%spellRoutineCheckAllowedTarget()

    This function has specific usefulness within a BlobbieScript used to
    implement a spell. The function makes particular use of variables
    pre-defined for spell BlobbieScripts and is provided to mimic behaviour
    present in the MUD's C source code as provided via #defined MACROS.

    This function should only exist within the loop over the spell's
    @targets. It will use the value of @spellId defined in the calling
    script to determine if the spell being invoked is an offensive spell.
    If the spell is offensive then it will verify that the spell is allowed
    to be cast by @actor upon @target. If the spell is NOT allowed, then
    this function will output the standard disallowed message and jump to
    the next iteration of the @targets loop.

    Example:

    protect
    {
        foreach( @targets as @target )
        {
            %spellRoutineCheckAllowedTarget( @actor, @target )

            // Spell does something if target is allowed.
        }
        endforeach
    }
    endprotect