====== ActorDistance2D ======
''fixed ActorDistance2D(int tid1, int tid2)''

===== Description =====
Returns the distance between two actors on the XY plane in mapunits, ignoring the Z dimension.

===== Example =====
<code>
print(s:"You are ", f:ActorDistance2D(0, monstertid), s:" mapunits away from the monster");
</code>