DEFINE_ACTION_FUNCTION(ADehackedPickup, DetermineType)
{
    PARAM_SELF_PROLOGUE(AInventory);

    // Look at the actor's current sprite to determine what kind of
    // item to pretend to me.
    int min = 0;
    int max = countof(DehSpriteMappings) - 1;

    while (min <= max)
    {
        int mid = (min + max) / 2;
        int lex = memcmp (DehSpriteMappings[mid].Sprite, sprites[self->sprite].name, 4);
        if (lex == 0)
        {
            ACTION_RETURN_OBJECT(PClass::FindActor(DehSpriteMappings[mid].ClassName));
        }
        else if (lex < 0)
        {
            min = mid + 1;
        }
        else
        {
            max = mid - 1;
        }
    }
    ACTION_RETURN_OBJECT(nullptr);
}