addListener(actionListener, <span class="keyword">new</span> <span class="predefined-type">String</span><span class="type">[]</span>{<span class="string"><span class="delimiter">"</span><span class="content">Game Pause Unpause</span><span class="delimiter">"</span></span>});
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- inputManager.addMapping(<span class="string"><span class="delimiter">"</span><span class="content">Toggle Settings</span><span class="delimiter">"</span></span>, save_trigger);
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- inputManager.addListener(actionListener, <span class="keyword">new</span> <span class="predefined-type">String</span><span class="type">[]</span>{<span class="string"><span class="delimiter">"</span><span class="content">Toggle Settings</span><span class="delimiter">"</span></span>});
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- }
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-
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- <span class="directive">private</span> <span class="predefined-type">ActionListener</span> actionListener = <span class="keyword">new</span> <span class="predefined-type">ActionListener</span>() {
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- <span class="directive">public</span> <span class="type">void</span> onAction(<span class="predefined-type">String</span> name, <span class="type">boolean</span> isPressed, <span class="type">float</span> tpf) {
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- <span class="predefined-type">System</span>.out.println(<span class="string"><span class="delimiter">"</span><span class="content">key</span><span class="delimiter">"</span></span> + name);
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- <span class="keyword">if</span> (name.equals(<span class="string"><span class="delimiter">"</span><span class="content">Game Pause Unpause</span><span class="delimiter">"</span></span>) && !isPressed) {
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- <span class="keyword">if</span> (isRunning) {
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- stateManager.detach(gameRunningState);
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- stateManager.attach(startScreenState);
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- <span class="predefined-type">System</span>.out.println(<span class="string"><span class="delimiter">"</span><span class="content">switching to startscreen...</span><span class="delimiter">"</span></span>);
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-
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- } <span class="keyword">else</span> {
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- stateManager.detach(startScreenState);
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- stateManager.attach(gameRunningState);
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- <span class="predefined-type">System</span>.out.println(<span class="string"><span class="delimiter">"</span><span class="content">switching to game...</span><span class="delimiter">"</span></span>);
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- }
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- isRunning = !isRunning;
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- } <span class="keyword">else</span> <span class="keyword">if</span> (name.equals(<span class="string"><span class="delimiter">"</span><span class="content">Toggle Settings</span><span class="delimiter">"</span></span>) && !isPressed && !isRunning) {
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- <span class="keyword">if</span> (!isRunning && stateManager.hasState(startScreenState)) {
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- stateManager.detach(startScreenState);
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- stateManager.attach(settingsScreenState);
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- <span class="predefined-type">System</span>.out.println(<span class="string"><span class="delimiter">"</span><span class="content">switching to settings...</span><span class="delimiter">"</span></span>);
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- } <span class="keyword">else</span> <span class="keyword">if</span> (!isRunning && stateManager.hasState(settingsScreenState)) {
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- stateManager.detach(settingsScreenState);
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- stateManager.attach(startScreenState);
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- <span class="predefined-type">System</span>.out.println(<span class="string"><span class="delimiter">"</span><span class="content">switching to startscreen...</span><span class="delimiter">"</span></span>);
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- }
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- }
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- }
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- };
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-
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> simpleUpdate(<span class="type">float</span> tpf) {}
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-
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-}</code></pre></div></div></div>
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-<div class="sect2"><h3 id="gamerunningstate-java">GameRunningState.java</h3><div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">chapter04.appstatedemo</span>;
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-
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-<span class="keyword">import</span> <span class="include">com.jme3.app.Application</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.SimpleApplication</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AbstractAppState</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AppStateManager</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.asset.AssetManager</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapFont</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapText</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.material.Material</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.math.ColorRGBA</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.math.Vector3f</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.renderer.ViewPort</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.Geometry</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.Node</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.shape.Box</span>;
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-
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-<span class="comment">/**
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- * A template how to create an Application State. This example state simply
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- * changes the background color depending on the camera position.
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- */</span>
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-<span class="directive">public</span> <span class="type">class</span> <span class="class">GameRunningState</span> <span class="directive">extends</span> AbstractAppState {
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-
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- <span class="directive">private</span> ViewPort viewPort;
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- <span class="directive">private</span> Node rootNode;
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- <span class="directive">private</span> Node guiNode;
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- <span class="directive">private</span> AssetManager assetManager;
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- <span class="directive">private</span> Node localRootNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Game Screen RootNode</span><span class="delimiter">"</span></span>);
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- <span class="directive">private</span> Node localGuiNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Game Screen GuiNode</span><span class="delimiter">"</span></span>);
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- <span class="directive">private</span> <span class="directive">final</span> ColorRGBA backgroundColor = ColorRGBA.Blue;
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-
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- <span class="directive">public</span> GameRunningState(SimpleApplication app){
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- <span class="local-variable">this</span>.rootNode = app.getRootNode();
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- <span class="local-variable">this</span>.viewPort = app.getViewPort();
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- <span class="local-variable">this</span>.guiNode = app.getGuiNode();
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- <span class="local-variable">this</span>.assetManager = app.getAssetManager();
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- }
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-
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> initialize(AppStateManager stateManager, Application app) {
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- <span class="local-variable">super</span>.initialize(stateManager, app);
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-
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- <span class="comment">/** Load this scene */</span>
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- viewPort.setBackgroundColor(backgroundColor);
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-
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- <span class="predefined-type">Box</span> mesh = <span class="keyword">new</span> <span class="predefined-type">Box</span>(Vector3f.ZERO, <span class="integer">1</span>, <span class="integer">1</span>, <span class="integer">1</span>);
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- Geometry geom = <span class="keyword">new</span> Geometry(<span class="string"><span class="delimiter">"</span><span class="content">Box</span><span class="delimiter">"</span></span>, mesh);
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- Material mat = <span class="keyword">new</span> Material(assetManager,
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- <span class="string"><span class="delimiter">"</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">"</span></span>);
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- mat.setColor(<span class="string"><span class="delimiter">"</span><span class="content">Color</span><span class="delimiter">"</span></span>, ColorRGBA.Green);
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- geom.setMaterial(mat);
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- geom.setLocalTranslation(<span class="integer">1</span>, <span class="integer">0</span>, <span class="integer">0</span>);
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- localRootNode.attachChild(geom);
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-
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- <span class="comment">/** Load the HUD*/</span>
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- BitmapFont guiFont = assetManager.loadFont(
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- <span class="string"><span class="delimiter">"</span><span class="content">Interface/Fonts/Default.fnt</span><span class="delimiter">"</span></span>);
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- BitmapText displaytext = <span class="keyword">new</span> BitmapText(guiFont);
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- displaytext.setSize(guiFont.getCharSet().getRenderedSize());
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- displaytext.move(<span class="integer">10</span>, displaytext.getLineHeight() + <span class="integer">20</span>, <span class="integer">0</span>);
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- displaytext.setText(<span class="string"><span class="delimiter">"</span><span class="content">Game running. Press BACKSPACE to pause and return to the start screen.</span><span class="delimiter">"</span></span>);
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- localGuiNode.attachChild(displaytext);
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- }
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-
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> update(<span class="type">float</span> tpf) {
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- <span class="comment">/** the action happens here */</span>
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- Vector3f v = viewPort.getCamera().getLocation();
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- viewPort.setBackgroundColor(<span class="keyword">new</span> ColorRGBA(v.getX() / <span class="integer">10</span>, v.getY() / <span class="integer">10</span>, v.getZ() / <span class="integer">10</span>, <span class="integer">1</span>));
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- rootNode.getChild(<span class="string"><span class="delimiter">"</span><span class="content">Box</span><span class="delimiter">"</span></span>).rotate(tpf, tpf, tpf);
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- }
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-
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> stateAttached(AppStateManager stateManager) {
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- rootNode.attachChild(localRootNode);
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- guiNode.attachChild(localGuiNode);
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- viewPort.setBackgroundColor(backgroundColor);
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- }
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-
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- <span class="annotation">@Override</span>
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- <span class="directive">public</span> <span class="type">void</span> stateDetached(AppStateManager stateManager) {
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- rootNode.detachChild(localRootNode);
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- guiNode.detachChild(localGuiNode);
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-
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- }
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-
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-}</code></pre></div></div></div>
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-<div class="sect2"><h3 id="settingsscreenstate-java">SettingsScreenState.java</h3><div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">chapter04.appstatedemo</span>;
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-
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-<span class="keyword">import</span> <span class="include">com.jme3.app.Application</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.SimpleApplication</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AbstractAppState</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AppStateManager</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.asset.AssetManager</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapFont</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapText</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.material.Material</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.math.ColorRGBA</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.math.Vector3f</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.renderer.ViewPort</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.Geometry</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.Node</span>;
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-<span class="keyword">import</span> <span class="include">com.jme3.scene.shape.Box</span>;
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-
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-<span class="comment">/**
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- * A template how to create an Application State. This example state simply
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- * changes the background color depending on the camera position.
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- */</span>
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-<span class="directive">public</span> <span class="type">class</span> <span class="class">SettingsScreenState</span> <span class="directive">extends</span> AbstractAppState {
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-
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- <span class="directive">private</span> ViewPort viewPort;
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- <span class="directive">private</span> Node rootNode;
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- <span class="directive">private</span> Node guiNode;
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- <span class="directive">private</span> AssetManager assetManager;
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- <span class="directive">private</span> Node localRootNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Settings Screen RootNode</span><span class="delimiter">"</span></span>);
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- <span class="directive">private</span> Node localGuiNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Settings Screen GuiNode</span><span class="delimiter">"</span></span>);
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- <span class="directive">private</span> <span class="directive">final</span> ColorRGBA backgroundColor = ColorRGBA.DarkGray;
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-
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|
- <span class="directive">public</span> SettingsScreenState(SimpleApplication app) {
|
|
|
- <span class="local-variable">this</span>.rootNode = app.getRootNode();
|
|
|
- <span class="local-variable">this</span>.viewPort = app.getViewPort();
|
|
|
- <span class="local-variable">this</span>.guiNode = app.getGuiNode();
|
|
|
- <span class="local-variable">this</span>.assetManager = app.getAssetManager();
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> initialize(AppStateManager stateManager, Application app) {
|
|
|
- <span class="local-variable">super</span>.initialize(stateManager, app);
|
|
|
-
|
|
|
- <span class="comment">/** Load this scene */</span>
|
|
|
- viewPort.setBackgroundColor(backgroundColor);
|
|
|
-
|
|
|
- <span class="predefined-type">Box</span> mesh = <span class="keyword">new</span> <span class="predefined-type">Box</span>(<span class="keyword">new</span> Vector3f(-<span class="integer">1</span>, -<span class="integer">1</span>, <span class="integer">0</span>), <span class="float">.5f</span>, <span class="float">.5f</span>, <span class="float">.5f</span>);
|
|
|
- Geometry geom = <span class="keyword">new</span> Geometry(<span class="string"><span class="delimiter">"</span><span class="content">Box</span><span class="delimiter">"</span></span>, mesh);
|
|
|
- Material mat = <span class="keyword">new</span> Material(assetManager,
|
|
|
- <span class="string"><span class="delimiter">"</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">"</span></span>);
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|
|
- mat.setColor(<span class="string"><span class="delimiter">"</span><span class="content">Color</span><span class="delimiter">"</span></span>, ColorRGBA.Red);
|
|
|
- geom.setMaterial(mat);
|
|
|
- geom.setLocalTranslation(<span class="integer">1</span>, <span class="integer">0</span>, <span class="integer">0</span>);
|
|
|
- localRootNode.attachChild(geom);
|
|
|
-
|
|
|
- <span class="comment">/** Load the HUD */</span>
|
|
|
- BitmapFont guiFont = assetManager.loadFont(
|
|
|
- <span class="string"><span class="delimiter">"</span><span class="content">Interface/Fonts/Default.fnt</span><span class="delimiter">"</span></span>);
|
|
|
- BitmapText displaytext = <span class="keyword">new</span> BitmapText(guiFont);
|
|
|
- displaytext.setSize(guiFont.getCharSet().getRenderedSize());
|
|
|
- displaytext.move(<span class="integer">10</span>, displaytext.getLineHeight() + <span class="integer">20</span>, <span class="integer">0</span>);
|
|
|
- displaytext.setText(<span class="string"><span class="delimiter">"</span><span class="content">Settings screen. Press RETURN to save </span><span class="delimiter">"</span></span>
|
|
|
- + <span class="string"><span class="delimiter">"</span><span class="content">and return to start screen.</span><span class="delimiter">"</span></span>);
|
|
|
- localGuiNode.attachChild(displaytext);
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> update(<span class="type">float</span> tpf) {
|
|
|
- <span class="comment">/** the action happens here */</span>
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> stateAttached(AppStateManager stateManager) {
|
|
|
- rootNode.attachChild(localRootNode);
|
|
|
- guiNode.attachChild(localGuiNode);
|
|
|
- viewPort.setBackgroundColor(backgroundColor);
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> stateDetached(AppStateManager stateManager) {
|
|
|
- rootNode.detachChild(localRootNode);
|
|
|
- guiNode.detachChild(localGuiNode);
|
|
|
- }
|
|
|
-
|
|
|
-}</code></pre></div></div></div>
|
|
|
-<div class="sect2"><h3 id="startscreenstate-java">StartScreenState.java</h3><div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">chapter04.appstatedemo</span>;
|
|
|
-
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.app.Application</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.app.SimpleApplication</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AbstractAppState</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.app.state.AppStateManager</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.asset.AssetManager</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapFont</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.font.BitmapText</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.material.Material</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.math.ColorRGBA</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.math.Vector3f</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.renderer.ViewPort</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.scene.Geometry</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.scene.Node</span>;
|
|
|
-<span class="keyword">import</span> <span class="include">com.jme3.scene.shape.Box</span>;
|
|
|
-
|
|
|
-<span class="comment">/**
|
|
|
- * A template how to create an Application State. This example state simply
|
|
|
- * changes the background color depending on the camera position.
|
|
|
- */</span>
|
|
|
-<span class="directive">public</span> <span class="type">class</span> <span class="class">StartScreenState</span> <span class="directive">extends</span> AbstractAppState {
|
|
|
-
|
|
|
- <span class="directive">private</span> ViewPort viewPort;
|
|
|
- <span class="directive">private</span> Node rootNode;
|
|
|
- <span class="directive">private</span> Node guiNode;
|
|
|
- <span class="directive">private</span> AssetManager assetManager;
|
|
|
- <span class="directive">private</span> Node localRootNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Start Screen RootNode</span><span class="delimiter">"</span></span>);
|
|
|
- <span class="directive">private</span> Node localGuiNode = <span class="keyword">new</span> Node(<span class="string"><span class="delimiter">"</span><span class="content">Start Screen GuiNode</span><span class="delimiter">"</span></span>);
|
|
|
- <span class="directive">private</span> <span class="directive">final</span> ColorRGBA backgroundColor = ColorRGBA.Gray;
|
|
|
-
|
|
|
-<span class="directive">public</span> StartScreenState(SimpleApplication app){
|
|
|
- <span class="local-variable">this</span>.rootNode = app.getRootNode();
|
|
|
- <span class="local-variable">this</span>.viewPort = app.getViewPort();
|
|
|
- <span class="local-variable">this</span>.guiNode = app.getGuiNode();
|
|
|
- <span class="local-variable">this</span>.assetManager = app.getAssetManager();
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> initialize(AppStateManager stateManager, Application app) {
|
|
|
- <span class="local-variable">super</span>.initialize(stateManager, app);
|
|
|
-
|
|
|
- <span class="comment">/** Init this scene */</span>
|
|
|
- viewPort.setBackgroundColor(backgroundColor);
|
|
|
-
|
|
|
- <span class="predefined-type">Box</span> mesh = <span class="keyword">new</span> <span class="predefined-type">Box</span>(<span class="keyword">new</span> Vector3f(-<span class="integer">1</span>,<span class="integer">1</span>,<span class="integer">0</span>), <span class="float">.5f</span>,<span class="float">.5f</span>,<span class="float">.5f</span>);
|
|
|
- Geometry geom = <span class="keyword">new</span> Geometry(<span class="string"><span class="delimiter">"</span><span class="content">Box</span><span class="delimiter">"</span></span>, mesh);
|
|
|
- Material mat = <span class="keyword">new</span> Material(assetManager,
|
|
|
- <span class="string"><span class="delimiter">"</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">"</span></span>);
|
|
|
- mat.setColor(<span class="string"><span class="delimiter">"</span><span class="content">Color</span><span class="delimiter">"</span></span>, ColorRGBA.Yellow);
|
|
|
- geom.setMaterial(mat);
|
|
|
- geom.setLocalTranslation(<span class="integer">1</span>, <span class="integer">0</span>, <span class="integer">0</span>);
|
|
|
- localRootNode.attachChild(geom);
|
|
|
-
|
|
|
- <span class="comment">/** Load a HUD */</span>
|
|
|
- BitmapFont guiFont = assetManager.loadFont(
|
|
|
- <span class="string"><span class="delimiter">"</span><span class="content">Interface/Fonts/Default.fnt</span><span class="delimiter">"</span></span>);
|
|
|
- BitmapText displaytext = <span class="keyword">new</span> BitmapText(guiFont);
|
|
|
- displaytext.setSize(guiFont.getCharSet().getRenderedSize());
|
|
|
- displaytext.move( <span class="integer">10</span>, displaytext.getLineHeight() + <span class="integer">20</span>, <span class="integer">0</span>);
|
|
|
- displaytext.setText(<span class="string"><span class="delimiter">"</span><span class="content">Start screen. Press BACKSPACE to resume the game, </span><span class="delimiter">"</span></span>
|
|
|
- + <span class="string"><span class="delimiter">"</span><span class="content">press RETURN to edit Settings.</span><span class="delimiter">"</span></span>);
|
|
|
- localGuiNode.attachChild(displaytext);
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> update(<span class="type">float</span> tpf) {
|
|
|
- <span class="comment">/** the action happens here */</span>
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> stateAttached(AppStateManager stateManager) {
|
|
|
- rootNode.attachChild(localRootNode);
|
|
|
- guiNode.attachChild(localGuiNode);
|
|
|
- viewPort.setBackgroundColor(backgroundColor);
|
|
|
- }
|
|
|
-
|
|
|
- <span class="annotation">@Override</span>
|
|
|
- <span class="directive">public</span> <span class="type">void</span> stateDetached(AppStateManager stateManager) {
|
|
|
- rootNode.detachChild(localRootNode);
|
|
|
- guiNode.detachChild(localGuiNode);
|
|
|
- }
|
|
|
-
|
|
|
-}</code></pre></div></div></div></div></div><div id="footer"><div id="footer-text">Version <br>Last updated 2019-02-17 04:54:10 +00:00</div></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/2/docsearch.min.js"></script><script>docsearch({
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