/**
@fn FLAG_NO_DROP
@section Use
<table>
	<tr>
		<th>Type(s)</th>
		<th>Description</th>
	</tr>	<tr>
		<td>
@ref page_type_13
		</td><td>    When a monster carries a projectile with &lt;don't drop&gt;,
    this item will never drop to the ground but
    vanish instead. If this object is shot, it can still drop
    after hitting an obstacle. You can prevent this by
    setting &lt;chance to break&gt; 100.</td>
	</tr>

*/