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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>hellovector</title><link rel="stylesheet" href="./asciidoctor.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"><link rel="stylesheet" href="/home/travis/build/jMonkeyEngine/wiki/build/asciidoc/html5/jme3/beginner/twemoji-awesome.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/beginner/hellovector.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/beginner/"><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>hellovector</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></div></div><div id="content"><div class="paragraph"><p><span class="image"><img src="../../jme3/beginner/hellovectorsumm2.png" alt="hellovectorsumm2.png" width="" height=""></span></p></div>
<div class="paragraph"><p>HelloVectorSumm.java</p></div>
<div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">org.jmonkey.chapter2.hellovector</span>;

<span class="keyword">import</span> <span class="include">com.jme3.app.SimpleApplication</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.RenderManager</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="keyword">import</span> <span class="include">org.jmonkey.utils.Debug</span>;
<span class="keyword">import</span> <span class="include">org.jmonkey.utils.MaterialUtils</span>;
<span class="keyword">import</span> <span class="include">org.jmonkey.utils.SpatialUtils</span>;

<span class="comment">/**
 Example Vector Summ

 @author Alex Cham aka Jcrypto
 */</span>
<span class="directive">public</span> <span class="type">class</span> <span class="class">HelloVectorSumm</span> <span class="directive">extends</span> SimpleApplication
{

    <span class="directive">private</span> Node vctrNode = SpatialUtils.makeNode(<span class="string"><span class="delimiter">&quot;</span><span class="content">vectorNode</span><span class="delimiter">&quot;</span></span>);
    <span class="comment">//</span>
    <span class="directive">private</span> Vector3f vctrNodeLoc = <span class="keyword">new</span> Vector3f(<span class="float">64.0f</span>, <span class="float">64.0f</span>, <span class="float">64.0f</span>);
    <span class="directive">private</span> Vector3f camLocVctr = <span class="keyword">new</span> Vector3f(<span class="float">512.0f</span>, <span class="float">64.0f</span>, <span class="float">0.0f</span>);
    <span class="comment">//</span>
    <span class="directive">private</span> Vector3f vctrNodeSpatLoc = <span class="keyword">new</span> Vector3f(<span class="float">64.0f</span>, <span class="float">128.0f</span>, -<span class="float">32.0f</span>);
    <span class="comment">//</span>
    <span class="directive">private</span> Vector3f vctrSumm = <span class="predefined-constant">null</span>;
    <span class="directive">private</span> Vector3f scale = <span class="keyword">new</span> Vector3f(<span class="integer">8</span>, <span class="integer">8</span>, <span class="integer">8</span>);

    <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)
    {
        HelloVectorSumm app = <span class="keyword">new</span> HelloVectorSumm();
        <span class="comment">//app.setShowSettings(false);</span>
        app.start();
    }

    <span class="annotation">@Override</span>
    <span class="directive">public</span> <span class="type">void</span> simpleInitApp()
    {
        cam.setLocation(camLocVctr);
        cam.lookAt(Vector3f.ZERO, cam.getUp());
        flyCam.setMoveSpeed(<span class="float">100.0f</span>);
        <span class="comment">//</span>
        Debug.showNodeAxes(assetManager, rootNode, <span class="integer">128</span>);
        Debug.attachWireFrameDebugGrid(assetManager, rootNode, Vector3f.ZERO, <span class="integer">256</span>, ColorRGBA.DarkGray);

        <span class="comment">//</span>
        <span class="predefined-type">Box</span> box = <span class="keyword">new</span> <span class="predefined-type">Box</span>(<span class="integer">1</span>, <span class="integer">1</span>, <span class="integer">1</span>);
        <span class="comment">//</span>
        Material mat = MaterialUtils.makeMaterial(assetManager, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>, ColorRGBA.Blue);
        Geometry geom = SpatialUtils.makeGeometry(vctrNodeSpatLoc, scale, box, mat, <span class="string"><span class="delimiter">&quot;</span><span class="content">box</span><span class="delimiter">&quot;</span></span>);
        vctrNode.attachChild(geom);
        vctrNode.setLocalTranslation(vctrNodeLoc);
        vctrSumm = vctrNodeLoc.add(vctrNodeSpatLoc);
        <span class="comment">//</span>
        Debug.showNodeAxes(assetManager, vctrNode, <span class="float">4.0f</span>);
        Debug.showVector3fArrow(assetManager, rootNode, vctrNodeLoc, ColorRGBA.Red, <span class="string"><span class="delimiter">&quot;</span><span class="content">vctrNodeLoc</span><span class="delimiter">&quot;</span></span>);
        Debug.showVector3fArrow(assetManager, vctrNode, vctrNodeSpatLoc, ColorRGBA.Green, <span class="string"><span class="delimiter">&quot;</span><span class="content">vctrNodeSpatLoc</span><span class="delimiter">&quot;</span></span>);
        Debug.showVector3fArrow(assetManager, rootNode, vctrSumm, ColorRGBA.Blue, <span class="string"><span class="delimiter">&quot;</span><span class="content">vctrSumm</span><span class="delimiter">&quot;</span></span>);
        <span class="comment">//</span>
        rootNode.attachChild(vctrNode);
    }

    <span class="annotation">@Override</span>
    <span class="directive">public</span> <span class="type">void</span> simpleUpdate(<span class="type">float</span> tpf)
    {
        <span class="comment">//n.move(tpf * 10, 0, 0);</span>
    }

    <span class="annotation">@Override</span>
    <span class="directive">public</span> <span class="type">void</span> simpleRender(RenderManager rm)
    {
        <span class="comment">//TODO: add render code</span>
    }
}</code></pre></div></div>
<div class="paragraph"><p>—</p></div>
<div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">org.jmonkey.utils</span>;

<span class="keyword">import</span> <span class="include">com.jme3.asset.AssetManager</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="comment">/**
 * Example Vector Summ
 * @author Alex Cham aka Jcrypto
 */</span>

<span class="directive">public</span> <span class="type">class</span> <span class="class">MaterialUtils</span>
{

    <span class="directive">public</span> MaterialUtils()
    {
    }


    <span class="comment">//&quot;Common/MatDefs/Misc/Unshaded.j3md&quot;</span>
    <span class="directive">public</span> <span class="directive">static</span> Material makeMaterial(AssetManager am, <span class="predefined-type">String</span> name, ColorRGBA color)
    {
        Material mat = <span class="keyword">new</span> Material(am, name);
        mat.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, color);
        <span class="keyword">return</span> mat;
    }
}</code></pre></div></div>
<div class="paragraph"><p>—</p></div>
<div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">org.jmonkey.utils</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.Vector3f</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.Mesh</span>;
<span class="keyword">import</span> <span class="include">com.jme3.scene.Node</span>;

<span class="comment">/**
 * Example Vector Summ
 * @author Alex Cham aka Jcrypto
 */</span>
<span class="directive">public</span> <span class="type">class</span> <span class="class">SpatialUtils</span>
{
    <span class="comment">//</span>
    <span class="directive">public</span> <span class="directive">static</span> Node makeNode(<span class="predefined-type">String</span> name)
    {
        Node n = <span class="keyword">new</span> Node(name);
        <span class="keyword">return</span> n;
    }

<span class="comment">//</span>
    <span class="directive">public</span> <span class="directive">static</span> Geometry makeGeometry(Mesh mesh, Material mat, <span class="predefined-type">String</span> name)
    {
        Geometry geom = <span class="keyword">new</span> Geometry(name, mesh);
        geom.setMaterial(mat);
        <span class="keyword">return</span> geom;
    }

    <span class="comment">//</span>
    <span class="directive">public</span> <span class="directive">static</span> Geometry makeGeometry(Vector3f loc, Vector3f scl, Mesh mesh, Material mat, <span class="predefined-type">String</span> name)
    {
        Geometry geom = <span class="keyword">new</span> Geometry(name, mesh);
        geom.setMaterial(mat);
        geom.setLocalTranslation(loc);
        geom.setLocalScale(scl);
        <span class="keyword">return</span> geom;
    }
}</code></pre></div></div>
<div class="paragraph"><p>—
Debug.java</p></div>
<div class="listingblock"><div class="content"><pre class="CodeRay highlight"><code data-lang="java"><span class="keyword">package</span> <span class="namespace">org.jmonkey.utils</span>;

<span class="keyword">import</span> <span class="include">com.jme3.animation.AnimControl</span>;
<span class="keyword">import</span> <span class="include">com.jme3.asset.AssetManager</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.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.debug.Arrow</span>;
<span class="keyword">import</span> <span class="include">com.jme3.scene.debug.Grid</span>;
<span class="keyword">import</span> <span class="include">com.jme3.scene.debug.SkeletonDebugger</span>;
<span class="keyword">import</span> <span class="include">com.jme3.scene.shape.Line</span>;
<span class="keyword">import</span> <span class="include">static</span> <span class="include">org.jmonkey.utils.SpatialUtils.makeGeometry</span>;

<span class="comment">/**
 Example Vector Summ

 @author Alex Cham aka Jcrypto
 */</span>
<span class="directive">public</span> <span class="type">class</span> <span class="class">Debug</span>
{

    <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> showNodeAxes(AssetManager am, Node n, <span class="type">float</span> axisLen)
    {
        Vector3f v = <span class="keyword">new</span> Vector3f(axisLen, <span class="integer">0</span>, <span class="integer">0</span>);
        Arrow a = <span class="keyword">new</span> Arrow(v);
        Material mat = <span class="keyword">new</span> Material(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>);
        mat.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, ColorRGBA.Red);
        Geometry geom = <span class="keyword">new</span> Geometry(n.getName() + <span class="string"><span class="delimiter">&quot;</span><span class="content">XAxis</span><span class="delimiter">&quot;</span></span>, a);
        geom.setMaterial(mat);
        n.attachChild(geom);


        <span class="comment">//</span>
        v = <span class="keyword">new</span> Vector3f(<span class="integer">0</span>, axisLen, <span class="integer">0</span>);
        a = <span class="keyword">new</span> Arrow(v);
        mat = <span class="keyword">new</span> Material(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>);
        mat.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, ColorRGBA.Green);
        geom = <span class="keyword">new</span> Geometry(n.getName() + <span class="string"><span class="delimiter">&quot;</span><span class="content">YAxis</span><span class="delimiter">&quot;</span></span>, a);
        geom.setMaterial(mat);
        n.attachChild(geom);


        <span class="comment">//</span>
        v = <span class="keyword">new</span> Vector3f(<span class="integer">0</span>, <span class="integer">0</span>, axisLen);
        a = <span class="keyword">new</span> Arrow(v);
        mat = <span class="keyword">new</span> Material(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>);
        mat.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, ColorRGBA.Blue);
        geom = <span class="keyword">new</span> Geometry(n.getName() + <span class="string"><span class="delimiter">&quot;</span><span class="content">ZAxis</span><span class="delimiter">&quot;</span></span>, a);
        geom.setMaterial(mat);
        n.attachChild(geom);
    }

    <span class="comment">//</span>
    <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> showVector3fArrow(AssetManager am, Node n, Vector3f v, ColorRGBA color, <span class="predefined-type">String</span> name)
    {
        Arrow a = <span class="keyword">new</span> Arrow(v);
        Material mat = MaterialUtils.makeMaterial(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>, color);
        Geometry geom = makeGeometry(a, mat, name);
        n.attachChild(geom);
    }

    <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> showVector3fLine(AssetManager am, Node n, Vector3f v, ColorRGBA color, <span class="predefined-type">String</span> name)
    {
        <span class="predefined-type">Line</span> l = <span class="keyword">new</span> <span class="predefined-type">Line</span>(v.subtract(v), v);
        Material mat = MaterialUtils.makeMaterial(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>, color);
        Geometry geom = makeGeometry(l, mat, name);
        n.attachChild(geom);
    }

<span class="comment">//Skeleton Debugger</span>
    <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> attachSkeleton(AssetManager am, Node player, AnimControl control)
    {
        SkeletonDebugger skeletonDebug = <span class="keyword">new</span> SkeletonDebugger(<span class="string"><span class="delimiter">&quot;</span><span class="content">skeleton</span><span class="delimiter">&quot;</span></span>, control.getSkeleton());
        Material mat2 = <span class="keyword">new</span> Material(am, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>);
        mat2.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, ColorRGBA.Yellow);
        mat2.getAdditionalRenderState().setDepthTest(<span class="predefined-constant">false</span>);
        skeletonDebug.setMaterial(mat2);
        player.attachChild(skeletonDebug);
    }

    <span class="comment">///</span>
    <span class="directive">public</span> <span class="directive">static</span> <span class="type">void</span> attachWireFrameDebugGrid(AssetManager assetManager, Node n, Vector3f pos, <span class="predefined-type">Integer</span> size, ColorRGBA color)
    {
        Geometry g = <span class="keyword">new</span> Geometry(<span class="string"><span class="delimiter">&quot;</span><span class="content">wireFrameDebugGrid</span><span class="delimiter">&quot;</span></span>, <span class="keyword">new</span> Grid(size, size, <span class="float">1.0f</span>));<span class="comment">//1WU</span>
        Material mat = <span class="keyword">new</span> Material(assetManager, <span class="string"><span class="delimiter">&quot;</span><span class="content">Common/MatDefs/Misc/Unshaded.j3md</span><span class="delimiter">&quot;</span></span>);
        mat.getAdditionalRenderState().setWireframe(<span class="predefined-constant">true</span>);
        mat.setColor(<span class="string"><span class="delimiter">&quot;</span><span class="content">Color</span><span class="delimiter">&quot;</span></span>, color);
        g.setMaterial(mat);
        g.center().move(pos);
        n.attachChild(g);
    }
}</code></pre></div></div></div><div id="footer"><div id="footer-text">Version <br>Last updated 2020-05-21 00:29:23 +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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