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<span>instance_id</span>
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<h1>instance_id</h1>
<p>This <b>read only</b> <a href="../../../GML_Overview/Arrays.htm">array</a> holds all the <a href="Instance_Variables/id.htm"><tt>id</tt>s</a> of every <em>active </em>instance within the room. This means that if you have used any of the <a href="Deactivating_Instances/Deactivating_Instances.htm">Instance Deactivate</a> functions those instances that have been deactivated will not be included in this array (if you have used a value from this array previously, it will now return the keyword <a href="../../../GML_Overview/Instance_Keywords.htm">noone</a>).</p>
<p> </p>
<h4>Syntax:</h4>
<p class="code">instance_id[num]);</p>
<p> </p>
<h4>Returns:</h4>
<p class="code">Real (instance ID value)</p>
<p> </p>
<h4>Example:</h4>
<p class="code">for (var i = 0; i < instance_count; i ++;)<br/> {
<br/> with (instance_id[i]) speed += 0.1;<br/> }
</p>
<p>The above code will loop through all instances within the room and add 0.1 to their speed.</p>
<p> </p>
<p> </p>
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