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            Phaser Editor 2D
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<li class="toctree-l3 current"><a class="current reference internal" href="#">Adding User Components to a Prefab</a><ul>
<li class="toctree-l4"><a class="reference internal" href="#generating-the-code-for-a-component-in-a-prefab-instance">Generating the code for a component in a prefab instance</a></li>
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  <section id="adding-user-components-to-a-prefab">
<h1>Adding User Components to a Prefab<a class="headerlink" href="#adding-user-components-to-a-prefab" title="Link to this heading"></a></h1>
<p>In the previous section we shown how you can add a user component to an object. But, what does happen if you add a user component to a prefab? It is practically the same, but this component will be present in all the prefab instances too.</p>
<p>Let’s see this example of a moving platform prefab. It contains the <strong>HorizontalMove</strong> component:</p>
<img alt="The user components of a prefab." src="../_images/scene-editor-user-components-add-prefab-object-20230627.webp" />
<p>When you select an instance of this <strong>MovingPlatform1</strong> prefab, it also shows the <strong>HorizontalMove</strong> component, but highlighting that it belongs to the <strong>MovingPlatform1</strong> prefab.</p>
<p>The section’s title contains the component’s name and the name of the prefab it belongs to. The section’s body shows the component’s properties and look you can lock/unlock them:</p>
<img alt="Components of a prefab instance." src="../_images/scene-editor-user-components-prefab-instance-components-20230627.webp" />
<section id="generating-the-code-for-a-component-in-a-prefab-instance">
<h2>Generating the code for a component in a prefab instance<a class="headerlink" href="#generating-the-code-for-a-component-in-a-prefab-instance" title="Link to this heading"></a></h2>
<p>The <a class="reference external" href="user-components-compiler.html">user components compiler</a> will generate the code to changing the component’s properties like this:</p>
<div class="highlight-javascript notranslate"><div class="highlight"><pre><span></span><span class="c1">// movingPlatform2 (components)</span>
<span class="kd">const</span><span class="w"> </span><span class="nx">movingPlatform2HorizontalMove</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">HorizontalMove</span>
<span class="w">                           </span><span class="p">.</span><span class="nx">getComponent</span><span class="p">(</span><span class="nx">movingPlatform2</span><span class="p">);</span>
<span class="nx">movingPlatform2HorizontalMove</span><span class="p">.</span><span class="nx">horizVelocity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="o">-</span><span class="mf">50</span><span class="p">;</span>
<span class="nx">movingPlatform2HorizontalMove</span><span class="p">.</span><span class="nx">minX</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">540</span><span class="p">;</span>
<span class="nx">movingPlatform2HorizontalMove</span><span class="p">.</span><span class="nx">maxX</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">1170</span><span class="p">;</span>
</pre></div>
</div>
<p>Note it doesn’t create the component, else it gets the component from the <strong>movingPlatform2</strong> prefab instance.</p>
</section>
<section id="hiding-a-component-to-the-prefab-instances">
<h2>Hiding a component to the prefab instances<a class="headerlink" href="#hiding-a-component-to-the-prefab-instances" title="Link to this heading"></a></h2>
<p>Maybe you don’t want to show the component of a prefab in the prefab instances. Because it is a component with local properties and behaviors and it could be perfectly hidden to the prefab instances. For doing this, you can uncheck the <strong>Export</strong> parameter of the component in the prefab:</p>
<img alt="Export parameter." src="../_images/scene-editor-user-components-export-parameter-20230627.webp" />
</section>
<section id="actions-for-a-component-in-a-prefab-instance">
<h2>Actions for a component in a prefab instance<a class="headerlink" href="#actions-for-a-component-in-a-prefab-instance" title="Link to this heading"></a></h2>
<p>These are the actions associated to the user component of a prefab instance:</p>
<img alt="Actions for a user component instance." src="../_images/scene-editor-user-components-instance-menu-20230627.webp" />
<ul class="simple">
<li><p><strong>Select Objects With HorizontalMove</strong>: selects in the scene all objects containing the <strong>HorizontalMove</strong> component.</p></li>
<li><p><strong>Open Definition Of HorizontalMove</strong>: opens the definition of the component in the <a class="reference external" href="./user-components-editor.html">User Components Editor</a>.</p></li>
<li><p><strong>Reveal in MovingPlatform1 File</strong>: opens the prefab in a new Scene Editor and selects the <strong>HorizontalMove</strong> component.</p></li>
</ul>
</section>
</section>


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