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copied!<p>What is the point of the declaration <code>class Component;</code> if you include <code>Component.h</code>, anyway? You cannot inherited from an incomplete type, so this declaration makes no sense.</p> <p>A wild guess is circular include issues, but it's really hard to tell without more information. I recommend reading <a href="http://archive.gamedev.net/archive/reference/programming/features/orgfiles/index.html" rel="nofollow">this article</a> on <em>Organizing Code Files in C and C++</em> if you are unclear on the subject.</p> <p>Edit:</p> <blockquote> <pre><code>Player.addComponent(StaticSprite, new StaticSprite()); </code></pre> </blockquote> <p>You cannot pass the <em>type</em> <code>StaticSprite</code> to a method. That's probably the source of the error. Show us the declaration of <code>addComponent</code>. What is the first parameter type?</p> <p>Edit:</p> <blockquote> <pre><code>void Entity::addComponent(TYPE type, void* component) </code></pre> </blockquote> <p>Okay, so what is the definition of <code>TYPE</code>? I guess it's just a typedef for <code>int</code> or something? In that case it should be clear that you cannot assign the type <code>StaticSprite</code> to an <code>int</code>.</p> <p>Edit:</p> <blockquote> <pre><code>enum TYPE{Base = 0, StaticSprite, DynamicSprite, Physics, Collision, Input, Particle, Audio, Scriptable, MaxType}; </code></pre> </blockquote> <p>Yep, there you have it. The <em>enumerator</em> <code>TYPE::StaticSprite</code> has absolutely nothing to do with the <em>type</em> <code>StaticSprite</code>, even though they have the same name. Give the enumerator some other name, for example <code>T_StaticSprite</code>, and the following code should work:</p> <blockquote> <pre><code>Player.addComponent(T_StaticSprite, new StaticSprite()); </code></pre> </blockquote> <p>(Whether this whole type enumeration thing is a good idea is a different question.)</p>

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