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            Phaser Editor 2D
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                v3.67.0
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  <section id="the-prefab-object">
<h1>The prefab object<a class="headerlink" href="#the-prefab-object" title="Link to this heading"></a></h1>
<p>The <a class="reference external" href="prefab-object.html">prefab object</a> is the object at the top of the <a class="reference external" href="../scene-editor/prefabs.html">prefab</a> file. You can add many objects to the scene, but only the one at the top will be considered as the real <a class="reference external" href="../scene-editor/prefabs.html">prefab</a>, the other objects will be ignored.</p>
<p>We did it this way for simplicity, but it also allows us to create different versions of the <a class="reference external" href="prefab-object.html">prefab object</a> and move them to the top of the list in case we want to promote a different object as the <a class="reference external" href="prefab-object.html">prefab object</a>.</p>
<p>Look in the next image, it shows the <strong>Dragon</strong> prefab. There are three objects in the file, but only the <strong>green dragon</strong> object will be used as the <a class="reference external" href="prefab-object.html">prefab object</a> of the <strong>Dragon</strong> <a class="reference external" href="../scene-editor/prefabs.html">prefab</a>. Also, look the others, non-top objects are rendered transparent in the <a class="reference external" href="../workbench/outline-view.html">Outline view</a>:</p>
<img alt="Prefab object" src="../_images/scene-editor-prefab-object-1-06272020.webp" />
<p>If later you decided to use a different dragon for your <a class="reference external" href="../scene-editor/prefabs.html">prefab</a>, then you can move it to the top of the scene and that’s all:</p>
<img alt="Another prefab object" src="../_images/scene-editor-prefab-object-2-06272020.webp" />
<p>Another characteristic of the <a class="reference external" href="prefab-object.html">prefab object</a> is that you cannot edit its <a class="reference external" href="variable-properties.html">Variable properties</a>, because, in the generated code, it is not referenced as a variable, it is referenced as <code class="docutils literal notranslate"><span class="pre">this</span></code>.</p>
<p>The <a class="reference external" href="prefab-object.html">prefab object</a> could be any object of any type (an <a class="reference external" href="image-object.html">image</a>, a <a class="reference external" href="text-object.html">text</a>, a <a class="reference external" href="container-object.html">container</a>, whatever type supported by the <a class="reference external" href="../scene-editor/index.html">Scene Editor</a>), even, it could be a <a class="reference external" href="../scene-editor/prefab-create-instance.html">prefab instance</a>. When the <a class="reference external" href="prefab-object.html">prefab object</a> is a <a class="reference external" href="../scene-editor/prefab-create-instance.html">prefab instance</a> (of the <a class="reference external" href="../scene-editor/prefabs.html">prefab</a> <strong>SomePrefab</strong>) then we say it is a <a class="reference external" href="../scene-editor/prefab-variant.html">prefab variant</a> of the <strong>SomePrefab</strong> <a class="reference external" href="../scene-editor/prefabs.html">prefab</a>.</p>
<section id="automatic-container-creation">
<h2>Automatic Container creation<a class="headerlink" href="#automatic-container-creation" title="Link to this heading"></a></h2>
<p>In many cases, your <a class="reference external" href="../scene-editor/prefabs.html">prefab</a> will be a single object, like an image. In other cases, you do group several objects in a <a class="reference external" href="container-object.html">Container</a>.</p>
<p>To simplify the workflow of creating a <a class="reference external" href="../scene-editor/prefabs.html">prefab</a>, the <a class="reference external" href="../scene-editor/index.html">Scene Editor</a> will follow these rules:</p>
<ol class="arabic">
<li><p>If you add an object in an empty <a class="reference external" href="../scene-editor/prefabs.html">prefab</a> scene, the new object will be the <a class="reference external" href="prefab-object.html">prefab object</a>.</p></li>
<li><p>If you create an object, but the <a class="reference external" href="../scene-editor/prefabs.html">prefab</a> scene already contains a <a class="reference external" href="prefab-object.html">prefab object</a>, then:</p>
<blockquote>
<div><p>2.1. If the <a class="reference external" href="prefab-object.html">prefab object</a> is a <a class="reference external" href="container-object.html">Container</a> , the new object is added to it.</p>
<p>2.2. If the <a class="reference external" href="prefab-object.html">prefab object</a> is not a <a class="reference external" href="container-object.html">Container</a>, then a new <a class="reference external" href="container-object.html">Container</a> will be created to group the old <a class="reference external" href="prefab-object.html">prefab object</a> and the new object. Finally, the newly created <a class="reference external" href="container-object.html">container</a> will be the new <a class="reference external" href="prefab-object.html">prefab object</a>.</p>
</div></blockquote>
</li>
</ol>
<p>In a few words, following these rules, the <a class="reference external" href="../scene-editor/index.html">Scene Editor</a> automatically group the objects in a <a class="reference external" href="container-object.html">Container</a>, if needed.</p>
</section>
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